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Asphalt pavement recycling has grown dramatically over the last few years as a viable technology to rehabilitate existing asphalt pavements. Iowa's current Cold In-place Recycling (CIR) practice utilizes a generic recipe specification to define the characteristic of the CIR mixture. As CIR continues to evolve, the desire to place CIR mixture with specific engineering properties requires the use of a mix design process. A new mix design procedure was developed for Cold In-place Recycling using foamed asphalt (CIR-foam) in consideration of its predicted field performance. The new laboratory mix design process was validated against various Reclaimed Asphalt Pavement (RAP) materials to determine its consistency over a wide range of RAP materials available throughout Iowa. The performance tests, which include dynamic modulus test, dynamic creep test and raveling test, were conducted to evaluate the consistency of a new CIR-foam mix design process to ensure reliable mixture performance over a wide range of traffic and climate conditions. The "lab designed" CIR will allow the pavement designer to take the properties of the CIR into account when determining the overlay thickness.
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Validation of the mix design process for cold in-place rehabilitation using foamed asphalt
2007, Public Policy Center, University of Iowa
in English
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Book Details
Edition Notes
Title from cover.
"June 15, 2007."
Includes bibliographical references (p. 231-232).
Final report.
Also available via the Internet.
Sponsored by the Iowa Highway Research Board IHRB report TR-474
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Feedback?December 20, 2020 | Edited by MARC Bot | import existing book |
December 3, 2010 | Edited by Open Library Bot | Added subjects from MARC records. |
January 21, 2010 | Edited by WorkBot | add subjects and covers |
December 11, 2009 | Created by WorkBot | add works page |