CONTENTS

1. PURPOSE

2. DEFANITIONS

3. APPROVED MATERIALS AND AREA OF APPLICATION

4. RESPONSIBLITIESA. PERSONAL PROTECTIVE EQUIPMETNSB. SAFETY ARRANGEMENTS

5. PRELIMINARY DETAILS

6. WORKING METHODA. CONCRETE RUSH COAT- CRCB. DECORATIVE PLASTER SCRATCH COAT- SCP (M)

7. APPENDIX

A. MANUFACTURERS RECOMMENDATIONS (MSDS AND THE TECHNICAL DATA OF THE MATERIAL) ARE ENCLOSED IN THS SUBMITTAL

1 PURPOSE

Purpose of this document is to clearly explain the procedure of application of external plaster – decorative plaster in external façade of the building as specified in the scope statement

2 DEFANITIONS

CLIENT : PRIVATE ENGINEERING OFFICE CONSULTANT : MS DAR AL HANDASA CONTRACTOR : MS AL BALAGH TRADING AND CONTRACTING

CO WLL

3 APPROVED MATERIAL AND AREAS OF APPLICATION

Material approved for the purpose is CON MIX - PRE MIX PLASTER - SCRATCH COAT PLAIN MONOCOAT (SCP – M) and in the material submittal for the color which is approved was the color of administrative building in the Amiriguard compound. Contractor has proposed samples matching the color of administrative building and consultant has finalized the color and approved the same for the application in the supreme command building as well. Area of application is the complete façade of the building

4 RESPONSIBLITIES

SR PROJECT ENGINEER AND PROJECT ENGINEER is responsible for the proper implementation of correct method statement. QA engineer will ensure QA and QA aspects as per the contractors QA QC policy which is to be submitted as a separate documentPPE – Refer Clause 13 of Approved HSE PlanSAFETY ARRANGEMENTS

A. Safe access and Egress to providedB. Proper lighting to be providedC. Fire extinguishers and fire Blanket has to be provided with each

torchD. Proper welfare to be provided

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5 PRELIMINARY DETAILS

Application is to be done with Brush , Roller or Spray

If Dilution if required (By Volume) we can do up to 5 % water depending on the consistency required

Surface Preparation: Surfaces shall be sound, Clean, dry & free from Oil or Grease.

Application: Material to be thoroughly stirred prior to the application. The application using brush or Roller requires lying onto the surface, avoiding brushing out, to achieve the required film thickness per coat. Surfaces shall be uniformly coated & free from voids, blisters or pin holes. Before recoating previous coats must have adequately cured. All dirt, dust or contaminants that fall on the coating between coats shall be removed before applying the next coat. Film thickness may be checked with a wet fi lm gauge.

Concrete surfaces: all concrete surfaces are to be applied with a rush coat and to be cured for 2 to 3 days. The rush coat as recommended by the manufacturer is CONCRETE RUSH COAT- CRC

Packing Size : 20 Ltr Containers

Storage & Shelf Life: Shelf Life of 12 Months in original sealed containers when stored in dry conditions at temperatures between 5 & 30 degrees. If stored at high temperatures, the shelf l ife may be reduced.

Health & Safety: Conmix Polymer Emulsion Coat is Non-flammable & is classified as non-hazardous. When applying gloves should be worn. Wash off splashes to skin with water. If in eyes wash out with plenty of clean water & seek medical attention

Technical Service: The Conmix Technical Service Department is available to assist us in the correct use of our products & its resources are at your disposal entirely without obligation.

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6 WORKING METHOD

CONCRETE RUSH COAT- CRC

BACKGROUND PREPARATIONThe fair-faced concrete background should be thoroughly cleaned devoid of dust, loose particles, wood pieces, mould oil etc. The suction in the background should be thoroughly neutralized by applying clean potable water. If any chemical substance (curing compound etc.) exists over the fair-faced concrete surfaces; it should be mechanically removed by scrabbling or sandblasting the entire surfaces before applying Conmix Concrete Rush Coat (CRC). Free water on the surface should be allowed to disperse before spraying CRC to avoid de-bonding later on.

MIXINGCRC supplied in 50 kg bags must be mixed with potable water only in a clean plastic bucket or a clean, non-corrosive, uncontaminated metal tub. To ensure a homogeneous and uniform mix, an electric agitator or paddle mixer must be used. The amount of water to be added is 9 liters per 50 kg bag (i.e. approx. 18% by weight). Add the CRC to water; turn the contents of the bag carefully adding small amounts at a time and stir frequently. Once mixed allow to stand for 5 minutes and mix again before spraying. No further water should be added to the mix. Hard and set plaster should not be remixed.

APPLICATIONThe mixed CRC should be sprayed on to the prepared background using a Tyrolean machine or a power pattern spray gun. CRC should not be applied using a trowel. Spray an entire prepared area and allow some time for the applied CRC to stiffen before doubling back. Ensure that the applied CRC covers the entire area of the concrete surface area. A rough texture is to be obtained to provide a mechanical key for the subsequent coat of plaster. The applied CRC should be water cured for a period of 2 days (3-4 times daily) and allowed to harden.

SPECIAL NOTEFor application procedure in case of l ight weight blocks, concrete containing micro sil ica, curing compound or any special additive or building material, kindly contact Conmix technical department for assistance.

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DECORATIVE PLASTER SCRATCH COAT- SCP (M)

BACKGROUND PREPARATIONThe fair-faced concrete background should be thoroughly cleaned devoid of dust, loose particles, wood pieces, mould oil etc. The concrete blocks should be cleaned using a stiff brush to remove any dust or loose particles. The suction in the background of both fair-faced concrete and block work should be thoroughly neutralized by applying potable water. Free water on the surface should be allowed to disperse before applying any further coat. If any chemical substance (curing compound etc.) exists over the fair-faced concrete surfaces; it should be mechanically removed by scrabbling or sandblasting the entire surfaces before applying

PLASTER ACCESSORIESPlastering accessories required are corner bead and plastering lath. Corner bead is to be fixed at all corners and plastering lath of 100 / 150mm thick is to be installed on all area where block work intercepts a RCC fact – either lintel of beam / slab. The material approved is the make from Ex Met Qatar

MIXINGSCP (M) supplied in 50 kg bags must be mixed with potable water only, in a clean plastic bucket or a clean, non-corrosive, uncontaminated metal tub. To ensure a homogeneous and uniform mix, an electric agitator or paddle mixer must be used. The amount of water to be added is 12 liters per 50 kg bag (i.e. approx. 24% by weight). Add the SCP (M) to water, turn the contents of the bag carefully and stir frequently. The amount of water added and mixing time should be constant for every batch to avoid color variations in the finished product. Once mixed allow to stand for 5 minutes and mix again before applying. No further water should be added to the mix. Hard and set plaster should not be remixed.

APPLICATIONSCP (M) mixed as above is applied in a single coat onto the prepared background up to a thickness of 18 mm leveled and finished to achieve the required design. Suggested finishes is using plain spittle (scraper) to achieve an uneven, semi rough, traditional finish. The manufacturer’s demonstration team shall assist in these procedures upon request.

SPECIAL NOTES:SCP (M) should be applied either in one continuous operation up to angles, features or in panels measuring not more than 15 m2. Cold joints should be avoided. The recommendations given in BS 5262: 1991 should be followed for deciding the location and fixing of control joints. Control joints can be formed by cutting a “V”

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groove in the applied plaster when it is stil l soft. SCP (M) has to be protected from direct wind, sunlight and rain during application and during the curing period by providing proper shade netting. SCP (M) has to be water cured for at least 2 days (3-4 times daily) by applying a fine mist spray of potable water over the entire surface.

8 APPENDIX

MANUFACTURERS RECOMMENDATIONs

Enclosed

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