The History of Concrete and Cement - ThoughtCo
2019-03-06· Fine aggregate (fine refers to the size of the aggregate particulates) is used in making concrete slabs and smooth surfaces. Coarse aggregate is used for massive structures or sections of cement. Cement has been around a lot longer than the building material we recognize as concrete. Cement in Antiquity . Cement is thought to be older than humanity itself, having formed naturally 12 .