What is cement, its composition and role of its constituents ? Describe briefly.

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Cement is a binding material used in construction. It is composed of limestone, clay, gypsum, and other additives. Its constituents play different roles in the hardening process.

Cement is made up of four main constituents: limestone, clay, gypsum, and other additives.
Limestone provides calcium oxide (lime) and contributes to the strength and hardness of cement.
Clay provides silica, alumina, and iron oxide, which help in the formation of cement clinker.
Gypsum regulates the setting time of cement and prevents flash setting.
Other additives like fly ash, slag, or pozzolana may be included to enhance specific properties of cement.
The constituents are finely ground, mixed, and heated to form clinker, which is then ground into a fine powder to produce cement.
Water is added to the cement powder to create a paste, which hardens over time through a process called hydration.
The hardened cement paste binds aggregates together to form concrete, providing strength and durability to structures.

What is cement, its composition and role of its constituents ? Describe briefly.

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