Question

Chemical and physical process of hydration in cement

Answer 1

Answer:

The water causes the hardening of concrete through a process called hydration. Hydration is a chemical reaction in which the major compounds in cement form chemical bonds with water molecules and become hydrates or hydration products.

Answer 2

Chemical and physical process of hydration in cement

Explanation:

• It is the reaction (series of chemical reactions) of cement with water to form the binding material. In other words, in the presence of water, the silicates ($C_3S$ and $C_2S$) and aluminates ($C_3A$ and $C_4AF$) form products of hydration which in time produce a firm and hard mass - the hydrated cement paste.

• Chemical process: The water causes the hardening of concrete through a process called hydration. Hydration is a chemical reaction in which the major compounds in cement form chemical bonds with water molecules and become hydrates or hydration products.

• Physical process : As the reactions proceed, the products of the hydration process gradually bond together the individual sand and gravel particles, and other components of the concrete, to form a solid mass.

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