A conceptual framework for service life prediction of reinforced concrete structures

Abstract

This paper presents a conceptual framework methodology concerning service life prediction of concrete structures by using deterministic or probabilistic processes, which are included from collecting data until the decision-making. This methodology provides guidelines to generate new degradation models and accomplish new service life studies of either existing structures or new ones in literature. In the first case, it is possible to estimate how many years are necessary for the structure to reach the desired limit state (durability, service or of security). It can also provide support in project design by selecting durability requirements such as covering thickness, concrete strength, type of cement, water–cement ratio, among other factors that influence the service life of concrete structures.