Research Article
Crack Risk Evaluation of Early Age Concrete Based on the Distributed Optical Fiber Temperature Sensing
Table 3
Thermal and mechanical properties of materials.
| | Type of properties | Parameter | Concrete | Bedrock |
| | Thermal properties | Specific heat [kJ/(kg·°C)] | 0.86 | 0.76 | | Thermal conductivity [kJ/(m·d·°C)] | 184.9 | 360.0 | | Thermal diffusivity (m2/d) | 0.0758 | 0.1774 | | Heat exchange coefficient [kJ/(d·m2·°C)] | 1450 | 1450 | | Adiabatic temperature rise (°C) | Transient | 20.5 |
| | Mechanical properties | Density (kg/m3) | 2663 | 2670 | | Poisson ration | 0.17 | 0.20 | | Linear expansion coefficient (/°C) | 7.0 | 6.0 | | Elastic modulus (GPa) | Transient | 23.0 | | Creep | Transient | None | | Autogenous volume deformation | Transient | None |
| | Ambient conditions | Temperature (°C) | Weather forecasting and historical monitoring data |
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