Crack Risk Evaluation of Submerged Concrete Tunnel during Hardening Phase

Table 6

Calculated and measured stresses in the TSTM tests.

Concrete type	Maximum compressive stress (MPa)				Maximum tensile stress (MPa)
	Time (days)	TSTM	DIANA	Ratio	Time (days)	TSTM	DIANA	Ratio
SV40	1.5	1.27	1.59	0.79	15	2.75	2.72	0.99
40% FA	1.5	0.62	0.92	0.67	17	2.50	2.67	1.07
60% FA	1.6	0.70	0.82	0.85	17	2.17	2.16	1.00
60% FA-11°C	2	0.30	0.45	0.67	17	2.44	2.73	1.12
40% BFS	1.5	1.50	1.25	1.20	12	2.46	2.57	1.04
60% BFS	1.7	1.0	0.80	1.25	13	2.47	2.67	1.08