| 粉煤灰混凝土抗冻性能试验研究 |
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| 引用本文： | 程云虹,闫俊,刘斌,赵文.粉煤灰混凝土抗冻性能试验研究[J].低温建筑技术,2008(1):1-3. |
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| 作者姓名： | 程云虹 闫俊 刘斌 赵文 |
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| 作者单位： | 东北大学资源与土木工程学院,辽宁,沈阳,110004 |
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| 摘 要： | 对粉煤灰取代水泥量分别为0,30%,40%,50%,60%的混凝土,进行冻融试验。试验结果表明:粉煤灰取代水泥30%时,其抗冻性能与基准混凝土相当;粉煤灰取代水泥超过30%时,其抗冻性能较基准混凝土差,劣化程度随粉煤灰取代水泥量的增加而增加。
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| 关 键 词： | 粉煤灰 冻融循环 质量损失 相对动弹性模量 |
| 文章编号： | 1001-6864（2008）01-0001-03 |
| 收稿时间： | 2007-10-10 |
| 修稿时间： | 2007年10月10 |
EXPERIMENTAL RESEARCH ON FROST RESISTANCE OF FLY ASH CONCRETE |
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| CHENG Yun-hong,YAN Jun,LIU Bin,ZHAO Wen.EXPERIMENTAL RESEARCH ON FROST RESISTANCE OF FLY ASH CONCRETE[J].Low Temperature Architecture Technology,2008(1):1-3. |
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| Authors: | CHENG Yun-hong YAN Jun LIU Bin ZHAO Wen |
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| Affiliation: | CHENG Yun-hong,YAN Jun,LIU Bin,ZHAO Wen(School of Resources & Civil Engineering,Northeastern University,Shenyang 110004,China) |
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| Abstract: | The repeated freezing and thawing experiments of fly ash concrete were carried out, where cement was replaced by fly ash by 30% ,40%, 50% and 60% respectively. When the substitution ratio of cement is 30% ,the frost resistance of fly ash concrete can match the control concrete without fly ash.When the substitution ratio is higher than 30%, the fly ash concrete is not as frost- resistant as the control concrete. With the substitution ratio of cement increases, the frost resistance of fly ash concrete decreases. |
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| Keywords: | fly ash frezzing and thawing cycle weight loss relative dynamic modulus of elasticity |
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