Life Cycle Assessment of Expanded Polystyrene Lightweight Concrete Using Traci 2.1 Methodology
John
Denver D. Catapang1* Ryan Ben Sabilala2
Jomari P. de Leon1 Charles Justin D. Angeles1
Ivan
Jay M. Jimenez1 Reden U. Perez1
Cris Pearl G. Rivera1 Christine Joy F. Zapata1
1Department of Civil Engineering,
College of Engineering and Architecture, Bataan
Peninsula
State University-Main Campus, City of Balanga, Bataan, 2100, Philippines
2Technical, Facilities and
Sustainability, Majid Al Futtaim, Dubai, United Arab Emirates
*corresponding
author: jddrcatapang@bpsu.edu.ph
Abstract
In 2021, the United Nations
Environment Programme (UNEP) released a global status report that showed 37% of
the world's annual carbon dioxide (CO2) emissions came from the building
industry. The same report of UNEP in 2018 states that almost 40% of energy-related
CO2 came from the same industry 11% of which is from concrete, this makes
concrete the biggest source of CO2 emissions among all building materials. This
shows how important reducing greenhouse gas emissions from building materials
is, with concrete being one of the most significant contributors, mitigating
environmental emissions of concrete by innovating aggregate replacements such
as Expanded Polystyrene (EPS) has become one of the potential solutions to this
problem. However, there are minimal investigations regarding the life cycle of
EPS Lightweight Concrete (LWC). This paper presents the life cycle assessment
(LCA) of EPS LWC using the Tool for the Reduction and Assessment of Chemical
and Other Environmental Impacts 2.1 methodology along with its comparison
against traditional reinforced concrete, CAB70 LWC, and Polyethylene
Terephthalate (PET) concrete. In this study, tables and graphs revealed
significant differences on the environmental impact values of four different
types of concrete and the result shows that in comparison with traditional
reinforced concrete, EPS LWC contributes a significant change in mitigating
most of the environmental impact categories. However, it is not the same case
with the CAB70 LWC and PET concrete, EPS LWC evidently has higher environmental
impact values but the difference was not as significant as that of against
traditional reinforced concrete.
Keywords: Expanded Polystyrene,
Life Cycle Assessment, EPS Lightweight Concrete, OpenLCA,
TRACI 2.1
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