The effect of temperature and duration of curing on the strength of fly ash based geopolymer mortar

被引:122
作者
Adam, Andi Arham [1 ]
Horianto [1 ]
机构
[1] Tadulako Univ, Dept Civil Engn, Palu 94118, Indonesia
来源
2ND INTERNATIONAL CONFERENCE ON SUSTAINABLE CIVIL ENGINEERING STRUCTURES AND CONSTRUCTION MATERIALS | 2014年 / 95卷
关键词
Geopolymer mortar; Fly ash; Alkaline activator; Heat curing; Duration of curing;
D O I
10.1016/j.proeng.2014.12.199
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The optimum temperature and duration of curing is essential in geopolymerization reaction to achieve higher strength. As such, fly ash based geopolymer mortars were prepared by varying the curing temperature of 80, 100 and 120 degrees C, for the duration of 4, 6 and 20 hours. The fly ash was activated by sodium silicate and sodium hydroxide solution. The dosage of activator was 55% and the ratio between sodium silicate and alkaline activator was 1 : 2. The results show that the highest compressive strength was obtained at the temperature and duration of curing of 120 degrees C and 20 hours. (C) 2014 The Authors. Published by Elsevier Ltd.
引用
收藏
页码:410 / 414
页数:5
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