Britpave
Organization for the promotion and better use of concrete for paving.
Virginia Ready Mixed Concrete Association
Source for information on ready-mixed concrete for design professionals, homeowners and managers of businesses in the industry.
Western Region Ash Group
Information about fly ash, coal combustion products and coal combustion byproducts that are used in concrete products.
Aggregate Industries
Supplies construction materials including aggregates, asphalt, ready-mixed concrete and precast concrete products. Includes links to US and UK operations.