U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
|Accelerating Infrastructure Innovations|
Publication Number: FHWA-SA-96-017
Date: June/July 1996
At its April meeting in San Antonio, the American Association of State Highway and Transportation Officials (AASHTO) passed a resolution encouraging its member States to support the Superpave regional centers. The resolution was initiated by the AASHTO Task Force on SHRP Implementation and was passed by the Standing Committee on Highways.
Two new products from the long-term pavement performance (LTPP) studies contain proposed revisions for selecting Superpave binders. The products are intended for pavement designers and materials engineers, as well as asphalt producers and suppliers.
When a State adopts the Superpave system or any other new technology, the ramifications reach beyond the materials engineering laboratory. The procurement department, for example, needs to know if costs are going to go up. The contractors who build the roads need to know if they will have to change any of their procedures or equipment. To answer these and a broad range of other questions, the Maryland Department of Transportation (DOT) recently held several meetings for pavement designers, safety engineers, contractors, materials engineers, district design and maintenance staff, and other people involved with road construction. The goal was to help staff from a range of departments better understand what's new in hot-mix asphalt (HMA) construction and to improve communications between different departments.
The Superpave system in action; August 21-22, 1996, Indianapolis, Indiana. This 1.5-day conference will give you a first-hand look at what's involved in designing and building Superpave pavements.
The Superpave system is increasingly being put into practice across the country, with two-thirds of States reporting that they are using or planning to use the Superpave volumetric mix design process this construction season. The projects include overlays, large-scale reconstruction, and new construction.