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材料导报  2023, Vol. 37 Issue (11): 21100065-5    https://doi.org/10.11896/cldb.21100065
  无机非金属及其复合材料 |
养护温度对矿渣硫铝酸盐水泥水化的影响机理
徐玲琳1,2, 欧阳军1,2, 杨肯1,2, 徐名凤3, 周健3
1 先进土木工程材料教育部重点实验室,上海 201804
2 同济大学材料科学与工程学院,上海 201804
3 河北工业大学土木与交通学院,天津 300401
Impacts of Curing Temperature on the Hydration of Slag-Calcium Sulfoaluminate Cement
XU Linglin1,2, OUYANG Jun1,2, YANG Ken1,2, XU Mingfeng3, ZHOU Jian3
1 Key Laboratory of Advanced Civil Engineering Materials Of Ministry Of Education, Shanghai 201804, China
2 School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
3 School of Civil and Transportation Engineering,Hebei University of Technology,Tianjin 300401, China
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摘要 研究了5 ℃、20 ℃和40 ℃养护下矿渣硫铝酸盐水泥的强度发展、水化放热、干燥收缩、水化产物及孔结构演变。结果表明,不同于硅酸盐水泥,矿渣硫铝酸盐水泥早期水化生成较多钙矾石,但累计放热量较低。养护温度越高,矿渣硫铝酸盐水泥石的早期力学强度越高;但20 ℃下后期抗压强度显著提升,远超过其他温度。相应的,源自小孔内水分蒸发产生的较大孔壁压力,20 ℃下水泥石表现出最显著的收缩行为。
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徐玲琳
欧阳军
杨肯
徐名凤
周健
关键词:  矿渣硫铝酸盐水泥  养护温度  水化机理  孔结构    
Abstract: he compressive strength development, hydration exothermic, drying shrinkage, hydration products and pore structure of slag-calcium sulfoaluminate cement at different temperature (5 ℃, 20 ℃ and 40 ℃) were investigated. The results indicate that, different from Portland cement, the hydration of slag-calcium sulfoaluminate cement accompanies with more ettringite at early hydration stage, but the cumulative heat is lower. Elevated curing temperature results in a higher mechanical strength, but the later compressive strength is significantly higher at 20 ℃, far exceeding that cured at other temperatures. Correspondingly, the cement paste exhibits the most significant shrinkage at 20 ℃, which results from the greater pore wall pressure generated by the evaporation of water from the small pores.
Key words:  slag-calcium sulfoaluminate cement    curing temperature    hydration mechanisms    pore structure
出版日期:  2023-06-10      发布日期:  2023-06-19
ZTFLH:  TU528  
通讯作者:  周健,通信作者,河北工业大学土木与交通学院教授、博士研究生导师。2004年9月在山东大学土建与水利学院获得学士学位,2006年9月和2011年9月在荷兰代尔夫特理工大学土木工程与地球科学学院分别获得硕士学位和博士学位。2017年至今工作于河北工业大学。目前主要从事ECC材料与低碳利废水泥方面的研究,主持国家自然科学基金项目3项、军委科技委国防创新特区项目1项、“十三五”重点研发计划项目子课题1项,发表学术论文50余篇,授权中国发明专利10项,获2020年度河北省技术发明一等奖。   
作者简介:  徐玲琳,工学博士,同济大学副教授,博士研究生导师。2013年9月在同济大学获得工学博士学位(硕博连读),2015年底进入同济大学材料科学与工程学院工作。先后主持了国家自然科学基金、硅酸盐建筑材料国家重点实验室项目、中央高校基本科研业务费专项资金项目(交叉学科)等课题10余项。在Cement and Concrete Research、Cement and Concrete Composites、《硅酸盐学报》等国内外期刊发表论文50余篇,授权专利7项,主编/参编中英文教材多本。
引用本文:    
徐玲琳, 欧阳军, 杨肯, 徐名凤, 周健. 养护温度对矿渣硫铝酸盐水泥水化的影响机理[J]. 材料导报, 2023, 37(11): 21100065-5.
XU Linglin, OUYANG Jun, YANG Ken, XU Mingfeng, ZHOU Jian. Impacts of Curing Temperature on the Hydration of Slag-Calcium Sulfoaluminate Cement. Materials Reports, 2023, 37(11): 21100065-5.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.21100065  或          http://www.mater-rep.com/CN/Y2023/V37/I11/21100065
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