FR2674171A1 - Method of manufacturing moulded (cast) elements made of concrete, mould for the implementation of this method and products obtained - Google Patents
Method of manufacturing moulded (cast) elements made of concrete, mould for the implementation of this method and products obtained Download PDFInfo
- Publication number
- FR2674171A1 FR2674171A1 FR9100824A FR9100824A FR2674171A1 FR 2674171 A1 FR2674171 A1 FR 2674171A1 FR 9100824 A FR9100824 A FR 9100824A FR 9100824 A FR9100824 A FR 9100824A FR 2674171 A1 FR2674171 A1 FR 2674171A1
- Authority
- FR
- France
- Prior art keywords
- molds
- concrete
- mold
- storage
- transport
- 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.)
- Withdrawn
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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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
-
- 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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/022—Means for inserting reinforcing members into the mould or for supporting them in the mould
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
- B28B7/348—Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
- B65D81/107—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using blocks of shock-absorbing material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
Procédé de fabrication d'éléments moulés en béton,
moule pour la mise en oeuvre de ce procédé
et produits obtenus
La présente invention concerne le domaine de la réalisation d'éléments préfabriqués en béton, armé ou non, et a pour objet un procédé de fabrication d'éléments moulés en béton.Process for manufacturing molded concrete elements,
mold for implementing this process
and products obtained
The present invention relates to the field of the production of precast concrete elements, reinforced or not, and relates to a method of manufacturing molded concrete elements.
L'invention a également pour objet un moule pour la mise en oeuvre de ce procédé, ainsi que les produits obtenus. The invention also relates to a mold for the implementation of this process, as well as the products obtained.
Actuellement, les éléments préfabriqués en béton, armé ou non, sont généralement moulés dans des moules à armature en bois et à peau en contreplaqué ou en tôle métallique ou dans des moules entièrement métalliques, les inserts éventuels, en particulier des armatures en acier, étant disposés dans lesdits moules lors du coulage du béton ou suspendus dans ces derniers au moyen d'une armature accessoire. Currently, the precast concrete elements, reinforced or not, are generally molded in molds with wooden frame and skin in plywood or sheet metal or in entirely metallic molds, the possible inserts, in particular steel frames, being arranged in said molds when pouring concrete or suspended in the latter by means of an accessory frame.
Ces procédés de fabrication connus permettent l'obtention de pièces dont le fini de surface est généralement parfait, mais présente, cependant, l'inconvénient de nécessiter, pour le transport et le stockage, la prévision d'éléments de protection sur les faces apparentes afin d'éviter toute détérioration de surface. These known manufacturing methods make it possible to obtain parts whose surface finish is generally perfect, but has, however, the drawback of requiring, for transport and storage, the provision of protective elements on the visible surfaces in order avoid any surface deterioration.
Ces éléments de protection entraînent un coût de production plus important, du fait qu'ils doivent être réalisés et mis en place séparément, ce qui augmente d'autant le temps de main d'oeuvre. These protective elements entail a higher production cost, owing to the fact that they have to be produced and installed separately, which consequently increases the labor time.
En outre, dans le cas d'utilisation de certains éléments comme supports, notamment de pièces métalliques peintes ou laquées, il est nécessaire d'interposer entre les éléments de support et les pièces à supporter des bandes en caoutchouc ou analogues, destinées à éviter les détériorations de la peinture ou de la laque. In addition, when certain elements are used as supports, in particular painted or lacquered metal parts, it is necessary to interpose between the support elements and the parts to be supported with rubber bands or the like, intended to avoid deterioration of paint or lacquer.
La présente invention a pour but de pallier ces inconvénients. The present invention aims to overcome these drawbacks.
Elle a, en effet, pour objet un procédé de fabrication d'éléments moulés en béton caractérisé en ce qu il consiste essentiellement à utiliser des moules en matière synthétique expansée, formant support des armatures et un emballage de protection pour le transport et le stockage et à couler dans ces moules le béton à mouler. It has, in fact, for its object a process for manufacturing molded concrete elements, characterized in that it consists essentially in using molds in expanded synthetic material, forming a support for the reinforcements and a protective packaging for transport and storage and to pour the concrete to be molded into these molds.
L'invention a également pour objet un dispositif pour la mise en oeuvre de ce procédé caractérisé en ce qu'il est constitué par un moule en matière synthétique expansée, en particulier en polystyrène, ledit moule formant simultanément une protection pour le transport et le stockage, ainsi que, éventuellement, un élément intermédiaire de protection pour une pièce supportée. The invention also relates to a device for implementing this process, characterized in that it consists of a mold made of expanded synthetic material, in particular of polystyrene, said mold simultaneously forming a protection for transport and storage. , as well as, optionally, an intermediate protection element for a supported part.
Enfin, l'invention a également pour objet des produits obtenus par application de ce procédé au moyen du dispositif de mise en oeuvre, qui sont caractérisés en ce qu'ils sont munis d'une enveloppe de protection pour le transport et le stockage, constituée par le moule. Finally, the invention also relates to products obtained by application of this process by means of the implementation device, which are characterized in that they are provided with a protective envelope for transport and storage, consisting by the mold.
L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence aux dessins schématiques annexés, dans lesquels
la figure 1 est une vue en plan d'un dispositif pour la mise en oeuvre du procédé conforme à l'invention et d'un élément ainsi obtenu
la figure 2 est une vue en élévation latérale du dispositif suivant la figure 1
la figure 3 est une vue en élévation latérale d'une citerne montée sur des supports obtenus par mise en oeuvre du procédé conforme à l'invention et pourvue d'un capot également obtenu par mise en oeuvre de ce procédé, et
la figure 4 est une vue en élévation latérale et en coupe du capot.The invention will be better understood from the following description, which relates to a preferred embodiment, given by way of nonlimiting example, and explained with reference to the appended schematic drawings, in which
Figure 1 is a plan view of a device for implementing the method according to the invention and an element thus obtained
Figure 2 is a side elevational view of the device according to Figure 1
FIG. 3 is a side elevation view of a tank mounted on supports obtained by implementing the method according to the invention and provided with a cover also obtained by implementing this method, and
Figure 4 is a side elevational view in section of the cover.
Conformément à l'invention et comme le montrent plus particulièrement, à titre d'exemple, les figures 1 et 2 des dessins annexés, le procédé de fabrication d'éléments moulés en béton consiste essentiellement à utiliser des moules 1 en matière synthétique expansée, formant support des armatures 2 et un emballage de protection pour le transport et le stockage et à couler dans ces moules 1 le béton à mouler 3. According to the invention and as shown more particularly, by way of example, Figures 1 and 2 of the accompanying drawings, the method of manufacturing concrete molded elements consists essentially of using molds 1 of expanded synthetic material, forming support for reinforcements 2 and protective packaging for transport and storage and to pour the concrete to be molded into these molds 1.
Le dispositif pour la mise en oeuvre de ce procédé est constitué par un moule 1 en matière synthétique expansée, en particulier en polystyrène, ledit moule 1 formant simultanément une protection pour le transport et le stockage, ainsi que, éventuellement, un élément intermédiaire de protection pour une pièce supportée. The device for implementing this process consists of a mold 1 made of expanded synthetic material, in particular of polystyrene, said mold 1 simultaneously forming a protection for transport and storage, as well as, optionally, an intermediate protection element for a supported part.
L'utilisation de moules 1 en matière synthétique expansée, notamment en polystyrène, permet une fabrication en grande série de tels moules, contrairement aux moules connus à ce jour et, en outre, le mode de fabrication même de ces moules permet une grande diversité de formes et, en particulier, la réalisation de surfaces complexes et/ou pourvues de motifs décoratifs. Ainsi, les moules conformes à l'invention peuvent notamment être utilisés pour la fabrication d'éléments décoratifs, les moules 1 assurant la protection de leurs surfaces pendant leur transport et leur stockage. The use of molds 1 made of expanded synthetic material, in particular made of polystyrene, allows mass production of such molds, unlike the molds known to date and, moreover, the very manufacturing method of these molds allows a great diversity of forms and, in particular, the production of complex surfaces and / or provided with decorative patterns. Thus, the molds according to the invention can in particular be used for the manufacture of decorative elements, the molds 1 ensuring the protection of their surfaces during their transport and storage.
Dans un tel cas, les moules 1 sont avantageusement pourvus, au niveau de certains plans verticaux et/ou horizontaux, de rainures d'affaiblissement permettant leur démontage par découpe suivant ces rainures. Ainsi, lors de l'utilisation des éléments moulés, il suffit de casser les moules au niveau des rainures pour dégager lesdits éléments, les parties de moules étant alors jetées ou recyclées. In such a case, the molds 1 are advantageously provided, at the level of certain vertical and / or horizontal planes, with weakening grooves allowing their disassembly by cutting along these grooves. Thus, when using the molded elements, it suffices to break the molds at the level of the grooves to release said elements, the mold parts then being discarded or recycled.
Selon une caractéristique de l'invention, et comme le montrent les figures 1, 2 et 4 des dessins annexés, les moules 1 peuvent avantageusement être pourvus de moyens 4 de préhension, qui sont fixés comme inserts dans les moules 1 lors de la réalisation de ces derniers et qui sont partiellement en saillie à l'intérieur desdits moules 1 afin de coopérer avec le béton 3 après coulage de ce dernier, ces moyens 4 pouvant coopérer, en outre, avec les armatures 2, en particulier pour leur maintien dans une position prédéterminée dans les moules 1. According to a characteristic of the invention, and as shown in Figures 1, 2 and 4 of the accompanying drawings, the molds 1 can advantageously be provided with gripping means 4, which are fixed as inserts in the molds 1 during the production of the latter and which are partially projecting inside said molds 1 in order to cooperate with the concrete 3 after pouring of the latter, these means 4 being able to cooperate, in addition, with the reinforcements 2, in particular for maintaining them in a position predetermined in molds 1.
Une telle coopération entre les moyens 4 et les armatures 2 peut facilement être obtenue, soit par liaison directe entre lesdits moyens 4 et armatures 2, soit par liaison au moyen de liens suivant des techniques connues dans le ferraillage des bétons.Such cooperation between the means 4 and the reinforcements 2 can easily be obtained, either by direct connection between said means 4 and reinforcements 2, or by connection by means of links according to techniques known in the reinforcement of concrete.
De tels moyens de préhension 4 sont particulièrement intéressants lors de la manutention des produits obtenus par mise en oeuvre du procédé conforme à l'invention et peuvent servir, en outre, de moyens de fixation à d'autres éléments ou pièces lors de leur utilisation. Such gripping means 4 are particularly advantageous during the handling of the products obtained by implementing the method according to the invention and can also serve as means of attachment to other elements or parts during their use.
Conformément à une autre caractéristique de l'invention, les produits obtenus par mise en oeuvre de ce procédé peuvent également consister en une combinaison du moule 1 et du béton moulé 3 avec son armature 2, le moule 1 formant alors un élément intermédiaire de protection de la surface d'une pièce destinée à coopérer avec ledit produit obtenu. According to another characteristic of the invention, the products obtained by implementing this process can also consist of a combination of the mold 1 and of the molded concrete 3 with its frame 2, the mold 1 then forming an intermediate protection element for the surface of a part intended to cooperate with said product obtained.
Ainsi, à titre d'exemple, la figure 4 des dessins annexés représente une citerne 5 reposant sur deux berceaux 6 analogues aux éléments représentés aux figures 1 et 2 et munie à sa partie supérieure d'un capot 7 d'accès aux vannes et analogues. Dans ce mode de réalisation, les berceaux 6 sont avantageusement constitués par la combinaison du moule 1 et du béton 3 avec son armature 2, le moule 1 en polystyrène expansé formant, au niveau du contact entre les berceaux 6 et la citerne 5, une cou che de protection de la surface de ladite citerne 5 contre une détérioration par contact avec le béton 3. Thus, by way of example, Figure 4 of the accompanying drawings shows a tank 5 resting on two cradles 6 similar to the elements shown in Figures 1 and 2 and provided at its upper part with a cover 7 for access to valves and the like . In this embodiment, the cradles 6 are advantageously constituted by the combination of the mold 1 and the concrete 3 with its frame 2, the mold 1 of expanded polystyrene forming, at the level of the contact between the cradles 6 and the tank 5, a neck che for protecting the surface of said tank 5 against deterioration by contact with concrete 3.
En outre, les moyens 4 de préhension des berceaux sont utilisés, après mise en place de la citerne 5, pour la fixation de cette dernière sur lesdits berceaux 6 au moyen de sangles 8 ou analogues entourant ladite citerne 5 ou coopérant avec des boucles prévues à cet effet sur ladite citerne 5. In addition, the means 4 for gripping the cradles are used, after the tank 5 has been put in place, for fixing the latter to the said cradles 6 by means of straps 8 or the like surrounding said tank 5 or cooperating with loops provided at this effect on said tank 5.
Le capot 7, prévu en partie supérieure de la citerne 5, est avantageusement pourvu de moyens de préhension 9 dans sa partie supérieure, ces moyens 9 servant simultanément à la fixation à des pattes 10 de la citerne 5 et présente sur ses faces d'application contre la citerne 5, ainsi que sur ses faces externes, une partie de son moule 11, la partie du moule 11 correspondant à l'intérieur du capot 7 et une bande périphérique extérieure étant enlevées par découpe suivant des rainures d'affaiblissement. The cover 7, provided in the upper part of the tank 5, is advantageously provided with gripping means 9 in its upper part, these means 9 serving simultaneously for fixing to the legs 10 of the tank 5 and present on its application faces against the tank 5, as well as on its external faces, part of its mold 11, the part of the mold 11 corresponding to the inside of the cover 7 and an external peripheral strip being removed by cutting along weakening grooves.
Selon une autre caractéristique de l'invention, le béton utilisé peut avantageusement être un béton allégé, alvéolaire, éventuellement coloré dans la masse. Un tel béton allégé et coloré permet, d'une part, une grande variété d'utilisations due à sa facilité d'adaptation à différentes couleurs et, d'autre part, un allégement considérable des pièces obtenues, qui deviennent plus faciles à manutentionner. According to another characteristic of the invention, the concrete used can advantageously be a lightweight concrete, cellular, optionally colored in the mass. Such lightened and colored concrete allows, on the one hand, a wide variety of uses due to its ease of adaptation to different colors and, on the other hand, considerable lightening of the parts obtained, which become easier to handle.
Grâce à l'invention, il est possible de réaliser des éléments en béton, armé ou non, présentant un fini de surface parfait et pouvant être munis de motifs décoratifs fidèlement reproductibles. En effet, les moules en matière synthétique expansée, de préférence en polystyrène, peuvent être réalisés en très grande série, tout en autorisant une grande fidélité de reproduction. Thanks to the invention, it is possible to produce concrete elements, reinforced or not, having a perfect surface finish and which can be provided with faithfully reproducible decorative patterns. In fact, the molds in expanded synthetic material, preferably in polystyrene, can be produced in very large series, while allowing great fidelity of reproduction.
En outre, la manutention et le stockage de ces éléments sont facilités du fait de la prévision, d'une part, de moyens de préhension et, d'autre part, du main tien du moule comme élément de protection pendant ces opérations, une facilité supplémentaire pouvant être obtenue par la prévision d'une réalisation en béton allégé. In addition, the handling and storage of these elements is facilitated due to the provision, on the one hand, of gripping means and, on the other hand, of the hand of the mold as a protective element during these operations, an ease additional that can be obtained by planning a light concrete construction.
Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention. Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9100824A FR2674171A1 (en) | 1991-01-18 | 1991-01-18 | Method of manufacturing moulded (cast) elements made of concrete, mould for the implementation of this method and products obtained |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9100824A FR2674171A1 (en) | 1991-01-18 | 1991-01-18 | Method of manufacturing moulded (cast) elements made of concrete, mould for the implementation of this method and products obtained |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2674171A1 true FR2674171A1 (en) | 1992-09-25 |
Family
ID=9409028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9100824A Withdrawn FR2674171A1 (en) | 1991-01-18 | 1991-01-18 | Method of manufacturing moulded (cast) elements made of concrete, mould for the implementation of this method and products obtained |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2674171A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2760995A1 (en) * | 1997-03-19 | 1998-09-25 | Stradal Sa | Manufacture of concrete components e.g. paving slabs, pillars border edges, or small walls |
| ES2121486A1 (en) * | 1994-04-08 | 1998-11-16 | Frutos Del Caz Mariano De | Mould for producing prefabricated concrete components |
| ES2245854A1 (en) * | 2002-10-25 | 2006-01-16 | Luca Toncelli | Mould for a chipboard production system includes external reinforcement including bottom adjustable supports and peripheral ribs |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1427026A (en) * | 1964-11-27 | 1966-02-04 | Applications of epoxy resins and expanded polystyrene to architectural surfaces and volumes | |
| US3329749A (en) * | 1964-07-13 | 1967-07-04 | Marshall Stein | Method of making a combination mold and packaging container |
| FR1521651A (en) * | 1967-03-10 | 1968-04-19 | Approvisionnement En Metaux So | Assembly and securing of a tank, tank or other such capacity in its intended location |
| US3592436A (en) * | 1968-03-28 | 1971-07-13 | Wilbert Inc | Burial vault mold with handle positioning means |
| US3599928A (en) * | 1968-11-06 | 1971-08-17 | Gardner H Strong | Discardable mold form |
| US3609935A (en) * | 1969-05-01 | 1971-10-05 | Delmar L Thomas | Permanent form for precast tilt-up concrete modules and process |
| FR2232418A1 (en) * | 1973-06-08 | 1975-01-03 | Hev Hochbautechnik Entwicklung | Cast concrete components - made in one-off foam material moulds having master pattern generated mould cavity |
| GB1441334A (en) * | 1972-10-20 | 1976-06-30 | Steinsvik K R | Method for prodocing prefabricated concrete articles |
| GB1472765A (en) * | 1973-05-11 | 1977-05-04 | A Betong Ab | Railway tracks |
| FR2446704A1 (en) * | 1979-01-19 | 1980-08-14 | Monestier Claude | Moulding building blocks with cast strata - of conventional colloidal concrete, opt. using expanded polystyrene for mould wall, insulation layer and filler components |
-
1991
- 1991-01-18 FR FR9100824A patent/FR2674171A1/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3329749A (en) * | 1964-07-13 | 1967-07-04 | Marshall Stein | Method of making a combination mold and packaging container |
| FR1427026A (en) * | 1964-11-27 | 1966-02-04 | Applications of epoxy resins and expanded polystyrene to architectural surfaces and volumes | |
| FR1521651A (en) * | 1967-03-10 | 1968-04-19 | Approvisionnement En Metaux So | Assembly and securing of a tank, tank or other such capacity in its intended location |
| US3592436A (en) * | 1968-03-28 | 1971-07-13 | Wilbert Inc | Burial vault mold with handle positioning means |
| US3599928A (en) * | 1968-11-06 | 1971-08-17 | Gardner H Strong | Discardable mold form |
| US3609935A (en) * | 1969-05-01 | 1971-10-05 | Delmar L Thomas | Permanent form for precast tilt-up concrete modules and process |
| GB1441334A (en) * | 1972-10-20 | 1976-06-30 | Steinsvik K R | Method for prodocing prefabricated concrete articles |
| GB1472765A (en) * | 1973-05-11 | 1977-05-04 | A Betong Ab | Railway tracks |
| FR2232418A1 (en) * | 1973-06-08 | 1975-01-03 | Hev Hochbautechnik Entwicklung | Cast concrete components - made in one-off foam material moulds having master pattern generated mould cavity |
| FR2446704A1 (en) * | 1979-01-19 | 1980-08-14 | Monestier Claude | Moulding building blocks with cast strata - of conventional colloidal concrete, opt. using expanded polystyrene for mould wall, insulation layer and filler components |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2121486A1 (en) * | 1994-04-08 | 1998-11-16 | Frutos Del Caz Mariano De | Mould for producing prefabricated concrete components |
| FR2760995A1 (en) * | 1997-03-19 | 1998-09-25 | Stradal Sa | Manufacture of concrete components e.g. paving slabs, pillars border edges, or small walls |
| ES2245854A1 (en) * | 2002-10-25 | 2006-01-16 | Luca Toncelli | Mould for a chipboard production system includes external reinforcement including bottom adjustable supports and peripheral ribs |
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