EXPERIMENTAL INVESTIGATION ON HIGH PERFORMANCE FLY
ASH CONCRETE IN NORMAL AND AGGRESSIVE ENVIRONMENT
29th Our World in Concrete and Structures (OWICs) - 2004
K. Arunachalam*, Thiagarajar College of Engineering, India
R. Gopalakrishnan, Thiagarajar College of Engineering, India
Fly ash, High performance Concrete, Aggressive Environment
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 fly 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 fly ash to about 25-35%. An Experimental investigation was conducted to make a comparative study on the properties of High Performance Concrete with fly ash (25% and 50% replacement) and without fly ash (control concrete) in normal and aggressive environment. It is concluded that High Performance Fly ash Concrete performs well both in normal and aggressive conditions when compared to control cement concrete without fly ash.