General requirements, not less than 7 days. However, it shall not be less than 14 days if retarder is mixed or impermeability is required.

Of course, it depends on the weather. If the weather is big, you can cover it with plastic film after pouring. It must be covered and cured within 12 hours and kept moist. When the weather temperature is high, it is best to cover it immediately during the initial setting, otherwise it will affect the concrete.

Reinforced concrete floor refers to the floor made by formwork support, steel binding, concrete pouring, maintenance and formwork removal at the site according to the design position.

Reinforced concrete structure refers to the structure made of reinforced concrete. The main load-bearing members are made of reinforced concrete. Including thin shell structure, large formwork cast-in-place structure and reinforced concrete structure building built by sliding mode and lifting plate. A building made of steel and concrete. Steel bars bear tension and concrete bears pressure. Compared with steel structure, it has the advantages of durability, good fire resistance, steel saving and low cost. Reinforced concrete members prefabricated in factories or construction sites are assembled on site.

Adoption. Oh, thank you