Influence of the alkali-silica reaction on the mechanical degradation of concrete

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The alkali-silica reaction (ASR) is an important problem that has yet to be completely understood. Owing to the complexity of this
phenomenon, a number of studies have been conducted to characterize its kinetics, its impact on the material, and its structural consequences.
This paper focuses on the deteriorating impact of ASR on concrete material, not only in terms of concrete swelling but also in consideration
of the induced mechanical degradation. The relationships between concrete expansion and various engineering properties, which are key
parameters in structural assessments, are investigated. First, new mechanical test results are presented. Second, available literature data on the
evolution of engineering properties of ASR-affected concrete under free-expansion conditions are collected and statistically analyzed. The
elastic modulus was found to be the best indicator for identifying the progression of ASR in concrete. Conversely, the evolution of compressive
strength was observed to potentially mask damage resulting from the ASR. The tensile behavior of the affected concrete was better
represented by the splitting tensile test.
Original languageEnglish
Pages (from-to)04016007-1-04016007-13
Number of pages13
JournalJournal of Materials in Civil Engineering
Issue number6
Publication statusPublished - 5 Jan 2016


  • Alkali-silica reaction (ASR)
  • Damage assessment
  • Degradation
  • Mechanical properties

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