US 2018/0118620 A1Published application

Addition for producing thermally conductive mortars and structural concrete

OwnerAlfonso Javier MORANO RODRIGUEZ, Juan POUS DE LA FLORinventors

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Abstract

The invention relates to an addition for producing thermally conductive mortars and structural concrete, said addition being a specific powdery formulation in each case, which, when added as an addition to a conventional concrete or mortar, allows the production of a structural concrete or mortar with improved thermal characteristics (thermal conductivity λ). If the addition is added to a conventional concrete in a plant, a structural concrete with increased thermal conductivities is produced, which can adapt to the thermal requirements of the building, thereby being highly suitable for the heat activation of structures or the geothermal activation of foundations. The concrete containing the addition takes on special rheological characteristics which, inter alia, allows a self-compacting concrete to be produced. If the addition is added to a conventional mortar in a mixer, a mortar is produced with very high thermal conductivities which make it highly suitable for geothermal probes.

Claims3

Dependent claims

An additive for thermally conductive structural concretes and conductive mortars, characterized in that it contains between three and six components depending on its application, selected from the following components:

Fine aggregate (calcareous or siliceous) with a grain size of less than 4 mm, in a proportion comprised between 0% and 95% of total weight.
Fine aggregates (calcareous or siliceous) with a grain size of less than 0.064 mm, in a proportion comprised between 0% and 95% of total weight.
Polycarboxylate ether superplasticizer type powder additive or derivatives thereof in a proportion comprised between 0% and 15% of total weight.
Cellulose ether or biopolymer type viscosity modulator or derivatives thereof in a proportion comprised between 0% and 10% of total weight.
Natural or synthetic graphite with high thermal conductivity in a proportion comprised between 0% to 45% of total weight.
Graphene and/or carbon nanotubes (nanomaterials) to obtain the high thermal conductivity characteristics in a proportion comprised between 0% to 20% of total weight.
A pozzolanic material such as silica fume, pozzolana or fly ash in a proportion comprised between 0% to 95% of total weight.

4 more elements

Dependencies are inferred from the claim text.