01474744

Component

https://doi.org/10.3141/2371-01

http://scholar.google.com...niel&publication_year=2013

This paper summarizes the findings of several case studies on the long-term performance of recycled asphalt pavement (RAP). The goal of these studies was to provide the paving community with documentation on the long-term performance of roadway sections with a high amount of RAP compared with virgin sections on the basis of available information. Roadway sections that contained more than 20% RAP and that had been in place for at least 10 years were identified across the United States with the help of local agencies. The long-term performances of these various recycled sections were compared directly with mixtures made with similar virgin materials via measurements of distress criteria. These distress criteria included rutting, cracking, ride quality, and any overall performance rating that the local agencies used to evaluate their pavement sections. The virgin sections were placed in the same general location and time frame as the recycled sections. The sections with high RAP content, on average, tended to exhibit a lower ride quality, more cracking, and better rutting resistance than the virgin sections, but the differences were not always statistically significant. The differences between the performance ratings for RAP and virgin pavements were within 5% to 10%. Overall, pavement sections with a high RAP content performed at a level comparable to that of virgin sections in these case studies.

01500961

13-1264

English

pp 1–12

2013

Transportation Research Record: Journal of the Transportation Research Board

9780309286947

Print

Figures (10) ; References (12) ; Tables (3)

Asphalt concrete pavements; Asphalt mixtures; Case studies; Pavement distress; Pavement performance; Recycled materials

Long-Term Pavement Performance Program

Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways

PRP, TRIS, TRB, ATRI

Feb 5 2013 12:21PM

• Asphalt Binder Contribution to Mixture Workability and Application of Asphalt Lubricity Test to Estimate Compactability Temperatures for Warm-Mix Asphalt
• Assessment of Warm-Mix Asphalt for Heavy Traffic Airfields
• Effects of Changing Virgin Binder Grade and Content on High Reclaimed Asphalt Pavement Mixture Properties
• Evaluation of Environmental Susceptibility of Bituminous Mastic Viscosity as a Function of Mineral and Biomass Fillers
• Forensic Study on the Cracking of New Jersey’s Long-Term Pavement Performance Specific Pavement Study Sections
• Influence of Hydrogreen Bioasphalt on Viscoelastic Properties of Reclaimed Asphalt Mixtures
• Laboratory Evaluation of Asphalt Mixtures That Contain Biobinder Technologies
• Low-Temperature Performance Characterization of Biomodified Asphalt Mixtures That Contain Reclaimed Asphalt Pavement
• Modeling of the Resilient Modulus for Recycled Asphalt Pavement Applications in Base Course Layers
• Moisture Damage Evaluation of Asphalt Mixes That Contain Mining Byproducts: Results from Traditional and Fracture Energy Tests
• Performance Characterization of Asphalt Mixtures at High Asphalt Binder Replacement with Recycled Asphalt Shingles
• Performance Enhancement of Crumb Rubber–Modified Asphalts Through Control of the Developed Internal Network Structure
• Reacted and Activated Rubber: Elastomeric Asphalt Extender