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Title:

Performance Based Specifications for High Performance Thin Overlay Mixtures Incorporating Reclaimed Asphalt Pavement

Accession Number:

01506459

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

A pilot specification for high performance thin overlay (HiPO) mixtures utilizing a highly modified asphalt binder (HiMA) was developed by State Department of Transportation (DOT) agencies in the Northeast Pavement Preservation Partnership (NEPPP), the Pennsylvania Asphalt Pavement Association (PAPA), academia, and industry. The pilot specification allows the incorporation of Reclaimed Asphalt Pavement (RAP) in the mixture. Also, it addresses surface preparation, material properties, tack coat, mixture design requirements, RAP testing requirements, and mixture performance criteria in terms of reflective cracking, thermal cracking, fatigue cracking, and rutting. The National Center for Pavement Preservation (NCPP) published and posted the pilot specification on the AASHTO Transportation System Preservation Technical Services Program (AASHTO TSP2) web site. In 2011, the state transportation agencies of Minnesota (MN), New Hampshire (NH), and Vermont (VT) placed demonstration projects of the HiPO mixture incorporating up to 25% RAP. This paper presents the evaluation of the laboratory performance of plant produced mixtures from field project of three state DOTs (MN, NH, and VT). Based on the evaluation of the mixtures and field observations, recommendations were provided to refine the pilot specification. It was recommended to put more emphasis on the testing of the RAP materials, as it showed a significant impact on the performance of the mixtures. Furthermore, surface preparation of the existing pavement impacted the performance of the HiPO mixture. Finally, to make the specifications universal, alternative tests were proposed.

Supplemental Notes:

This paper was sponsored by TRB committee AFD70 Pavement Rehabilitation. Alternate title: Performance-Based Specifications for High-Performance Thin Overlay Mixtures Incorporating Reclaimed Asphalt Pavement.

Monograph Accession #:

01503729

Report/Paper Numbers:

14-1690

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Mogawer, Walaa S
Austerman, Alexander J
Kluttz, Robert
Mohammad, Louay N

Pagination:

16p

Publication Date:

2014

Conference:

Transportation Research Board 93rd Annual Meeting

Location: Washington DC
Date: 2014-1-12 to 2014-1-16
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Geographic Terms:

Minnesota; New Hampshire; Vermont

Subject Areas:

Highways; Materials; Pavements; I31: Bituminous Binders and Materials

Source Data:

Transportation Research Board Annual Meeting 2014 Paper #14-1690

Files:

TRIS, TRB, ATRI

Created Date:

Jan 27 2014 2:36PM