Abstract: Mass preparation for the manufacture of technical concretes for shielding against radiation, of the type comprising a mixture of cement, aggregates and water; wherein the cement comprises aluminous cement and/or Portland type cement, while the aggregates comprise slag from metallurgy foundry castings. The method for obtaining said preparation includes the analysis and selection of suitable slag, its filtering and classification, plotting of the Bolomey curve depending on the intended use of the finished concrete, as well as the mixture of elements and their vibration.

Abstract: A method for making a coating for bases under the incidence of energy in the wavelength spectrum of 10?7<?<10?4 meters, including applying a metal oxide mixture on the base by prior dissolution in a solvent, with subsequent cooking and controlled cooling. The cooking may be conducted at temperatures between 900 and 1300 degrees centigrade. A coating may be obtained by said method.

Abstract: The invention relates to a material that can accumulate heat energy at high temperatures without losing its structural capacities. The material is fundamentally concrete formed by a mixture of cement, aggregates and water by means of high-frequency vibration, and comprises a proportion of aggregates which corresponds to between 70% and 85% of the total volume of the dry mixture, where the aggregates are classed as fine aggregates having a diameter of less than 8 mm and coarse aggregates having a diameter of between 8 mm and 25 mm, the granulometry of the dry mixture presenting deviations from the Bolomey curve of less than 5% in the end thirds of the granulometry and less than 10% in the middle third of the granulometry.

Abstract: System for storing thermal energy comprising, at least, a first container (1) storing a heat transfer fluid at a higher temperature and, at least, a second container (2) storing the heat transfer fluid at a lower temperature, linked by means of elements capable of using the energy due to the thermal gap therebetween; where the first container (1) and the second container (2) are made entirely or partly of a material having a great heat storage capability, the first container (1) being provided inside the second container (2) by means of a division (1a) which inside is in contact with the fluid at a higher temperature, and outside with the fluid at a lower temperature.

Abstract: Masses for obtaining poured concrete, concrete for bricks, concrete for tiles or mortar are known, in which Portland cement and Colemanite, water and additives to regulate the process are involved as aggregate. The invention achieves a remarkable increase in the capacity of neutron radiation protection of the material. For this, Portland cement is replaced by Alumina cement and a new component is inserted into the mass, specifically anhydrous calcium sulfate, the Colemanite staying as aggregate.

Abstract: Products for obtaining masses for pouring, bricks, tiles and any other format are achieved, in which participate aggregates and asphaltic binders, as well as also additives for regulating the process. The invention achieves a remarkable increase in the capacity of neutrons, X-rays and/or photons radiation protection, and for this the use of asphaltic hydrocarbon as binder has been envisaged, while as aggregate is used Colemanite in absorption and attenuation of neutrons, Barite in the case of X-rays and Magnetite, Hematite and/or Steel shot in the case of photons.

Abstract: Masses for obtaining poured concrete, concrete for bricks, concrete for tiles or mortar are known, in which Portland cement and Colemanite, water and additives to regulate the process are involved as aggregate. The invention achieves a remarkable increase in the capacity of neutron radiation protection of the material. For this, Portland cement is replaced by Alumina cement and a new component is inserted into the mass, specifically anhydrous calcium sulfate, the Colemanite staying as aggregate.

Abstract: The invention relates to a mass for manufacturing products with a high neutron radioprotection capacity which, like that of any conventional concrete, is structured based on cement or mixture thereof with calcium sulfate (anhydrite), aggregates, water and chemical additives modifying the characteristics of the concrete. According to the invention, said mass uses as an aggregate colemanite and variable parts of borax, with a very continuous grain size to achieve a perfect homogeneity in the mass, determining an optimal barrier effect against neutron radiations, which allows considerably decreasing the wall thickness, without adversely affecting the barrier effect. The mass is suitable for obtaining poured concrete, concrete for bricks, concrete for slabs and dry mortar, which can be used in building radioactive premises such as radiotherapy and brachytherapy bunkers, radiology walls, etc. This concrete has no structural capacity.

Abstract: The mass is structured on the basis of calcium aluminate cement, aggregates, water and chemical additives that modify the characteristics of the concrete. This mass uses magnetite, hematite or steel shot as an aggregate, with a highly continuous granulometry so as to achieve perfect consistency in the mass (Fuller's curve), accompanied by a high density, decisive factors for an optimum barrier effect against radiations. It can withstand high temperatures without there being any structural loss and it therefore maintains the barrier effect. The mass is suitable for producing poured concrete, concrete for bricks, and mortar, for use in the building of radioactive enclosures in which energies above 450 KeV, etc. are handled. Furthermore, prefabricated blocks of mixed mass, one of high density with great heat accumulation capacity and the other with the opposite effect, i.e.

Abstract: Specially designed to form a high capacity barrier for radioprotection in the X-ray range, a mass for producing mortar, bricks, blocks or tiles, involving the incorporation of cement, aggregate, water and chemical additives varying in accordance with the features that may be required for this mass, such as strength, setting time and others, the invention focuses its characteristics on the fact that, as an aggregate barite plays a part in it in a suitable proportion according to the increase in the general density of the mass to be obtained, a highly continuous grain size being envisaged for said barite as well as a system of differential vibrating, except in the case of the mortar, with a view to obtaining optimal consistency in the mass.

Abstract: The mass, as that of any conventional concrete, is based on cement, aggregates, water and chemical additives that modify the properties of the concrete. According to the invention, the mass uses magnetite as an aggregate, with a highly continuous grain size in order to obtain an optimum homogeneity of the mass as well as a high density which provide an optimum barrier effect against radiation, allowing to reduce substantially the thickness of the wall required without affecting the barrier effect. The mass is ideally suited for obtaining poured concrete, concrete for bricks, concrete for slabs and dry mortar used to build radioactive premises such as radiotherapy and brachytherapy bunkers, radiology walls, etc.