Compressive Strength (ASTM C 109 Modified):
1 Day - 2,000 PSI (13.7 MPa)
7 Days - 4,000 PSI (27.5 MPa)
28 Days - 6,000 PSI (41.3 MPa)
Most Popular Questions
Q - How much water do I add for one 80 lbs bag of Quikrete Countertop bag mix?
A - For each 80 lb (36.3 Kg) bag of Countertop Mix to be mixed, add approximately 1 gallon (3.8 L) of fresh water to the mixer. Turn on the mixer and begin adding the bags of concrete. If the material becomes too difficult to mix, add water sparingly until a flowable mix is obtained. Machine-mix for a minimum of three minutes after the final water addition. The recommended slump is 5" - 7" (127-178 mm). Do not exceed recommended slump range. Note: Final water content should be 8-9 pints (3.8 – 4.3 L) per 80 lb (36.3 Kg) bag.