Effect of Strength Parameters Upon Partial Replacement of Moderately Burnt and Completely Burnt Sugarcane Bagasse Ash

Abstract

AbstractManufacturing of cement becomes expensive and harmful for the environment; hence the need arises to utilize alternate cementitious materials. Sugar producing industries produce bagasse ash as waste material and the difficulty in disposal gives direction to this research. Recently, bagasse ash is widely utilized in the construction industry either as a filling material, pavement concrete or partially as binding material. Bagasse ash is utilized in the construction industry due to the presence of pozzolanic properties in huge quantities. Sugarcane bagasse is a waste product produced by the sugar manufacturing industry. The ash produced from bagasse is usually burnt at 400–500 °C, a commonly used replacement temperature, which is usually dark grey in colour. The impact of sugarcane bagasse ash (SCBA) partially burnt and burnt at 1000 °C was studied in this work, although the optimum percentage replacement of bagasse ash was established at 10% for compressive, flexure and split tensile, and the bagasse ash burnt at 1000 °C displays exorbitant replacement percentage, in terms of compressive, flexure, split tensile and RCPT test. The study was conducted to evaluate mechanical and durability properties by casting cubes, cylinders and prisms with various percentages of SCBA burnt at 400°–500 °C and SCBA burnt at 1000 °C, each was compared to one another and optimum replacement was found to be 25%, which is 15% increase when compared to conventional replacement procedure followed. From durability studies, it was observed that the SCBA2 can be replaced up to 20% due to the existence of unstructured silica in huge amounts compared to the concrete with SCBA1 and control mix.KeywordsBagasse ashX-ray diffractionHydrationChloride diffusionAcid resistance