Sugarcane bagasse ash (SCBA) is a by-product of the sugar industry that is generated when sugarcane bagasse is burned to generate electricity. After all of the sugarcane's economically valuable sugar has been extracted, sugarcane bagasse is made. In factories that produce electricity from sugarcane, disposing of this material is a common environmental problem. Around 61,000 tonnes of SCBA are produced each year by Kakira Sugar Limited (KSL), but only about 30,000 tonnes are used, leaving the rest to be dumped, posing an environmental danger. The aim of this study was to see if bagasse ash could be used as a cement substitute in the construction industry. The concept of using SCBA as a building material has helped the sugarcane processing mills produce more cash flow. Chemical properties of bagasse ash samples obtained from KSL were investigated. The compressive strength of mortars containing ordinary Portland cement and SCBA in proportions of 0%, 10%, 15%, 20%, 25%, 30%, and 40% as a cement substitute was studied. Three replicates were made and tested, with bagasse ash replacing ordinary Portland cement in the above-mentioned proportions. At a test age of 28 days, the results showed that ordinary Portland cement can be substituted by SCBA up to 20% without affecting the compressive strength of the mortar. These findings indicate that substituting SCBA for cement may result in lower construction costs. As a result, it is safe to substitute cement with sugar cane bagasse ash up to 20% of the time.
Author(s) DetailsE. Basika
Department of Agricultural and Bio-Systems Engineering, Makerere University, P.O.7062 Kampala, Uganda.
J. Kigozi
Department of Agricultural and Bio-Systems Engineering, Makerere University, P.O.7062 Kampala, Uganda.
N. Kiggundu
Department of Agricultural and Bio-Systems Engineering, Makerere University, P.O.7062 Kampala, Uganda.
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