What is white Cement? Give its Properties and Uses?

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Special cement

Water-proof cement (hydrophobic cement)

  • This type of cement is prepared by mixing with ordinary or rapid hardening cement a small percentage of some metal stearate ( Ca, Al etc.) at the time of grinding.
  • This type of cement decreases the wetting ability of cement.

Properties:

  • It is more resistant to penetration by water and some oils than that made from ordinary Portland cement.
  • It is also adequately resistant to the corrosive action of acids and alkalies or other harmful salts usually present in industrial waters.
Uses:
  • It is used for the construction of water-retaining structures like tanks, reservoirs, retaining walls, swimming pools, dams, bridges, piers etc.

White cement

  • It is prepared from such raw materials which are practically free from colouring oxides of iron, manganese or chromium.
  • It is white in colour.
  • For burning of this cement, the oil fuel is used instead of coal.

Properties:

  • It is very expensive.
  • It dries quickly.
  • It possesses high strength.
  • It has superior aesthetic values.
  • It should not set earlier than 30 min.
  • It should be carefully transported and stored in a closed container only.
Uses:
  • It is used for floor finish, plaster work, ornamental work etc.
  • It is used in swimming pools, moulding sculptures and statues, painting garden furniture etc.
  • It is also used for fixing marbles and tiles.
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