United States Department of Transportation
i
Alternatives to Full-Depth Patching on Resurfacing Projects
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1993-09-01
[PDF-1.17 MB]
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TRIS Online Accession Number:00640034
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Abstract:The vast majority of Illinois' non-interstate network is constructed of jointed Portland cement concrete (PCC). Typically, Illinois' first significant rehabilitation efforts for jointed PCC pavements are in the form of full-depth bituminous concrete or undoweled PCC patches, followed by a 2.5-in. bituminous concrete policy overlay. The full-depth bituminous concrete patches often rut or hump, and the full-depth undoweled PCC patches often settle, rock, or pump, resulting in a rough-riding overlay. The objectives of this study were to develop alternatives to conventional full-depth patching of PCC pavements on resurfacing projects, to evaluate their performance, and to determine their cost-effectiveness. The following alternatives were studied: full-depth bituminous concrete patches, partial-depth bituminous concrete patches, full-depth undoweled PCC patches, Roadglas (a woven fiberglass repair system marketed by Owens-Corning Fiberglas Corporation) over joints and cracks in lieu of patching, and GlasGrid (a self-adhesive fiberglass mesh produced by Bayex, a division of Bay Mills Limited) over joints, cracks, and patches, all with a 2.5-in. bituminous concrete policy overlay. Reducing patching quantities and applying the "savings" to increasing the overlay thickness was also studied.
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