Birmingham-based Vulcan Materials has announced a deal to acquire Superior Ready Mix Concrete, a California-based materials company, for an undisclosed amount.

According to an announcement, the deal will add six aggregates operations with more than 50 years of reserves to Vulcan’s California franchise, as well as two asphalt plants and 13 ready-mixed concrete locations.

It also gives Vulcan more access in California, which is the second largest aggregates market in the U.S.

Vulcan is the largest supplier of construction aggregates in the U.S., which is primarily crushed stone, sand and gravel. It is also a major producer of aggregates-based construction materials, including asphalt and ready-mixed concrete.

The transaction is expected to close within the next week, subject to customary closing conditions.

Vulcan CEO Tom Hill said Superior has a “long and successful track record of providing high quality products and services to its customers.”

“This acquisition is consistent with our aggregates-led growth strategy of continuing to expand our reach to better serve attractive regions in the United States,” Hill said in a statement.