Table 5.

Mechanical properties of the concretes.

Parameter	C0	C1	C2	C3
Compressive strength (MPa)	54.2	45.5	42.5	40.7
CV	5.3	5.1	6.1	4.1
Flexural tensile strength (MPa)	5.35	5.92	6.31	6.53
CV	1.5	0.75	0.76	0.81
Splitting tensile strength (MPa)	5.10	5.28	5.45	5.96
CV	0.77	0.71	0.43	0.89
Frost resistance-mass loss after 180 cycles F-T (%)	1.03	1.15	1.43	2.11
CV	0.09	0.09	0.02	0.23
Salt crystallization resistance-loss mass after test (%)	1.00	1.02	1.34	1.79
CV	0.03	0.04	0.07	0.08
Static modulus of elasticity (GPa)	12.93	12.26	11.34	10.91
CV	2.22	1.25	2.31	1.89
Dynamic modulus of elasticity (GPa)	15.47	14.92	13.65	13.12
CV	1.45	1.67	2.32	2.71

CV = Coefficient of variation.