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Concrete is one of the most promising places to use graphene, because a very small dose can change how the material performs and it fits into existing mixing processes.
What our testing showed
Our graphene concentrate, added to concrete at about 1% of the mix, gave a 67% gain in compressive strength in testing. Results depend on the mix design, cement, aggregates and curing, so we test with you in your own mix before any change to a design. See graphene in concrete and the concrete additive press release.
Why higher compressive strength matters
- Design options: stronger concrete gives engineers more room to work with section sizes and loads, within the codes that apply.
- Material use: if a design can meet its requirements with less material, that can reduce cement use, which is a large share of concrete's carbon footprint. Any such saving has to be confirmed for each mix and design.
- Durability: graphene is being researched for its effect on permeability and cracking in concrete, which affect how long structures last. We don't publish durability numbers yet.
Other construction uses being explored
Across the industry, graphene is also being studied in coatings for corrosion protection, in rebar and reinforcement (see our graphene rebar project), in asphalt and in polymer composites for building products. See also graphene in construction.
Want to test graphene in your mix? Contact us with your mix design and volumes, or read more about what we make.
For concrete producers: our graphene concrete additive is supplied as a liquid graphene dispersion and gave 67% higher compressive strength at about a 1% dose in testing.
