Influencing Mechanism of Curing Temperature on Synthesis of Metakaolin-Based Geopolymer

被引：0

作者：

Peng H. ^{[1
,2
]}

Chen Z. ^{[1
]}

Cui C. ^{[1
]}

Zhao J. ^{[1
]}

Cai C. ^{[3
]}

机构：

[1] School of Civil Engineering and Architecture, Changsha University of Science & Technology, Changsha

[2] Key Laboratory of Safety Control of Bridge Engineering of Ministry of Education, Changsha University of Science & Technology, Changsha

[3] Department of Civil and Environmental Engineering, Louisiana State University, Baton Rouge

来源：

Jianzhu Cailiao Xuebao/Journal of Building Materials | 2017年 / 20卷 / 03期

关键词：

Curing temperature; Geopolymer; Geopolymerization; Mechanism; Metakaolin;

D O I：

10.3969/j.issn.1007-9629.2017.03.010

中图分类号：

学科分类号：

摘要：

The mechanical properties of geopolymer samples synthesized by nine kinds of metakaolin under different cuing temperatures were investigated, and microcalorimetry, infrared spectrum (FTIR) and SEM-EDS were employed to study the mechanism of influence of curing temperature on the geopolymer performance. Test results show that increasing curing temperature can promote dissolution and polycondensation of aluminosilicate and thus enhance the mechanical properties of the obtained geopolymer. However, too high curing temperature leads to too fast polymerization, thus the dissolution products will be enclosed by gel generated by polymerization before they can involve in the subsequent reactivity. That results in an uncompleted polymerization reaction and a decrease of compressive strength of geopolymer. © 2017, Editorial Department of Journal of Building Materials. All right reserved.

引用

页码：381 / 386

页数：5

共 14 条

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