Hydraulic cement mix and process for its production.

摘要

A hydraulic cement mix comprising a hydraulic cement, aggregate in an amount of up to 80 % by weight based upon the total weight of said cement mix, sufficient water to effect hydraulic setting of the cement, and air-entraining additives consisting essentially of a coconut fatty acid diethanolamide produced by reacting alkyl ester of coconut acid with diethanolamine and capramide diethanolamine, said additives being in an effective amount whereby air will be entrained in said mix in an amount of 3 % to 9 % by volume of said mix.