#civilengineeer

Portland cement was first manufactured by Joseph Aspin, bricklayer and builder. He received a patent for Portland cement on October 21, 1824. 

Since then, there has been continuous effort in cement and he has discovered that the conversion of chemical compounds into cement reveal different characteristics and properties. For highly varied and high-demand cement conditions, the types of cement that can only be manufactured by varying the relative proportions of oxide compounds are not sufficient.

Tests have been conducted to add new materials to the cement known as additives, replacing the basic raw materials during grinding or cement preparation. The use of additives, the alteration of the chemical composition and the application of different raw materials resulted in the availability of many types of cement.