Abstract

Abstract: Theincreasing amount of wastes is a concerning reality that has arose thesustainability issues for the environment. Large amount of hypo sludge (frompaper mill industry). Are generated around 300 million tons annually. Theirdisposal generally by landfills leads to environmental pollution. Also, theproduction of cement accounts the global warming by releasing carbon dioxide.Therefore an innovative use of the industrial wastes in concrete formulation(rigid pavement) as the supplementary cemetatious material can help inminimizing the environmental problem. This research work is concerned with theexperimental investigation of the strength of concrete blended with hyposludge. The cement has been replaced by hypo sludge in the range of 10% to 40%of weight of cement. Concrete mixtures were produced, tested and compared withthe conventional concrete mix in the terms of workability, compressive strengthand splitting tensile strength. The tests were carried out after 3,7 and 28days. The gradual increase was seen in compressive strength and splittingtensile strength of concrete blended with 10% to 40% of hypo sludge content forall curing ages. Beyond that there is a significant reduction in strength. Themaximum compressive strength and splitting tensile strength of M20 concrete mixwere 31.6 N/mm2 and 3.5 N/mm2. Also the cost analysis indicates that withincorporation of hypo sludge decreases the cost of concrete.

Keywords: HypoSludge, Supplementary Cementations Materials (SCM)