ANALYSIS OF ELASTOMERIC PAVEMENT SEALS

THE OBJECTIVE IS TO PRESENT A METHOD FOR PREDICTING THE LOAD DEFLECTION CHARACTERISTIC AND MAXIMUM STRESSES IN ELASTOMERIC SEALS. THE BASIC PROBLEM IS REDUCED TO THE STRUCTURAL ANALYSIS OF V-SHAPED WEB MEMBERS FOR LARGE FLEXURAL DEFORMATIONS. THE ANALYSIS IS PRESENTED IN TERMS OF DIMENSIONLESS QUANTITIES, WITH SAMPLE RESULTS IN TABULAR AND GRAPHICAL FORM. THE DIMENSIONLESS RESULTS ARE USED TO CONSTRUCT THE PREDICTED LOAD DEFLECTION CURVE FOR AN ACTUAL SAMPLE AND TO COMPARE IT WITH THE EXPERIMENTAL LOAD DEFLECTION CURVE FOR THE SAME SAMPLE. THE VALUES OF ELASTIC MODULI NECESSARY FOR CONSTRUCTING THE CURVE WERE OBTAINED BY LABORATORY EXPERIMENTS. RESULTS INDICATE THAT A SUCCESSFUL PREDICTION OF LOAD DEFLECTION BEHAVIOR AND MAXIMUM STRESSES CAN BE MADE THEORETICALLY. THE PREDICTION GIVES A GOOD ESTIMATE OF LOAD DEFLECTION BEHAVIOR UP TO 60 PERCENT DEFORMATION; BEYOND THIS VALUE THE SAMPLE CEASES TO RESPOND AS A STRUCTURE AND BECOMES MORE LIKE A MASS OF NEOPRENE. THE PREDICTED MAXIMUM STRESSES FOR A PARTICULAR EXAMPLE ARE GIVEN IN GRAPHICAL FORM. THE RESULTS SHOW THAT MAXIMUM SHEAR STRESS IS VERY LOW, SO THAT SHEAR DEFORMATIONS MAY BE NEGLECTED; THE TENSILE AND COMPRESSIVE STRESSES, HOWEVER, DO HAVE SIGNIFICANT VALUES. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1971/357/357-007.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309019702
• Supplemental Notes:
  • Sponsored by Committee on Solvents and Fillers for Joints and Cracks and presented at the 50th 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:
  • Vyas, Ravindra K
• Conference:
  • 50th Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1971-1-18 to 1971-1-22
• Publication Date: 1971

Media Info

• Media Type: Digital/other
• Features: Figures; Tables;
• Pagination: pp 72-79
• Monograph Title: Quality assurance, concrete, construction, bridge deck coating, and joint seals
• Serial:
  • Highway Research Record
  • Issue Number: 357
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Concrete pavements; Deflection; Elastomers; Joint sealers; Loads; Neoprene; Sealing compounds; Stresses
• Subject Areas: Construction; Highways;

Filing Info

• Accession Number: 00215461
• Record Type: Publication
• ISBN: 0309019702
• Files: TRIS, TRB
• Created Date: Mar 7 1972 12:00AM