Comparison and Analysis of Carbon Emissions Generated by Integrated Precast Structure Based on Recycled Aggregate Concrete
To analyze the greenhouse-gas reduction effect of the combination of green techniques(i.e.building assembly and recycled concrete),building materialization process can be divided into three phases of production,transportation,and site construction on basis of life cycle assessment.Thus the calculation model is established,for analyzing carbon emissions in terms of integrated precast structures based on recycled aggregate concrete(IPSRAC),integrated precast structures based on natural aggregate concrete(IPSNAC)and cast-in-place structures based on natural aggregate concrete(CSNAC).The model is exercised for the empirical analysis of a project in Chongqing.The research result shows that from the perspective of the whole materialization process,compared with CSNAC,IPSNAC can reduce 25.94％of carbon emissions per 1m3 of component,while contrasted with IPSNAC,IPSRAC can further reduce 8.22％of carbon emissions per 1m3 of component.The outcome can provide basic data for the analysis of emission reduction and decision making of construction enterprises,and facilitate the integration of building assembly and recycled concrete to a greater degree.
万方数据
维普
