Concrete Overlay Field Application Program Iowa Task Report US 18 Concrete Overlay Construction Under Traffic, May 2012

(2012) Concrete Overlay Field Application Program Iowa Task Report US 18 Concrete Overlay Construction Under Traffic, May 2012. Transportation, Department of

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Abstract

The National Concrete Pavement Technology Center, Iowa Department of Transportation, and Federal Highway Administration set out to demonstrate and document the design and construction of portland cement concrete (PCC) overlays on two-lane roadways while maintaining two-way traffic. An 18.82 mile project was selected for 2011 construction in northeast Iowa on US 18 between Fredericksburg and West Union. This report documents planning, design, and construction of the project and lessons learned. The work included the addition of subdrains, full-depth patching, bridge approach replacement, and drainage structural repair and cleaning prior to overlay construction. The paving involved surface preparation by milling to grade and the placement of a 4.5 inch PCC overlay and 4 foot of widening to the existing pavement. In addition, the report makes recommendations on ways to improve the process for future concrete overlays.

Item Type: Newsletter
Keywords: Transportation, overlays under traffic, pavement rehabilitation, PCC overlays, two-lane construction traffic
Subjects: Transportation > Research
Transportation > Roads and highways
Transportation > Design and Construction
Transportation
ID Code: 13635
Deposited By: Margaret Barr
Deposited On: 22 Aug 2012 17:54
Last Modified: 22 Aug 2012 17:54
URI: http://publications.iowa.gov/id/eprint/13635

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