Chemo-mechanical model for the expansion of concrete due to alkali silica reaction

Lianfang Sun, Xingji Zhu, Xiaoying Zhuang, Goangseup Zi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A chemo-damage model is proposed to predict the expansion caused by the alkali silica reaction (ASR). The model covers the formation of the pre-expansion gel driven by alkali and the swelling of the gel driven by water. The swelling capacity of the ASR gel is quantified by the sodium to calcium ratio in the pore solution. The bound alkali in the gel recycled by calcium is also considered in this model. Both external alkali supply and internal alkali released from aggregates are included. Several sets of experimental data are compared with the simulation results for the verification of the model.

Original languageEnglish
Article number3807
JournalApplied Sciences (Switzerland)
Volume10
Issue number11
DOIs
Publication statusPublished - 2020 Jun 1

Keywords

  • Alkali silica reaction
  • Concrete
  • Durability
  • Numerical modeling

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

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