4.7 Article

A quantitative assessment of greenhouse gas (GHG) emissions from conventional and modular construction: A case of developing country

期刊

JOURNAL OF CLEANER PRODUCTION
卷 294, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2021.126210

关键词

Sustainability; Greenhouse gas (GHG) emissions; Modular construction; Conventional construction; Embodied GHG emissions; Developing country

向作者/读者索取更多资源

Building construction serves important social and economic purposes, but also has negative environmental impacts. The use of off-site modular construction methods can reduce greenhouse gas emissions, but the environmental performance may vary by region, requiring specific assessment. This study in Pakistan shows that modular construction produces significantly lower GHG emissions compared to conventional methods, indicating the need for widespread adoption to reduce environmental impact.
Building construction serves a vital purpose from a social and economic perspective by meeting the housing needs of society and contributing to the economic growth of a country. However, from an environmental perspective, this sector contributes negatively by releasing tons of greenhouse gas emissions (GHG) in the atmosphere, which consequently gives rise to other environmental hazards such as global warming and ozone depletion. The use of off-site modular construction practices in developed countries is increasing due to its environmental benefits over conventional cast-in-situ method. How-ever, the environmental performance of a construction method may vary across various geographical regions, which is why environmental assessment of construction methods specific to a region is required. This study provides a calculation of GHG emissions in modular and conventional construction methods utilized in Pakistan, considering two single-family single-storey buildings with similar characteristics. The study also provides recommendations to homebuilders for the improvements in low-performance areas in both modular and conventional building methods. The results of the study show that modular building accounts for a total of 3449.73 kgCO(2)-equivalent GHG emissions whereas conventional building resulted in a total of 6501.91 kgCO(2)-equivalent GHG emissions. Modular building results in a reduction of 3052.19 kgCO(2)-equivalent GHG emissions (46.9%) as compared to a conventional site-built building. This implies that the modular construction method is a more environmentally viable option than conventional construction, which needs to be adopted on a large scale to reduce GHG emissions. (C) 2021 Elsevier Ltd. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据