Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron and other ingredients. Common materials used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag, silica sand, and iron ore.
How Do They Make Cement?
Cement is one of the most important building materials used in construction today. The process of how cement is made is quite complex and involves a variety of steps that must be taken in order to produce the final product.
While there are several different types of cement, the most common type used in general construction is Portland cement.
To make cement, a combination of materials such as limestone, clay, sand, and iron ore are mixed together and then heated in a kiln to a temperature of about 2,700 degrees Fahrenheit.
The heated mixture is then ground into a fine powder and mixed with a small amount of gypsum. This powder is then sent through a grinder to produce the final product, which is known as clinker.
Clinker is made up of small, hard pieces of cement, which are then mixed with water and other additives to form the cement.
Once the clinker has been mixed with water, it is then sent through a process known as hydration. During this process, the water and the clinker react with each other and form a cement paste.
This paste is then ground and sent through a series of rollers that shape the paste into the desired shape and size. Once the cement has been formed, it