In order to facilitate comparison, it is stipulated that the specimens for measuring concrete performance must be cured under standard conditions. The standard curing conditions adopted in China are: the temperature is 20 2℃; ; Humidity is not less than 95%.
The purpose of curing is to create suitable temperature and humidity conditions to ensure or accelerate the normal hardening of concrete. Different curing methods have different effects on concrete performance.
The properties of concrete include the workability of concrete mixture, concrete strength, deformation and durability.
The workability, also known as workability, refers to the convenience of concrete mixture for the operation of various construction procedures under certain construction conditions to ensure the uniform and dense performance of concrete. Workability is a comprehensive technical index, including fluidity (consistency), cohesiveness and water retention.
Extended data:
Concrete has the characteristics of abundant raw materials, low price and simple production technology, so its consumption is increasing day by day. At the same time, concrete also has the characteristics of high compressive strength, good durability and wide range of strength grades.
These characteristics make it widely used, not only in various civil engineering, but also in shipbuilding, machinery industry, marine development, geothermal engineering and so on. Concrete is also an important material.
Baidu encyclopedia-concrete