Table 1: Main properties of concrete.

PropertyValuesNote

Density 2663.0 kg/m3Constant
Thermal conductivity 184.9 kJ/m day °CConstant
Specific heat 0.86 kJ/kg °C Constant
Heat convection coefficient 1200.0 kJ/m2 day °C Constant
1.40Constant
0.62Constant
0.88Constant
0.25Constant
Elastic modulus (28 d) 40 GPaTime-dependent
Poisson’s ratio 0.167Constant
Coefficient of thermal expansion 7 × 10−6/°CConstant
Allowable maximum principle (28 d) 1.98 MPa Time-dependent
Critical energy release rate for model I (28 d) 47.92 N/mTime-dependent