Review on effect of graphene oxide reinforcement on properties of cement concrete

Abstract

The main drawback of producing concrete by traditional methods is the rise in carbon emission. Graphene has many remarkable features such as an eco-friendly concrete material, high elasticity; Elastic modulus (E) around 425GPa, tensile strength is around 1.3TPa so designated as 21st century material. This study investigates the effect of graphene oxide (GO) reinforcement to improve compressive and split tensile strength of concrete. The structure, TEM and AFM images of GO are studied. The GO was mixed at 0.01%, 0.02%, 0.03%, 0.04%, 0.06%, 0.08% and 0.1% by weight of cement in concrete for various studies. The effect of GO to improve the compressive strength and split tensile strength for M20, M25, M40, M60,M80 concrete grades is worked out. The average maximum rise in compressive strength and split tensile strength was found to be 24.3 % and 51.9% respectively. The highest rise in compressive strength of 34.08%, 46.3% was found to be for M25 grade similar proportion concrete and M25 fly ash concrete at 0.08%, 0.03% GO. The highest rise in split tensile strength of 45.6%, 189.2% was found to be for M40 fly ash, M80 fly ash GGBS concrete at 0.03% and 0.1% GO. From the study it can be concluded that use of GO in various grades of concrete is effective to enhance both compressive and split tensile strength of concrete. GO dosages like 0.03%, 0.08% and 0.1% proved to be optimum dosages in higher strength achievement.