| 机制砂配制自密实混凝土配合比设计 |
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| 引用本文： | 张强,杨维,许维陆,刘小萤. 机制砂配制自密实混凝土配合比设计[J]. 四川建材, 2013, 0(6): 43-46 |
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| 作者姓名： | 张强 杨维 许维陆 刘小萤 |
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| 作者单位： | 贵州师范大学材料与建筑工程学院,贵州贵阳550014 |
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| 基金项目： | 2012贵州师范大学大学生科研项目 |
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| 摘 要： | 以自密实混凝土应用技术规程[1]为基础,采用先设计后调整的方法研究砂的类别及砂率、用水量、减水剂种类及石子粒径大小对自密实混凝土坍落扩展度,通过V型漏斗的时间,通过U型箱等的工作性能以及7 d和28 d强度的影响,经过实验反复优化,最终配制出机制砂自密实混凝土。
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| 关 键 词： | 机制砂 自密实混凝土 工作性能 配合比设计 |
The mechanism of sand mixture ratio design of self-compacting concrete |
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| ZHANG Qiang,YANG Wei,XU Weilu,LIU Xiaoying. The mechanism of sand mixture ratio design of self-compacting concrete[J]. Sichuan Building Materials, 2013, 0(6): 43-46 |
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| Authors: | ZHANG Qiang YANG Wei XU Weilu LIU Xiaoying |
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| Affiliation: | ( Guizhou normal university, materials and construction engineer-ing college, Guiyang 550014, china) |
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| Abstract: | Based on the technical specification of self -compacted concrete, the effect of the sand type, sand ratio, water content, water reducing agent type and gravel size on the properties of self - compacted concrete are studied, including slump, the time to pass through the V-shaped funnel, the ca-pacity to pass through U-shaped box of all the Work perform-ance, and the 7 days and 28 days strength. The self-compac-ted concrete was designed first and was optimized after several experiments. Then a rational mix proportion for the self-com-pacted concrete using manufactured sand is obtained. |
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| Keywords: | Mechanism of Sand Elf-Compacting Con-crete Work Performance 7 and 28 Days Strength Design ofMix Proportion |
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