Air entraining cement

Air entraining cement is just the ordinary cement in which 0.01 to 0.05 by weight of air entraining agents have been added . Air entraining agents are foaming agent such as vinsol , resin and darex . Air entraining foaming made with such a cement contains munute , well distributed air bubbles throughtout the concrete mass . Due to air bubbles strength of this concrete gets reduced by 10 to 15 percent . Air content in the form of the concrete . Such a cement is resistant to severe frost action and is immune to surface scaling due to application of coomon salt or calcium chloride used for de-icing purposes of the concrete pavements . Concrete made from this cement is more plastic and workable and develops less segregation .