MINIMIZING REFLECTION CRACKING OF PAVEMENT OVERLAYS
Reflection cracks are fractures in a pavement overlay that are the result of, and reflect, the crack of joint pattern in the underlying layer. Reflections cracks can cause early deterioration of an overlay, thereby increasing maintenance costs and decreasing the useful life of the overlay. Methods to minimize reflection cracking of asphalt concrete overlays include (a) greater thickness of overlay, (b) changes in the viscosity of the asphalt, (c) additives incorporated into the asphalt concrete mix, (d) treatments to the existing pavement before overlaying and (e) incorporating stress relieving layers. The results of the various tests using these methods are presented.
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Supplemental Notes:
- Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Sherman, G
- Publication Date: 1982-9
Language
- English
Media Info
- Features: Appendices; Figures; References; Tables;
- Pagination: 38 p.
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Serial:
- NCHRP Synthesis of Highway Practice
- Issue Number: 92
- Publisher: Transportation Research Board
- ISSN: 0547-5570
Subject/Index Terms
- TRT Terms: Asphalt; Asphalt mixtures; Maintenance management; Overlays (Pavements); Reflection cracking
- Uncontrolled Terms: Maintenance costs
- Old TRIS Terms: Asphalt viscosity; Reflection cracks; Stress layers
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 00369277
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: May 10 1996 12:00AM