During the past few years many spalled areas have appeared in the reinforced concrete bridge decks and in the concrete slabs at interchange plazas and service areas on the New Jersey Turnpike. Investigation of the failures revealed that reinforcing steel was too close to the surface of the concrete. In some cases the steel was with in one-half inch of the surface. Where that condition existed, hair line cracks appeared in the concrete deck surface. The steel rusted under these conditions and finally spalled areas were formed. A material had to be found which could be installed rapidly and which would last practically indefinitely. The Maintenance Department experimented with several products that the manufacturers claimed would meet these requirements. Finally, an epoxy patching compound consisting of a two-component epoxy resin with the aggregate to be added by the user was chosen. The first step in repairing spalled areas was to remove all loose particles of concrete by means of a small chipping hammer. After the surface area of the spalled surface was clean, sound and dry, the filing operation was started. The second step was to blend the two components of the epoxy resin by means of a small portable electric drill with wire paddles. It was essential that the entire contents of both containers be completely mixed until they were a uniform light gray color. The surface to be patched had to be primed with the mixture by means of a paint brush. To the balance of the mixture was added dry, manufactured sharp stone sand or silica sand. The electric drill was used again to blend the mixture and the sand aggregate. The mixing was continued until the drill and paddle were practically stalled by the mixture. The mixture was then passed in the spalled area and troweled to a smooth surface finish. While the mixture was still tacky, sharp sand was spread lightly over the completed surface patch.