Description Quikrete 80 lb. Concrete Mix can be used for building or repairing foundation walls, sidewalks, curbs, steps and ramps and for setting posts. This mix designed for pouring concrete 2 in. thick or more. Quikrete 80 lb. Concrete Mix consists of a uniformly blended, properly proportioned mixture of gravel, sand and Portland cement.PRODUCT DETAILS:Use for making repairs to foundation walls, walkways or steps and setting mailboxes and posts For pouring concrete 2 in. thick or more Just add water 60 minute working time High-strength 4000 psi concrete Meets ASTM C 387 compressive strength requirements