Cement
Cement, in general, is an adhesive substance but, in a narrower sense, it’s the binding material used in building and civil engineering construction. Cements of this kind are finely ground powders that, when mixed with water, set to a hard mass. Setting and hardening result from hydration, which is a chemical combination of the cement compounds with water that yields submicroscopic crystals or a gel-like material with a high surface area. Because of their hydrating properties, constructional cements, which will even set and harden under water, are often called hydraulic cements. The most important of these is Portland cement.
Lime
Lime is one of the most important building material used since ancient times. Lime has been used as a cementing material in many historical constructions in India. Lime is not only important material for building purposes; it is also used in so many other manufacturing processes. Lime is produced by burning chalk or limestone in a kiln.