Question

Which compound is used in manufacture of cement?

Answer 1

gypsum is used in manufacturing of cement to increase its hardening time.

Answer 2

Hello!!

》Portland Cement is the basic ingredient of concrete.

》Concrete is formed when portland cement creates a paste with water that binds with sand and rock to harden. 

》Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron and other ingredients.

Hope it helps..!!