Allowance in design for deviation for the concrete cover: the value of Δcdev under controlled conditions
Eurocode 2 part 1-1: Design of concrete structures 4.4.1.3 (3)
In certain situations, the accepted deviation and hence allowance, Δcdev, may be reduced.
Recommendation
The recommended values are:
- where fabrication is subjected to a quality assurance system, in which the monitoring includes measurements of the concrete cover, the allowance in design for deviation Δcdev may be reduced:
| 10 mm ≥ Δcdev ≥ 5 mm | (4.3N) |
- where it can be assured that a very accurate measurement device is used for monitoring and non conforming members are rejected (e.g. precast elements), the allowance in design for deviation Δcdev may be reduced:
| 10 mm ≥ Δcdev ≥ 0 mm | (4.4N) |
