ABSTRACT
For concrete structures, durability is generally defined as the capability of maintaining the serviceability over a specified period of time without significant deterioration. In general, design concepts for durability can be divided into prescriptive concepts and performance concepts. Prescriptive concepts are based on material specification from given parameters such as exposure classes and life span of the structure. However, durability is a material performance concept for a structure in a given environment and as such it cannot easily be assessed through intrinsic material properties. Performance concepts, on the other hand, are based on quantitative predictions for durability from exposure conditions and measured material parameters.
