The main reason for the failure of EB rubber waterstop A rubber waterstop

The main reason for the failure of EB rubber waterstop A rubber waterstop

1. Use substandard buried rubber waterstop. Some construction units are pursuing economic benefits unilaterally and purchasing cheap mid-buried rubber waterstop products; some construction managers mistakenly believe that a 30 mm wide gap will not generate too much pressure, so they relax the importance of mid-buried rubber waterstops. As for the quality inspection, it is not known that if the water depth is Sm, the mid-buried rubber waterstop will withstand a pressure of 1,500 N / m.

2. Improper construction method. 300 * 10 means that the rubber waterstop is generally placed in the middle of the bottom plate or the pool wall. It is equivalent to "hanging" in the air before pouring concrete. Many construction units only use the formwork to clamp and fix it, and no special reinforcement is provided Fixing frame and other reliable fixing. Due to the large pumping force of the pumped concrete and the vibration of the vibrating bar, the running position and tilt of the buried rubber water stop belt are often caused; and the concrete under the buried rubber water stop belt is not densely poured, which will cause Partial 300 * 10 refers to the free deformation of the rubber waterstop, which will form larger holes under the action of water pressure; there are also cases where the tear strength of the mid-buried rubber waterstop is low. Burial-type rubber waterstops caused cracks, and the construction personnel's sense of responsibility is not strong. If they are not found or not handled in time, they may become a hidden danger of water leakage, and the bottom of the pool is inconvenient to find the detailed leakage location. Therefore, all rework is often required.