Carbon emission modeling and analysis of building materialization process

The environmental properties of building assembly and recycled concrete are becoming highly related to the theme of the construction industry developments. Therefore, in order to account for the reduction effect of greenhouse gas arising from the combination of such two techniques, the building materialization process is divided into fabrication stage, transport stage, and site operation stage, and the calculation model for the assembled monolithic recycled concrete structures, ordinary assembled monolithic concrete structures, and cast-in-place concrete structures is established. Analyses and comparisons on the cases in Chongqing can be conducted owing to the model. The research results show that from the perspective of the entire materialization process, OAMCS can save 25.94% of carbon emissions compared to CCS per cubic meter of components, while AMRCS can further save 8.5% of carbon emissions compared to OAMCS per cubic meter of components, which can provide basic data for emission reduction and facilitate integration of the two techniques.