MUMBAI PORT TRUST

CIVIL ENGINEERING DEPARTMENT

TENDER NO. E 10/2017 MODERNIZATION OF EXISTING MUMBAI

INTERNATIONAL CRUISE TERMINAL (MICT) AT INDIRA DOCK, MUMBAI

Volume VI –SPECIFICATIONS OF FAÇADE WORKS

CIVIL ENGINEERING DEPARTMENT

THIRD FLOOR, PORT HOUSE, SHOORJI VALLABHDAS MARG,

BALLARD ESTATE, MUMBAI – 400 001

TELEPHONE NO. – (091-22) –66564558

FAX NO.– (091-22) – 2261 6804

WEBSITE - http://www.mumbaiport.gov.in

SPECIFICATION FOR CURTAIN WALL

This is a Technical Specification to accompany detailed design drawings. The contract documents provide the design intent for the facade systems and associated works. The Contractor is to produce finalized shop and fabrication drawings that will fully comply with the specified requirements and design drawings. The Specification together with the drawings indicates the design intent and scope of the works. Together they illustrate the mandatory geometry of façade components including extrusion forms, materials to be used in the design, define the performance parameters for the facade, provide minimum acceptable standards and establish a regime for verification of the design, fabrication and installation processes. Contractor is to present different façade system options to Engineer for approval prior to commencement of work. The Contractor shall assume responsibility for the detailed implementation of the design, procurement, fabrication and installation of all Facades and related elements in accordance with the Contract Documents to satisfy the performance requirements stated in this Specification. It shall be the Contractor’s responsibility to warrant the above to the building Mbpt, and to ensure that all materials and work meet the requirements of the contract documents. As scope and performance documents, the Drawings and Specifications do not necessarily indicate or describe in detail all work required for the full performance and completion of the Contract Works. The Contractor shall provide all items required for proper completion of the Contract Works without adjustment to the sub-contract price unless otherwise agreed in writing. . Key Architectural design Features : -

o Vertical Mullions (minimalist aesthetic appearance)

o No horizontal members o Point supported system on mullion. o Mullion set back from inside of glass by minimum 2 inches to visually to provide thermal performance o Minimize the mullion’s appearance from the exterior (offset glass plane from mullions dramatically expresses

the Facade in its purest form. o Barrier glazing system (exterior wet seal; interior silicone joint filler gasket for smooth finished appearance) o Thermally broken system.

Part 1 – General 1.01 Related documents and general requirements: A. General Contract Provisions and Sections of Division 1 apply to Work of this Section. Examine all other Sections of the Specifications for requirements which affect the Work of this Section. Coordinate the Work of this Section with the related Work of other trades, and cooperated with such trades to assure the steady progress of all Work of this Contract. 1.2 Scope

A. The Facade shall include all engineering, labor, materials, tools, equipment, appliances and services required to manufacture, deliver, furnish and install all items necessary for the proper execution and completion of the Work as shown on the Contract Documents, as specified herein, and/or as required by job conditions. All items not shown or specified, but which are necessary for the proper execution and completion of the Work shall be provided by the Facade Contractor. B. The extent of the Facade covered herein is shown on the building elevations, sections, floor plans and details of the Contract Documents and includes a fully enclosed, structurally sound, weather tight wall system including but not limited to:

Glass panels

1. Extruded Aluminium Mullions without reinforcement / reinforcement with SS 316 Grade material only if required. 2. Cast aluminium wind load restraint support 3. Cast aluminium dead load support. 4. Head, sill and jamb glazing channels and related anchor supports 5. Joint filler silicone gasket at interior glass joints 6. Insert setting components, support brackets, expansion joint solutions as required accommodating wall

expansionand building movement. 7. Sealants, caulking, joint fillers, miscellaneous gaskets, fasteners and weeps, closures, and cut outs, as

shown or asmay be required in conjunction with the system or to join the system to adjacent construction. 8. Integrated door portal framingDoors and hardware.

1.3 LOCAL CODES AND STANDARDS: All Design, Material and Workmanship shall comply with the following minimum standards: Indian standards

1. IS 875 (Part 3) Design loads for Buildings and structures for wind loads 2. IS 1893 (Part 1) Earth Quake resistant design of structures 3. IS 800 General construction in steel 4. Applicable building code: IS

Aluminium 1. BS 1474 Extruded aluminum alloy profiles 2. DIN 17615 (Part-1) Tolerance in extrusion 3. BS 3019 (Part1) TIG welding of aluminum alloys 4. BS 3571 (Part 1) MIG welding of aluminum alloys. 5. BS 8118 Design guidelines for aluminium structural framing system. 6. BS 1470 Aluminium alloy sheets grade and Thickness

Mild steel 1. BS 4190 Mild steel 2. Façade India Testing INC Page No: 7 3. External Façade & Glazing Works 4. BS 4360 Mild steel grades 5. BS 2659 (Part1) Protection of iron and steel by aluminium and zinc against atmospheric corrosion. 6. BS 2989 (Part1) Continuously hot dip zinc coated steel 7. BS 3019 TIG welding 8. BS 3571 MIG welding 9. BS 729 Hot dip galvanized coating on iron and steel

Stainless steel 1. BS 1449(Part-2) Stainless steel sheet

Fastners& anchors 2. BS 6105 SS grade A2( 304 general use ) Corrosion resistant Stainless steel 3. A4 grade (316 grade for severely corrosive climates). 4. BS 6161: Part 8 Determination of the fastness to ultraviolet light of colored anodic oxide 5. BS 6161: Part 18 Determination of surface abrasion resistance.

Glass 1. BS 952 Glass for glazing 2. BS 6262 Glazing for buildings 3. BS 5713 hermetically sealed double glass unit 4. AS 1288 Glass selection and installation 5. ASTM C 1036 Glass 6. ASTM C 1048 Heat Strengthened and Fully Tempered Glass 7. ASTM C 1172-03 Laminated Architectural Flat Glass

Gaskets 1. BS 4255 EPDM gaskets 2. ASTM C 1115 Silicone Rubber Gaskets.

Sealants 1. BS 6213 Selection of constructional sealants

2. BS 5889 Silicon Sealants 3. BS 4254 Two part polysulphide based sealant 4. ASTM C 1184 Specification for Structural Silicone sealant 5. ASTM C 920, Specification for Joint Sealants. 6. ASTM C 1135 Specification for Tensile, Adhesion & Properties of Sealant. 7. ASTM C 509 Specifications for Sealing Material. 8. ASTM C 1087 Specification for test method of determining Compatibility of materials and other accessories. 9. THERMAL INSULATION CWCT Guidelines (Centre for Window & Cladding Technology) 10. VAPOUR CONTROL LAYER CWCT Guidelines (Centre for Window & Cladding Technology) 11. FABRICATION CWCT Guidelines

Finish 1. BS 3987 Anodic oxidation coating on aluminum for external architectural application 2. BS 1615 Anodic oxidation coatings on aluminium and its alloys. 3. BS 6161 Test method for anodic oxidation coatings on aluminum and its alloys. 4. BS 4842 Liquid organic coating for aluminium alloy extrusions, sheets and preformed sections for external

architectural purposes. 5. AAMA 2605.2 Specification for high performance organic coating 6. AAMA 2604.2 Specification for high performance powder coating 7. BS 6496 Specification for Powder coating for aluminum alloy extrusions, sheet and preformed sections. 8. BS 6497 Powder coating to hot dip galvanized hot rolled steel sections for external architectural purposes.

1.4 Performance Requirements

1. ASTM E 283 Air leakage performance under Uniform static air pressure 2. ASTM E 331 Water penetration under uniform static air pressure 3. ASTM E 330 Structural performance under uniform static air pressure. 4. AAMA 501.1 Water penetration by Dynamic pressure. 5. AAMA 501.4 Seismic floor displacement by static method. 6. AAMA 501.2-03 Water leakage-field check of installed storefronts, Curtain walls & sloped glazing systems 7. AS 1580 Methods of test for paint and related material. 8. E 488 Strength of anchors in concrete and masonry elements

A. The Work, as erected, shall meet or exceed the following structural and weather resistance requirements As demonstrated by engineering calculations and prior testing of mock-up(s). B. Provision for Thermal Movements

1. The Work shall be designed to provide for such expansion and contraction of component materials as will be caused by an exterior ambient temperature of -20oF to +110oF (or to values provided by building engineer), a metal surface temperature of +180oF for dark colors and +150oF for light colors, and an interior ambient temperature range of +50oF to +75oF(or to values provided by engineer),, without causing buckling, stresses on glass, metal, joint seals, undue stress on structural elements, damaging loads on fasteners, reduction of performance or other detrimental effects.

2. The amount of such thermal movement that is accommodated in the Facade shall be identified on that

drawings, and shall be accompanied by thermal calculations. A. Provision for Movement of the building Structure

1. The Work shall be designed to accommodate performance criteria, including but not limited to dead load and live load deflection, thermal expansion, elastic shortening and/or sway and torsion of the building frame, and seismic forces.

2. The amount of such movement that is accommodated in the Facade design shall be identified on that Drawings.

3. Anticipated building live load vertical movement (including allowance for creep, elastic shortening of vertical components and the vertical component of sway) and anticipated lateral movement due to wind load and/or seismic load values provided by building Structural Engineer.

B. Structural Properties 1. Minimum design wind pressures for the Work acting normal to the plane of the surface of the Work shall be the

greater of those required by the applicable Building Code, or as recommended by the Engineer as a result of his expertise in the design and construction of such Work, but no less than 30 PSF positive and negative, except at corners 8'-0" in from the edge on both faces where the design load shall be no less than 45 PSF positive and negative.

2. At corners and other changes in plane, both surfaces shall be assumed to experience the worst combination(s) of inward and outward design pressures simultaneously.

3. A one third increase in allowable stress shall not be permitted in calculations employing these design pressures, unless such calculations are based upon minimum rather than nominal metal thickness. Glass members or elements shall not be relied upon or utilized in calculations to demonstrate structural adequacy.

4. The deflection of any framing member, in a direction normal or perpendicular to the plane of the wall, when subjected to the design loads specified above shall not exceed L/110 where L is the clear span of the member, nor shall the deflection of a framing member overhanging an anchor point exceed 2l/110

5. The deflection of any framing member in a direction parallel to the plane of the wall, when carrying its full dead load, shall neither exceed an amount which will reduce the glass bite at the perimeter channel below 75% of the design dimension, nor reduce the clearance between that member and the edge of the glass to less than 1/4".

6. Glass deflection (for each panel independently) at full design load shall be limited to L/140 where "L" is the distance between pinch plates or the measurement of the glass edge spanning between vertical mullions, whichever is greater.

E. Seismic requirement. –

1. Seismic rack test – two directions @150% design pressure at design movement (or) Seismic movement @ design displacement at two directions – AAMA-501-4.

2. Seismic rack test @ 100% - two directions Design pressure at deign movement (or) Seismic movements @ design displacement at two directions AAMA E 283/

F. Water Penetration

1. Water penetration, for purposes of this Specification Section, is defined as the appearance of uncontrolled water on the indoor face of any part of the Work. "Controlled" water or condensation is that which is demonstrably drained harmlessly to the exterior of the Work without endangering or wetting adjacent surfaces or insulation, and not visible in the final construction.

2. No uncontrolled water penetration shall occur at a pressure differential of 12PSF as tested in accordance with ASTM E-331.

G. Air Leakage

1. Air leakage through the Work shall not exceed 0.06 CFM per square foot of wall area at a test pressure of 6.24 PSF as tested in accordance with ASTM E-283.

H. The Contract Drawings and Specifications may not delineate some conditions or modifications which may be required to complete the Work of this Section. The Engineer shall develop any conditions not detailed on the Drawings or noted in this Section through shop drawings to the same level of aesthetics and in compliance with performance criteria, as intended in the Drawings and the Specifications. I. Fire Safety: For conditions where the mullion passes in front of the slab edge as it is attached to a building, provide a continuous aluminum or steel slab edge metal that will allow the fire safety and smoke seal material to be applied per manufacturer's specifications. 1.5 Quality Assurance

a. System technical description

b. Drawings of the system must to submit by System provider for execution. Include: I. plans, elevations and sections of each wall type

II. details of system for each wall type: head, sill, interior vertical joints, interior horizontal joints, jambs, special details, anchor detailscomponent details of each component

1. Compliance information for section 1.06.2 & 3. List job name, location, yearcompleted, name of GC, Engineer

and PE with contact email and telephone of manager for each party.

2. Calculations showing the sections and components are in compliance with the performance requirements of this specification.

3. Copy of mock up test report. 4. Provide copy of test reports from independent 3rd party laboratory demonstrating system has passed

the following tests: a. static air infiltration test per ASTM E 283 b. static pressure water resistance per ASTM E 331 to 12 psf c. uniform load deflection test per ASTM E 330 (30 psf) d. above tests to be conducted with at least two (2) operable windows as part of the mock up test

assembly. Windows to be cycled 300 times prior to conducting test. 1.6 Quality Control Program. The Contractor shall be responsible for all quality control procedures necessary to ensure that all finished elements conform to the requirements of this specification. The quality system requirements shall be in accordance with ISO standards. The Contractor shall prepare a Quality Plan and Quality Manual for the fabrication ofthe facade components. Document all quality control systems, work procedures, and checklists, and an inspection and test plan, for the manufacture of all elements in accordance with this specification duly approved by Engineer. Internal quality audits shall be scheduled and shall include the quality system, inspectionand testing, handling, storage, packaging and the control of quality records. The Quality Manual and site Quality Plan shall be submitted to the Engineer for approval before commencement of work. Submit in accordance with Schedule. The Contractor’s Professional Engineer shall carry out external quality audits of thefabrication of the whole of this Contract. All such reviews shall be submitted to the Engineerfor review and record purposes. 1.7 Maintenance &Guarantees On completion, provide four copies of the maintenance manual procedures for the satisfactory long-term care and regular maintenance of the various glazed walls, windows, canopies, cladding system installations and glass balustrades (and associated works), including: 1. The name and address and telephone number of each firm and/or Contractor involved in the supply or fabrication

of materials, components, assemblies and finishes. 2. An outline description of the installation and a detailed description of specific items with product names, types,

serial numbers, etc. 3. Recommend maintenance periods and planned preventive maintenance procedures. 4. Copies of manufacturers’ warranties or guarantees, service manuals, brochures,recommendations, etc. 5. Copies of test and approval certificates. 6. One original copy of each shop drawing, ‘AS BUILT DRAWING’, and the like relevant tothe installation. 7. One microfiche or computer readable CAD format on CD (AutoCAD 2000 or higher)copy of each shop drawing,

‘AS BUILT DRAWING’, and the like relevant to theinstallation. 8. A list of replacement parts recommended to be held on site, with the names of suppliers. 9. Realignment and adjustment instructions where relevant. 10. Procedures for dismantling and reassembling. 11. Finishes and their architectural description. 12. Include in the manual, log book pages set up for recording the times of performance of theabove procedures,

sufficient in number to receive the entries for 10 years. 13. Show examplesof typical entries by recording any maintenance procedures (such as cleaning) performedduring

the contract and defects liability periods. 14. The form of the manual and logbook shall be A4 size, printed or typed on durable printingpaper, each page

consecutively numbered, neatly bound in durable vinyl or similar hardcovers, and permanently labelled with the

project name and date of issue. Any wordprocessing files shall be supplied in the latest Microsoft Word format on CD.

15. The Contractor shall ensure that the all guarantees is given to MbPT. The guarantee shall state that all Work in accord with Drawings and Specifications, as amended by any changes thereto authorized by the Engineer, free from defects in materials and workmanship, and weather tight for a period of 15 years.

16. The Contractor shall agree to repair or replace defective materials and workmanship to "like new condition", including such exploratory work as necessary to determine the cause, during the guarantee period, at no additional cost . Painted finishes shall carry the paint manufacturer's standard warranty.

17. Contractor shall be responsible for damage to the building and furnishings occasioned by defective materials or workmanship or damage as part of repairs to the Work. Guarantee does not cover damage resulting from vandalism or act of nature exceeding performance criteria.

18. Guarantee shall further state that glass shall be guaranteed against breakage due to defects in glass materials,

glazing hardware, fabrication of insulating units, and/or installation for a period of 10 years from the date of issuance of the Certification of Final Completion. This guarantee shall by provided by the glass manufacturer.

19. Silicone sealants shall carry a 10 year warranty from the sealant manufacturer against adhesive or cohesive failure and staining in a form acceptable to the Engineer.

20. Defective materials and workmanship is hereby defined to include, but not be limited to,evidence of:

a. Penetration of water into the building. b. Air infiltration exceeding specified limits. c. Structural failure of components resulting from forces within specified limits. d. Delaminating of the insulated glass unit. e. Cracking, crazing, flaking of coatings and opacifiers. f. Discoloration of excessive fading, excessive non- uniformity, pitting, cracking, peeling, or crazing of

finish or corrosion. g. Secondary glass damage and/or damage due to falling Facade system curtain call components. h. Adhesive or cohesive failure of sealant. Staining caused by sealants. i. Crazing on surface of non-structural sealant.

The foregoing guarantee shall not, however, be a limitation on any rights which the Mbpt would have, either expressed on implied, in connection with this Contract in the absence of such a guarantee, the said guarantee being given only on the greater assurance of the Mbpt. Part 2 – Products 2.1 Curtain wall system The drawings show a Curtain Wall design concept utilizing a through- The-joint point supported approach for the Facade solution. It is intended that a single company bear contractual responsibility for engineering, fabricating and erecting the entire facade including tensile fabric and GRC paneling with doors. 2.2 Manufacturers The following extruders are acceptable suppliers of products,these manufacturers must comply prior to bid with the requirements of section 1.06. Alternate manufacturers' products shall not alter the performance, design intent, geometry, site lines, support locations and loads, interface details, or Architectural intent of the system. A. Aluminium

a. Hindalco b. Jindal c. US Aluminum d. Gulf Extrusions e. Zhowang Aluminum

B. Glass a. Viracon b. Saint Gobain c. Asahi d. Guardian

Alternate manufacturers' products shall not alter the performance, design intent, geometry, thickness, support locations, interface details, or Architectural intent of the system. Submit product data to the Engineer for approval. 2.3 Components and Materials A. Metals

1. Provide sizes, shapes and profiles as shown and/or required. Provide thickness, as necessary, to comply with structural loading requirements. Provide finish of carbon steel members per section 08900.

2. Aluminum extrusions: 6005A-T5 or 6061-T6 3. Aluminum castings:

a. minimum Fy (min) = 28 ksi b. ultimate tensile strength Fu (min) = 30ksi

4. Gusset plates - A36 or A572 as required and specified on drawings. 5. Stainless Steel tubing - 304 stainless steel, unless exterior application exposedto weather then use 316

stainless steel. 6. Stainless Steel tension rods/cables and end fittings to be non-magnetic 300 series S.S., all with a #4 satin

finish. If exterior application exposed to weather use only 316 stainless steel with #4 satin finish. 7. Carbon Steel tension rods - painted carbon A500 Grade B steel as called for in the final construction

documents. 8. Tension rods end fittings to provide at least 1" take-upper assembly. Equivalent rod/cable connection detailing

permitted subject to Engineer'sapproval. 9. Anchor gusset plates: Structural steel per ASTM A36primed and painted as directed by Mbpt. 10. Alloy and temper as recommended by the manufacturer and finish applicator, to comply with the requirements

of performance, fabrication and application of finish. Minimum thickness shall be3mm B.Glass General Requirements for all types of Glass -

I. The glass production facility should provide a fully traceable history of glass panels, with a unique record sheet for each panel. The batch number dates and times of each process should be recorded including delivery, cutting, heat strengthening, heat soaking, coating, lamination, fabrication of DGU etc. All base supply float glass should be/have:

a. Comply with the requirements of BS EN 572 parts 1 and 2 and q3 of ASTM C1036. b. Clean cut, without significant edge faults that produce risk of breakage (including feathered edges,

shells or other imperfections) and free from bubbles, inclusions, cracks, rippling, dimples, sleeks or other defects.

c. Cut to accurate sizes in the factory. d. The glass production facility should provide a fully traceable history of glass panels, with a unique

record sheet for each panel. The batch number dates and times of each process should be recorded including delivery, cutting, heat strengthening, heat soaking, coating, lamination, fabrication of DGU etc.

e. The quality of views through the glass from inside within a single level must be consistent. f. The visual quality of glass surface reflections within a single façade type on the same elevation should

be consistent. g. No local defects producing irregular reflections, i.e. no distortion of more that .05 diopter. h. Glazing more than 3m above the ground with unsupported edges to be laminated. i. Glazing that is inclined by more than 15° from vertical to be laminated.

2. Thickness The thickness and dimensions of glass shown on the drawings are minimum thicknesses, not prescribed thicknesses or dimensions. Calculate the glass thicknesses, using the recommendations in the relevant standards or validated proprietary design methods to meet the structural, environmental, and acoustic and safety requirements as approved by Engineer..

3. Visual Quality a) Visual distortions of views and reflections to minimized. b) Visual quality of views and reflections to be established using visual mock-ups. c) Glass used for visual mock-ups to follow actual composition where possible. d) Glass from visual mock-ups to be retained until one year after completion

4. Heat Treatment

a) Prior to heat treatment glass must comply - a) Grind flat edges to a small arris. b) Dubb Corners. c) Grind out small shells and/or chips. d) Maximum chip/shell diameter 2 mm. e) Not more than four randomly placed edge located chip/shells in any single pane of glass.

5. Heat Strengthened Glass

Heat strengthened glass to / be: a) Comply with the requirements of ASTM 1048- for Kind HS glass. b) Tempered on a roller hearth furnace eliminating tong marks c) Conform to the following requirements in the horizontal heat treatment process:

a. Maximum bow: 0.1% i. ii. Roller wave: All thicknesses 0.075mm depth maximum between peaksand troughs ii. Edge dip: 0.25mm maximum

d) Identification marks indicating its nature and processor to be located in the bottom leftwhen viewed from inside. e) Locate roller marks on heat treated glass parallel to the sill (horizontal) f) Demonstrate by the prime manufacturer’s testing that the residual surface compressive g) Stress in the glass is between 35 N/mm² and 50 N/mm² when measured by GASP inaccordance with ASTM

F218-95 (2000). Demonstrate the uniformity of RSCS over thearea of the panel by either GASP or other tests as approved by the Engineer.

h) For point supported glass using heat strengthened glass the residual surfacecompressive stress to be in the range of 45N/mm² to 50N/mm². At least 2 numberGASP test results to be submitted for each batch of glass for each day of production.

6.Fully Toughened/Tempered Glass Toughened/Tempered glass to be / have:

a) Conform to ASTM 1048-04 Kind FT. b) Glass to come from a source that uses computerized optical methods to scan the floatglass during production

for inclusions. The glass used for toughening should be of thehighest graded quality from this scanning. c) Tempered on a roller hearth furnace eliminating tong marks. d) Conform to the following requirements in the horizontal toughening process:

a. Maximum bow: 0.1% b. ii. Roller wave: All thicknesses 0.075mm between peaks and troughs c. iii. Edge dip: 0.25mm maximum

e) Location of Identification marks indicating its nature and processor to be agreed with theEngineer. f) Locating of roller marks on heat treated glass parallel to the sill (horizontal) g) Heat soak test all toughened glass h) Heat soaking to EN 14179 as amended by the heat soak procedure described inAppendix B. i) Provide the Engineer with copies of temperature log records for each batch and anystatistical analysis of the j) test data. The manufacturer shall, upon request, show bystatistical analysis of test data that the probabilityof

failure is less than one in 130 tonnes. k) Demonstrate by the prime manufacturer’s testing that surface compressive stress in theglass is greater than or

equal to 100 N/mm² when measured by GASP in accordancewith ASTM F218-95 (2000). l) Do not use Toughened (Tempered) glass in situations where breakage could result in glass falling more than 3

meters to an occupied area, unless specifically approved orthe glass is laminated. 7. Laminated glass Laminated glass to have / be:

a) Comply with ASTM C1172. b) PVB interlayer complying with BS 6206 Class A. c) Edge steps less than 0.25mm in toughened or heat-treated glass. Annealed glasslaminate shall have no step. d) Bear identification marks indicating its nature and processor. e) Panes to have edges finished from the autoclave. Protect the interlayer material fromthe effects of moisture

absorption in service including clouding, shrinking back,degassing and de-lamination.

f) Ensure that the interlayer is compatible with glazing sealants. Undertake a compatibilitytest plus accelerated weathering to ensure that leeching does not occur.

g) The glass shall not delaminate. 8. Frit coated glass Frit coated glass to be/have

a) Comply with requirements of ASTM C 1376-97. b) Ceramic ink applied to areas of heat-treated glass using the silk screen process. c) Fuse the ceramic ink to the surface of the glass during the heat treatment process. d) Ceramic ink to be permanent, durable and resistant through the design life of the curtainwall. e) The type, colour and solar properties of the ceramic ink to be submitted for review priorto commencementof

production. f) Resistance to attack from mechanical damage or abrasion, during normal use and maintenance. g) Resistance to weathering, fading or discolorations due to attack from climaticconditions, UV or atmospheric

pollutants. h) The screen printed face of the glass facing the inside of the building in the finalconstruction. i) Refer to architectural drawings for pattern and submit samples to the Engineer prior tomanufacture.

9. Insulating glazed units Insulating glazing units to be / have:

a) Hermetically sealed complying with BS5713. b) Mechanically applied primary poly-isobutylene seal located between glass and spacerproviding a continuous

vapor proof barrier of a minimum width of 2mm and asecondary two part silicone sealant extending around the perimeter of the unit.

c) The design of the secondary seal consistent with the glazing details. Where the unit issupported by structural sealant or clips to the spacer bar the secondary seal to bedesigned for the effects of wind and barometric pressures.

d) Aluminium alloy spacers with a black finish and sufficient rigidity for their purpose. Formed to accommodate seals and to contain desiccant.

e) All breather tubes nipped closed prior to installation. f) All corners and joints fabricated so as to ensure a water vapor tight construction. g) Desiccant of molecular sieve Type 3A complying with ASTM-E-774.

10. Performance Coating Low E -emissivity coating to be / have:

a) Nominally neutral in colour and uniform in tone, hue, colour, texture, pattern andopacity. b) Consistent appearance to the glazed units. Allowable pinholes in coated surfaces: c) Diameter 0.8-1.2 mm (2 within 300x300mm) d) Diameter 1.2-1.6 mm (1 per sheet) e) Diameter 1.6 mm and above not allowed f) Any edge deletion of coatings stopped within 0.5mm of the primary seal. g) The Low-Emissivity coating shall be applied to the glass either by pyrolytic or vacuum (Sputtering)

deposition method, soft coat Low-E is acceptable for double glazed units onlyexcept where the DGU is curved in which cases hard coat Low-e is acceptable. This coatingwill be applied to control the solar heat gain and enhance the energy performance andcomfort level of the building. The coating shall meet the requirements of ASTM C 1376-97and satisfy the thermal performance of the facade.

h) Any heat strengthening or toughening of glass with a low-e coat shall be completed in aconvection oven. i) Conduct independent laboratory tests to verify the “U” and “SC” values of the glassdelivered against the

data provided by the glass supplier. This would be in the form of1(one) number of sample testing for each type of glass.

j) Coating applicator to be from single source. Provide source of coating for Engineer’sapproval. C. Sealants

1. All joints, which are sealed with sealant as part of the fabrication or erection procedure, shall be sealed with an approved low/medium modulus silicone sealant (exposed or concealed) in manufacturer's standard color as selected by the Mbpt. All perimeter sealant (metal to adjacent construction) shall be sealed with an approved low/medium modulus silicone sealant in manufacturer's standard color as selected by the Mbpt. Silicone sealant shall be as manufactured by General Electric (Silpruf) or Dow Corning (790 or 795) or Mbpt approve equal.

2. In using specified sealant, strictly observe printed instructions of sealant manufacturer regarding joint size, limitations, backer rod, mixing, cleaning, surface preparation, priming and application. A primer shall be used, unless written instructions from the sealant manufacturer advise to the contrary, and sealant manufacturer certifies that the lack of the use thereof will not reduce sealant performance. Sealant shall not be applied when substrates are wet or when the temperature is below 40oF, unless special low temperature application procedures, as recommended by the sealant manufacturer are followed.

3. Care shall be exercised to insure against "three surface adhesion". Bond breakers shall be provided

where necessary. 4. Provide certification from sealant manufacturer that the sealant manufacturer has reviewed all sealant details

and finds sealant suitable for the purpose intended, compatible with and will not stain the surfaces with which they are in contact. Statement as to compatibility, adhesion sufficiency and non-staining shall be accompanied by actual test results on production substrates performed in accord with applicable ASTM procedures. Cleaners used in laboratory testing shall be as intended for use on the Work and shall be VOC complaint with local governmental requirements.

2.4 Accessories

A. Fasteners visible or exposed to the weather to be fabricated from non-magnetic stainless steel (316 alloy or equivalent).

B. Self-drilling screws may not be used without approved test reports. C. Slip joint linings/sleeves/shim: Provide stainless steel sleeve spacers and/or suitable bearing pads, as required,

to insure free noiseless movement between surfaces where expansion and deflection movements are intended. Provide "Eel Slip", "Nylatron" or high impact polystyrene shims or pads or equivalent plastic units or sizes and thickness (minimum 1/16" except 1/8" for "Eel Slip) recommended by the manufacturer to permanently prevent "freeze up" of joints.

D. Flashing require within the system and to adjacent construction shall be aluminum. 2.5 Fabrication A. General All parts of the Work shall be of the materials, design, sizes and thickness shown or note on the Drawings and/or specified in this Specification Section or as may be required to meet the aesthetic intent and design performance requirements. Methods of fabrication and assemble, however, unless specifically stated, shall be at the discretion of the manufacturer and subject to the acceptance of the Mbpt. B. Workmanship All work shall be done by competent workman thoroughly skilled in the trade. Use no materials, equipment or practices that may adversely affect the functioning, appearance and durability of the completed Work and related construction. The work shall be accomplished in compliance with the specified criteria and without buckling, opening of joints, undue stress on fasteners, sealant and gaskets, opening of welds, cracking of glass, leakage, noises or other harmful effects. C. Joints in Metalwork All exposed Work shall be carefully matched to produce continuity of line and design with all joints, unless otherwise shown or specified, being accurately fitted joints and rigidly secured. Any exposed edges shall be finished to match face of the Work. D. Shop Assembly As far as practicable, all fitting and assemble work shall be done in the shop. E. Exposed Fasteners Exposed fasteners on finished surfaces will not be permitted unless otherwise shown on the Drawings, or specified. Exposed fasteners, if permitted by the Mbpt, shall be painted to match the adjoining finish and shall be located as inconspicuously as possible.

F. Protection of Metals Protection against galvanic action shall be provided where dissimilar materials or metalsare in contact. This protection shall be provided by either painting the contact surfaces with two heavy coatings of zinc rich primer in different colors or by application of an appropriate sealant or tape or other approved galvanic isolator. G. Welding –

1. All welding shall be in accord with pertinent recommendations of the American Welding Society and shall be done with electrodes and/or methods recommended by the suppliers of the metals being welded. Type, size and spacing of welds shall be as shown on the approved shop drawings.

2. Welds behind finished surfaces shall be done in such a manner as not to cause distortion "weld telegraphing"

and/or discoloration on the finished side. Weld spatter and welding oxides on finished surfaces will not be permitted.

H. Shop Painting of Carbon Steel Items of carbon steel, unless galvanized after fabrication or scheduled for other finishshall, after completion of fabrication and welding, be thoroughly cleaned of all loose scale, filing, dirt and other foreign matter and shall be painted with two coats of an approved zinc rich primer in two different colors. Surface preparation shall be SSPC-SP6. See section 08900 for additional finish requirements. I. Shop Painting of Aluminum

a) Extrusions - factory paint all exposed metal surfaces in strict accordance with manufacturers recommended application procedures. Use PPG Duracron (or equivalent) paint to standard color selection for all interior applications; use PPG Duranar XL (or equivalent) paint for all exterior applications. Submit color chart.

b) Castings - factory paint all exposed metal surfaces with a powder coat type paint to standard color selection; submit color chart.

Part 3 - Execution 3.1 Examination A. After lines and grades have been established, and before beginning installation in any area, the Contractor shall examine all parts of the structure on which the Work is to be placed in that area. Should any conditions be found which, in his opinion, will prevent the proper execution of his Work, he shall report such conditions in writing to the Contractor and make recommendations as to any necessary corrections. Installation or Work shall not proceed in that area until the Contractor approves proposed installation methods.

3.2 Installation A. Qualification of Workmen All Work shall be performed by skilled workmen, especially trained and experienced in this type of Work. Having certificate from reputed / govt. institute with having good working experience. Welder shall be approved by Engineer in Charge. B. Lines and Grades Bench marks for elevations and building line offset marks for alignment shall beestablished on each floor level by the Contractor, who shall be responsible for their accuracy. Should any error be found in their location, the facade Contractor shall so notify the Contractor in writing, and installation Work shall not proceed in the affected areas until the errors have been corrected. C. Erection Tolerances 1. Contractor Tolerances The following are the tolerances that the Contractor must hold for the building steelframing, supporting the work of the Façade Contractors' scope:

a. All steel work to IS/ BS standards b. Columns 1/8" per foot up to 50' in height, to amaximum of 1" out of plane of the wall and 2" in plane of the wall. c. Beams - +/- ½" from theoretical location all directions d. All Concrete work to IS standards e. Slabs - +/- ½" from theoretical elevations f. All parts of the Work shall be erected, plumb and true, in proper alignment and relation to established

lines and grades, and as shown on approved shop drawings and/or erection drawings. The following are the guidelines for the Facade system Contractor for field erection tolerances:

g. Survey and layout connections to the building within +/- 1/8" fromtheoretical locations. h. Vertical framing members must be plumb to within +/- 1/8" from theoretical position.

Completion of the Work: All welding shall be done by skilled mechanics, certified, qualified orlicensed in accord with local building regulations and shall conform to the recommended practices of the American Welding Society and approved drawing requirements. Welds and adjoining burnt areas shall be thoroughly cleaned and painted with two coats of paint as specified above. Protect glass and other finished surfaces from damage, and prevent causing fires. I. Use of Sealant Materials 1. Application of exterior sealant in moving joints shall not Commence until the Work of this Specification Section has been "topped out" and MbPT has released Work for sealant application. 2. Sealing materials specified in this Specification Section shall be used in strict accordance with the manufacturer's printed instructions and shall be applied only by mechanics trained or experienced in their use. 3. Before applying sealing materials, all mortar, dirt, dust, moisture, protective coatings and other foreign matter shall completely be removed from surfaces it will contact. Comply with manufacturer's instructions for final wiping of surfaces immediately before application of primer and glazing sealants. 4. Adjoining surfaces shall be masked, when required to maintain a clean and neat appearance. Sealant compounds shall be tooled to fill the joint and provide a smooth finish surface. 5. Clean excess sealant from glass and support members immediately after application, using solvents or cleaners recommended by the manufacturers. J. Anchorage Anchorage of the Work to the structure shall be by approved methods in strict accordance with approved shop and/or erection drawings. Supporting brackets shall be so designed as to provide three dimensional adjustment and accurate location of all components. After the unit is properly positioned, all connections so designated on approved shop drawings shall be rigidly fixed by welding or other positive means. K. Glazing

1. Before glazing, the backer structure shall be checkedto see that it is square, plumb and true plane, and within tolerance to install the glass.Perimeter glazing channel clearance shall be sufficient to avoid all point loading. 2. If found otherwise, glazing shall not proceed untilproper corrections are made. Correct glass sizes to insure adequate "glass bite" shall be verified by field measurement. Glass shall be installed in such manner to assure proper "glass bite" at all channels. 3. No glass shall be cut after leaving the factory. 4. Install in accordance with Glazing Manufacturer'srequirements and the shop drawings.+ 5. Employ only experienced glaziers who have had previous experience with materials and

systems being applied. Use tools and equipment recommended by the glass manufacturer. 6. Plate-to-plate joints of glass are sealed with siliconesealant. Joint dimensions shall be maintained to be

compatible with sealant properties and live load movement of the structure. 7. Bolt Torque: Torque bolts to torques specified on shopdrawings using calibrated tool. Lock torqued bolts into

position to prevent back-off. Resetcalibrations regularly to ensure accurate torqueing. 8. Maintain a minimum temperature of 40oF during Glazing unless the manufacturer of the glazing material

specifically agrees in writing to application of this material at lower temperature. If job progress of other conditions require glazing work when temperature is below 40oF (or below the minimum temperature

recommended by the manufacturer), consult the manufacturer and establish in writing the minimum provisions required to ensure satisfactory work.

9. Inspect each unit of glass immediately before installation. Glass which has significant impact damage at edges, scratches or abrasion of faces, or any other evidence of damage shall not be installed.

L. Removal of Debris All debris caused by or incidental to the installation of this Work shall be deposited in trash receptacles provided by the Contractor on a daily basis, as the Work progresses. 3.03 Cleaning

1. Remove from the installed Work all sealant smears or other unsightly marks caused by Contractor's workmen that would not be readily removed by normal final cleaning with mild soap and water.

2. Contractor shall be responsible for any damage or disfigurementof the Work caused by his own personnel. 3. Final cleaning excluded from the scope of this section.

3.04 Inspection The Engineer will inspect the Work. The Contractor shall cooperate with the Engineer personnel and allow unrestricted access to the Work, both in plant and field, and to any scaffolds used in the performance of the Work without requiring any scaffold releases, in order to facilitate such inspection. The Contractor to schedule all required field inspections required by the Contract Documents through the Contractor. The Contractor shall perform all tests that may be required by the inspection personnel as a condition precedent to issuance of the Certificate of Completion.

3.05 Protection 1. Take all necessary means to prevent any damages (scratches, dents, nicked edges etc.) to components during

handling and erection Replace components beyond acceptable field repair at no additional cost . Special protection tape of 70 microns shall be applied on to the profiles. The tape glue should not get transferred on to the profile

2. Surface or react with the finish till hand over time. Sample of the final finish of profile and protection tape shall be submitted for approval before production start.

3. Protect glass surfaces by protection sheet. Do not apply markers of any kind to glass surfaces. 4. Remove and replace glass which is broken, chipped, cracked, abraded or damaged in any manner as a result

of construction activities, natural cause’s accidents or vandalism. Replace with new material at no additional cost .

5. Maintain glass in a clean condition at all times, including during construction to prevent glass damage from corrosive action from the elements and contributing side-effects (by wash off) to the components and other work.

TENSILE FABRIC STRUCTURES

PART 1 – GENERAL

1.1 RELATED DOCUMENTS Drawings and general provisions of the Contract, including general and Supplementary Conditions and Division Specification Sections, apply to this Section. 1.2 DEFINITIONS Tensioned Fabric Structure: Cable and/or frame supported tensioned membrane-covered fabric structure; incorporating a fabric with low elongation characteristics under tension and capable of an anticlastic configuration. Fabric structures in which fabric is applied as flat or mono-axially curved configurations are not acceptable. 1.3 SUMMARY A. Section Includes:

1. Section includes a tensioned fabric system as shown on Drawings and specified in this Section. 2. Engineers drawings indicate design intent with respect to sizes, shapes, and

configurations of the tensioned fabric. Provide all components and accessories required for complete tensioned fabric system, whether or not specifically shown or specified.

3. The tensioned fabric structure will assume bolted/pinned connections for field assembly. No field welding will be permitted.

B. The contractor shall be responsible for tensioned fabric structure structural design, detailing, fabrication, supply, and installation of the Work specified herein. The intent of this specification is to establish in the first instance an undivided, single-source responsibility of the contractor for all of the foregoing functions.

C. Contractor’s Work shall include the structural design, supply, fabrication, shipment, and Erection of the following items-

1. The architectural membrane as 2. Indicated on the drawings and in these specifications. 3. Cables and fittings. 4. Perimeter, catenary, and sectionalized aluminum clamping system. 5. Structural steel, including masts, trusses, struts, and beams as indicated on the drawings 6. Fasteners and gaskets. 7. If Contractor appoints any Subcontractor, The sub-contractor should demonstrate’ experience in the design,

fabrication and installation of permanent PTFE fabric structures.. 1.4 REFERENCES A. General: Except as otherwise shown or noted, all work shall comply with the requirements of the following codes and standards: 1. American Institute of Steel Construction (AISC).

a) Specifications for the Design, Fabrication, and Erection of Structural Steel for Buildings. b) Code of Standard Practice for Steel Buildings and Bridges. c) Specification for Structural Steel Buildings – Allowable Stress Design and Plastic Design. d) Specification for Allowable Stress Design of Single-angle Members. e) Seismic Provisions for Structural Steel Buildings.

2. American Society of Testing and Materials (ASTM).

a. ASTM A586: Standard Specifications for Zinc-Coated Steel Structural Strand. b. ASTM A603: Standard Specifications for Zinc-Coated Steel Structural Wire Rope. c. ASTM D4851-88: Standard Test Methods for Coated and Laminated Fabrics for Architectural Use. d. ASTM E84: Standard Test Method for Surface Burning Characteristics of Building Materials. e. ASTM E108: Standard Test Methods for Fire Test and Roof Coverings. f. IS 875 : Indian Wind Code 2) BS 8118: Structural Use of Aluminum 3) g. AS 1441: Method of Test for Coated Fabrics 4) AS 1530: Methods for Fire Tests on Building Materials, Components and Structures h. AS 2001: Methods of Test for Textiles

1.5 SYSTEM REQUIREMENTS

A. General: Provide a tensioned fabric structure system that complies with requirements specified herein by testing the contractor’s corresponding membrane system in accordance with the indicated test methods.

B. Building Code Criteria: The tensioned fabric structure shall comply with the International Building Code. National Building Code , IS Codes.

C. Comply with local building codes and respective loading criteria for Snow Loads, Live Loads Dead Loads, Wind Speed, and Seismic Loads.

D. Life Safety: Tensioned fabric structure shall be detailed so that no life safety issue is created in the event of a loss of a part of the membrane. The tensioned fabric structure shall not rely on the membrane for structural stability.

1.6 ACTION SUBMITTALS A. Product Data: For each type of product.

1. Include styles, material descriptions, construction details, fabrication details, dimensions of individual components and profiles, hardware, fittings, mounting accessories, features, and finishes for tensioned fabric structures.

2. Include rated capacities, light transmissions, and operating characteristics of furnished specialties and accessories.

B. LEED Submittals: 1. Product Data for Credit MR 4: For products having recycled content, documentation indicating

percentages by weight of postconsumer and pre-consumer recycled content. Include statement indicating cost for each product having recycled content.

2. Product Certificates for Credit MR 5.1 [and Credit MR 5.2]: For products and material required to comply with requirements for regionally manufactured materials. Include statement indicating cost for each regionally manufactured material.

3. Include statement indicating location of manufacturer and distance to Project for each regionally manufactured material.

C. Design Drawings:

1. Include plans, elevations, sections, mounting heights, and frame assembly details. 2. Preliminary member sizes with wall thickness TBD. 3. Preliminary layout and connection detailing design with final module- TBD. 4. Show intended fabric attachment hardware and details. 5. Identify direction, details and locations of fabric seams. 6. Show details of fabric membrane dimensions including length of spans, sag in curvature and actual

shaded area.

D. Engineered Drawings (submit after Design Drawings have been approved):

1. Calculations . 2. Engineering Drawings 3. Include plans, elevations, sections, mounting heights, and frame assembly details. 4. Provide frame member sizes and required wall thicknesses. 5. Identify all welding requirements. 6. Detail all bolted and/or pin connections for frame assembly. 7. Identify required sizes of bolts, pins, plates and tubing. 8. Verify the fabric meets minimum engineering requirements. 9. Detail fabric attachment methods and identify thickness of all membrane plates, clamps and other

attachment components. 10. Call out all cable sizes and pretension requirements. 11. Submit anchor-bolt plans before foundation work begins. Include location, diameter, and projection of

anchor bolts required to attach the tensioned fabric structures to foundation. Indicate column reactions at each location.

E. Samples for Initial Selection: Electronic file of available frame finish colors. F. Samples for Verification: For the following:

1. Fabric: Qty. (4) 200mm x 300mm samples of fabric as selected by the Engineer. 2. Frame Finish: Qty. (4) Sample chips, not less than 50x75mm in size.

G. Provide a Schedule of Values within a weeks of project award. 1.7 INFORMATIONAL SUBMITTALS

a) Qualification Data: For Installer, fabricator and professional engineer. b) Welding certificates. c) Sample Warranty: For fabric warranty.

1.8 CLOSEOUT SUBMITTALS Maintenance Data: For tensioned fabric structures to include in operation and maintenance manuals. Include the following:

1. Methods for maintaining tensioned fabric structure fabrics and finishes. 2. Precautions about cleaning materials and methods that could be detrimental to fabrics,

finishes, and performance. 1.9 QUALITY ASSURANCE A. Fabricator Qualifications: Shop that employs skilled workers who custom-fabricate tensioned fabric structures similar to those required for this Project and whose products have a record of successful in-service performance.

1. Fabricator is a Master Fabric Craftsman certified by the Industrial Fabrics Association International.

2. Fabricator’s responsibilities include fabricating and installing tensioned fabric structures and providing professional engineering services needed to assume engineering responsibility.

3. Fabricator’s engineering services must utilize Finite Element Analysis software that performs fabric form finding and takes into account fabric material properties and pre- stress characteristics.

4. Fabricator must have proven record of at least (5) successful projects of similar size and similar specified fabric material.

5. Fabricator must have been in continuous operation as a professional tensioned fabric structure manufacturer for minimum of (10) years prior to contract.

6. Fabricator must have an in-house Made-in-America manufacturing facility for both frame and fabric membrane components.

A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit installation of tensioned fabric structure in exterior locations to be performed according to manufacturers’ written instructions and warranty requirements. B. Field Measurements: Where tensioned fabric structure installation is indicated to fit to other work, verify dimensions of other work by field measurements before fabrication and indicate measurements on Drawings. Allow clearances for fenestration operation throughout the entire operating range. Notify Engineers of discrepancies. Coordinate fabrication schedule with construction progress to avoid delaying the Work. 1.10 WARRANTY A. Special Warranty: Contractor agree to repair or replace components of tensioned fabric structures that fail in materials or workmanship within specified warranty period of one year from the date of Substantial Completion. 1. Failures include, but are not limited to, the following:

a. Structural failures including framework. b. Deterioration of fabric including seam failure. c. Deterioration of metals, metal finishes, and other materials beyond normal weathering.

2. Warranty Period, Fabric: Reference the manufacturer’s limited warranty for the specified fabric manufacturer and product. 3. Warranty Period, Cables, Securement Devices and Accessories: One year from date of Substantial Completion

PART 2 – PRODUCTS 2.1 MANUFACTURERS Basis-of-Design: Subject to compliance with requirements, provide the tensioned fabric structures designed, engineered, fabricated and installed by the approved manufacturer. Installer must meet all minimum requirements. 2.2 PERFORMANCE REQUIREMENTS A. Regulatory Requirements: Provide tensioned fabric system complying with requirements and limitations of authorities having jurisdiction that are within Contractor’s control. B. Delegated Design: Engage a qualified professional engineer to design tensioned fabric system. Delegated design engineering requirements include, but are not limited to, the following:

1. Prepare structural design drawings defining the precise interface geometry determination, reaction loads imposed on structural steel framing, anchoring loads, connection details, interfaces and seam layouts.

2. Structural calculations for the tensioned fabric system shall include: a. Large deflection numerical shape generation that will insure a stable, uniformly stressed,

three dimensionally curved shape that is in static equilibrium with the internal pre-stress forces and is suitable to resist all applied loads.

b. Large deflection finite element method structural analysis of the membrane system under all applicable wind and seismic loads.

c. Connection design including bolt, weld and ancillary member sizing d. Biaxial fabric test specification, interpretation and fabric compensation determination. e. Accurate generation of the two dimensional compensated fabric templates required to

generate the three dimensional equilibrium shape. C. In engineering tensioned fabric system fittings and accessories to withstand structural loads indicated, determine allowable design working stresses of railing materials. D. Structural Performance: Tensioned fabric system shall withstand the effects of gravity loads and the following loads and stresses within limits and under conditions indicated according to IS/International codes -

1. Wind Loads: To be determined by Engineer. 2. Live Loads: To be determined by Engineer. 3. Snow/other Loads: To be determined by Engineer. 4. Seismic Loads: To be determined by Engineer.

E. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes. 1. Temperature Change: 120 deg F, ambient; 180 deg F, material surfaces. G. Control of Corrosion: Prevent galvanic action and other forms of corrosion by insulating metals and other materials from direct contact with incompatible materials. 2.3 FABRIC A. Product: Subject to compliance with requirements, provide fabric as called out and specified by the Engineer. B. Fire-Test-Response Characteristics: Provide fabric with the fire-test-response characteristics indicated, as determined by testing identical products according to test method indicated below by UL or another testing and inspecting agency acceptable to authorities having jurisdiction: 1. Flame-Resistance Ratings: Passes NFPA 701. Fabric manufacturer: The following is a list of approved fabric manufacturers for tensioned fabric structures.

Saint Gobain Ferrari Textiles SEFAR Interglass Seaman Corporation Mehlar D. Fabric properties: 1. Fabric thickness and tensile strength: Must meet engineering requirements with a safetyfactor of 5. 2. Color: White/ Cream / Beige or as per Engineer choice. 3. Other properties -

I. Breaking strength (DIN 53354 using 100mm samples) II. Warp >8540 N/5cm

III. Fill > 7885 N/5cm IV. Tear resistance (DIN 53363) V. Warp >420 N Fill > 530 N

VI. Translucency: 8-11% at 550 nm VII. Maximum bias: 1.0° Maximum bowing: 2%

VIII. Coated Weight (DIN 53352): 1540 g/m² +/- 10% IX. Burning Characteristics Flame Spread (ASTM E84 Tunnel Test): 5 max X. Smoke Generation (ASTM E84 Tunnel Test): 5 max

XI. Incombustibility of Substrates (ASTM E136): Pass Fire Resistance of Roof Coverings XII. Burning Brand (ASTM E108): Class A

XIII. Flame Resistance (NFPA 701, small scale): XIV. Pass Support cloth (DIN 60001): EC3 XV. Colour: As per Engineer intent (after exposure to sunlight) selection from available

catalogue.

5. Physical Characteristics:

The following indicates a range of physical properties typical of Architectural Membranes. The determination of

specific characteristics and selection of a membrane shall be derived from project engineering by the Project

Engineer

a. Coated Fabric Weight (oz./sq. yd.): 24 min. to 45.5 nom. (ASTM 4851)

b. Thickness (mils): 18 min. to 36 nom. (ASTM 4851)

c. Strip Tensile (lbs./in., avg.):

Dry, Warp 520 min. to 975 min. avg. (ASTM 4851)

Dry, Fill 380 min. to 900 min. avg. (ASTM 4851)

d. Strip Tensile, After Crease Fold (lbs./in., avg.):

1. Dry, Warp 375 min. to 760 min. avg. (ASTM 4851)

2. Dry, Fill 350 min. to 735 min. avg. (ASTM 4851)

e. Trapezoidal Tear (lbs./in., avg.):

1. Warp 35 min. to 95 min. avg. (ASTM 4851)

2. Fill 35 min. to 120 min. avg. (ASTM 4851)

f. Solar Transmission (%): 7 to 22 nom. (ASTM E424)

g. Solar Reflectance (%): 70 to 73 nom. (ASTM E424)

E CABLES AND END FITTINGS

A. Materials.

1. All structural wire rope cables shall conform to the latest revision of ASTM A603.

2. All structural strand cables shall conform to the latest revision of ASTM A586.

3. All cables shall be coated to “Class A” zinc coating throughout.

4. All cables in contact with the membrane shall be white PVC coated. All other cables

F. Steel and Iron: 1. Tubing: ASTM A 500 (cold formed) or ASTM A 513. 2. Bars: Hot-rolled, carbon steel complying with ASTM A 29/A 29M, Grade 1010. 3. Plates, Shapes, and Bars: ASTM A 36 or ASTM A 572 per engineering requirements.

E. Stainless Steel (when applicable);

1. Tubing: ASTM A 554, Grade MT 316L. 2. Pipe: ASTM A 312/A 312M, Grade TP 316L. 3. Castings: ASTM A 743/A 743M, Grade CF 8M or CF 3M. 4. Sheet, Strip, Plate, and Flat Bar: ASTM A 666, Type 316L. 5. Bars and Shapes: ASTM A 276, Type 316L.

F. Aluminum (when applicable):

1. Provide alloy and temper recommended by aluminum producer and finisher for type of useand finish indicated, and with strength and durability properties for each aluminum formrequired not less than that of alloy and temper designated below.

2. Extruded Bars and Shapes: ASTM B 221, Alloy 6063-T5/T52. G. Cables and Fittings shall be constructed of galvanized steel unless otherwise specified by theEngineer in the bid drawings:

1. All cables in contact with PTFE fabric shall be PVC coated. 2. Any cable in contact with HDPE fabric shall never have PVC coating. 3. Galvanized Cables:

a. Cable: Galvanized steel structural wire rope made from wire complying withASTM A 603. b. Cable Fittings: Connectors of types indicated or required, fabricated from hot dipgalvanized

steel, and with capability to sustain, without failure, a load equal to minimum breaking strength of cable with which they are used.

5. Stainless Steel Cables:

a. Cable: Wire rope made from wire complying with ASTM A 492, Type 316. b. Cable Fittings: Connectors of types indicated or required, fabricated from stainless steel, and with

capability to sustain, without failure, a load equal to minimum breaking strength of cable with which they are used.

H. Metal Battens for Securing Fabric to Structural Steel Frame: Extruded aluminum. I. Frame Finish shall be polyester powder painted unless otherwise specified by the Engineer in the bid drawings. 1. Powder Coat Finish:

a. Commercial blast clean surface in accordance to SSPC-SP 10. b. Apply polyester powder coat paint to a minimum of 3 mils thick.

c. Color: As selected from manufacturer’s available stock colors.

2. Paint Finish for marine or other corrosive environments: a. Commercial blast clean surface in accordance to SSPC-SP 10. b. Primer Material properties – (1) coat of PPG/Ameron’s Dimecoat 9 at 2.5-4.0 mils MDFT. c. Paint Material properties – (2) coats of PPG/Ameron’s PSX 700 at 3.0-7.0 mil MDFT per

coat. d. Minimum thickness – 8.5-18 mils TDFT. e. Color: As selected from manufacturer’s available stock colors.

3. Galvanizing (only if Engineer indicates requirement on bid drawings): a. Comply with either ASTM A 123/A 123M or ASTM A 153/A 153M for hot-dip Galvanizing, as

applicable. b. Fill vent and drain holes that are exposed in the finished Work, unless indicated to Remain as weep

holes, by plugging with zinc solder and filing off smooth.

PART 3 – EXECUTION 3.1 EXAMINATION Examine structural steel framing and other substrates, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of the Work. Prepare written report, endorsed by Installer, listing conditions detrimental to performance. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 FIELD QUALITY CONTROL Manufacturer’s Field Service: Engage a factory-authorized service representative to test and inspect components, assemblies, and equipment installations, including connections. Prepare test and inspection reports. 3.3 ERECTION Proceed with installation of tensioned fabric structure only when existing and forecasted weather conditions will permit work to be performed in accordance with manufacturer’s recommendations. Erect frame and fabric in accordance with the procedures of the approved manufacturer. Adequate pre-stress shall be applied to eliminate fabric wrinkles and excess cable sag. 3.4 ADJUSTING Occupancy Adjustments: When requested within 12 months from date of Substantial Completion, provide on-site assistance in adjusting system to suit actual occupied conditions. Provide up to one visit to Project during other-than-normal occupancy hours for this purpose. 3.5 DEMONSTRATION Engage a factory-authorized service representative to train Mbpt’s maintenance personnel to adjust cable and fabric tension and to clean and maintain fabric.

GLASS FIBER REINFORCED CONCRETE

Glass fiber Reinforced Concrete (Sometime called Glass Reinforced Concrete.) is a mixture of cement, fine aggregate, water, chemical admixtures and Alkali resistant Glass fibers There are numbers of different manufacturing process: the most common are Hands Spray and Pre-mix, Glass fiber reinforced Concrete (GRC ) is a material which today is making a significant contribution to the economics, to the technology and to the aesthetics of the construction industries worldwide. This environment friendly composite , with its look consumption of energy and natural raw material is being forming to a great variety of product and has won firm friends among designers, engineers and end users for its flexible ability to meet performance, appetence and cost parameter. Since its introduction in 1969 , GRC has matured and today’s designers has available to him depending up on his performance requirement, a range of matrix modifier such as acrylic polymer, rapid set cement and additives to improve the long term stability of the material. Extensive independent tests and performance data are available on all aspect of matrix formulation. The Alkali Resistant Glass fiber is generally used at the 3-5 % level in the manufacture of factory finish pre fabricated product either by the spray process or using traditional concrete casting method. It is also used in the 1 – 2 % range for reinforced renders as a site applied mix and can also be used to control plastic shrinkage cracking, micro cracking and bleeding in site –cast concrete 1. Work Included

a. GFRC panel fabrication shall include all labor, materials, equipment, and related services necessary to manufacture the panels as indicated and described by the contract documents.

b. GFRC panel erection shall include all labor, materials, equipment, and related services necessary for the erection of the panels as indicated and described by the contract documents.

c. The GFRC manufacturer shall furnish all GFRC-embedded hardware; he shall furnish all loose connection hardware, unless specified elsewhere. The placement of the hardware in cast-in-place concrete will be the responsibility of that contractor placing the cast-in-place concrete.

d. Furnishing and attaching all hardware required to be placed in the cast-in-place concrete or attached to the structure for the connection of the GFRC panels shall be clearly specified.

e. Responsibility for the design and detailing of hardware attached to or cast into the support structure, as well as layouts for placement, should be specified.

B. Related Work Specified Elsewhere

a. Cast-in-Place Concrete - Placement of anchorage devices in cast-in-place concrete for GFRC panels. b. Precast floor and roof slabs, beams, columns, and other structural elements. c. Steel supporting structure and loose anchors, if applicable. d. Miscellaneous iron, anchor bolts or other anchorage devices required for installing GFRC panels. e. For exposed face of panels, responsibility should be specified if applicable. Generally done by the panel

manufacturer. f. Insulation applied to GFRC panels. g. Counterflashing inserts and receivers, unless included in this section. h. Sealing joints between panels, or caulking between panels and other materials. i. Field touch-up painting of metal parts. Delete when specified in this section.

C. Design Responsibility GFRC panels shall be designed under the supervision of a registered professional engineer employed or retained by the manufacturer. QUALITY ASSURANCE - A, Acceptable Manufacturers

a. Manufacturer with a demonstrated capability to produce GFRC products of the quality and scope required on this project, and with a GFRC industry involvement of at least 10 years. Experience required is a minimum of 2 to 5 years. The manufacture of CFRC requires a greater degree of craftsmanship than most other concrete products, and therefore requires prequalification of the manufacturer. Plant certification, as provided in the Plant Certification Program, is satisfactory evidence. Or as approved by Engineer in charge

b. When requested by the Engineer, the manufacturer shall submit written evidence of having experienced personnel, physical facilities, established quality control procedures, and a management capability sufficient to produce the required units without causing delay of the project.

B. Erector Qualifications a. Regularly engaged for erection of GFRC or architectural precast concrete panels similar to those required on

this project, and the present erection management capability sufficient to erect the required units without causing delay of the project.

C. Job Mock-Up

a. After standard samples are accepted for color and texture, produce full-scale unit meeting design requirements. Full scale samples or inspection of the first production unit are sometimes desired, but the effect of this requirement on scheduling must be considered. When a new design concept or new manufacturing process or other unusual circumstance indicates that proper evaluation cannot otherwise be made a mock-up may be justified.

b. Mock-up to be the standard of quality for GFRC panel work, when accepted by Engineer. Use to determine

range of acceptability with respect to color and texture variations, surface defects and overall appearance. It is difficult to assess appearance from small samples.

c. Incorporate mock-up into work in location reviewed by Engineer after keeping unit in plant for checking

purpose. D Submittals

a. Prior to commencement of manufacture, submit samples representative of finished exposed face showing typical range of color and texture. If the back face of a GFRC unit is to be exposed, samples of the workmanship, color and texture of the hacking should heron as well as the facing.

b. Sample Size: Approximately 12 in. x 12 in. (3.05 x 3.05 m) and of appropriate thickness, representative of the proposed finished product.

E Drawings

1. Production drawings, except for shape drawings, are not usually submitted for approval, except in special cases where the Engineer or Contractor agrees to assume responsibility. However, record copies are frequently requested. Guidelines for the preparation of drawings are given in the "PC! Architectural Precast Concrete Drafting Handbook.

2. The Manufacturer shall submit for approval complete erection drawings showing:

a. Unit shapes (elevations and sections) and dimensions. b. Finishes. c. Joint/connection details. d. Lifting/erection inserts. e. Location and details of hardware attached to structure. F. Other items sprayed in panels. g. Handling procedures. h. Sequence of erection for special conditions. i. Relationship to adjacent material. j. Description of all loose, cast-in, and field hardware

3. Shop drawings shall be submitted in one copy sepia set. 4. Show location of units on shop drawings by same identification marks placed on panels. 5. The manufacturer shall not proceed with fabrication of any products prior to receiving approval of erection

drawings by the Engineer. Shop drawing approval by Engineer means that the Engineer has reviewed the shop drawings for general or design compliance with Contract Documents. Design approval by the Engineer means that the Engineer has reviewed the design of the panel.

F Test Reports

a. Submit on request, copies of test reports. Schedule of required tests is included in Section 1.02G. Number of copies of test reports, and how reports should be distributed are included in Testing Laboratory Services, Section.

G. Design Calculations

a. Submit entire design calculation in line with all relevant Indian and international codes. Submission of calculation is necessary.

H Material – 1 Glass Fiber Reinforced Concrete - Glass Fiber Reinforced Concrete (GRC) is generally manufactured by either “Spray “or the “Pre Mix” vibrator casting process. The process chosen is normally dictated by factor such as strength requirement, size of mold, design of elements. As a general rules, larger items, such as building cladding panels are normally “Sprayed” whereas small item are manufactured from “Pre Mix” process.

A. SPRAYED GRC PROCESS 1. The water and admixtures ( and polymer if used ) are placed in a “ High Shear Mixture” and the sand/ cement

are slowly added until smooth creamy slurry is achieved. The consistency of the slurry can be checked using a simple slump test kit. Mixing time is about 1 – 2 minutes.

2. When ready the mix is transferred to a “Pump / Spray Unit” . The Pump conveys the slurry at a regulated rate of

flow to the spray gun. At the spray gun fiber , in the form of a roving is chopped to a length of 25 – 32 mm and added to the slurry. The two materials are projected on to the mold surface using controlled air pressure from air compressor.

3. The GRC material is s prayed and built up in thin layers until the required thickness is achieved normally 10 –

15 mm . Simple hand roller is used to compact the material in layers.

4. The product is left in mould and covered with polythene to prevent moisture loss until 8 hrs. The product is then demolded.

5. After demoulding the GRC element is either cover with polythene or water cure for approximately 4 days.

Alternately if polymer curing compound is used in mix then GRC element is can be exposed to the atmosphere immediately , although it is advisable to keep them from direct sunlight or sever conditions for day or two.

B. PRE-MIX GRC PROCESS

1. The Sand and Cement are mixed dry and then the water/admixture and polymer ( If used ) are added, Generally Slow speed slurry / fiber blender mixer is used. With this type of mixer the fast speed is design to create smooth creamy slurry. This takes about 1 to 2 minutes The mixture is then switch to slow speed and fiber in the form of chopped strand (length approx. 20 mm ) is added slowly. The fiber is blended in to the mix for an approximately 1 minute.

2. Once the mix is ready , it is pour in to mould which are vibrated using vibrating table.

3. The product is left in mould to set and covered with polythene sheet to prevent moisture loss. The product is

de mould next day.

4. After de molding the product are cured under polythene sheet to maintain moist condition for approximately 4 days. Alternatively a polymer curing compound can be used as describe for the sprayed process.

2 FIBER

1. Alkali Resistant Glass fiber for used in cement based System

2. AR fibers are made by the continuous filament process. Molten glass is fed through a platinum (bushing ) which

contain very large numbers of small holes ( tips ). The molten glass is pulling through bushing as a continuous fiber. It is passes through the fine water mist and is then pass over roller that applies an organic processing: The fibers are then wound on to a former to make a cake. This cake is then put through a time / temperature regime to cure the size. The cake are then either wound together to form a roving ( or cheese ) or put through a chopping unit to cut the fiber to required length ( Chopped / strand )

3. The selection of the type and amount of size used apex the end fiber product in term of stiffness, resistance to

abrasion and can have other effect. The diameter is uniform with little variation. The alkali resistance is confirmed by the composition of glass itself and not on a protective coating.

4. The description of continuous filament glass fiber are usually as follows

1. Filament A single fiber 2 Diameter CF Glass fiber have a uniform cylindrical cross section normally between 10 –20 micron 3 Strand A no of filament bonded together by the size 4. StrandTex The weight (linerdensity) of the strand express In gm/Km . Typically commercial product has a strand Tex in the region of 20 – 100 5. Chopped A length of strand cut a particular length. Usually these are in the range of 3 – 25 mm these Chopped strands are used in GRC Pre mix process and to renders and concrete to provide Toughness and suppress cracking. 6 Roving An assembly of CF fiber wound together to create a self-supporting product. Roving are used in GRC Spray process and continuous reinforcement 7 End Count The no of strand collected together to form a roving 8 Roving Tex The weight (Linear density) of the roving express in gm / Km. For e.g. if a roving has 32 ends of strand each having a strand tex of 76.5 the roving tex would be 32 x 76.5 = 2450.

3 Fine aggregates Fine aggregate or sand shall be washed and dried to remove soluble matter and permit accurate control of the water/cement ratio. The particle shape should be round or irregular and should have a smooth surface without honeycombing. For spray GRC, the maximum particle size shall be 1.2mm; for premix GRC, the maximum particle size shall be 2.4mm. In both cases the fine fraction, i.e. sand passing a 150 micron sieve, shall be less than 10% of the total weight of sand. Silica sands are widely used and should conform to the specification in Table 1. Sands with a higher moisture content may be used provided the moisture content is known and the mix design is altered accordingly. Sands other than silica sands may be used but the producer should provide evidence of their suitability. Soft building sands must not be used 4 Admixtures Admixtures are permitted and their use is encouraged as they can enhance the properties of GRC. They should always be used strictly in accordance with the suppliers' recommendations and the producer must ensure that their use has no adverse effect on the product. Calcium chloride-based admixtures must not be used if the GRC component contains steel reinforcement, fixing sockets or other cast-in devices. 5 Pigments Powder pigments or dispersions may be used to produce colored GRC. The pigments should conform to international or national standards. The purchaser should recognize that colour variation may occur and must agree an acceptable range of variation with the producer. 6 Other component materials Other component materials (e.g. silica fume, metakaolin, fly ash, reinforcing fillers, admixtures, meshes), may be added to modify the properties of the mix. They must be used in accordance with the supplier's instruction and the producer must demonstrate that their use will not adversely affect the properties of the GRC TYPICAL PROPETIES OF GRC ( AT 28 DAYS )

Properties Spray method Pre mix method Glass fiber % by wt 5 3 Bending Ultimate Strength ( MOR ) Mpa 20 – 30 10 – 14 Elastic Limit (LOR) Mpa 7 – 11 5 – 8 Tensile Ultimate strength (UTS) Mpa 8 – 11 4 – 7 Elastic limit Mpa 5 – 7 4 – 6 Shear Interlaminer Strength Mpa 3 – 5 N /A In planer strength Mpa 8 – 11 4 – 7 Compressive Strength Mpa 50 – 80 40 – 60 Impact Strength Kg/ M2 10 – 25 10 – 15 Modules of Elasticity GPa 10 – 20 10 – 20 Strain of failure % 0.6 – 1.2 0.1 – 0.2 Dry Density T / M3 1.9 – 2.1 1.8 – 2.0

I FABRICATION 1. Proportioning and Mixing

I. All measurements of mix constituents shall be carried out in a careful manner to achieve the desired mix proportions.

II. The glass fiber and cement slurry shall be metered to the spray head at rates to achieve the desired mix proportion and glass content.

III. These shall be checked in accordance with standard procedures described in "Recommended Practice for

Glass Fiber Reinforced Concrete”.

IV. Cleanliness of equipment and working procedures shall be maintained at all times.

2. Hand Spray Application These requirements apply to hand spray only. Some shapes or products lend themselves to machine spray (possibly with vacuum compaction and dewatering) which would require changes to these specifications.-

I. Spray operators shall be trained personnel. II. A mist coat consisting of the matrix without fiber may if necessary be sprayed onto the form. The thickness of

this coating shall generally not exceed 1/32 in. (0.79 mm) in order to avoid an unreinforced surface. III. Spray-up of the main body of material shall proceed before any mist coat has set. IV. Application shall be by spraying such that uniform thickness and distribution of glass fiber and cement matrix

is achieved during the application process. V. Consolidation shall he by rolling or such other techniques as necessary to achieve complete encapsulation of

fibers arid compaction. VI. Control of thickness shall be achieved by using a pin gauge or other approved method.

3 Cover Provide embedded anchors, inserts, and other sprayed in items with sufficient anchorage and embedment for design requirements. 4 Curing

I. Immediately after the completion of spraying of the panel, a curing method shall be used to ensure sufficient strength for removing the units from the form.

II. After initial curing, remove panel from form and place in a controlled curing environment. Panels shall be kept

continuously wet for a minimum of 7 days in accordance with manufacturer's standard curing practice. The temperature shall be maintained between 60 F and 110 F (16 C and 43 C) during this period. Curing less than 7 days, temperature below 60 F, or atmosphere less than 95 percent relative humidity will reduce the material property values and hence design strengths. Accelerated curing with temperatures above 110 F (43 C) maybe detrimental to strength.

J EXECUTION

1 PRODUCT DELIVERY, STORAGE AND HANDLING A. Delivery and Handling

I. Handle and transport units in a position consistent with their shape and design in order to avoid excessive stresses or damage. Panels shall be handled and transported so that panels are not subject to undue stress. If panels are "nested" or stacked vertically, consideration must be given to transfer of vertical load in order to prevent progressive crushing or other damage.

II. Lift or support units only at the points shown on the erection shop drawings. III. Place no staining resilient spacers of even thickness between units. IV. Support units during shipment on no staining shock absorbing material. V. Protect units from dirt and damage during handling and transport.

B. Storage at Jobsite I. Store units to protect them from contact with soil, staining, and from physical darnage. Units should never be

placed directly on ground. II. Store units, unless otherwise specified, with no staining, resilient supports located in same positions as when

Transported. III. Store units on firm, level, and smooth surfaces. IV. Place stored units so that identification marks are easily readable.

2 PRE-INSTALLATION RESPONSIBILITY A. Contractor's Responsibility

I. The Contractor shall provide building lines, center and grades in sufficient detail to allow installation of the GFRC units.

II. The Contractor shall provide true, level bearing surfaces. Construction tolerances for cast-in-place concrete, steel, masonry etc., should be specified in applicable sections of the specifications.

III. The Contractor shall provide for the accurate placement and alignment of anchor bolts, plates or dowels on the structure.

3 Fastening

I. Fasten GFRC units in place by bolting or welding or both as shown on approved erection drawings. Fastening detail should provide sufficient three-directional allowance to accommodate creep, thermal and moisture-induced panel movement, field tolerances, and dimensional changes in the structural frame of the building. Slotted and/or oversize holes in connections and attachments, or the use of special fasteners are the usual means to accommodate the above. Usually, panels are fixed at one point while the other connections have freedom to move.

II. Field welding shall be done by qualified welders using equipment and materials compatible to the base

material. Field welds should be avoided if possible or kept to a minimum. When field welding is required, the erector shall protect units from damage caused by field welding or cutting operations and provide non-combustibleshields as necessary during these operations.

4 Tolerances of Erected Units Tolerances for location of GFRC units shall be non-cumulative and as listed below. For erection tolerances not listed below, those given in PCI MNL 117, "Manual for Quality Control for Plants and Production of Architectural Precast Concrete Products," shall apply.

I. Face Width of Joint: Panel dimension 10 ft (3.05 m) or less ±^/ls in. (4.77 mm) Panel dimension 10 to 20 ft (3.05 to 6.10 m) +''ls in. – 14 in. (4.77 mm, 6.35 mm) Panel dimension greater than 20 ft (6.10 m) + 1/4in. —^/is in. (6.35 mm, 7.95 mm)

II. Warpage: Maximum permissible warpage of one corner out of the plane of the other three shall be fha in, per

ft (5.2 mmlm) distance from the nearest adjacent corner, or 1I8 in. (3.18 mm) total after installation.

III. Bowing: Not over L/360, A. where L is the panel length.

K Reference Codes & Guide

GRCA “Methods of Testing Glassfibre Reinforced Concrete (GRC) Material” GRCA “Specifiers Guide to Glassfibre Reinforced Concrete” GRCA “Assessment of GRC Test Results” GRCA “Approved Manufacturer Scheme (AMS). European Standards

a. BS EN 1169: 1999: Precast concrete products — General rules for factory production control of glass-fibre reinforced cement products.

b. BS EN 1170: 1998: Parts 1-8 Precast concrete products: Test methods for glass-fibre reinforced cement.

i. Part 1. Measuring the plasticity of the mortar— 'Slump test' method. ii. Part 2. Measuring the fibre content in fresh GRC, Wash out test'. iii. Part 3. Measuring the fibre content of sprayed GRC. iv. Part 4. Measuring bending strength — 'Simplified bending test' method. v. Part 5. Measuring bending strength — 'Complete bending test' method. vi. Part 6. Determination of the absorption of water by immersion and determination the

dry density vii. Part 7. Measurement of extremes of dimensional variations due to moisture content. viii. Part 8. Cyclic weathering type test

c. BS EN 14649: 2005 Precast concrete products — Test method for strength retention of glass

fibres in cement and concrete (SIC TEST).

d. BS EN 15422: 2008 Precast Concrete Products - Specification of glassfibres for reinforcement of mortars and concretes.

e. BS EN 1169: 1999. Precast concrete products – General rules for factory production control of

glassfibre reinforced cement. ASTM

a) C948 Standard Test Method for Wet Bulk Density, Water Absorption and Apparent

Porosity of Thin Section Glass Fiber Reinforced Concrete.

b) C1229 Standard Practice for Preparing Coupons for Flexural and Washout Test for

Glass Fiber Reinforced Concrete.

c) C1229 Standard Test Method for Determination of Glass Fiber Content in Glass

Fiber Reinforced Concrete

d) C1230 Standard Test Method for Performing Tension Tests on Glass Fiber

Reinforced Concrete [GFRC] Bonding Pads

e) C1560 Standard Test Method for Hot Water Accelerated Aging of Glass Fiber

Reinforced Concrete

END OF SECTION