泡沫混凝土导热系数模型研究  

Study on Thermal Conductivity Model of Foamed Concrete

作　　者：周顺鄂[1] 卢忠远[1] 严云[1] 

机构地区：[1]西南科技大学材料科学与工程学院,先进建筑材料四川省重点实验室,绵阳621010

出　　处：《材料导报》2009年第6期69-73,83,共6页Materials Reports

基　　金："十一五"国家科技支撑计划子课题(2006BAF02A24);四川省科技攻关项目(2006Z02-044)

摘　　要：研制了系列不同容重的泡沫混凝土,对泡沫混凝土的气孔率和导热系数进行了测试。在此基础上利用二相体系材料导热系数模型对实验结果进行了分析,运用Matlab软件进行了拟合;改进了Maxwell方程,提出并验证了适用于泡沫混凝土的新方程。经测算,理论预测值与实验结果显示了良好的一致性,研究结果表明,所提出的导热系数新方程适合于指导设计特定配比的泡沫混凝土。A series of foamed concrete with different volume weight is prepared in this paper. Afterwards, the apparent pore rate and thermal conductivity are tested. Subsequently, the experimental result is analyzed by using theoretical models forecasting two-phase materials and fitted by using Matlab. And then, the Maxwell equation is im- proved. The new equation is proposed and testified which is applied to foamed concrete. According to the measurement and calculation, the results agree well with experimental ones. The results indicate that the proposed equation is suitable to guide the design of foamed concrete of specific proportion.

关 键 词：泡沫混凝土 导热系数 MATLAB模拟 

分 类 号：TU522.3[建筑科学—建筑技术科学]