|
SBS modified bitumen waterproof material is a tactic polypropylene (SBS), high polymer, other chemical material and asphalt at high temperature by use of strict technology and scientific formulation. And then use polyester unwoven fabric as fabric layer, with evenly impregnated double sides to make SBS modified asphalt composite, a new type waterproof material the surface of which undergoing a technological process i.e. covering it with PE film, fine sand and slate separately.
SBS modified bitumen waterproof material has a good non-water permeability. A long life in use, low cost, a relatively high tensile strength and coefficient of elongation and good performance of high and low temperature resistance.
Physical performance and specification of PRC national standard SBS modified asphalt material. (
GB18243-2000)
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Serial Number
|
Fabric
|
PY
|
G
|
|
Type
|
I
|
II
|
I
|
II
|
|
1
|
Content of soluble matter g/m2 >/=
|
2mm
|
------------------
|
1300
|
|
3mm
|
2100
|
|
4mm
|
2900
|
|
2
|
Non water permeability
|
Pressure , Mpa
|
0.3
|
0.2
|
0.3
|
|
Sustained time, min >/=
|
30
|
|
3
|
Heat resistance
|
90
|
105
|
90
|
105
|
|
No sliding, flowing, dripping
|
|
4
|
Tensile strength,N/50mm
>/=
|
MD
|
450
|
480
|
350
|
350
|
|
CD
|
250
|
250
|
|
5
|
Coefficient of elongation at maximum pulling force, % >/=
|
MD
|
30
|
40
|
------------------
|
|
CD
|
|
6
|
Low temperature flexibility, C
o
|
-18
|
-25
|
-18
|
-25
|
|
No cracks
|
|
7
|
Splitting tensile strength
N >/=
|
MD
|
250
|
350
|
250
|
250
|
|
CD
|
170
|
170
|
|
8
|
Artificial weather aging acceleration
|
Appearance
|
First class
|
|
No sliding, flowing, dripping
|
|
Pulling force hold rate % >/=
|
MD
|
80
|
|
Low temperature flexibility, C
o
|
-10
|
-20
|
-10
|
-20
|
|
No cracks
|
|
|
|
|
|
|
|
|
|
Note : Item 1-6
in table are necessary.
These specification are to be discussed and decided by supplier and buyer when there is need of over 130 C
o
heat resistance material.
Weight, area and thickness:
|
Specifications (rated thickness),mm
|
2
|
3
|
4
|
|
Upper surface material
|
PE
|
S
|
PE
|
S
|
M
|
PE
|
S
|
M
|
PE
|
S
|
M
|
|
Area m 2 /roll
|
Rated area
|
15
|
10
|
10
|
7.5
|
|
Deviation
|
+/- 0.15
|
+/- 0.10
|
+/- 0.10
|
+/- 0.10
|
|
The lowest weight Kg/roll
|
33.0
|
37.5
|
32.0
|
35.0
|
40.0
|
42.0
|
45.0
|
50.0
|
31.5
|
33.0
|
37.5
|
|
Thickness: mm
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Average value
|
2.0
|
3.0
|
3.2
|
4.0
|
4.2
|
4.0
|
4.2
|
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Minimum single value
|
1.7
|
2.7
|
2.9
|
3.7
|
3.9
|
3.7
|
3.9
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Application and production:
According to the needs of clients our corporation can turn out products with different specifications, types, grades. It is extensively applicable to roofs, bridges, channels, banks, culverts various pipes, underground works, airport runways for sealing, waterproof, corrosion protection and damp proof. It has a good bond performance and can be bonded with concrete, timber, bricks, stone, plastic,
metal etc. hot melt or cold bond with adhesive
methods can be used as required in construction.
It is convenient, safe, pollution free and easy to maintain.
Instruction:
1.Waterproof fabric surface (flat surface) must be hard, flat, dry (water absorption rate no more than 10 percent) clean and free of sand grain and sharp matters.
2.No construction is permitted to start if there is snow, water, ice and frost in the workshop.
3.The material is not applicable for use under temperature of negative value in construction. If it must be used under temperature of negative value there should be guarantee that some measures should be taken to prevent cracks and poor bond in the waterproof layer already placed. The material should be kept indoors and moved to the work site when it is to be used in construction.
4.Be careful at all the time to remove air by squeezing when laying the material in place so as not to cause ballooning.
5.Handle the material with care, you are not allowed to throw it to prevent damage when loading or transporting. |
