ROMAN SAND MIX is a quality blend of graded sand and portland cement. It is used as an overlayment for worn, spalled, or damaged concrete surfaces in applications less than 2 inches thick. Roman Sand Mix is also an excellent bedding mix for laying slate, flagstone, or brick walkways. Roman Sand Mix is designed to exceed the specifications of ASTM C 387
7 day 3,000 psi (21 Mpa)
28 day 5,000 psi (34 Mpa)
One 80 lb. (36.4 kg) bag will require up to 4 quarts (3.7 L) of water. Thoroughly mix the contents of the bag with 3 quarts (2.8 L) of water, adding the remaining water a little at a time if the
mix is too stiff. Adding too much water will weaken the mix and may cause cracking in the surface.
Use a screed or straight edge to level the surface. Allow the surface water to disappear before finishing. Trowel to a smooth finish, but do not overwork the surface. Over-troweling or finishing
the surface too soon can lead to scaling, cracking, or dusting of the surface.
Sand Mix cures under proper moisture and temperature conditions. It’s important to keep the surface damp for several days after placement. Methods include misting, applying a curing agent, or placing plastic over the surface. Protect the sand mix from freezing for at least 24 hours after placement.
One 80 lb. bag will yield approximately .60 cubic feet (.016 cu. m). To estimate the number of 80 lb. bags needed for a job, multiply the length x width x depth (all in feet), then divide by .60
- Repairing wide cracks in concrete and masonry
- Driveways, slabs, patios, walkways
- Concrete overlays
- Large masonry crack repairs
- Filling masonry block cores