Common Rubber Water Stop
Waterstop is installed in the construction joints, settlement joints, deformation joints between, to play a water stop leak prevention role. According to the different materials, the waterstop is generally divided into: rubber waterstop, plastic waterstop, steel edge waterstop and steel plate waterstop.
Product Description
Waterstop is installed in the construction joints, settlement joints, deformation joints between, to play a water stop leak prevention role. According to the different materials, the waterstop is generally divided into: rubber waterstop, plastic waterstop, steel edge waterstop and steel plate waterstop.
Product Characteristics
1, With a certain mechanical strength and large elongation
2, Good chemical stability, good corrosion resistance to acid and alkali and salt aqueous solutions
3, Resistant to tearing, strong strain, good elastic recovery, good water stopping effect
4, Weather resistant, aging resistant, stable product performance and long service life.
Performance indicators
National standards are shown in Table 1 and corporate standards are shown in Table 2.
Table 1 Physical and mechanical properties of rubber and steel edge rubber waterstop national standards
Serial number |
Projects |
Requirements |
||
B、S-type |
||||
1 |
Hardness (Shore A) degrees |
60±5 |
||
2 |
Tensile strength MPa |
≥10 |
||
3 |
Elongation at tear |
≥380% |
||
4 |
Compression permanent deformation |
70℃×24h, 25% |
≤35% |
|
23℃×168h, 25% |
≤20% |
|||
5 |
Tear strength kN/m |
≥30 |
||
6 |
Brittleness temperature ℃ |
≤-45 |
||
7 |
Hot air aging (70℃×168h) |
Shore hardness |
≤+8 |
|
Tensile strength MPa |
≥9 |
|||
Elongation at tear |
≥300% |
|||
8 |
Ozone aging [50×10-8 , 20%, (40±2)℃×48h] |
No cracking |
||
9a |
Rubber to metal bonding |
Rubber damage |
||
a Only steel edge rubber type water stops are required. |
Table 2 rubber and steel edge rubber waterstop enterprise standard physical and mechanical properties
Serial number |
Projects |
Requirements |
|||
Type B |
S-shape |
||||
1 |
Hardness (Shore A) degrees |
60±5 |
60±5 |
||
2 |
Tensile strength MPa |
≥15 |
≥12 |
||
3 |
Elongation at tear |
≥450% |
≥450% |
||
4 |
Compression permanent deformation |
70℃×24h, 25% |
≤30% |
≤30% |
|
23℃×168h, 25% |
≤20% |
≤20% |
|||
5 |
Tear strength kN/m |
≥30 |
≥30 |
||
6 |
Brittleness temperature ℃ |
≤-45 |
≤-45 |
||
7 |
Hot air aging (70℃×168h) |
Shore hardness |
≤6 |
≤6 |
|
Tensile strength MPa |
≥12 |
≥10 |
|||
Elongation at tear |
≥400% |
≥400% |
|||
8 |
Alkali resistance (saturated Ca(OH)2 solution, 23°C x 168h) |
Shore hardness |
≤6 |
≤6 |
|
Tensile strength MPa |
≥12 |
≥10 |
|||
Elongation at tear |
≥400% |
≥400% |
|||
9 |
Ozone aging [50×10-8 , 20%, (40±2)℃×48h] |
No cracking |
No cracking |
||
10a |
Rubber to metal bonding |
Rubber damage |
|||
11 |
Gum content |
≥35% |
|||
a Only steel edge rubber type water stops are required. |
Applications
Construction joints and deformation joints set up during concrete pouring; underground facilities, tunnel culverts, water conveyance tanks, etc. The products can be customized in size according to the specifications required.