What is the good introduction for cement?
Actually cement is nothing but a normal paste or binder.. there is a setting time of a cement .. time of every cement varies depending on the GYPSUM used. In the most general sense of the word, a cement is a binder, a substance which sets and hardens independently, and can bind other materials together. The word cement traces to the Romans, who used the term opus caementicium to describe masonry which resembled concrete and was made from crushed rock with burnt lime as binder. The volcanic ash and pulverized brick additives which were added to the burnt lime to obtain a hydraulic binder were later referred to as cementum, cimentum, c?ment and cement.
