摘要
泡沫混凝土是一种建筑节能材料,具有轻质、保温隔热、隔声、防火耗能等优异性能。通过对外保温、内保温和自保温围护墙体的热工缺陷、传热性能等进行测试,用建筑传热理论分析各类墙体的传热系数、热惰性指标和技术经济特征值,得出:外保温对热桥的阻隔作用大于内保温,泡沫混凝土自保温墙体室内热环境最好;泡沫混凝土蓄热系数大于EPS保温板,自保温墙体的热稳定性好,抵抗外部温度波动的能力强;泡沫混凝土自保温墙体传热性能良好,技术经济特征量较小,具有一定的市场应用前景。
Foam-concrete was a building energy-saving material with many excellent performances such as lightweight,thermal insulation,sound insulation,fire,power consumption. Through testing the thermal defect and heat transfer performance of external-insulation, internal-insulation and self-insulation retaining walls, and analyzing these walls ＇ heat transfer coefficient, thermal inertia indicator and eigenvalue on technical and economic with the building heat transfer theory,some conclusions are taken that： the external-insulation＇s barrier-effect for thermal-bridges was greater than internal-insulation,and foam-concrete self-insulation wall had the best indoor thermal-environment; foam-concrete＇s regenerative coefficients were greater than EPS insulation board,self-insulation wall had great thermal stability and resistance to external temperature fluctuations; foam-concrete self-insulation wall had good heat transfer performance,smaller eigenvalue on technical and economic which have a better marketing prospects.
出处
《施工技术》
CAS
北大核心
2015年第4期111-115,共5页
Construction Technology
基金
"十二五"国家科技支撑计划课题:保温与结构一体化墙体及屋面材料制造与应用技术研究(2011BAE14B05-02)
关键词
混凝土
自保温墙体
热工性能
传热系数
试验
concrete
self-insulation walls
thermal performance
heat transfer coefficients
experimental
