RESPONSE AND PERFORMANCE OF ALTERNATE LAUNCH AND RECOVERY SURFACES THAT CONTAIN LAYERS OF STABILIZED MATERIAL (DISCUSSION)

The purpose of this study was to validate a mechanistic approach to the design and evaluation of alternate launch and recovery surfaces (ALRS) that contain layers of stabilized material. Validation was achieved by relating predicted first-pass structural response parameters to observed performance of field-test items. Eight two-layer rigid pavement test items and one three-layer rigid pavement test item were constructed of cement aggregate mixture layers. Items were subjected to simulated channelized F-4 main gear traffic using a load cart. Moduli of layers of stabilized material were back-calculated from falling weight deflectometer load-deflection data. First-pass predicted structural response was determined using stress-dependent finite element computer programs. The test items were thin by conventional design standards and had predicted first-pass stress ratios greater than one in the stabilized-material layers. Transfer functions were developed to relate predicted first-pass crack tensile stress to passes to functional failure. Major conclusions include (a) the mechanistic approach to the design and analysis of ALRS containing stabilized-material layers is valid; (b) critical pavement response affecting performance occurs at transverse shrinkage cracks; (c) performance is dominated by the thickness of the stabilized layer; and (d) ALRS containing stabilized materials require a wearing course on the surface of the stabilized layer to prevent tire abrasion and environmental deterioration.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1986/1095/1095-007.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=RESPONSE+AND+PERFORMANCE+OF+ALTERNATE+LAUNCH+AND+RECOVERY+SURFACES+THAT+CONTAIN+LAYERS+OF+STABILIZED+MATERIAL+(DISCUSSION)&author=R.+Costigan&author=M.+Thompson&publication_year=1986
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Flexible Pavements. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Costigan, Robert R
  • Thompson, Marshall R
• Discussers:
  • Ioannides, Anastasios M
• Publication Date: 1986

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 57-71
• Monograph Title: Design and performance of flexible pavements
• Serial:
  • Transportation Research Record
  • Issue Number: 1095
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Airport runways; Computer programs; Falling weight deflectometers; Field tests; Finite element method; Mathematical models; Pavement performance; Rigid pavements; Stabilized materials; Structural analysis; Structural mechanics; Transverse cracking; Wearing course (Pavements)
• Uncontrolled Terms: Structural response
• Old TRIS Terms: Cement aggregate mixtures
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00472241
• Record Type: Publication
• ISBN: 0309041155
• Files: TRIS, TRB
• Created Date: Aug 31 1988 12:00AM