Microstructure and composition of hydration products of ordinary Portland cement with ground steel-making slag

被引：0
作者：
Li Yong-xin
Chen Yi-min
Zhang Hong-tao
He Xing-yang
Wei Jiang-xiong
Zhang Wen-sheng
机构：
[1] China Building Material Academy,Cement Institute
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2003年 / 18卷 / 4期
关键词：
ground steel-making slag; microstructure; composition; hydration products;
D O I：
10.1007/BF02838398
中图分类号：
学科分类号：
摘要：
The effect of ground steel-making slag on microstructure and composition of hydration products of ordinary Portland cement (OPC) was investigated by mercury intrusion porosimetry (MIP), X-ray diffraction (XRD) and differential thermal analysis (DTA). Results show that ground steel-making slag is a kind of high activity mineral additives and it can raise the longer-age strength of OPC mortar. The total porosity and average pore diameter of OPC paste with ground steel-making slag increase with the increase of the amount of ground steel-making slag replacing OPC at various ages, while after 28 days most pores in OPC paste with ground steel-making slag do not influence the strength because the diameter of those pores is in the rang of 20 to 50 nm. The hydration mechanism of ground steel-making slag is similar to that of OPC but different from that of fly ash and blast furnace slag. The hydration products of ground steel-making slag contain quite a lot of Ca(OH)2 in long age.
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页码：76 / 79
页数：3
相关论文
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