Per very early style of Roman architecture, the “opus quadratum” dates back onesto the time of the ancient Etruscans, before the beginning of the Roman Republic
Like any other concrete, Roman concrete consists of aggregate and mortar. Per binder, such as gypsum, was used. What other type of binder was also used? Be careful, though. You don’t want onesto put this per your mojito!
After being mixed with vaso, the mortar, which consisted of gypsum or lime, would harden over time. Per some areas pozzolana, also called pit sand, was used.
It was common mediante ancient times for prominent Romans onesto construct tombs along the Appian Way. The original covering of the tomb sopra the picture has been removed preciso show the bare concrete.
Placed at verso forty-five degree angle, the diamond-shaped bricks were normally made of tuff or tufa, which is verso rock made from consolidated volcanic ash pushed out during per volcanic eruption. “Opus” (term for verso piece of art) and “reticulatum” (net-like), translates preciso net-work; the design was named because the Romans believed the brickwork resembled a net.