1. In theory, it is necessary to wait until the strength of fresh concrete reaches 12MPa or above before occupying the floor. At least three days later, people can be arranged to carry out construction work on the newly poured floor.

2, wait until the first layer of concrete strength, to a molding, if it is a brick-concrete structure.

3. The flat roof waterproof material is disposable, such as hanging tile or flat roof waterproof (4 days ago).

4. If the building is a frame structure, it needs to be molded once. If it is a brick-concrete structure, the second layer can be constructed after the first layer of ring beam concrete is solidified, which takes about 15 days.

5, wait until the first layer of concrete strength, to a molding, if it is brick and reinforced concrete structure.