Title:
Influence of Different Factors on Thermal Behavior of Permeable Concrete Pavement
Author(s):
Chaoguo Wu, Xudong Chen, Chen Chen, Tao Ji, and Chang Jin
Publication:
Materials Journal
Volume:
122
Issue:
4
Appears on pages(s):
3-12
Keywords:
evaporative cooling; indoor simulation experiments; pavement temperature; permeable concrete pavement; thermal behaviors
DOI:
10.14359/51746812
Date:
7/1/2025
Abstract:
Pavement hardening has a significant impact on urban ecologicalenvironments and intensifies urban heat island (UHI) effect, andpermeable pavement is considered an effective solution to alleviateUHI effect. However, the evaluation of solar evaporative coolingperformance is still controversial after use. It is necessary to studythe influence of different factors on the thermal performance ofpermeable concrete pavement. The indoor simulation test resultsshow that in the cycle of simulated heating and cooling, permeablepavement with large aggregate particle size has a greater impacton the near-surface thermal environment. The air temperature nearthe surface of dry permeable concrete is higher, and the increase ofwater content can exert the evaporative cooling effect to a greaterextent. Compared with changing the aggregate particle size of thestructural layer, the addition of a sand layer has a certain impact.Changing the surface color of the test specimen has a great effecton the reflectivity of the pavement, delaying the rise of the surfacetemperature and the vertical transfer of heat radiation.