Research Article

Optical-Fiber-Based Smart Concrete Thermal Integrity Profiling: An Example of Concrete Shaft

Table 1

Soil properties.

PropertiesUnitValue

Densitykg/m31800
Soil solid thermal conductivityW/m·K5
Water thermal conductivityW/m·K0.5
Air thermal conductivityW/m·K0.05
Soil solid heat capacityJ/(kg·K)850
Water heat capacityJ/(kg·K)4190
Porosity%51.1
Water content%39.8
Saturation%97