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Title:

Impulse Response Dynamic Stiffness Decay in Aging General Aviation Airfield Pavements

Accession Number:

01373841

Record Type:

Component

Availability:

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Order URL: http://www.trb.org/Main/Blurbs/168503.aspx

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Order URL: http://worldcat.org/isbn/9780309263030

Abstract:

Managing pavements requires a reliable pavement performance indicator. The current study examines the feasibility of using the impulse response (IR) method to provide a reliable, mechanistic measure of current and future pavement performance. In an extension of the pavement family approach, IR-inferred dynamic stiffness (k sub d) decay models were generated for pavements with asphalt concrete (AC) and portland cement concrete (PCC) surfaces. AC pavement family subdivisions devised with the total thickness of structurally capable layers were found to yield the most significant correlations. Grouping data from all IR tests on PCC pavement sections into one family yielded a coefficient of determination of large significance with low scatter in the data. A statistically significant correlation could not be established for AC pavement between IR-estimated k sub d and the low-strain modulus (E sub SEIS) inferred by the method of spectral analysis of surface waves. In PCC pavements, a weak correlation was observed between k sub d and E sub SEIS. Though the sample used for comparison with structurally distressed sections was small, results suggested that in AC pavements, visually inferred traffic-related distresses did not correlate with structural failure. For PCC pavements, visual identification of structural distresses was more accurate than for AC pavements.

Monograph Accession #:

01471223

Report/Paper Numbers:

12-4458

Language:

English

Authors:

Khanna, Vivek
Mooney, Michael A
Miller, Gerald A

Pagination:

pp 119–129

Publication Date:

2012

Serial:

Transportation Research Record: Journal of the Transportation Research Board

Issue Number: 2304
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

9780309263030

Media Type:

Print

Features:

Figures; References; Tables

Candidate Terms:

Uncontrolled Terms:

Subject Areas:

Aviation; Maintenance and Preservation; Pavements; I23: Properties of Road Surfaces; I60: Maintenance

Files:

TRIS, TRB, ATRI

Created Date:

Feb 8 2012 5:24PM

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