An 80 lb bag of concrete typically yields about 0.6 cubic feet when mixed. Since there are 27 cubic feet in a cubic yard, half a cubic yard is 13.5 cubic feet. To find how many 80 lb bags are needed, divide 13.5 by 0.6, which equals approximately 22.5 bags. Therefore, you would need about 23 bags of 80 lb concrete to fill half a cubic yard.
0.6 cubic feet in one 80 lb bag. with there being 27 cubic feet in one cubic yard: 0.02 cubic yards per bag, in other words, it would take 45 - 80lb bags to yeild 1 cubic yard of concrete
1 cubic yard = 27 cubic feet = 54 half-cubic-foot bags
0.5 is one-half, it takes 2 of these to make one cubic foot.
It depends on the size of the bags
11 bags
The number of bags in a cubic yard depends on the size of the bags being used. Typically, a cubic yard can fit around 13.5 regular-sized garbage bags with a capacity of 33-35 gallons. However, this may vary with larger or smaller bags.
You need10.8/(the number of cubic feet of sand in each bag) bags.
about 60 60lb bags
A cubic yard is 3x3x3= 27 cubic feet so you would need 27/.5 = 54 bags
Twenty-one .75 cubic foot bags equal 16 cubic feet.
26 bags
7 cement bags per 1 cubic meter of concrete......