Eurocode 2: Design of concrete structures
Part 1-1: General rules and rules for buildings
Section 3: Materials

Applications

• 3.1.2 (5) Concrete compressive strength at an age of t days, f_ck(t)
• 3.1.2 (6) Mean value of concrete compressive strength at an age of t days, f_cm(t)
• 3.1.2 (9) Mean value of axial tensile strength of concrete at an age of t days, f_ctm(t)
• 3.1.3 (2) Secant modulus of elasticity of concrete at 28 days according to the type of aggregates used, E_cm
• 3.1.3 (3) Secant modulus of elasticity of concrete at an age of t days, E_cm(t)
• 3.1.4 (2) Creep coefficient defining creep between times t and t₀, φ(t,t₀)
• 3.1.4 (6) Total shrinkage strain at an age t, ε_cs
• 3.1.7 (3) Rectangular stress distribution for the design of concrete cross-sections: the factors λ, η
• 3.2.7 (2) Stress in reinforcing steel depending on its strain, σ_s
• 3.3.2 (7) Relaxation loss of prestressing steel, Δσ_pr

Nationally Determined Parameters (NDPs)

• 3.1.2 (2)P Maximum value of concrete strength classes C_max
• 3.1.2 (4) Design concrete strength after 28 days: the value of k_t
• 3.1.6 (1)P Design compressive strength of concrete: the coefficient α_cc
• 3.1.6 (2)P Design tensile strength of concrete: the value of α_ct
• 3.2.2 (3)P Yield strength range of reinforcing steel for the validity of design and detailing rules
• 3.2.7 (2) Design assumptions for reinforcement steel: the strain limit ε_ud
• 3.3.4 (5) Adequate ductility in tension of prestressing steel: the value of k
• 3.3.6 (7) Design assumptions for prestressing tendons: the strain limit ε_ud