Information on Building Concrete Blocks

Concrete block is a common building material around the world because it's made from inexpensive raw materials and its manufacture is a straightforward process.
Concrete block is a molded product made on machines that range from simple manual models that can make 300 blocks a day to powered automated models in commercial block yards that make thousands of blocks per day.
As the name implies, a concrete block is a building or construction block manufactured of concrete. Concrete is an amalgamation of Portland cement, aggregate and water. Often the aggregate used in the manufacture, concrete block is fly ash, or bottom ash. Both fly ash and bottom ash is the residue, or cinders, resulting from burning coal. Hence, some concrete blocks are known as cinder blocks.