Longitudinal joint specifications and performance.

Final report.PDFTech ReportFHWA/IN/JTRP-2012/29SPR-3210Asphalt pavementsLongitudinal jointsDurabilityDensityCompactionPavement performanceLiterature reviewsSpecificationsIndianaIndiana. Dept. of TransportationMcDaniel, Rebecca S.Shah, AyeshaOlek, JanPurdue University. Joint Transportation Research ProgramUnited States. Federal Highway AdministrationNTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and PerformanceUS Transportation CollectionDeterioration of longitudinal joints is widely recognized as one of the major factors contributing to failure of asphalt pavements. Findingways to improve the durability of longitudinal joints will lead to improved service lives and lower life cycle costs. Research and fieldtrials have been directed towards improving joint performance since at least the 1960s. Most of that work was addressed at improvingthe density at and around the joint. This report summarizes an extensive review of the pertinent literature, a review of statespecifications and inspection of several trial projects in Indiana related to longitudinal joint construction and performance.Recommendations are given for new and continuing efforts to encourage or require the construction of durable longitudinal joints andpossible future steps