Vulcan Materials Company engages in the production and sale of construction aggregates, as well as asphalt mix, ready-mixed concrete, and cement primarily in the United States. The company operates in four segments: Aggregates, Concrete, Asphalt Mix, and Cement. The Aggregates segment offers crushed stone, sand and gravel, sand, and other aggregates, as well as related products and services. Its aggregates are used in public- and private-sector construction projects, including highways, airports, water and sewer systems, industrial manufacturing facilities, and residential and nonresidential buildings, as well as railroad track ballast. The Concrete segment produces and sells ready-mixed concrete in California, Florida, Georgia, Maryland, Texas, Virginia, and the District of Columbia; and other concrete products, such as blocks, as well as resells purchased building materials for use with ready-mixed concrete and concrete blocks. The Asphalt Mix segment offers asphalt mix in Arizona, California, and Texas. The Cement segment provides Portland and masonry cement in bulk and bags to the concrete products industry. It also imports and exports cement, clinker, and slag, as well as resells, grinds, blends, bags, or reprocess them. In addition, this segment mines, produces, and sells calcium products for the animal feed, paint, plastics, water treatment, and joint compound industries. Vulcan Materials Company, formerly known as Virginia Holdco, Inc., was founded in 1909 and is headquartered in Birmingham, Alabama.