An Investigation of the Effects of Elevated Mixing Temperatures on the Properties of Asphalt Cement

Report No: 71-R22

Published in 1972

About the report:

This laboratory investigation was instituted to determine the feasibility of increasing the design mixing temperature for hot-mix asphaltic concrete. Based on data obtained from modified thin film oven tests, it appears that the upper design limit could be increased to 300°F without appreciably affecting the durability of the asphalts studied. The data also indicate that softer grade asphalts (120-150 penetration) remain considerably higher in penetration value than harder asphalts (50-60 and 60-70) after the modified thin film test.

Documents

71-R22

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Authors

J. Wayne Aderhold

Last updated: February 9, 2024