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Preparation of Latent Heat Materials Used in Asphalt Pavement and Theirs’ Controlling Temperature Performance

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Abstract:

In order to solve the rutting diseases of asphalt concrete pavement, latent heat materials for asphalt pavement were prepared and its controlling temperature performance was studied. Phase change materials (PCM), which were fitted to thermal environment of road were selected, phase change asphalt, diatomite powder and pottery sand granular composite phase change materials (CPCM) were prepared by three kinds of import modes. The CPCM were chosen by comparing the performance of above mentioned materials. Latent heat asphalt mixture (LHAM) was made by replacing mineral powder and fine aggregate with CPCM. Its controlling temperature ability was tested by temperature monitor system. The results show that, comparing to asphalt mixture, LHAM can reduce the temperature to 8-10°C. Therefore, the LHAM has a good effect on adjusting the road temperature.

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Periodical:

Advanced Engineering Forum (Volume 5)

Pages:

322-327

DOI:

https://doi.org/10.4028/www.scientific.net/AEF.5.322

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Cite this paper

Online since:

July 2012

Authors:

Xin Bian, Yi Qiu Tan, Jian Fu Lv, Li Yan Shan

Keywords:

Composite Phase Change Material, Phase Change Asphalt Mixture, Rutting, Simulation Experiment, Temperature Control

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Creative Commons CC BY 4.0

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