20 LB, Polymer Modified Structural Repair, Poly Modified & Shrinkage Compensated Rapid Setting, High Strength Repair Material Designed For Vertical Or Horizontal Structural Concrete Repairs, 20 To 45 Minute Set Time, Exceeds 2500 PSI, Use To Repair Driveways, Sidewalks, Bridge Decks, Floors, Parking Garages.