### CONCRETE MIXING RATIOS - everything-about-concrete.com

By measuring the mixing ratios you will have a consistent concrete mix throughout your entire project. Mixing ratio to make 1 yard of concrete. To produce a 3000 psi cubic yard of concrete (27 cubic feet) the concrete mixture ratio is: 1. 517 pounds of cement or (234kg) 2. 1560 pounds of sand or (707kg) 3. 1600 pounds of stone or (725kg)