Table 3 Model input parameters.

Concrete class

C45/55

Aggregate type

Limestone

Thermal expansion coefficient of concrete (1/°C)

10.0 × 10⁻⁶

Thermal conductivity of concrete (W/m °C)

2.7

Heat capacity of concrete (J/m³ °C)

2.87 × 10⁶

Coefficient of convection and radiation between concrete and air (W/m² °C)

7.55

Initial temperature (°C)

20

Slab notional size (mm)

439

Relative humidity (%)

80

Curing age (Days)

3

Steel’s modulus of elasticity (GPa)

200

Steel’s yield strength (MPa)

500