ROCKITE is an expanding, fast-setting, pourable, anchoring & patching cement. Just mix with water and pour into place. ROCKITE sets up in 15 minutes. Stronger than concrete in one hour. Use ROCKITE to anchor bolts, rods, posts, signs, screws & machinery. Use ROCKITE to patch holes & cracks. Sets up in 15 minutes. Stronger than concrete in one hour. Easy to use, just mix with water. Additional discounts apply for this item when purchased as Bulk.