Rust-Oleum® Structural Concrete Repair is a fast setting, general purpose cement-based patching material for repairing concrete and masonry. Structural Concrete Repair is a proprietary blend of Portland cements, aggregate and additives that achieve an initial set in 10-15 minutes; final set in 20-25 minutes. It can be shaved down for a more uniform looking repair after the initial set. Excellent for vertical and overhead repairs. Primary applications include driveways, walkways, stairs, patios, pool decks, basement floors and garage floors.