EP1598479B1 - Joint structure for plates made out of mouldable material - Google Patents

Joint structure for plates made out of mouldable material Download PDF

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Publication number
EP1598479B1
EP1598479B1 EP05447116A EP05447116A EP1598479B1 EP 1598479 B1 EP1598479 B1 EP 1598479B1 EP 05447116 A EP05447116 A EP 05447116A EP 05447116 A EP05447116 A EP 05447116A EP 1598479 B1 EP1598479 B1 EP 1598479B1
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EP
European Patent Office
Prior art keywords
male
compressible
female
assembly
walls
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.)
Not-in-force
Application number
EP05447116A
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German (de)
French (fr)
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EP1598479A1 (en
Inventor
Armand Cantarella
Etienne Alexandre
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.)
Twintec International SA
Original Assignee
Twintec International SA
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
Priority claimed from EP04447125A external-priority patent/EP1598478A1/en
Application filed by Twintec International SA filed Critical Twintec International SA
Priority to EP05447116A priority Critical patent/EP1598479B1/en
Publication of EP1598479A1 publication Critical patent/EP1598479A1/en
Application granted granted Critical
Publication of EP1598479B1 publication Critical patent/EP1598479B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/12—Packing of metal and plastic or elastic materials
    • E01C11/126—Joints with only metal and prefabricated packing or filling

Definitions

  • the present invention relates to a structural joint for slabs or slabs of moldable material, in particular concrete. It also relates to a coating comprising at least two molded slabs interconnected by such a seal, as well as a method of producing such a structure seal.
  • Such seals are known having a double profile in the shape of omega.
  • Other structural joints for slabs or paving are also known from EP 953682.
  • the space formed between two adjacent sections increases, so that the male part may possibly float in the female part, which may cause vibrations or shocks during the passage of a carriage, for example of an elevator.
  • US-A-3,276,334 discloses a seal for insertion into a space or recess located between two slabs.
  • the seal is made of elastomeric material
  • the seal is pressed in the compressed state in the empty space between two slabs, and once placed, the seal exerts a force on the walls of the slabs facing one another.
  • the end of the seal has a guide section facilitating its insertion into the space between slabs.
  • This guide profile is attached to the elastomeric seal by a staple.
  • Such a seal is introduced into the space between slabs after hardening and removal of the slabs. The introduction of such a joint is a long and laborious work.
  • US-A-2,130,859 discloses an expansion joint for road.
  • the seal comprises a first section secured to a first slab, a second section secured to a second slab, and an elastomeric body extending between the sections.
  • Each section has a female part and a male part, the male part of a profile being intended to be engaged in the female part of the other section. Between the bottom of the female part and the extreme edge of the male part of each section extends a compressible body.
  • the present invention relates to a seal for solving problems generating noise, vibration or shock due to slight movement between slabs, and the formation of breaks.
  • the invention relates to a structural joint for slabs of moldable material or slab of moldable material, said seal comprising at least two elements in the form of profiles, said elements being profiles and each of them being intended to be secured to one of the edges of two slabs or adjacent molded pavements.
  • Said profiles each comprise an anchoring means for anchoring each section to a slab, and respectively either a male portion and at least one female portion, or two female portions adapted to each receive a male portion of an intermediate member.
  • Said profiles are made at least partially of metal, in particular steel.
  • the male part extends at least partially into the female part.
  • Said seal further comprises at least one deformable and compressible solid assembly located between a male part and a female part.
  • the male portion has an upper wall, a lower wall and an extreme edge
  • the female portion has an upper wall, a lower wall, and a bottom.
  • the upper wall, the lower wall and the extreme edge of the male part are respectively adjacent to the upper wall, the bottom wall and the bottom of the female part when the male part is engaged in said female part.
  • the compressible assembly is formed of a plurality of distinct portions or a body having a plurality of portions.
  • the compressible and deformable assembly is intended to be compressed between said profiles and has at least two portions or parts.
  • the first portion or portion is adapted to extend between the upper walls of the male and female parts, said first portion or portion having a first face bonded by means of a layer of adhesive and / or glue points on one of the walls upper portions of the male and female parts, and a second face opposite to the first bonded face, said second face being in contact with the other of said upper walls so as to allow relative movement between said second face and the other of said upper walls.
  • the second portion or part is in turn adapted to extend between the lower walls of the male and female parts, said second portion or portion having a first side bonded by means of a layer of adhesive and / or points of glue on one of the lower walls of the male and female parts, and a second face opposite to the first bonded face, said second face being in contact with the other of said lower walls so as to allow relative movement between said second face and the other of said lower walls.
  • the adhesive layer and / or said glue points are / are adapted (e) (s) to oppose a detachment of the first face of the first portion or portion and the second portion or portion during a displacement relative of at least 0.5 cm between the male part and the female part during the removal of slabs or molded pavements.
  • the solid and compressible assembly is advantageously maintained in a compressed state during the molding of the adjacent slabs and for a period sufficient to ensure a minimum grip (for example concrete).
  • the solid and compressible assembly remains at least partially in the compressed state after the setting of the moldable material (for example concrete) and therefore after its removal.
  • the adhesive layer and / or the adhesive points are associated with a frame or a fiber network.
  • the fibers are fibers having good tensile strength, preferably fibers selected from the group consisting of fiberglass, carbon fiber, aramid fiber, mineral fiber, and mixtures thereof.
  • the first and second parts or portions of the deformable and compressible assembly are glued to the male part, advantageously with the interposition of a frame or a network of fibers.
  • the compressible assembly has a third portion extending between the first portion and the second portion, said third portion being intended to extend between the extreme edge of the male part and the bottom of the part. female.
  • This third portion is advantageously also glued.
  • the assembly or compressible body has a variable thickness in the uncompressed state, the thickness of the portion of the compressible body intended to extend between the extreme edge of the male part and the bottom of the female part being more important than that of the parts of the compressible body intended to be located between the upper or lower walls of the male and female parts.
  • the assembly or compressible and deformable body is a foam body capable of undergoing a compression ratio of at least 2, advantageously at least 3, preferably at least 5, without crack formation.
  • the compressible body In the uncompressed state, has an average thickness of at least 0.5 cm, in particular at least 1 cm.
  • the assembly or compressible body is made of closed-cell foam, said cells advantageously having a mean diameter (in number) of less than 2 mm, preferably less than 1 mm.
  • the assembly or compressible body is made of open-cell foam, said cells advantageously having an average diameter of less than 2 mm, preferably less than 1 mm.
  • the assembly or compressible body is made of foam partially with open cells and for example with closed cells.
  • the assembly or compressible body may also be made of several different layers, for example one or more open cell compressible layers, and one or more closed cell compressible layers, the layer or layers may have different compression characteristics.
  • the assembly or compressible body is made in several layers, for example in two or three layers, the layers may be attached to each other or may be free to slide relative to each other.
  • the compressible assembly has or is associated on its non-bonded side, anti-adherent means adapted to touch a wall of the male and / or female part.
  • the compressible assembly is made of an elastomeric material, having a thickness of less than 3 mm in the uncompressed state, in particular less than 2 mm.
  • the assembly or compressible body is associated with a plastically deformable element, for example a profile made of hard plastic thin.
  • a plastically deformable element for example a profile made of hard plastic thin.
  • This profile advantageously has a width greater than the width of the bottom of the female part.
  • a deformation of the deformable element is advantageously carried out before and / or during the introduction of the male part into the female part, the deformable element once deformed being able to act as a means (advantageously additional) of holding the body in place compressible between the male part and the female part.
  • the assembly or the compressible body has a variable thickness in the uncompressed state, the thickness of the portion of the compressible body intended to extend between the extreme edge of the male part and the bottom of the female part being larger than that of the parts or portions of the body or the compressible assembly intended to be located between the upper or lower walls of the male and female parts.
  • Such a body or compressible assembly is then also held in position due to the greater thickness of the portion of the compressible body extending between the extreme edge of the male part and the bottom of the female part.
  • the assembly or compressible body is advantageously made of closed cell foam, low rubber, particularly synthetic rubber, for example neoprene.
  • the assembly or compressible body will be advantageously free or substantially free of lubricants or plasticizers.
  • the assembly or compressible body will preferably have UV resistance properties, for example by using one or more additives.
  • the compressible body or assembly preferably has resistance to water absorption.
  • the compressible body immersed in water absorbs less than 5% by weight of water in 24 hours.
  • the amount of water absorbed is determined by making the difference between the body weight or compressible set plunged for 24 hours in water at 20 ° C and the body weight or dry compressible assembly (absorbed moisture content of less than 0.1%) prior to immersion in water.
  • the compressible body or assembly absorbs less than 3% by weight, especially less than 2% by weight, such as less than 1% by weight of water after being immersed in water for 24 hours.
  • the compressible body or assembly advantageously has a compressive strength of 20 to 100 kPa (preferably 30 to 70 KPa or 300 g / cm 2 to 700 g / cm 2 , in particular approximately 500 KPa or 500 g / cm 2 ). with a reduction in volume or a crush of 20 to 40%, especially 25%.
  • the body or compressible assembly preferably has a density of between 75 and 500kg / m 3, particularly between 100 and 300 kg / m 3.
  • the body or compressible assembly is made of an elastomeric material.
  • the upper and lower walls of the male and female parts are respectively spaced from each other by a distance of less than 0.5 cm, preferably less than 3 mm, preferably about 0.2 mm to about 1mm.
  • the profiles each have a substantially vertical wall, while the body or compressible deformable assembly has portions extending at least partially between the substantially vertical walls of the profiles.
  • the profiles have along their upper edge a flat, the flat of a first section being intended to extend at least partially above a portion of the flat of the second profile.
  • the flat of the second profile has a recess in which extends the flat of the first section, while at least a portion of the upper face of the flat of the first profile and the upper face of the flat of the second section extend. substantially in the same plane.
  • the invention also relates to a coating comprising at least two slabs interconnected by at least one seal according to the invention as described above.
  • a coating comprising at least two slabs interconnected by at least one seal according to the invention as described above.
  • the space adjacent to the upper edge of the lining situated between two sections facing each other is filled with a flexible joint, in which a bearing piece is advantageously inserted.
  • the subject of the invention is also a process for producing a joint between two adjacent slabs, said seal being a seal according to the invention, in which the compressible solid assembly is maintained in a compressed state during the molding of the slabs. adjacent areas and for a period of time sufficient to ensure minimum slab hold. Said assembly is advantageously still compressed after setting the moldable material or after removal.
  • the seal 1 shown in Figure 1 comprises a section 2 with a male portion 2A and a profile 3 with a female portion 3A adapted to receive the male portion 2A.
  • the profile 2 is made for example by extrusion or folding for example from a steel sheet, for example galvanized steel, corrosion-resistant steel, steel covered with a film or protective layer, stainless steel etc.
  • the upper end of the profile 2 has a plate 2B intended to serve as a protection of the edge of the slab 5. In other embodiments, the upper end of the profile 2 may not be provided with a protective plate 2B.
  • the male portion 2A forms a finger of substantially constant thickness E and length L.
  • the profile 2 comprises a vertical wall 2C located above the male portion 2A and a vertical wall 2D located below the male portion 2A.
  • An anchoring means 8 is attached to the section 2 to ensure good anchoring of the section 2 to the concrete of the slab 5.
  • the profile 3 made for example by extrusion or folding for example from a steel sheet, preferably stainless steel has at its upper end a plate 3B intended to protect the edge of the slab 6.
  • the profile 3 may not include a protective plate 3B.
  • the female portion 3A forms a hollow whose width substantially corresponds to the thickness or width E of the male portion 2A (for example from 1 to 5 mm more than the thickness or width E) and whose depth P substantially corresponds to the length L of the male portion 2A (for example 2 to 10 mm longer than the length L), made of aluminum or preferably steel.
  • the section 3 comprises a vertical wall 3C located above the female portion 3A and a vertical 3D wall located below the female portion 3A.
  • An anchoring means 9 is attached to the section 3 to ensure a good anchoring of the section 3 to the concrete of the slab 6 or the molded floor.
  • the female portion 3A is of sufficient length to receive the male portion from its left edge to its right edge.
  • the male part 2A has an upper wall 2A1, a lower wall 2A2 and an intermediate wall 2A3 located between the lower and upper walls 2A1 and 2A2 (forming the extreme edge), while the female part 3A has an upper wall 3A1, a wall lower 3A2 and an intermediate wall 3A3 located between the lower and upper walls 3A1 and 3A2 (forming the bottom).
  • a clearance exists between the walls 2A1,2A2 and 2A3 of the male part and the walls 3A1,3A2 and 3A3 of the female part when the male part is engaged in the female part.
  • Elastomeric seals 10A, 10B forming the compressible assembly are situated between on the one hand the lower and upper walls of the male part and on the other hand the lower and upper walls of the female part.
  • the seals comprise a layer of compressible foam 100 of 5 mm thick, and a fiberglass frame 101 (perpendicular fibers) associated with a layer of adhesive 102.
  • the weft is located in the vicinity of the foam 100 and is bonded to it. foam through the adhesive layer, the adhesive layer remaining free to stick the elastomeric seal on the wall 2A1 or 2A2.
  • the thickness of the adhesive layer and the weft is advantageously less than 1 mm, for example less than 0.5 mm.
  • the layer of adhesive associated with the weft advantageously has a thickness substantially equal to the thickness of the weft.
  • the screen is made by means of glass fibers extending in two distinct directions, advantageously perpendicular to one another.
  • the fibers thus advantageously define a mesh or a structure having substantially square cells or openings of less than 10 mm by 10 mm, advantageously of less than 5 mm by 5 mm, in particular from 1 to 4 mm by 1 to 4 mm.
  • the seals 10A and 10B have a layered or lamellar structure.
  • the joints are stuck on the walls 2A1, 2A2.
  • the weft allows a correct placement of the joints on the walls 2A1 and 2A2, and a good fixation of the joints.
  • the weft makes it possible to oppose a detachment of the joints during a relative displacement between the profiles with the compressed joints, for example a relative displacement of 0.5 to 1 cm, displacement due to the shrinkage of the concrete.
  • the seals 10A, 10B comprise a layer of closed cell foam with a size of less than 1mm, these seals are made of elastomeric material.
  • the thickness of the layer 100 is in the uncompressed state of about 2 to 3 mm, while the space between the wall 2A1 and the wall 3A1, as well as the space between the wall 2A2 and the wall 3A2 present a spacing W of the order of 1 mm, preferably less than 1 mm, this spacing remaining substantially constant during a relative movement of the profiles between them.
  • seals 10A and 10B ensure that during the removal of the concrete, vertical movements of the profiles between them can be avoided.
  • the seals 10A and 10B are not bonded to the walls 3A1 and 3A2, so that a relative movement between the face of the joints in contact with the walls 3A1 and 3A2 and the walls 3A1 and 3A2 is possible during the removal of the concrete.
  • This relative movement in the absence of vertical relative movement avoids problems of unevenness at the joints, while ensuring a relative horizontal movement of the profiles during the withdrawal.
  • the adhesive 102 is chosen to ensure that the face of the joints in contact with the walls 2A 1 and 2A2 remains attached to said walls during the removal of the concrete.
  • the seals 10A and 10B are glued on the substantially horizontal walls 2A1,2A2 (walls intended to be facing the walls 3A1,3A2 of the female element 3A).
  • the joints extend between two edges advantageously parallel and their width is smaller than the width of the walls 2A1,2A2, so that the joints only partially cover these walls.
  • a portion of the walls 2A1,2A2 adjacent the end or tip of the protuberance (2A3) is not covered by a seal. This facilitates the placement of the male part in the female part.
  • the glue is advantageously an adhesive which once cured does not allow detachment of the joint by exerting traction by hand, in particular by exerting a tensile force greater than 10 kg / m, in particular greater than 50 kg / m, preferably greater than 100 kg / m.
  • the glue once cured, is an adhesive that can no longer be solubilized or made soft by water or moisture.
  • the glue is a strong glue after solvent curing, eg exhibits organic solvent resistance.
  • Figure 2 is a sectional view of an embodiment similar to that of Figure 1.
  • a compressible assembly of elastomeric material 10 is used to extend between the male portion 2A and the female portion 3A.
  • the elastomeric compressible assembly is partially bonded to the faces 3A1 and 3A2.
  • This layer of adhesive is represented by the reference 102.
  • This seal is closed-cell foam with a cell size of less than 2 mm. This seal is compressed and kept compressed during the pouring of concrete to form the slabs 5 and 6 or paving, as well as during a period of hardening of the concrete.
  • the compressible assembly 10 is for example compressed during the casting of the slabs or pavements with an average compression ratio of 10 (the compression ratio being equal to the ratio between the average thickness of the seal before compression and the average thickness of the joint after compression).
  • the compressible assembly 10 has portions 10A, 10B extending between the substantially horizontal walls, a portion 10C extending in the bottom of the hollow of the female portion 3A, a portion 10D extending partially between the upper vertical walls 2C and 3C, and a portion 10E extending partially between the lower vertical walls 2D and 3D.
  • the compressible assembly 10 remains in a compressed state after the hardening phase of the concrete and its removal to ensure a good effectiveness of the metal seal.
  • the glue 102 makes it possible to ensure that the compressible assembly is correctly placed before the use of the profiles on the construction site, that is to say independently of the conditions the site, but also to avoid movements of a portion of the portion 10A, 10B relative to the horizontal walls 3A1 and 3A2.
  • the sections 2,3 When the concrete is removed from the slabs or paving, the sections 2,3 are pressed against the concrete, which ensures an excellent anchoring of the sections 2,3 to the concrete 5,6.
  • the compressible assembly 10 also ensures a seal between the sections 2,3, and forms a sealed bottom for the upper groove 11 formed between the upper vertical walls 2C, 3C, this sealed bottom to prevent the liquid placed in the throat to form a joint between the plates 2B, 3B does not flow below the slabs or between the male part and the female part. Finally, the compressible assembly 10 allows slight movements between the male part and the female part without direct metal contact of the male part with the female part.
  • the compressible assembly 10 is advantageously of the type allowing a relative movement or sliding between the seal 10 and the walls of the profiles 2.
  • Figure 3 is similar to that of Figure 2, except that the sections 2 and 3 have another shape, that the seal is partially bonded to the faces 2A1 and 2A2, and that the throat 11 is filled with a flexible seal 12.
  • the compression of the compressible assembly 10 will be different for the portion of the compressible assembly situated between, on the one hand, the upper and lower walls of the male part, and on the other hand, the upper and lower walls of the female part, for the part of the compressible assembly 10 situated between the bottom of the female part and the extreme edge of the male part, and for the part of the compressible assembly 10 located between the vertical walls 2C, 2D and 3C, 3D.
  • the compression of the compressible assembly is maximum for the part between, on the one hand, the upper and lower walls of the male part, and on the other hand, the upper and lower walls of the female part, and is minimal for the part located between the vertical walls 2C, 2D and 3C, 3D.
  • FIG. 4 The embodiment of Figure 4 is similar to that of Figure 2, except that the edges of slabs or pavements 5.6 are each provided with a profile 3 having a female portion 3A.
  • a flat section 13 serves as a male part whose end is intended to be engaged in the female part 2A of the profile 3 of the molded slab or molded floor 5 and whose other end is intended to be engaged in the female part 2A of the profile molded slab or molded slab 6.
  • the flat profile 13 is surrounded by a compressible elastomeric envelope 10.
  • the envelope 10 is compressed with a compression ratio of 10 (volume ratio before compression / volume after compression or thickness of the envelope before compression / thickness after compression).
  • the envelope 10 on its faces covering the upper and lower faces of the flat profile 13 has beads 14 serving as positioning stops and means for providing additional sealing between the profiles 3.
  • the flat profile 13 is provided on its upper face and on its underside with a layer of elastomeric foam 100 bonded by means of a layer of adhesive 102 associated with a fiberglass frame 101.
  • the profile 3 of the slab or pavement 6 carries an angle 15 having an upper face 16 with a longitudinal recess 17.
  • the profile 3 of the slab or pavement 5 carries an angle 18 whose upper face 19 has a portion 20 adapted to be positioned in the longitudinal recess 17 of the bracket 15, while ensuring that the upper face 19 of the bracket 18 and the upper face 16 extend in the same plane. This allows during the removal of the concrete to ensure that the upper opening of the groove 11 (formed between the sections 3) remains closed, without forming a deep difference in level between the slabs or pavements 5.6.
  • the female part has the shape of a hollow whose bottom extends between two ends located in the plane of the vertical walls of the profile.
  • the hollow of a female part is adapted to receive a triangular portion of a male element, for example the half along a diagonal of a flat body of square, rectangular or diamond shape.
  • Figure 6 is a view of another compressible body.
  • This body 10 comprises a longitudinal compressible seal 21 in the uncompressed state and longitudinal tongues 22 spaced apart from each other and located along a face of the seal 21, face intended to touch the bottom of a part female.
  • the tabs are made of a plastically deformable material, preferably so that the tongue conforms to the shape of the hollow and partially part of one or side walls of the female element. Such plastic deformation is advantageous for forming a means for locking a face of the body 10 in the hollow.
  • the female part may be provided with anchor point, notches or hooks adapted to form retaining points of one or more tongues, or a portion of the face of the compressible seal.
  • Figure 7 shows the compressible body after deformation of the tongues and in compressed state.
  • the inner face of the compressible body is glued (glue points 102) at least partially on the substantially horizontal walls 2A1 and 2A2 by means of a glue layer associated with a fiber frame.
  • Figure 8 is a view of another compressible body consisting of two separate layers, for example of different compressive strength.
  • the body has a longitudinal layer 23 carrying in its middle on one side a strip 24 less wide and less thick than the layer 23.
  • the strip 24 is intended to be placed in the bottom of the female part.
  • Figure 9 shows the body of Figure 8 after its deformation between the male part and the female part.
  • the bonding of the compressible body 10 is advantageously carried out on the walls 3A1 and 3A2 during the application of a compressive force.
  • FIG. 10 is a sectional view of a compressible body comprising a foam seal 10, one face of which is provided with an anti-adhesive coating 25, while the other face carries a layer of adhesive 102 associated with a fiber frame. 101.
  • FIG. 11 is a view of an embodiment similar to that of FIG. 3, except that the groove 11 between the sections 2,3 is filled with a liquid, viscous or pasty material which after hardening or crosslinking forms a seal 29, and a support piece 30 such as a wedge is introduced into the seal 29.
  • This support piece 30 has an upper surface resistant to abrasion, for example to withstand the abrasion due to at the passage of one or trolleys.
  • the groove 11 between the sections 2,3 may not be provided with a support piece 30. This groove is then for example filled with a hard material or a loaded elastic material in hard particles.
  • the adjacent sections 2.3 or 3.3 of two molded slabs or molded slabs are held in position by means of one or tongs or other systems, so as to keep compressed the compressible assembly 10 during the casting of an adjacent slab of an already hardened slab or two adjacent slabs cast substantially at the same time.
  • the compressible assembly 10 is maintained in a compressed state long enough to have a sufficient grip or hardening of the concrete. Once the intake sufficient, it removes the holding means in position (clamps or other systems), so that the compressed compressible assembly exerts pressure on the profiles, which facilitates the movement of the profiles during a further withdrawal of one or more adjacent slabs, while avoiding variations of unwanted levels between the profiles.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
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  • Road Paving Structures (AREA)

Description

La présente invention a pour objet un joint de structure pour dalles ou dallage en matériau moulable, en particulier en béton. Elle a aussi pour objet un revêtement comportant au moins deux dalles moulées reliées entre elles par un tel joint, ainsi qu'un procédé de réalisation d'un tel joint de structure.The present invention relates to a structural joint for slabs or slabs of moldable material, in particular concrete. It also relates to a coating comprising at least two molded slabs interconnected by such a seal, as well as a method of producing such a structure seal.

On connaît de tels joints comportant un profil double en forme d'oméga. On connaît également d'autres joints de structure pour dalles ou dallage par le document EP 953682.Such seals are known having a double profile in the shape of omega. Other structural joints for slabs or paving are also known from EP 953682.

Dans ces joints, une partie mâle d'un profilé est engagée dans une partie femelle d'un autre profilé.In these seals, a male part of a profile is engaged in a female part of another profile.

Lors du retrait du béton, l'espace formé entre deux profilés adjacents s'accroît, de sorte que la partie mâle peut éventuellement flotter dans la partie femelle, ce qui peut entraîner des vibrations ou chocs lors du passage d'un chariot, par exemple d'un élévateur.During the removal of the concrete, the space formed between two adjacent sections increases, so that the male part may possibly float in the female part, which may cause vibrations or shocks during the passage of a carriage, for example of an elevator.

Enfin en cas de léger mouvement possible entre dalles, le contact métal - métal des parties mâle et femelle génère des bruits lors du passage d'un chariot, chariot élévateur, etc. Les chocs causés par le passage répété des chariots est une cause de dégradation du joint et des dalles par fatigue.Finally, in the event of slight movement between slabs, the metal - metal contact of the male and female parts generates noises when passing through a trolley, forklift, etc. The shocks caused by the repeated passage of the carriages is a cause of deterioration of the seal and slabs by fatigue.

On a déjà proposé de remplir après retrait des dalles ou dallage l'espace créé entre des profilés adjacents avec un joint liquide. Un tel joint est souvent difficile à réaliser correctement sur chantier, par exemple à cause de vides importants créés sous les dalles dans lesquels une partie du joint liquide vient à couler, de sorte que le joint ne réalise pas une jonction correcte et/ou uniforme entre les profilés.It has already been proposed to fill after removal of slabs or paving the space created between adjacent sections with a liquid seal. Such a joint is often difficult to achieve properly on site, for example because of large voids created under the slabs in which a portion of the liquid seal flows, so that the seal does not achieve a correct and / or uniform connection between the profiles.

On a également remarqué que lors de retrait important du béton de dalles adjacentes, un risque de décollement et/ou de pianotage et/ou de cintrage au moins partiel des profils du joint existait.It has also been noted that during the substantial removal of the concrete from adjacent slabs, the risk of detachment and / or strumming and / or at least partial bending of the joint profiles existed.

De plus lors du retrait de dalles adjacentes, l'espace libre entre la partie mâle et la partie femelle est accrue, de sorte que des mouvements verticaux entre les parties étaient possibles lors du passage de chariots, mouvements qui sont sources de bruits, de formations de cassures, etc.Moreover, during the removal of adjacent slabs, the free space between the male part and the female part is increased, so that vertical movements between the parts were possible during the passage of trolleys, movements that are sources of noise, formations breaks, etc.

US-A-3,276,334 décrit un joint destiné à être insérer dans un espace ou creux situé entre deux dalles. Le joint est réalisé en matière élastomère Le joint est enfoncé à l'état comprimé dans l'espace vide entre deux dalles, et une fois placé, le joint exerce une force sur les parois des dalles en regard l'une de l'autre. L'extrémité du joint présente un profilé de guidage facilitant son insertion dans l'espace entre dalles. Ce profilé de guidage est attaché au joint élastomère par une agrafe.
Un tel joint est introduit dans l'espace entre dalles après le durcissement et le retrait des dalles. L'introduction d'un tel joint est un travail long et laborieux.US-A-3,276,334 discloses a seal for insertion into a space or recess located between two slabs. The seal is made of elastomeric material The seal is pressed in the compressed state in the empty space between two slabs, and once placed, the seal exerts a force on the walls of the slabs facing one another. The end of the seal has a guide section facilitating its insertion into the space between slabs. This guide profile is attached to the elastomeric seal by a staple.
Such a seal is introduced into the space between slabs after hardening and removal of the slabs. The introduction of such a joint is a long and laborious work.

Ce document n'enseigne pas un joint comportant un profilé dont la partie mâle est engagée dans la partie femelle d'un autre profilé.This document does not teach a seal having a profile whose male part is engaged in the female part of another profile.

US-A-2,130,859 décrit un joint d'expansion pour route. Le joint comporte un premier profilé solidaire d'une première dalle, un deuxième profilé solidaire d'une deuxième dalle, et un corps élastomère s'étendant entre les profilés. Chaque profilé présente une partie femelle et une partie mâle, la partie mâle d'un profilé étant destiné à être engagée dans la partie femelle de l'autre profilé.
Entre le fond de la partie femelle et le bord extrême de la partie mâle de chaque profilé s'étend un corps compressible.US-A-2,130,859 discloses an expansion joint for road. The seal comprises a first section secured to a first slab, a second section secured to a second slab, and an elastomeric body extending between the sections. Each section has a female part and a male part, the male part of a profile being intended to be engaged in the female part of the other section.
Between the bottom of the female part and the extreme edge of the male part of each section extends a compressible body.

Un contact métallique direct des profilés existe au niveau des parties mâles et femelles du joint selon US-A-2,130,859. En cas de léger mouvement des dalles entre elles, le contact métallique des parties mâles et femelles génère des bruits.Direct metal contact profiles exists at the male and female parts of the seal according to US-A-2,130,859. In case of slight movement of the slabs between them, the metal contact of the male and female parts generates noises.

La présente invention a pour objet un joint permettant de solutionner les problèmes de génération de bruits, vibrations ou chocs dus à de léger mouvements entre dalles, ainsi que la formation de cassures.The present invention relates to a seal for solving problems generating noise, vibration or shock due to slight movement between slabs, and the formation of breaks.

A cet effet, le joint de structure conforme à l'invention comporte les caractéristiques telles que spécifiées dans les revendications.For this purpose, the structural joint according to the invention comprises the features as specified in the claims.

L'invention a pour objet un joint de structure pour dalles en matériau moulable ou dallage en matériau moulable, ledit joint comprenant au moins deux éléments en forme de profils, lesdits éléments étant des profilés et chacun d'eux étant destiné à être solidaire d'un des bords de deux dalles ou dallages moulés adjacents. Lesdits profilés comportent chacun un moyen d'ancrage destiné à ancrer chaque profilé à une dalle, et respectivement soit une partie mâle et au moins une partie femelle, soit deux parties femelles adaptées pour recevoir chacune une partie mâle d'un élément intermédiaire. Lesdits profilés sont réalisés au moins partiellement en métal, en particulier en acier. La partie mâle s'étend au moins partiellement dans la partie femelle. Ledit joint comporte en outre au moins un ensemble solide déformable et compressible situé entre une partie mâle et une partie femelle. La partie mâle présente une paroi supérieure, une paroi inférieure et un bord extrême, tandis que la partie femelle présente une paroi supérieure, une paroi inférieure et un fond. La paroi supérieure, la paroi inférieure et le bord extrême de la partie mâle sont adjacents respectivement de la paroi supérieure, de la paroi inférieure et du fond de la partie femelle lorsque la partie mâle est engagée dans ladite partie femelle. Ledit ensemble compressible est formé de plusieurs parties distinctes ou d'un corps présentant plusieurs portions. L'ensemble compressible et déformable est destiné à être comprimé entre lesdits profilés et présente au moins, deux portions ou parties. La première portion ou partie est adaptée pour s'étendre entre les parois supérieures des parties mâle et femelle, ladite première portion ou partie présentant une première face collée au moyen d'une couche de colle et/ou de points de colle sur une des parois supérieures des parties mâle et femelle, et une deuxième face opposée à la première face collée, ladite deuxième face étant en contact avec l'autre desdites parois supérieures de manière à permettre un mouvement relatif entre ladite deuxième face et l'autre desdites parois supérieures. La deuxième portion ou partie est quant à elle adaptée pour s'étendre entre les parois inférieures des parties mâle et femelle, ladite deuxième portion ou partie présentant une première face collée au moyen d'une couche de colle et/ou de points de colle sur une des parois inférieures des parties mâle et femelle, et une deuxième face opposée à la première face collée, ladite deuxième face étant en contact avec l'autre desdites parois inférieures de manière à permettre un mouvement relatif entre ladite deuxième face et l'autre desdites parois inférieures. La couche de colle et/ou lesdits points de colle est/sont adapté(e)(s) pour s'opposer à un décollement de la première face de la première portion ou partie et de la deuxième portion ou partie lors d'un déplacement relatif d'au moins 0,5 cm entre la partie mâle et la partie femelle lors du retrait des dalles ou dallages moulés.
L'ensemble solide et compressible est avantageusement maintenu en état comprimé lors du moulage des dalles adjacentes et pendant une période suffisante pour assurer une prise (par exemple du béton) minimale. L'ensemble solide et compressible reste au moins partiellement à l'état comprimé après la prise de la matière moulable (par exemple du béton) et donc après son retrait.The invention relates to a structural joint for slabs of moldable material or slab of moldable material, said seal comprising at least two elements in the form of profiles, said elements being profiles and each of them being intended to be secured to one of the edges of two slabs or adjacent molded pavements. Said profiles each comprise an anchoring means for anchoring each section to a slab, and respectively either a male portion and at least one female portion, or two female portions adapted to each receive a male portion of an intermediate member. Said profiles are made at least partially of metal, in particular steel. The male part extends at least partially into the female part. Said seal further comprises at least one deformable and compressible solid assembly located between a male part and a female part. The male portion has an upper wall, a lower wall and an extreme edge, while the female portion has an upper wall, a lower wall, and a bottom. The upper wall, the lower wall and the extreme edge of the male part are respectively adjacent to the upper wall, the bottom wall and the bottom of the female part when the male part is engaged in said female part. The compressible assembly is formed of a plurality of distinct portions or a body having a plurality of portions. The compressible and deformable assembly is intended to be compressed between said profiles and has at least two portions or parts. The first portion or portion is adapted to extend between the upper walls of the male and female parts, said first portion or portion having a first face bonded by means of a layer of adhesive and / or glue points on one of the walls upper portions of the male and female parts, and a second face opposite to the first bonded face, said second face being in contact with the other of said upper walls so as to allow relative movement between said second face and the other of said upper walls. The second portion or part is in turn adapted to extend between the lower walls of the male and female parts, said second portion or portion having a first side bonded by means of a layer of adhesive and / or points of glue on one of the lower walls of the male and female parts, and a second face opposite to the first bonded face, said second face being in contact with the other of said lower walls so as to allow relative movement between said second face and the other of said lower walls. The adhesive layer and / or said glue points are / are adapted (e) (s) to oppose a detachment of the first face of the first portion or portion and the second portion or portion during a displacement relative of at least 0.5 cm between the male part and the female part during the removal of slabs or molded pavements.
The solid and compressible assembly is advantageously maintained in a compressed state during the molding of the adjacent slabs and for a period sufficient to ensure a minimum grip (for example concrete). The solid and compressible assembly remains at least partially in the compressed state after the setting of the moldable material (for example concrete) and therefore after its removal.

De façon avantageuse, la couche de colle et/ou les points de colle est/sont associé(e)(s) à une trame ou à un réseau de fibre. En particulier, les fibres sont des fibres présentant de bonne résistance à la traction, de préférence des fibres choisies parmi le groupe constitué de fibre de verre, fibre de carbone, fibre d'aramide, fibre minérale, et leurs mélanges.Advantageously, the adhesive layer and / or the adhesive points are associated with a frame or a fiber network. In particular, the fibers are fibers having good tensile strength, preferably fibers selected from the group consisting of fiberglass, carbon fiber, aramid fiber, mineral fiber, and mixtures thereof.

Selon une forme de réalisation préférée, les première et deuxième parties ou portions de l'ensemble déformable et compressible sont collées sur la partie mâle, avantageusement avec interposition d'une trame ou d'un réseau de fibres.According to a preferred embodiment, the first and second parts or portions of the deformable and compressible assembly are glued to the male part, advantageously with the interposition of a frame or a network of fibers.

Selon une forme de réalisation avantageuse, l'ensemble compressible présente une troisième portion s'étendant entre la première portion et la deuxième portion, ladite troisième portion étant destinée à s'étendre entre le bord extrême de la partie mâle et le fond de la partie femelle. Cette troisième portion est avantageusement également collée.According to an advantageous embodiment, the compressible assembly has a third portion extending between the first portion and the second portion, said third portion being intended to extend between the extreme edge of the male part and the bottom of the part. female. This third portion is advantageously also glued.

Avantageusement, l'ensemble ou corps compressible présente une épaisseur variable à l'état non comprimé, l'épaisseur de la partie du corps compressible destinée à s'étendre entre le bord extrême de la partie mâle et le fond de la partie femelle étant plus importante que celle des parties du corps compressible destinées à être situées entre les parois supérieures ou inférieures des parties mâle et femelle.Advantageously, the assembly or compressible body has a variable thickness in the uncompressed state, the thickness of the portion of the compressible body intended to extend between the extreme edge of the male part and the bottom of the female part being more important than that of the parts of the compressible body intended to be located between the upper or lower walls of the male and female parts.

Avantageusement, l'ensemble ou corps compressible et déformable est un corps en mousse apte à subir un taux de compression d'au moins 2, avantageusement d'au moins 3, de préférence d'au moins 5, sans formation de fissures. A l'état non comprimé, le corps compressible a une épaisseur moyenne d'au moins 0,5cm, en particulier d'au moins 1cm.Advantageously, the assembly or compressible and deformable body is a foam body capable of undergoing a compression ratio of at least 2, advantageously at least 3, preferably at least 5, without crack formation. In the uncompressed state, the compressible body has an average thickness of at least 0.5 cm, in particular at least 1 cm.

Selon un détail d'une forme de réalisation, l'ensemble ou corps compressible est réalisé en mousse à cellules fermées, lesdites cellules ayant avantageusement un diamètre moyen (en nombre) inférieur à 2mm, de préférence inférieur à 1mm.According to a detail of an embodiment, the assembly or compressible body is made of closed-cell foam, said cells advantageously having a mean diameter (in number) of less than 2 mm, preferably less than 1 mm.

Selon un détail d'une autre forme de réalisation, l'ensemble ou corps compressible est réalisé en mousse à cellules ouvertes, lesdites cellules ayant avantageusement un diamètre moyen inférieur à 2mm, de préférence inférieur à 1 mm.According to a detail of another embodiment, the assembly or compressible body is made of open-cell foam, said cells advantageously having an average diameter of less than 2 mm, preferably less than 1 mm.

Selon toujours un autre détail d'une forme de réalisation, l'ensemble ou corps compressible est réalisé en mousse partiellement avec des cellules ouvertes et par exemple avec des cellules fermées. L'ensemble ou corps compressible peut également être réalisé en plusieurs couches différentes, par exemple une ou plusieurs couches compressibles à cellules ouvertes, et une ou plusieurs couches compressibles à cellules fermées, la ou lesdites couches pouvant présenter des caractéristiques de compression différentes. Lorsque l'ensemble ou corps compressible est réalisé en plusieurs couches, par exemple en deux ou trois couches, les couches peuvent être attachées les unes aux autres ou peuvent être libres de glisser l'une par rapport à l'autre.According to still another detail of an embodiment, the assembly or compressible body is made of foam partially with open cells and for example with closed cells. The assembly or compressible body may also be made of several different layers, for example one or more open cell compressible layers, and one or more closed cell compressible layers, the layer or layers may have different compression characteristics. When the assembly or compressible body is made in several layers, for example in two or three layers, the layers may be attached to each other or may be free to slide relative to each other.

Selon un détail d'une forme de réalisation préférée, l'ensemble compressible présente ou est associé sur sa face non collée, à un moyen anti adhérant adapté pour toucher une paroi de la partie mâle et/ou femelle.
Selon une particularité, l'ensemble compressible est réalisé en un matériau élastomère, présentant une épaisseur de moins de 3mm à l'état non comprimé, en particulier de moins de 2 mm.According to a detail of a preferred embodiment, the compressible assembly has or is associated on its non-bonded side, anti-adherent means adapted to touch a wall of the male and / or female part.
According to a feature, the compressible assembly is made of an elastomeric material, having a thickness of less than 3 mm in the uncompressed state, in particular less than 2 mm.

Selon un détail d'une autre forme de réalisation, l'ensemble ou corps compressible est associé à un élément déformable plastiquement, par exemple un profilé réalisé en plastique dur de faible épaisseur. Ce profilé a avantageusement une largueur supérieure à la largeur du fond de la partie femelle. Une déformation de l'élément déformable est avantageusement réalisée avant et/ou pendant l'introduction de la partie mâle dans la partie femelle, l'élément déformable une fois déformé étant apte à agir comme moyen (avantageusement supplémentaire) de maintien en place du corps compressible entre la partie mâle et la partie femelle.According to a detail of another embodiment, the assembly or compressible body is associated with a plastically deformable element, for example a profile made of hard plastic thin. This profile advantageously has a width greater than the width of the bottom of the female part. A deformation of the deformable element is advantageously carried out before and / or during the introduction of the male part into the female part, the deformable element once deformed being able to act as a means (advantageously additional) of holding the body in place compressible between the male part and the female part.

Selon un détail avantageux, l'ensemble ou le corps compressible présente une épaisseur variable à l'état non comprimé, l'épaisseur de la partie du corps compressible destinée à s'étendre entre le bord extrême de la partie mâle et le fond de la partie femelle étant plus importante que celle des parties ou portions du corps ou de l'ensemble compressible destinées à être situées entre les parois supérieures ou inférieures des parties mâle et femelle.
Un tel corps ou ensemble compressible est alors également maintenu en position grâce à l'épaisseur plus importante de la partie du corps compressible s'étendant entre le bord extrême de la partie mâle et le fond de la partie femelle.According to an advantageous detail, the assembly or the compressible body has a variable thickness in the uncompressed state, the thickness of the portion of the compressible body intended to extend between the extreme edge of the male part and the bottom of the female part being larger than that of the parts or portions of the body or the compressible assembly intended to be located between the upper or lower walls of the male and female parts.
Such a body or compressible assembly is then also held in position due to the greater thickness of the portion of the compressible body extending between the extreme edge of the male part and the bottom of the female part.

L'ensemble ou corps compressible est avantageusement réalisé en mousse à cellules fermées, à basse de caoutchouc, en particulier de caoutchouc synthétique, par exemple en Néoprène. L'ensemble ou corps compressible sera avantageusement exempt ou sensiblement exempt de lubrifiants ou de plastifiants.The assembly or compressible body is advantageously made of closed cell foam, low rubber, particularly synthetic rubber, for example neoprene. The assembly or compressible body will be advantageously free or substantially free of lubricants or plasticizers.

L'ensemble ou corps compressible aura de préférence des propriétés de résistance au vieillissement aux rayons UV, par exemple grâce à l'emploi d'un ou de plusieurs additifs.The assembly or compressible body will preferably have UV resistance properties, for example by using one or more additives.

Le corps ou ensemble compressible a avantageusement une résistance à l'absorption d'eau. Par exemple, le corps compressible plongé dans de l'eau absorbe moins de 5 % en poids d'eau en 24 heures. La quantité d'eau absorbée est déterminée en faisant la différence entre le poids du corps ou ensemble compressible plongé pendant 24 heures dans de l'eau à 20°C et le poids du corps
ou ensemble compressible sec (teneur en eau absorbée de moins de 0,1%) avant son immersion dans l'eau. De préférence, le corps ou ensemble compressible absorbe moins de 3% en poids, en particulier moins de 2% en poids, tel que moins de 1 % en poids d'eau après être plongé dans de l'eau pendant 24 heures.The compressible body or assembly preferably has resistance to water absorption. For example, the compressible body immersed in water absorbs less than 5% by weight of water in 24 hours. The amount of water absorbed is determined by making the difference between the body weight or compressible set plunged for 24 hours in water at 20 ° C and the body weight
or dry compressible assembly (absorbed moisture content of less than 0.1%) prior to immersion in water. Preferably, the compressible body or assembly absorbs less than 3% by weight, especially less than 2% by weight, such as less than 1% by weight of water after being immersed in water for 24 hours.

Le corps ou ensemble compressible présente avantageusement une résistance à la compression de 20 à 100 kPa (de préférence de 30 à 70 KPa ou 300 g/cm2 à 700g/cm2, en particulier d'environ 500 KPa ou 500g/cm2) avec une réduction de volume ou un écrasement de 20 à 40%, en particulier de 25%.The compressible body or assembly advantageously has a compressive strength of 20 to 100 kPa (preferably 30 to 70 KPa or 300 g / cm 2 to 700 g / cm 2 , in particular approximately 500 KPa or 500 g / cm 2 ). with a reduction in volume or a crush of 20 to 40%, especially 25%.

Le corps ou ensemble compressible a avantageusement une densité comprise entre 75 et 500kg/m3, en particulier entre 100 et 300 kg/m3.The body or compressible assembly preferably has a density of between 75 and 500kg / m 3, particularly between 100 and 300 kg / m 3.

Selon un détail particulier, le corps ou ensemble compressible est réalisé en un matériau élastomère.According to a particular detail, the body or compressible assembly is made of an elastomeric material.

Selon un détail d'une forme de réalisation, les parois supérieures et inférieures des parties mâle et femelle sont distantes respectivement l'une de l'autre d'une distance de moins de 0,5cm, avantageusement de moins de 3mm, de préférence environ 0,2 mm à environ 1mm.According to a detail of an embodiment, the upper and lower walls of the male and female parts are respectively spaced from each other by a distance of less than 0.5 cm, preferably less than 3 mm, preferably about 0.2 mm to about 1mm.

Avantageusement, les profilés présentent chacun une paroi sensiblement verticale, tandis que le corps ou ensemble déformable compressible présente des portions s'étendant au moins partiellement entre les parois sensiblement verticales des profilés.Advantageously, the profiles each have a substantially vertical wall, while the body or compressible deformable assembly has portions extending at least partially between the substantially vertical walls of the profiles.

Selon une forme de réalisation, les profilés présentent le long de leur bord supérieur un plat, le plat d'un premier profilé étant destiné à s'étendre au moins partiellement au-dessus d'une partie du plat du deuxième profilé.
Par exemple, le plat du deuxième profilé présente un renfoncement dans lequel s'étend le plat du premier profilé, tandis qu'au moins une partie de la face supérieure du plat du premier profilé et la face supérieure du plat du deuxième profilé s'étendent sensiblement dans un même plan.According to one embodiment, the profiles have along their upper edge a flat, the flat of a first section being intended to extend at least partially above a portion of the flat of the second profile.
For example, the flat of the second profile has a recess in which extends the flat of the first section, while at least a portion of the upper face of the flat of the first profile and the upper face of the flat of the second section extend. substantially in the same plane.

L'invention a également pour objet un revêtement comportant au moins deux dalles reliées entre elles par au moins un joint suivant l'invention tel que décrit ci-avant. De façon avantageuse, l'espace adjacent du bord supérieur du revêtement situé entre deux profilés en regard l'un de l'autre est rempli d'un joint souple, dans lequel est avantageusement introduite une pièce d'appui.The invention also relates to a coating comprising at least two slabs interconnected by at least one seal according to the invention as described above. Advantageously, the space adjacent to the upper edge of the lining situated between two sections facing each other is filled with a flexible joint, in which a bearing piece is advantageously inserted.

L'invention a également pour objet un procédé de réalisation d'un joint entre deux dalles adjacents, ledit joint étant un joint suivant l'invention, dans lequel l'ensemble solide compressible est maintenu en état comprimé lors du moulage des dalles adjacentes et pendant une période suffisante pour assurer une prise minimale des dalles. Ledit ensemble est avantageusement encore comprimé après la prise de la matière moulable ou après son retrait.The subject of the invention is also a process for producing a joint between two adjacent slabs, said seal being a seal according to the invention, in which the compressible solid assembly is maintained in a compressed state during the molding of the slabs. adjacent areas and for a period of time sufficient to ensure minimum slab hold. Said assembly is advantageously still compressed after setting the moldable material or after removal.

Des particularités et détails de formes de réalisation de l'invention ressortiront de la description détaillée suivante dans laquelle il est fait référence aux dessins ci-annexés.Features and details of embodiments of the invention will become apparent from the following detailed description in which reference is made to the accompanying drawings.

Dans ces dessins,

  • la figure 1 est une vue en coupe d'un joint de dalles ou dallage en matériau moulable après un retrait important,
  • la figure 2 est une vue en coupe d'une autre forme de réalisation d'un joint de dalles ou dallage en matériau moulable après un retrait important,
  • la figure 3 est une vue en coupe d'encore une autre forme de réalisation,
  • la figure 4 est une vue en coupe d'une quatrième forme de réalisation d'un joint de dalles après un retrait important,
  • la figure 5 est une vue partielle en perspective de la partie mâle de la forme de réalisation de la figure 4,
  • la figure 6 est une vue partielle en perspective d'un corps compressible avant sa compression entre les profilés du joint,
  • la figure 7 est une vue du corps compressible de la figure 6 après son placement entre les profilés du joint,
  • les figures 8 et 9 sont des vues partielles en perspective d'une autre forme de réalisation d'un corps compressible avant et après son placement entre les profilés du joint,
  • la 10 figure est une vue en coupe d'une forme particulière de réalisation d'un corps compressible,
  • la figure 11 est une vue en coupe d'une forme de réalisation particulière d'un joint de dalles,
  • la figure 12 est une vue à plus grande échelle d'un corps compressible de la figure 1, et
  • la figure 13 est une vue d'un profilé mâle en tant que variante de la figure 5.
In these drawings,
  • FIG. 1 is a sectional view of a slab joint or slab of moldable material after a large shrinkage,
  • FIG. 2 is a sectional view of another embodiment of a slab joint or slab of moldable material after a large shrinkage,
  • FIG. 3 is a sectional view of yet another embodiment,
  • FIG. 4 is a sectional view of a fourth embodiment of a slab joint after a large shrinkage,
  • FIG. 5 is a partial perspective view of the male part of the embodiment of FIG. 4,
  • FIG. 6 is a partial perspective view of a compressible body before its compression between the sections of the joint,
  • FIG. 7 is a view of the compressible body of FIG. 6 after its placement between the joint profiles,
  • Figures 8 and 9 are partial perspective views of another embodiment of a compressible body before and after its placement between the joint profiles,
  • the figure is a sectional view of a particular embodiment of a compressible body,
  • FIG. 11 is a sectional view of a particular embodiment of a slab joint,
  • FIG. 12 is a view on a larger scale of a compressible body of FIG. 1, and
  • Figure 13 is a view of a male section as an alternative of Figure 5.

Le joint 1 représenté à la figure 1 comprend un profilé 2 avec une partie mâle 2A et un profilé 3 avec un partie femelle 3A adaptée pour recevoir la partie mâle 2A.
Le profilé 2 est réalisé par exemple par extrusion ou pliage par exemple à partir d'une tôle en acier, par exemple en acier galvanisé, en acier traité contre la corrosion, en acier recouvert d'un film ou couche de protection, en acier inoxydable, etc. L'extrémité supérieure du profilé 2 présente un plat 2B destiné à servir de protection du bord de la dalle 5. Dans d'autres formes de réalisation, l'extrémité supérieure du profilé 2 peut ne pas être munie de plat de protection 2B. La partie mâle 2A forme un doigt d'épaisseur E sensiblement constante et de longueur L. Le profilé 2 comporte une paroi verticale 2C située au-dessus de la partie mâle 2A et une paroi verticale 2D située en dessous de la partie mâle 2A. Un moyen d'ancrage 8 est attaché au profilé 2 pour assurer un bon ancrage du profilé 2 au béton de la dalle 5.The seal 1 shown in Figure 1 comprises a section 2 with a male portion 2A and a profile 3 with a female portion 3A adapted to receive the male portion 2A.
The profile 2 is made for example by extrusion or folding for example from a steel sheet, for example galvanized steel, corrosion-resistant steel, steel covered with a film or protective layer, stainless steel etc. The upper end of the profile 2 has a plate 2B intended to serve as a protection of the edge of the slab 5. In other embodiments, the upper end of the profile 2 may not be provided with a protective plate 2B. The male portion 2A forms a finger of substantially constant thickness E and length L. The profile 2 comprises a vertical wall 2C located above the male portion 2A and a vertical wall 2D located below the male portion 2A. An anchoring means 8 is attached to the section 2 to ensure good anchoring of the section 2 to the concrete of the slab 5.

Le profilé 3 réalisé par exemple par extrusion ou pliage par exemple à partir d'une tôle en acier, de préférence en acier inoxydable présente à son extrémité supérieure un plat 3B destiné à servir de protection du bord de la dalle 6. Dans une forme de réalisation possible, le profilé 3 peut ne pas comporter de plat de protection 3B. La partie femelle 3A forme un creux dont la largeur correspond sensiblement à l'épaisseur ou largeur E de la partie mâle 2A (par exemple de 1 à 5 mm de plus que l'épaisseur ou largeur E) et dont la profondeur P correspond sensiblement à la longueur L de la partie mâle 2A (par exemple de 2 à 10 mm de plus que la longueur L), en aluminium ou de préférence en acier. Le profilé 3 comporte une paroi verticale 3C située au-dessus de la partie femelle 3A et une paroi verticale 3D située en dessous de la partie femelle 3A. Un moyen d'ancrage 9 est attaché au profilé 3 pour assurer un bon ancrage du profilé 3 au béton de la dalle 6 ou du dallage moulé.The profile 3 made for example by extrusion or folding for example from a steel sheet, preferably stainless steel has at its upper end a plate 3B intended to protect the edge of the slab 6. In a form of possible embodiment, the profile 3 may not include a protective plate 3B. The female portion 3A forms a hollow whose width substantially corresponds to the thickness or width E of the male portion 2A (for example from 1 to 5 mm more than the thickness or width E) and whose depth P substantially corresponds to the length L of the male portion 2A (for example 2 to 10 mm longer than the length L), made of aluminum or preferably steel. The section 3 comprises a vertical wall 3C located above the female portion 3A and a vertical 3D wall located below the female portion 3A. An anchoring means 9 is attached to the section 3 to ensure a good anchoring of the section 3 to the concrete of the slab 6 or the molded floor.

La partie femelle 3A a une longueur suffisante pour recevoir la partie mâle depuis son bord gauche jusqu'à son bord droit.The female portion 3A is of sufficient length to receive the male portion from its left edge to its right edge.

La partie mâle 2A présente une paroi supérieure 2A1, une paroi inférieure 2A2 et une paroi intermédiaire 2A3 située entre les parois inférieure et supérieure 2A1 et 2A2 (formant le bord extrême), tandis que la partie femelle 3A présente une paroi supérieure 3A1, une paroi inférieure 3A2 et une paroi intermédiaire 3A3 située entre les parois inférieure et supérieure 3A1 et 3A2 (formant le fond). Un jeu existe entre les parois 2A1,2A2 et 2A3 de la partie mâle et les parois 3A1,3A2 et 3A3 de la partie femelle lorsque la partie mâle est engagée dans la partie femelle.The male part 2A has an upper wall 2A1, a lower wall 2A2 and an intermediate wall 2A3 located between the lower and upper walls 2A1 and 2A2 (forming the extreme edge), while the female part 3A has an upper wall 3A1, a wall lower 3A2 and an intermediate wall 3A3 located between the lower and upper walls 3A1 and 3A2 (forming the bottom). A clearance exists between the walls 2A1,2A2 and 2A3 of the male part and the walls 3A1,3A2 and 3A3 of the female part when the male part is engaged in the female part.

Des joints élastomères 10A, 10B formant l'ensemble compressible sont situés entre d'une part les parois inférieure et supérieure de la partie mâle et d'autre part les parois inférieure et supérieure de la partie femelle. Les joints comprennent une couche de mousse 100 compressible de 5mm d'épaisseur, et une trame de fibre de verre 101 (fibres perpendiculaires) associée à une couche de colle 102. La trame est située au voisinage de la mousse 100 et est collée sur cette mousse grâce à la couche de colle, la couche de colle restant libre pour coller le joint élastomère sur la paroi 2A1 ou 2A2. L'épaisseur de la couche de colle et de la trame est avantageusement inférieure à 1mm, par exemple inférieure à 0,5mm. La couche de colle associée à la trame a avantageusement une épaisseur sensiblement égale à l'épaisseur de la trame. La trame est réalisée au moyen de fibres de verre s'étendant dans deux directions distinctes, avantageusement perpendiculaires entre elles. Les fibres définissent ainsi avantageusement un maillage ou une structure présentant des alvéoles ou des ouvertures sensiblement carrées de moins de 10mm sur 10mm, avantageusement de moins de 5mm sur 5mm, en particulier de 1 à 4mm sur 1 à 4mm. Les joints 10A et 10B ont une structure en couche ou lamellaire. Les joints sont collés sur les parois 2A1, 2A2. La trame permet un placement correct des joints sur les parois 2A1 et 2A2, et une bonne fixation des joints. De plus la trame permet de s'opposer à un décollement des joints lors d'un déplacement relatif entre les profilés avec les joints comprimés, par exemple d'un déplacement relatif de 0,5 à 1 cm, déplacement du au retrait du béton.Elastomeric seals 10A, 10B forming the compressible assembly are situated between on the one hand the lower and upper walls of the male part and on the other hand the lower and upper walls of the female part. The seals comprise a layer of compressible foam 100 of 5 mm thick, and a fiberglass frame 101 (perpendicular fibers) associated with a layer of adhesive 102. The weft is located in the vicinity of the foam 100 and is bonded to it. foam through the adhesive layer, the adhesive layer remaining free to stick the elastomeric seal on the wall 2A1 or 2A2. The thickness of the adhesive layer and the weft is advantageously less than 1 mm, for example less than 0.5 mm. The layer of adhesive associated with the weft advantageously has a thickness substantially equal to the thickness of the weft. The screen is made by means of glass fibers extending in two distinct directions, advantageously perpendicular to one another. The fibers thus advantageously define a mesh or a structure having substantially square cells or openings of less than 10 mm by 10 mm, advantageously of less than 5 mm by 5 mm, in particular from 1 to 4 mm by 1 to 4 mm. The seals 10A and 10B have a layered or lamellar structure. The joints are stuck on the walls 2A1, 2A2. The weft allows a correct placement of the joints on the walls 2A1 and 2A2, and a good fixation of the joints. In addition the weft makes it possible to oppose a detachment of the joints during a relative displacement between the profiles with the compressed joints, for example a relative displacement of 0.5 to 1 cm, displacement due to the shrinkage of the concrete.

Les joints 10A, 10B comprennent une couche de mousse à cellules fermées avec une taille de moins de 1mm, ces joints sont réalisés en matériau élastomère. L'épaisseur de la couche 100 est à l'état non comprimé d'environ 2 à 3 mm, tandis que l'espace entre la paroi 2A1 et la paroi 3A1, ainsi que l'espace entre la paroi 2A2 et la paroi 3A2 présentent un écartement W de l'ordre de 1mm, avantageusement de moins de 1mm, cet écartement restant sensiblement constant lors d'un mouvement relatif des profilés entre eux.The seals 10A, 10B comprise a layer of closed cell foam with a size of less than 1mm, these seals are made of elastomeric material. The thickness of the layer 100 is in the uncompressed state of about 2 to 3 mm, while the space between the wall 2A1 and the wall 3A1, as well as the space between the wall 2A2 and the wall 3A2 present a spacing W of the order of 1 mm, preferably less than 1 mm, this spacing remaining substantially constant during a relative movement of the profiles between them.

Ces joints 10A et 10B assurent que lors du retrait du béton, des mouvements verticaux des profilés entre eux puissent être évités.These seals 10A and 10B ensure that during the removal of the concrete, vertical movements of the profiles between them can be avoided.

Les joints 10A et 10B ne sont pas collés aux parois 3A1 et 3A2, se sorte qu'un mouvement relatif entre la face des joints en contact avec les parois 3A1 et 3A2 et les parois 3A1 et 3A2 est possible lors du retrait du béton. Ce mouvement relatif en l'absence de mouvement relatif vertical permet d'éviter des problèmes de dénivellement au niveau des joints, tout en assurant un mouvement relatif horizontal des profilés lors du retrait.The seals 10A and 10B are not bonded to the walls 3A1 and 3A2, so that a relative movement between the face of the joints in contact with the walls 3A1 and 3A2 and the walls 3A1 and 3A2 is possible during the removal of the concrete. This relative movement in the absence of vertical relative movement avoids problems of unevenness at the joints, while ensuring a relative horizontal movement of the profiles during the withdrawal.

La colle 102 est choisie pour assurer que la face des joints en contact avec les parois 2A 1 et 2A2 reste attachée aux dites parois lors du retrait du béton.The adhesive 102 is chosen to ensure that the face of the joints in contact with the walls 2A 1 and 2A2 remains attached to said walls during the removal of the concrete.

Les joints 10A et 10B sont collés sur les parois sensiblement horizontales 2A1,2A2 (parois destinées à être en regard des parois 3A1,3A2 de l'élément femelle 3A). Les joints s'étendent entre deux bords avantageusement parallèles et leur largeur est inférieure à la largeur des parois 2A1,2A2, de sorte que les joints ne recouvrent que partiellement ces parois. En particulier, une partie des parois 2A1,2A2 adjacente de l'extrémité ou pointe de la protubérance (2A3) n'est pas recouverte par un joint. Ceci facilite le placement de la partie mâle dans la partie femelle.The seals 10A and 10B are glued on the substantially horizontal walls 2A1,2A2 (walls intended to be facing the walls 3A1,3A2 of the female element 3A). The joints extend between two edges advantageously parallel and their width is smaller than the width of the walls 2A1,2A2, so that the joints only partially cover these walls. In particular, a portion of the walls 2A1,2A2 adjacent the end or tip of the protuberance (2A3) is not covered by a seal. This facilitates the placement of the male part in the female part.

L'utilisation des joints 10A et 10B collés sur les faces sensiblement horizontales 2A1,2A2 de l'élément mâle permet une fixation correcte des joints. La colle est avantageusement une colle qui une fois durcie ne permet pas un décollement du joint en exerçant une traction à la main, en particulier en exerçant un effort de traction supérieur à 10 kg/m, en particulier supérieur à 50 kg/m, de préférence supérieur à 100 kg/m. La colle, une fois durcie, est une colle qui ne peut plus être solubilisée ou rendue molle par l'eau ou l'humidité. De préférence, la colle est une colle résistante après durcissement au solvant, par exemple présente une résistance au solvant organique.The use of the seals 10A and 10B bonded to the substantially horizontal faces 2A1,2A2 of the male element allows a correct attachment of the seals. The glue is advantageously an adhesive which once cured does not allow detachment of the joint by exerting traction by hand, in particular by exerting a tensile force greater than 10 kg / m, in particular greater than 50 kg / m, preferably greater than 100 kg / m. The glue, once cured, is an adhesive that can no longer be solubilized or made soft by water or moisture. Preferably, the glue is a strong glue after solvent curing, eg exhibits organic solvent resistance.

La figure 2 est une vue en coupe d'une forme de réalisation similaire à celle de la figure 1.Figure 2 is a sectional view of an embodiment similar to that of Figure 1.

Un ensemble compressible en matière élastomère 10 est utilisé pour s'étendre entre la partie mâle 2A et la partie femelle 3A. Dans cette forme de réalisation l'ensemble compressible élastomère est collé partiellement aux faces 3A1 et 3A2. Cette couche de colle est représentée par la référence 102. Ce joint est en mousse à cellules fermées avec une taille des cellules de moins de 2mm. Ce joint est comprimé et maintenu comprimé lors de la coulée du béton pour former les dalles 5 et 6 ou dallage, ainsi que pendant une période de durcissement suffisante du béton. L'ensemble compressible 10 est par exemple comprimé lors de la coulée des dalles ou de dallages avec un taux de compression moyen de 10 (le taux de compression étant égal au rapport entre l'épaisseur moyenne du joint avant compression et l'épaisseur moyenne du joint après compression). L'ensemble compressible 10 présente des portions 10A, 10B s'étendant entre les parois sensiblement horizontales, une portion 10C s'étendant dans le fond du creux de la partie femelle 3A, une portion 10D s'étendant partiellement entre les parois verticales supérieures 2C et 3C, et une portion 10E s'étendant partiellement entre les parois verticales inférieures 2D et 3D. L'ensemble compressible 10 reste dans un état comprimé après la phase de durcissement du béton et de son retrait pour assurer une bonne efficacité du joint métallique.A compressible assembly of elastomeric material 10 is used to extend between the male portion 2A and the female portion 3A. In this embodiment, the elastomeric compressible assembly is partially bonded to the faces 3A1 and 3A2. This layer of adhesive is represented by the reference 102. This seal is closed-cell foam with a cell size of less than 2 mm. This seal is compressed and kept compressed during the pouring of concrete to form the slabs 5 and 6 or paving, as well as during a period of hardening of the concrete. The compressible assembly 10 is for example compressed during the casting of the slabs or pavements with an average compression ratio of 10 (the compression ratio being equal to the ratio between the average thickness of the seal before compression and the average thickness of the joint after compression). The compressible assembly 10 has portions 10A, 10B extending between the substantially horizontal walls, a portion 10C extending in the bottom of the hollow of the female portion 3A, a portion 10D extending partially between the upper vertical walls 2C and 3C, and a portion 10E extending partially between the lower vertical walls 2D and 3D. The compressible assembly 10 remains in a compressed state after the hardening phase of the concrete and its removal to ensure a good effectiveness of the metal seal.

La colle 102 permet d'assurer que l'ensemble compressible soit correctement placé avant l'utilisation des profilés sur le chantier, c'est-à-dire indépendamment des conditions du chantier, mais également d'éviter des mouvements d'une partie de la portion 10A, 10B par rapport aux parois horizontales 3A1 et 3A2.The glue 102 makes it possible to ensure that the compressible assembly is correctly placed before the use of the profiles on the construction site, that is to say independently of the conditions the site, but also to avoid movements of a portion of the portion 10A, 10B relative to the horizontal walls 3A1 and 3A2.

Lors du retrait du béton des dalles ou du dallage, les profilés 2,3 sont pressés contre le béton, ce qui assure un excellent ancrage des profilés 2,3 au béton 5,6. L'ensemble compressible 10 assure également une étanchéité entre les profilés 2,3, et forme un fond étanche pour la gorge supérieure 11 formée entre les parois verticales supérieures 2C,3C, ce fond étanche permettant d'éviter que le liquide placé dans la gorge pour former un joint entre les plats 2B,3B ne coule en dessous des dalles ou entre la partie mâle et la partie femelle. Enfin, l'ensemble compressible 10 permet de légers mouvements entre la partie mâle et la partie femelle sans contact métallique direct de la partie mâle avec la partie femelle.When the concrete is removed from the slabs or paving, the sections 2,3 are pressed against the concrete, which ensures an excellent anchoring of the sections 2,3 to the concrete 5,6. The compressible assembly 10 also ensures a seal between the sections 2,3, and forms a sealed bottom for the upper groove 11 formed between the upper vertical walls 2C, 3C, this sealed bottom to prevent the liquid placed in the throat to form a joint between the plates 2B, 3B does not flow below the slabs or between the male part and the female part. Finally, the compressible assembly 10 allows slight movements between the male part and the female part without direct metal contact of the male part with the female part.

L'ensemble compressible 10 est avantageusement du type permettant un mouvement relatif ou glissement entre le joint 10 et les parois des profilés 2.The compressible assembly 10 is advantageously of the type allowing a relative movement or sliding between the seal 10 and the walls of the profiles 2.

La forme de réalisation de la figure 3 est similaire à celle de la figure 2, si ce n'est que les profilés 2 et 3 ont une autre forme, que le joint est partiellement collé sur les faces 2A1 et 2A2, et que la gorge 11 est remplie d'un joint souple 12.The embodiment of Figure 3 is similar to that of Figure 2, except that the sections 2 and 3 have another shape, that the seal is partially bonded to the faces 2A1 and 2A2, and that the throat 11 is filled with a flexible seal 12.

Il est clair que dans la forme de réalisation de la figure 2, la compression de l'ensemble compressible 10 sera différente pour la partie de l'ensemble compressible située entre d'une part, les parois supérieure et inférieure de la partie mâle, et d'autre part, les parois supérieure et inférieure de la partie femelle, pour la partie de l'ensemble compressible 10 située entre le fond de la partie femelle et le bord extrême de la partie mâle, et pour la partie de l'ensemble compressible 10 située entre les parois verticales 2C,2D et 3C,3D. La compression de l'ensemble compressible est maximale pour la partie située entre d'une part, les parois supérieure et inférieure de la partie mâle, et d'autre part, les parois supérieure et inférieure de la partie femelle, et est minimale pour la partie située entre les parois verticales 2C,2D et 3C,3D.It is clear that in the embodiment of FIG. 2, the compression of the compressible assembly 10 will be different for the portion of the compressible assembly situated between, on the one hand, the upper and lower walls of the male part, and on the other hand, the upper and lower walls of the female part, for the part of the compressible assembly 10 situated between the bottom of the female part and the extreme edge of the male part, and for the part of the compressible assembly 10 located between the vertical walls 2C, 2D and 3C, 3D. The compression of the compressible assembly is maximum for the part between, on the one hand, the upper and lower walls of the male part, and on the other hand, the upper and lower walls of the female part, and is minimal for the part located between the vertical walls 2C, 2D and 3C, 3D.

La forme de réalisation de la figure 4 est similaire à celle de la figure 2, si ce n'est que les bords des dalles ou dallages 5,6 sont munis chacun d'un profilé 3 présentant une partie femelle 3A. Un profilé plat 13 sert de partie mâle dont une extrémité est destinée à être engagée dans la partie femelle 2A du profilé 3 de la dalle moulée ou dallage moulé 5 et dont l'autre extrémité est destinée à être engagée dans la partie femelle 2A du profilé de la dalle moulée ou dallage moulé 6.
Le profilé plat 13 est entouré par une enveloppe 10 en élastomère compressible. Par exemple, lors de la coulée du béton pour la formation des dalles ou dallages 5 et 6, l'enveloppe 10 est comprimée avec un taux de compression de 10 (rapport volume avant compression/ volume après compression ou épaisseur de l'enveloppe avant compression/épaisseur après compression). L'enveloppe 10 sur ses faces recouvrant les faces supérieure et inférieure du profilé plat 13 (partie mâle) présente des bourrelets 14 servant de butées de positionnement et de moyen pour assurer une étanchéité supplémentaire entre les profilés 3.
Selon une variante de cette forme de réalisation, le profilé plat 13 est muni sur sa face supérieure et sur sa face inférieure d'une couche en mousse élastomère 100 collée au moyen d'une couche de colle 102 associée à une trame de fibre de verre 101. (figure 13)The embodiment of Figure 4 is similar to that of Figure 2, except that the edges of slabs or pavements 5.6 are each provided with a profile 3 having a female portion 3A. A flat section 13 serves as a male part whose end is intended to be engaged in the female part 2A of the profile 3 of the molded slab or molded floor 5 and whose other end is intended to be engaged in the female part 2A of the profile molded slab or molded slab 6.
The flat profile 13 is surrounded by a compressible elastomeric envelope 10. For example, during the pouring of concrete for the formation of slabs or pavements 5 and 6, the envelope 10 is compressed with a compression ratio of 10 (volume ratio before compression / volume after compression or thickness of the envelope before compression / thickness after compression). The envelope 10 on its faces covering the upper and lower faces of the flat profile 13 (male part) has beads 14 serving as positioning stops and means for providing additional sealing between the profiles 3.
According to a variant of this embodiment, the flat profile 13 is provided on its upper face and on its underside with a layer of elastomeric foam 100 bonded by means of a layer of adhesive 102 associated with a fiberglass frame 101. (Figure 13)

Le profilé 3 de la dalle ou dallage 6 porte une cornière 15 présentant une face supérieure 16 avec un renfoncement longitudinal 17. Le profilé 3 de la dalle ou dallage 5 porte une cornière 18 dont la face supérieure 19 présente une portion 20 adaptée pour être positionnée dans le renfoncement longitudinal 17 de la cornière 15, tout en assurant que la face supérieure 19 de la cornière 18 et la face supérieure 16 s'étendent dans un même plan. Ceci permet lors du retrait du béton à assurer que l'ouverture supérieure de la gorge 11 (formée entre les profilés 3) reste fermée, sans formation d'une dénivellation profonde entre les dalles ou dallages 5,6.The profile 3 of the slab or pavement 6 carries an angle 15 having an upper face 16 with a longitudinal recess 17. The profile 3 of the slab or pavement 5 carries an angle 18 whose upper face 19 has a portion 20 adapted to be positioned in the longitudinal recess 17 of the bracket 15, while ensuring that the upper face 19 of the bracket 18 and the upper face 16 extend in the same plane. This allows during the removal of the concrete to ensure that the upper opening of the groove 11 (formed between the sections 3) remains closed, without forming a deep difference in level between the slabs or pavements 5.6.

Selon une variante possible, la partie femelle a la forme d'un creux dont le fond s'étend entre deux extrémités situées dans le plan des parois verticales du profilé. Par exemple le creux d'une partie femelle est adapté pour recevoir une partie triangulaire d'un élément mâle, par exemple la moitié selon une diagonale d'un corps plat de forme carrée, rectangulaire ou losange.According to a possible variant, the female part has the shape of a hollow whose bottom extends between two ends located in the plane of the vertical walls of the profile. For example the hollow of a female part is adapted to receive a triangular portion of a male element, for example the half along a diagonal of a flat body of square, rectangular or diamond shape.

La figure 6 est une vue d'un autre corps compressible. Ce corps 10 comporte un joint compressible longitudinal 21 à l'état non compressé et des languettes longitudinales 22 distantes l'une de l'autre et situées le long d'une face du joint 21, face destinée à toucher le fond d'une partie femelle. Les languettes sont réalisées en une matière déformable plastiquement, de préférence pour que la languette épouse la forme du creux et partiellement une partie d'une ou de parois latérales de l'élément femelle. Une telle déformation plastique est avantageuse pour former un moyen de blocage d'une face du corps 10 dans le creux.Figure 6 is a view of another compressible body. This body 10 comprises a longitudinal compressible seal 21 in the uncompressed state and longitudinal tongues 22 spaced apart from each other and located along a face of the seal 21, face intended to touch the bottom of a part female. The tabs are made of a plastically deformable material, preferably so that the tongue conforms to the shape of the hollow and partially part of one or side walls of the female element. Such plastic deformation is advantageous for forming a means for locking a face of the body 10 in the hollow.

Eventuellement, la partie femelle peut être munie de point d'ancrage, d'encoches ou de crochets adaptés pour former des points de retenue soit d'une ou de plusieures languettes, soit d'une partie de la face du joint compressible.Optionally, the female part may be provided with anchor point, notches or hooks adapted to form retaining points of one or more tongues, or a portion of the face of the compressible seal.

La figure 7 montre le corps compressible après déformation des languettes et en état comprimé. Avantageusement la face intérieure du corps compressible est collée (points de colle 102) au moins partiellement sur les parois sensiblement horizontales 2A1 et 2A2 au moyen d'une couche de colle associée à une trame de fibres.Figure 7 shows the compressible body after deformation of the tongues and in compressed state. Advantageously, the inner face of the compressible body is glued (glue points 102) at least partially on the substantially horizontal walls 2A1 and 2A2 by means of a glue layer associated with a fiber frame.

La figure 8 est une vue d'un autre corps compressible constitué de deux couchés distinctes, par exemple de résistance à la compression différente. Le corps comporte une couche longitudinale 23 portant en son milieu sur une face une bandelette 24 moins large et moins épaisse que la couche 23. La bandelette 24 est destinée à être placée dans le fond de la partie femelle. La figure 9 montre le corps de la figure 8 après sa déformation entre la partie mâle et la partie femelle. Le collage du corps compressible 10 est avantageusement effectué sur les parois 3A1 et 3A2 lors de l'application d'un effort de compression.Figure 8 is a view of another compressible body consisting of two separate layers, for example of different compressive strength. The body has a longitudinal layer 23 carrying in its middle on one side a strip 24 less wide and less thick than the layer 23. The strip 24 is intended to be placed in the bottom of the female part. Figure 9 shows the body of Figure 8 after its deformation between the male part and the female part. The bonding of the compressible body 10 is advantageously carried out on the walls 3A1 and 3A2 during the application of a compressive force.

La figure 10 est une vue en coupe d'un corps compressible comportant un joint de mousse 10 dont une face est munie d'un revêtement anti adhérant 25, tandis que l'autre face porte une couche de colle 102 associée à une trame de fibres 101.FIG. 10 is a sectional view of a compressible body comprising a foam seal 10, one face of which is provided with an anti-adhesive coating 25, while the other face carries a layer of adhesive 102 associated with a fiber frame. 101.

La figure 11 est une vue d'une forme de réalisation similaire à celle de la figure 3, si ce n'est que la gorge 11 entre les profilés 2,3 est remplie d'une matière liquide, visqueuse ou pâteuse qui après durcissement ou réticulation forme un joint 29, et qu'une pièce d'appui 30 tel un coin est introduit dans le joint 29. Cette pièce d'appui 30 présente une face supérieure résistante à l'abrasion, par exemple pour résister à l'abrasion due au passage d'un ou de chariots. Dans d'autres formes de réalisation, la gorge 11 entre les profilés 2,3 peut ne pas être munie d'une pièce d'appui 30. Cette gorge est alors par exemple remplie d'un matériau dur ou d'un matériau élastique chargé en particules dures.FIG. 11 is a view of an embodiment similar to that of FIG. 3, except that the groove 11 between the sections 2,3 is filled with a liquid, viscous or pasty material which after hardening or crosslinking forms a seal 29, and a support piece 30 such as a wedge is introduced into the seal 29. This support piece 30 has an upper surface resistant to abrasion, for example to withstand the abrasion due to at the passage of one or trolleys. In other embodiments, the groove 11 between the sections 2,3 may not be provided with a support piece 30. This groove is then for example filled with a hard material or a loaded elastic material in hard particles.

Les profilés 2,3 ou 3,3 adjacents de deux dalles moulées ou dallages moulés sont maintenus en position au moyen d'une ou de pinces ou autres systèmes, de manière à garder en état comprimé l'ensemble compressible 10 lors de la coulée d'une dalle adjacente d'une dalle déjà durcie ou de deux dalles adjacentes coulées sensiblement en même temps. L'ensemble compressible 10 est maintenu en état comprimé suffisamment longtemps que pour avoir une prise ou durcissement suffisant du béton. Une fois la prise suffisante, on enlève les moyens de maintien en position (pinces ou autres systèmes), de sorte que l'ensemble compressible comprimé exerce une pression sur les profilés, ce qui facilite le déplacement des profilés lors d'un retrait supplémentaire d'une ou des dalles adjacentes, tout en évitant des variations de niveaux non désirées entre les profilés.The adjacent sections 2.3 or 3.3 of two molded slabs or molded slabs are held in position by means of one or tongs or other systems, so as to keep compressed the compressible assembly 10 during the casting of an adjacent slab of an already hardened slab or two adjacent slabs cast substantially at the same time. The compressible assembly 10 is maintained in a compressed state long enough to have a sufficient grip or hardening of the concrete. Once the intake sufficient, it removes the holding means in position (clamps or other systems), so that the compressed compressible assembly exerts pressure on the profiles, which facilitates the movement of the profiles during a further withdrawal of one or more adjacent slabs, while avoiding variations of unwanted levels between the profiles.

Claims (21)

  1. Structural joint (1) for slabs made of castable material or paving made of castable material, said joint comprising at least two elements in the form of profiles (2,3), said elements (2,3) in the form of profiles being profiles intended to be integral with one of the edges of two adjacent cast slabs or paving (5,6), said profiles (2,3) each comprising a means of anchoring (8,9) the purpose of which is to anchor each profile (2,3) to a slab (5,6,) and respectively either a male part (2A) and at least one female part (3A), or two female parts (3A), each of which are able to receive a male part (13) of an intermediate element, said profiles (2,3) being made at least partially in metal, in particular in steel, and each male part (2A,13) being intended to extend at least partially into a female part (3A), said joint (1) also comprising at least one compressible and deformable solid assembly (10) intended to be situated between a male part (2A,13) and a female part (3A), the upper wall (2A1), the lower wall (2A2) and the extreme edge (2A3) of the male part (2A) being adjacent respectively to the upper wall (3A1), the lower wall (3A2) and the bottom of the female part (3A) when said male part (2A) is engaged in said female part (3A), characterized in that said deformable and compressible assembly (10) is formed of several distinct parts or a body having several portions (10A,10B,10C), the deformable and compressible assembly (10) being intended to be compressed when the adjacent slabs are cast and having a first portion or part (10A), which is able to extend between the upper walls (2A1,3A1) of the male and female parts (2A,3A), said first portion or part (10A) having a first face which is bonded using a layer of bonding agent and/or spots of bonding agent (102) on one of the upper walls (2A1,3A1) of the male and female parts (2A,3A), and a second face opposite the first bonded face, said second face being in contact with the other one of said upper walls (2A1,3A1), so as to allow a relative movement between said second face and said other upper walls, and a second portion or part (10B) which is able to extend between the lower walls (2A2,3A2) of the male and female parts (2A,3A), said second portion or part (10B) having a first face which is bonded using a layer of bonding agent and/or spots of bonding agent (102) on one of the lower walls (2A2,3A2) of the male and female parts (2A,3A) and a second face opposite the first bonded face, said second face being in contact with said other lower walls (2A2,3A2) so as to allow a relative movement between said second face and said other lower walls, the layer of bonding agent and/or said spots of bonding agent (102) being able to prevent detachment of the first face of the first portion or part (10A) and the second portion or part (10B) when a relative displacement takes place of at least 0.5 cm between the male part (2A) and the female part (3A) when the cast slabs or paving (5,6) shrink.
  2. Joint according to claim 1, characterized in that the lower and upper walls (2A1,2A2) of the male part (2A) are parallel to each other, while the lower and upper walls (3A1,3A2) of the female part (3A) are parallel to each other and are intended to be parallel to the lower and upper walls (2A1,2A2) of the male part (2A) when the latter (2A) is engaged in the female part (3A).
  3. Joint according to claim 1, characterized in that the layer of bonding agent and/or the spots of bonding agent (102) is/are associated with a web or net of fibres (101).
  4. Joint according to claim 3, characterized in that the fibres are fibres chosen from the group comprising glass fibre, carbon fibre, aramid fibre and their mixtures.
  5. Joint according to any one of claims 1 to 2, characterized in that the first and second parts or portions (10A,10B) of the deformable and compressible assembly (10) are bonded to a male part (2A), advantageously with the interposition of a web or net of fibres (101).
  6. Joint according to one of claims 1 to 5, characterized in that the deformable and compressible assembly (10) has a third portion (10C) extending between the first portion (10A) and the second portion (10B), said third portion (10C), the purpose of which is to extend between the extreme edge (2A3) of the male part (2A) and the base of the female part (3A).
  7. Joint according to claim 6, characterized in that the compressible assembly (10) has a variable thickness in the uncompressed state, the thickness of the portion (10c) of the compressible assembly (10), is intended to extend between the extreme edge (2A3) of the male part (2A) and the bottom of the female part (3A), being larger than that of the portions or parts (10A, 10B) of the compressible assembly (10) intended to be situated between the upper or lower walls (2A1,2A2,3A1,3A2) of the male parts (2A) and female parts (3A).
  8. Joint according to one of the previous claims, characterized in that the compressible and deformable assembly (10) is made of foam which is suitable to be subjected to a compression ratio of at least 2, advantageously at least 3, preferably at least 5, without cracks forming in the foam.
  9. Joint according to the previous claim, characterized in that the compressible assembly (10) is made of close-cell foam, said cells advantageously having a diameter of less than 2 mm, preferably of less than 1 mm.
  10. Joint according to claim 9, characterized in that the compressible assembly (10) is made of open-cell foam, said cells advantageously having an average diameter of less than 2 mm, preferably less than 1 mm.
  11. Joint according to any one of the previous claims, characterized in that the compressible assembly (10) has or is associated on its non-bonded surface with an anti-adherent means (25) the purpose of which is to contact a wall of the male or female part (2A,3A).
  12. Joint according to any one of the previous claims, characterized in that the compressible assembly (10) is made of an elastomer material having a thickness of less than 3 mm in the uncompressed state, in particular of less than 2 mm.
  13. Joint according to any one of the previous claims, characterized in that the profiles (2,3) have along their upper edge a flat surface (16,19), the flat surface (19) of a first profile (3), which is intended to extend at least partially above a part of the flat surface (16) of the second profile (3), said upper flat surfaces (16,19), being intended to form an upper rolling or bearing surface.
  14. Joint according to the previous claim, characterized in that the flat surface (16) of the second profile has a reinforcement (17), into which the flat surface (19) of the first profile is intended to extend at least partially, and in that at least one part of the upper face (19) of the flat surface of the first profile and one part of the upper surface of the flat surface (16) of the second profile extend approximately in the same plane in the position of use.
  15. Joint according to any one of the previous claims, characterized in that in the position of use the upper walls (2A1,3A1) of the male and female parts (1A,3A) are spaced apart by a distance of less than 0.5 cm, advantageously of less than 3 mm, preferably from 0.2 mm to 1 mm and in that the lower walls of the male and female parts (2A, 3A) are spaced apart by a distance of less than 0.5 cm, advantageously of less than 3 mm, preferably from 0.2 mm to 1 mm.
  16. Joint according to any one of the previous claims, characterized in that the profiles (2,3) each have an approximately vertical wall (2C,2D,3C,3D) and in that the compressible deformable assembly (10) is intended to extend also at least partially between the approximately vertical walls (2C,2D,3C,3D) of the profiles (2,3).
  17. Joint according to claim 6, characterized in that the compressible assembly (10) is suitable to be compressed in a manner that the compression of the compressible assembly (10) is maximal between, on the one hand, the upper and lower walls (2A1,2A2) of the male element (2A) and on the other hand, the upper and lower walls (3A1,3A2) of the female element (3A) and is minimal for the third portion (10C) of the compressible assembly (10) situated between the extreme edge (2A3) of the male part (2A) and the bottom of the female part (3A).
  18. Covering comprising at least two cast slabs (5,6) connected together by at least one joint (1) according to any one of claims 1 to 17.
  19. Covering according to claim 18, characterized in that the space (11) adjacent to the upper edge of the covering situated between two opposite profiles (2,3) is filled with a flexible joint (12,29), in which a support piece (30) is advantageously introduced.
  20. Method of producing a joint (1) between two adjacent slabs (5,6), said joint (1) being a joint according to any one of claims 1 to 17, in which the solid and compressible assembly (10) is maintained in a compressed state when adjacent slabs (5,6) are cast, and during a sufficient period to ensure minimal setting of the slabs (5,6).
  21. Method according to claim 20, in which the solid and compressible assembly (10) remains at least partially compressed after the setting of the castable material or its shrinkage.
EP05447116A 2004-05-18 2005-05-18 Joint structure for plates made out of mouldable material Not-in-force EP1598479B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05447116A EP1598479B1 (en) 2004-05-18 2005-05-18 Joint structure for plates made out of mouldable material

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04447125 2004-05-18
EP04447125A EP1598478A1 (en) 2004-05-18 2004-05-18 Joint structure for plates made out of mouldable material
EP05447116A EP1598479B1 (en) 2004-05-18 2005-05-18 Joint structure for plates made out of mouldable material

Publications (2)

Publication Number Publication Date
EP1598479A1 EP1598479A1 (en) 2005-11-23
EP1598479B1 true EP1598479B1 (en) 2007-05-09

Family

ID=35446015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05447116A Not-in-force EP1598479B1 (en) 2004-05-18 2005-05-18 Joint structure for plates made out of mouldable material

Country Status (1)

Country Link
EP (1) EP1598479B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2027340B1 (en) 2006-06-12 2015-05-13 Hengelhoef Concrete Joints Manufacturing NV Floor provided with structural joint

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2130859A (en) * 1936-03-30 1938-09-20 Translode Joint Company Road expansion joint
US3276334A (en) * 1961-04-05 1966-10-04 Cecil E Rhodes Joint filler strip and method of making sealed joint
US4657430A (en) * 1983-01-24 1987-04-14 Marionneaux John L Roadway and roadway expansion joint
BE1012984A3 (en) * 1998-04-29 2001-07-03 Eurosteel Sa STRUCTURE FOR PAVING SEAL MATERIAL moldable.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2027340B1 (en) 2006-06-12 2015-05-13 Hengelhoef Concrete Joints Manufacturing NV Floor provided with structural joint
EP2930269B1 (en) 2006-06-12 2019-02-27 Hengelhoef Concrete Joints NV Structural joint

Also Published As

Publication number Publication date
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