| 大流动性粉煤灰轻骨料混凝土的工作性 |
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| 引用本文： | 马先伟,杨欢,武双磊. 大流动性粉煤灰轻骨料混凝土的工作性[J]. 平顶山工学院学报, 2014, 0(5): 28-32 |
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| 作者姓名： | 马先伟 杨欢 武双磊 |
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| 作者单位： | 1. 河南城建学院土木工程学院,河南 平顶山,467036
2. 浙江大学材料系,浙江 杭州,310027 |
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| 摘 要： | 为了提高大流动性混凝土的工作性和减轻混凝土对模板的侧压力，用粉煤灰和陶粒分别取代水泥和石子配制轻骨料混凝土，研究其施工性变化。发现采用陶粒部分取代石子可以发挥石子抑制骨料上浮的作用，达到部分轻骨料混凝土工程所需要的强度和表观密度，但是轻骨料混凝土的抗离析性仍需进一步改善。
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| 关 键 词： | 大流动性 粉煤灰 轻骨料 混凝土 工作性 |
Workability of high fluidity fly ash lightweight aggregate concrete |
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| MA Xian-wei,YANG Huan,WU Shuang-lei. Workability of high fluidity fly ash lightweight aggregate concrete[J]. Journal of Pingdingshan Institute of Technology, 2014, 0(5): 28-32 |
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| Authors: | MA Xian-wei YANG Huan WU Shuang-lei |
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| Affiliation: | MA Xian-wei, YANG Huan, WU Shuang-lei ( 1. School of Civil Engineering, Henan University of Urban Construction, Pingdingshan 467036, China ; 2. School of Material Science and Engineering, Zhejiang University, Hangzhou 310027, China) |
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| Abstract: | In order to improve the workability of high fluidity concrete and reduce the pressure of concrete on the template, fly ash and ceramsite were used to replace cement and stones, and their effects on the workabili-ty were analyzed in this paper. It is found that partly replacing stones with ceramsite can inhibit aggregate floating and meet certain lightweight aggregate concrete projects for the strength and apparent density require-ments, but the segregation resistance needs to be improved. |
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| Keywords: | high fluidity fly ash lightweight aggregate concrete workability |
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