Solidification theory for aging creep

Zdenek P Bazant*, Santosh Prasannan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The paper presents a new theory for the basic creep of concrete which takes aging into account in a manner which is better justified physically, better agrees with test results, and is more efficient computationally. The aging is treated as a consequence of volume growth of the load-bearing solidified matter (hydrated cement) whose properties are nonaging and are described by a Kelvin chain with age-independent moduli and viscosities. The thermodynamic restrictions on the aging creep law are satisfied, and the condition of nondivergence of creep curves is met. There are only four free material parameters, and they can be identified from the given test data by linear regression. Deviations from the principle of superposition are also correctly modeled by the theory. Good agreement with typical test data on creep and creep recovery is demonstrated.

Original languageEnglish (US)
Pages (from-to)923-932
Number of pages10
JournalCement and Concrete Research
Volume18
Issue number6
DOIs
StatePublished - Jan 1 1988

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

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