Preparation and Microstructural Analysis of Smelting Waste Non-ferrous Metal Slag Geopolymer

被引：2
|
作者：
Zhao Jing [1 ]
Zhang Yuxuan [1 ]
Zhang Yaowen [2 ]
机构：
[1] Dalian Jiaotong Univ, Sch Civil & Safety Engn, Dalian 116028, Peoples R China
[2] Dalian Jiaotong Univ, Sch Mat Sci & Engn, Dalian 116028, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2017年 / 32卷 / 06期
基金：
中国国家自然科学基金;
关键词：
smelting waste slag of non-ferrous metal; geopolymer; compressive strength; microstructure analysis;
D O I：
10.1007/s11595-017-1757-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The geopolymer samples were prepared with smelting waste slag of non-ferrous metal as the raw material and water glass as the activator. The effect of modulus of water glass and water binder ratio on the compressive strength was studied. The results show that the strength of the geopolymer activated by water glass with modulus of 1.1 and water binder ratio of 0.28 can maintain an increasing trend in the 90 curing days. Through the analyses with XRD, SEM (EDS), and FTIR, the main reaction products are found to be geopolymer gels, which bond the crystalline minerals to provide strength. The molecular chains of amorphous phase in slag become shorter after depolymerization-polycondensation.
引用
收藏
页码：1388 / 1391
页数：4
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