辅助胶凝材料装配式构件环境影响计量研究

Research on Environmental Impact Assessment for Precast Concrete Components with Supplementary Cementitious Materials

为降低混凝土的负面环境影响,辅助胶凝材料混凝土应运而生。然而,在装配式建筑领域,鲜有研究对辅助胶凝材料混凝土应用的可行性和表现,导致装配式混凝土相关企业难以应用辅助胶凝材料混凝土,阻碍了辅助胶凝材料混凝土的推广应用,不利于我国建筑业的绿色转型。为此,结合混凝土材料特性数据和生命周期评价方法,提出CMCD-LCA方法,并将该方法应用于工程案例。结果表明,该方法能够有效地计量辅助胶凝材料混凝土装配式构件从摇篮到拆除的环境影响,可为施工方应用辅助胶凝材料混凝土提供决策辅助。同时,为在装配式建筑中应用辅助胶凝材料混凝土的相关研究提供了理论基础和参考。

As the main material consumed by the construction industry in China,concrete has brought great negative impact to the environment.The emergence of supplementary cementitious material(SCM)concrete provides a feasible way to reduce the negative environmental impact of concrete.However,there is still a lack of research exploring the application of SCM concrete in prefabricated construction,which hinders the sustainable development of China's construction industry.Therefore,this research combines concrete material characteristic data and life cycle assessment methods to establish a CMCD-LCA method,and applies this method to actual construction cases.The results indicate that the established method can effectively measure the environmental impact of SCM concrete prefabricated components from cradle to demolition and provide decision-support for the contractors and precast concrete component producers to apply SCM concrete.This research provides guidance for future related research.