Concrete is strength and tough material but it is porous material also which interacts with the surrounding environment. The durability of concrete depends largely on the movement of water and gas enters and moves through it. To produce low cost concrete by blending various ratios of cement with hypo sludge & to reduce disposal and pollution problems due to hypo sludge it is most essential to develop profitable building materials from hypo sludge.This project presents result of an experimental investigation carried out to evaluate effects of replacing cement by hypo sludge which is an industrial waste by-product on concrete strength .The primary aim of this research was to evaluate the durability of concrete made with hypo sludge. The partial replacement by replacing cement via 10%, 20%, 30%, and 40%, of Hypo Sludge for mix design of M.The Investigation was carried out for the following test like compressive strength and split tensile strength , Flexural strength. Paper making generally produces a large amount of solid waste. Paper fibers can be recycled only a limited number of times before they become too short or weak to make high quality paper. It means that the broken, low- quality paper fibers are separated out to become waste sludge. Keeping this in view, investigations were undertaken to produce low cast concrete by blending various ratios of cement with hypo sludge.