Segregation of Asphalt Mixes Caused by Surge Silos: Final Report

Report No: 82-R47

Published in 1982

About the report:

Segregation of asphalt mixes continues to be a problem in Virginia, particularly with base mixes and coarse surface mixes. Although the problem is encountered primarily on jobs using surge silos, it has been related to other factors such as mix design and handling or paving techniques. This report discusses changes in equipment and production procedures that reportedly have alleviated the problem, including specifications devised to eliminate segregation in the surge bin. Also discussed is a field project in which an attempt was made to prevent segregation by changes to the equipment and the production and paving processes.

Disclaimer Statement:The contents of this report reflect the views of the author(s), who is responsible for the facts and the accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the Virginia Department of Transportation, the Commonwealth Transportation Board, or the Federal Highway Administration. This report does not constitute a standard, specification, or regulation. Any inclusion of manufacturer names, trade names, or trademarks is for identification purposes only and is not to be considered an endorsement.


  • G. W. Maupin, Jr., P.E.

Last updated: January 21, 2024

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