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Bentonite swelling rubber strip
Product Information
Waterproof belt is a kind of waterproof belt mainly used in concrete deformation joints, expansion joints and other concrete internal settings. It has the ability to adapt to the expansion and deformation of concrete with elastic material and structural form. This product utilizes the high elasticity and compressive deformation of rubber to produce elastic deformation under various loads, so as to tighten and seal effectively to prevent leakage and seepage of building components, and play a role of shock absorption and cushioning， which can ensure the service life of engineering buildings.
Product Uses
It is mainly used for the foundation engineering, underground facilities, tunnel culverts, water conveyance aqueducts, water retaining dams, etc. which are set in the construction joints and deformation joints when the concrete is cast in place and become an integral part of the concrete structure to ensure the service life of the project construction.
|
Serial number |
Item |
Index |
||||
|
B |
S |
J |
||||
|
1 |
Hardness (shor A), degree |
60±5 |
60±5 |
60±5 |
||
|
2 |
Tensile Strength, MPa ≥ |
15 |
12 |
10 |
||
|
3 |
Elongation at break,% ≥ |
380 |
380 |
300 |
||
|
4 |
Compression permanent deformation |
70℃×24h,% ≤ |
35 |
35 |
35 |
|
|
23℃×168h,%≤ |
20 |
20 |
20 |
|||
|
5 |
Tearing Strength, KN/m ≥ |
30 |
25 |
25 |
||
|
6 |
Brittleness temperature ℃≤ |
-45 |
-40 |
-40 |
||
|
7 |
Hot air aging |
70℃×168h |
Hardness (shor A), degree ≤ |
+8 |
+8 |
-- |
|
Tensile Strength, MPa ≥ |
12 |
10 |
||||
|
Elongation at break,% ≥ |
300 |
300 |
||||
|
100℃×168h |
Hardness (shor A), degree ≤ |
-- |
-- |
+8 |
||
|
Tensile Strength, MPa ≥ |
9 |
|||||
|
Elongation at break% ≥ |
250 |
|||||
|
8 |
Ozone aging 50pphm: 20%, 48h |
2grade |
2grade |
0grade |
||
|
9 |
Rubber and metal bonding |
Section in elastic body |
||||
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