| 大流动性轻集料混凝土研究 |
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| 引用本文： | 吴芳,吴岳新.大流动性轻集料混凝土研究[J].土木与环境工程学报,2002,24(3):91-95. |
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| 作者姓名： | 吴芳 吴岳新 |
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| 作者单位： | 1. 重庆大学,材料科学与工程学院建材系,重庆,400045
2. 湖南岳阳路桥总公司,岳阳,414000 |
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| 摘 要： | 研究了粉煤灰、矿渣、硅灰掺合料对大流动性轻集料混凝土性能的影响。试验结果表明，掺合料单掺效果不及复掺；用堆积密度为503kg/m^3，筒压强度为3．08MPa的页岩陶粒，复合掺入20％的磨细粉煤灰和20％的磨细矿渣，可配制出塌落度267mm、扩展度650mm,28d强度为28．8MPa，表观密度为1804kg/m^3的免振捣大流动性轻集料混凝土；轻集料的物理力学对大流动性轻集料混凝土的性能有重要影响。
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| 关 键 词： | 流动性 轻集料混凝土 掺合料 |
| 文章编号： | 1006-7329(2002)03-0091-05 |
A Study on Lightweight Aggregate Concrete with High Fluidity |
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| WU Fang,WU Yue-xin.A Study on Lightweight Aggregate Concrete with High Fluidity[J].Journal of Civil and Environmental Engineering,2002,24(3):91-95. |
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| Authors: | WU Fang WU Yue-xin |
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| Abstract: | In this paper, the influence of fly ash (FA), blast furnace slag (BS) and silica fume (SF) on the properties of lightweight aggregate concrete (LAC) with high fluidity were studied. Results show that in LAC the effects of composite additives are better than that of single additive. The slump of LAC with apparent density of 1 840 kg/m 3 could reach 267 mm and the spread 650 mm. The 28d strength is 28.8 MPa for LAC with 20% ground FA and 20% BS as additives and the shale ceramsite with bulk density of 503 kg/m 3 and crushing strength 3.1 MPa was used as aggregate. Physical properties of lightweight aggregate have significant effects on durability of the flowing LAC. |
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| Keywords: | fluidity lightweight aggregate concrete additive |
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