CREEP POISSON'S RATIO OF CONCRETE UNDER MULTIAXIAL COMPRESSION

CREEP DATA ARE PRESENTED FOR CONCRETE UNDER DIFFERENT STATES OF STRESS, WITH EACH STRESS COMPONENT INDEPENDENTLY CONTROLLED. CREEP IN ALL THREE PRINCIPAL DIRECTIONS IS REPORTED. UNDER MULTIAXIAL STRESS, CREEP IS SOMEWHAT SMALLER THAN UNDER UNIAXIAL STRESS. EFFECTIVE CREEP POISSON'S RATIO UNDER MULTIAXIAL STRESS IS LOWER (0.09 TO 0.17) THAN UNIAXIAL CREEP POISSON'S RATIO (0.17 TO 0.20) AND DEPENDS ON THE RELATIVE MAGNITUDE OF PRINCIPAL STRESSES. EMPIRICAL EXPRESSIONS FOR CREEP POISSON'S RATIO ARE DERIVED. DATA ON CREEP RECOVERY SHOW THE DEPENDENCE OF CREEP RECOVERY ON PRECEDING CREEP AS WELL AS ON STRESS REMOVED. UNDER MULTIAXIAL COMPRESSION THE RECOVERABLE PROPORTION OF CREEP IS LARGER THAN UNDER UNIAXIAL STRESS. /AUTHOR/

• Supplemental Notes:
  • Vol 66, No 12, PP 1008-1020, 10 FIG, 4 TAB, 11 REF, 1 APP
• Authors:
  • Gopalakrishnan, K S
  • Neville, A M
  • Ghali, A
• Publication Date: 1969-12

Media Info

• Serial:
  • Am Concrete Inst Journal & Proceedings

Subject/Index Terms

• TRT Terms: Axial loads; Biaxial stress; Compression; Concrete; Creep; Creep properties; Mechanical relaxation; Poisson ratio; Stresses
• Uncontrolled Terms: Axial stress; Triaxial stress
• Old TRIS Terms: Concrete creep; Poissons ratio
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213671
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 30 1970 12:00AM