It is a particular class of cement which entrains tinny air bubbles in concrete. Since, it is observed that entrainment of air or else formation of gas bubbles whilst applying cement boosts resistance to frost action, scaling, fire along with other similar defects.
It is created by grinding tiny air entertaining materials with clinker by means of adding some resinous materials such as vinsol resin to ordinary portland cement.
It is particularly used in regions where the temperature is very low.
It is exercised where the de-iceing chemical is employed.