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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations



Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-10-0085
Project Name:   Extension of Flexible Pavement Life With Preservation to Resist Aging and Embrittlement
Project Status:   Active
Start Date:  May 5, 2010
End Date:  December 31, 2012
Contact Information
Last Name:  Gibson
First Name:  Nelson H
Telephone:  202-493-3073
E-mail:  nelson.gibson@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Pavement Materials Team [HRDI-10]
Program:   IRT (Infrastructure Research and Technology)
Laboratory:   Bituminous Mixtures Laboratory
Project detail
Roadmap/Focus area(s):   Infrastructure Research and Technology Strategic Plan and Roadmap
Project Description:   Mill-and-fill test pavement┬ásite, measure full-scale cracking performance with and without the treatment.
(1) Validate performance new 4.75 mm Superpave (Superior PERforming Asphalt PAVEments) mix design to ensure minimal rutting and cracking performance.
(2) Gather laboratory engineering performance characteristics.
(3) Quantify ability of thin overlay to renew surface and delay top-down cracking.
Product Type:   Data
Research report
Test Methodology:   Combination of laboratory scale and full-scale accelerated pavement testing.
Expected Benefits:   Quantified pavement life extension.
Deliverables: Name: Report "Top Down Crack Resistance of Aged Pavement with 4.75 mm NMAS Thin Overlay"
Product Type(s): Research report, Data
Description: Technical report.
FHWA Topics:   Roads and Bridges--Pavement and Materials
TRT Terms:   Bituminous Overlays
Pavement Cracking
Flexible Pavements
Cracking of Asphalt
Aging Materials
FHWA Disciplines:   Pavement and Materials
Subject Areas:   Materials


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