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Effect of Parawood Ash on Drying Shrinkage, Compressive Strength and Microstructural Characterization of Metakaolin-Based Geopolymer Mortar

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Abstract:

Drying shrinkage, compressive strength and microstructural analysis of metakaolin based geopolymers partial replacement with Parawood ash was investigated. It was involved different SiO2/Al2O3 and CaO/SiO2 ratios. Characterization of geopolymer mortar was determined on drying shrinkage, compressive strength, mineral phases and microstructure was analysed by X-ray diffraction and scanning electron microscopy techniques. Test result of highest compressive strength was about 71 MPa at 6-h (4-h in oven at 80oC and 2-h ambient temperature). Voids-cement ratio is the most effect on the unconfined compressive strength of this metakaolin geopolymer mortar.

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Periodical:

Key Engineering Materials (Volumes 594-595)

Pages:

411-415

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.594-595.411

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Online since:

December 2013

Authors:

Danupon Tonnayopas, Abideng Hawa, Woraphot Prachasaree, Pichai Taneerananon

Keywords:

Compressive Strength, Geopolymer Mortar, Metakaolin (MK), Microstructure, Parawood Ash

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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