Ann: Talga Graphene Boosts Concrete Thermal Conductivity, page-19

Yeah but it's a cnt enriched additive not sure of the exact percentage included however in the additive.

From the scoping study at 76% yield of graphene and graphene nanoplatelets if they could be sold for $5000 a tonne the npv is actually higher already than forecast by the scoping study as most of the sales were forecast to be around $500 a tonne for amorphous graphite.

That is $5 a kg of graphene materials so you could put a whole kg of graphene materials in per gallon and still make a large profit and you certainly wouldn't need that high a percentage as an additive