Utilize este identificador para referenciar este registo: http://hdl.handle.net/10773/20520
Título: Porous biomass fly ash-based geopolymers with tailored thermal conductivity
Autor: Novais, Rui M.
Buruberri, L. H.
Ascensao, G.
Seabra, M. P.
Labrincha, J. A.
Palavras-chave: METAKAOLIN-BASED GEOPOLYMERS
RED MUD
CHEMICAL-COMPOSITION
ENERGY-CONSUMPTION
SODIUM-HYDROXIDE
CO2 EMISSIONS
COST-ANALYSIS
PART 1.
MICROSTRUCTURE
WASTE
Data: 2016
Editora: ELSEVIER SCI LTD
Resumo: In this work novel, porous biomass fly ash-based-geopolymers were produced by using hydrogen peroxide as pore forming agent. This innovative material can help to mitigate the energy losses inside buildings, while simultaneously reducing the volume of generated wastes, thus contributing towards sustainable construction. Results demonstrate that the content of hydrogen peroxide controls the geopolymer physical properties such as porosity, mechanical resistance and thermal conductivity. The latter allows the production of geopolymers displaying suitable properties for thermal insulation applications. Geopolymers exhibiting thermal conductivity as low as 0.107 W/m K and a density of 560 kg/m(3) were produced, showing the potential of these materials in applications requiring lightweight and low thermal conductivity materials. Besides this material is produced using a simple and cost effective approach, promoting waste valorization by reuse of biomass fly ash, which further demonstrates its potential. (C) 2016 Elsevier Ltd. All rights reserved.
Peer review: yes
URI: http://hdl.handle.net/10773/20520
DOI: 10.1016/j.jclepro.2016.01.083
ISSN: 0959-6526
Versão do Editor: 10.1016/j.jclepro.2016.01.083
Aparece nas coleções: CICECO - Artigos

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