ABSTRACT
Let us first formulate some of the questions and considerations which need to be addressed in respect of land structures. Then we can discuss what might be learnt from marine structures.
The specification of design life requires that durability must be quantified, that is time-dependent phenomena must be considered and assessed; this of course is already done in many instances. The significance of the current interest in these matters seems to be that durability should be specifically addressed in all construction.
