SEGMENTS By focusing on specific market segments, our businesses work together to bring efficiencies across the board to our customers. Building Materials Construction Real Estate Aviation SEGMENTS We’ve diversified into other industries, too, such as automotive dealerships and outdoor advertising. BUILDING MATERIALS Our business units that provide sand & gravel, crushed stone, asphalt, concrete block, ready-mix concrete, hardscapes, metal roofing and siding systems, and colored mortars. CONSTRUCTION General contracting, sitework, industrial services, and welding and fabrication businesses. REAL ESTATE Businesses targeting both the retail and commercial sectors. AVIATION Airport services.