Testing Rapid-Setting Cementitious Products for Repairing PCC Pavement Spalls

Abstract: Maintenance and repair activities are critical for sustaining airfield operations economically and efficiently on existing concrete pavement infrastructure. Repairing spalls on portland cement concrete (PCC) is a common work activity used to reduce the costs associated with aircraft damage and prolong the service life of the pavement further reducing the life-cycle costs for the pavement structure. A considerable investment has been made in the construction of a concrete surface and the vehicles and aircraft that use these surfaces; therefore, costs decrease dramatically for every additional year of pavement use that does not cause vehicular or aircraft damage or require repeated partial patching or full slab replacement. Laboratory performance of 11 different cementitious rapid-setting repair products were evaluated for repairing spalls on PCC airfield pavements. The laboratory testing evaluations were performed at the Engineering Research and Development Center (ERDC) in Vicksburg, MS. The laboratory testing evaluations of the selected rapid-setting repair products considered how well each product performed under ASTM test methods for Compressive Strength, Flexural Strength, Bond Strength, Modulus of Elasticity, Time of Set, Slump, and Slump Flow. This paper will provide the evaluation results from the testing protocol, and the materials meeting the passing criteria for use repairing spalls on airfield (PCC) pavement structures.