Abstract
Abstract: Disposal of wastes is one of the issues confronting the world today. Scientists all over the world are making efforts to minimize the production of wastes and to effectively recycle the waste. Reducing the green house gas emission and recycling of industrial wastes are the key areas of concern. Production of wealth will be a boon to the industries as the benefits are twofold: the pollution problem is addressed and the raw material shortage problem is also effectively tackled. Against this back-drop, in the present work, copper slag (CS) and Rice Husk Ash (RHA) is utilized as viable substitutes in concrete. M20 grade concrete with different mix proportion of sand replaced with copper slag from 0 to 70% and 0 to 25% cement replaced with Rice Husk Ash (RHA) and a combination of both (30% CS +10% RHA) is prepared. Tests for strength (compression and split tensile strength), acid resistance test and SEM analysis are carried out. The results of this work undertaken have revealed that peak strength is obtained on 30% replacement of sand with copper slag (45.3N/mm2) and 10% of cement with RHA (38.8N/mm2) and the combined mix gives good strength of 46.5N/mm.2 Keywords: Copper slag, Rice Husk Ash, Compression test, Acid resistance test, waste disposal
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