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Advance Use of Recycled Asphalt in Flexible Pavement Infrastructure: Develop and Deploy Framework for Proper Use and Evaluation of Recycled Asphalt in Asphalt Mixtures

Project Information

Project ID: 
FHWA-PROJ-11-0070
Project Status: 
Active
Start Date: 
Saturday, October 1, 2011
End Date: 
Tuesday, June 30, 2020
FHWA Program: 
Infrastructure
FHWA Subprogram: 
Pavement and Materials
FHWA Topics: 
Roads and Bridges--Pavement and Materials
TRT Terms: 
Infrastructure; Pavements; Research; Warm Mix; Paving Mixtures; Recycled Materials; Testing; Asphalt
FHWA Discipline: 
Pavement and Materials
TRB Subject Area: 
Highways, Materials, Pavements, Research

Contact Information

First Name: 
David
Last Name: 
Mensching
Telephone: 
(202) 493-3232
Email Address: 
Team: 
Infrastructure Materials Team
Office:
Office of Infrastructure Research and Development
Office Code: 
HRDI-10

Project Details

Project Description: 

This project will build ten test pavements with different quantities of Recycled Asphalt Pavement (RAP), different warm-mix asphalt (WMA) technologies, and different production temperatures. The relative ranking in fatigue cracking as well as supporting laboratory characterization will guide the recommendation.

Goals 

The key project objective is to quantify the cracking resistance of high Recycled Asphalt Pavement (RAP) mixtures that considers the use of lower temperature production with warm-mix asphalt (WMA) and recommend any limitations for combining the two technologies.

Deliverables

Deliverable Name: 
Protocol for evaluating Recycled Asphalt Pavement (RAP) mixtures using Bending Beam Rheometer (BBR) test method
Deliverable Type: 
Research report or guidelines
Deliverable Description: 
The deliverable is a test protocol in American Association of State Highway and Transportation Officials (AASHTO) draft format that uses the Bending Beam Rheometer (BBR) equipment to determine the virgin binder performance grade, or limiting Recycled Asphalt Pavement (RAP) content for asphalt mixtures containing high RAP in warm-mix asphalt (WMA).