Portland cement concrete (PCC) partial-depth spall repair

007845521999PDFResearch PaperFHWA-RD-99-177Portland cement concretePatchingMaterials testsSpallingPavement performanceLong term pavement performance (LTPP)Partial depth patchesTurner-Fairbank Highway Research CenterUnited States. Federal Highway AdministrationNTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and PerformanceFederal Highway AdministrationThe primary aim of the partial-depth spall repair study was to determine the most effective and economical materials and procedures for placing quality, long-lasting partial-depth patches in jointed concrete pavements. A secondary objective of the study was to identify any performance-related material tests that would enhance the material selection process and provide a better guarantee of patch performance. This technical summary summarizes the key benefits of this research, the experiment design, the evaluations performed, key findings, and recommendations from this research. This TechBrief is based on the report, "LTPP Pavement Maintenance Materials: SHRP PCC Partial-Depth Spall Repair Experiment, Final Report" (FHWA-RD-99-153; TRIS 00778832)