Utilizing Green Graphene to Enhance Cement Compressive Strength and Accelerate Curing

This study explores the impact of cost-effective Green Graphene (GG) on cement hydration. GG addition to portland cement (PC) significantly improves compressive strength, energy absorption, and fracture strain by 88.38%, 144.84%, and 43.79%, respectively, over 7 days. The GG/PC composite shows a 235.29% increase in hydrophobicity. Acting as a pore-filler, GG creates a dense matrix with strong bonding, catalyzing hydration, and serving as a nucleating agent. GG’s porous nature offers active sites for water reservoirs, accelerating hydration and reducing cure times. Derived from abundant agricultural biomass, GG’s cost-effectiveness makes it an environmentally conscious alternative. Partial substitution of GG in cementitious materials has the potential to reduce the carbon footprint associated with conventional cement production, contributing to the development of sustainable cementitious materials with improved performance and diminished ecological impact.