How make building cement?

Answer 1

To make building cement, limestone and clay or shale are typically crushed and mixed in a specific ratio. This mixture is then heated in a kiln at high temperatures (around 1,450°C or 2,640°F) to form clinker, which is subsequently cooled and ground into a fine powder. Additional materials, such as gypsum, may be added to control the setting time. The resulting product is Portland cement, the most commonly used type in construction.