The curing period of concrete is once every 7 days, the initial setting only needs 80% of the strength requirements, and the final setting is 28 days, which must meet the strength of the label. The curing of concrete includes natural curing and steam curing. Concrete refers to the general name of engineering composite materials in which aggregates are bonded into a whole by cementing materials.

The term concrete refers to cement as cementing material and sand as aggregate; Cement concrete, also known as ordinary concrete, is made by mixing and stirring water (including admixture and admixture) in a certain proportion, which is widely used in civil engineering. Concrete has the characteristics of abundant raw materials, low price and simple production technology, so its consumption is increasing day by day.