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Connecticut commenter cites Ireland—s pyrite crisis to urge stronger testing, criticizes grant-versus-remediation gap
Summary
Debbie McCoy, a Connecticut homeowner who described herself as the "Connecticut Concrete Queen," urged stronger testing and enforcement after comparing Ireland—s response to pyrite and peridotite damage with a separate grant scheme for defective concrete blocks, which she said left many homeowners with fewer protections and greater upfront costs.
Debbie McCoy, a Connecticut homeowner who called herself the "Connecticut Concrete Queen," used a public comment period to lay out technical and policy differences she says explain why homeowners affected by reactive iron sulfide minerals in Ireland have received unequal treatment. McCoy described European aggregate standards and testing methods she said were not consistently enforced, and she criticized the Irish Defective Concrete Block (DCB) grant scheme for providing fewer protections and more upfront costs than the earlier Pyrite Remediation Scheme.
McCoy said the harmonized European aggregate standards EN 13242 and EN 12620 (and related NSAI guidance documents SR 21 and SR 16, as cited in her remarks) call for sulfur and petrographic analysis of aggregates. She said most laboratories relied on an acid digestion total‑sulfur method that can underestimate total sulfur and does not identify sulfide species, a limitation she argued is important because framboidal pyrite and peridotite react more quickly than massive pyrite.
Why it matters: McCoy described a…
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