Asphalt Viability in Recycled Asphalt Pavement (RAP) Using the Gyratory Compactor

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CAIT project no.: CAIT-UTC-REG73

Fiscal Year: 2021/2022

Status: In Progress

Principal investigator(s): Thomas Bennert, Ph.D., (PI), Rutgers
Edward Wass, Jr., (Co-PI), Rutgers

Performing organization(s): Rutgers CAIT

In cooperation with: NJDOT Bureau of Pavement & Drainage Management & Technology
Partner project manager: Robert Blight, Executive Manager

Supported by: USDOT-OST-R

UTC, grant, or agreement no.: 69A3551847102


The primary goal of this proposal is to evaluate the viability of asphalt binder in RAP materials using a simplified procedure with the gyratory compactor. The researchers will generate a proposed parameter and recommended thresholds that would allow asphalt mixture suppliers to determine maximum RAP contents based on existing asphalt binder grades, softer binder grades, and recycling agents.

The intended outcome of the project is to provide a quick and accurate means of evaluating recycled asphalt pavement (RAP) that can be utilized back into new asphalt materials.