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 220.127.116.11 (3)
In certain situations, the accepted deviation and hence allowance, Δcdev, may be reduced.
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)|