Strength Performance of Mortar Containing Bagasse Ash and Rice Husk Ash as Cementitious Material

Abstract

The use of cement as a main binding materialin the field of civil engineering is no doubt at the next level due to growth inurbanization.It is mainly used to make cementmortar, concrete, and other composite construction material. The extensive use of OPC in the constructionindustry has caused increment in the production of CO2at atmosphere. This has deteriorated theenvironment and has urged everyone to study and research the sustainable progress by using differentwaste products as replacement in concrete and mortar. Therefore, the purpose of this study was toinvestigate the strength performance of cement mortar containing Sugarcane Bagasse Ash (SCBA) andRice Husk Ash (RHA) as a Cementitious Material. In this study, we have substituted the cement withdifferent percentages i.e.,0%, 5%, 10% and 15% of both sugarcane bagasse ash (SCBA) and rice husk ash(RHA) to obtain sustainable mortar. Flowability, Density and compressive strength wereexamined by casting 36 standard cubes of 50mm size and cured for 3, 7 and 28 days. Testoutcomes indicated that the flowability of mortar paste kept on decreasing with the increase in partialreplacement bySCBA and RHA. As we have fixed the water cement ratio for all type of mixi.e., 0.5.From the outcomes of Density and Compressive Strength of Cubes cured in plain water, we come to knowthat as % replacement was increasing the density and compressive strength of cubes cured was reducing.For Compressive Strength, it wasfound that at each specified day, the compressive strength of cubes up to10% replacement has given a reasonable value but intensely decreased at 15% replacement. At 5%replacement of both SCBA and RHA on 28th day test it was pointed that compressive strength of cubeshas the highest values for all % of replacement.