| 混凝土导热系数的理论模型及其应用 |
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| 引用本文： | 张枫,肖建庄,宋志文. 混凝土导热系数的理论模型及其应用[J]. 商品混凝土, 2009, 0(2) |
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| 作者姓名： | 张枫 肖建庄 宋志文 |
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| 作者单位： | 同济大学建筑工程系; |
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| 摘 要： | 本文介绍了确定普通混凝土导热系数的四个理论模型,它们分别是Campbell-Allen and Thorne模型、Hamilton and Crosser模型、Kook-Han Kim模型以及朱伯芳模型。通过这几个模型计算了不同骨料体积含量及不同强度等级混凝土的导热系数,并将这些计算值与实验值比较,可以发现Kook-Han Kim模型计算值的线性拟合与实验值较为接近;虽然其它三个模型计算值的线性拟合与实验值有一定误差,但当混凝土本身的导热系数越高时,它们得到的计算值的线性拟合与实验实测值的误差越小,而且这些模型足够可以反应各个因素对混凝土导热系数的影响。
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| 关 键 词： | 导热系数 普通混凝土 理论模型 |
The prediction models of thermal conductivity of concrete and their application |
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| Zhang Feng,Xiao Jianzhuang,Song Zhiwen. The prediction models of thermal conductivity of concrete and their application[J]. Ready-mixed Concrete, 2009, 0(2) |
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| Authors: | Zhang Feng Xiao Jianzhuang Song Zhiwen |
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| Affiliation: | Department of Building Engineering;Tongji University;Shanghai 200092;China |
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| Abstract: | In this paper,an investigation on four prediction models of thermal conductivity of concrete,including CampbellAllen and Thorne's model,Hamilton and Crosser's model,Kook-Han Kim's model and Zhu Bofang's model,is presented. The thermal conductivities of concrete with different aggregate volume fractions and different strength grades are calculated through these models,which are later compared with the experimental values.By comparison,the linear fitting of Kook-Han Kim's model is more appropriate than others... |
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| Keywords: | Thermal conductivity normal strength concrete prediction models |
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