This study supports the use of ultrasonic pulse velocity technique for non-destructive testing on concrete. The cement in the M30 grade of concrete is substituted with red mud in percentages such as (5%, 10%, 15%, 20%, 25% and 30%) with a ratio of (1:2.0:3.54) and a water cement ratio of (0.45) for the curing period of 7 and 28 days.The correlation between compression strength and UPV values is determined using regression analysis. The results shows that the values are respectively, 2.52% and 3.52% greater than normal compressive strength. The construction industry will be able to utilize waste red mud as a challenging building material according to this research.

Compressive Strength, Non Destructive Test, Red Mud, Regression Analysis, Ultrasonic Pulse Velocity.