Closed water test is very important, it is a relatively easy part of the decoration process, of course, do not think it is not important because he is relaxed, on the contrary, closed water test is very important, if not done will bring great trouble for future life , The test owners are advised to raise their vigilance. The closed water test is usually done after the hydropower reform, before the tile is laid, then how does the closed water test be done?
First, when does the closed water test?
Closed water test should be carried out 24 hours after the completion of waterproof construction. The quality of waterproof construction should be checked before the test, such as whether the coating surface is smooth and cracked or not; whether the internal angles, sunken angles, floor drains, drainage pipe roots, etc. are compensated. Repair treatment; waterproof layer is completely dry and so on. At the same time, it is also necessary to contact the tenants downstairs in advance to prevent leaks and assist them.
Second, how to do closed water test?
The water retention depth of the closed water test should not be less than 20mm, and the water storage time should be 24 hours. No significant drop in water level is acceptable. The first half of the closed water test should be checked downstairs every one hour, and checked downstairs every two to three hours later. If water leakage is found, the water-rejection test shall be stopped immediately, and the water-repellent layer shall be re-applied. After the treatment is qualified, the water-cut test shall be conducted.
Bathroom waterproof material is recommended to use JS composite waterproof coating. The waterproof material is based on polymer emulsion and cement as the main raw material, and the liquid material and the powder material made by adding other additives are mixed and used in proportion, and can be used in the case of the base layer being wet, and the operator's Small harm, safety and environmental protection.
Decoration construction knowledge
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