Study on the Performance of Concrete using Sugarcane Bagasse Ash and Coal Bottom Ash

The basic objectives of the sustainable development are the preservation of natural resources, reduction of environmental pollution and appropriate utilization of waste materials. In case of concrete construction, these objectives can be fulfilled by partial replacement of cement and aggregates with agrowaste like sugarcane bagasse ash, rice husk ash etc. and industrial waste like copper slag, steel slag, fly ash, coal bottom ash etc. The present study focuses on investigating the effect of Sugarcane Bagasse Ash (SCBA) as partial replacement of cement and Coal Bottom Ash (CBA) as partial replacement of fine aggregates in concrete. This study primarily deals with the characteristics of concrete, including compressive strength and workability. Different mixes of concrete were prepared at different replacement levels of SCBA (10%, 15% & 20%) with cement and CBA (10%, 20%, 30% & 40%) with fine aggregates. The water/cement ratio in all the mixes was kept at 0.55. The workability of concrete was tested immediately after preparing the concrete whereas the compressive strength of concrete was tested after 14 and 28 days of curing. Based on the test results, a combination of 10% SCBA and 10% CBA is recommended.