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Title:

PREDICTION OF REMAINING LIFE OF ASPHALT PAVEMENT WITH FALLING-WEIGHT DEFLECTOMETER MULTILOAD-LEVEL DEFLECTIONS

Accession Number:

00968511

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States
Order URL: http://www.trb.org/Main/Public/Blurbs/154686.aspx

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Order URL: http://worldcat.org/isbn/0309085977

Abstract:

The development of prediction methods for the remaining life of flexible pavements using falling-weight deflectometer (FWD) multiload-level deflections is presented. Pavement response models and pavement performance models were used in developing this procedure. The pavement response models were designed to predict critical pavement responses from surface deflections and deflection basin parameters. The pavement performance models were used to develop the relationships between critical pavement responses obtained from pavement response models and actual pavement performance. Pavement distress data and FWD multiload-level deflection data obtained from the Long-Term Pavement Performance database were used to verify the performance prediction procedure. It was found that the performance of fatigue cracking can be predicted using the proposed procedure except for pavements with high and rapidly increasing cracking in wet-freeze regions. Such trends may be due to environment-induced distresses such as low-temperature cracking, permanent deformation of unbound layers, or both, during the spring thaw period. Predicted rut depths using both single-load and multiload-level deflections show good agreement with measured rut depths over a wide range of rutting potentials. However, the procedure using single-load-level deflections consistently underpredicts the rut depths. This observation demonstrates that the rutting prediction procedure using multiload-level deflections can estimate an excessive level of rutting quite well and thus improve the prediction quality of rutting potential in flexible pavements.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1860, Pavement Assessment, Monitoring, and Evaluation 2003.

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Park, H M
Kim, Y R

Pagination:

p. 48-56

Publication Date:

2003

Serial:

Transportation Research Record

Issue Number: 1860
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309085977

Features:

Figures (9) ; References (14) ; Tables (3)

Uncontrolled Terms:

Subject Areas:

Data and Information Technology; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2004 12:00AM

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