HOW MANY MOLDS CAN I FILL WITH AN 80 LB. BAG OF PREMIX CONCRETE?
The easiest way to figure an approximate yield per bag is to multiply the approximate width of the mold, by the length of the mold, by the depth you will be pouring the mold. That will give you the cubic inches of concrete needed to fill the mold. An 80 lb. bag of premix concrete yields 1,036.8 cubic inches of concrete, or 0.6 cubic feet. How much water, and the brand of concrete you use may effect the yield results, but these figures should give you a yield that is pretty close. (See next question) HOW MANY 6″x6″x1/2″ TILES CAN I MAKE WITH AN 80 LB. BAG OF PREMIX CONCRETE? To find the yield from an 80 lb. bag of premix concrete for this, or any other size mold, use the following formula: Length X width X depth of mold. In this example of a 6″x6″x1/2″ tile mold, (6 x 6 = 36 X .5) = 18 cubic inches. Divide the cubic inches into 1,036.8 (Cubic inch yield in an 80 lb. bag of premix). That will yield 57.6 tiles that are 6″x6″x1/2″ from each bag of premix. To take that further… you can di
