Ques: What are the various ingredients used in the manufacture of cement?

Ques: What are the various ingredients used in the manufacture of cement?

Answer:Various ingredients are :

lime 60-67% ,Silica 17-25%,Alumina 3-8%,Iron oxide 0.5-6%,Mangnesium oxide 0.1-4%, Sulphur trioxide 1-3%and Gypsum3-4% during grinding process.