Question

a siliceous and akuminous material which, in itself, possesses little or no cementitious value but which will, in finely divided form and in the presence of water, react chemically with calcium hydroxide to form compounds possessing cementitious properties. The romans used this extensively in the province of Naples and it got its name from one of the city of Naples A. White Cement B. Portland Cement C. Pozzolan Cement D. Tithonian Cement

Answer 1

Pozzolan Cement, developed by the Romans in the 2nd century BCE, combines water, lime, and pozzolana for durable and resilient concrete. So, the correct option is C. Pozzolan Cement

Step-by-step explanation:

In the 2nd century BCE, the Romans pioneered the development of Pozzolan Cement, a groundbreaking material in the history of construction.

This concrete variant involved a meticulous blend of water, lime, and pozzolana—an aluminous material sourced from volcanic Italian sand.

The transformative chemical reaction between finely divided pozzolana and calcium hydroxide yielded compounds endowed with cementitious properties.

This innovation significantly enhanced the durability and strength of Roman structures, proving instrumental in iconic architectural achievements like the Pantheon and aqueducts.

The enduring legacy of Pozzolan Cement lies in its ability to catalyze chemical reactions, thereby contributing to the longevity of ancient Roman infrastructure and influencing modern construction practices.

So, the correct option is C. Pozzolan Cement