Geopolymerization of lightweight aggregate waste
authors Soares, P; Pinto, AT; Ferreira, VM; Labrincha, JA
nationality International
journal MATERIALES DE CONSTRUCCION
author keywords geopolymers; alkali activation; lightweight aggregates; recycling
keywords ALKALINE ACTIVATION; FLY ASHES
abstract Geopolymerization is a viable way to process and re-use alumino-silicate industrial waste while producing high-strength, high chemical inertia materials that can effectively immobilize other industrial by-products, and even hazardous waste. In this study industrial waste from different stages of the manufacture of lightweight expanded clay aggregate was characterized for its possible transformation, via alkali activation, to geopolymers. The ultimate aim was to assess the possibility of using such geopolymers to develop thermal and acoustic insulation panels. The containment of hazardous materials is another important application for these new materials. Geopolymers were prepared for this study with different particles size distributions and activator concentrations. Their mechanical properties, composition and microstructure were characterized and a material with promising insulating properties was produced. A preliminary analysis was conducted of the salt formation observed in these geopolymers, the chief drawback to their use.
publisher INST CIENCIAS CONSTRUCCION EDUARDO TORROJA
issn 0465-2746
year published 2008
volume 58
issue 291
beginning page 23
ending page 34
web of science category Construction & Building Technology; Materials Science, Multidisciplinary
subject category Construction & Building Technology; Materials Science
unique article identifier WOS:000259797100003
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  impact metrics
journal analysis (jcr 2019):
journal impact factor 1.456
5 year journal impact factor 1.872
category normalized journal impact factor percentile 30.352
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