THE EFFECT OF CHANGE IN MOISTURE-CONTENT ON THE CREEP OF CONCRETE UNDER A SUSTAINED LOAD

THE AMOUNT AND RATE OF CREEP IN CONCRETE UNDER LOAD HAS BEEN FOUND TO DEPEND UPON THE RATE OF DRYING. THIS PAPER SHOWS BY MATHEMATICAL ANALYSIS THAT THIS IS A NATURAL CONSEQUENCE OF NON-UNIFORM SHRINKAGE AND A NON-LINEAR STRESS-CREEP RELATIONSHIP. IT FURTHER SHOWS THAT SHRINKAGE CANNOT ACCOUNT FOR ADDITIONAL CREEP UNLESS INELASTIC STRAIN NOT PROPORTIONAL TO STRESS IS PRODUCED. RESULTS FROM EXPERIMENTS DESIGNED TO TEST THE APPLICABILITY OF THE THEORY TO CONCRETE ARE REPORTED. /PCA/

• Authors:
  • Pickett, G
• Publication Date: 0

Media Info

• Serial:
  • Portland Cement Assoc R & D Lab Bull
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Concrete; Creep; Deformation curve; Drying rate; Inelastic stress; Loads; Mathematical analysis; Moisture content; Shrinkage
• Uncontrolled Terms: Change; Inelastic action
• Old TRIS Terms: Concrete creep
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213473
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 20
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM