Modified Asphalt waterproof Membrane (SBS )
Product Description:
LD-11 Model APP-Modified Asphalt Waterproof Membrane that abides by standard-GB18242-2000 to produce, which adopts amorphous polypropylene (SBS) modified asphalt as a dipping and covering modifier, whose upper surface is coated by PE film, fine sand, mineral granules or aluminum foil, copper foils or other isolating materials.
Main Features
Ø It could form a waterproof layer, which has high strength and good property to stand against water pressure；
Ø High tensile strength and elongation rate, strong adaptability for substrate shrinking distortion and cracks；
Ø Good resistance to low temperature, corrosion, mildew and weathering；
Ø Large thickness of PY fiber enables the products quite resistant to puncture, pressing, rubbing, tearing, and wearing；
Ø Good construction performance, with firm and enduring joints;
Applied Range
Ø All kinds of building roof engineering projects
Ø All kinds of underground waterproof or dampproof engineering projects;
Ø Bridge surfaces of subways, tunnels, concrete roads, sewage treatment, garbage burying projects and other municipal engineering waterproof projects；
Technical Properties: (Implementing standards GB18242-2000)
|
No. |
Substrates |
PY |
G |
|
Types |
Ⅰ |
Ⅱ |
Ⅰ |
Ⅱ |
|
1 |
Content of soluble substances g/ m2
≥ |
2mm |
- |
1300 |
|
3mm |
2100 |
|
4mm |
2900 |
|
2 |
Water impermeability |
pressure, MPa≥ |
0.3 |
0.2 |
0.3 |
|
retention time, min≥ |
30 |
|
3 |
Heat resistance degree, ℃ |
110 |
130 |
110 |
130 |
|
No slipping, flowing or dropping |
|
4 |
Tensile strength, N/50mm ≥ |
Longitudinal |
450 |
800 |
350 |
500 |
|
Transverse |
250 |
300 |
|
5 |
Elongation at break % ≥ |
Longitudinal |
25 |
40 |
— |
|
Transverse |
|
6 |
Flexibility at low temperatures, ℃ |
-5 |
-15 |
-5 |
-15 |
|
No cracks |
|
7 |
Tearing strength, N≥ |
Longitudinal |
250 |
350 |
250 |
350 |
|
Transverse |
170 |
200 |
Construction Point
Ø Construction methods——hot melt, cold and hot adhering methods could be adopted to adhere sheets and substrates, or different sheets.
Ø Substrate preparation——waterproofing substrates shall be flat, solid, sufficiently dried . Detail structures shall meet requirements of related stipulations and designs.
Ø Vertical surface ends——fasten with metal battens and bolts, coat special sealant in all edges.
Ø Protection isolation layer construction——protection isolation layer shall be set on the exterior surface of waterproof layers according to related stipulations and designs, if use shale sheets or mineral grain coating surfaces as exposed waterproof layers, additional protective layer could be omitted; isolation layers shall be set between waterproof layers and rigid protective layers.
Attentions for Construction
Ø Construction shall not be carried out in rain, snow or over 5 degree wind weather;
Ø There shall be sufficient safety protective facilities in construction site, place firefighting devices according to stipulations.
