| 混凝土密实系数研究 |
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| 引用本文： | 王立久,曹明莉,艾红梅.混凝土密实系数研究[J].混凝土,2002(8):9-11. |
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| 作者姓名： | 王立久 曹明莉 艾红梅 |
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| 作者单位： | 大连理工大学,土木系,辽宁,大连,116024 |
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| 基金项目： | 中国工程建设标准化协会《火灾后建筑结构可靠性鉴定标准》编制基金资助 (98)建标协字第 0 8号 )，冶金部建筑研究院科研基金资助 (990 2 4 ) |
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| 摘 要： | 本研究从紧密堆积及改善新拌混凝土工作性出发，推导出砂率理论公式，进而引出密实系数的概念。通过1432组实验数据确定了密实系数用粗集料最大粒径做其表征的数值；并分析了密实系数对坍落度、最大粒径、集灰比的影响。
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| 关 键 词： | 混凝土 密实系数 砂率 |
| 文章编号： | 1002-3550(2002)08-0009-02 |
Study on the Infilled Aggregate Coefficient in ordinary Concrete |
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| WANG Li jiu,CAO Ming li,AI Hong mei.Study on the Infilled Aggregate Coefficient in ordinary Concrete[J].Concrete,2002(8):9-11. |
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| Authors: | WANG Li jiu CAO Ming li AI Hong mei |
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| Abstract: | In this paper,theory calculation formula on S/A(sand coarse aggregate ratio)about ordinary concrete is established with the infilled aggregate coefficient defined,as.e\-s.and the method of determining infilled aggregate coefficient,which is based on the max diameter of coarse aggregate D\-\{max\},has been verified by 1432 groupsox experiments.Through these experiments,the effecting of e\-s on slump of fresh concrete,D\-\{max\} and total aggregate cement rationn has been discussed sufficiently. |
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| Keywords: | concrete S/A(sand coarse aggregate ratio) infilled aggregate coefficient |
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