High Quality Content by WIKIPEDIA articles! Roman concrete was a material used in construction during the Roman Empire. Roman concrete was based on a hydraulic-setting cement with many material qualities similar to modern Portland cement. By the middle of the first century AD, the material was used frequently as brick-faced concrete, although variations in aggregate allowed different arrangements of materials. Further innovative developments in the material, coined the Roman Concrete Revolution, contributed to structurally complicated forms, such as the Pantheon dome. Roman concrete, like any concrete, consisted of a mortar and an aggregate. The mortar—a hydraulic cement—was a mixture of lime and a special kind of volcanic deposit, called Pozzolana, or "pit sand." The aggregate varied and included pieces of rock, ceramic tile, and brick rubble from the remains of previously demolished buildings. The pozzolanic mortar used had a high content of alumina and silica.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.