Waterproof and leakage-patching methods for external walls of floors and precautions for waterproof and leakage-patching.

With the rapid development of the national economy, more and more people live in high-rise buildings, and water leakage will naturally occur inside and outside the building, so waterproofing is also very important. Waterproof and leak-patching, in general, is the construction of indoor and outdoor waterproof treatment and leak-patching for indoor and outdoor leakage parts of buildings. Broadly speaking, this is the waterproof treatment of space objects and the treatment of liquid and liquid leakage. Let's listen to the waterproof and leak-proof methods of Bian Xiao floor exterior wall.

First, waterproof and leak-proof methods

A, ground treatment for leakage: punch the leaking part with a chisel or an impact drill, and flush the hole with water; Plastering: the base surface must be fully wet, and the base surface should be firm, clean, smooth and not concave and convex. In places with serious water leakage, holes should be made to draw water.

B, in strict accordance with the material ratio, mix evenly and delicately.

C, combined with reinforced polyester cloth, adopt the construction technology of "three coats and one cloth" or "more coats and more cloths".

D. Precautions: The mixed materials should be prepared as required, and the mixed materials must be used up before solidification; Try to avoid construction in the hot sun. If the coating is cured under the scorching sun, shading measures and wet curing should be added in time, and antifreeze should be added for construction below 0℃. Materials should be stored in a dry place indoors. After the packaging bag (cover) is assembled and disassembled, the remaining materials should be tied tightly (screwed firmly) to avoid moisture.

Second, the crack grouting construction method

1. Drilling: The principle of hole arrangement is to make holes sparse first and then dense, then center them, and punch holes with a blower to thoroughly clean the sand and silt in the holes. Through drilling, we can understand the communication relationship between holes, so as to determine the grouting hole and exhaust hole;

2. Grouting: Before grouting, water injection test should be carried out to check whether the holes are unblocked, and then the ultra-early strength self-leveling cement-based grouting material should be pulped with a mixer according to the ratio of ash to water 1:0.4. After the prepared slurry is put into the slurry storage barrel, it is pumped to the working face by pressure for grouting. The grouting process can depend on the setting time of the slurry to ensure its stone strength.

Third, matters needing attention

1. Before use, the coating should be mixed evenly.

4. No construction is allowed when the temperature is lower than 0℃ or higher than 35℃ (high temperature construction should be avoided).

3. The storage and transportation temperature is 5℃-35℃.

4. Six hours without rain and snow should be chosen for construction.

5. Before coating is dried or waterproof coiled material is laid, trampling or other construction and vehicle driving are prohibited.

6. Please refer to the product manual before construction.

There are many ways to waterproof and repair the leakage of the ground exterior wall. Through several methods introduced by Bian Xiao above to solve the problem of waterproof and leakage, Bian Xiao believes that this method can help most people solve this problem. If the waterproof and leakproof of the external wall of the floor mentioned by Bian Xiao is useful to the owner, please continue to pay attention to us.