ABSTRACT

This paper presents a hybrid analysis of new deck construction using finite difference modeling of water soluble chloride ion diffusion in concrete with Ground Penetrating Radar (GPR) survey analyses of the decks to predict when reinforcement corrosion and cracking occur over the range of actual cover thickness provided across the entire surface of each deck. The present value cost difference between the predicted first repair and the design service life value can used as the basis of a pay adjustment in an end-result performance specification construction contract.