Asphalt Technology News

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The National Center for Asphalt Technology (NCAT) has undertaken a wide range of hot mix asphalt (HMA) related research projects. These projects have been funded by various agencies such as the National Cooperative Highway Research Program (NCHRP) of the Transportation Research Board, the Federal Highway Administration (FHWA), the Alabama Department of Transportation, the South Carolina Department of Transportation, and the National Asphalt Pavement Association Research and Education Foundation. Most of these research projects are of national interest and will help advance HMA technology. A discussion of some selected research projects and other NCAT activities follows. Design and Evaluation of Stone Matrix Asphalt (SMA) Mixes. This NCHRP project was undertaken to develop a rational mix design and evaluation procedure for SMA. Phase I, which consisted of a recommended mix design procedure for SMA using Marshall equipment, has been completed. Phase II, which is under way, will recommend specific tests and criteria for the mortar fraction of the SMA mixture as well as for the total SMA mixture. On completion of this project, a revised Marshall mix design procedure and a Superpave mix design procedure will be recommended for SMA mixtures.

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Asphalt Technology News

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Asphalt Technology News

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تاریخ انتشار 1998