1. Changes in temperature
The temperature change is the main cause of cement batching plant concrete cracks. Under the joint action of external ambient temperature and internal hydrothermal effect, concrete is very prone to concrete cracks. If the internal heat of concrete cannot be effectively released, it will expand due to excessive temperature, resulting in a certain tensile stress and destroying the stability of the original structure; Cracks will appear inside or on the surface, that is, temperature cracks.
2. Deformation
If the deformation is restrained and the tensile strength of the concrete is less than the stress of its internal structure, cracking will occur. In addition, concrete will also produce shrinkage cracks, which mainly include two types. One is the deformation caused by the self-heavy weight of the concrete structure, which promotes cracks; the other is premature bleeding of concrete and the lack of moisture in the concrete. crack.
3. Shrinkage
A large number of facts show that the shrinkage of concrete will cause cracks on the surface of its structure. The main reason for this type of crack is that the concrete has not been effectively maintained after hardening and forming, causing the surface water to lose too fast, resulting in a large shrinkage phenomenon.
4. Uneven foundation settlement
Uneven foundation settlement is also the main cause of concrete cracks. The cracks caused by the uneven settlement of the foundation will become larger as the position difference of the settlement part increases.
