The hollow core of each concrete block keeps it from weighing too much to work with and provides a cavity that can be filled with concrete for added strength.
How much concrete to core fill a block wall.
To use the block wall calculator simply enter the height and length of the wall click on whether you are filling an 8 inch or 12 inch wall then click on the calculate button.
Whenever you are working with cinder block you can strengthen them significantly by filling them with concrete.
Cinder blocks are less expensive to work with than poured concrete in home construction projects but they are not as strong you can make up the difference by spending a little more to reinforce the blocks a project that is still less expensive than using just poured concrete.
Note that this is an estimate.
16 cubic feet of concrete at 150 s is about 2400 s per block.
Concrete block also known as a concrete masonry unit and sometimes called a cinder block typically has one or two holes or voids to reduce the weight of the block.
Given that your measurements are 2 x2 x4 the block contains about 16 cubic feet.
Contractors elect to fill the hollow openings or voids in concrete blocks sometimes referred to as grouting after they are stacked or laid to achieve a stronger wall one with properties nearly identical to a poured concrete wall.
When reinforced with steel and filled with concrete a rock solid wall can be built to withstand the elements.
The calculator will estimate the number of cubic yards that will be required.