Cinder blocks are hollow rectangle-shaped structures usually made of concrete and coal cinders which find use in construction sites. Concrete blocks often, on the other hand, are flattened constructs made of steel, wood or cement.
What Are Cinder Blocks Made Of?
Cinder blocks are made of concrete and aggregate. The concrete is a mixture of Portland cement, water, and aggregate. The aggregate can be made of crushed stone, gravel, or sand.
The cinder block is then molded and cured.