Solidification theory for concrete creep. II: Verification and application

Zdenek P. Bazant, Santosh Prasannan

Research output: Contribution to journalArticlepeer-review

128 Scopus citations

Abstract

The theory that was formulated in the preceding paper is verified and calibrated by comparison with important test data from the literature pertaining to constant as well as variable stress at no (or negligible) simultaneous drying. Excellent agreement is achieved. The formulation describing both elastic and creep deformations contains only four free material parameters, which can be identified from test data by linear regression, thus simplifying the task of data fitting. For numerical structural analysis, the creep law is approximated in a rate-type form, which corresponds to describing the solidified matter by a Kelvin chain with nonaging elastic moduli and viscosities. This age-independence on the microlevel makes it possible to develop for the present model a simple version of the exponential algorithm.

Original languageEnglish (US)
Pages (from-to)1704-1725
Number of pages22
JournalJournal of Engineering Mechanics
Volume115
Issue number8
DOIs
StatePublished - Aug 1989

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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