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Title:

Comparison of Design Thicknesses for Flexible Airfield Pavement Based on Agency Limiting Subgrade Strain Criteria

Accession Number:

01367991

Record Type:

Component

Availability:

Transportation Research Board Business Office

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Washington, DC 20001 United States
Order URL: http://www.trb.org/Main/Blurbs/168504.aspx

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Order URL: http://worldcat.org/isbn/9780309263139

Abstract:

A newly developed mechanistically based design procedure for airfield hot-mix asphalt pavement is studied. The pavement performance is calculated in terms of critical strains on the basis of multilayer theory. Rutting failure criteria from the Asphalt Institute, Shell Oil, and the revised U.S. Army Engineer Waterways Experiment Station (USACE-WES) are used to calculate the thickness requirements necessary for a range of design input variables. The program has been implemented in ZAPRAM, an event-driven, user-friendly educational computer program that runs in the Excel 2007 environment, coupled with Visual Basic programming. Results of the design comparison indicate a significant difference between the three common airfield pavement design procedures used. Differences between the Asphalt Institute procedure and the revised USACE-WES procedure are relatively moderate for all design situations. The greatest deviation is found between the Shell Oil approach and the other two criteria. The design difference depends heavily on several major factors. An analysis of heavy aircraft (B-747) operating on a low-support subgrade foundation may yield pavement design differences of 2 to 3 ft of granular subbase material. A major effort to enhance the state of the art for airfield pavement design models is recommended.

Monograph Accession #:

01470561

Report/Paper Numbers:

12-2983

Language:

English

Authors:

Zapata, Claudia
Cary, Carlos E
Souliman, Mena
Rosenbalm, Daniel
Salim, Ramadan

Pagination:

pp 141–149

Publication Date:

2012

Serial:

Transportation Research Record: Journal of the Transportation Research Board

Issue Number: 2305
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

9780309263139

Media Type:

Print

Features:

Figures; References; Tables

Uncontrolled Terms:

Subject Areas:

Aviation; Design; Pavements; I22: Design of Pavements, Railways and Guideways

Files:

TRIS, TRB, ATRI

Created Date:

Feb 8 2012 5:13PM

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