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研究了C70自密实混凝土的工作性、力学性能及耐久性能,对抗渗、抗冻、氯离子扩散系数进行了试验研究。结果表明,本研究所配制的C70自密实混凝土符合自密实混凝土的工作性要求,力学性能满足设计要求,抗渗等级大于P12,抗冻性能良好,28 d龄期的氯离子扩散系数为1.30×10~(-8) cm~2·s~(-1)。
The workability, mechanical property and durability of C70 self-compacting concrete were studied. The infiltration resistance, frost resistance and chloride ion diffusion coefficient were studied. The results show that the C70 self-compacting concrete prepared in this study conforms to the working requirements of self-compacting concrete, the mechanical properties meet the design requirements, the impermeability level is greater than P12, the frost resistance is good, the chloride diffusion coefficient at 28 d age is 1.30 × 10 ~ (-8) cm ~ 2 · s ~ (-1).