【摘要】 建筑材料CO₂排放是建筑碳排放的重要组成部分。利用生命周期评价理论,将建筑材料生命周期进行了划分,总结出了建筑材料生命周期碳排放的核算模型。利用该核算模型,对天津市38栋住宅的建筑材料生命周期碳排放量进行了计算,并对计算结果进行了分析。发现住宅建筑的单位面积建筑材料碳排放平均值为366. 70 kgCO₂/m²,其中,钢材、混凝土和砂浆的碳排放量可占80%以上;住宅建筑的建筑面积、标准层面积和层数等参数均与其单位面积碳排放量有着较好的正相关性。之后,分别以建筑面积、标准层面积及层数为自变量,通过统计学方法构建了建筑材料生命周期碳排放的预测模型,并验证了各预测模型的科学性和准确性。更多还原

【Abstract】 CO₂ emissions from building materials are important part of building life cycle carbon emissions. Based on LCA theory,the life cycle of building materials was divided into following stages:production,transportation,repair,demolition and processing. And a quantitative life cycle CO₂ emission accounting model was established. Based on this accounting model,life cycle carbon emissions of building materials from 38 residential buildings in Tianjin were calculated（ at an average value of 366. 70 kg CO₂/m²）.The results show that carbon emissions from steel,concrete and mortar could account for more than 80%of the total; parameters such as construction area,standard layer area and building layers all show good positive correlation with carbon emissions. Based on the statistical method,prediction models of carbon emissions of building materials were constructed by using construction area,standard layer area and building layers as independent variables respectively,then the accuracy of those prediction models are verified.更多还原