Effect and Microscopic Mechanisms of Slag Micropowder on the Reinforcement of CaCO3 Whisker in Cement Composites


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Whisker pull-out, which indicates that the interfacial bond strength of whiskers/cement is not high enough, is dominant in the microstructure of whisker-reinforced cement fractured surfaces. The weak interfacial bond of whiskers in cement matrix severely restrained the further improvement of properties. Superfine slag powder was used to modify and improve the strength and bond behavior of whisker-reinforced cement. Crystal structures, microcosmic appearances and characterizations of Slag Micro powder and the composite were studied by X-ray diffraction (XRD), and scan electron microscope (SEM/EDS), etc. Effect and mechanisms of different Slag powder content on the micro-structure and macro-properties of cement composite were investigated. The results show that Slag Micropowder can modify and improve the microstructure, interfacial and mechanical properties of whisker-reinforced cement.



Materials Science Forum (Volumes 675-677)

Edited by:

Yi Tan and Dongying Ju






J. Q. Wei and M. L. Cao, "Effect and Microscopic Mechanisms of Slag Micropowder on the Reinforcement of CaCO3 Whisker in Cement Composites", Materials Science Forum, Vols. 675-677, pp. 529-535, 2011

Online since:

February 2011




[1] LIU Hui, ZHANG Changying, YANG Shengwei, etc: Study on the effect of superfine slag powder upon cement. Concrete, Issue 4 (2007), p.52.

[2] FENG Nai-qian: Structure, performance and powder- effect of high performance concrete. China Concrete and Cement Products, Issue 2 (1996), p.6.

[3] Ding Zhu, Zhang Decheng, Shao Hongjiang. Study on the Hydration of Cement Containing Ultra-f ine Slag, Journal of Building Materials, Issue 3 (1998), p.201.

[4] Frank A. Müller, Uwe Gbureck, Toshihiro Kasuga, etc. Whisker-Reinforced Calcium Phosphate Cements. Communications of the American Ceramic Society Vol. 90, Issue 11 (2007), p.3694.

DOI: 10.1111/j.1551-2916.2007.01967.x

[5] R. W. Rice, J. R. Spann, D. Lewis, etc : The Effect of Ceramic Fiber Coatings on the Room-Temperature Mechanical Behavior of Ceramic-Fiber Composites. Ceramic Engineering and Science Proceedings Vol. 5, Issue 7/8 (1984), p.614.

DOI: 10.1002/9780470320228.ch17

[6] D. C. Cranmer. Fiber Coating and Characterization. American Ceramic Society Bulletin, Vol. 68, Issue 9 (1989), p.415.

[7] D. W. Richerson: Modern Ceramic Engineering (Marcel Dekker, New York, 1992).

[8] Yiping Ma, Beirong Zhu, Muhua Tan: Properties of ceramic fiber reinforced cement composites. Cement and Concrete Research, Vol. 35, Issue 2 (2005), p.296.

DOI: 10.1016/j.cemconres.2004.05.017

[9] M. Heikal, H. El-Didamony and M.S. Morsy: Limestone-filled pozzolanic cement. Cement and Concrete Research. Vol. 30, Issue 11 (2000), p.1827.

DOI: 10.1016/s0008-8846(00)00402-6

[10] M. Nehdi: Why some carbonate filler cause rapid increase of viscosity in dispersed cement-based material. Cement and Concrete Research Vol. 30, Issue 10 (2000), p.1663.

DOI: 10.1016/s0008-8846(00)00353-7

[11] A. Kronlöf: Effect of very fine aggregate on concrete strength, material and structure. Cement and Concrete Research Vol. 27, Issue 1 (1994), p.15.

[12] Quanlin Niu, Naiqian Feng, Jing Yang, et al: Effect of superfine slag powder on cement properties , Cement and Concrete Research Vol. 32, Issue 4 (2002), p.615.

DOI: 10.1016/s0008-8846(01)00730-x

[13] Xinghua Fu, Wenping Hou, Chunxia Yang, et al: Studies on Portland cement with large amount of slag, Cement and Concrete Research Vol. 30, Issue 4 (2000), p.645.

DOI: 10.1016/s0008-8846(00)00208-8

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