Use of Fine-Graded Asphalt Mixtures
Thin hot mix asphalt (HMA) overlays are more economical than traditional overlays and mitigate problems with curb/gutter height restrictions. Though still more expensive than surface treatments, these mixes should not have chip-loss problems and, because of the fine texture, are relatively quiet. When properly designed and constructed, they may provide a service life comparable to traditional mixes. Another option for thin pavement maintenance is slurry overlay systems. These emulsion- or cement-based materials are spread or sprayed onto the pavement surface at ambient temperatures, do not require compaction, and can be opened to traffic after a short time. This research (1) monitored existing thin overlay performance, (2) developed new thin overlay specifications that districts can easily and cost-effectively implement, (3) worked with districts to construct new thin overlay test sections, and to a lesser extent (4) evaluated various slurry overlay systems in similar applications.
- Summary URL:
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Corporate Authors:
Texas A&M Transportation Institute
Texas A&M University System
3135 TAMU
College Station, TX United States 77843-3135Texas Department of Transportation
Research and Technology Implementation Office, P.O. Box 5080
Austin, TX United States 78763-5080Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Scullion, Tom
- Estakhri, Cindy
- Wilson, Bryan T
- Publication Date: 2013
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Project Summary
- Pagination: 2p
Subject/Index Terms
- TRT Terms: Bituminous overlays; Hot mix asphalt; Mix design; Pavement performance; Slurry seals
- Geographic Terms: Texas
- Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 01481638
- Record Type: Publication
- Report/Paper Numbers: 0-6615
- Files: TRIS, ATRI, USDOT, STATEDOT
- Created Date: May 20 2013 3:30PM