Strength characteristics for concrete

EN 1992-1-1:2004,Table 3.1

fck	fck cube	fcm	fctm	fctk 0.05	fctk 0.95	Ecm	ε c1	ε cu1	ε c2	ε cu2	n	ε c3	ε cu3
[MPa]	[MPa]	[MPa]	[MPa]	[MPa]	[MPa]	[GPa]	[1/1000]	[1/1000]	[1/1000]	[1/1000]	[-]	[1/1000]	[1/1000]
12	15	20	1.6	1.1	2.0	27	1.8	3.5	2.0	3.5	2.0	1.75	3.5
16	20	24	1.9	1.3	2.5	29	1.9	3.5	2.0	3.5	2.0	1.75	3.5
20	25	28	2.2	1.5	2.9	30	2.0	3.5	2.0	3.5	2.0	1.75	3.5
25	30	33	2.6	1.8	3.3	31	2.1	3.5	2.0	3.5	2.0	1.75	3.5
30	37	38	2.9	2.0	3.8	33	2.2	3.5	2.0	3.5	2.0	1.75	3.5
35	45	43	3.2	2.2	4.2	34	2.25	3.5	2.0	3.5	2.0	1.75	3.5
40	50	48	3.5	2.5	4.6	35	2.3	3.5	2.0	3.5	2.0	1.75	3.5
45	55	53	3.8	2.7	4.9	36	2.4	3.5	2.0	3.5	2.0	1.75	3.5
50	60	58	4.1	2.9	5.3	37	2.45	3.5	2.0	3.5	2.0	1.75	3.5
55	67	63	4.2	3.0	5.5	38	2.5	3.2	2.2	3.1	1.75	1.8	3.1
60	75	68	4.4	3.1	5.7	39	2.6	3.0	2.3	2.9	1.6	1.9	2.9
70	85	78	4.6	3.2	6.0	41	2.7	2.8	2.4	2.7	1.45	2.0	2.7
80	95	88	4.8	3.4	6.3	42	2.8	2.8	2.5	2.6	1.4	2.2	2.6
90	105	98	5.0	3.5	6.6	44	2.8	2.8	2.6	2.6	1.4	2.3	2.6