Crack Risk Evaluation of Submerged Concrete Tunnel during Hardening Phase

Table 2

Parameters for thermal properties.

Concrete type	Heat production				Activation energy (1/°K)		Thermal conductivity (kJ/ms°C)	Specific heat (J/kg°C)
	Binder (kg/m^3)^1	Q∞ (kJ/kg binder)	τ (h)	α	A	B
SV40	424	319	15.04	1.34	21966	2699	0.0026	1.06
40% BFS	382	286	18.95	0.84			0.0024
60% BFS	384	274	21.97	0.78			0.0024
40% FA	382	244	20.12	1.39	26574	1030	0.0024	1.07
60% FA	384	215	21.86	1.17	36192	1136	0.0024	1.07
60% FA (with initial temperature 11°C)	382	222	17.34	1.15			0.0024

¹Binder = cement + silica fume + fly ash + blast furnace slag.