The Influence of Thickness on Density of an I-2 Bituminous Mix

Report No: 78-R47

Published in 1978

About the report:

From this very limited study, it was concluded that (1) even when the road cross section was distorted, the contractor did an excellent job of controlling the average application rate; (2) the percent compaction, while acceptably high, did not increase as the rate of application increased; (3) about 3 vibratory roller passes were equivalent to about 5 static passes; and (4) riding quality appeared to be a function of thickness, with the 165 lb yd².- section having the lowest roughness value.

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.


  • Charles S. Hughes, P.E.

Last updated: January 27, 2024

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