20 LB Pail, Fast Set Repair Mortar, Formulated To Make Structural Repairs To Any Concrete, Masonry Or Stucco Surface, Ideal For Vertical & Overhead Repairs, 20-30 Minute Working Time, Allows Sculpting Of The Material During Placement, Use For Repairing Pre-stress Panels, Loading Docks, Tunnels, Retaining Walls, Bridge Columns, Curbs/Steps.