Strength properties of graphene oxide cement composites

Abstract

Ordinary Portland Cement (OPC) is the key ingredient in concrete, and it is the primary choice in the construction and building environment. Emerging multi-functional materials have gained popularity by incorporating into OPC due to its excellent engineering properties. OPC resembles poor resistance to crack formation, low tensile strength, and strain capacity due to its brittle nature. Graphene and its derivatives like Graphene Oxide, Carbon Nano Fibres, Carbon Nano Tubes, and silica particles have shown a pathway in forming a super concrete by their extraordinary mechanical properties. Graphene oxide directly interacts with cement particles due to its excellent interfacial interaction properties. This paper represents the research on enhanced traditional concrete properties with Graphene Oxide. GO is added at several percentages like 0.01%, 0.02%, 0.03%, 0.04%, 0.05% by weight of cement to investigate the strength properties of cementitious composites. Nano structural properties and variations in hydration of cement are investigated by XRD, and AFM analysis. SEM, EDX tests determine the changes in mineral compounds when converted into hydrated crystals in the cement matrix. Addition of Graphene Oxide to cement provides a new aspect in understanding silicate hydrate phase changes. This will provide a potential for Nano Technology challenges in the construction industry and energy consumption reduction.