Bio Graphene Solutions patents new graphene-based concrete admixture

Canadian materials innovator Bio Graphene Solutions Inc has filed a patent for a new class of graphene-based concrete admixtures that could enhance the strength, stability and durability of cementitious materials.

Published on 25 September 2025 by the World Intellectual Property Organization (WO 2025/194259 A1), the application describes a formulation combining graphene or graphite with plant-derived polysaccharides such as guar gum, fenugreek gum, or locust bean gum. These naturally occurring galactomannans act as dispersants, stabilising the carbon nanomaterials and improving their distribution within the concrete mix.

According to the filing, the admixture maintains a carbon-to-dispersant ratio between 3:1 and 20:1, allowing graphene to be evenly dispersed without clumping—a long-standing challenge in nanomaterial concrete research. The formula can also incorporate lignosulfonates, surfactants, and water reducers, suggesting compatibility with conventional admixture systems used in ready-mix and precast concrete production.

Inventors Gary Van Dusen and Rafaella Oliveira do Nascimento note that the admixture can be combined with cement, sand, aggregates, silica fume, or fly ash, potentially improving compressive strength, water resistance, and long-term durability.

If proven effective in large-scale trials, the technology could offer a bio-based pathway to graphene dispersion—reducing reliance on synthetic polymers while supporting carbon-reduction goals in the concrete industry.

The patent remains pending, but its publication highlights growing global interest in graphene-enhanced construction materials, which promise higher performance with lower cement content and embodied carbon.