Plant Attendant. Roanoke Cement Company. Roanoke, VA. Roanoke Cement Company LLC is recognized in the community and within the industry for its clean manufacturing practices, conservation of energy and resources and its outstanding safety record. The only active cement plant in the Commonwealth of Virginia, Roanoke Cement is an Energy StarĀ® Partner and the recipient of a number of environmental, industry and safety awards. We have an excellent op...