Accession Number : ADA620913


Title :   Evaluation of Procedures for Backcalculation of Airfield Pavement Moduli


Descriptive Note : Final rept. Oct 2013-Aug 2014


Corporate Author : ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB


Personal Author(s) : Priddy, Lucy P ; Bianchini, Alessandra ; Gonzalez, Carlos R ; Dossett, Cayce S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a620913.pdf


Report Date : Aug 2015


Pagination or Media Count : 164


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 backcalculate pavement layer moduli, which are then used to determine the number of allowable passes and the allowable load that the pavement is able to support. The current airfield pavement analysis procedures, including the processes used for backcalculating layer moduli, were reviewed and compared to processes utilized by other transportation agencies and those proposed by academia. Airfield deflection data were then analyzed using current and proposed backcalculation procedures to provide recommendations for improving both the software and processes used by the USAF in evaluating the structural capacity of airfield pavement assets. This report summarizes the literature review, presents analyses of FWD/HWD data, and provides recommendations for improving the procedures used for backcalculation.


Descriptors :   *COMPUTER PROGRAMS , *LANDING FIELDS , *PAVEMENTS , *STRUCTURAL INTEGRITY , DEFLECTION


Subject Categories : Terminal Flight Facilities
      Computer Programming and Software
      Civil Engineering
      Structural Engineering and Building Technology
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE