Concrete cover

Exposure class according to table 4.1

Selected concrete strength class

No risk of corrosion or attack

Corrosion induced by carbonation

Corrosion induced by chlorides

Corrosion induced by chlorides from sea water

Freeze/Thaw Attack

Chemical attack

Design Working Life in years

Member with slab geometry

Special Quality Control

Type of steel

c_min,b bar diameter (minimum cover due to bond requirement, see 4.4.1.2 (3))

Δ c_dur,γ [mm] (additive safety element, see 4.4.1.2 (6))

Δ c_dur,st [mm] (reduction of minimum cover for use of stainless steel, see 4.4.1.2 (7))

Δ c_dur,add [mm] (reduction of minimum cover for use of additional protection, see 4.4.1.2 (8))

Δ c_dev [mm] (accepted deviation and hence allowance)