In order to quantify the emission reduction effect of sandwich insulation wallboards with different structures,six typical insulation structures are selected,and a carbon assessment model for the full life cycle of exterior walls is established based on Hybrid LCA method.The quantitative analysis shows that the emission reduction effect of sandwich insulation system is obviously better than that of external insulation system.The emission reduction effect of sandwich insulation wallboard with construction waste as insulation core material is obviously superior to other insulation walls.The composite sandwich insulation wallboard has good emission reduction effect,but its thermal insulation performance is reduced.The emission reduction effect of ordinary concrete sandwich insulation wallboard in the physical and chemical stage is better than that of prefabricated fair faced concrete and lightweight aggregate concrete sandwich insulation wallboard.Meanwhile,the advantage of small wall thickness increases the use area of housing,but increases the carbon emissions in the operation stage;The emission reduction effect of prefabricated fair faced concrete and lightweight aggregate concrete sandwich insulation wallboard is not different,but due to the improvement of its insulation performance,it can reduce the energy consumption of building operation.
insulation wallboardcarbon emissionhybrid life cycle assessment
维普
万方数据
