RMC, based in Pleasanton, Calif., is a key aggregate supplier in the building materials industry, manufacturing five different types of cement. Aggregate is used in RMC’s ready-mix operation and marketed to other ready-mix producers and manufacturers of products such as concrete block, interlocking pavers, and lightweight roofing tiles. Making sure aggregates are properly mixed is vital to RMC’s operation. The supplier recently automated its aggregate mixing operations at two of its California plants.