Covers 0.5 cubic feet, Can be used for concrete repair, grouting, anchoring, casting and underlayment, Bonds to concrete, brick, stone and many other surfaces, Blend of high performance, Rapid Set cement with fine graded sand, Just add water, Sets in as little time as 15 minutes and hardens to structural strength in 1 hour, Resists cracking and shrinkage, High strength, 9000 psi, Meets ASTM C1107 requirements