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Interceram - International Ceramic Review

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01-06-2018 | Applications and Engineering

Fly Ash Containing Alkali Activated Geopolymer Concrete: Effect of the Na₂SiO₃:NaOH Ratio and Temperature

Authors: Dr. Ritwik Sarkar, S. P. Routray

Published in: Interceram - International Ceramic Review | Issue 3/2018

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Abstract

Geopolymer concrete was prepared using stone chips of various sizes, sand and fly ash, without using any cement. Na₂SiO₃ and NaOH solutions with three different ratios were used as the alkaline activator for the geopolymer system, and the compositions were studied for density, strength and phase evaluation after ageing and heat treatment at different temperatures up to 90 °C. Sodium aluminium silicate hydrate phase was found to be formed in the compositions as the reaction product of geopolymerization process and is responsible for the strength and density development. The reduction in the hydrated phase content at higher temperatures results in the reduction of density and strength values.

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Title: Fly Ash Containing Alkali Activated Geopolymer Concrete: Effect of the Na2SiO3:NaOH Ratio and Temperature
Authors: Dr. Ritwik Sarkar
S. P. Routray
Publication date: 01-06-2018
Publisher: Springer Fachmedien Wiesbaden
Published in: Interceram - International Ceramic Review / Issue 3/2018
Print ISSN: 0020-5214
Electronic ISSN: 2523-8957
DOI: https://doi.org/10.1007/s42411-018-0014-3

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