摘   要：基于碳排放系数法，建立了装配式建筑用预制构件碳排放核算方法，研究了单位预制实心墙板、柱、梁、楼梯、叠合楼板、女儿墙、凸窗、空调板等预制构件从生产到运输过程的碳排放情况。结果表明：预制构件碳排放在528~1 008 kgCO₂ /m³；梁、柱碳排放高于其他预制构件，为685~1 008 kgCO₂ /m³；各环节的碳排放从大到小依次为原材料隐含碳排放CY＞原材料运输碳排放CT＞能耗碳排放CS；钢筋和水泥在原材料隐含碳排放中占比较大。

Abstract: Based on the carbon emission coefficient method, a carbon emission accounting method for prefabricated components used in prefabricated buildings was established. The carbon emissions from the production to transportation process of prefabricated solid wall panels, columns, beams, stairs, laminated floor slabs, parapets, bay windows, air conditioning panels and other prefabricated components were studied. The results show that the carbon emissions of prefabricated components range from 528~1 008 kgCO₂ /m3, and the carbon emissions of beams and columns are higher than those of other prefabricated components, ranging from 685~1 008 kgCO₂ /m³. The proportion of each component in the total carbon emissions from highest to lowest is embodied carbon emissions of raw materials (CY) > carbon emissions of raw material transportation(CT) > energy consumption carbon emissions(CS), with steel bars and cement accounting for a relatively large proportion in embodied carbon emissions of raw materials.