Assessment on Time-Varying Thermal Loading of Engineering Structures Based on a New Solar Radiation Model

Table 1

Thermal properties of material.

Parameters	Asphalt	Concrete	Steel
𝑘 (W/(m·C)): thermal conductivity	2.50	1.54	55
𝜌 (kg/m^3): density	2100	2400	7800
𝑐 (J/(kg·C)): heat capacity	960	950	460
𝛼: absorptivity coefficient	0.90	0.65	0.685
𝜀: emissivity coefficient	0.92	0.88	0.80