Continuous retardation spectrum for solidification theory of concrete creep

Zdeněkp Bažant, Yunping Xi

Research output: Contribution to journalArticlepeer-review

86 Scopus citations

Abstract

The basic creep of concrete is the time-dependent strain caused by a sustained stress in absence of moisture movements. It is the strain observed on sealed specimens. Similar to other properties of concrete, it is dependent on the age of concrete, as a consequence of long-time chemical reactions associated with the hydration of cement. This paper formulates the solidification theory with a continuous retardation spectrum, and shows how this spectrum can be readily and unambiguously identified from arbitrary measured creep curves and how it then can be easily converted to a discrete spectrum for numerical purposes. The identification of the continuous spectrum is based on Tschoegl’s work on viscoelasticity of polymers. Attention is limited to basic creep.

Original languageEnglish (US)
Pages (from-to)281-288
Number of pages8
JournalJournal of Engineering Mechanics
Volume121
Issue number2
DOIs
StatePublished - Feb 1995

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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