Best Practices for Specifying and Constructing Longitudinal Joints

Longitudinal Joints (L-J) are considered the weakest link in the performance of asphalt pavements. Research has shown there is a definitive relationship between density, permeability, and pavement performance. This webinar is based on the result of a joint-FHWA-Asphalt Institute nationwide investigation to identify specification and construction practices, and methods for improvement. The recommendations to improve L-J performance include: mix selection, design and planning, alternative techniques and materials for consideration, preferred specification methodology, and best practices for constructing L-Js. It includes examples of successful state initiatives to increase joint density and improve performance.