Title:
Influence of Different Factors on Thermal Behavior of Permeable Concrete Pavement (Prepublished)
Author(s):
Chaoguo Wu, Xudong Chen, Chen Chen, Tao Ji, and Chang Jin
Publication:
Materials Journal
Volume:
Issue:
Appears on pages(s):
Keywords:
evaporative cooling; indoor simulation experiments; pavement temperature; permeable concrete pavement; thermal behaviors
DOI:
10.14359/51746812
Date:
5/12/2025
Abstract:
Pavement hardening has a significant impact on the urban ecological environment and intensifies the urban heat island (UHI) effect, and permeable pavement is considered an effective solution to alleviate the UHI effect. However, the evaluation of solar evaporative cooling performance is still controversial after use. It is necessary to study the influence of different factors on the thermal performance of permeable concrete pavement. The indoor simulation test results show that in the cycle of simulated heating and heating and cooling, permeable pavement with large aggregate particle size has a greater impact on the near-surface thermal environment. The air temperature near the surface of dry permeable concrete is higher, and the increase of water content can exert the evaporative cooling effect to a greater extent. Compared with changing the aggregate particle size of the structural layer, the addition of a sand layer has a certain impact. Changing the surface color of the test specimen has a great effect on the reflectivity of the pavement, delaying the rise of the surface temperature and the vertical transfer of heat radiation.