Mechanical Properties of Concrete with Copper Slag and Fly Ash by DT and NDT

Abstract

This paper presents a laboratory study about the influence of combination of Fly Ash (FA) and Copper Slag (CS) on the mechanical properties of concrete. Concrete mixtures are made with 10%, 20% and 30% replacement of cement with low lime (class F) fly ash by mass and fine aggregate is replaced by CS from 0 - 100% with an increment of 20% by volume. On the hardened concrete, Destructive Test (DT) methods such as compressive strength (7, 28, 56 and 90 days), split tensile strength (28 days) and flexural strength (28 days) are determined. Moreover, Non-Destructive Test (NDT) methods such as Ultrasonic Pulse Velocity (UPV) and Digital Schmidt Rebound Hammer (RH) tests are also determined. Based on the experimental results, both NDT and DT techniques, the results are favorable for concrete with industrial wastes such as Fly Ash and Copper Slag and also superior to control concrete.