Pedestrian passage expansion joint grouting plugging hydropower station channel expansion joint leakage repair company
The steps of grouting and plugging the expansion joint of the pedestrian passage are as follows:
1.Clean up the inside of the expansion joints for trash and mortar.
2.Buried grouting nozzles.
3.Cement mortar is prepared and high-pressure grouting is carried out. The cement mortar mix ratio is cement: water: waterproofing agent = 1:03：5。
4.Observe for 24 hours, if there is no abnormality, cut the grouting nozzle filled with water, and prevent the cutting edge from being too large and causing the grouting layer to fall off.
5.Check whether the tiles on both sides of the expansion joint are restored to flatness, and it is enough to restore the flatness.
In the process of plugging the leakage, it should be noted that the waterstop must be poured at the same time as the concrete on both sides, and the mortar cushion on the waterstop should be paved with no gaps around. Hope the above information is helpful to you. The method of filling the leakage of the expansion joint of the hydropower station channel is as follows:
1.Tamponade waterproof sealing material: Use flexible material to fill the expansion joint to make it an elastic expansion joint to adapt to the changes of thermal expansion and cold contraction.
2.Pouring water-stopping materials that are resistant to high temperature, cold and aging: such as polyurethane plugging agent, polymer cement mortar, etc., need to be poured from one end when pouring, and when the other end flows out, it shows that the grouting has been full.
3.Pouring polyurethane foam filling: this method is fast in construction, but it is easy to destroy the waterproof layer, and has a certain impact on the concrete on both sides of the expansion joint.
When repairing leaks, it is necessary to select the right materials and ensure that the construction process is correct so that the desired effect can be achieved. If the above methods do not solve the problem, it is recommended to seek help from someone. It should be noted that the expansion joint leakage repair of hydropower stations needs to be carried out by technicians to ensure safety and effectiveness.
Pedestrian passage expansion joint grouting plugging hydropower station channel expansion joint leakage repair company