FR2629845A1 - Dividing joints for concrete floors - Google Patents

Dividing joints for concrete floors Download PDF

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Publication number
FR2629845A1
FR2629845A1 FR8804838A FR8804838A FR2629845A1 FR 2629845 A1 FR2629845 A1 FR 2629845A1 FR 8804838 A FR8804838 A FR 8804838A FR 8804838 A FR8804838 A FR 8804838A FR 2629845 A1 FR2629845 A1 FR 2629845A1
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France
Prior art keywords
groove
deformable
rule
walls
concrete
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Granted
Application number
FR8804838A
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French (fr)
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FR2629845B1 (en
Inventor
Claude Cautain
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COUVRANEUF
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COUVRANEUF
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Priority to FR8804838A priority Critical patent/FR2629845B1/en
Publication of FR2629845A1 publication Critical patent/FR2629845A1/en
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Publication of FR2629845B1 publication Critical patent/FR2629845B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/12Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • E04F15/14Construction of joints, e.g. dividing strips
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/02Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/10Packing of plastic or elastic materials, e.g. wood, resin
    • E01C11/106Joints with only prefabricated packing; Packings therefor

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

The joint is intended to be inserted into a hole 3 located in the concrete and comprises a straight piece 6 made of a plastic material which forms a single body with the side fins 14, 15 which are elastically deformable and are inclined upwards and which is divided into two walls 8, 9 delimiting between them a groove 10 in which a deformable cord 5 is housed. According to the invention, the lower edge of the rigid plastic straight piece 6 is shaped into a corner 7 which converges downwards in order to match the faces 16, 17 of the hole 3, against which faces the fins 14, 15 are deformed when the joint 2 is inserted, in order to prevent chalking from rising back, and the deformable cord 5 is made of a flexible plastic material and is extruded with the straight piece 6 so as to make a single body with the two upper walls 8, 9 thereof without completely filling the groove 10 which they delimit.

Description

Joint de fractiomeent en pour sols en béton.  Fractional joint in for concrete floors.

La présente invention concerne un joint de fractionnement pour sols en béton. The present invention relates to a fractionation joint for concrete floors.

Les dallages en béton présentent toujours des variations dimensionnelles qui peuvent etre dues au retrait hydraulique, aux variations thermiques, aux tassements... Concrete pavements always have dimensional variations which can be due to hydraulic shrinkage, thermal variations, settlement ...

Pour éviter la formation de fissures dues à ces contraintes, le dallage doit être fractionné par des joints, organisés suivant le type de résultats attendus : joints de construction, de retrait, de dilatation, d'isolement...  To avoid the formation of cracks due to these stresses, the paving must be divided by joints, organized according to the type of expected results: construction joints, shrinkage, expansion, insulation ...

Le nombre, la répartition, les dimensionnements sont déterminés en fonction de la destination de l'ouvrage et, pour les dallages en situation extérieure, des conditions climatiques. The number, distribution, sizing are determined according to the destination of the structure and, for pavements in an outdoor situation, climatic conditions.

Le joint de l'invention est plus spécialement destiné à constituer un joint de retrait également connu sous le nom de. joint transversal, étant donné qu'il est réalisé en général perpendiculairement à la bande de coulage du dallage. The seal of the invention is more specifically intended to constitute a withdrawal seal also known as. transverse joint, since it is generally carried out perpendicular to the paving strip.

Une première technique connue consiste à scier dans la chape, avant consolidation du béton, une saignée et à remplir celle-ci avec un mastic en élastomère. La mise en oeuvre de cette technique est longue et s'accomode mal de l'humidité des supports. A first known technique consists in sawing in the screed, before consolidation of the concrete, a groove and in filling it with an elastomer putty. The implementation of this technique is long and poorly accommodates the humidity of the supports.

Une deuxième technique connue consiste également à scier dans la chape en béton une saignée, à inserer dans celle-ci, une règle en matière plastique creuse ayant des ailettes déformables inclinées vers le haut et à remplir avec du mastic la rainure que cette règle présente en haut pour affleurer le niveau du sol. Cette deuxième technique améliore la première, mais sa mise en oeuvre est toujours relativement coOteuse en raison du temps nécessaire pour le bourrage du mastic. A second known technique also consists in sawing a groove in the concrete screed, inserting therein a hollow plastic rule having deformable fins inclined upwards and filling with groove the groove that this rule presents in high to be flush with the ground level. This second technique improves the first, but its implementation is always relatively expensive due to the time required for stuffing the sealant.

La présente invention vise à perfectionner cette deuxième technique en supprimant le temps de pose du mastic et en annihilant les remontées de laitance suintant du béton et parvenant au fond de la saignée. The present invention aims to improve this second technique by eliminating the time required to put the sealant and by annihilating the rebounds of laitance seeping from the concrete and reaching the bottom of the groove.

Pour atteindre ce but, le joint de fractionnement selon l'invention comprend, comme le deuxième joint connu, une règle en matière plastique qui fait corps avec des ailettes latérales déformables élastiquement et inclinées vers le haut et qui se divise en deux parois délimitant entre elles une rainure dans laquelle est logée un cordon déformable. To achieve this goal, the fractionation joint according to the invention comprises, like the second known joint, a plastic rule which is integral with elastically deformable lateral fins inclined upward and which is divided into two walls delimiting between them a groove in which is housed a deformable cord.

L'invention réside alors en ce que
- le bord inférieur de la règle en matière plastique rigide est conformé en coin convergeant vers le bas pour calibrer les faces de la saignée, faces contre lesquelles les ailettes se déforment lors de la pénétration du joint afin d'empêcher les remontées de laitance,
- et le cordon déformable est en matière plastique souple et venu d'extrusion avec la règle pour faire corps avec les deux parois supérieures de celle-ci sans remplir complètement la rainure qu'elles délimitent.
The invention then resides in that
- the lower edge of the rigid plastic rule is shaped as a corner converging downward to calibrate the faces of the groove, faces against which the fins deform during penetration of the joint in order to prevent the rebirth of laitance,
- And the deformable cord is made of flexible plastic material and comes from extrusion with the ruler to become one with the two upper walls of the latter without completely filling the groove which they delimit.

Divers autres caractéristiques et avantages de l'invention ressortent d'ailleurs de la description détaillée qui suit. Various other characteristics and advantages of the invention will also emerge from the detailed description which follows.

Une forme de réalisation de l'objet de l'invention est représentée, à titre d'exemple non limitatif, sur le dessin annexé. An embodiment of the object of the invention is shown, by way of nonlimiting example, in the accompanying drawing.

Sur ce dessin
- la figure 1 est une coupe à très grande échelle d'un joint de retrait conforme à l'invention.
On this drawing
- Figure 1 is a section on a very large scale of a withdrawal joint according to the invention.

- la figure 2 est une coupe partielle d'une dalle en béton dans laquelle sont posés de tels joints dont un est représenté à échelle moindre, mais en agrandissement tout de même. - Figure 2 is a partial section of a concrete slab in which are placed such joints, one of which is shown on a smaller scale, but in enlargement all the same.

Pour mettre en place dans une dalle en béton 1 (figure 2), des joints de retrait 2 (figure 1), il faut
- d'abord scier dans la dalle, alors que le béton est pris mais non définitivement consolidé, des saignées 3 s'étendant dans une direction perpendiculaire à la direction de coulée de cette dalle,
- et ensuite introduire un joint 2 dans chaque saignée en forçant jusqu'à affleurer la surface apparente de la dalle.
To install shrinkage joints 2 (figure 1) in a concrete slab 1 (figure 2),
- first saw in the slab, while the concrete is set but not definitively consolidated, grooves 3 extending in a direction perpendicular to the direction of casting of this slab,
- and then introduce a joint 2 in each groove, forcing until it is flush with the apparent surface of the slab.

Comme le montre la figure 1, le joint 2 comporte un profilé 4 et un cordon 5 faisant corps l'un avec l'autre, le premier étant relativement rigide tandis que le deuxième est souple. Avantageusement, le joint 2 est fabriqué par extrusion simultanée de deux matières plastiques différentes se soudant lors de la traversée de la filière. Par exemple, le profilé 4 peut être en polychlorure de vinyle rigide et le cordon 5 peut être en polychrorure de vinyle souple. As shown in Figure 1, the seal 2 has a profile 4 and a bead 5 integral with one another, the first being relatively rigid while the second is flexible. Advantageously, the seal 2 is produced by simultaneous extrusion of two different plastic materials which are welded during the crossing of the die. For example, the profile 4 can be made of rigid polyvinyl chloride and the bead 5 can be made of flexible polyvinyl chloride.

Le profilé 4 comporte une règle 6 dont la bordure inférieure est conformée en coin de calibrage 7 pointé vers le bas. Profile 4 includes a rule 6, the lower edge of which is shaped as a calibration wedge 7 pointing downwards.

La règle se divise et forme deux parois supérieures 8 et 9 parallèles l'une à l'autre et délimitant entre elles une rainure 10. The ruler divides and forms two upper walls 8 and 9 parallel to each other and delimiting between them a groove 10.

Le cordon 5 est logé dans cette rainure et adhère aux parois 8, 9 ; il affleure les bords supérieurs de celles-ci, mais il laisse subsister un vide 11 en-dessous et entre des parties convergentes 12, 13 reliant ces parois à la règle. The cord 5 is housed in this groove and adheres to the walls 8, 9; it is flush with the upper edges of these, but it leaves a void 11 below and between converging parts 12, 13 connecting these walls to the rule.

La règle présente enfin-en saillie sur les cotés, des ailettes 14, 15 inclinées vers le haut, c'est-à-dire dans la direction des parois 8, 9 lorsque ladite règle est verticale chaque ailette s'amincit vers son extrémité libre pour posséder une certaine flexibilité, grâce à laquelle elle peut se déformer élastiquement. The ruler has finally-protruding on the sides, fins 14, 15 inclined upward, that is to say in the direction of the walls 8, 9 when said rule is vertical each fin tapers towards its free end to have a certain flexibility, thanks to which it can deform elastically.

Lors de l'introduction d'un joint 2 dans une saignée 3 (figure 2), le coin 7 calibre celle-ci en intervenant sur ses faces 16, 17 et les ailettes 14, 15 se déforment en s'appliquant sur lesdites faces. Puis, les parties convergentes 12, 13 en prenant appui sur les bords de la saignée se déforment légèrement pour que les parois 8, 9 soient en contact parfait avec les faces 16, 17. When a seal 2 is introduced into a groove 3 (FIG. 2), the wedge 7 calibrates the latter by acting on its faces 16, 17 and the fins 14, 15 are deformed by applying to said faces. Then, the converging parts 12, 13, bearing on the edges of the groove, deform slightly so that the walls 8, 9 are in perfect contact with the faces 16, 17.

Pendant cette déformation, le cordon 5 se comprime élastiquement et maintient le contact des parois avec les faces de la saignée lors du retrait ou de la dilatation du béton. Les ailettes 14, 15 et le coin 7 forment un barrage s'opposant à la remontée de la laitance qui suinte du béton et parvient dans le fond 18 de la saignée où elle reste piégée. During this deformation, the bead 5 is compressed elastically and maintains the contact of the walls with the faces of the groove during the withdrawal or expansion of the concrete. The fins 14, 15 and the corner 7 form a dam opposing the rise of the laitance which oozes from the concrete and reaches the bottom 18 of the groove where it remains trapped.

Claims (2)

REVENDICATIONS 1.- Joint de fractionnement pour sols en béton destiné à être inséré dans une saignée (3) sciée dans le béton (1) et comprenant une règle (6) en matière plastique qui fait corps avec des ailettes latérales (14, 15) déformables élastiquement et inclinées vers le haut et qui se divise en deux parois (8, 9) délimitant entre elles une rainure (10) dans laquelle est logé un cordon déformable (5), caractérisé en ce que 1.- Fractionation joint for concrete floors intended to be inserted into a groove (3) sawn into concrete (1) and comprising a rule (6) made of plastic material which forms a body with deformable lateral fins (14, 15) elastically and inclined upwards and which divides into two walls (8, 9) delimiting between them a groove (10) in which is housed a deformable cord (5), characterized in that - le bord inférieur de la règle (6) en matière plastique rigide est conformé en coin (7) convergeant vers le bas pour calibrer les faces (16, 17) de la saignée (3), faces contre lesquelles les ailettes (14, 15) se déforment lors de la pénétration du joint (2) afin d'empêcher les remontées de laitance, - The lower edge of the rule (6) made of rigid plastic is shaped as a wedge (7) converging downwards to calibrate the faces (16, 17) of the groove (3), faces against which the fins (14, 15 ) are deformed when the seal (2) penetrates in order to prevent the rebirth of laitance, - et le cordon déformable (5) est en matière plastique souple et venu d'extrusion avec la règle (6) pour faire corps avec les deux parois supérieures (8, 9) de celle-ci sans remplir complètement la rainure (10) qu'elles délimitent. - And the deformable cord (5) is made of flexible plastic material and comes from extrusion with the rule (6) to form a body with the two upper walls (8, 9) thereof without completely filling the groove (10) that 'they delimit. 2.- Joint selon la revendicaiton 1, caractérisé en ce que les parois parallèles (8, 9) délimitant la rainure -(10) sont reliées à la règle (6) par des parties convergentes déformables (12, 13).  2.- Joint according to claim 1, characterized in that the parallel walls (8, 9) delimiting the groove - (10) are connected to the rule (6) by deformable converging parts (12, 13).
FR8804838A 1988-04-12 1988-04-12 FRACTIONATION JOINT FOR CONCRETE FLOORS Expired - Lifetime FR2629845B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8804838A FR2629845B1 (en) 1988-04-12 1988-04-12 FRACTIONATION JOINT FOR CONCRETE FLOORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8804838A FR2629845B1 (en) 1988-04-12 1988-04-12 FRACTIONATION JOINT FOR CONCRETE FLOORS

Publications (2)

Publication Number Publication Date
FR2629845A1 true FR2629845A1 (en) 1989-10-13
FR2629845B1 FR2629845B1 (en) 1991-11-22

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Family Applications (1)

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FR8804838A Expired - Lifetime FR2629845B1 (en) 1988-04-12 1988-04-12 FRACTIONATION JOINT FOR CONCRETE FLOORS

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700345A1 (en) * 1993-01-12 1994-07-13 Lafarge Nouveaux Materiaux A method of constructing a soil incorporating a wire as a guidewire and accessory for precise placement of the wire under the ground level.
WO1999055986A1 (en) * 1998-04-28 1999-11-04 Vexcolt (Uk) Limited Movement joint
CN104480828A (en) * 2014-11-25 2015-04-01 福州皇家地坪有限公司 Water-permeable concrete expansion joint structure and construction method thereof
US9359761B2 (en) * 2014-02-22 2016-06-07 Ductilcrete Slab Systems, Llc Joint filling strip

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426658A (en) * 1967-01-26 1969-02-11 Albert J Frederickson Contraction joint for pavements
DE2538412A1 (en) * 1975-08-29 1977-03-03 Kaeser & Co Kg Concrete floor and composition flooring expansion joint wedge - with hollow part through composite layer with elastic bracing cross arms
FR2534329A1 (en) * 1982-10-07 1984-04-13 Selves Jean Pierre Profiled strip forming a dividing joint for a floor or wall covering.
DE8614067U1 (en) * 1986-05-23 1986-09-18 Olbrich, Paul, 3000 Hannover Expansion joint strip

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426658A (en) * 1967-01-26 1969-02-11 Albert J Frederickson Contraction joint for pavements
DE2538412A1 (en) * 1975-08-29 1977-03-03 Kaeser & Co Kg Concrete floor and composition flooring expansion joint wedge - with hollow part through composite layer with elastic bracing cross arms
FR2534329A1 (en) * 1982-10-07 1984-04-13 Selves Jean Pierre Profiled strip forming a dividing joint for a floor or wall covering.
DE8614067U1 (en) * 1986-05-23 1986-09-18 Olbrich, Paul, 3000 Hannover Expansion joint strip

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700345A1 (en) * 1993-01-12 1994-07-13 Lafarge Nouveaux Materiaux A method of constructing a soil incorporating a wire as a guidewire and accessory for precise placement of the wire under the ground level.
WO1994016151A1 (en) * 1993-01-12 1994-07-21 Lafarge Nouveaux Materiaux (S.A.) Method for building a floor with a built-in wire such as a guide wire, and accessory for accurately positioning the wire beneath the floor
WO1999055986A1 (en) * 1998-04-28 1999-11-04 Vexcolt (Uk) Limited Movement joint
GB2353302A (en) * 1998-04-28 2001-02-21 Vexcolt Movement joint
AU748628B2 (en) * 1998-04-28 2002-06-06 Vexcolt (Uk) Limited Movement joint
GB2353302B (en) * 1998-04-28 2002-11-13 Vexcolt Movement joint
US6574933B1 (en) * 1998-04-28 2003-06-10 Vexcolt (Uk) Limited Movement joint
US9359761B2 (en) * 2014-02-22 2016-06-07 Ductilcrete Slab Systems, Llc Joint filling strip
CN104480828A (en) * 2014-11-25 2015-04-01 福州皇家地坪有限公司 Water-permeable concrete expansion joint structure and construction method thereof
CN104480828B (en) * 2014-11-25 2016-09-07 福州皇家地坪有限公司 Permeable terrace expanded joint structure and construction method thereof

Also Published As

Publication number Publication date
FR2629845B1 (en) 1991-11-22

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