The Concrete Materials Calculators contain the quantities of various concrete mix (cement/all-in-ballast/sharp sand/gravel etc.) essential for providing a definite volume of finished concrete. http://www.quantity-takeoff.com/usefulness-and-usage-of-concrete-materials-calculators.htm
QUIKRETE® 5000 Concrete Mix (No. 1007) is a commercial grade blend of stone or gravel, sand and cement specially designed for higher early strength. Ideal for cold weather application. Achieves 5000 psi after 28 days.