粉煤灰陶粒轻骨料混凝土导热系数的研究  

Study on Thermal Conductivity of Fly Ash Ceramsite Lightweight Aggregate Concrete

作　　者：李瑞[1,2,3] 孟云芳 LI Rui;MENG Yunfang(School of Mechanical Engineering,Ningxia University,Yinchuan 750021,China;Engineering and Technology Research Center of Water-Saving Irrigation and Water Resource Regulation in Ningxia,Yinchuan 750021,China;Engineering Research Center for Effective Utilization of Modern Agricultural Water Resources in Arid Regions,Ministry of Education,Yinchuan 750021,China)

机构地区：[1]宁夏大学机械工程学院,宁夏银川750021 [2]宁夏节水灌溉与水资源调控工程技术研究中心,宁夏银川750021 [3]旱区现代农业水资源高效利用教育部工程研究中心,宁夏银川750021

出　　处：《宁夏工程技术》2018年第4期311-313,共3页Ningxia Engineering Technology

基　　金：宁夏大学科学研究基金资助项目(ZR1320)

摘　　要：研究了不同导热系数测定方法、干湿状态、水灰比对粉煤灰陶粒轻骨料混凝土导热系数的影响。结果表明:采用防护热板法和脉冲法测量出的导热系数值相差不大;饱和状态下粉煤灰陶粒轻骨料混凝土的导热系数大于干燥状态下的导热系数;粉煤灰陶粒轻骨料混凝土的导热系数随水灰比的增大而减小。In this paper,through studying the influence of different measuring methods of thermal conductivity,dry-wet state and water-cement ratio on thermal conductivity of fly ash ceramsite lightweight aggregate concrete,the following main conclusions are drawn:the thermal conductivity values measured by protective hot plate method and pulse method are almost the same;the thermal conductivity of lightweight aggregate concrete under saturated state is larger than that of fly ash ceramsite lightweight aggregate concrete.The thermal conductivity of fly ash ceramsite lightweight aggregate concrete decreases with the increase of water cement ratio.

关 键 词：粉煤灰陶粒 混凝土 导热系数 

分 类 号：TU528[建筑科学—建筑技术科学]