If this kind of problem occurs, the solution is to knock the crack open, carefully check the situation, find out the causes of the crack, and see what kind of crack it belongs to, such as ground crack, right-angle crack, outline crack, irregular figure-eight or twill. Every kind of crack has different reasons, so we should observe the situation of these cracks first. Experts from Fivas Floor Company explained that the solution is to backfill the material at the crack, and the backfill should be compacted and must be compacted. If this situation is serious, it can only be knocked out and repaved with cement.