A Radiative Technique for Measuring the Thermal Properties of Road and Urban Materials

Sophie Parison (1) , Martin Hendel (1) , Arnaud Grados (2) , Kristine Jurski (2) , Laurent Royon (2)

1 LIED (UMR_8236) - Laboratoire Interdisciplinaire des Energies de Demain
2 MSC - Matière et Systèmes Complexes

The impact of urban construction materials, including pavement structures, on the urban climate depends on their thermal properties. However, their determination with standard methods is made difficult by the presence of large heterogeneities and their surface roughness. We propose a radiation-based method to overcome these difficulties and characterize their apparent thermal properties (conductivity, specific heat, etc.). The approach is compared with results obtained by using the hot-disk and the hot-plate methods and shows good agreement for smooth and homogenous material samples. The method is found to be useful for characterizing the thermal properties of materials with varying heterogeneity and surface roughness.

Mots clés: apparent thermal property; heterogeneous materials; rough materials; urban material

Domaines: Thermique [physics.class-ph]

Sophie Parison, Martin Hendel, Arnaud Grados, Kristine Jurski, Laurent Royon. A Radiative Technique for Measuring the Thermal Properties of Road and Urban Materials. Road Materials and Pavement Design, inPress. ⟨hal-02272929⟩