ANALYSIS OF THE RESIDUAL STRESSES IN CONCRETE DUE TO TEMPERATURE VARIATION, SHRINKAGE, AND CREEP

BECAUSE THE PHYSICAL PROPERTIES (THERMAL EXPANSION AND SHRINKAGE) AND MECHANICAL PROPERTIES (STRENGTHS AND MODULI OF ELASTICITY) OF THE COMPONENTS OF CONCRETE ARE DIFFERENT, CONCRETE IS CONSIDERED A MULTIPHASE MATERIAL. FOR THE SAKE OF SIMPLICITY, IT IS ASSUMED IN THIS PAPER THAT THERE ARE TWO PHASES: THE CEMENT STONE (I.E., THE HARDENED CEMENT PASTE) AS THE MATRIX AND THE AGGREGATE PARTICLES AS THE DISCRETE PHASE. BECAUSE THE PHASES ARE PREVENTED FROM FREE DEFORMATION BY THEIR STRONG BOND, HAMPERED STRAINS IMPOSE BALANCED STRESSES ON CEMENT STONE AND AGGREGATE; THUS, THE CONCRETE GETS IN A RESIDUAL STRESS CYLINDER, AND SPHERE) SIMULATING A CEMENT DISK OF OUTER SHELL AND AN AGGREGATE DISK OF INNER CORE WILL BE APPLIED TO ILLUSTRATE THE EVALUATION OF RESIDUAL STRESSES IN CONCRETE DUE TO TEMPERATURE VARIATION, SHRINKAGE, AND CREEP. DIAGRAMS ARE ALSO PRESENTED FOR EASIER APPLICABILITY OF THE METHOD. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1973/423/423-001.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309020956
• Supplemental Notes:
  • Sponsored by Committee on Mechanical Properties of Concrete. 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:
  • Palotas, L L
• Conference:
  • 51st Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1972-1-17 to 1972-1-21
• Publication Date: 1973

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: pp 1-10
• Monograph Title: Concrete properties and performances
• Serial:
  • Highway Research Record
  • Issue Number: 423
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Concrete; Creep; Mathematical models; Modulus of elasticity; Residual stress; Shrinkage; Strength of materials; Temperature; Thermal expansion
• Uncontrolled Terms: Models
• Old TRIS Terms: Concrete creep
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00214233
• Record Type: Publication
• ISBN: 0309020956
• Files: TRIS, TRB
• Created Date: Aug 20 1973 12:00AM