Heat Transfer Characteristics of Asphalt Mixture by Water-Saturation

2021 ◽  
Vol 23 (5) ◽  
pp. 21-27
Author(s):  
Seong-Kyum Kim ◽  
Kwan-Ho Lee
Keyword(s):  
Heat Transfer ◽  
Water Saturation ◽  
Asphalt Mixture ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics

scholarly journals Heat Transfer Characteristics of Asphalt Mixtures with Different Thicknesses

2021 ◽  
Vol 21 (4) ◽  
pp. 169-177
Author(s):  
Kwanho Lee ◽  
Seongkyum Kim
Keyword(s):  
Heat Transfer ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Recycled Aggregate ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics ◽  
Surrounding Environment ◽  
Pavement Damage ◽  
Pavement Thickness

Generally, the main causes of asphalt pavement damage are repeated loads and increased temperatures. The surrounding environment and material factors influence the degree of damage. In this study, the heat transfer characteristics with a change in the asphalt pavement thickness were analyzed. The sample types were the conventional dense asphalt mixture (WC-2), dense asphalt mixture containing 30% recycled aggregate (ReWC-2), and drainage asphalt mixture (PA-13). The mixtures were compacted using a rotary compactor. Thermal accumulation tests on samples with thicknesses of 3, 5, and 10 cm were performed. The values for the 10-cm-thick samples were 1.27 for WC-2, 1.28 for ReWC-2, and 0.91 for PA-13. The thermal conductivity tended to decrease as the pavement thickness increased. An experimental study on the heat transfer characteristics with varying thicknesses of asphalt pavement suitable for energy harvesting was conducted.

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