Concrete pavement joints and cracks are sealed to keep water and non-compressible materials out. Although joints are typically sealed at the time of construction, the life of sealants is shorter than the life of the pavement. The AASHTO NTPEP has done field evaluations of many types of sealants and found that the materials used, the saw cut and preparation, and installation all affect the performance of the seal.
- Investigation of Jointed Plain Concrete Pavement Deterioration at Joints
and the Potential Contribution of Deicing Chemicals.
- Monitoring of the NTPEP Joint Sealer Sections in Motley & Staples
- Development of an Acceptance Procedure for Concrete Repair Materials
- Edge-Joint Sealing as a Preventive Maintenance Practice (PDF 1.4MB, 20pp)
- Concrete Pavement Preservation: Performance of a Test Section with Various Test Cells of Unique Joint Sealant and Contractor- Established Joints (PDF 665.6KB, 21pp)
- Role of Joint Seal Effectiveness in Concrete Pavement Performance & Rehabilitation (PDF 4.12 MB)
- NTPEP Joint Sealants
- NTPEP Concrete Joint Sealant 2 Year Report
- NTPEP Concrete Joint Sealant 3 Year Report