Resistance of graphene oxide-modified cement pastes to hydrochloric acid attack

This study investigated the hydration, rheology, and diffusion resistance of cement pastes involving up to 0.09 wt% graphene oxide (GO) under constant exposure hydrochloric (HCl) acid for four weeks. Samples containing GO revealed a reduction in mass loss sectional area when compared control sample without any GO, highlighting potential inclusion improving matrix attack. While higher dosages reduced workability hydration fresh paste, use improved against HCl by densifying microstructure. The presence alumina-silica hydrogel was observed altered zones exposed specimens. this chemical change occurred all GO-modified pastes, micro-hardness than (i.e. GO). obtained results indicated that 0.045 increased leaching aluminium silicon ions, which could effectively prevent formation microcracks form protective barrier aggressive species extreme environments.