Thermoregulation effect analysis of microencapsulated phase change thermoregulation agent for asphalt pavement

2019 ◽  
Vol 221 ◽  
pp. 139-150 ◽  
Author(s):  
Yu-xiang Tian ◽  
Biao Ma ◽  
Feng-wei Liu ◽  
Ning Li ◽  
Xue-yan Zhou
Keyword(s):  
Phase Change ◽  
Asphalt Pavement ◽  
Effect Analysis

Analysis on Application Prospect of Shape-Stabilized Phase Change Materials in Asphalt Pavement

2013 ◽  
Vol 357-360 ◽  
pp. 1277-1281 ◽  
Author(s):  
Li Hong He ◽  
Jing Ruo Li ◽  
Hong Zhou Zhu
Keyword(s):  
Thermal Stability ◽  
Phase Change ◽  
Phase Change Materials ◽  
Asphalt Pavement ◽  
Driving Safety ◽  
Maintenance Cost ◽  
Chemical Compatibility ◽  
Good Thermal Stability ◽  
Large Phase ◽  
And Control

Blends of asphalt and shape-stabilized phase change materials (SSPCM) were prepared by physical blending. Heat storage and thermal stability of asphalt-SSPCM blends were investigated by DSC and TG, chemical compatibility of asphalt-SSPCM blends was characterized by FT-IR, and the application feasibility of SSPCM in asphalt pavement was explored. The results show that asphalt-SSPCM blends have large phase change enthalpy, good thermal stability and chemical compatibility. Based on phase change theoretical analysis and numerical calculation, SSPCM applied in asphalt pavement can actively regulate and control pavement temperature using solar energy conversion or storage, lighten the asphalt pavement diseases related temperatures, enhance the performance of and prolong the service life of asphalt pavement, lower repair and maintenance cost, and enhance driving safety. At the same time, it can also saving energy sources and protect environment. Therefore, SSPCM have broad application foregrounds in asphalt pavement.

scholarly journals A Review on Phase Change Materials Incorporation in Asphalt Pavement

2018 ◽  
Vol 3 (2) ◽  
pp. 171
Author(s):  
Intan Kumalasari ◽  
Madzlan Napiah ◽  
Muslich H. Sutanto
Keyword(s):  
Porous Material ◽  
Phase Change ◽  
Phase Change Material ◽  
Asphalt Concrete ◽  
Phase Change Materials ◽  
Mechanical Performance ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Pavement Temperature ◽  
Change Material

Phase Change Material (later to be referred as PCM) has been successfully utilized in some areas. PCM has emerged as one of the materials for pavement temperature reducing due to its latent heat. Some research has been done regarding this topic. The objective of this paper is to review the development of PCM in asphalt pavement. The review has shown that organic PCM appears as the favourite PCM in asphalt concrete studies. Choice of porous material depends on method of incorporation. Reduction of temperature in PCM-asphalt mixture compared to conventional one is undoubtable. However, the mechanical performance of PCM-asphalt mixture need to be explored.

Preliminary Study on Asphalt Mortar Containing Shaped-Stabled Phase Change Material

2011 ◽  
Vol 306-307 ◽  
pp. 1702-1706 ◽  
Author(s):  
Mei Zhu Chen ◽  
Guang Ji Xu ◽  
Shao Peng Wu ◽  
Wan Lu
Keyword(s):  
High Temperature ◽  
Comparative Study ◽  
Phase Change ◽  
Asphalt Concrete ◽  
Phase Change Materials ◽  
Asphalt Pavement ◽  
Lag Effect ◽  
Preliminary Study ◽  
Change Material ◽  
Asphalt Mortar

The objective of this study is to investigate the preliminary feasibility on the utilization of shaped-stabled phase change materials (SSPCM) in asphalt concrete to control pavement high-temperature. A comparative study has been conducted on the properties of asphalt with and without SSPCM. The properties investigated include basic and rheological performance along with temperature-controlling effect of asphalt mortars. The results show that there exist stiffening and “temperature lag” effect for asphalt mortar containing SSPCM, which indicates that it may be promising to use SSPCM to reduce high-temperature of asphalt pavement.

Optimization of Phase Change Materials Used in Asphalt Pavement to Prevent Rutting

2011 ◽  
Vol 219-220 ◽  
pp. 1375-1378 ◽  
Author(s):  
Mei Zhu Chen ◽  
Jing Hong ◽  
Shao Peng Wu ◽  
Wan Lu ◽  
Guang Ji Xu
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Building Materials ◽  
Phase Change Materials ◽  
Asphalt Pavement ◽  
Control Sample ◽  
Expanded Graphite ◽  
Self Control ◽  
Change Material

Rutting is a common and serious phenomenon in asphalt pavement especially in high temperature areas. Phase change material (PCM) can adjust temperature through storing and releasing thermal energy during phase change process and has been used in thermal energy storage areas and building materials. However, the use of PCM to regulate the temperature of asphalt pavement has not been widely studied. In this paper, the feasibility of temperature self-control asphalt pavement using PCM was studied for preventing rutting. The temperature-control mechanism of asphalt pavement with PCM has been presented. The selection criteria of PCM used in asphalt pavement have been made. Meanwhile, a paraffin/expanded graphite shape-stabled phase change material with a phase change temperature range of 40°C~50°C has been used in this study. The temperature rising test of asphalt concrete showed that sample with PCM exhibited a lower temperature than the control sample, which indicates that it is feasible to use PCM in asphalt pavement for lowering temperature and preventing rutting.

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