A clarification
Determination of exposure classes in the field of wastewater and the resulting concrete cover for reinforced concrete pipes
Preliminary note
Sometimes, there is an impression of uncertainty among clients and contracting parties about the requirements to impose on concrete and in particular on the concrete cover for reinforced concrete pipes. To be on the safe side, they set excessive requirements which, however, may be detrimental at another point.
Which exposure classes are to be set for the interior and exterior of pipes?
DIN 4030-1 applies to the exterior of pipes and is relating to the soil and the groundwater. The exposure is classified into XA1 up to XA3. One problem for tendering here is the fact that the...
