ISSN (0970-2083)

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Research Article Open Access

UTILIZATION OF INDUSTRIAL EFFLUENT TREATMENT PLANT (ETP) SLUDGE AS PARTIAL REPLACEMENT FOR CEMENT IN CONCRETE

Abstract

A systematic study was undertaken to utilize industrial effluent treatment plant (ETP) sludge as partial replacement for cement in M20 concrete. The ETP sludges selected for this study are those generated by lime treatment of automobile, engineering and lead battery industry effluents. The cement in the concrete mix was replaced by 5, 10 and 15 weight percentage of ETP sludges and concrete blocks (10cm x 10cm x 10cm) were prepared. The concrete blocks were subjected to unconfined compressive strength (UCS) at different curing days (7, 14, 21 and 28 days) to assess the strength. The highest UCS value was obtained in all the three cases studied by replacing cement with 5% sludge after 28 days curing. With this optimum sludge content of 5 weight %, the UCS value of concrete were 47.6 N/mm2, 52.9 N/mm2 and 49.8 N/mm2 for automobile ETP sludge, engineering ETP sludge and lead battery sludge respectively as against 50.4 N/mm2 for the control without sludge.

G. SHIVANATH, E. ARUMUGAM AND V. MURUGESAN

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