A scientifically formulated blend specially designed for structural repairs to vertical and overhead concrete and masonry surfaces. Perfect where rapid-setting repairs and immediate use of the repair surface is required. Sets in 20 minutes, withstands foot traffic in four hours. Moldable, ideal for repairing broken edges of concrete curbs and steps without the use of forms. Durable, strong and weather resistant. Use Ash Grove Bonding & Fortifier Admixture for maximum strength. Complies with DOT requirements.