# [1]陈春,钱春香,许燕波.基于最小热阻理论的混凝土导热系数计算模型[J].东南大学学报(自然科学版),2012,42(2):383-387.[doi:10.3969/j.issn.1001-0505.2012.02.036] 　Chen Chun,Qian Chunxiang,Xu Yanbo.Calculation model of thermal conductivity of concrete based on minimum thermal resistance theory[J].Journal of Southeast University (Natural Science Edition),2012,42(2):383-387.[doi:10.3969/j.issn.1001-0505.2012.02.036] 点击复制 基于最小热阻理论的混凝土导热系数计算模型() 分享到： var jiathis_config = { data_track_clickback: true };

42

2012年第2期

383-387

2012-03-20

## 文章信息/Info

Title:
Calculation model of thermal conductivity of concrete based on minimum thermal resistance theory

Author(s):
Key Laboratory for Civil Engineering Materials, Southeast University, Nanjing 211189, China

Keywords:

TU520
DOI:
10.3969/j.issn.1001-0505.2012.02.036

Abstract:
The traditional calculation model of thermal conductivity of concrete that mechanically compartmentalizes the transfer path of heat flow in concrete material according to its compositions can seldom meet the minimum thermal resistance theory and may lead to large simulation results. Based on the minimum thermal resistance theory, an improved model considering the role of pore in concrete is presented. By introducing the heat transfer area proportion coefficient method, the compartmentalization of heat flow in concrete can meet not only the requirements of the concrete compositions, but also the minimum thermal resistance theory. The thermal conductivity of eight kinds of concrete is calculated by using the model. The deviation between the calculated results and experimental results ranges from -14.0% to +5.1%, while the corresponding deviation scope by the Harmathy model and the Campbell-Allen and Throne model are 4.9%-29.3% and 11.0%-32.1%, respectively. It can be found that the presented model is more accurate than the traditional calculation models of thermal conductivity.

## 参考文献/References:

[1] 赵玉青,邱攀,邢振贤,等.大体积混凝土导热系数反演分析[J].人民长江,2011,42(13):61-63.
Zhao Yuqing,Qiu Pan,Xing Zhenxian,et al.Back analysis for thermal conductivity of massive concrete [J].Yangtze River,2011,42(13):61-63.(in Chinese)
[2] 肖建庄,宋志文,张枫.混凝土导热系数试验与分析[J].建筑材料学报,2010,13(1):17-23.
Xiao Jianzhuang,Zhang Zhiwen,Zhang Feng.An experimental study on thermal conductivity of concrete[J].Journal of Building Materials,2010,13(1):17-23.(in Chinese)
[3] Wang Jianfeng,Carson James K,North Mike F,et al.A new approach to modeling the effective thermal conductivity of heterogeneous materials [J].International Journal of Heat and Mass Transfer,2006,49(17/18):3075-3083.
[4] Wang Jianfeng,Carson James K,North Mike F,et al.A new structural model of effective thermal conductivity for heterogeneous materials with co-continuous phases [J].International Journal of Heat and Mass Transfer,2008,51(9/10):2389-2397.
[5] Harmathy T Z.Thermal properties of concrete at elevated temperatures [J].Journal of Materials,1970,5:47-74.
[6] 周顺鄂,卢志远,严云.泡沫混凝土导热系数模型研究[J].材料导报,2009,23(3):69-74.
Zhou Shun’e,Lu Zhiyuan,Yan Yun.Study on thermal conductivity models of foamed concrete [J].Materials Review,2009,23(3):69-74.(in Chinese)
[7] Khan M I.Factors affecting the thermal properties of concrete and applicability of its prediction models [J].Building and Environment,2002,37(6):607-614.
[8] 张枫,肖建庄,宋志文.混凝土导热系数的理论模型及应用[J].商品混凝土,2009(2):23-26.
Zhang Feng,Xiao Jianzhuang,Song Zhiwen.The prediction models of thermal conductivity of concrete and their application [J].Commodity Concrete,2009(2):23-26.(in Chinese)
[9] 陈则韶,钱军,叶一火.复合材料等效导热系数的理论推算[J].中国科学技术大学学报,1992,22(4):416-423.
Chen Zeshao,Qian Jun,Ye Yihuo.Predicting theory of effective thermal conductivity of complex material [J].Journal of University of Science and Technology of China,1992,22(4):416-423.(in Chinese)
[10] 于承训.工程传热学[M].成都:西南交通大学出版社,1990.
[11] Kim Kook-Han,Jeon Sang-Eun,Kim Jin-Keun,et al.An experimental study on thermal conductivity of concrete [J].Cement and Concrete Research,2003,33(3):363-371.

## 相似文献/References:

[1]李富民,袁迎曙,杜健民,等.氯盐腐蚀钢绞线的受拉性能退化特征[J].东南大学学报(自然科学版),2009,39(2):340.[doi:10.3969/j.issn.1001-0505.2009.02.028]
Li Fumin,Yuan Yingshu,Du Jianmin,et al.Deterioration of tensile behavior of steel strands corroded by chloride[J].Journal of Southeast University (Natural Science Edition),2009,39(2):340.[doi:10.3969/j.issn.1001-0505.2009.02.028]
[2]金祖权,孙伟,侯保荣,等.混凝土的高温变形与微结构演化[J].东南大学学报(自然科学版),2010,40(3):619.[doi:10.3969/j.issn.1001-0505.2010.03.035]
Jin Zuquan,Sun Wei,Hou Baorong,et al.Deformation and microstructure evolution of concrete subjected to elevated temperature[J].Journal of Southeast University (Natural Science Edition),2010,40(2):619.[doi:10.3969/j.issn.1001-0505.2010.03.035]
[3]潘华,邱洪兴.基于损伤力学的混凝土疲劳损伤模型[J].东南大学学报(自然科学版),2006,36(4):605.[doi:10.3969/j.issn.1001-0505.2006.04.023]
Pan Hua,Qiu Hongxing.Fatigue model of concrete based on continuum damage mechanics[J].Journal of Southeast University (Natural Science Edition),2006,36(2):605.[doi:10.3969/j.issn.1001-0505.2006.04.023]
[4]吴勇华,杨决宽,陈云飞,等.超晶格薄膜热传导的分子动力学模拟[J].东南大学学报(自然科学版),2003,33(4):468.[doi:10.3969/j.issn.1001-0505.2003.04.021]
Wu Yonghua,Yang Juekuan,Chen Yunfei,et al.Molecular dynamics simulation of superlattice thermal conductivities[J].Journal of Southeast University (Natural Science Edition),2003,33(2):468.[doi:10.3969/j.issn.1001-0505.2003.04.021]
[5]耿飞,钱春香.图像分析技术在混凝土塑性收缩裂缝定量测试与评价中的应用研究[J].东南大学学报(自然科学版),2003,33(6):773.[doi:10.3969/j.issn.1001-0505.2003.06.022]
Geng Fei,Qian Chunxiang.Image analysis technique for quantitative testing and evaluation of plastic shrinkage cracks in concrete[J].Journal of Southeast University (Natural Science Edition),2003,33(2):773.[doi:10.3969/j.issn.1001-0505.2003.06.022]
[6]张辉,陈友昌.新疆沙漠砂有效导热系数的测定[J].东南大学学报(自然科学版),2002,32(2):237.[doi:10.3969/j.issn.1001-0505.2002.02.019]
Zhang Hui,Chen Youchang.Experimental study on effective thermal conductivity of desert sand from Xinjiang desert[J].Journal of Southeast University (Natural Science Edition),2002,32(2):237.[doi:10.3969/j.issn.1001-0505.2002.02.019]
[7]余红发,孙伟,麻海燕,等.盐湖地区钢筋混凝土结构使用寿命的预测模型及其应用[J].东南大学学报(自然科学版),2002,32(4):638.[doi:10.3969/j.issn.1001-0505.2002.04.023]
Yu Hongfa,Sun Wei,Ma Haiyan,et al.Prediction model for service life of reinforced concrete structures in salt lakes and its applications[J].Journal of Southeast University (Natural Science Edition),2002,32(2):638.[doi:10.3969/j.issn.1001-0505.2002.04.023]
[8]田正宏,白凯国,朱静.透水模板布改善混凝土表层质量试验研究[J].东南大学学报(自然科学版),2008,38(1):146.[doi:10.3969/j.issn.1001-0505.2008.01.028]
Tian Zhenhong,Bai Kaiguo,Zhu Jing.Study on surface quality of concrete improved by infiltrating formwork texture[J].Journal of Southeast University (Natural Science Edition),2008,38(2):146.[doi:10.3969/j.issn.1001-0505.2008.01.028]
[9]汪基伟,陈玉泉.平面应变混凝土强度变形试验与等效单轴应变本构模型[J].东南大学学报(自然科学版),2005,35(5):775.[doi:10.3969/j.issn.1001-0505.2005.05.026]
Wang Jiwei,Chen Yuquan.Strength-deformation test and equivalent uniaxial constitutive model of concrete in plane strain[J].Journal of Southeast University (Natural Science Edition),2005,35(2):775.[doi:10.3969/j.issn.1001-0505.2005.05.026]
[10]余红发,孙伟,王甲春,等.盐湖地区侵蚀性离子在混凝土中的扩散及其相互作用[J].东南大学学报(自然科学版),2003,33(2):156.[doi:10.3969/j.issn.1001-0505.2003.02.010]
Yu Hongfa,Sun Wei,Wang Jiachun,et al.Diffusion of corrosive ions into concrete exposed to salt lake and interaction between corrosive-ions and concrete[J].Journal of Southeast University (Natural Science Edition),2003,33(2):156.[doi:10.3969/j.issn.1001-0505.2003.02.010]