Finland's emerging alkali-aggregate reaction problem?

Hannu Pyy, Erika Holt

Research output: Contribution to journalArticleScientificpeer-review


Finland is known as a country having very durable granitic aggregate that is used in a wide range of construction applications. Yet recent field results from existing concrete structures have shown evidence of alkali aggregate reactions (AAR). In Finland there is a need to have a better understanding of what causes AAR and from what aggregate sources, how to identify it or separate it from other deterioration mechanisms and guidelines about how to avoid AAR in future construction. This paper shares information about a few of the Finnish structures where AAR has been detected.
Original languageEnglish
Pages (from-to)311-314
JournalNordic Concrete Research
Issue number1
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed
EventXXI Nordic Concrete Research Symposium - Hotel Rantasipi Aulanko, Hämeenlinna, Finland
Duration: 30 May 20111 Jun 2011


  • deterioration
  • durability
  • alkalinity
  • aggregate
  • alkali aggregate reaction


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