The preparation technology, basic mechanical behavior, chloride ion diffusion, steel corrosion behavior and reinforced beam-column mechanical behavior of CASC were studied. The service life of CASC structure was analysed. To provide a low cost, high strength of CASC and its application technology. The results showed that: The fcu of CASC can reach C80. The constitutive equations describing the whole stress-strain curve of CASC under uniaxial compression was suggested. The Cl- diffusion in CASC is characterized by high C0, high Cs and high Da. In order to reduce the risk of steel corrosion, it is recommended to choose: organic new coating steel, thickness of concrete cover at least 5.5 cm, concrete strength should reach C50 and pre-absorption of AA inhibitor. Comprehensively consider the influence of steel corrosion and coated steel slip, the calculation model for the bearing capacity of reinforced CASC beam and column was proposed. The durability design parameters of CASC structures that meet the service life requirements of 50 ~ 100 a were determined.