| 低碱"沙琪玛骨架"混凝土配比试验研究 |
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| 引用本文： | 蒋晓峰,陈有亮,罗仁安. 低碱"沙琪玛骨架"混凝土配比试验研究[J]. 混凝土, 2006, 0(11): 7-9 |
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| 作者姓名： | 蒋晓峰 陈有亮 罗仁安 |
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| 作者单位： | 1. 上海大学,土木工程系,上海,200072
2. 上海市应用数学与力学研究所,上海,200444 |
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| 基金项目： | 上海市教委资助项目;上海市重点学科建设项目 |
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| 摘 要： | 以“沙琪玛骨架”混凝土的水灰比、灰骨比、减水剂掺量及水泥粉煤灰比例作为正交试验考察因素，通过考察四因素对混凝土7.14和28d的无侧限抗压强度和酸碱度的影响及对极差R的分析，得到四因素对强度和酸碱度影响的强弱关系；试验结果也说明在粉煤灰掺量在30%-50%时“沙琪玛骨架”混凝土pH值可降至12以下，符合低碱要求。“沙琪玛骨架”混凝土孔隙率一般在44％～48％之间，容重是普通建筑石料制成的大孔混凝土的50％～60％。
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| 关 键 词： | 沙琪玛骨架 生态混凝土 粉煤灰 正交试验 酸碱度 |
| 文章编号： | 1002-3550-（2006）11-0007-03 |
| 收稿时间： | 2006-08-14 |
| 修稿时间： | 2006-08-14 |
Experimental study on the proportion of low alkaline "shaqima framework" concrete |
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| JIANG Xiao-feng,CHENG You-liang,LUO Ren-an. Experimental study on the proportion of low alkaline "shaqima framework" concrete[J]. Concrete, 2006, 0(11): 7-9 |
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| Authors: | JIANG Xiao-feng CHENG You-liang LUO Ren-an |
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| Affiliation: | 1 .Department of Civil Engineering, Shanghai University, Shanghai 200072, China; 2.Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China |
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| Abstract: | Through analyzing the concrete's 7,14,28d unconfined compression strength,pH value and R value,"Shaqima framework" concrete's orthogonal experiment is designed to obtain the effect of four considering factors including water-binder ratio,binder-aggregate,water reducing agent cement-fly ash ratio on the compressive strength and pH value.Experimental result also shows 30%~50% fly ash content could reduce the "Shaqima framework" concrete's pH value to 12 even lower.The porosity of "Shaqima framework" concrete is between 44%~48% and the bulk density is 50%~60% weight of concrete made from ordinary aggregate. |
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| Keywords: | Shaqima framework ecological concrete fly ash orthogonal experiment pH value |
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