This manual presents the information necessary for pavement design engineers to begin to Determination of Material Properties for New Paving Materials .

317 KB – 218 Pages

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© 2008, by American Association of State Highway and Transportation O˜cials. All rights reserved. ˚is book, or parts thereof, may not be reproduced in any form without written permission of the publisher. Printed in the United States of America. Publication Code: MEPDG-1 ISBN: 978-1-56051-423-7

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| iiiAMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORT ATION OFFICIALSEXECUTIVE COMMITTEE2007/2008President: Pete Rahn, Missouri Vice President: Allen D. Biehler, P.E., Pennsylvania Secretary/Treasurer: Carlos Braceras, Utah Regional Representatives REGION I David A. Cole, Maine, One-Year Term Kris Kolluri, New Jersey, Two-Year Term REGION II Stephanie Kopelousos, Florida, One-Year Term Butch Brown, Mississippi, Two-Year Term REGION III Debra Miller, Kansas, One-Year Term Kirk Steudle, Michigan, Two-Year Term REGION IV Gary Ridley, Oklahoma, One-Year Term Rhonda Faught, New Mexico, Two-Year Term Non-Voting Members Immediate Past President: Victor M. Mendez, Arizona Executive Director: John Horsley, Washington, D.C.

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iv | MechanisticŒEmpirical Pavement Design GuideR˜˚˛˝˙ ˆ Vacant (Design) Delaware Robin Davis (Design) Maryland Tim Smith (Materials) New York Wes Yang (Design) Vermont Michael Pologruto (Design) R˜˚˛˝˙ ˇ Alabama Larry Lockett (Materials) Arkansas Phillip McConnell (Design) Louisiana Je˛ Lambert (Design) North Carolina Judith Corley-Lay (Design) South Carolina Andy Johnson (Design) R˜˚˛˝˙ ˘ Kansas Andy Gisi (Design) Minnesota Curt Turgeon (Materials) Missouri Jay F. Bledsoe (Design) Ohio Aric Morse (Design) Iowa Chris Brakke (Design) R California Bill Farnbach (Design) Colorado Richard Zamora (Design) Oklahoma Je˛ Dean (Design) Vacant (Design) Wyoming Rick Harvey (Materials) 2007/2008JOINT TECHNICAL COMMITTEE ON PAVEMENTSO AASHTO Liaison Keith Platte and Ken Kobetsky Standing Committee on Aviation Gary Harris, IA FHWA Pete Stephanos Port Authority of New York and New Jersey Vacant TRB Amir Hanna Dan Dawood (Chair) Pennsylvania Linda Pierce (Vice Chair) Washington

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Preface | vPREFACE˚is document describes a pavement design methodology that is based on engineering mechanics and has been validated with extensive road test performance data. ˚is methodology is termed mechanistic- empirical (M-E) pavement design, and it represents a major change from the pavement design methods in practice today. From the early 1960s through 1993, all versions of the American Association for State Highway and Transportation O˜cials (AASHTO) Guide for Design of Pavement Structures were based on limited em -pirical performance equations developed at the AASHO Road Test in the late 1950s. ˚e need for and bene˝ts of a mechanistically based pavement design procedure were recognized when the 1986 AAS -HTO Guide for Design of Pavement Structures was adopted. To meet that need, the AASHTO Joint Task Force on Pavements, in cooperation with the National Cooperative Highway Research Program (NCHRP) and the Federal Highway Administration ( FHWA), sponsored the development of an M-E pavement design procedure under NCHRP Project 1-37A. A key goal of NCHRP Project 1-37A, Development of the 2002 Guide for Design of New and Rehabilitat -ed Pavement Structures: Phase II was the development of a design guide that utilized existing mechanis -tic-based models and data re˙ecting the current state-of-the-art in pavement design. ˚is guide was to address all new (including lane reconstruction) and rehabilitation design issues, and provide an equitable design basis for all pavement types. ˚e Mechanistic-Empirical Pavement Design Guide (MEPDG), as it has now become known, was com -pleted in 2004 and released to the public for review and evaluation. A formal review of the products from NCHRP Project 1-37A was conducted by the NCHRP under Project 1-40A. ˚is review has resulted in a number of improvements, many of which have been incorporated into the MEPDG under NCHRP Project 1-40D. Project 1-40D has resulted in Version 1.0 of the MEPDG software and an updated design guide document. Version 1.0 of the software was submitted in April 2007 to the NCHRP, FHWA, and AASHTO for further consideration as an AASHTO provisional standard and currently e˛orts are underway on Version 2.0 of the software. Simultaneously, a group of state agencies, termed lead states, was formed to share knowledge regarding the MEPDG and to expedite its implementation. ˚e lead states and other interested agencies have already begun implementation activities in terms of sta˛ training, collection of input data (materials library, tra˜c library, etc.), acquiring of test equipment, and setting up ˝eld sec -tions for local calibration. ˚is manual presents the information necessary for pavement design engineers to begin to use the MEPDG design and analysis method. ˚e FHWA has a web site for knowledge exchange for the MEPDG (

317 KB – 218 Pages