How to deal with cracks in the floor?

There are many methods to deal with cracks in cast-in-place floor slab. First of all, we must know the causes of cracks. If the crack is caused by unqualified cement in concrete, it must be thoroughly treated, and the concrete must be knocked off and poured again. If the cracks are caused by stress, reinforcement and repair measures can be taken according to the causes of the cracks.