Preprint Article Version 1 This version is not peer-reviewed

Comparative Study into the Environmental Impact of Traditional Clay Bricks and Mixed with a Biological Ingredient Using Life Cycle Analysis

Version 1 : Received: 3 July 2018 / Approved: 4 July 2018 / Online: 4 July 2018 (10:27:22 CEST)

A peer-reviewed article of this Preprint also exists.

Lozano-Miralles, J.A.; Hermoso-Orzáez, M.J.; Martínez-García, C.; Rojas-Sola, J.I. Comparative Study on the Environmental Impact of Traditional Clay Bricks Mixed with Organic Waste Using Life Cycle Analysis. Sustainability 2018, 10, 2917. Lozano-Miralles, J.A.; Hermoso-Orzáez, M.J.; Martínez-García, C.; Rojas-Sola, J.I. Comparative Study on the Environmental Impact of Traditional Clay Bricks Mixed with Organic Waste Using Life Cycle Analysis. Sustainability 2018, 10, 2917.

Journal reference: Sustainability 2018, 10, 2917
DOI: 10.3390/su10082917

Abstract

The construction industry is responsible for 40 to 45% of primary energy consumption in Europe alone. Therefore, it is essential to find new materials with a lower environmental impact in order to attain sustainable housing. This study aims to determine and compare the environmental impact of two clay samples forming a basis for the manufacture of traditional brick, a standard material in building construction; traditional red clay brick and a brick based on clay mixed with a biological ingredient.  The samples of fired clay were manufactured at the laboratory scale, the results being valid exclusively as indicators for the extrapolation of the analysis to other studies. The results of the environmental impact of these formulations have been examined through an evaluation of life-cycle analysis (LCA), observing that the incorporation of biological pore forming agents led to a decrease of around 15 to 20% of all impact categories studied. Thus, the suitability of using biological-based additives in clay bricks was confirmed both for their constructive characteristics (lighter material) and increased energy efficiency (better thermal insulation) considering the environmental point of view.

Subject Areas

life-cycle analysis (LCA); sustainable materials; sustainability climate impact; bioclimatic architecture; green buildings

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