| 粗集料骨架结构的高强混凝土工作性研究 |
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| 引用本文： | 田尔布,刘奋醒,张仁巍.粗集料骨架结构的高强混凝土工作性研究[J].公路,2011(10):162-165. |
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| 作者姓名： | 田尔布 刘奋醒 张仁巍 |
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| 作者单位： | 1. 三明学院 三明市365004;福州大学 福州市 350002
2. 三明学院 三明市365004 |
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| 基金项目： | 三明学院服务海西建设重点项目,项目编号HX2008-02 |
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| 摘 要： | 人们常掺加高效减水剂和能够提高强度的掺合物(如钢渣、矿渣等)来提高混凝土密实度,而很少从粗集料角度人手提高混凝土强度.综合多种级配理念,选取骨架结构粗集料级配,运用均匀设计法进行高强度混凝土工作性试验,回归分析试验结果.通过试验结果分析可知,均匀设计安排试验可以大量减少试验工作量;坍落度随水灰比、砂率的增大呈线性增大,...
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| 关 键 词： | 水泥混凝土 粗集料 级配 工作性 均匀设计 |
A Study on Workability Test of High Strength Concrete with Coarse Aggregate Skeleton Structure |
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| TIAN Er-bu,LIU Fen-xing,ZHANG Ren-wei.A Study on Workability Test of High Strength Concrete with Coarse Aggregate Skeleton Structure[J].Highway,2011(10):162-165. |
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| Authors: | TIAN Er-bu LIU Fen-xing ZHANG Ren-wei |
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| Institution: | TIAN Er-bu1,LIU Fen-xing1,ZHANG Ren-wei1(1.Sanming University,Sanming 365004,China,2.Fuzhou University,Fuzhou 350002,China) |
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| Abstract: | People often use superplasticizer and mineral admixtures(such as steel slag,slag,etc.) to increase the density of concrete and improve concrete strength,but don't use coarse aggregate gradding.The coarse aggregate of skeleton structure is selected from several grading concept,and Uniform Design is used to test high strength concrete workability,and the results are analysed.It is shown from the results that the method of Uniform Design can significantly reduce the workload,and concrete mixture slump increase... |
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| Keywords: | cement concrete coarse aggregate gradation workability Uniform Design |
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