Abstract: A material feed system and method for conveying a metered quantity of lightweight, friable mesh fibers without minimal damage to the mesh fibers to concrete and like materials mixing tank. The material feed system including a hopper with a spiral fiber guide near the discharge and flexible blades for clearing fibers from the upper and lower surfaces of the spiral fiber guide. A drive assembly is included for rotating the hopper at a rotation rate adequate to move and agitate the mesh fibers to facilitate flow of the mesh fibers first outward against the side walls of the bin and then rapidly downward through the bin being guided by the spiral fiber guide.