asphalt mastic membrane and asphalt sheet

HB0908

New Construction Technology No. 204 Designated by Ministry of Construction & Transportation

MAS Waterproofing “Double Layers Waterproofing System of rubberized Asphalt Sheet”

Double Layers Waterproofing Of

Asphalt Mastic Membrane and Asphalt SheetFile No.

HB01

Asphalt waterproofing sheet

(attached with polyester non-woven fabric)

Asphalt mastic (for membrane)

Asphalt primer

Concrete slab

Asphalt mastic (for reinforcement)

Asphalt waterproofing sheet (attached with polyester non-woven fabric)


Asphalt waterproofing sheet (attached with polyester non-woven fabric)


Asphalt primer

Concrete slab

1. Overview of waterproofing System/Cross-section of waterproofing layer

- Double layers waterproofing system of asphalt membrane and asphalt sheet utilizing combination of bituminous

rubberized asphalt membrane waterproofing material with asphalt compound as primary component mixed with

synthetic rubber, synthetic macromolecular resin adhesives and inorganic filler of excellent durability, and asphalt

waterproofing sheet attached with polyester non-woven fabric

2. Characteristics of waterproofing system

Item Characteristics

Asphalt Mastic membrane

waterproofing layer

‐ membrane waterproofing layer fully adhered with concrete surface with adhesiveness of

asphalt mastic causing no separating or peeling

‐ Gel‐type membrane waterproofing layer responding even fine crack of structure

Asphalt sheet waterproofing layer

attached with polyester non‐woven

fabric

‐ Forming membrane sheet double waterproofing layer fully adhered and integrated with

asphalt mastic membrane waterproofing layer by impregnating asphalt mastic into

polyester non‐woven fabric

‐ Protecting waterproofing sheet from being broken

Adhering and reinforcing

waterproofing sheet joints with

asphalt mastic, and enhancing

water‐tightness of joints

‐ Preventing defects from heat bonding of waterproofing sheet joints (e.g., oxidation of

asphalt compound, and reduction of water‐tightness)

‐ Enhancing water‐tightness of waterproofing sheet joints

Easy location of defective section,

and simple repair

‐ It is not allowed of flowing water under the membrane sheet double waterproofing

layer fully adhered with concrete surface without separating or peeling.

‐ Easy location of defective section, and simple repair

Note : Asphalt materials with longest history, and excellent durability and reliability are used for waterproofing

materials after comparing advantages and disadvantages of conventional waterproofing system.

Adaptation of Double layers waterproofing system of asphalt membrane and asphalt sheet is the best

alternative considering easy installation with cold system, and easy location and simple repair of

defects.

Coating asphalt mastic membrane waterproofing materials(primary)

Forming mambrane waterproofing layer

Laying asphalt waterproofing sheet attached with polyester non-woven fabric (secondary)

Forming sheet waterproofing layer

membrane and double sheet waterproofing effect

through full adhesion and integration with concrete

surface without separating or peeling effect

3. Scope of applications of waterproofing systemItem Applicable section

Architectural structure - Waterproofing rooftop, underground exterior wall, and top slab of underground parking lot

Civil engineering structure

- Exterior waterproofing of underground concrete structure such as subway, underground roadway and utility tunnel

Note : Asphalt mastic is utilized as filling agent on expansion joints of concrete structure.

4. Construction sequence

① Arranging and cleaning surface

Checkpoints

‐ Smoothing the surface ‐ Removing foreign material such as earth, dust and sand from the surface for guaranteeing full adhesion of asphalt mastic membrane waterproofing layer with the surface

② Reinforcing waterproofing layer at waterproofing defective area and coating primer

CheckPoint

‐ Using asphalt mastic for coating and reinforced sheet to reinforce areas subject to defective waterproofing such as construction joints, concrete structure cracks, corners, edges, pipe & drain tube ‐ Reinforcing waterproofing layer on concrete crack section ‐ Reinforcing waterproofing layer by uniformly coating asphalt mastic around pipe and drain with gloved hands ‐ Coating asphalt primer on the entire surface with roller

③ Coating asphalt mastic for membrane

CheckPoint - Thoroughly coating asphalt mastic on the entire surface with trowel (thickness: 2mm)

④ Laying MAS/asphalt waterproofing sheet

CheckPoint

‐ Laying MAS/asphalt waterproofing sheet on asphalt mastic membrane waterproofing layer simultaneously with coating asphalt mastic membrane waterproofing material, and fully adhering the sheet on the asphalt mastic membrane waterproofing layer.

⑤ Reinforcing coating of asphalt mastic on waterproofing sheet joints

CheckPoint

‐ Applying thin coat of asphalt mastic on waterproofing sheet joints (width: 10cm)

‐ Applying reinforcing coat of asphalt mastic in 2~3 mm thickness on 5cm of the ends of

waterproofing joints (enhancing water‐tightness of joints)

‐ Applying reinforcing asphalt mastic on the ends of waterproofing layer in 2~3mm thickness

for full adhesion with concrete surface

⑥ Laying protection material of waterproofing layer, and placing pressing concrete

CheckPoint

‐ Checking waterproofing play for any damage during placing pressing concrete and back‐filling

5. waterproofing materialsItem Product Packing Remarks

Primer Asphalt primer 18ℓ Can Solvent asphalt primer

membrane

waterproofing

material

Asphalt Mastic

#2000 (for floor)

#3000 (for wall)

For membrane formation

20㎏ Bag ASTM D 2822

(Asphalt Roof Cement)

Quality standard productAsphalt Mastic

#5000

For reinforcing

20kg Pail

Sheet

waterproofing

material

MAS asphalt waterproofing sheet ①Thickness 1mm x width 1m

x length 20m/Roll (20m2) KS F 4917 : 2007

Quality standard productMAS asphalt waterproofing sheet ②

Thickness 2mm x width 1m

x length 10m/Roll (10m2)

6. Quality criteria of waterproofing materials

Item Testing Item Unit Quality criteria Remarks

Membrane

waterproofing

material

Solid (%weight) % 75 or moer KS M 3705

Particle (%weight) % Between 15 and 30 KS M 0009

Absorption quantity (24h) g 2 or less KS F 4919

Sagging resistance mmSagging length smaller than 3.0, and

no wrinkle on all of three samples KS F 3211

Alkali resistance ‐ No problem allowed KS M ISO 2812

Heat‐resistance (80℃) ‐ No problem allowed KS F 4917

Bending at low

temperature (‐15℃)‐ No problem allowed KS M 5000

Sheet

waterproofing

material

Tensile strength N/mm 5 or more

KS F 4917

Elongation rate % 15 or more

Tearing strength N 20 or more

Heat‐resistance

(length of sagging)mm 5 or less

Bending at low

temperature (‐10℃)‐ No fine crack allowed

7. Records of adoption of waterproofing system

- Excellent quality of waterproofing materials and system have fully been validated through supplying them to

some 2,100 construction sites as of June, 2009 including; Hyundai Engineering & Construction, Samsung

Engineering & Construction, Daewoo Engineering & Construction, GS Engineering & Construction, Lotte

Construction, SK Construction, Kyungnam Engineering & Construction, Daerim Industry, Hanhwa Construction,

Daewoo Automobile Sales Construction, Namkwang Construction, and Keyryong Construction.

‐ Adoption records for exterior waterproofing construction of underground concrete structures (e.g., power tunnel

and underground concrete box structure), and new and expansion constructions of schools and military facilities

‐ Korea Housing Corp. expanding adoption to whole construction sites recognizing ease of construction, cost

effectiveness and quality through trail adoption for three years

‐ Conventional three‐fold‐asphalt‐eight‐layer‐waterproofing system adopted since 1910’s and asphalt sheet waterproofing

system since 1970’s have been showing frequent defectives such as deficient water‐tightness on sheet joints, and

separation of waterproofing layer from concrete surface. Improved Double layers waterproofing system of asphalt

membrane and asphalt sheet is recognized of its quality, and exported to the Southeaster Asia countries such as

Taiwan, Viet Nam and China.

/ Replacement adoption for asphalt sheet waterproofing, polyurethane membrane waterproofing, soluble

rubberized asphalt membrane waterproofing system / Refer to the adoption records.

‐ Designated a new construction technology (No. 204) by Ministry of Construction and Transportation

(waterproofing system) (Sep., 1999)

‐ Korea Housing Corp. expanding adoption to whole construction sites recognizing ease of construction, cost effectiveness

and quality through trail adoption for three years (Oct., 2000)

‐ Recognized of new material + new engineering by Korea Land Corp. (Dec., 1999)

‐ Recognized of good products by Public Procurement Service. (Mar., 2000)

‐ Certified of Double layers waterproofing system of asphalt membrane and asphalt sheet as excellent technology

by China Construction Center in China (May. 2006)


Construction ParkView in Bundang

Architect firm SK Construction / POSCO construction

Applicable section Slab over underground parking lot

Construction periods (area) November, 2002 (95,000㎡)

Construction Sixth Daewoo Dream World, Gojan, Ansan

Architect firm Daewoo E&C


Construction periods (area) July, 2003 (30,000㎡)

Construction LG Sinbong Xi Second Apartment Complex

Architect firm LG E&C


Construction periods (area) January, 2004 (40,000㎡)


Construction First apartment reconstruction, Dogok‐dong

Architect firm Hyundai E&C

Applicable section Slab over underground parking lot / rooftop

Construction periods (area) June, 2004 (41,200㎡)

Construction First City, Guwol, Incheon

Architect firm Lotte E&C / Hyundai E&C

Applicable section Slab over underground parking lot / rooftop waterproofing

Construction periods (area) April, 2005 (180,000㎡)

Construction Hanhwa Dream, Techno Valley, Daedeok

Architect firm Hanhwa E&C




Construction New campus of Incheon University, Songdo

Architect firm SK E&C / GS E&C

Applicable section Slab over underground parking lot / rooftop waterproofing / utility tunnel


Construction ZIWELL City, Cheongju

Architect firm Doosan E&C/Halla E&C

Applicable section Slab over underground parking lot / rooftop waterproofing

Construction periods (area) May, 2008 (80,000㎡)

8. Configuration shape drawing of waterproofing sheet

(MAS / asphalt waterproofing sheet) MAS / asphalt waterproofing sheet ① MAS / asphalt waterproofing sheet ②

Rubberized asphalt compound

Polyester non‐woven fabric

PE film(or stretchy asphalt felt)

Dimensions Thickness 1 mm x width 1m x length 20m/Roll (20㎡)

Reinforcing material (synthetic resin)


Polyester non‐woven fabric

PE film(or stretchy asphalt felt)


Dimensions Thickness 2 mm x width 1m x length 10m/Roll (10㎡)

Double Layers Waterproofing Of

Asphalt Mastic Membrane and Asphalt SheetFile No.

HB01

asphalt mastic membrane and asphalt sheet

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