| 粉煤灰、矿粉对水泥浆体变形性能的影响 |
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| 引用本文： | 陈红星,戴惠兰,贾志强,张守治,刘建新,徐文.粉煤灰、矿粉对水泥浆体变形性能的影响[J].混凝土与水泥制品,2021(3):28-31. |
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| 作者姓名： | 陈红星 戴惠兰 贾志强 张守治 刘建新 徐文 |
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| 作者单位： | 悉地(苏州)勘察设计顾问有限公司,江苏 苏州 215101;江苏苏博特新材料股份有限公司,江苏南京211103;东南大学 材料科学与工程学院,江苏 南京211189 |
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| 基金项目： | 国家重点研发计划项目(2017YFB0310100)。 |
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| 摘 要： | 以高性能混凝土用胶凝材料为研究对象,研究了粉煤灰、矿粉在不同养护湿度和温度下对水泥浆体变形性能的影响规律.结果表明:饱水养护时,粉煤灰的掺入降低了水泥浆体的水养膨胀变形;养护温度升高、粉煤灰掺量增加,水泥浆体水养膨胀变形降低幅度增大,但不同水养温度下掺入矿粉对水泥浆体膨胀变形无明显影响;密封养护时,掺入粉煤灰可有效抑制...
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| 关 键 词： | 粉煤灰 矿粉 水泥浆体 变形性能 膨胀 干燥收缩 |
Influence of Fly Ash and Slag on the Deformation Performance of Cement Paste |
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| CHEN Hong-xing,DAI Hui-lan,JIA Zhi-qiang,ZHANG Shou-zhi,LIU Jian-xin,XU Wen.Influence of Fly Ash and Slag on the Deformation Performance of Cement Paste[J].China Concrete and Cement Products,2021(3):28-31. |
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| Authors: | CHEN Hong-xing DAI Hui-lan JIA Zhi-qiang ZHANG Shou-zhi LIU Jian-xin XU Wen |
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| Affiliation: | (CCDI(SuZhou)Exploration&Design Consultant Co.,Ltd.,Suzhou 215101,China;Jiangsu Sobute New Materials Co.,Ltd.,Nanjing 211103,China;School of Materials Science and Engineering,Southeast University,Nanjing211189,China) |
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| Abstract: | Taking the cement material for high performance concrete as the research object,the deformation of cement based materials containing fly ash and slag under different curing humidity and curing temperature was studied.Experimental results show that fly ash reduces expansion deformation of cement paste under saturated condition.When the curing temperature increases,the expansion deformation of the cement paste containing fly ash decreases.However,slag has no effect on the expansion deformation of cement paste whatever under different temperature.Fly ash can reduce the shrinkage of cement paste whatever under sealed condition or under dried condition,but the slag increases the self-shrinkage and drying shrinkage of the cement paste. |
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| Keywords: | Fly ash Slag Cement paste Deformation behavior Expansion Drying shrinkage |
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