| 含不同矿物掺合料的高强混凝土的自收缩特性 |
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| 引用本文： | 阎培渝,陈志城.含不同矿物掺合料的高强混凝土的自收缩特性[J].工业建筑,2011,41(6):124-127. |
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| 作者姓名： | 阎培渝 陈志城 |
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| 作者单位： | 清华大学土木工程系,北京,100084 |
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| 基金项目： | 国家重点基础研究发展计划 |
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| 摘 要： | 对比研究纯水泥及含不同矿物掺合料(粉煤灰、石灰石粉、磨细矿渣粉)的高强混凝土早期(7 d以内)自收缩发展规律.结果表明:粉煤灰混凝土与石灰石粉混凝土的自收缩表现出相同的规律,均随粉煤灰或石灰石粉掺量的增加而呈准线性递减,且两者自收缩的大小也几乎相同;矿渣粉混凝土的自收缩在较早龄期随矿渣粉掺量增加而降低的幅度较粉煤灰和石...
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| 关 键 词： | 混凝土 自收缩 粉煤灰 石灰石粉 矿渣粉 |
THE AUTOGENOUS SHRINKAGE OF CONCRETES PREPARED WITH THE BINDERS CONTAINING DIFFERENT KINDS OF MINERAL ADMIXTURE |
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| Yan Peiyu,Chen Zhicheng.THE AUTOGENOUS SHRINKAGE OF CONCRETES PREPARED WITH THE BINDERS CONTAINING DIFFERENT KINDS OF MINERAL ADMIXTURE[J].Industrial Construction,2011,41(6):124-127. |
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| Authors: | Yan Peiyu Chen Zhicheng |
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| Affiliation: | Yan Peiyu Chen Zhicheng(Department of Civil Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The autogenous shrinkage of concrete containing various amounts of mineral admixtures,namely fly ash,limestone powder and ground blast furnace slag was investigated under the condition of various water binder ratios.The test results indicate that autogenous shrinkage of concrete nearly reduces in proportion to adding percentage of fly ash and limestone powder,while considerably decreases at initial hydrating period for the concrete containing ground granular blast-furnace slag.The autogenous shrinkage of concrete containing ground granular blast-furnace slag increases obviously with the age,especially in the case of high adding percentage of ground granular blast-furnace slag. |
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| Keywords: | concrete autogenous shrinkage fly ash limestone powder blast furnace slag powder |
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