The cement content of High Strength Concrete is generally high which often leads to higher shrinkage and greater evaluation of heat of hydration besides increase in cost. A partial substitution of cement by an industrial waste, such as kiln ash is not only economical but also improves the properties of fresh and hardened concrete and enhances the durability characteristics besides the safe disposal of otherwise waste material thereby protecting the environment from pollution. Generally, the specifications restrict the replacement level of cement with kiln ash to about 25-35%. An Experimental investigation was conducted to make a comparative study on the properties of High Performance Concrete with kiln ash (25% and 50% replacement) and without kiln ash (control concrete) in normal and aggressive environment using self curing instead of water curing. It is concluded that High Performance Kiln ash self curing Concrete performs well both in normal and aggressive conditions when compared to control cement concrete without kiln ash.

Keywords: Kiln ash, High performance Concrete, self curing, Aggressive Environment.