Study of properties on fly ash-slag complex cement

被引：56

作者：

Li, DX ^{[1
]}

Shen, JL

Chen, YM

Cheng, L

Wu, XQ

机构：

[1] Nanjing Univ Chem Technol, Dept Mat Sci Engn, Mat Acad, Nanjing 210009, Jiangsu, Peoples R China

[2] Zhejiang Univ, Mat & Chem Engn Acad, Hangzhou 310027, Peoples R China

[3] China Bldg Mat Acad, Beijing 100024, Peoples R China

来源：

CEMENT AND CONCRETE RESEARCH | 2000年 / 30卷 / 09期

关键词：

fly ash-slag complex cement; pore structure; median pore radius; hydration degree;

D O I：

10.1016/S0008-8846(00)00360-4

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In China, blast furnace slag (BFS) has been widely used as an additive to cement and concrete. So it is almost completely utilized. Therefore, the cost of BFS is higher, so the cement expense is going to increase. Therefore, it is necessary to partially replace BFS with fly ash, which has lower cost and therefore has not been used in large quantity. This paper studies the mechanical properties, hydration degree, pore distribution and hydrates of fly ash-slag complex cement (FSCC) by strength and other physical mechanical tests, XRD, TGA and pore structure analysis. Test results show that there were better properties when fly ash was added in a proper ratio. It is called an effect of mutual complement of superiority supplement. In addition to this, the admixtures speed up the hydration of complex cement and improve the strength and pore structure properties. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1381 / 1387

页数：7

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