Navigate

The constituents of porland cement are

The constituents of porland cement are

Options

(a) CaCO₃+clay+sand
(b) CaCO₃+aluminium silicate
(c) CaCO₃+clay+SiO₂
(d) CaCO₃+gypsum+clay

Correct Answer:

CaCO₃+gypsum+clay

Explanation:

The essential constituents of portland cement are CaO, silica, alumina, magnesium oxide, and ferric oxide. The essential raw materials used are CaCO₃, gypsum and clay. CaCO₃ provides CaO and Clay provides silica as well as alumina and ferric oxide.

UP2001
admin:

Related Questions

  1. Proteins gives purple colour when tested with
  2. Fish die in water bodies polluted by sewage due to
  3. The two ice cubes kept pressed against each other, stick to each other due to
  4. The weight of iron which will be converted into its oxide(Fe₃O₄) by the action of 18g
  5. Which of the following statements is false