| 矿物掺合料对大流动性轻混凝土拌和物性能的影响 |
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| 引用本文： | 王振军.矿物掺合料对大流动性轻混凝土拌和物性能的影响[J].郑州大学学报(工学版),2010,31(2). |
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| 作者姓名： | 王振军 |
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| 作者单位： | 长安大学,材料学院,陕西,西安,710061;西安建筑科技大学,建筑材料研究所,陕西,西安,710055 |
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| 摘 要： | 针对轻混凝土拌和物在大流动性条件下,易于分层而导致工作性不良的现象,采用L-800混凝土拌和物流动性能测定仪,结合混凝土拌和物性能测定方法,研究了粉煤灰和硅灰等矿物掺合料对大流动性轻混凝土(HFLC)拌和物在不同时间间隔时流过40 cm距离的流动时间t(40,T)、坍落度和扩展度等工作性能的影响.结果表明,掺加矿物掺合料是保证HFLC拌和物具有较好性能的关键因素,Ⅰ级粉煤灰和硅灰的最佳掺量分别为水泥总用量的30%和2%.
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| 关 键 词： | 大流动性轻混凝土 矿物掺合料 拌和物 性能 |
Influences of Mineral Admixtures on Performances of High Flowing Lightweight Concrete Mixtures |
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| WANG Zhen-jun.Influences of Mineral Admixtures on Performances of High Flowing Lightweight Concrete Mixtures[J].Journal of Zhengzhou University: Eng Sci,2010,31(2). |
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| Authors: | WANG Zhen-jun |
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| Affiliation: | WANG Zhen-jun1,2 (1.School of Materials Science,Chang\'an University,Xi\'an 710061,China,2.Institute of Building Materials,Xi\'an University of Architecture , Technology,Xi\'an 710055,China) |
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| Abstract: | In view of the phenomena that mixtures of lightweight concrete were prone to be in separation in condition of high fluidity,which resulted in the bad workability of mixtures,a mended L-800 rheological testing apparatus of concrete mixtures and the testing methods of concrete mixtures workability were adopted to study influences of mineral admixtures,fly ash and silicon fume,on workability of the mixtures of high flowing lightweight concreto(HFLC),such as the value of t(40,T),which was the time when concrete... |
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| Keywords: | high flowing lightweight concrete mineral admixture mixture performance |
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