80 lbs Countertop Concrete Mix FeaturesThis product features a super-plasticizer additive for a flowable mix at a low water-to-cement ratioUsed to create a pre-cast or cast-in-place concrete countertopReduce shrinkage formulationStrip forms in 18 hoursExceeds 5000 PSI 28 daysSpecificationsCountry of Origin: United StatesWeight: 80 lbs- SKU: ACHR134096