Magnesia Modification of Alkali-Activated Slag Fly Ash Cement

武汉理工大学学报-材料科学版(英文版), 2011, 26(1): 121-125. doi: 10.1007/s11595-011-0182-8

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan 430070, China;School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

2.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

3.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

4.Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan 430070, China;School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

5.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

6.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

基金项目: the National Basic Research Program of China(2009CB23201) the Open Foundation of National Key Laboratory ot Green Building Materials(CBM-08-KF103)

Magnesia Modification of Alkali-Activated Slag Fly Ash Cement

SHEN Weiguo ^1, , WANG Yiheng ^2, , ZHANG Tao ^3, , ZHOU Mingkai ^4, , LI Jiasheng ^5, , CUI Xiaoyu ^6,

1.Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan 430070, China;School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

2.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

3.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

4.Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan 430070, China;School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

5.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

6.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

Keywords： alkali-activated cement

A new type of magnesia modification alkali-activated cement was prepared, the strength, setting time, shrinkage ratio and cracking behavior, as well as the composition and structure of the hydration product were investigated. The results indicate that the setting time of this cement is similar to that of the ordinary commercial cements; its strength reaches the standard of 42.5 degree cement, its cracking resistance has been remarkably improved because of the micro-aggregate effect of fly ash and shrinkage compensating of magnesia.

参考文献

[1]	沈卫国,蔡智,刘志民,胡金强,王义恒,张涛.浅谈水泥混凝土工业低二氧化碳排放技术[J].新世纪水泥导报,2008(04):1-6.
[2]	A.Palomo;M.W.Grutzeck .Alkali-activated fly ashes A cement for the future[J].Cement and Concrete Research,1999(8):1323-1329.
[3]	Collins F.;Sanjayan J.G. .Cracking tendency of alkali-activated slag concrete subjected to restrained shrinkage[J].Cement and Concrete Research,2000(5):791-798.
[4]	Frank Collins;J.G. Sanjayan .Effect of pore size distribution on drying shrinkage of alkali-activated slag concrete[J].Cement and Concrete Research,2000(9):1401-1406.
[5]	SHEN Weiguo,ZHOU Mingkai,XIAO Liqi,MA Wei,CAI Zhi.Morphology Difference between the Alkali Activated Cement and Portland Cement Paste on Multi-scale[J].武汉理工大学学报（材料科学版）（英文版）,2008(06):923-926.
[6]	Zhen He;Zongjin Li .Influence of alkali on restrained shrinkage behavior of cement-based materials[J].Cement and Concrete Research,2005(3):457-463.
[7]	L.J. Vandeperre;M. Liska;A. Al-Tabbaa .Microstructures of reactive magnesia cement blends[J].Cement & concrete composites,2008(8):706-714.
[8]	M. Liska;A. Al-Tabbaa .Performance of magnesia cements in pressed masonry units with natural aggregates: Production parameters optimisation[J].Construction and Building Materials,2008(8):1789-1797.

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