ULTRA-THIN CONCRETE OVERLAYS ON EXISTING ASPHALT PAVEMENT
In 1991, an experimental project was undertaken on a Louisville, Kentucky, landfill access road. The aim was to evaluate the feasibility of concrete whitetopping overlays less than 4 inches thick for residential streets, parking, and other low-volume applications. The landfill site provided accelerated loading conditions and weight-monitored truck traffic data. Two sections with different thicknesses were built, one 2 inches and the other 3.5 inches. The experiment also employed unconventional 6-foot and 2-foot joint patterns. These constituted the major variables of the test project. The landfill traffic conditions necessitated fast track construction of the thin overlay experiment, with the access road closed over 1 weekend and giving just a 41.5 hour window to complete the construction work. This paper describes the ultra-thin overlay performance, discusses the influence of the joint spacing and the overlay bonding on the bending stress conditions within the overlay slabs, and also documents the design and construction of the overall project.
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Corporate Authors:
Purdue University
School of Civil Engineering, 550 Stadium Mall Drive
West Lafeyette, IN United States 47907 -
Authors:
- Risser Jr, R J
- Lahue, S P
- Voigt, G F
- Mack, James W
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Conference:
- Fifth International Conference on Concrete Pavement Design and Rehabilitation
- Location: Purdue University, West Lafayette, Indiana
- Date: 1993-4-20 to 1993-4-22
- Publication Date: 1993
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 247-254
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Serial:
- Volume: 2
Subject/Index Terms
- TRT Terms: Asphalt pavements; Conferences; Highway engineering; Highway transportation; Low volume roads; Overlays (Pavements); Pavement design; Pavement joints; Pavement performance; Surface course (Pavements); Whitetopping
- Geographic Terms: Kentucky
- Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;
Filing Info
- Accession Number: 00822995
- Record Type: Publication
- Files: TRIS, ATRI
- Created Date: Jan 7 2002 12:00AM