基于热物性的陶瓷沥青混凝土阻热性能研究

doi:10.3969/j.issn.1002-0268.2015.11.004

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Abstract The thermal insulating performance of ceramic asphalt concrete (CAC) is investigated based on the thermophysical parameters of asphalt mixture. CAC is produced by the replacement of the coarse aggregate in SMA-13 with ceramic aggregate by the same volume.The replacement percentages are 10%, 20%, 30%, 40%, and 50%. Thermophysical parameters (i.e., thermal conductivity, thermal diffusivity, and specific heat capacity) of the mixtures with different ceramic replacement contents are tested, and the thermal insulating effect of the CAC surface with different ceramic replacement contents on pavement is simulated. The relationship between the maximum temperature in pavement structure and the thermophysical parameters is analyzed using the gray correlation method. Results show that:(1) the addition of ceramic aggregate changes the thermophysical parameters of the mixture. Approximately 10% ceramic replacement percentage results in a reduction of thermal conductivity and thermal diffusivity by 20.5% and 23.5% respectively, and an increase of specific heat capacity by 20.9%. (2) The influence of ceramic decreases as the ceramic replacement percentage increases. FE analysis results show that, compared with the 4 cm thickness SMA-13 surface, ceramic reduces the temperature in pavement structure effectively, and 40% replacement percentage of CAC-13 significantly reduces temperature on the surface bottom by 5.2℃. Gray correlation analysis shows that three thermal parameters influence pavement temperature, and thermal conductivity has the most significant effect on temperature, followed by thermal diffusivity and specific heat capacity.

Key words： road engineering ceramic asphalt concrete transient plane heat source method temperature field simulation gray correlation analysis thermophysical parameter thermal insulating performance

Received: 05 November 2015

Fund:Supported by the National Natural Science Foundation of China (No.51178114);the National Key Technology R&D Program (No.2009BAG15B03);and the Project of Urumqi Science and Technology Bureau (No.Y131320007)

Corresponding Authors: MENG Fan-qi,E-mail address:328787332@qq.com E-mail: 328787332@qq.com

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	MENG Fan-qi
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Cite this article:

MENG Fan-qi,QIAN Zhen-dong,YANG Li-guang. Research on the Thermal Insulating Performance of Ceramic Asphalt Concrete Based on Thermophysical Property[J]. Journal of Highway and Transportation Research and Development, 2016, 10(2): 1-7.

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http://manu27.magtech.com.cn/Jwk_gljtkj_en/EN/10.3969/j.issn.1002-0268.2015.11.004 OR http://manu27.magtech.com.cn/Jwk_gljtkj_en/EN/Y2016/V10/I2/1

[1] LEI Yu-zi,ZHENG Nan-xiang,JI Xiao-ping. Evaluation on Temperature Reduction and Road Performances of Thermal Resistance Asphalt Mixture[J]. Journal of Wuhan University of Technology,2013,35(11):68-72. (in Chinese)
[2] LIU Gang,YAN Yan. Research Progress of Porous Ceramics Produced by Freeze Casting Technique[J]. Journal of Inorganic Materials,2014,29(6):571-583. (in Chinese)
[3] FENG De-cheng,ZHANG Xin,WANG Guang-wei. Development of Ceramic Thermal Resistance Wearing Course Materials and Performance Test[J]. Highway,2010(11):151-155. (in Chinese)
[4] WANG Guang-wei,JIA Sheng-qiang. Research on the Application of the Ceramics Ultra-thin Wearing Surface[J]. Highway Engineering,2011,36(4):203-206,218. (in Chinese)
[5] ZHANG Xin. Research on Heat Reflection and Thermal Resistance Technology of Asphalt Pavement Cooling Mechanism and its Application[D]. Harbin:Harbin Institute of Technology, 2011. (in Chinese)
[6] REN Yong-li. Research on the Performance of the Mixtures of Ceramic Waste for the Insulation Layer of Asphalt Pavement[D]. Guangzhou:South China University of Technology, 2011. (in Chinese)
[7] FENG De-cheng,LI Xing-hai,GUO Da-jin, et al. Research of Asphalt Mixture Based on Thermophysical Property[J]. Journal of Highway and Transportation Research and Development,2010,27(3):28-33. (in Chinese)
[8] XIAO Hong-jun,YU Fan,ZHANG Xin-xin. Thermal Conductivity Measurement of Materials Based on a Transient Hot-plane Method[J]. Journal of University of Science and Technology Beijing,2012,34(12):1432-1436. (in Chinese)
[9] CHEN Hua-xin,HE Meng-shuang,LI Yuan-yuan,et al. DSC Analysis on Asphalt and Asphalt Fractions[J]. Journal of Chongqing Jiaotong University:Nature Science Edition,2013,32(2):207-210. (in Chinese)
[10] LI Yan-wei,ZHANG Qian,XIE Lai-bin,et al. Testing of Asphalt Mixture Thermal Conductivity and Its Influences on Asphalt Pavement Temperature Field[J]. Journal of Functional Materials,2012,43(S1):129-132. (in Chinese)
[11] CHEN Chuan-juan,WANG Ru-zhu,XIA Zai-zhong,et al. Measurement of Thermal Conductivity of Silica Gel and Composite Adsorbent by Using Transient Plane Source Technique[J]. Journal of Engineering Thermophysics,2008,29(5):811-814. (in Chinese)
[12] WU Gan-chang. Analysis of Semi-rigid Pavement Temperature Stress[M]. Beijing:Science Press,1995. (in Chinese)
[13] XU Da. Experimental Study on the Heat Conduction of Asphalt Mixtures[D]. Xi'an:Chang'an University, 2012. (in Chinese)
[14] WANG Peng,ZENG Fan-qi,HUANG Xiao-ming. Grey Relation Degree Analysis of High-temperature Performance Indexes of Asphalt[J]. Journal of Traffic and Transportation Engineering,2006,6(3):32-36. (in Chinese)