摘要
为了量化不同构造的夹芯保温墙板的减排效果,选取6种典型保温构造,基于Hybrid-LCA法建立外墙全生命周期的碳评价模型。量化分析表明:夹芯保温体系的减排效果明显优于外保温体系。以建筑垃圾为保温芯材的夹芯保温墙板减排效果明显优于其他保温墙体。复合夹芯保温墙板减排效果较好,但保温性能下降。普通混凝土夹芯保温墙板物化阶段减排效果优于预制清水混凝土和轻骨料混凝土夹芯保温墙板,同时墙体厚度小的优势增加了住房使用面积,但增加了运营阶段碳排放;预制清水混凝土与轻骨料混凝土夹芯保温墙板物化阶段减排效果差异不大,但由于其保温性能的提升,可降低建筑物运营能耗。
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.
作者
王怡萍
刘铁
吴艳萍
金超
管小军
杨莉琼(指导)
WANG Yiping;LIU Tie;WU Yanping;JIN Chao;GUAN Xiaojun;YANG Liqiong(School of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China;Ningbo Construction,Ningbo 315000,Zhejiang,China)
出处
《建筑节能（中英文）》
CAS
2024年第1期23-26,共4页
Building Energy Efficiency
基金
宁波市科技计划资助项目(2022T003)。
关键词
保温墙板
碳排放
混合生命周期
insulation wallboard
carbon emission
hybrid life cycle assessment
