Influence of Ground Temperature on Shotcrete-to-Rock Adhesion in Tunnels

Table 8

Refrigerant thermal physical coefficient [78].

Refrigerant	Density (kg/m^3)	Thermal conductivity (W/m·°C)	Specific heat capacity (J/(kg·°C))	Phase change point (°C)
Ice	917	2.4000	2060	−4.0
Liquid nitrogen	820	0.0933	2016	−195.8