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/

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 1-10
  • Monograph Title: Concrete properties and performances
  • Serial:

Subject/Index Terms

Filing Info

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