Laboratory Investigation of Hydrated Lime as an Antistripping Additive: Final Report

Report No: 84-R14

Published in 1983

About the report:

The purpose of this laboratory study was to determine the effectiveness of hydrated lime as an antistripping additive when used in bituminous mixes incorporating aggregates frequently used in such mixes in Virginia. The application of 1% hydrated lime to dry aggregate deterred stripping in 60% of the mixes tested. Applied at the same rate to wet aggregate, the hydrated lime decreased the stripping susceptibility to or very near an acceptable level for all but one mix. An aggregate dust coating reduced the effectiveness of the lime in one mix. It has been recommended that the use of hydrated lime as an antistripping additive be allowed.

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 17, 2024

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