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Development of porous fired clay bricks with bio-based additives: Study of the environmental impacts by Life Cycle Assessment (LCA)

Bories, Cécile and Vedrenne, Emeline and Paulhe-Massol, Anne and Vilarem, Gérard and Sablayrolles, Caroline Development of porous fired clay bricks with bio-based additives: Study of the environmental impacts by Life Cycle Assessment (LCA). (2016) Construction and Building Materials, 125. 1142-1151. ISSN 0950-0618

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Official URL: https://doi.org/10.1016/j.conbuildmat.2016.08.042

Abstract

The incorporation of bio-based pore-forming agents, from either agricultural (wheat straw – WS and olive stone flour – OSF) or chemical (glycerol carbonate – GC and dimethyl carbonate – DMC) origins, into clay formulations, has been investigated. Fire clay porous tablets have been manufactured at laboratory scale and characterized through physical, mechanical and thermal properties. An increase of 7.2% of the porosity correlated to a decrease of 7.0% of the thermal conductivity was measured for the best samples. The environmental impacts of these formulations have also been examined through a Life Cycle Assessment (LCA) using the ReCiPe v1.10 method. It was noticed that the incorporation of pore-forming agents led a decrease of about 15–20% of all the studied impact categories. The advantage of the use of bio-based additives in clay bricks was then confirmed from both performance (lighter material with a better thermal insulation) and environmental points of view.

Item Type:Article
HAL Id:hal-02150125
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Arterris (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
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Deposited On:07 Jun 2019 07:10

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