WO2012164108A1 - Procédé de fabrication d'un carreau de béton baryté à joint à recouvrement pour blindage de parements verticaux et horizontaux de salles de radiologie sanitaire et industrielle et carreau ainsi obtenu - Google Patents

Procédé de fabrication d'un carreau de béton baryté à joint à recouvrement pour blindage de parements verticaux et horizontaux de salles de radiologie sanitaire et industrielle et carreau ainsi obtenu Download PDF

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Publication number
WO2012164108A1
WO2012164108A1 PCT/ES2011/070393 ES2011070393W WO2012164108A1 WO 2012164108 A1 WO2012164108 A1 WO 2012164108A1 ES 2011070393 W ES2011070393 W ES 2011070393W WO 2012164108 A1 WO2012164108 A1 WO 2012164108A1
Authority
WO
WIPO (PCT)
Prior art keywords
tile
thickness
slab
cut
flaps
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/ES2011/070393
Other languages
English (en)
Spanish (es)
Inventor
Mª Begoña PEREIRA CAÑÁS
Javier HERNÁNDEZ PASÍN
Miguel POMBAR CAMEÁN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Construcciones Tecnicas de Radio Terapia SL
Original Assignee
Construcciones Tecnicas de Radio Terapia SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Construcciones Tecnicas de Radio Terapia SL filed Critical Construcciones Tecnicas de Radio Terapia SL
Priority to PCT/ES2011/070393 priority Critical patent/WO2012164108A1/fr
Publication of WO2012164108A1 publication Critical patent/WO2012164108A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/04—Concretes; Other hydraulic hardening materials
    • G21F1/042—Concretes combined with other materials dispersed in the carrier
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
    • G21F3/04—Bricks; Shields made up therefrom

Definitions

  • the present invention refers to a prefabricated tile of beamed concrete with overlapping joint, that is, which includes flaps on its lateral faces, to be used in the shielding of vertical walls and Horizontal of sanitary and industrial radiology rooms.
  • the device provides complete radiological shielding for conventional radiology enclosures that require an equivalence of up to 3 mm of lead for shielding.
  • the tile of the present invention allows to shield the conventional radiology enclosure without using toxic elements (lead).
  • the shape and size of the tile of the invention allow its placement on a conventional partition wall support (brick, cardboard, plaster, etc.) by the usual techniques used for tiling, using as adhesive a commercial glue cement or placing it as a terrazzo under the compression layer of a floor.
  • the Spanish patent ES 2 322 532 discloses a heavy mass of concrete for the execution of protective barriers in the field of X-rays. This Spanish patent contemplates the application of the heavy mass of the invention for the manufacture of tiles. These tiles did not include special joints and were designed to be placed directly butt and manufactured with a system by ordinary pressing that currently has been tested in the laboratory that does not serve to guarantee absorption.
  • the tile of the present invention is made of barite concrete and is specially designed to be used as a shield for vertical and horizontal walls of sanitary and industrial radiology rooms. Specifically, the present tile is designed to shield conventional radiology rooms in which until now a lead shield of between 0.5 mm and 3 mm had been used.
  • This tile allows replacing up to 3 mm of lead with a tile thickness of 2 cm so it can be used in radiology rooms where until now it was not possible to replace lead shielding due to space limitations (a very thick thickness was necessary high brick to get the necessary armor).
  • the tile includes flaps on its side faces to provide a homogeneous shield. Some of the side faces of the tile, specifically half of them, will include a flap that is at the same level as the top face of the tile. The remaining side faces of the tile will include a flap that is at the same level than the underside of the tile. The thickness of the flaps is half the thickness of the tile.
  • the flaps of the tile will have dimensions that can be chosen by the user but must be at least those necessary to guarantee a complete shield. It is about achieving maximum shielding minimizing the risk of breakage during handling or transport.
  • the shape of the tile is preferably square to facilitate its homogeneous placement on the partition wall support on which it is applied.
  • other geometric shapes are also valid, such as a hexagonal shape, an octagonal shape, etc.
  • the basic condition for maintaining the homogeneous shielding will be that the tiles have flaps on all their lateral faces, that is, on their four lateral faces in case they have a square shape, on their six lateral faces in case they are hexagonal, its eight lateral faces in case they have an octagonal shape, etc.
  • This tile is formed by a single layer of material that is distributed evenly by means of vibration and to which water is extracted during the pressing process of the material. This process is indispensable for the industrial production of the product since the tests carried out by simple pressing do not allow obtaining an adequate radiation absorption capacity.
  • tile manufacturing process is also the subject of the present invention.
  • This manufacturing process comprises the following stages:
  • the product obtained is dried and cured, it has a tile, still without overlaps on its lateral faces.
  • two methods are proposed. The first involves cutting the edges of the tiles to obtain the flaps by applying an automated cutting process.
  • the second method includes the bonding of two tiles, which have a thickness of half the final thickness that the tile is intended to give, with a displacement between them corresponding to the size of the flaps.
  • This second method allows even placing a first tile, which has a thickness of half the thickness of the final tile, on the partition wall support to be shielded and then sticking a second tile, also of thickness, the half the thickness of the final tile, on the first tile, but moving it with respect to it a distance corresponding to the measures of the overlap.
  • Figure 1 - Shows a perspective view of a tile with an overlapping joint made by cutting
  • Figure 2 - Shows a first tile and a second tile that are glued by adhesive to obtain the final tile.
  • Figure 3 Shows a perspective view of a tile obtained as shown in Figure 2.
  • Figure 4 Shows a cross section of the tile in which the overlaps are seen.
  • Figure 5 Shows a view of a set of assembled tiles for the realization of the shield.
  • the tile (1) has a square shape with flaps (2) on its four lateral faces. Depending on the machinery used to manufacture the tile, its measurements will vary between 20x20 cm and 40x40 cm. The flaps (2) of the side faces are 2 cm.
  • the density of the tile (1) in this preferred embodiment exceeds 3.3 gr / dm3 and its unit weight therefore depends on the manufacturing dimension.
  • the proposed manufacturing process starts from a homogeneous mixture of barite concrete. This mixture is poured into a hydraulic press with simultaneous vibration, compression and water extraction. Thus, the process comprises a first stage of vibration of a mixture of barite concrete and a second stage of pressing with simultaneous dehydration. In this way, a barite concrete tile with the desired thickness and a density greater than 3.3 gr / dm3 is obtained.
  • the tile obtained must undergo a process of drying and curing the concrete not less than 3 days to obtain part of its final strength.
  • the first method comprises trimming the sides of the tile in two directions. This method is used when the tile (1) that is manufactured has already the desired thickness.
  • the thickness (5) of the tile is 2 cm. It is necessary to make a first cut in the vertical direction at a distance from the edge of the tile (1) equal to the size of the flap (2) and this cut will be made in half of the side faces of the tile from the upper surface ( 3) of the tile with a measure equal to half the thickness (5) of the tile and on the other half of the tile faces from the bottom surface (4) of the tile with a measure equal to half the thickness (5) of the tile, and a second cut is made in the horizontal direction that will be made on all the lateral faces of the tile (1) at the height of half the thickness (5) of the tile so that the joint of the First cut and the second cut on each of the side faces results in remaining material that is detached leaving only the flap (2) on each side of the tile (1).
  • the second method is used when tiles of thickness of half the desired thickness have been manufactured for the final tile.
  • This second method comprises the bonding with adhesive (9) of two tiles, a first tile (6) and a second tile (7), with the necessary displacement between them to guarantee the measurement of the flap (2) of the sides of the final tile.
  • the first tile (6) and the second tile (7) have a thickness (8) that is half the thickness (5) that you want to have in the final tile (1).
  • the thickness (8) of the first tile (6) and the second tile (7) is 1 cm.
  • Figure 3 shows a tile (1) obtained by gluing a first tile (6) and a second tile (7).
  • tile is also an object of the present invention.
  • it has been fixed to a partition support by means of glue cement (10) as shown in Figure 5.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Finishing Walls (AREA)

Abstract

L'invention concerne un procédé d'obtention d'un carreau préfabriqué de béton baryté présentant des recouvrements sur ses faces latérales, procédé dans lequel on part d'un mélange homogène de béton baryté, lequel est soumis à une vibration dans une presse hydraulique suivi d'un pressage ultérieur avec déshydratation simultanée. On laisse sécher et durcir le mélange ainsi obtenu pendant au moins trois jours. Le carreau de l'invention présente de préférence une forme carrée de dimensions comprises entre 20x20 cm et 40x40 cm avec des joints à recouvrement de 2 cm qui garantissent l'homogénéité du blindage. Avec un carreau d'épaisseur de 2 cm, on peut remplacer un blindage pouvant aller jusqu'à 3 mm de plomb. Le carreau est utilisé pour être placé sur un support de cloisonnage ou comme carrelage classique ou sous la couche de compression d'un plancher comme un granito.
PCT/ES2011/070393 2011-05-31 2011-05-31 Procédé de fabrication d'un carreau de béton baryté à joint à recouvrement pour blindage de parements verticaux et horizontaux de salles de radiologie sanitaire et industrielle et carreau ainsi obtenu Ceased WO2012164108A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2011/070393 WO2012164108A1 (fr) 2011-05-31 2011-05-31 Procédé de fabrication d'un carreau de béton baryté à joint à recouvrement pour blindage de parements verticaux et horizontaux de salles de radiologie sanitaire et industrielle et carreau ainsi obtenu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2011/070393 WO2012164108A1 (fr) 2011-05-31 2011-05-31 Procédé de fabrication d'un carreau de béton baryté à joint à recouvrement pour blindage de parements verticaux et horizontaux de salles de radiologie sanitaire et industrielle et carreau ainsi obtenu

Publications (1)

Publication Number Publication Date
WO2012164108A1 true WO2012164108A1 (fr) 2012-12-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2011/070393 Ceased WO2012164108A1 (fr) 2011-05-31 2011-05-31 Procédé de fabrication d'un carreau de béton baryté à joint à recouvrement pour blindage de parements verticaux et horizontaux de salles de radiologie sanitaire et industrielle et carreau ainsi obtenu

Country Status (1)

Country Link
WO (1) WO2012164108A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1318715A (fr) * 1962-01-09 1963-02-22 Commissariat Energie Atomique Mortier lourd
GB1034356A (en) * 1962-04-03 1966-06-29 Commissariat Energie Atomique Method for the the preparation of materials constituting a barrier against radiations, especially radiations of a nuclear origin, and materials obtained in accordance with the said process
EP2077564A1 (fr) * 2007-12-21 2009-07-08 Construcciones Tecnicas de Radioterapia, S.L. Masse lourde pour l'exécution de barrières de radioprotection dans un environnement de rayons X

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1318715A (fr) * 1962-01-09 1963-02-22 Commissariat Energie Atomique Mortier lourd
GB1034356A (en) * 1962-04-03 1966-06-29 Commissariat Energie Atomique Method for the the preparation of materials constituting a barrier against radiations, especially radiations of a nuclear origin, and materials obtained in accordance with the said process
EP2077564A1 (fr) * 2007-12-21 2009-07-08 Construcciones Tecnicas de Radioterapia, S.L. Masse lourde pour l'exécution de barrières de radioprotection dans un environnement de rayons X

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