Factors affecting the shrinkage of fly ash geopolymers

被引：0

作者：

Charoenchai Ridtirud ^{[1
]}

Prinya Chindaprasirt ^{[1
]}

Kedsarin Pimraksa ^{[2
]}

机构：

[1] Sustainable Infrastructure Research and Development Center,Department of Civil Engineering,Faculty of Engineering,Khon Kaen University

[2] Department of Industrial Chemistry,Faculty of Sciences,Chiang Mai University

来源：

International Journal of Minerals Metallurgy and Materials | 2011年 / 18卷 / 01期

关键词：

fly ash; inorganic polymers; shrinkage; compressive strength;

D O I：

暂无

中图分类号：

TB324 [高分子材料];

学科分类号：

070305 ;

摘要：

The shrinkage of fly ash geopolymers was studied in the present study.Fly ash was used as the source material for making the geopolymers.The effects of the concentration of NaOH,sodium silicate-to-NaOH ratio,liquid-to-ash ratio,curing temperature,and curing time on shrinkage were investigated.The geopolymers were cured at 25,40,and 60℃,respectively.The results indicate that the shrinkage of geopolymers is strongly dependent on curing temperature and liquid-to-ash ratio.The increase in shrinkage is associated with the low strength development of geopolymers.It is also found that NaOH concentration and sodium silicate-to-NaOH ratio also affect the shrinkage of geopolymers but to a lesser extent.

引用

页码：100 / 104

页数：5

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