Description of construction joint water swelling strip waterstop :
construction joint water swelling strip waterstop 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 construction joint water swelling strip 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.
Application of construction joint water swelling strip waterstop:
Joints with limited movements.Construction joints and sheet pile joints.Water containment and reservoirs.Water and sewage treatment.Primary and secondary structures.Manholes and elevator pits, manure pitsTunnels, culverts, dams, water tanks and canals.Pipe penetrations.Swimming pools and parking garages.Retaining walls.Precast concrete structure.Foundations and basements. Slabs and king post.Fast track projects
Properities of construction joint water swelling strip waterstop:
| Physical properties |
Test method |
Result |
| Color |
- |
Black |
| Specific gravity |
ASTM D-71 |
1.35± 5% |
| Hydrocarbon content |
ASTM D-4 |
47% (min) |
| Volatile matter |
ASTM D-6 |
1% (max) |
| Penetration, cone at 77°F, 150 gm, 5 sec. |
ASTM D-217 |
40 mm ± 5% |
| Application temperature |
- |
-10°F to 125°F |
| Service temperature |
- |
-30°F to 180°F |
Audited Supplier 
Audited Supplier 
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