关键词: C60自密实混凝土;绝对体积法;氯离子渗透;抗冻性

Abstract: The C60 self-compacting concrete was designed by the absolute volume method.The workability, compressive strength at different age, chloride permeability and frost resistance were studied.The results show that the fluidity of the fresh concrete meets level 2 standard of self compacting concrete.The compressive strengths develop very well after standard curing for 28 d;The 6 h elective flux of the self compacting concrete is very low, proving the excellent chloride penetration resistance.After 200 freeze-thaw cycles ,the loss of the dynamic elastic modulus is 26.05%, smaller than the values in standard, and the mass loss ratio is less than 1.86%, proving the excellent frost-resistance properties.The results provide the references for the application of self compacting concrete.

Key words: C60 self-compacting concrete;absolute volume method;chloride penetration;frost resistance