Experimental Studies of Strength and Cost Analysis of Mortar Using Bagasse Waste Obtained from Sugarcane Factory of Bangladesh

Sugarcane bagasse is an available waste material in Bangladesh which is a by-product of sugar factories. Proper uses of bagasse ash in cement mortar may give the optimum solution for environmental issues. Whereas the construction industry is rapidly expanding in Bangladesh, so the country needs a large amount of cement. In this study Sugarcane bagasse ash (SCBA) was used to replace some part of Ordinary Portland Cement (OPC) and Portland Composite Cement (PCC) in the mortar. Bagasse sample was collected from Natore sugar mill. After collection, bagasse was dried in sun for a week and then it burned in at 800°C to 1000°C temperature for 20 minutes. OPC and PCC was replaced by SCBA at different percentage ratios at 0%, 5%, 7.5%, 10%, 12.5%, 15%, 17.5%, 20%, 22.5%, 25%, 27.5% and 30%. The compressive strengths of different mortar with SCBA addition were also investigated. Strength was tested for 3, 7 and 28 days. The test results indicated that up to 30% replacement of OPC by Sugarcane bagasse ash (SCBA) in mortar satisfied the BNBC (2006) code. On the other hand, up to 27.5% replacement of PCC by SCBA in the mortar was satisfied by code. Cost analysis showed the economic advantages of using SCBA. For OPC-SCBA mortar the cost was reduced over 20%. On the other hand, the cost was reduced by almost 20% for PCC-SCBA mortar. Use of SCBA can also reduce the waste disposal problems of the sugarcane industries.

کلیدواژه ها:

Industrial Waste ، Sugarcane Bagasse ، Ash ، Cement Mortar ، Pozzolanic material ، Cement replacement ، Sustainable ، Compressive strength ، Cost effective