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US 11,820,712 B2Granted
Electrically conductive binder for manufacturing heatable building parts
AssigneeHConnect 2 GmbH
InventorsMarcello Antonio Molfetta, Marco Goisis
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Abstract
Electrically conductive binder comprising a cement, a sterically stabilizing superplasticizer, a rheology modifier, graphite particles with carbon content higher than 60%, and graphene; cementitious mixture comprising the binder, and heatable building elements, preferably underfloor heating layers and/or heating panels and/or heating layers close to a wall, as well as floors with underfloor heating systems comprising a layer from the binder.
Claims35
An electrically conductive binder comprising a cement, graphite particles with a carbon content higher than 60%, and graphene,
- wherein the amount of cement ranges from 40 to 80% by mass of the binder,
- the amount of graphite particles ranges from 19.5 to 60% by mass of the binder,
- the amount of graphene, calculated as dry substance, ranges from 0.005 to 0.5% by mass of the binder and
- the binder contains a sterically stabilizing superplasticizer in an amount, calculated as dry substance, from 0.2 to 2.0% by mass relative to the mass of the cement, and
- a rheology modifier in an amount, calculated as dry substance, from 0.01 to 0.9% by mass relative to the mass of the cement.
2 more elements
A cementitious mixture comprising
- an electrically conductive binder comprising
- a cement in an amount from 40 to 80% by mass of the binder,
- graphite particles with a carbon content higher than 60% in an amount from 19.5 to 60% by mass of the binder,
- graphene in an amount, calculated as dry substance, from 0.005 to 0.5% by mass of the binder,
- a sterically stabilizing superplasticizer in an amount, calculated as dry substance, from 0.2 to 2.0% by mass relative to the mass of the cement, and
- a rheology modifier in an amount, calculated as dry substance, from 0.01 to 0.9% by mass relative to the mass of the cement,
- and water, wherein the water/cement ratio ranges from 0.8 to 1.5 and/or the water/solids ratio ranges from 0.48 to 0.65.
4 more elements
Dependencies are inferred from the claim text.