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This product has the effect of soaking in water to expand and "stop water with water"; Has a slow expansion rate, with an expansion rate ≤ 50% of the maximum expansion rate after immersion in water for 186 hours; This product has convenient installation and construction, low price, and is non-toxic and pollution-free. Under long-term immersion in water, there is no precipitation of dissolved substances; The biggest difference compared to other hydrophilic expansion waterstops is that their hydrophilic expansibility has not been lost after long-term repeated expansion. It has the characteristics of good weather resistance, aging resistance and corrosion resistance.
Technical index| Water Stop Strip: GB/T 18173.3-2014 | ||||||
| Item | Index | |||||
| PZ-150 | PZ-250 | PZ-400 | PZ-600 | |||
| Hardness (Shore A)/degree | 42±10 | 45±10 | 48±10 | |||
| Tensile strength/MPa,>= | 3.5 | 3 | ||||
| Elongation at break/%,>= | 450 | 350 | ||||
| Volume expansion ratio% | 150 | 250 | 400 | 600 | ||
| Repeated immersion test | Tensile strength /MPa,>= | 3 | 2 | |||
| Elongation at break /% ≥ | 350 | 250 | ||||
| Volume expansion ratio/% ≥ | 150 | 250 | 300 | 500 | ||
| Low temperature bending (-20ºC×2 h) | No cracks | |||||
| Note: The tensile strength and elongation at break of the finished product slice test should reach 80% of this standard; The tensile strength and elongation at break of the joint should reach 50% of this standard. | ||||||
The waterstop is the latest and most ideal material for seepage prevention and leakage prevention of reinforced concrete construction joints in various underground structure construction projects, water conservancy projects, traffic tunnel projects, power plant cooling towers, municipal water supply and drainage, etc. It completely solves the problem that rubber and steel waterstop are prone to bypass seepage by friction.
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