Cracking of concrete floor slabs is a very common problem in the construction field, which not only affects the appearance and safety of buildings, but also may pose a threat to the lives and property of occupants. Therefore, in this case, it is necessary to find out the cause and deal with it in time, so what is the cause of the cracking of the concrete floor slab?What are the ways to deal with it?
There are several reasons for cracking in concrete floor slabs, which can include the following:
1. Insufficient reinforcement: If the reinforcement spacing of the floor slab is too large, or the reinforcement configuration is insufficient, it may lead to cracking of the floor slab when stressed.
2. Structural design problems: if the foundation settlement is uneven, it will lead to cracking of the floor slab. In addition, cracking can also be caused by uneven local forces and structural design defects.
3. Ambient temperature change: The volume of concrete will change during the hardening process, and when the concrete floor slab exists in an environment with large temperature changes, the temperature change will cause the concrete to crack.
4. Construction quality: In the process of concrete pouring and construction, if the vibration is uneven, the vibration leakage or the construction is improper, it may lead to cracks in the concrete.
5. Curing conditions: Curing is an important means to ensure the normal hardening of concrete. If the curing conditions are not good, such as insufficient watering and unsuitable temperature, it may also lead to cracking of the concrete.
What are the treatment methods for cracking concrete floor slabs
1. Surface treatment: For the case that the crack is small and does not penetrate the entire thickness of the floor, the surface treatment method can be used. Cracks are usually cut, cleaned, and then coated with materials such as waterproof glue or epoxy resin to seal the cracks and prevent moisture from entering.
2. Structural reinforcement: If the crack seriously affects the bearing capacity of the floor slab, structural reinforcement is required. Reinforcement methods such as adding steel bars and steel plates can be used to improve the bearing capacity and stability of the floor slab.
3. Waterproof treatment: Cracks may cause water seepage problems, so waterproof treatment is required. The surface of the floor can be coated with waterproof coating or waterproofing membrane can be laid to prevent moisture from penetrating into the interior of the floor.