The potential applications of industry by products in concrete are to be partial aggregate replacement or partial cementious materials depending on their chemical composition and grain size. Recent studies have shown that reuse of very finely grounded ewaste in concrete has economical and technical advantages for solving the disposal of large amount of ewaste, reuse in complete industry may be the most feasible application. Ewaste particles can be used as coarse aggregate, fine aggregate, fine filler in concrete depending on its chemical composition and particle size.