Graphene-Enhanced Mechanical Properties in Cementitious Composites
Summary
Graphene and its derivatives have emerged as transformative nano-reinforcements in cementitious systems, offering remarkable gains in strength, toughness and durability. The incorporation of few-layer graphene, graphene oxide and graphene quantum dots into Portland cement matrices refines microstructure through nucleation of hydration products, bridges microcracks and reduces pore connectivity. These effects accelerate the formation of calcium silicate hydrate (C-S-H) phases, diminish total porosity and enhance interfacial bonding, leading to substantial increases in compressive, flexural and tensile strength. Beyond mechanical reinforcement, graphene-modified concretes exhibit multifunctional behaviour, including improved electrical conductivity, thermal regulation and self-sensing capabilities. Such enhancements support the development of ultrahigh-performance concretes (UHPC) and smart structural elements with reduced permeability, superior freeze-thaw resistance and embedded damage monitoring. The global push for sustainable infrastructure benefits from graphene’s potential to lower material consumption, extend service life and reduce carbon footprint, paving the way for resilient buildings, transport networks and marine structures in diverse climatic and loading conditions.
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Graphene-Enhanced Mechanical Properties in Cementitious Composites publication trend
The graph below shows the total number of articles in graphene-enhanced mechanical properties in cementitious composites across all publications each year (not limited to Nature Index journals).
Technical terms
Graphene oxide (GO): Single or few atomic layers of graphite bearing oxygen-containing groups that improve compatibility with cement matrices.
Graphene quantum dots (GQDs): Nanoscale graphene fragments exhibiting quantum confinement, used to nucleate hydration products and bridge cracks.
Electrochemically exfoliated graphene (EEG): Graphene sheets produced by electrochemical delamination, offering high purity and minimal aggregation in alkaline environments.
Calcium silicate hydrate (C-S-H): The primary binding phase formed during cement hydration, responsible for strength development.
Porosity: The volume fraction of voids within hardened cement paste, inversely related to mechanical performance and durability.
Dispersion: The uniform distribution of graphene nanosheets within the cementitious matrix, critical for optimising reinforcement effects.
References
- Chemo-physical mechanisms of high-strength cement composites with suprastructure of graphene quantum dots. Cleaner Materials (2024).
- Ultrahigh Performance Nanoengineered Graphene–Concrete Composites for Multifunctional Applications. Advanced Functional Materials (2018).
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