When dry, powdery hydraulic cement is mixed with water, it dries and sets. It is thought to have been made by the Roman Empire and is still used today to build and fix things. The ingredients in hydraulic cement work together to shorten the time it takes to set, so it can harden even when wet. Hydraulic cement is better than regular concrete because it doesn’t shrink when it dries and may grow a lot. In this article, we’ll talk about hydraulic cement, how it can be used, and why it’s a big deal in the building business.