USE OF LINEAR-ELASTIC LAYERED THEORY FOR THE DESIGN OF CRCP OVERLAYS

THE DESIGN OF OVERLAY PAVEMENTS FOR UPGRADING EXISTING PAVEMENTS, ESPECIALLY RIGID PAVEMENTS, HAS PRESENTED A FORMIDABLE TASK FOR ENGINEERS IN THE PAST DUE TO THE LACK OF A RATIONAL DESIGN PROCEDURE. THIS PAPER JUSTIFIES THE USE OF LINEAR-ELASTIC LAYERED THEORY FOR THE DESIGN OF CONTINUOUSLY REINFORCED CONCRETE PAVEMENTS (CRCP) OVERLAYS OF EXISTING PAVEMENTS. THE BACKGROUND RATIONALE FOR SELECTING LAYERED THEORY INSTEAD OF CONVENTIONAL CONCRETE PAVEMENT DESIGN PROCEDURES FROM PLATE THEORY IS PRESENTED. A COMPARISON IS MADE OF THE MECHANICAL STATE OF STRESS, STRAIN, AND DEFLECTION DERIVED FROM LAYERED THEORY AND THE WESTERGAARD INTERIOR EQUATION WITH FIELD MEASUREMENTS OF PAVEMENT DEFLECTION AND STRAIN. THIS COMPARISON INDICATES THAT LAYERED THEORY IS AN ACCEPTABLE MODEL FOR THE DESIGN OF CRCP OVERLAYS. TECHNIQUES SUCH AS INCREASING THE SUBGRADE STIFFNESS WITH DEPTH BENEATH A PAVEMENT STRUCTURE ARE PRESENTED FOR DEVELOPING A REASONABLE CORRELATION BETWEEN PREDICTED AND MEASURED DEFLECTION. LAYERED THEORY IS APPLIED TO THE DESIGN OF A CRCP OVERLAY OF AN EXISTING JOINTED CONCRETE AIRPORT PAVEMENT FOR A SERIES OF JUMBO JETS. ALSO DISCUSSED ARE THE EFFECTS ON DESIGN OF AN INTERMEDIATE ASPHALT CONCRETE STRESS-RELIEVING LAYER BETWEEN CONCRETE PAVEMENTS. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1969/291/291-001.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Rigid Pavement Design and presented at the 48th Annual Meeting. 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:
  • McCullough, B F
  • Boedecker, K J
• Publication Date: 1969

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 1-13
• Monograph Title: Design, evaluation, and performance of pavement systems
• Serial:
  • Highway Research Record
  • Issue Number: 291
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Airport runways; Continuously reinforced concrete pavements; Deflection; Field tests; Overlays (Pavements); Pavement design; Pavements; Rigid pavements; Strain (Mechanics); Stresses
• Uncontrolled Terms: Field measurements
• Old TRIS Terms: Existing pavements; Layered theories; Pavement deflection; Strains
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00205773
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Mar 9 1970 12:00AM