| 粉煤灰和砂率对C50混凝土强度及抗CL^-渗透性研究 |
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| 引用本文： | 张景华,刘娟红,颜岳,田莉梅.粉煤灰和砂率对C50混凝土强度及抗CL^-渗透性研究[J].粉煤灰综合利用,2008(1):11-13. |
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| 作者姓名： | 张景华 刘娟红 颜岳 田莉梅 |
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| 作者单位： | 北京科技大学土木与环境学院,北京,100083 |
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| 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。
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| 关 键 词： | 大掺量粉煤灰 砂率 混凝土强度 抗CL^-渗透性 |
| 文章编号： | 1005-8249(2008)01-0011-03 |
| 修稿时间： | 2007年5月16日 |
Study of Fly-ash and Sand Rate on C50 Concrete Strength and Resistance Permeating of CL- |
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| Affiliation: | ( Institute of Civil Engineering and Environmental Project, Beijing University of Science and Technology, Beijing 100083) |
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| Abstract: | 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. |
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| Keywords: | high volume fly ash sand rate strength of concrete resistance permeating of Cl^- |
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