Hypo Sludge – A Green Building Material

In developing countries like India, approach to sustainable development has become as important as economic development. Sustainability issues have grown with the increase in industrialization which has led to environmental pollution to the land as well as to water bodies. Industrial wastes such as fly ash (from thermal plant), hypo sludge (from paper mill industry) etc. which are purely inorganic, generated annually leading to the problem of their disposal. Also, cement production accounts in releasing carbon dioxide which is an alarming warning to the environment. To conserve the natural resources attempts have been made though concrete technology. So replacement with the industrial waste as supplementary material in the concrete will help out to solve the problems stated above. This paper deals with the experimental investigation of the concrete strength blended with hypo sludge. Hypo sludge with 0%, 5%, 10%, 15% and 20% percentage was used in M-20 concrete mix. The parameters such as workability, compressive strength, splitting tensile strength and flexural strength were tested. The strength was checked after 7, 14 and 28 days.