| 石灰石复合超细矿物掺合料对混凝土工作性和强度影响的研究 |
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| 引用本文： | 刘娟红,文烨,宋少民. 石灰石复合超细矿物掺合料对混凝土工作性和强度影响的研究[J]. 粉煤灰综合利用, 2011, 0(5): 27-30 |
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| 作者姓名： | 刘娟红 文烨 宋少民 |
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| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京,100083
2. 北京建筑工程学院土木与交通工程学院,北京,100044 |
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| 摘 要： | 研究了石灰石复合超细矿物掺合料对混凝土工作性和强度的影响.结果表明:在坍落度相近的情况下,混凝土的用水量随着石灰石粉掺量的增加而降低,石灰石粉可减少混凝土的用水量,降低水胶比,同时也保证了混凝土的工作性；复合矿物掺合料所选用低等级粉煤灰和石灰石粉的比例宜为2:8；当水泥用量为288kg/m3,复合矿物掺合料为192 k...
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| 关 键 词： | 石灰石粉 粉煤灰 混凝土 工作性 强度 |
Research on Influence of Limestone Composite Superfine Mineral Admixture on Workability and Strength of Concrete |
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| Liu Juan-hong,Wen Ye,Song Shao-min. Research on Influence of Limestone Composite Superfine Mineral Admixture on Workability and Strength of Concrete[J]. Fly Ash Comprehensive Utilization, 2011, 0(5): 27-30 |
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| Authors: | Liu Juan-hong Wen Ye Song Shao-min |
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| Affiliation: | Liu Juan-hong,Wen Ye,Song Shao-min(1.Civil and Enviroment Engeering School,University of Science and Technology Beijing.100083,China,2.School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China) |
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| Abstract: | In this paper,the influences of limestone composite superfine mineral admixture on workability and strength of concrete are mainly researched.The results indicate that in the case of similar slump,with the increasing of limestone powder,the water consumption of concrete decreases and the limestone powder can decrease the water consumption of concrete and water-binder ratio,meanwhile,it can ensure the workability of concrete.The optimum ratio of low grade fly ash and limestone powder which composite mineral ... |
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| Keywords: | limestone powder fly ash concrete workability strength |
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