For concrete joints in: Manholes, Box Culverts, Double Pours, Containment Structures, Concrete Slabs,Bridge & Deck Abutments, Large Septic Tanks, Wall or Floor Penetrations, Tunnels, Cold Joints,Retaining Walls, Controlled Environment & Utility Vaults, Water & Wastewater Treatment Facilities, and Precast Duct Banks. Not intended for use in expansion joints or joints that move.Â
NSF Standard 61 Certified, Safe for Drinking Water ApplicationsÂ
ConSeal CS-231 Waterstop is a rubber-based product that has been formulated with hydrophilic compounds that allow it to expand in a controlled fashion when exposed to moisture, thereby sealing off leaks and restoring long-term, watertight joint integrity. Traditional, clay-based waterstop products, on the other hand, expand uncontrollably and eventually deteriorate, causing a complete loss of joint integrity.
The test evaluates the integrity of CS-231 Waterstop when exposed to cycles of hydration and dehydration. A cycle consists of nine days full immersion in water followed by five days air-drying. ConSeal CS-231 showed no visible signs of deterioration at the conclusion of 10 cycles of exposure.
| Description | Test Method | CS-231 |
| Color | Black | |
| Specific Gravity | ASTM D71 | 1.35–1.45 |
| Hydrocarbon Content | ASTM D4 | 47% min. |
| Volatile Matter | ASTM D6 | 1% max. |
| Penetration, cone 77°F (25ºC) 150 gm. 5 sec. |
ASTM D217 | 40–50 dmm |
| Application Temperature Range | -10°F to 125°F (-22°C to 52°C) | |
| Service Temperature Range | -30°F to 180°F (-34°C to 82°C) |
| Description | CS-231 |
| Maximum Swelling – Deionized Water | 145% |
| Maximum Swelling – Saltwater (3%) | 12% |
| Hydrostatic Pressure Resistance – Standard Precast Concrete Joint |
30 psi (2 bars) |
| Hydrostatic Pressure Resistance – Cast-In-Place Construction Joint |
100 psi (6.8 bars) |
IMMERSION TESTING
Deionized Water Exposure Results:
24 Hours: 15% Expansion
72 Hours: 40% Expansion
7 Days: 55% Expansion
14 Days: 70% Expansion
21 Days: 80% Expansion
30 Days: 85% Expansion
