Evaluation of procedures for backcalculation of airfield pavement moduli

ERDC/GSL TR-15-31 Evaluation of Procedures for Backcalculation of Airfield Pavement Moduli Geotechnical and Structures Laboratory Lucy P. Priddy, Alessandra Bianchini, Carlos R. Gonzalez, and Cayce S. Dossett August 2015 Approved for public release; distribution is unlimited. The U.S. Army Engineer Research and Development Center (ERDC) solves the nation’s toughest engineering and environmental challenges. ERDC develops innovative solutions in civil and military engineering, geospatial sciences, water resources, and environmental sciences for the Army, the Department of Defense, civilian agencies, and our nation’s public good. Find out more at www.erdc.usace.army.mil. To search for other technical reports published by ERDC, visit the ERDC online library at http://acwc.sdp.sirsi.net/client/default. ERDC/GSL TR-15-31 August 2015 Evaluation of Procedures for Backcalculation of Airfield Pavement Moduli Lucy P. Priddy and Carlos R. Gonzalez Geotechnical and Structures Laboratory U.S. Army Engineer Research and Development Center 3909 Halls Ferry Road Vicksburg, MS 39180-6199 Alessandra Bianchini 139 Barnes Drive, Suite 1 Air Force Civil Engineer Center Tyndall Air Force Base, FL 32403-5319 Cayce S. Dossett U.S. Air Force Academy 2304 Cadet Drive Suite 3100 U.S. Air Force Academy, CO 80840-5016 Final report Approved for public release; distribution is unlimited. Prepared for Headquarters, Air Force Civil Engineer Center Tyndall Air Force Base, FL 32403-5319 ERDC/GSL TR-15-31 ii Abstract During the period October 2013 through August 2014, research was conducted at the U.S. Army Engineer Research and Development Center (ERDC) in Vicksburg, MS, to improve the U.S. Air Force’s (USAF’s) airfield pavement structural evaluation procedures. Determining the structural integrity of airfield pavement relies on the analysis of pavement deflection data collected using the falling weight deflectometer (FWD) or heavy weight deflectometer (HWD). These deflection data are used to backcalc