Properties | Concrete | Ground |
---|---|---|
Specific heat (kcal/N∙°C) | 0.025 | 0.02 |
Density (N/m3) | 23,500 | 17,000 |
Thermal conductivity (kcal/m h °C) | 2.3 | 1.7 |
Convection coefficient (kcal/m2 h °C) | 12 | 12 |
Ambient temperature (°C) | 20 | – |
Prescribed temperature (°C) | 20 | – |
Compressive strength (MPa) | Variable | – |
Modulus of elasticity (MPa) | Variable | 980 |
Coefficient of expansion | 1.0 × 10−5 | 1.0 × 10−5 |
Poisson’s ratio | 0.167 | 0.2 |