Modelling of creep of concrete mixed with expansive additives

Hyeonggil Choi, Myungkwan Lim, Heesup Choi, Takafumi Noguchi, Ryoma Kitagaki

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The creep phenomenon of hardened cement mixed with expansive additives (EAs) was modelled by considering the creep performance of hydration products of cements and EAs under the assumption that the characteristics of hydration products of cements and EAs are fixed. A new composite model that is appropriate for particle conditions is proposed by considering the balance of the hydration products of cement and EA and the stress redistribution phenomenon of hydration products newly generated by the progress of hydration. Verification of the creep model indicated that the accumulated creep strains calculated by the model and those obtained through experiment were similar, thereby confirming that the model shows excellent estimation and evaluation performance. Furthermore, the stress could be sufficiently estimated by analysing the creep phenomenon corresponding to the progress of hydration under the restrained condition.

Original languageEnglish
Pages (from-to)335-348
Number of pages14
JournalMagazine of Concrete Research
Volume67
Issue number7
DOIs
Publication statusPublished - 2015 Apr 1

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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