Environmental impact evaluation on interlocking compressed earth brick using life cycle assessment

Nurul Shahadahtul Afizah Asman and Nurmin Bolong and Abdul Karim Mirasa (2023) Environmental impact evaluation on interlocking compressed earth brick using life cycle assessment. International Journal of GEOMATE, 25. pp. 9-15. ISSN 2186-2982

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URL: https://geomatejournal.com/geomate/article/view/35...

Abstract

Interlocking Compressed Earth Bricks (ICEB) is one of the alternative low carbon building materials replacing conventional brick. This study evaluates the embodied environmental impact of ICEB production in terms of embodied environmental implications for global warming potential (GWP). The life cycle assessment (LCA) analysis methodology was performed to identify and quantify the environmental performance of brick production from cradle-to-gate. Additionally, the emission in terms of GWP is analyzed using GaBi software. The system investigated includes raw materials and machinery used for brick production and transportation. Energy use and emissions are quantified, and the potential environmental effects are assessed. Sensitivity analyses were calculated on the percentage of cement content of 15% and 10% of the soil weight. The results show that the embodied carbon for 1 kg clay bricks in Sabah is 0.202 kgCO2-eq. Cement usage in brick production contributes the most significant environmental impact with carbon emissions of 0.172 kgCO2. The carbon emission of ICEB found a slight improvement compared to the conventional fired clay bricks (FCB). The result on sensitivity analyses found that the GWP reduced to 27-51% as the percentage of cement content was reduced at 10 and 15%. The findings proved that carbon emissions could be reduced with a lower cement usage in the mix design of ICEB.

Item Type:	Article
Keyword:	Interlocking Compressed Earth Brick, Environmental Impact, Carbon Emission, Global Warming Potential, Life Cycle Assessment
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD1-1066 Environmental technology. Sanitary engineering
Department:	FACULTY > Faculty of Engineering
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	31 Jan 2024 15:23
Last Modified:	31 Jan 2024 15:23
URI:	https://eprints.ums.edu.my/id/eprint/38087

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