2, brush the second time waterproof coating. Note that there is a certain time interval between the first and second pass of the waterproof coating. After the first pass of the coating, the second pass can be performed. The specific time depends on the coating. The interval is too short and the effect of waterproofing will be greatly reduced.
3, shop protection layer. In order to prevent the subsequent construction from damaging the waterproof layer, a protective layer should be applied on the surface of the waterproof coating. The protective layer must completely cover the waterproof layer without any omission. It has a firm bond with the grass roots, no cracks, no bubbles and no shedding.
4, closed water test. In the closed water test, the water at the highest point on the ground must not be lower than 2 cm, and it should be stored for at least 24 hours, and it should be considered as qualified after observing no leakage. If there is leakage, you need to redo it, and you must not neglect it.
Primary treatment, cleaning, do leveling layer, bonding layer, additional layers, acrylic waterproof layer, water storage test, protective layer construction, secondary storage test.
1. Correctly check the elevation of the kitchen and toilet, and pay special attention to the correct position of the floor drain.
2. The quality of the wall leaks on the floor drains and pipelines should be carefully inspected. The wall holes should be densely packed and the roots of the pipelines must be required for caulking.
3, Yin Yang angle should be made into a circular arc, and straight, flat light.
4, leveling layer construction: base surface voids, cracks, inequality defects, repair and smooth with cement mortar. The base must be sturdy, smooth and clean, free of dust, grease, wax, mold release agents, and other debris.
5. After the leveling layer is dry, it can be used for waterproof layer construction. The construction period should be fireproof and waterproof. Construction workers should wear soft-soled shoes.
6, after the completion of the waterproof layer, to protect the finished product, no businessmen can move. After passing the inspection and passing the inspection, the company can apply for the concealed project acceptance visa before proceeding with the next process.
7. After the water-proof construction is completed, a water storage test is conducted and no leakage is considered qualified after more than 24 hours. After the installation of the equipment is completed, a secondary impoundment test is performed.
Precautions:
1, do leveling layer. First, use a cement mortar to flatten the floor (especially to redecorate the house) and then do the waterproofing. This will prevent leakage of the waterproof coating due to uneven thickness or penetration of the waterproof membrane.
2, to focus on the key parts. The seams between the wall and the ground and the joint between the upper and lower water pipes and the ground are the most prone to problems. Therefore, we must pay special attention to these parts. The treatment must be meticulous, and we must not be sloppy.
3, to waterproof the wall. In order to achieve a better waterproof effect, the general bathroom wall should also be about 30cm high waterproof treatment to prevent stagnant water through the wall. The wall adjacent to the bathtub is also higher than the upper edge of the bathtub and the shower height is 180cm.
4, do waterproof experiments. After waterproofing is completed, all sewers in the toilet shall be blocked and a water injection test shall be conducted. After 24 hours inspection, if there is no leakage around the bathroom wall and the ground, the waterproof quality of the bathroom is very good. Instead, find the leak and perform maintenance.
Bathroom waterproof construction materials
First, pouring reinforced concrete floor.
Second, 1:3 cement mortar to find the slope layer, the thinnest at 20MM thick, slope drain to the ground, once wiped.
Third, Leibang Shi acrylic polymer cement-based waterproof slurry.
Fourth, 30MM thick dry cement mortar combined layer.