Effect of mechanical activation of fly ash on the properties of geopolymer cured at ambient temperature

被引:370
作者
Temuujin, J. [1 ]
Williams, R. P. [1 ]
van Riessen, A. [1 ]
机构
[1] Curtin Univ Technol, Dept Imaging & Appl Phys, Ctr Mat Res, Perth, WA 6845, Australia
关键词
Fly ash; Mechanical activation; Curing; Geopolymer; Mechanical properties;
D O I
10.1016/j.jmatprotec.2009.03.016
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of the mechanical activation of fly ash on the properties of the geopolymers cured at ambient temperature has been studied. Mechanical activation of the fly ash results in particle size and morphology changes with concomitant increase in reactivity with alkaline liquid. Addition of free water in the reaction mix decreases mechanical properties of the geopolymer samples. After 28 days, compressive strength of the room temperature cured samples was 16 (2)MPa and 45 (8)MPa for unmilled and mechanically activated fly ash based samples. respectively. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:5276 / 5280
页数:5
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