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

Question

Admin · Accepted Answer

Lime 63% ; silica 22% ; other ingredients 15%

Admin · Answer

Lime 22% ; silica 63% ; other ingredients 15%

Admin · Answer

Silica 40% ; lime 40% ; other ingredients 20%

Admin · Answer

Silica 70% ; lime 20% ; other ingredients 10%

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