Patent filed for graphene–polysaccharide concrete admixture

Patent proposes stabilising graphene in an aqueous admixture with galactomannan (e.g. guar gum) for use in concrete.

Bio Graphene Solutions Inc. has filed an international patent application (WO 2025/194259 A1) for a graphene-based concrete admixture that uses a polysaccharide dispersant—notably galactomannans such as guar gum—to stabilise graphene or graphite in water for addition to cementitious mixes. The patent specifies a carbon material-to-dispersant ratio of 3:1 to 20:1, optional small-dose surfactants and acids, and compatibility with common SCMs such as silica fume and fly ash.

The claimed benefits target strength increases at equal or reduced cement content, pointing to potential embodied carbon reductions and early strength gains. Form factors include monolayer/few-layer graphene flakes or nanoplatelets, and optional lignin derivatives (e.g. lignosulfonate) or additional water reducers. Preparation is described as a one-pot, water-based process, avoiding harsh pre-functionalisation of graphene.

If the dispersion and dosing can be made robust at plant scale, this route could offer lower-clinker, higher-performance mixes for ready-mix, precast and repair.

This is a patent application, not a product—no independent performance data, durability results (e.g. chloride ingress, freeze–thaw) or UK conformity to BS EN 934 / BS 8500 are provided. Producers would need verification on workability, set times, pumpability, QA/QC, and pricing before specification.