Enhanced Analysis of Falling Weight Deflectometer Data for Use With Mechanistic-Empirical Flexible Pavement Design and Analysis and Recommendations for Improvements to Falling Weight Deflectometers

Chatti, Karim; Kutay, M. Emin; Lajnef, Nizar; Zaabar, Imen; Varma, Sudhir; Lee, Hyung Suk; Michigan State University

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Enhanced Analysis of Falling Weight Deflectometer Data for Use With Mechanistic-Empirical Flexible Pavement Design and Analysis and Recommendations for Improvements to Falling Weight Deflectometers

2017-03-01
By Chatti, Karim ; Kutay, M. Emin ; Lajnef, Nizar ; ...

[PDF-12.41 MB]

Select the Download button to view the document

This document is over 5mb in size and cannot be previewed

English

Details You May Also Like

Details:

Creators:

Chatti, Karim ; Kutay, M. Emin ; Lajnef, Nizar ; Zaabar, Imen ; Varma, Sudhir ; ... More +

Chatti, Karim ; Kutay, M. Emin ; Lajnef, Nizar ; Zaabar, Imen ; Varma, Sudhir ; Lee, Hyung Suk Less -
Corporate Creators:

Michigan State University
Corporate Contributors:

United States. Federal Highway Administration. Office of Acquisition Management
Subject/TRT Terms:

[+]

Algorithms Analysis Backcalculation Data Analysis Data And Information Technology Data Collection Design Falling Weight Deflectometer Falling Weight Deflectometers Flexible Pavements Forward Solution Highways Mechanistic-empirical Pavement Design Mechanistic-Empirical Pavement Design Guide Pavement Management Pavements Recommendations Time Domain Analysis Viscoelastic Analysis Viscoelastic Materials
Publication/ Report Number:

FHWA-HRT-15-063
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

01633392
Edition:

Final Report
Corporate Publisher:

Turner-Fairbank Highway Research Center ; United States. Federal Highway Administration. Office of Research, Development, and Technology

Turner-Fairbank Highway Research Center ; United States. Federal Highway Administration. Office of Research, Development, and Technology Less -
Abstract:

This report describes the efforts undertaken to review the status of falling weight deflectometer (FWD) equipment, data collection, analysis, and interpretation, including dynamic backcalculation, as they relate to the models and procedures incorporated in the Mechanistic-Empirical Pavement Design Guide. The work conducted in this project resulted in the following: (1) Development of a backcalculation scheme (BACKLAVA) in the time domain using a quasi-static model (LAVA) as its forward solution and genetic algorithm (GA) as its search engine. BACKLAVA is a backcalculation algorithm for a constant asphalt concrete (AC) layer temperature. (2) Development of a backcalculation scheme (BACKLAVAP) in the time domain using a quasi-static model (LAVAP) as its forward solution and GA as its search engine. BACKLAVAP is a backcalculation algorithm for a temperature profile in an AC layer. (3) Development of a backcalculation scheme (BACKLAVAN) in the time domain using a quasi-static model (LAVAN) as its forward solution and GA as its search engine. BACKLAVAN is a backcalculation algorithm for a viscoelastic AC layer and a nonlinear base layer. (4) Development of a backcalculation scheme (DYNABACK-VE) in the time domain using a time-domain viscoelastic dynamic model (ViscoWave-II) as its forward solution and a hybrid approach (GA and Levenberg-Marquardt algorithm) as its search engine. DYNABACK-VE is a backcalculation algorithm for a viscoelastic AC layer with temperature profile and linear unbound layers. (5) Short list of recommendations for FWD equipment enhancements. The tools developed in this project are standalone applications that could be used on most computers.
Format:

PDF
Funding:

DTFH61-11-C-00026
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:33dadd97b6f5f10870c10b1e62f2e964dbd3e297272dafeb090bb899502b4523
Download URL:

https://rosap.ntl.bts.gov/view/dot/35823/dot_35823_DS1.pdf
File Type:

No Additional Files

More +

Enhanced Analysis of Falling Weight Deflectometer Data for Use With Mechanistic-Empirical Flexible Pavement Design and Analysis and Recommendations for Improvements to Falling Weight Deflectometers

Details:

Supporting Files

You May Also Like