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The modulus of elasticity of a concrete is controlled by the moduli of elasticity of its components. Approximate values for the modulus of elasticity E_cm, secant value between σ_c = 0 and 0,4 f_cm, for concretes with quartzite aggregates, are given in Table 2.3. For limestone and sandstone aggregates the value should be reduced by 10% and 30% respectively. For basalt aggregates the value should be increased by 20%. The strength classes in this code are based on the characteristic cylinder strength fck determined at 28 days with a maximum value of Cmax. Eurocode 2-1.1   (§ 3.1.3)

Table 1: Strength and deformation characteristics for concrete (Eurocode 2 – Table 3.1)