NewPlant Maintenance AMAT CentralPlant MaintenanceSpringdale, ARAPAC Central Inc., is a CRH company producing and providing crushed aggregate materials, sand, ready-mix concrete, asphalt, and performing as a regional heavy highway/infrastructure construction firm serving Arkansas, Oklahoma, and southern Missouri. As a key member of our maintenance team, you'll work alongside experienced professionals and management to ensure our plant and equipment are operating at peak performance.