Surface deterioration of exposed transportation structures is a major problem. In most cases, surface deterioration could lead to structural problems because of the loss of cover and ensuing reinforcement corrosion. To minimize the deterioration, various types of coatings have been tried over three decades with different degrees of success. For successful long-term performance, the coating material itself should be durable, should bond well to the parent surface, and be compatible with parent surface in terms of expansion or contraction during temperature changes.