Concrete is the core of our construction work. Our graphene concentrate is dosed at 5% by weight of cement. In independent third-party testing in 2023 it gave a 67.7% gain in compressive strength and a 25% increase in water resistance. Results depend on the cement, aggregates, water-cement ratio and curing, so we test in each producer's own mix. Graphene rebar is in development and is not a product yet.
Start with the graphene concrete additive, how it works and what we tested, and the press release. Below are all articles, projects and press releases tagged Concrete. Graphene is sold only pre-dispersed in a carrier, and pricing and samples are by quote: request a quote or samples.
Concrete strength and embodied carbon
Cement is the binder in concrete. Its production releases CO₂ through limestone conversion and energy use, as explained by the IEA. That makes cement quantity an important part of a concrete carbon assessment.
GI’s additive achieved +67.7% compressive strength in third-party testing at the tested 5% supplied-additive dose by cement weight, not 5% pure graphene. This validated strength result supports investigating lower-cement mixes; it does not establish how much cement can be removed. Candidate mixes must meet the same required performance.
Conditional example: if 100 kg of Portland cement is actually avoided at the same required performance, gross avoided cement A1–A3 impact is 100 × 0.919 = 91.9 kg CO₂e. The 100 kg is an example assumption, not a reduction demonstrated by GI. The official US industry-average Portland cement EPD, revised July 2026, Table 4, gives 0.919 kg CO₂e/kg using 2019 production data, covering A1–A3, raw materials through manufacturing—not a current-year plant measurement or whole-life concrete footprint. CO₂e means carbon dioxide equivalent.
This is gross avoided cement-production impact, not measured GI net savings. Net savings require matched-performance mix validation and a consistent lifecycle comparison including additive manufacture, carrier, packaging, transport and all changed mix inputs. Unknown additive impacts are not zero. The strength result does not automatically establish cement reduction, longer service life or carbon capture.
Explore the concrete and embodied-carbon guide.
