DOI: 10.5176/2251-189X_SEES16.9

Authors: Norashikin Razali, Afizah Ayob and Mohd Faiz Muhammad Zaki, Salina Alias and Sara Yasina Yusuf

Abstract: Building construction accounts for roughly 33{6e6090cdd558c53a8bc18225ef4499fead9160abd3419ad4f137e902b483c465} of all greenhouse gas emissions globally. Identifying the sources of these emissions and understanding their relationship to construction tasks is essential in climate change mitigation. This study evaluates the carbon footprint of the machinery used in constructing a five-storey hostel in the state of Perlis, Malaysia. A life cycle assessment (LCA) framework is used in conducting a partial LCA from the gate to the construction site. An inventory of the machinery types, engine rating, duration of usage, and fossil fuel energy utilization of every construction task was used in calculating the primary energy consumption and associated embodied carbon. Results show that the carbon footprint and embodied energy hotspots were centered on the excavator and construction of building superstructure task of 81.59 tons fossil fuel CO2e and 86.76 tons fossil fuel CO2e, respectively, because of the extensive fuel consumption of the excavator for 872-hour usage. To practice effective environmental management, the local authorities and Malaysian government may use the findings of this study as a reference in evaluating the carbon emission of similar projects.

Keywords: Machinery; Carbon footprint; Greenhouse gases; Life cycle assessment; Emissions


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