| 水泥-粉煤灰复合浆体中粉煤灰的火山灰反应程度 |
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| 引用本文： | 刘志辉,邵伟,兰祥辉,陆春华,许仲梓.水泥-粉煤灰复合浆体中粉煤灰的火山灰反应程度[J].建筑材料学报,2011,14(2). |
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| 作者姓名： | 刘志辉 邵伟 兰祥辉 陆春华 许仲梓 |
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| 作者单位： | 南京工业大学材料化学工程国家重点实验室,江苏南京,210009 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目 |
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| 摘 要： | 采用选择性溶解法测定了水泥-粉煤灰复合浆体中粉煤灰火山灰反应的程度,探讨了养护温度、养护龄期、水灰比、外界水的影响.结果表明:提高养护温度可以加速复合浆体中粉煤灰的火山灰反应;在给定的养护温度、水灰比条件下,复合浆体中粉煤灰的火山灰反应程度在1～2月后不再随龄期的延长而明显增加;水灰比决定了复合浆体中粉煤灰的最大火山灰反应程度,高水灰比有利于粉煤灰的火山灰反应;外界水对粉煤灰后期参与火山灰反应的程度没有明显的影响.
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| 关 键 词： | 复合浆体 选择性溶解 火山灰反应程度 |
Hydration Degree of Fly Ash in Blended Cement-Fly Ash Paste |
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| LIU Zhi-hui,SHAO Wei,LAN Xiang-hui,LU Chun-hu,XU Zhong-zi.Hydration Degree of Fly Ash in Blended Cement-Fly Ash Paste[J].Journal of Building Materials,2011,14(2). |
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| Authors: | LIU Zhi-hui SHAO Wei LAN Xiang-hui LU Chun-hu XU Zhong-zi |
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| Affiliation: | LIU Zhi-hui,SHAO Wei,LAN Xiang-hui,LU Chun-hua,XU Zhong-zi(State key Laboratory of Materials-Oriented Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | The hydration degree of fly ash in blended cement-fly ash paste was estimated by selective dissolution.The effect of curing temperature,curing time,water-cement ratio(mw/mc),water of external sources on the hydration degree of fly ash in blended cement-fly ash paste was discussed.The results show that the rate of hydration is improved by the raise of curing temperature.The hydration degree of fly ash does not have a remarkable increase after 1-2 months at certain curing temperature and mw/mc.The mw/mc deter... |
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| Keywords: | blended paste selective dissolution hydration degree |
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