基于热工理论的保温砌块用砌筑砂浆的热桥分析.pdfVIP

学兔兔 全国中文核心期刊 新 建巍粉 中国科技核心期刊 基子热工理论的保温砌硖 用砌筑砂浆的热桥分析 卢玫瑁 ，郑智峰 ，王春苑 (1．华北水利水电学院 建筑学院，河南 郑州 450046 2．四川1大学 建筑与环境学院，四川I成都 610064) 摘要：加气混凝土保温砌块被广泛用作框架结构填充墙，目前大多采用混合砂浆作为砌筑砂浆。然而相对于主体结构的加气 混凝土而言，混合砂浆导热系数相对较大，因此，灰缝部分就成为加气混凝土保温砌块传热的热桥，这将严重降低填充墙节能效果。 基于热工理论，分别选取混合砂浆和保温砂浆，对加气混凝土砌块的热桥影响进行热工性能分析，保温砌块采用保温砂浆砌筑，将 取得明显的建筑节能效果，该结论与GB 5041l一2OO7健筑节能工程施工质量验收规范》具有一致性。 关键词：热工理论；保温砌块；混合砂浆；保温砂浆；热桥 中图分类号：TU111．19 文献标识码：B 文章编号：1001—702X(2012)ol一0076—03 Analysis on thermal bridge of building mortar in insulation building block in view of thermal theory LU Me~un ，ZHENG Zh ，WANG Chunyuan (1．Institute of Architecture，Noah China University of Water Resources and Electric Power，Zhengzhou 450046，Henan，China； 2．College of Architecture and Environment，Sichuan University，Chengdu 610064，Sichuan，China) Abstract：Aero—concrete insulation building block was extensively used as padding wall of framed building．At present，mixed mortar is mostly adopted as building mortar．But in view of major structure，mixed mortar has relative heat conduction coefficient．Thus， part of lime crack will become thermal bridge problem in heat transmission of aero—concrete insulation building block．Energy efficiency of padding wall will be seriously reduced．In view of thermal theory，mixed and insulation mortar are partly selected，and effect on therm al bridge of aero-concrete insulation building block is analyzed in thermal property．Insulation mortar is used in insulation building block， obvious effect on build