| 掺大量混合材水泥组分优化与性能研究 |
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| 引用本文： | 高小建,杨英姿,邓红卫.掺大量混合材水泥组分优化与性能研究[J].青岛理工大学学报,2009,30(4):66-69,114. |
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| 作者姓名： | 高小建 杨英姿 邓红卫 |
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| 作者单位： | 哈尔滨工业大学,土木工程学院,哈尔滨,150006 |
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| 基金项目： | 哈尔滨市科技创新人才研究专项资金项目，中国博士后科学基金资助项目 |
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| 摘 要： | 研究了在混磨工艺下,大掺量混合材水泥中粉煤灰、矿渣的优化比例.固定混合材总量为44%和粉磨时间不变,对不同粉煤灰、矿渣用量的水泥颗粒级配和力学强度进行了测试,同时分析了掺混合材对水泥石孔隙结构和微观形貌的影响.结果表明:矿渣掺量占总混合材料用量的27%～34%时,水泥颗粒级配和力学性能最佳.掺配比例合理的大量混合材使水泥石孔隙结构细化,水泥石中大于100 μm的粗孔明显减少或消失,即显著增加了小于0.1 μm的细孔含量;同时可使水泥石微观结构均匀致密,大量层片状聚集的氢氧化钙晶体消失.
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| 关 键 词： | 矿物混合材 复合水泥 配比优化 力学性能 显微结构 |
Proportion Optimization and Performance of Cement with High Volume Content of Mineral Admixture |
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| GAO Xiao-jian,YANG Ying-zi,DENG Hong-wei.Proportion Optimization and Performance of Cement with High Volume Content of Mineral Admixture[J].Journal of Qingdao Technological University,2009,30(4):66-69,114. |
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| Authors: | GAO Xiao-jian YANG Ying-zi DENG Hong-wei |
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| Affiliation: | School of Civil Engineering;Harbin Institute of Technology;Harbin 150006;China |
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| Abstract: | The proportion optimization of fly ash and furnace slag in cement with high volume content of mineral admixture is studied in this paper when all raw materials of cement are ground in only one mill. When the total content of mineral admixture is 44% and the grinding time is kept constant,particle distribution and mechanical strength are studied for cements with different proportions of fly ash and furnace slag and the influence of addition of high content of mineral admixture on pore structure and microstru... |
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| Keywords: | mineral admixture composite cement proportion optimization mechanical performance microstructure |
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