CONCRETE CREEP AND SHRINKAGE PREDICTION FROM SHORT-TERM TESTS

This paper presents a method for predicting the ultimate creep and shrinkage from the results of short-term standard creep and shrinkage tests on 15-cm-diameter cylinders. Short-term tests are defined as those performed during a time period not exceeding 28 days after exposure. The paper uses both Bazant-Panula (BP-KX) and American Concrete Institute (ACI) 209 models to predict the ultimate concrete creep and shrinkage from the short-term test results. Predictions are compared with the results of long-term creep and shrinkage tests. Results show that the accuracy of prediction of the ultimate creep and shrinkage increases significantly when short-term tests results are used to adjust the models. Relative to both test-adjusted BP-KX and ACI model predictions, the coefficient of variation of long-term measured shrinkage strains is less than 20 percent, and the coefficient of variation of long-term measured instantaneous plus creep strains is typically less than 7 percent.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Ojdrovic, R P
  • Zarghamee, M S
• Publication Date: 1996-3

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 169-177
• Serial:
  • ACI Materials Journal
  • Volume: 93
  • Issue Number: 2
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Concrete; Creep properties; Deformation; Quality control; Shrinkage; Statistical analysis; Tests
• Subject Areas: Data and Information Technology; Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00724423
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 13 1996 12:00AM