Portland cement contains the following amount of CaO

Question

Portland cement contains the following amount of CaO (A) 5-15% (B) 20-35% (C) 50-60% (D) 70-80%

Tardigrade Admin · Accepted Answer

Composition of Portland cement is as follows:
Calcium oxide CaO 61.5%
Silica SiO₂ 22.5%
Alumina Al₂ O 3 7.5%
Magnesium oxide MgO 2.5%
Ferric oxide Fe₂O₃ 2.0%
Potassium oxide K₂O 1.5%
Sulphur trioxide SO₃ 1.0%
Sodium oxide NaO₂ 1.5%

Q. Portland cement contains the following amount of CaO

5-15%

20-35%

50-60%

70-80%

Composition of Portland cement is as follows: Calcium oxide CaO 61.5% Silica SiO2 22.5% Alumina Al2 O 3 7.5% Magnesium oxide MgO 2.5% Ferric oxide Fe2O3 2.0% Potassium oxide K2O 1.5% Sulphur trioxide SO3 1.0% Sodium oxide NaO2 1.5%

Q. Portland cement contains the following amount of $C a O$

Composition of Portland cement is as follows:
Calcium oxide CaO 61.5%
Silica SiO₂ 22.5%
Alumina Al₂ O 3 7.5%
Magnesium oxide MgO 2.5%
Ferric oxide Fe₂O₃ 2.0%
Potassium oxide K₂O 1.5%
Sulphur trioxide SO₃ 1.0%
Sodium oxide NaO₂ 1.5%