U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

Overview

 

Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-11-0020
Project Name:   Enhanced Analysis of Falling Weight Deflectometer Data for Use With the Mechanistic-Empirical Flexible Pavement Design and Analysis and Recommendations for Improvements to Falling Weight Deflectometer
Project Status:   Completed
Start Date:  March 30, 2011
End Date:  November 30, 2013
Contact Information
Last Name:  Sivaneswaran
First Name:  Nadarajah (Siva)
Telephone:  202-493-3147
E-mail:  nadarajah.sivaneswaran@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Infrastructure Analysis and Construction Team [HRDI-20]
Program:   Innovative Pavement Research and Deployment
Project detail
Roadmap/Focus area(s):   Infrastructure Research and Technology Strategic Plan and Roadmap
Project Description:   This project will investigate the ideal loading and response information needed from Falling Weight Deflectometer (FWD) testing to reliably evaluate inservice pavements for use in mechanistic-empirical pavement design and analysis, and recommend enhancements to the current FWD technology and analysis to meet those needs.
Goals:  
Investigate the feasibility of developing the damaged master curve and unbound material properties directly from dynamic backcalculation of Falling Weight Deflectometer (FWD) data, with consideration for enhancements to FWD technology for use in the Mechanistic-Empirical Pavement Design Guide (MEPDG) flexible pavement analysis and rehabilitation design. The effort shall include a comprehensive theoretical analysis to identify the ideal loading and response information needed, current FWD technology and analysis methods and their limitations to meet those requirements, and recommendations for enhancements to overcome those limitations.
Product Type:   Research report
Test Methodology:   Theoretical modeling, numerical analysis, validation using field data
Expected Benefits:   The expected benefits are a methodology for the determination of a master curve for in-service flexible pavements, and recommended enhancements to Falling Weight Deflectometer for advancing in-service pavement testing.
Deliverables: Name: Final report documenting the entire study effort.
Product Type(s): Research report
Description: The deliverable is a final report documenting the entire study effort, including methodologies for developing the damaged master curve and unbound material properties directly from dynamic backcalculation of the Falling Weight Deflectometer (FWD) data and recommended enhancements to FWD equipment to meet the data needed for the developed methodology.
FHWA Topics:   Research/Technologies--Turner-Fairbank Highway Research Center (TFHRC)
TRT Terms:   Infrastructure
Pavements
Research
Pavement Design
Falling Weight Deflectometers
Flexible Pavements
FHWA Disciplines:   Pavement and Materials
Subject Areas:   Pavements

 

Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000
Turner-Fairbank Highway Research Center | 6300 Georgetown Pike | McLean, VA | 22101