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A predictive environmental assessment method for construction operations: Application to a Northeast China case study
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande. Department of Construction Management, Harbin Institute of Technology, Harbin, 150001, China.ORCID-id: 0000-0002-9310-9093
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.ORCID-id: 0000-0002-4695-5369
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.ORCID-id: 0000-0002-5661-5237
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand. Department of Construction Management, Harbin Institute of Technology, Harbin, 150001, China.
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2018 (engelsk)Inngår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 11, artikkel-id 3868Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Construction accounts for a considerable number of environmental impacts, especially in countries with rapid urbanization. A predictive environmental assessment method enables a comparison of alternatives in construction operations to mitigate these environmental impacts. Process-based life cycle assessment (pLCA), which is the most widely applied environmental assessment method, requires lots of detailed process information to evaluate. However, a construction project usually operates in uncertain and dynamic project environments, and capturing such process information represents a critical challenge for pLCA. Discrete event simulation (DES) provides an opportunity to include uncertainty and capture the dynamic environments of construction operations. This study proposes a predictive assessment method that integrates DES and pLCA (DES-pLCA) to evaluate the environmental impact of on-site construction operations and supply chains. The DES feeds pLCA with process information that considers the uncertain and dynamic environments of construction, while pLCA guides the comprehensive procedure of environmental assessment. A DES-pLCA prototype was developed and implemented in a case study of an 18-storey building in Northeast China. The results showed that the biggest impact variations on the global warming potential (GWP), acidification potential (AP), eutrophication (EP), photochemical ozone creation potential (POCP), abiotic depletion potential (ADP), and human toxicity potential (HTP) were 5.1%, 4.1%, 4.1%, 4.7%, 0.3%, and 5.9%, respectively, due to uncertain and dynamic factors. Based on the proposed method, an average impact reduction can be achieved for these six indictors of 2.5%, 21.7%, 8.2%, 4.8%, 32.5%, and 0.9%, respectively. The method also revealed that the material wastage rate of formwork installation was the most crucial managing factor that influences global warming performance. The method can support contractors in the development and management of environmentally friendly construction operations that consider the effects of uncertainty and dynamics.

sted, utgiver, år, opplag, sider
MDPI, 2018. Vol. 10, nr 11, artikkel-id 3868
Emneord [en]
environmental impacts, construction process simulation, process-based life cycle assessment, construction operations, supply chain
HSV kategori
Forskningsprogram
Konstruktionsteknik; Byggproduktion och teknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-71690DOI: 10.3390/su10113868ISI: 000451531700042Scopus ID: 2-s2.0-85055572047OAI: oai:DiVA.org:ltu-71690DiVA, id: diva2:1264925
Merknad

Validerad;2018;Nivå 2;2018-11-21 (jochin) 

Tilgjengelig fra: 2018-11-21 Laget: 2018-11-21 Sist oppdatert: 2019-02-27bibliografisk kontrollert

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