For the manufacture of Portland cement, the proportions of raw materials used, are

- 1
  
  lime 63% ; silica 22% ; other ingredients 15%
- 2
  
  silica 22%; lime 63%; other ingredients 15%
- 3
  
  silica 40%; lime 40%; other ingredients 20%
- 4
  
  silica 70%; lime 20%; other ingredients 10%

Display Comments

Leave a comment

Login at first then you can submit comment. Click here to login.