The Transportation Research Board; the National Academies of Sciences, Engineering, and Medicine; and the sponsors of the National Cooperative Highway Research Program do not endorse products or manufacturers. The National Academy of Medicine (formerly the Institute of Medicine) was established in 1970 under the charter of the National Academy of Sciences to advise the nation on medical and health issues. The Academies also encourage education and research, recognize outstanding contributions to knowledge, and increase public understanding in matters of science, engineering, and medicine.Trade or manufacturersâ names appear herein solely because they are considered essential to the object of the report. Members are elected by their peers for distinguished contributions to medicine and health. Learn more about the National Academies of Sciences, Engineering, and Medicine at
The program, however, is intended to complement, rather than to substitute for or duplicate, other highway research programs.
Published reports of the NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM are available from Transportation Research Board Business Office 500 Fifth Street, NW Washington, DC 20001 and can be ordered through the Internet by going to then searching for TRB Printed in the United States of America NCHRP REPORT 819 Project 18-16 ISSN 0077-5614 ISBN 978-0-309-37562-7 Library of Congress Control Number 2016947690 Â© 2016 National Academy of Sciences. COPYRIGHT INFORMATION Authors herein are responsible for the authenticity of their materials and for obtaining written permissions from publishers or persons who own the copyright to any previously published or copyrighted material used herein.
Learn more about the Transportation Research Board at C O O P E R A T I V E R E S E A R C H P R O G R A M S AUTHOR ACKNOWLEDGMENTS The research reported herein was performed under NCHRP Project 18-16 by the University of Nebraska- Lincoln (UNL) and Iowa State University (ISU); Dr. Chua, Vulcan Materials Company, Herndon, VA Donald J.
George Morcous, Professor of Construction Engineer- ing at UNL, was the principal investigator. Kejin Wang, Professor of Civil Engineering at ISU; Dr. Taylor, Director of the National Concrete Pavement Technology Center at ISU; Dr. Shah, Consultant; Micheal Asaad, Research Assistant and Ph. Candidate at UNL; and Xuhao Wang, Post-Doctoral Associate at ISU. Jenks, Director, Cooperative Research Programs Christopher Hedges, Manager, National Cooperative Highway Research Program Amir N. Janssen, Seattle, WA Jugesh Kapur, Burns and Mc Donnell, Bismarck, ND Kristin L. Myint Lwin, Olympia, WA Madhwesh Raghavendrachar, California DOT, Sacramento, CA Anton K. Trautman, Missouri DOT, Jefferson City, MO Susan N.
These problems are best studied through a coordinated program of cooperative research.