Influence of Graphene Oxide on Static and Dynamic Characteristics of Fly Ash Based High Strength Concrete

IJEP 42(13): 1647-1652 : Vol. 42 Issue. 13 (Conference 2022)

P. V. R. K. Reddy1* and D. Ravi Prasad2

1. Anil Neerukonda Institute of Technology and Sciences, Department of Civil Engineering, Visakhapatnam – 531 163, Andhra Pradesh, India
2. National Institute of Technology, Department of Civil Engineering, Warangal – 506 004, Telangana, India


Graphene oxide (GO) has been considered one of the potential nanomaterials for use as a reinforcement in cementitious composites because of its unique characteristics. The static and dynamic mechanical characteristics of GO and fly ash-based high strength concrete (GFHC) were investigated experimentally in this study. The static characteristics such as compressive strength and elastic modulus were evaluated using a compressive strength test. The modal parameters such as fundamental natural frequency and damping ratios for the first three modes of concrete beam in free-free conditions were determined using experimental modal analysis. Furthermore, the dynamic modulus and dynamic poissons ratio were calculated using fundamental resonant frequencies as specified by ASTM C215-19. The effect of 0.15% GO addition and fly ash as a cement replacement at 0%, 10%, 20% and 30% was studied in this investigation. The results of the experiments revealed that adding GO and cement replaced with fly ash enhanced the compressive strength and static Young’s modulus of concrete. The fundamental natural frequencies and damping ratios of GFHC mixes were found to be higher than those of control concrete. When GFHC mixes were compared to control concrete, their dynamic elasticity modulus, dynamic rigidity modulus and dynamic Poisson’s ratio were improved. It has been observed that adding GO and partially replacing cement with fly ash could generate improved dynamic properties


Graphene oxide, Fly ash, Static mechanical properties, Dynamic mechanical properties


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