Thermal Insulating Concrete Wall Panel Design for Sustainable Built Environment

Table 2

Physical properties of the materials at 25°C and 1 atm.

Properties	Concrete	Gypsum
Density () (kg·m^−3)	2300	1500
Specific heat () (J·kg^−1·K^−1)	750	1090
Free convection coefficient () (W·m^−2·K^−1)	8.9	9.0
Emissivity coefficient ()	0.85	0.85