In the most general sense of the term, concrete is a substance that solidifies to act like glue. The Romans were the first to use "modern cement" for crushed stone masonry with quicklime as a binder. They named this substance “caementicium opus”, which was later called cement, cementim, cäment and cement. Cement is mainly used in construction. It is a gray powdery substance of burnt lime and clay, mixed with water and sand to make mortar (a paste used to bind building blocks together and fill the spaces between them) or with water, sand and gravel to make concrete (a strong, durable paste). building material).The cement industry is of paramount importance today in the developing and highly dynamic world. To initiate, sustain and sustain growth, it is imperative that a country's cement industry operates efficiently, effectively and, most importantly, productively. For a developing country like Pakistan, the quantity of cement produced per person indicates the stage of development. Analysts and experts believe that the demand for cement is directly proportional to the level of economic growth, population and urbanization. Additionally, demand is directly linked to the level of construction activities and corresponding activities taking place across the country. The history of Pakistan's cement industry dates back to 1921, when the first factory in Wah was established. When Pakistan became independent, it inherited four operating cement industries with an installed capacity of 470,000 tonnes per annum. They were between Karachi, Rohri, Dandot and Wah. The number of cement units increased to six during the decade 1948-1958. Pakistani cement industry has changed since then and moved to middle of paper......aulic and not hydraulic. Different types of cement used can produce different amounts of gypsum, clinker and other additives, but only certain types of cement are commonly used today due to their cost and binding power. Non-hydraulic cementHydraulic cement is the cement that cannot harden when used. contact with water, compared to the container of hydraulic cement. When non-hydraulic cement is used in construction, it must be kept dry so that the structure is maintained. Due to the difficulties of waiting, which is rarely used in today's market.Hydraulic CementHydraulic cement is a cement with fixing ability and hardens after being combined with water. Hydraulic cement is mainly composed of limestone, some clay minerals and gypsum, which are burned together at high temperatures. Hydraulic cement is the cement used today in main construction.