Feasibility Study on Properties of Multi Layered Concrete Elements

Abstract

A particular concrete grade is frequently used in traditional concrete building, with strength and its durability being the main priorities. In order to understand it’s impact on structural performance as well as visual appeal, this project tests several grades of concrete within a structural element, challenging the traditional method. Higher grade mixtures, like M60, have merits in terms of enhanced strength and durability, while lower grade mixes could be appropriate for some applications. Considering the bottom concrete zone in high-strength reinforced concrete beams primarily struggles tension, supported by reinforcement, while the upper zone suffers compression, the concrete in the bottom zone is not obliged to be equally strong as that of the top zone. Three totally different concrete grades, Low strength concrete (LSC) M10, Normal strength concrete (NSC) M20 and High strength concrete (HSC) M60 have been analyzed in this study. The compressive, flexural, and split tensile strengths of NSC, LSC, and HSC concrete have been investigated distinctly for each concrete grade as well as their combinations such as 1/3 NSC at the bottom and 2/3 HSC at the top and vice versa, 1/3 HSC from the top, 1/3 NSC from the bottom of the soffit, and the remaining 1/3 LSC at the center using cubes, prisms, and cylinders, respectively. The research also focused on the characteristic features of concrete's durability, such as the depth of chlorine penetration and water absorption. The acquired results improve our understanding of the mechanical and durability characteristics of the concrete by recommending a phased casting approach that makes use of many grades of concrete.