Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
  • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
  • E04B1/92—Protection against other undesired influences or dangers
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
  • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
  • E04B2/04—Walls having neither cavities between, nor in, the solid elements
  • E04B2/06—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position
  • E04B2/08—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
  • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
  • E04B2/04—Walls having neither cavities between, nor in, the solid elements
  • E04B2/12—Walls having neither cavities between, nor in, the solid elements using elements having a general shape differing from that of a parallelepiped
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
  • E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
  • E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
• • 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
  • G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
  • G21F1/085—Heavy metals or alloys
• • 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
• • 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
  • G21F7/00—Shielded cells or rooms
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
  • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
  • E04B1/92—Protection against other undesired influences or dangers
  • E04B2001/925—Protection against harmful electro-magnetic or radio-active radiations, e.g. X-rays
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
  • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
  • E04B2002/0202—Details of connections
  • E04B2002/0204—Non-undercut connections, e.g. tongue and groove connections
  • E04B2002/021—Non-undercut connections, e.g. tongue and groove connections of triangular shape

Definitions

• Radioprotective construction block for the construction of a wall capable of forming a screen against ionizing radiation
• the present invention relates generally to the field of equipment for the protection against ionizing radiation.
• It relates more particularly to a radioprotective construction block which is adapted to the construction of a wall capable of forming a screen against ionizing radiation.
• Lead is an excellent shield against ionizing radiation (eg X-ray and gamma), thanks to its density, high atomic number and stability level.
• ionizing radiation eg X-ray and gamma
• This radioprotective material is also interesting for its ease of machining.
• this material can thus be in the form of building blocks or "bricks", for example chevron (s) or parallelepiped.
• Such building blocks have the advantage of offering a very flexible and versatile use, for example to very quickly build a wall capable of forming a screen against ionizing radiation emitted during the handling or storage of radioactive sources .
• Such a modular and removable wall is made by juxtaposing, by joining and / or superimposing, radioprotective building blocks.
• the present invention proposes a radioprotective construction block, for the construction of a wall capable of forming a screen against ionizing radiation.
• This building block includes:
• a core made of at least one radioprotective material
• a shell enclosing said core, comprising at least one piece of shell which is reported around said soul.
• Such a building block has the advantage of presenting a better respect for the environment and being able to be handled without any particular constraint.
• the shell can be removed from the core for replacement by a new "clean" shell; the "contaminated" hull can integrate a treatment process in place and at a low cost.
• Said at least one shell part is made of plastic material and / or metal material (for example steel);
• said at least one shell part is made of a non-radioprotective material
• said core is made of lead or lead alloy, or even steel
• said at least one shell part is held around said core by means of securing means, possibly removable securing means; preferably, this shell consists of at least two shell parts, and the securing means comprise interlocking means between said shell parts;
• said at least one shell part is made of a heat-shrinkable film
• the radioprotective building block consists of a brick, a slab, a lintel
• the building block consists of a parallelepiped brick, a chevron brick (s) or a cylindrical shell portion;
• the core has an outer surface, and said at least one shell member comprises an inner surface that conforms to at least a portion of said outer surface of the core.
• the invention also proposes a shell for a radioprotective construction block according to the invention, which shell, adapted to envelop the core, consists of at least one shell piece able to be held around said core by means of securing means (advantageously removable).
• FIG. 1 is a general perspective view of a wall constructed by the assembly of a plurality of radioprotector building blocks according to the invention
• FIG. 2 shows, in isolation and in perspective, a radioprotector building block according to the invention which is adapted to the construction of a wall according to Figure 1 (the core is shown schematically in broken lines);
• FIGS 3 and 4 show, respectively front view and top view, the radioprotector building block according to Figure 2 (the core is shown schematically in broken lines in Figure 4);
• FIG. 5 is a sectional view of the radioprotective building block of Figures 2 to 4, according to a V-V sectional plane of Figure 3, with a partial and enlarged view of the interlocking means formed between two shell parts.
• FIG. 1 represents a wall P (advantageously vertical) which is constructed by an assembly of a plurality of radioprotective building blocks 1 according to the invention.
• Such a wall P is modular and removable. It is advantageously performed by juxtaposing, by joining and / or superimposing, the radioprotective construction blocks 1.
• this wall P is intended to form a screen against ionizing radiation that is emitted by a radioactive source during its handling and / or storage.
• a radioprotective construction block 1, according to the invention, is described in detail below with reference to FIGS. 2 to 5.
• the radioprotector building block 1 (also referred to as “block” or “building block”) comprises:
• a core 2 made of at least one radioprotective material
• a shell 3 comprising at least one shell piece 4 which is attached around said core 2, which shell 3 envelops said core 2 and forms the outer surface of this radioprotective building block 1.
• the radioprotective construction block 1 here has an external form of the herringbone type.
• This radioprotective construction block 1 thus comprises a set of external faces 1 a to 1 e, namely:
• a convex front face 1b in the shape of a V e intended to extend vertically
• a concave rear face 1c in the shape of a Vee intended to extend vertically and complementary to said convex front face 1b, a convex upper face 1d, in the shape of a V e intended to extend horizontally, and
• Vee shape is advantageously meant a general dihedral shape which is formed of two sections connected by an edge.
• the radioprotective construction block 1 may have any other shape, for example a parallelepiped shape or a cylindrical shell portion shape (for example a cylindrical half-shell).
• the radioprotective construction block 1 may consist of a brick, a slab (advantageously for the floor), a lintel (advantageously to form the top of an opening in a wall).
• the core 2 is advantageously made of lead or lead alloy, advantageously forming a solid piece. Alternatively, this core 2 could also be made of steel.
• the core 2 has an outer surface 21 which extends, at least approximately, parallel to the outer faces 1a to 1 e of the radioprotective construction block 1.
• This external surface 21 thus has a shape which is a function of the arrangement of the external faces 1a to 1e of the radioprotective building block 1.
• this outer surface 21 has a profile of the chevron type which consists of the following faces:
• the core 2 further defines a longitudinal axis 2 ', horizontal, which extends parallel to the flat lateral faces 2a and to the concave upper 2d / lower concave face pair 2e.
• the shell 3 enveloping the core 2 has two opposite surfaces:
• This shell 3 is formed by at least one shell part 4.
• Said at least one shell part 4 is advantageously made of plastic material and / or metal material.
• said at least one shell piece 4 is optionally made of a non-radioprotective material.
• plastic materials it is advantageous to use rigid or semi-rigid plastic materials, namely for example polyvinyl chloride (PVC), polyethylene, ABS, polyamide.
• PVC polyvinyl chloride
• ABS polyethylene
• polyamide polyamide
• steel is advantageously meant.
• Said at least one shell part 4 comprises two opposite surfaces:
• an outer surface 42 which forms at least a portion of the outer faces 1a to 1e of the radioprotective construction block 1.
• the two surfaces 41, 42 of a shell part 4 here extend parallel, or at least approximately parallel, with respect to each other.
• These two surfaces 41, 42 define the thickness of the shell part 4. This thickness is for example between 0.1 and 3 mm.
• said at least one shell piece 4 is held around the core 2 by means of securing means 5.
• the shell 3 comprises two shell parts 4 which are complementary to each other, in this case here:
• first shell part 4a on the side of and covering the convex front face 2b of the core 2, and
• a second shell part 4b called “rear" on the side of and covering the concave rear face 2c of the core 2.
• the shell pieces 4 are shaped so as to cover the whole of the outer surface 21 of the core 2.
• each shell piece 4 matches a portion of the outer surface 21 of the core 2, and
• the outer surface 42 of this same shell part 4 forms part of the external faces 1 a to 1 e of the radioprotective construction block 1.
• each shell part 4 here has several walls: two flat, parallel side walls 45 covering part of the two flat lateral faces 2 a of the core 2,
• a front wall 46, dihedral, covering as the case may be, the convex front face 2b of the core 2 or the concave rear face 2c of the core 2,
• a concave dihedral lower wall 48 covering part of the concave lower face 2 of the core 2.
• the hull piece 4a "front” comprises a front wall 46 which is convex dihedral to cover the convex front face 2b of the core 2; and the "rear” shell piece 4b has a front wall 46 which is dihedral concave to cover the concave rear face 2c of the core 2.
• Each shell piece 4 is again delimited here by a free edge 49, corresponding to the edge of the side walls 45, the upper wall 47 and the bottom wall 48.
• the two free edges 49 are intended to extend here perpendicularly to the longitudinal axis 2 'of the core 2, to the flat lateral faces 2a of the core 2 and to the side walls 45 of the shell parts 4.
• each shell part 4 At the level of each shell part 4:
• each side wall 45 covers half of one of the two plane lateral faces 2a of the core 2,
• the upper wall 47 covers half of the convex upper face 2d of the core
• the lower wall 48 covers the half of the concave lower face 2e of the core 2.
• the securing means 5 assemble and hold the two shell pieces 4 around the core 2.
• Such securing means 5 are advantageously chosen from at least one of the following fastening means:
• mechanical securing means chosen for example from screwing means and / or riveting means, and
• the securing means 5 comprise interlocking means arranged at the free borders 49 above.
• the free edge 49 of one of the shell pieces 4 cooperates by interlocking with the free edge 49 of the other of the shell pieces 4.
• the free edge 49a of a shell part 4 (in this case the front shell part 4a) comprises a dihedral interior recess 49a 1 (shown in detail in Figure 5).
• internal disconnection means a recess formed at the inner surface 41 of the shell part 4.
• the free edge 49b of the other shell part 4 (in this case the rear shell part 4b) comprises an outer recess 49b1 dihedral (shown in detail in Figure 5) which is complementary to the inner recess 49a 1 above.
• exital disconnection means a recess formed at the outer surface 42 of the shell part 4.
• Each setback 49a1. 49b1 advantageously extends over half the thickness of the associated shell part 4.
• 49b1 still include complementary interlocking structures 51, 52, in this case a combination groove / rib.
• the interior indent 49a 1 has a groove 51 and the outer recess 49b1 has a dihedral 52 rib.
• the gluing means consist for example of a glue attached between the inner surface of the shell parts 4 and the outer surface 21 of the core 2; in a complementary or alternative manner, this glue can be deposited at the level of the associated free edges 49.
• This glue is for example chosen from plastic solvents, cyanoacrylates, epoxides, neoprenes, etc.
• the heat-sealing means consist, for example, of producing a thermal weld at the level of the associated free edges 49 to form a weld line.
• This heat sealing is for example achieved by means of a high frequency welding or heating blades.
• the securing means 5 consist of removable securing means (this is the case in particular of the interlocking means) so as to allow separation between the core 2 and said at least one shell part 4 .
• Said at least one shell part 4, dissociated from the core 2, can then integrate a waste treatment sector.
• said at least one shell part 4 consists of a heat-shrinkable film.
• Said at least one piece of shell 4 is held around the core 2 by coming to marry its outer surface 21.
• the manufacture of a radioprotective building block 1 according to the invention advantageously comprises the following steps:
• the step of supplying said at least one shell part 4 advantageously comprises a step of manufacturing these shell parts 4 by compression, thermoforming or even more preferably by injection molding. .
• the solidarization step consists, as the case may be, in at least one of the above-mentioned solidarization steps: gluing, interlocking, heat sealing.
• said at least one shell piece 4 is attached so that its inner surface 41 covers at least a portion of the core 2.
• This shell piece 4 is then subjected to a heat treatment so that its inner surface 41 comes to retract and marry the outer surface 21 of the core 2.
• a plurality of radioprotective building blocks 1 are assembled to form the modular and removable P wall.
• This wall P is advantageously made by juxtaposing, by joining and / or superimposing, the radioprotective construction blocks 1.
• radioprotective building blocks 1 with chevrons described in relation to FIGS. 2 to 5, their complementary faces fit into each other in pairs:
• the convex front face 2b of a block 1 engages in the concave rear face 2c of a juxtaposed block 1, and -
• the convex upper face 2d of a block 1 engages in the concave lower face 2e of at least block 1 overlying.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Physics & Mathematics (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• General Engineering & Computer Science (AREA)
• High Energy & Nuclear Physics (AREA)
• Electromagnetism (AREA)
• Metallurgy (AREA)
• Ceramic Engineering (AREA)
• Finishing Walls (AREA)
• Building Environments (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=62091986

Family Applications (1)

Country Status (5)

Families Citing this family (1)

Family Cites Families (3)

• 2017
  • 2017-12-19 FR FR1762546A patent/FR3075451B1/fr active Active
• 2018
  • 2018-12-14 ES ES18833944T patent/ES2962310T3/es active Active
  • 2018-12-14 US US16/956,389 patent/US20200362556A1/en not_active Abandoned
  • 2018-12-14 WO PCT/FR2018/053309 patent/WO2019122636A1/fr unknown
  • 2018-12-14 EP EP18833944.4A patent/EP3729467B1/de active Active

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