文章基本信息

标题：High Strength Geopolymers Produced from Coal Combustion Fly Ash
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作者：Nugteren H.W ; Butselaar-Orthlieb V.C.L ; Izquierdo M. 等
期刊名称：Global Nest
印刷版ISSN：1790-7632
电子版ISSN：2241-777X
出版年度：2009
卷号：11
期号：2
页码：155-161
DOI：10.30955/gnj.000593
出版社：Global Nest
摘要：High strength geopolymers were produced from coal combustion fly ashes. These matrices reached compressive strength values over 100 MPa, much stronger and denser than obtained by using Portland Cement binders. Size fractions were obtained by size separation techniques and the relationship between strength and particle size was investigated. The differences in compressive strength measured in the geopolymers made from fine fractions, the original fly ash and a coarse fraction of the same ash, were not significantly higher than the variation found for a reference geopolymer material. Therefore, a direct size-strength relationship could not be proven. Moreover, the chemistry and the pH of the fractions also varied, and this might as well has played a role in the strength development.
关键词：fly ash; geopolymer; compressive strength; workability; particle size