Nominal cover c_nom

The concrete cover is the distance between the surface of the reinforcement closest to the nearest concrete surface (including links and stirrups and surface reinforcement where relevant) and the nearest concrete surface. The nominal cover shall be specified on the drawing. It is defined as:

where:

c_min

is the minimum cover which follows from:

cmin = max {cmin,b; cmin,dur + Δcdur,γ - Δcdur,st - Δcdur,add; 10 mm}

(4.2)

with

c_min,b

the minimum cover due to bond requirement, see Table 4.2 (reinforcement steel) or § 4.4.1.2 (3) (prestressing steel)

c_min,dur

the minimum cover due to environmental conditions, see § 4.4.1.2 (5)

Δc_dur,γ

the additive safety element, see § 4.4.1.2 (6)

Δc_dur,st

the reduction of minimum cover for use of stainless steel, see § 4.4.1.2 (7)

Δc_dur,add

the reduction of minimum cover for use of additional protection, see § 4.4.1.2 (8).

For other adjustments of the minimum cover, see § 4.4.1.2 (4), § 4.4.1.2 (9), § 4.4.1.2 (10), § 4.4.1.2 (11), and § 4.4.1.2 (12).

Δc_dev

is the allowance in design for deviation, see § 4.4.1.3 (1)P, § 4.4.1.3 (2), § 4.4.1.3 (3), and § 4.4.1.3 (4).