Development of Design Guide for Thin and Ultrathin Concrete Overlays of Existing Asphalt Pavements

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Development of Design Guide for Thin and Ultrathin Concrete Overlays of Existing Asphalt Pavements http://www.pooledfund.org/Details/Study/389 Record Type: RiP Thin (TCOAP) and ultra-thin (UTCOAP) concrete overlays of existing asphalt pavement (also known as whitetoppings) are a pavement rehabilitation option that has been increasing in popularity in the U.S. over the past 15 years. The primary purpose of this project is to create a unified national design guide for thin and ultrathin concrete overlays of existing asphalt pavements. This consists of the following distinct objectives: (1) Study and understand the field performance history of TCOAP and UTCOAP as demonstrated by various research test sections. These include current (and future) test sections at the Minnesota Road Research Facility (MnROAD), accelerated loading facility test sections (FHWA), and other test sections installed and monitored by various local, national and international agencies. (2) Develop a design guide for concrete overlays of existing asphalt pavements utilizing existing validated performance models, as well as new analytical models derived to address design aspects not currently considered in existing methods. The design guide will be based on mechanistic-empirical principles, including the effects of various concrete overlay and existing asphalt materials, panel thickness and geometry, joint opening and stiffness, traffic loads, and climates under which they must perform. (3) Create a user-friendly design guide software program and user's manual. The program format should be such that it could become a module in the future national Mechanistic-Empirical Pavement Design Guide (MEPDG) for highway pavements. Start date: 2012/2/27 Status: Programmed Secondary Number: TPF-5(165) Total Dollars: 515200 Source Organization: Federal Highway Administration Date Added: 02/27/2012 Index Terms: Concrete overlays, Ultrathin concrete overlays, Asphalt pavements, Pavement maintenance, Whitetopping, Test sections, Mechanistic-Empirical Pavement Design Guide,

Sponsor Organization		Project Manager
Minnesota Department of Transportation http://www.dot.state.mn.us/ Transportation Building 395 John Ireland Boulevard St Paul, MN 55155-1899 USA Phone: (651) 366-3765 Mississippi Department of Transportation http://www.goMDOT.com/ P.O. Box 1850 401 North West Street Jackson, MS 39215-1850 USA Phone: (601) 359-7001 Fax: (601) 359-7050 Missouri Department of Transportation http://www.modot.org 1617 Missouri Boulevard P.O. Box 270 Jefferson City, MO 65102 USA Phone: (888) ASK-MODOT Fax: (573) 526-4324 Pennsylvania Department of Transportation http://www.dot.state.pa.us/ Keystone Building 400 North Street Harrisburg, PA 17120 USA Phone: (717) 787-5796 Fax: (717) 783-9152 Texas Department of Transportation http://www.dot.state.tx.us/ 125 E. 11th Street Austin, TX 78701-2483 U.S. Phone: (800) 558-9368 New York State Department of Transportation http://www.dot.state.ny.us/ 50 Wolf Road Albany, NY 12232 USA Phone: (518) 457-6195 South Dakota Department of Transportation http://www.state.sd.us/dot/ 700 East Broadway Avenue Becker-Hansen Building Room 122 Pierre, SD 57501-2856 USA Phone: (605) 773-3292 Fax: (605) 773-4713 Iowa Department of Transportation 800 Lincoln Way Ames, IA 50010 USA Phone: (515) 239-1205 Fax: (515) 239-1766 Kansas Department of Transportation http://www.ksdot.org Eisenhower State Office Building 700 SW Harrison Street Topeka, KS 66603-3754 USA Phone: (785) 296-3566 North Carolina Department of Transportation www.ncdot.org/doh/preconstruct/tpb/research/ Research and Development 1549 Mail Service Center Raleigh, NC 27699-1549 USA Phone: (919) 508-1790 Fax: (919) 715-0137		Burnham, Tom Phone: (651) 366-5452 Email: Tom.Burnham@state.mn.us

Performing Organization		Principal Investigator


Subjects
Highways Design Pavements