Abstract: The present invention falls within the field of building materials, particularly in the production of cement. It is specifically referred to the production of a cement which is obtained from a low-carbon clinker. The present invention provides a development in cement production with respect to the known cements, thus obtaining a cement with low greenhouse gases emissions, reducing the specific heat consumption and increasing chemical resistance, while maintaining all its functional properties.

Abstract: The present invention relates to a novel liquid-liquid extraction process of a bio-oil obtained by an improved thermochemical process. This extraction process gives rise to two distinct phases: an organic phase, with bio-oil of energetic added value, and an aqueous phase, where the following can be obtained by chemical compounds with added value: lactic acid, formic acid, hydroxymethylfurfural, furfural, levulinic acid, monosaccharides, disaccharides and compounds with antioxidant properties, among others.

Abstract: The present invention relates to a white or colored cementitious mixture for the manufacture of micro-concrete or normal concrete, mortar or pastes with thermochromatic properties, i.e., changing its color depending on the temperature at which the material is exposed. This color change is reversible after some time of exposure to another level of temperature. This cementitious mixture comprises the following components, in percentage in weight of the components relative to the total weight of the composition: a) 35-80% of white or gray Portland cement; b) 0.1-30% of finely ground limestone filler; c) 0.01-3% of powdered super-plasticizer; d) 0.01-3% of modified polyvinyl resins; e) 0.01-5% of dispersant of vinyl acetate and ethylene copolymers; f) 0.3-15% of encapsulated photochromic copolymers; and also one or more components selected from: g) 1-10% of binding regulator; h) 0.1-4% of zinc stearate; i) 1-20% of metakaolins; j) 5-60% of artificial pozzolans; k) 0.1-15% of inorganic pigments.

Abstract: The present invention relates to a system for active management of energy in concrete walls and/or floors, which essentially comprises: printed heating systems which are integrated in concrete parts during the concrete casting process; heating systems which are printed on the surface of concrete parts or cementitious coatings; an electronic system for monitoring and control the environment and the heating circuits, which is integrated in the concrete in order to maintain the comfort temperature; high reflective and phase-change materials to maximize the functionality of the heating systems; concrete wall structure to maximize the utilization of the heat generated by the integrated heating system.

Abstract: The present invention relates to the field of construction, involving knowledge of building materials and sensors technology. The invention consists of a cementitious material structure with sensors, which includes plurality of sensing elements (1) integrated on at least one substrate (2), and wherein the set of the plurality of sensing elements (1) and the at least one substrate (2) is involved in cementitious material. The invention thus enables a wide variety of ways to interact with construction structures, while allowing durability and robustness of these structures and their sensing elements (1). The present invention also comprises a manufacturing method of a cementitious material structure with sensors, which includes the integration of sensing elements (1) on at least one substrate (2), its insertion into a formwork and filling with cementitious material.

Abstract: Method for producing a low-carbon clinker with low energy consumption comprising the following stages: pre-calcination of the limestone present in the raw material, along the pre-calciner and in the cyclone tower; start of the clinkering process with the raw material inlet after pre-calcination, at a temperature higher than 1400° C. and with a C3S content above 60%; cooling the material, and finally introduction of 5 to 30% of silico-aluminous materials relative to the mass of material which is here processed in the cooling stage, at the cooler head.

Abstract: The present invention relates to a cementitious coating with hydrochromatic properties for micro-concrete or normal concrete, mortar, or other construction materials based on cement and ceramics. This cementitious coating in acrylic solution changes its opacity depending on the presence of water and moisture. This color change is reversible after some drying time leaving invisible the markings already existing on the substrate. This cementitious coating comprises the following components, in percentage in weight of the components relative to the total weight of the composition: a) 0.5-30% of hydrochromatic acrylic copolymer emulsion; b) 5-30% of white or gray Portland cement; c) 0.1-30% of finely ground limestone filler; d) 0.01-2% of powdered super-plasticizer; e) 0.01-3% of modified polyvinyl resins; f) 0.01-5% of dispersant of vinyl acetate and ethylene copolymers; g) 15-70% of aqueous acrylic emulsion; and optionally h) 0.1-15% of inorganic pigments.

Abstract: A white or colored cementitious mixture for the manufacture of micro-concrete or normal concrete, mortar or interactive pastes with photoluminescent properties, which respond to an incident luminous stimulus when exposed in a dark environment, decaying after several minutes. The cementitious mixture comprises the following components, in percentage in weight of the components relative to the total weight of the composition: a) 35-80% of white or gray Portland cement; b) 0.1-30% of finely ground limestone filler; c) 0.01-3% of powdered super-plasticizer; d) 0.01-3% of modified polyvinyl resins; e) 0.01-5% of dispersant of vinyl acetate and ethylene copolymers; f) 0.3-20% of photoluminescent pigment based on strontium aluminate, or other, of various colors; and also one or more components selected from: g) 1-10% of binding regulator; h) 0.1-4% of zinc stearate; i) 1-20% of metakaolins; j) 5-60% of artificial pozzolans; k) 0.1-15% of inorganic pigments.

Abstract: The present invention relates to a white or colored cementitious mixture for the manufacture of micro-concrete or normal concrete, mortar or pastes with thermochromatic properties, i.e., changing its color depending on the temperature at which the material is exposed. This color change is reversible after some time of exposure to another level of temperature. This cementitious mixture comprises the following components, in percentage in weight of the components relative to the total weight of the composition: a) 35-80% of white or gray Portland cement; b) 0.1-30% of finely ground limestone filler; c) 0.01-3% of powdered super-plasticizer; d) 0.01-3% of modified polyvinyl resins; e) 0.01-5% of dispersant of vinyl acetate and ethylene copolymers; f) 0.3-15% of encapsulated photochromic copolymers; and also one or more components selected from: g) 1-10% of binding regulator; h) 0.1-4% of zinc stearate; i) 1-20% of metakaolins; j) 5-60% of artificial pozzolans; k) 0.1-15% of inorganic pigments.

Abstract: The present invention relates to a cementitious coating with hydrochromatic properties for micro-concrete or normal concrete, mortar, or other construction materials based on cement and ceramics. This cementitious coating in acrylic solution changes its opacity depending on the presence of water and moisture. This color change is reversible after some drying time leaving invisible the markings already existing on the substrate. This cementitious coating comprises the following components, in percentage in weight of the components relative to the total weight of the composition: a) 0.5-30% of hydrochromatic acrylic copolymer emulsion; b) 5-30% of white or gray Portland cement; c) 0.1-30% of finely ground limestone filler; d) 0.01-2% of powdered super-plasticizer; e) 0.01-3% of modified polyvinyl resins; f) 0.01-5% of dispersant of vinyl acetate and ethylene copolymers; g) 15-70% of aqueous acrylic emulsion; and optionally h) 0.1-15% of inorganic pigments.

Abstract: A composite panel is made from wood and cementitious binders, with flat surfaces and several possible colors. The panel comprises 35 to 85% of grey or white Portland cement; 10 to 30% of debarked resinous wood particles; 5 to 20% of semi-hydrated calcium sulphate; 0 to 10% of a surface accelerator; 0 to 10% of aluminum sulphate solution; 0 to 30% of calcium carbonate; and 0 to 15% of pigments. The process of preparation for the existing VIROC panel is adjusted to the new material. This panel, in addition to being very resistant and showing high performances in terms of resistance to impact, humidity, temperature variation, noise and fungi, as well as other microorganisms, also complies with all the requirements of the associated product standard.

Abstract: A method for application of optical fibres in cold moldable materials, produced using binders such as plaster. First, the optical fibres are mounted to distribute the fibre according to a preset network mesh aimed at obtaining the desired pixelization effect in specific targeted areas by affixing the terminals of the optical fibres to a plasticized film that coats the formwork's surface. The concreting of the piece is carried out after the required operations of framework assembly and pre-stress, if applicable, eventual installation of “Tremi” tubes for the concrete to be discharged during concreting, insertion of spacers and accessories required for concreting of the piece. The formwork is removed after the hardening period and the terminals of the beams connected to an electronic light system; the terminals are arranged in order to obtain the desired light transmission to each one of the cables forming one pixelized unit.

Abstract: A composite panel is made from wood and cementitious binders, with flat surfaces and several possible colours. The panel comprises 35 to 85% of grey or white Portland cement; 10 to 30% of debarked resinous wood particles; 5 to 20% of semi-hydrated calcium sulphate; 0 to 10% of a surface accelerator; 0 to 10% of aluminium sulphate solution; 0 to 30% of calcium carbonate; and 0 to 15% of pigments. The process of preparation for the existing VIROC panel is adjusted to the new material. This panel, in addition to being very resistant and showing high performances in terms of resistance to impact, humidity, temperature variation, noise and fungi, as well as other microorganisms, also complies with all the requirements of the associated product standard.