Concrete

It is the main building material for the world. It can be poured into a mold to make walls, floors, and roads. It can be used to make furniture and sculptural pieces. It can be mixed with other materials to create a variety of products. The word concrete can be traced back to the Roman era. The Romans were the first to use a mixture of water and lime, and later, Portland cement, to create a hard, durable, and permanent building material.