Rigid Pavement Maintenance for Airfields

The advent of jet aircraft has necessitated a reevaluation of pavement maintenance with respect to smoothness and reducing the probability of foreign object (debris) damage to jet engines and tires. The repair of spalled joints is one facet of rigid pavement maintenance for which repair techniques and materials have been developed and successfully used. The portland cement grout bonding technique (PCA-Acid Etch), using portland cement mortars or concretes, is discussed briefly and referenced. The recently developed method using epoxy resin mortar or concrete is explained in detail using an actual major repair project accomplished under quite adverse temperature conditions. The advantages and disadvantages of both methods are mentioned and performance is cited.