ABSTRACT
Although most codes and specifications for the durability of concrete structures have been upgraded and improved in recent years, they are still mostly based on prescriptive requirements of concrete composition and the execution of concrete work, the results of which are neither unique nor easy to verify and control during concrete construction (Chapter 5). Upon completion of a new concrete structure, therefore, the structure is handed over to the owner without proper documentation of achieved construction quality and compliance with the specified durability. After some years, the owner may be faced with serious and costly maintenance problems during operation of the structure.
