Depth of concrete cover
Shortcomings in design B
De-icing salt
The minimum depths of concrete cover over steel rein- forcement specified in the standard are f r e q u e n t -
Design faults, e.g. un s ea l ed j o i n t s , incorrect handrail attachment, absent or non-functioning drainage, lack of
De-icing salts, which mainly consist of chloride salts, are a major hazard to concrete. If suf- ficient water is
l y no t obs e r ved . The r e i n - forcement is frequently much too close to the surface of the concrete. In this case, rust damage will inevitably occur even if concrete quality is otherwise good.
expansion joints or the like, may also cause considerable decay in isolated areas.
present, chlorides may cause seri- ous rust damage to the reinforce- ment even in uncarbonated concrete (chloride corrosion).
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