Constructability of Longitudinal Construction Joints in Hot-Mix Asphalt Pavements with Sealers to Retard Future Deterioration

摘要

The failure of hot-mix asphalt (HMA) pavements at the longitudinal construction joint is well documented. Several studies have been undertaken to determine the best way to construct these joints to prevent premature deterioration. As the results of several studies became clear, the New York State Department of Transportation (NYSDOT) first changed the procedures for constructing longitudinal joints from rolling the joint from the cold side to rolling the joint from the hot side. Subsequently, the NYSDOT approved the use of a notched wedge joint for HMA longitudinal joint construction. The studies on longitudinal joint construction also included the use of longitudinal joint sealers. In the Pennsylvania study, the joints constructed with the longitudinal joint sealer performed the best The NYSDOT was interested in this technique, but it was not convinced that the installation of the sealer could be accomplished without disrupting the HMA placement In the summer of 2004, the NYSDOT constructed three HMA pilot projects using three different joint sealers to determine their constructability. One project on Interstate 81 (I-81) in Cortland County used the XJB eXtruded Joint Bond product from Asphalt Materials, Inc. A second project used the Crafco Pavement Joint Adhesive product on New York State Route 417 (NY-417) in Steuben County. The third project used the Deery Cold Joint Adhesive product on I-87 in Saratoga County. This paper will document the installations and problems, or lack thereof, experienced during the pilot projects.