Concrete refers to the general name of engineering composite materials in which aggregates are bonded into a whole by cementing materials. Generally speaking, concrete refers to cement concrete, also known as ordinary concrete, which is made of cement as cementing material, sand and stone as aggregate, and water in a certain proportion.

The purpose of its maintenance is to create suitable temperature and humidity conditions to ensure or accelerate the normal hardening of concrete.

Common curing methods include natural curing, steam curing, dry-wet curing, autoclaving curing, electric heating curing, infrared curing and solar curing.

The time of maintenance experience is called maintenance cycle. In order to facilitate comparison, it is stipulated that the test piece for measuring concrete performance must be in the standard strip.