Description of water expanding joint waterstop bentonite waterstop:
Waterstop joint is a kind of hydrophilic water sealing product coming with incomparable durability and higher water absorption no less than 300%. Unlike traditional clay based waterstops, this one utilizes rubber as base material to form a controlled, moisture active sealant - that means the bentonite waterstop will not expand to point losing much of integrity even being washed away by water during continually expansion.
Features of water expanding joint waterstop bentonite waterstop:
1.Quality sodium bentonite clay and rubber materials.
2.Moisture activated.
3.Strong, durable with high cost effectiveness.
4.High water absorption with excellent compression seal.
5.High expansion control ability for preserving its integrity.
6.Controlled internal pressure in surrounding concrete to avoid spalling and cracks.
7.Withstand high water pressure.
8.Capable to self-healing.
9.Easy and fast to transport and install.
10.Easy to joining.
11.Non toxic
Properties of water expanding joint waterstop bentonite waterstop:
| NO |
ITEM |
Result |
| |
|
PN-150 |
PN-220 |
PN-300 |
| 1 |
Expansion reate/% ≥ |
150 |
220 |
300 |
| 2 |
Flow at high temperature (80ºC×5 h) |
No flow |
No flow |
No flow |
| 3 |
low temperature test (-20ºC×5 h) |
No crack |
No crack |
No crack |
| 4 |
peel strength |
0.05 MPa |
| 5 |
shear strength |
1.0 MPa |
| 6 |
Hydrostatic pressure |
1.2 MPa |
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