Influence of sand on the mechanical properties of metakaolin geopolymers

作者: C. Kuenzel , L. Li , L. Vandeperre , A.R. Boccaccini , C.R. Cheeseman

DOI: 10.1016/J.CONBUILDMAT.2014.05.058

关键词: Composite materialMaterials scienceGeopolymerShrinkageWater contentRheologyMetakaolinCrackingViscosityMortar

摘要: Abstract Metakaolin geopolymers require a high water content to have appropriate rheology for use in some applications and these mixes exhibit extensive drying shrinkage cracking. This work aimed understand the effect of adding sand as inert filler metakaolin geopolymers. It is found that viscosity increases with addition mortars become unworkable when more than 40 vol% added. Linear was reduced from about 8% absence less 1% 38 vol% addition. Moreover, geopolymer containing 15 vol% can withstand at 110 °C without Because reduction it possible formulate flow but do not crack on materials potential range architectural restoration applications.

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