Meath County Council has asked the Housing Agency to examine potential defective concrete block cases in the county as the scale of the mica crisis spreads across the island. It is the latest local authority to officially ask the agency to examine homes with a view to entering the Enhanced Defective Concrete Blocks Grant Scheme. The scheme helps affected homeowners with costs to demolish and rebuild houses damaged by the use of defective concrete blocks with excessive amounts of mica or pyrite.  Mica and pyrite are found in rocks mined from quarries for use in building blocks. The minerals can…