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Revised defective blocks standard finally acknowledges pyrrhotite as primary cause of crisis

Press/Media: Research

Period2 Jun 2026

Media coverage

1

Media coverage

  • TitleRevised defective blocks standard finally acknowledges pyrrhotite as primary cause of crisis
    Degree of recognitionRegional
    Media name/outletDonegal Daily
    Media typeWeb
    Country/TerritoryIreland
    Date2/06/26
    Descriptionhe new IS 465 protocol, six years in the making, introduces major changes to testing and remediation while placing greater emphasis on the risk of future deterioration

    After almost six years in gestation, the National Standards Authority of Ireland (NSAI) has finally published its revised IS 465, the testing protocol that underpins the State's defective blocks grant scheme.

    The new standard, which for the first time acknowledges pyrrhotite as a primary cause of degradation in defective blocks, came into effect at the end of May.
    URLhttps://www.donegallive.ie/news/revised-defective-blocks-standard-finally-acknowledges-pyrrhotite-as-primary-cause-of-crisis-8654825
    PersonsPaul Dunlop

Keywords

  • I.S.465
  • pyrrhotite
  • internal sulfate attack