U.S. Concrete, Inc. announced several acquisitions on October 2, 2017. Its wholly owned subsidiary, NorCal Materials, Inc., acquired two independently owned and operated ready-mixed concrete operations, Harbor Ready-Mix and A-1 Materials, Inc. The acquisitions include two ready-mixed concrete batch plants and 23 mixer trucks, as well as the assets of L.C. Frey Co., Inc., a landscape materials business related to A-1’s operations.