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Which among the following are essential constituents of Portland cement?

Options

  1. ASand, lime, clay
  2. BSilica, alumina, lime
  3. CSilica, lime, graphite powder
  4. DSand, graphene, clay

Correct answer

B. Silica, alumina, lime

Step-by-step solution

Portland cement, which is the most common type of cement used in construction, is composed primarily of the following essential constituents: - Silica (Silicon dioxide): Provides strength to the cement and contributes to its early strength development. - Alumina (Aluminium oxide): Helps in quick setting and hardening of cement. - Lime (Calcium oxide or calcium hydroxide): Acts as a binding material and contributes to the strength and durability of the cement.

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