Application of Graphene Oxide Nanoparticles to Cementitious Composites to Mitigate the Effects of Attacks by Aggressive Agents

This study investigates the potential of adding 0.03% graphene oxide (GO) nanoparticles into cementitious composites, assessing their mechanical performance and resistance to carbonation. The results indicate a 26% increase in compressive strength, from 23.92 to 32.42 MPa, with tensile strength increasing by an average of 1.14 MPa. Furthermore, the composite exhibits 14% lower capillary water absorption, enhancing resistance to moisture ingress. In terms of carbonation resistance, the addition of GO reduces the carbonation front by approximately 46% compared to the reference samples. Service life estimations suggest that, under equivalent exposure conditions, a structure incorporating GO would experience a degradation equivalent to five years, whereas a conventional structure would degrade over 20 years. These findings highlight the effectiveness of GO nanoparticles in enhancing both the mechanical properties and durability of cementitious materials.