摘要
研究了砂率、粉煤灰掺量对C50混凝土强度、抗Cl-渗透性的影响。结果表明:该混凝土的最佳砂率为45%,粉煤灰掺量为30%时,其56d强度超过了基准混凝土的强度,粉煤灰掺量为40%、50%、60%的混凝土56d强度也达到了C50混凝土强度的要求。砂率为45%的混凝土抗渗性优于砂率为40%、50%的混凝土,且其抗Cl-渗透性比基准混凝土有较大提高。
this paper has studied, the effect of fly-ash content and sand rate on strength and resistance permeating of CL^-
in CSO concrete. The results show that the best sand rate is 45%. Strength of concrete with 30% fly ash on the 56 d higher than standard concrete without fly ash, Strength of concrete with 40% ,50% .60% fly ash on the 56d has the request of C50 concrete, resistance permeating of CL^- in concrete with 45% sand rate better than concrete with 40% ,50%, and concretes of fly ash has raise than Standard concrete without fly ash.
出处
《粉煤灰综合利用》
CAS
2008年第1期11-13,共3页
Fly Ash Comprehensive Utilization
关键词
大掺量粉煤灰
砂率
混凝土强度
抗CL^-渗透性
high volume fly ash
sand rate
strength of concrete
resistance permeating of Cl^-
