Materials

September 25, 2008

Monitoring Temperatures in Highway Pavements

Objective
Quantify the temperature profile within two different highway material designs.

Methodology

Install temperature sensors at varying depths in the interstate highway. One section is made of full depth Portland Cement Concrete and the other a Concrete with Rubberized Asphalt Friction Course Overlay. Collect data for several months.  Measure the thermal properties of the high using core samples.

Significance

First long term subsurface temperature study of highway pavements. Results indicate an elevated temperature deep in the concrete day and night showing that highway pavements store a significant amount of solar energy. The subsurface temperatures beneath the rubberized sections were slighting cool than the sections with no overlay.

Duration

Fall 2006

Resulting Publication

Belshe, M., Kaloush, K., Golden, J., Phelan, P. (2007).  “AR-ACFC Overlays as a Pavement Preservation Strategy for PCCP”. Journal of the Transportation Research Board, CD-ROM, Washington, D.C., January 2007 – National Academies Press.