Abstract
ABSTRACT: Fifteen (15) reinforced concrete structures consisting of buildings in greater Johannesburg city area and major bridges at various motorway intersections were surveyed for active carbonation deterioration. This has been part of an ongoing field study conducted on the structures since 20001. The data collected were used to validate a degradation model which was subsequently applied for probabilistic analysis of service life of the structures. The statistical variability for durability design parameters of compressive strength, carbonation depth, and carbonation rate were established. The field data verify the validity of an environmentally sensitive carbonation deterioration model. The probabilistic assessment results are compared with findings of the deterministic approach1.