Headquartered in Dublin , CRH was the biggest producer of asphalt in the US and the third largest producer of ready - mixed concrete .
As of November 2016 , half the asphalt , aggregates and assorted material it sold went to the United States .
Headquartered in Dublin , CRH was the biggest producer of asphalt in the United States and the third largest producer of ready - mixed concrete .
As of November 2016 , half the asphalt , aggregates and assorted material it sold went to the United States .