The raw materials needed to make cement are,Calcium oxidesilicon dioxideAluminium oxideIron oxideMagnesium oxideAlkaliessulphurtrioxide.
their is calcium in cement because it mixes well and can stick wel
The raw materials needed to make ordinary portland cement are,Calcium oxidesilicon dioxideAluminium oxideIron oxideMagnesium oxideAlkaliessulphurtrioxide.
Cement contains silica and calcium
calcium carbonate :)
cement is made up of calcium silicateand alminate
It's Calcium FerroAluminate, written in cement chemist notation
calcium oxide silia aluminium
The very basic chemical compound of cement is Calcium Hydroxide. The calcium hydroxide is mixed with water and the carbon dioxide in the air acts on it to harden it.
carbondioxide
Chalk, cement
Hydrated cement produces CaO. So calcium oxide is a major constituent. Silicon dioxide is also produced resulting in calcium silicate.