There will be some water seepage in the future
Treatment method of joint
1. For cracks on the surface of general concrete floor, clean the cracks first, and then seal them with epoxy grouting or brush them on the surface after drying. During the construction, if cracks are found before the final setting, they can be plastered. If the water-cement ratio is large or the mixing is uneven, it is very simple and effective to gently sweep the compacted concrete surface with a bamboo broom.
2. For other general crack treatment, the construction sequence is as follows: use 1: 2 or 1: 1 cement mortar to clean slab joints, flatten them and maintain them.
3. When the crack is large, a splayed groove should be chiseled along the crack. After cleaning, level with 1: 2 cement mortar, or caulk with epoxy mortar. At the beginning of this paper, this method is used to deal with cracks in residential floors.
4. When the crack area of the floor is large, static load test should be carried out on the floor to check its structural safety. If necessary, a layer of steel wire mesh can be added to the floor to improve the integrity of the floor.