Full-life-cycle Carbon Emission Comparison Analysis of Prefabricated and Cast-in-Place Concrete Buildings Based on BIM
HUANG Mingjun
CUI Xiuqin
Abstract：To align with the sustainable development strategy of low-carbon,energy-saving and environmental-friendly in the construction industry,a life-cycle carbon emission equivalence(CO2e)analysis was carried out using PKPM-CES software for prefabricated buildings and cast-in-place concrete buildings within the same residential community in Fujian Province.The analysis covered six stages:building material production,building material transportation,building construction,building operation,building demolition and carbon sink from green plants.The results indicated that prefabricated buildings emitted 354.56 kgCO2e less per unit area compared to cast-in-place concrete buildings.For both types of buildings,the major part of carbon emissions occurred in the building operation stage,accounting for 79.09％(prefabricated)and 84.53％(cast-in-place)of their total life-cycle emissions respectively.The building material production stage was the second-largest emitter,contributing 17.37％and 12.77％respectively.Therefore,prefabricated buildings and cast-in-place concrete buildings should focus on the standardized technological innovation in the building operation and building material production stages.
Keywords：BIMprefabricated buildingscarbon emission
Publication Date：2025-03-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 91-99 )