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Title:

Effectiveness of Crack Relief Techniques to Mitigate Reflective Cracking in Asphalt Overlaid Concrete Pavement

Accession Number:

01591971

Record Type:

Component

Abstract:

This study focused primarily on evaluating the effectiveness of five crack relief treatments to mitigate reflective cracking of asphalt overlaid concrete pavement including 0.5 inch Superpave 9.5 mm Nominal Maximum Aggregate Size (NMAS) structural course (SP-9.5), 1.5 inch SP-12.5, 2.5 inch SP-12.5, 1.0 inch Open-Graded Crack Relief (OGCR), and 0.5 inch Asphalt Rubber Membrane Interlayer (ARMI). Pavement performance was evaluated in terms of deflection, ride quality, rutting and cracking. Also, an evaluation of cracking performance based on the dissipated energy concept using Falling Weight Deflectometer (FWD) load-deflection time history data was presented. The results indicated that 0.5 inch SP-9.5, 1.5 inch SP-12.5, and 2.5 inch SP-12.5 treatments show relatively greater potential for reflective crack mitigation efficiency than the 1 inch OGCR or 0.5 inch ARMI. More reflective transverse cracks corresponding to the Portland Cement Concrete (PCC) base slab joints occurred in areas with thinner Asphalt Concrete (AC) overlay and were most predominant in the 0.5 inch ARMI section. Areas with more transverse cracks had relatively greater dissipated energy indicating a higher potential for pavement deterioration and/or damage rate. Therefore, the dissipated energy approach can be used as a reliable indicator of pavement cracking performance. Thinner AC overlay may reduce the reflective cracking mitigation potential of crack relief layers.

Supplemental Notes:

This paper was sponsored by TRB committee AFD70 Standing Committee on Pavement Rehabilitation.

Monograph Accession #:

01584066

Report/Paper Numbers:

16-1609

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Chun, Sanghyun
Nazef, Abdenour
Offei, Edward
Greene, James
Choubane, Bouzid

Pagination:

16p

Publication Date:

2016

Conference:

Transportation Research Board 95th Annual Meeting

Location: Washington DC, United States
Date: 2016-1-10 to 2016-1-14
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Photos

Subject Areas:

Highways; Maintenance and Preservation; Pavements

Source Data:

Transportation Research Board Annual Meeting 2016 Paper #16-1609

Files:

TRIS, TRB, ATRI

Created Date:

Jan 12 2016 4:42PM