Preparation and characterisation of fly ash based geopolymer mortars

被引：250
|
作者：
Temuujin, J. [1 ]
van Riessen, A. [1 ]
MacKenzie, K. J. D. [2 ]
机构：
[1] Curtin Univ Technol, Ctr Mat Res, Dept Imaging & Appl Phys, Perth, WA 6845, Australia
[2] Victoria Univ Wellington, Sch Chem & Phys Sci, Wellington, New Zealand
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2010年 / 24卷 / 10期
关键词：
Geopolymer; Fly ash; Mortar; Compressive strength; Bonding;
D O I：
10.1016/j.conbuildmat.2010.04.012
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Geopolymer mortars with varying levels of sand aggregate were prepared and their physical and mechanical properties studied. The geopolymer binder to sand aggregate weight ratio was varied from 9 to 1. Compressive strength and Young's modulus of the fly ash based geopolymer paste were 60 MPa and 2.27 GPa and these values did not change significantly with addition of up to 50 wt.% sand aggregate. Geopolymer binder exhibited strong bonding to the sand aggregate. Increasing sand content without increasing the amount of alkaline activator resulted in a decreasing level of geopolymerisation within the binder system. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1906 / 1910
页数：5
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