Effect of Mechanical Activation on Properties of Alkali Activated Binders

Sisol, Martin; Mosej, Juraj; Drabova, M.; Brezani, I.

doi:10.4028/www.scientific.net/amr.1000.67

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…Investigated FAs have very different chemical and mineralogical composition therefore each type of FA was activated by alkaline solution with different composition (Na 2 O content, SiO 2 ‐to‐Na 2 O molar ratio and water content). Composition of alkaline activator for particular type of FA was selected to obtain optimum conditions of geopolymer, based on previous research .…”

Section: Methodsmentioning

confidence: 99%

Influence of mechanical activation of fly ash on the properties of geopolymers investigated by XPS method

Kaňuchová

Drabova²,

Sisol

et al. 2016

Env Prog and Sustain Energy

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Geopolymer materials are obtained by the alkaline activation of alumina-silicate sources, the best of which is metakaolin. The aim of this work is to develop methods for working properties prediction of geopolymer materials based on the starting materials-not only metakaolin. The formation of geopolymers from four types of fly ash samples (FA) from Slovakia derived from various combustion processes was investigated. Chemical bond changes during mechanical activation were examined by X-ray photoelectron spectroscopy (XPS). Formation of new Al-O-Si chemical bonds was detected by the changes in positions of Al and Si atoms during milling. Final mechanical strength achieved by mechanical activation was studied.

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Section: Methodsmentioning

confidence: 99%