Cement is mainly a mixture of gypsum, volcanic ashes, fly ash,and lime stone.
There are mainly 3 types of cement
PPC : Portland Porzolana cement ( they are mostly used for normal household concretes
Brands: Ramco, Ultratech, Ambhuja, Chettinad, Sankar
OPC : ordinary Portland cement ( They are mainly used for 3 storage or more building , mainly commercial, government projects etc…)
Brands: Ramco, Chettinad, Ultratech (Need company special approval)
