FR2657808A1 - Spun concrete products - Google Patents

Spun concrete products Download PDF

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Publication number
FR2657808A1
FR2657808A1 FR9001287A FR9001287A FR2657808A1 FR 2657808 A1 FR2657808 A1 FR 2657808A1 FR 9001287 A FR9001287 A FR 9001287A FR 9001287 A FR9001287 A FR 9001287A FR 2657808 A1 FR2657808 A1 FR 2657808A1
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FR
France
Prior art keywords
product
discs
spun
grooves
concrete
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.)
Granted
Application number
FR9001287A
Other languages
French (fr)
Other versions
FR2657808B1 (en
Inventor
Savard-Chambard Paul
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.)
RECTOR SA
Original Assignee
RECTOR 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
Application filed by RECTOR SA filed Critical RECTOR SA
Priority to FR9001287A priority Critical patent/FR2657808B1/en
Publication of FR2657808A1 publication Critical patent/FR2657808A1/en
Application granted granted Critical
Publication of FR2657808B1 publication Critical patent/FR2657808B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
    • B28B11/0863—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for profiling, e.g. making grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/048—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with a plurality of saw blades
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated

Abstract

Spun or extruded product made of concrete, characterised in that the surface is intended to be in contact with concrete cast on site and has transverse or lengthwise grooves of uniform shape. The invention also relates to the device for obtaining such grooves. This comprises discs (4) driven in rotation about an axis (5) in order to form grooves (7) whose width is equal to the thickness of the discs chosen, which are separated by the value given to the separation of the said discs.

Description

PUITS E BETON
La presente invention concerne des produits filés en béton du type dalles alvéolées. Ces produits sont généralement destinés å la réalisation de grands éléments tels que dalles de plancher. Ces produits sont parfois complétés par une table de compression en beton coulé sur place.CONCRETE WELL
The present invention relates to concrete spun products of the hollow core type. These products are generally intended for the realization of large elements such as floor tiles. These products are sometimes supplemented by a compression table made of concrete poured on site.

A cet effet, il est nécessaire de donner à ces produits un état de surface permettant d'assurer le monolithique entre la partie préfabriquée et celle coulée sur place. To this end, it is necessary to give these products a surface condition making it possible to ensure the monolithic between the prefabricated part and that cast on site.

Il a déjâ été proposé de réaliser un état de surface rugueux a l'aide d'un roui eau comportant des dents ou d'une strieuse mais l'état de surface ainsi obtenu n'est pas régulier ni dans sa forme, ni dans sa répartition, ce qui ne permet pas de prévoir de maniere exacte quel sera la surface de contact entre les deux bétons et la résistance au glissement a 1 'interface, ne dépasse pas généralement 2.5kg/cm2.  It has already been proposed to produce a rough surface state using a water rash comprising teeth or a stripper but the surface state thus obtained is not regular either in its shape or in its distribution, which does not make it possible to predict in an exact manner what will be the contact surface between the two concretes and the slip resistance at the interface, does not generally exceed 2.5 kg / cm 2.

La présente invention a pour but de proposer un produit filé en béton dont l'état de la a face superieure permet de résoudre ces problèmes et améliore les résultats, ainsi que le dispositif permettant d'atteindre ce but. The present invention aims to provide a concrete spun product whose state of the upper face solves these problems and improves the results, as well as the device for achieving this goal.

A cet effet, le produit filé en béton selon l'invention est caractérisé en ce que la surface destinée a entre en contact avec d'autres éléments présente des rainures de forme réguliere transversales. To this end, the spun concrete product according to the invention is characterized in that the surface intended to come into contact with other elements has grooves of regular transverse shape.

Par une telle réalisation il est possible de déterminer de manière exacte la largeur et la profondeur de chaque rainure et la répartition de celles-ci qu'il faut obtenir afin que le produit fini présente un état de surface global avec des discontinuités suffisantes pour eviter le glissement. By such an embodiment it is possible to determine exactly the width and the depth of each groove and the distribution of these which must be obtained so that the finished product has an overall surface condition with sufficient discontinuities to avoid the slip.

La présente invention concerne également le dispositif permettant de rainurer la surface drun produit filé en béton, caractérisé en ce qu'il comporte des disques entraXnés en rotation autour drun axe, ledit dispositif étant déplaçable transversalement par rapport au produit file afin de former des rainures de largeur égale l'épaisseur des disques choisis, ecartes de la valeur donnee à l'écartement desdits disques et dont la profondeur est determinée par le positionnement de lraxe par rapport au produit filé. The present invention also relates to the device making it possible to groove the surface of a spun concrete product, characterized in that it comprises disks driven in rotation about an axis, said device being movable transversely relative to the spun product in order to form grooves of width equals the thickness of the selected discs, deviations from the value given to the spacing of said discs and the depth of which is determined by the positioning of the axis relative to the spun product.

A la figure unique, on voit schématiquement l'installation 1 telle qu une fileuse ou une extrudeuse qui permet la fabrication d'un produit filé en béton. De manière connue en soi, le produit 2 est un parallélépipède rectangle d'une longueur de l'ordre de 100 mètres, d'une largeur d'environ 1.20 mètre et d'une hauteur généralement comprise entre 10 et 40 centimètres, environ. In the single figure, the installation 1 is schematically seen such as a spinner or an extruder which allows the manufacture of a spun concrete product. In a manner known per se, the product 2 is a rectangular parallelepiped with a length of the order of 100 meters, a width of about 1.20 meters and a height generally between 10 and 40 centimeters, approximately.

Le long du parcours suivi par la fileuse ou l'extrudeuse qui génère le produit, on prévoit un dispositif 3 destiné à assurer selon 1 'invention la finition de la surface supérieure du produit filé ou extrude. Along the path followed by the spinner or the extruder which generates the product, provision is made for a device 3 intended to ensure, according to the invention, the finishing of the upper surface of the spun or extruded product.

Ce dispositif comporte des disques 4 pouvant être entraînes en rotation autour d'un axe commun 5. L'axe 5 est parallèle a la direction 6 de déplacement du produit â la sortie de l'installation 1, les disques étant ainsi perpendiculaires audit produit. This device comprises discs 4 which can be rotated about a common axis 5. The axis 5 is parallel to the direction 6 of movement of the product at the outlet of the installation 1, the discs thus being perpendicular to said product.

Le béton, en sortie de fileuse ou d'extrudeuse étant très compact, il est possible de faire agir le dispositif soit immédiatement après filage ou extrusion, soit après prise du béton. The concrete, at the exit of the spinner or extruder being very compact, it is possible to make the device act either immediately after spinning or extrusion, or after setting of the concrete.

On entraÇne les disques 4 en rotation et on déplace le dispositif perpendiculairement au produit. The disks 4 are rotated and the device is moved perpendicular to the product.

Les disques 4 sont positionnés de manière à créer dans le béton des rainures 7 ou crans d'une profondeur réglable. The discs 4 are positioned so as to create grooves 7 or notches in the concrete of an adjustable depth.

Grâce à un tel dispositif, on réalise des rainures 7 d'une largeur égale à l'épaisseur des disques, écartées de la valeur de l'écartement desdits disques et d'une profondeur déterminée par le réglage de la hauteur de l'axe 5 par rapport à la surface du produit filé. Et on obtient un aspect de surface permettant des résistances au glissement supérieures à 2.5 kg/cm2 et pouvant atteindre au moins 4 kg/cm2.  With such a device, grooves 7 are made of a width equal to the thickness of the discs, spaced from the value of the spacing of said discs and of a depth determined by adjusting the height of the axis 5 relative to the surface of the spun product. And we obtain a surface appearance allowing slip resistance higher than 2.5 kg / cm2 and being able to reach at least 4 kg / cm2.

On peut ainsi en choisissant les disques et leurs positions sur l'axe obtenir la largeur et l'écartement souhaités pour les rainures 7. It is thus possible by choosing the discs and their positions on the axis to obtain the desired width and spacing for the grooves 7.

Le dispositif est déplacé afin de rainurer la largeur du produit. L'opération de rainurage peut se faire de deux manières différentes. The device is moved in order to groove the width of the product. The grooving operation can be done in two different ways.

On peut par exemple prévoir le dispositif 3 à une distance de la machine 1 telle que le produit ait acquis la consistance désirée, puis on déplace le dispositif 3 afin de rainurer le produit filé, puis, lorsque la fileuse a avancé de la longueur du dispositif 3, on déplace celui-ci de nouveau afin de rainurer une nouvelle bande de produit filé. Le dispositif assure le rainurage au cours du deplacement transversal dans un sens puis dans l'autre, comme indiqué en tirets sur le dessin. One can for example provide the device 3 at a distance from the machine 1 such that the product has acquired the desired consistency, then the device 3 is moved in order to groove the spun product, then, when the spinner has advanced the length of the device 3, it is moved again in order to groove a new strip of spun product. The device grooves during the transverse displacement in one direction then in the other, as indicated in dashes on the drawing.

Il est également possible de rainurer le produit filé dans le sens longitudinal en continu dans la mesure ou l'axe support des disques est disposé perpendiculairement au sens de filage. It is also possible to groove the spun product in the longitudinal direction continuously as the support axis of the discs is arranged perpendicular to the spinning direction.

La mise en oeuvre d'un dispositif comportant plusieurs disques permet d'usiner le produit filé plus rapidement par larges bandes. The implementation of a device comprising several discs makes it possible to machine the spun product more quickly by wide strips.

Le dispositif 3 pourra être monté sur un chariot automoteur ou encore sur un chariot tracté par l'installation de filage suivant le sens du crantage. The device 3 can be mounted on a self-propelled cart or on a cart towed by the spinning installation in the direction of the notching.

On a pu réaliser a titre d'exemple non limitatif un crantage avec une serie de disques d'épaisseur 3 mm. Les crans sont profonds de 3 mm et espacés de 18 mm (le pas est de 21 mm). It was possible, by way of nonlimiting example, to make a notch with a series of discs 3 mm thick. The notches are 3 mm deep and 18 mm apart (the pitch is 21 mm).

L'etat de surface obtenu présente une résistance au glissement de l'ordre de 4kg/cm2  The surface finish obtained has a slip resistance of the order of 4 kg / cm2

Claims (5)

REVENDICATIONS 1. Produit filé ou extrudé en béton, caractérisé en ce que la surface destinée à être en contact avec le beton coulé sur place présente des rainures de forme régulière transversales ou longitudinales. 1. Spun or extruded concrete product, characterized in that the surface intended to be in contact with the concrete poured on site has grooves of regular transverse or longitudinal shape. 2. Produit selon la revendication 1, caractérisé en ce que les rainures sont de largeur égales et régulièrement réparties. 2. Product according to claim 1, characterized in that the grooves are of equal width and regularly distributed. 3. Dispositif pour rainurer la surface d'un produit filé ou extrudé en béton, caractérise en ce qu'il comporte des disques (4), entrasses en rotation autour d'un axe (5), afin de former des rainures (7) de largeur égale à l'épaisseur des disques choisis, écartées de la valeur donnée à l'écartement desdits disques, dont la profondeur est déterminée par le positionnement de 1'axe (5) par rapport à la surface du produit. 3. Device for grooving the surface of a spun or extruded concrete product, characterized in that it comprises discs (4), cranks in rotation about an axis (5), in order to form grooves (7) of width equal to the thickness of the selected discs, spaced from the value given to the spacing of said discs, the depth of which is determined by the positioning of the axis (5) relative to the surface of the product. 4. Dispositif selon la revendication 3 caractérisé en ce qu'il se déplace transversalement au produit filé afin de former des rainures (7) transversales. 4. Device according to claim 3 characterized in that it moves transversely to the spun product to form grooves (7) transverse. 5. Dispositif selon la revendication 3 caractérisé en ce qu'il se déplace en continu longitudinalement au produit file afin de former des rainures (7) longitudinales.  5. Device according to claim 3 characterized in that it moves continuously longitudinally to the product file to form grooves (7) longitudinal.
FR9001287A 1990-02-05 1990-02-05 CONCRETE WIRE PRODUCTS. Expired - Fee Related FR2657808B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9001287A FR2657808B1 (en) 1990-02-05 1990-02-05 CONCRETE WIRE PRODUCTS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9001287A FR2657808B1 (en) 1990-02-05 1990-02-05 CONCRETE WIRE PRODUCTS.

Publications (2)

Publication Number Publication Date
FR2657808A1 true FR2657808A1 (en) 1991-08-09
FR2657808B1 FR2657808B1 (en) 1993-08-06

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FR9001287A Expired - Fee Related FR2657808B1 (en) 1990-02-05 1990-02-05 CONCRETE WIRE PRODUCTS.

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FR (1) FR2657808B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714689A1 (en) * 1993-12-30 1995-07-07 Rector Sa Machine to create notched surface on concrete sections

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR369494A (en) * 1905-06-30 1907-01-12 Hans Bayer Concrete ceiling
FR421872A (en) * 1909-11-01 1911-03-07 Walter Tuerk Hollow reinforced concrete floor
GB142526A (en) * 1919-07-07 1920-05-13 Stanley Philip Henman Improvements in concrete floors and roofs
CH212825A (en) * 1940-08-26 1940-12-31 Cattori Lorenzo Method of manufacturing hollow ceilings.
DE932177C (en) * 1942-08-21 1955-08-25 August Trachte Device for pressing grooves
DE2054356A1 (en) * 1969-11-19 1971-06-03 Haller, Dipl Ing Hans,Wendl, Dipl Ing Erwm Graz (Osterreich) Finished part and process for the manufacture of the finished part
FR2151437A5 (en) * 1971-06-29 1973-04-20 Saret
FR2244890A2 (en) * 1973-09-26 1975-04-18 Bulte Jacques Precast concrete floor beams - contain longitudinal voids and lower reinforcement and are overlain by concrete
GB1395303A (en) * 1971-08-06 1975-05-21 Paton W D Concrete finishing method and machine
GB2024093A (en) * 1978-07-03 1980-01-09 Willy Ag Maschf Apparatus for grooving a rectangular section clay extrusion
DE3245171A1 (en) * 1982-12-07 1984-06-07 Fa. B. Feldhaus, 4518 Bad Laer Process for producing artificial stones

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR369494A (en) * 1905-06-30 1907-01-12 Hans Bayer Concrete ceiling
FR421872A (en) * 1909-11-01 1911-03-07 Walter Tuerk Hollow reinforced concrete floor
GB142526A (en) * 1919-07-07 1920-05-13 Stanley Philip Henman Improvements in concrete floors and roofs
CH212825A (en) * 1940-08-26 1940-12-31 Cattori Lorenzo Method of manufacturing hollow ceilings.
DE932177C (en) * 1942-08-21 1955-08-25 August Trachte Device for pressing grooves
DE2054356A1 (en) * 1969-11-19 1971-06-03 Haller, Dipl Ing Hans,Wendl, Dipl Ing Erwm Graz (Osterreich) Finished part and process for the manufacture of the finished part
FR2151437A5 (en) * 1971-06-29 1973-04-20 Saret
GB1395303A (en) * 1971-08-06 1975-05-21 Paton W D Concrete finishing method and machine
FR2244890A2 (en) * 1973-09-26 1975-04-18 Bulte Jacques Precast concrete floor beams - contain longitudinal voids and lower reinforcement and are overlain by concrete
GB2024093A (en) * 1978-07-03 1980-01-09 Willy Ag Maschf Apparatus for grooving a rectangular section clay extrusion
DE3245171A1 (en) * 1982-12-07 1984-06-07 Fa. B. Feldhaus, 4518 Bad Laer Process for producing artificial stones

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CAHIERS DU CENTRE SCIENTIFIQUE ET TECHNIQUE DU BATIMENT, no. 245, décembre 1983, pages 1-7; L. CHABREL: "3ème additif à l'avis technique préalable sur le plancher Webo porteur" *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714689A1 (en) * 1993-12-30 1995-07-07 Rector Sa Machine to create notched surface on concrete sections

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Publication number Publication date
FR2657808B1 (en) 1993-08-06

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