On January 11, 2022, CCPA and CBMF jointly approved and issued 3 CCPA standards, Technical Specification for Control of Cracking in Cast-in-situ Concrete Structures (T/CBMF 163—2022/ T/CCPA 27—2022), Technical Requirements for Durability Evaluation of Precast Concrete Components (T/CBMF 164—2022/ T/CCPA 28—2022) and Water-retaining Admixture for Concrete (T/CBMF 165—2022/ T/CCPA 29—2022), which shall be implemented from May 11, 2022.

The standard Technical Specification for Control of Cracking in Cast-in-situ Concrete Structures specifies the requirements of design, material and construction for cracking control in cast-in-situ concrete structure, which is applicable to various cracking control in the construction stage of cast-in-situ concrete structure of industrial and civil buildings. The release and implementation of the standard has guiding significance for improving the construction quality of cast-in-situ concrete.

The standard Technical Requirements for Durability Evaluation of Precast Concrete Components specifies the index requirements, evaluation methods and conclusion rules for the durability evaluation of precast concrete components, and is applicable to the durability evaluation of precast components in industrial and civil buildings made of ordinary concrete. The release and implementation of the standard will standardize the durability evaluation of precast concrete components, ensure and improve the durability of prefabricated buildings, and contribute to the industrialization of new buildings and the promotion of green buildings.

The standard Water-retaining Admixture for Concrete is applicable to organic concrete water-retaining admixtures and specifies performance requirements, test methods, inspection rules, etc. The release and implementation of the standard will standardize the production of concrete water-retaining admixtures and provide technical basis and standard guarantee for the wide engineering application of this kind of products.