Question

Write the average composition of Portland cement.

Answer 1

• The average composition of Portland cement

1) Silica ( SiO2) - 17 to 25%

2) Lime ( CaO)- 60 to 67%

3) Sulphur trioxide ( SO3) - 1 to 3%

4) Iron Oxide (Fe2O3) - 0.5 to 6%

• Portland cement is used around the world. It is a common type of cement.

• The main ingredients of Portland cement contain concrete, mortar, stucco, grout.

• It causes skin irritation because it contains some hazardous chemical compounds.

• Portland cement available at low cost because naturally occurring materials used in this cement.