S形断桥式自保温砌块的强度和保温性能研究
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摘要
对S形断桥式自保温砌块进行了传热系数的热工计算,对该自保温砌块砌筑的墙体进行了传热系数的现场测试。热工计算得到的传热系数为0.29 W/(m~2·K),实测值为0.33 W/(m~2·K)。该砌块的抗压强度为5.81 MPa,抗弯强度为1.11 MPa。研究结果表明:S形断桥式自保温砌块符合DB 375026—2014《山东省居住建筑节能设计标准》对外墙传热系数的要求,并且具有较好的力学性能。
Thermal calculation of the heat transfer coefficient is conducted for the S-shape self-insulation block and the heat transfer coefficient of the wall constructed by such block is tested on the spot. Heat transfer coefficient of the wall is 0.33 W/(m~2·K)and the calculated value is 0.29 W/(m~2·K). This block shows the properties of 5.81 MPa compressive strength and 1.11 MPa bending strength. S-shape block meets the requirement of heat transfer coefficient of DB 375026 —2014 "Design standard for energy efficiency of residential buildings in Shandong province" and has good mechanical performance.
Thermal calculation of the heat transfer coefficient is conducted for the S-shape self-insulation block and the heat transfer coefficient of the wall constructed by such block is tested on the spot. Heat transfer coefficient of the wall is 0.33 W/(m~2·K)and the calculated value is 0.29 W/(m~2·K). This block shows the properties of 5.81 MPa compressive strength and 1.11 MPa bending strength. S-shape block meets the requirement of heat transfer coefficient of DB 375026 —2014 "Design standard for energy efficiency of residential buildings in Shandong province" and has good mechanical performance.
引文
[1]马彪,秦鸿根,庞超明.一种复合自保温砌体结构设计与热工计算[J].新型建筑材料,2016(2):12-15.
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[3]王长宝,张茂亮,陈闯,等.陶粒混凝土自保温砌块及其热工性能的研究[J].混凝土,2013(10):145-150.
[4]Bouchair A.Steady state theoretical model of fired clay hollow bricks for enhanced external w all thermal insulation[J].Building and Environment,2008,43(10):1603-1618.
[5]麻建锁,蔡焕琴,白润山,等.复合轻集料混凝土自保温砌块的块型结构设计及性能研究[J].混凝土,2016(5):122-124.
[6]张国永,王立,刘亚辉,等.烧结复合保温砌块热工性能数值模拟研究[J].新型建筑材料,2016(11):40-42.
[7]范军,刘福胜,刘永,等.秸秆纤维混凝土砌块的强度和保温性能试验研究[J].建筑科学,2010,26(8):45-47.
[8]王宏斌,范军,刘福胜,等.夹心秸秆混凝土砌块试点建筑墙体保温性能试验研究[J].新型建筑材料,2013(1):52-54.
[9]吴聪,刘福胜,范军,等.工字型自保温混凝土夹心秸秆砌块墙体热工性能研究[J].混凝土,2015(6):127-130.
[10]DB 375026—2014,山东省居住建筑节能设计标准[S].北京:中国建材工业出版社,2014.
[11]章熙民,任泽霈,梅飞鸣.传热学[M].4版.北京:建筑工业出版社,2001.
[2]郑建三,张高展.炉渣混凝土保温复合砌块的设计与传热性能研究[J].新型建筑材料,2012(5):63-65.
[3]王长宝,张茂亮,陈闯,等.陶粒混凝土自保温砌块及其热工性能的研究[J].混凝土,2013(10):145-150.
[4]Bouchair A.Steady state theoretical model of fired clay hollow bricks for enhanced external w all thermal insulation[J].Building and Environment,2008,43(10):1603-1618.
[5]麻建锁,蔡焕琴,白润山,等.复合轻集料混凝土自保温砌块的块型结构设计及性能研究[J].混凝土,2016(5):122-124.
[6]张国永,王立,刘亚辉,等.烧结复合保温砌块热工性能数值模拟研究[J].新型建筑材料,2016(11):40-42.
[7]范军,刘福胜,刘永,等.秸秆纤维混凝土砌块的强度和保温性能试验研究[J].建筑科学,2010,26(8):45-47.
[8]王宏斌,范军,刘福胜,等.夹心秸秆混凝土砌块试点建筑墙体保温性能试验研究[J].新型建筑材料,2013(1):52-54.
[9]吴聪,刘福胜,范军,等.工字型自保温混凝土夹心秸秆砌块墙体热工性能研究[J].混凝土,2015(6):127-130.
[10]DB 375026—2014,山东省居住建筑节能设计标准[S].北京:中国建材工业出版社,2014.
[11]章熙民,任泽霈,梅飞鸣.传热学[M].4版.北京:建筑工业出版社,2001.