Waterproof leak repair construction technology

1.1 Drainage and mud cleaning:
First enter the cable trench, check the water in the trench and the infiltration of soil, use the drainage pump to drain the water in the trench, and then remove the dirt and other debris in the trench.
2. Cyanide condensation plugging
2.1 Concrete surface treatment:
First use a small hammer, wire brush and sandpaper to remove debris, scum, rust, etc. on the repaired surface. Care should be taken to prevent the cracks from being blocked during the cleaning process. Clean the cracks with cotton wool dipped in acetone or xylene. The base surface must be fully moistened, clean, firm, and flat, but not too smooth.
2.2 Leakage:
Use a chisel or percussion drill to make a groove or hole with a certain depth (approximately 5-6cm in width) and approximately 5cm in depth along the leaking opening. The opening should be made as small as possible, but the new stubble must be exposed and then rinsed with water.
Leakage construction operation
According to the shape of the opening and the crack, knead the plugging material into a mass smaller than the size of the opening, and place it for a few minutes (pinch it with a hard feeling by hand), and then plug it into the leak. Squeeze it with a wooden stick to squeeze it to the surroundings, and then stop the leak instantly, and then apply a layer of scraping material on the outside of the opening, crack and 50cm around. Before plugging the leak, it is best to do waterproof treatment for the surrounding parts that may leak, and then plug the leak after the waterproof layer has hardened, otherwise the water may squeeze out from the surroundings.
2.1 Insulation and maintenance
After the coating is hardened, moisturize and maintain it immediately to prevent chalking. The curing methods are: spraying water, covering wet objects, applying curing fluid, etc. Care should be taken in the first curing so as not to damage the coating, and curing for a total of 2 to 3 days. Wet areas can be maintained naturally.