Paper Contents
Abstract
Looking into the present era of road scenario in the developing countries like India, construction of rigid pavement is encouraging confidence of engineers due to its excellent riding surface and pleasing appearance. The life of cement concrete road pavements is much more than bituminous roads but unfortunately, due to its high initial cost it is not possible to construct all the roads with cement concrete, because cement is the major constituent which is used as a building material as well. Also concrete is weak in tension. So there is a need to look for the materials that can be used as partial replacement of cement and other ingredients of conventional concrete with improved mechanical properties of the concrete. These materials should fall under the category of low cost materials so that economy is maintained. The fusion of limestone with silica in the presence of hot magmas leads to the formation of wollastonite micro fiber, chemically known as calcium meta-silicate. Due to the presence of high amount of silica, wollastonite has the potential to be used as an admixture in concrete. Bagasse, an inexhaustibly delivered rural waste, is the build-up of sugarcane that is acquired after extraction of juice. The addition of bagasse ash to concrete improves compressive strength of concrete but contributes less to improve other properties like tensile strength, ductility. resistance to cracking etc. The present investigation has been aimed to determine the influence of wollastonite-bagasse ash combination on the strength of concrete to make economical and improved concrete pavement. In this study, wollastonite was used to replace cement by 5, 7.5, 10, 12.5, 15 and 17.5 percent while bagasse ash was used to replace 10 percent of sand of the control concrete.
Copyright
Copyright © 2024 VISHNU VM. This is an open access article distributed under the Creative Commons Attribution License.
