EP0510486A1 - Pierre composée resp. plaque composée - Google Patents

Pierre composée resp. plaque composée Download PDF

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Publication number
EP0510486A1
EP0510486A1 EP92106391A EP92106391A EP0510486A1 EP 0510486 A1 EP0510486 A1 EP 0510486A1 EP 92106391 A EP92106391 A EP 92106391A EP 92106391 A EP92106391 A EP 92106391A EP 0510486 A1 EP0510486 A1 EP 0510486A1
Authority
EP
European Patent Office
Prior art keywords
stone
composite
plate
panel according
natural stone
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
EP92106391A
Other languages
German (de)
English (en)
Other versions
EP0510486B1 (fr
Inventor
Horst Schneider
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.)
Betonwerk Rieder GmbH
Heinrich Klostermann GmbH and Co KG
Betonwerk Godelmann KG
Original Assignee
Fiege & Bertoli & Co Kg GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27202418&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0510486(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE4211799A external-priority patent/DE4211799C2/de
Application filed by Fiege & Bertoli & Co Kg GmbH filed Critical Fiege & Bertoli & Co Kg GmbH
Priority to AT9292106391T priority Critical patent/ATE105350T1/de
Publication of EP0510486A1 publication Critical patent/EP0510486A1/fr
Application granted granted Critical
Publication of EP0510486B1 publication Critical patent/EP0510486B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • 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
    • E01C5/00Pavings made of prefabricated single units
    • E01C5/22Pavings made of prefabricated single units made of units composed of a mixture of materials covered by two or more of groups E01C5/008, E01C5/02 - E01C5/20 except embedded reinforcing materials
    • 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
    • E01C2201/00Paving elements
    • E01C2201/04Paving elements consisting of natural stones and a binder

Definitions

  • the present invention relates to a composite stone or a composite panel as a covering for walkways and. Like. With the features of the preamble of claim 1.
  • a composite stone or a composite panel with the features of the preamble of claim 1 is known from EP 0 053 092 B1.
  • a two-component adhesive is used as an adhesive between the natural stone portion and the concrete portion, which is applied in a very thin layer to the underside of the natural stone portion.
  • the invention has for its object to provide a composite stone or a composite panel of the type specified, which has a particularly good adhesive strength between the natural stone portion and the concrete portion.
  • the adhesive strength between the natural stone portion and the concrete portion is of decisive importance for whether such a composite stone can replace an equivalent stone consisting of one material.
  • the connection between the two materials must be designed in such a way that the connection does not break due to stress or thermal stress, which inevitably would result in destruction of the stone or the slab, since in such a case the lower part of the concrete is no longer together would absorb and transfer appropriate loads to the upper natural stone portion, but instead only the upper natural stone portion would, which would lead to an immediate break due to its small thickness.
  • the invention provides two measures: firstly, mechanical interlocking (doweling effect) is provided between the natural stone component and the adhesive mortar component, and secondly, the special adhesive mortar based on cement-synthetic resin is used for adhesion by gluing between the two different ones Materials brought about.
  • the mechanical interlocking or latching is achieved by recesses running at an oblique angle to the underside of the natural stone slab, into which the adhesive mortar penetrates, so that when the adhesive mortar has hardened, it essentially fills the recesses. There are then undercuts between adhesive mortar and natural stone, which make it difficult to separate the two materials at the interface when applying opposing tensile forces.
  • these inclined recesses increase the adhesive surface on the underside of the natural stone slab, which further improves the adhesive effect. It is essential that the recesses run obliquely to the underside of the natural stone slab, so that the undercuts mentioned result because, in contrast to recesses which are made at right angles to the underside, the interface between the materials acts at an angle and not parallel to the direction of the attacking tensile forces.
  • both a mechanical interlocking effect and an adhesion effect are achieved by curing the adhesive mortar.
  • the adhesive mortar-concrete interface is less critical anyway, since both materials are applied fresh to fresh and bond or harden together.
  • the adhesive mortar is applied to the underside of the natural stone portion so that it essentially fills the recesses. Although the concrete itself does not essentially penetrate into the recesses, the fact that the adhesive mortar and concrete form a solid bond anyway due to their similar composition and the joint setting and hardening, a condition is achieved as if the concrete is directly with the natural stone portion would interlock over the recesses.
  • the adhesive mortar layer which is considerably thicker than a pure two-component adhesive layer, shrinks to an increased extent, but this does not lead to detachment effects on the natural stone component due to the interlocking.
  • the concrete portion is poured onto the underside of the natural stone portion after it has been provided with the adhesive mortar mentioned above.
  • the adhesive mortar contains both an inorganic binder (cement) and an organic binder (synthetic resin). After setting or hardening, both agents ensure a firm bond between the two different materials, whereby it should be emphasized that, due to the high density and low absorbency of the natural stone material, the organic binder in the adhesive mortar is of essential importance in order to achieve a sufficient adhesive effect. It is only by adding the organic binder to the adhesive mortar in connection with the mechanical interlocking measures described above that it is possible to create a composite stone that is sufficiently resilient and can be used instead of the pure natural stone.
  • the depressions are expediently designed as grooves or as bores.
  • the underside of the natural stone portion has as many depressions as possible in order to increase the toothing effect that can be achieved.
  • limits are set here for practical reasons and for reasons of cost. It has proven to be advantageous in terms of the toothing effect and the amount of work involved to provide 2 to 3 recesses for every running 10 cm natural stone slab. Grooves are preferred because they are easier to manufacture than holes and provide larger undercut areas.
  • the depressions all run parallel to one another and only extend in one direction over the underside of the natural stone slab.
  • the depressions are not arranged crosswise, ie in two intersecting directions.
  • An embodiment of the invention which has a plurality of depressions, is characterized in that the depressions of the one stone or plate half are arranged inclined in opposite directions to those of the other stone or plate half.
  • the depressions also run only in one direction over the underside of the natural stone slab, but the depressions of one half have an opposite tendency to the depressions of the other half.
  • a trapezoid arises between adjacent recesses on the underside of the natural stone slab, i.e. a dovetail-shaped undercut that ensures particularly good interlocking and supports the concrete's adhesion to natural stone.
  • this embodiment is particularly well suited for cases in which high shear forces can occur from both sides, since half of the stone or the plate has depressions in the form of continuous or interrupted grooves or bores pointing in this direction at an acute angle.
  • the composite stone according to the invention or the composite plate according to the invention are produced in such a way that the corresponding plate-shaped natural stone portion is provided with the depressions on its underside.
  • the corresponding grooves are cut obliquely into the underside of the natural stone slab.
  • the natural stone slab is then placed in a suitable shape, with the underside facing upwards.
  • the adhesive mortar is then applied, whereupon the mold is poured with concrete.
  • This can be a conventional concrete used for corresponding artificial stones or artificial slabs. After the concrete has solidified, the mold is opened and the finished stone is removed. This is then ready for use after appropriate post-processing, cleaning, etc.
  • the adhesive mortar used consists of the usual additives (sand), water and binders, cement being used in combination with an organic binder (synthetic resin).
  • the binder matrix formed from inorganic and organic constituents provides the required adhesive strength, in particular in the case in question here, in which a natural stone with low absorbency (low porosity) is to be bonded to concrete.
  • Water-emulsifiable epoxy resins (ECC) are used as the preferred organic binder.
  • ECC Water-emulsifiable epoxy resins
  • the epoxy resins used in ECC technology are based on the cement mechanism, so they can practically always be processed if the cement allows it. A subsequent loss of adhesion due to effects on the bandage level, as is the case with certain thermoplastics, is ruled out.
  • thermoplastics for example acrylates or butadiene styrene
  • Reaction partners are the hardener systems from epoxy technology. Depending on the formulation, these materials enable the advantages of thermoplastics and thermosets to be bundled without having their disadvantages.
  • the proportion of synthetic resin in the adhesive mortar is preferably 20-30% of Cement weight of the adhesive mortar.
  • the layer of adhesive mortar applied is expediently 3-5 mm thick.
  • the contact surface which later forms the binding plane is preferably additionally activated according to the invention.
  • silanes are used, which on the one hand combine with the natural stone, but on the other hand contain reactive groups that combine with the plastic that is contained in the mortar below.
  • this underside is provided with a bilayer-reactive silane as a primer.
  • the stone or the plate in the concrete portion is provided with a laterally projecting and surrounding concrete base.
  • the base is expediently arranged in the lower region of the stone or the plate and has the purpose of providing a corresponding joint specification. This considerably simplifies the laying of the composite block or the corresponding composite panel designed according to the invention.
  • a reduced edge pressure of the granite portion is hereby achieved, since the base prevents the granite portions from adjacent stones or slabs from coming into contact with one another during laying.
  • the depressions in the two outer thirds of the slab-shaped natural stone portion are preferably arranged in the opposite direction to the depressions in the other third.
  • Three grooves in a third are particularly preferred.
  • the desired mechanical Interlocking effect achieved in the two outer thirds ie the areas in which the greatest release voltages occur.
  • the depressions In order to allow the adhesive mortar to penetrate into the depressions, their width corresponds to at least 1.5 to 2 times the diameter of the largest grain of the additive of the adhesive mortar.
  • the depressions preferably have a maximum width of 1 cm.
  • the depths of the depressions correspond to a maximum of one third of the thickness of the slab-shaped natural stone, so as not to endanger its resilience.
  • the composite block designed according to the invention or the composite panel designed according to the invention has reinforcement arranged in the concrete portion.
  • the reinforcement is expediently connected to the plate-shaped natural stone portion via at least one reinforcement holder, the reinforcement holder engaging in at least one recess.
  • This arrangement achieves two things: firstly, the reinforcement is securely held on the natural stone portion so that the concrete pouring process can run smoothly, and secondly, the reinforcement holder serves as a tie rod that anchors the reinforcement in the natural stone portion and thus further increases the natural stone portion-concrete composite effect.
  • the corresponding tie rod effect is achieved in that the reinforcement holder with two oppositely directed legs engages in two adjacent oppositely inclined depressions. The opposite inclination of the recesses counteracts removal of the reinforcement holder from the recesses.
  • a reinforcement holder is preferably provided in the respective outer third of the composite block or the composite panel.
  • the reinforcement holder can be made of plastic, for example.
  • a further improvement in the composite effect is achieved in that the reinforcement holders are connected to one another, for example by means of fleeces etc.
  • the composite stone 1 shown in FIGS. 1 and 2 has an approximately square shape with an edge length of 30 cm and a height of 8 cm.
  • the stone has an upper granite portion 2 and a lower concrete portion 3.
  • the granite part has a height of 2 cm, while the concrete part has a height of 6 cm.
  • the granite portion 2 is provided with 6 grooves 5 running parallel to one another, which extend upwards from the underside.
  • the grooves have a width of approximately 8 mm and an average depth of approximately 1 cm. They extend obliquely upwards, the three grooves on the left side of the stone being inclined in opposite directions to the three grooves on the right side of the stone, but both types of groove pointing towards the center of the stone. This results in undercuts.
  • a dovetail shape is created between the two central grooves.
  • An adhesive mortar layer (not shown) is provided between the concrete part 3 and the granite part 2, which completely fills the grooves, so that there is a good toothing effect between the two parts.
  • Figure 2 shows an illustration of the underside of the granite portion 2 of the stone. It can be seen that the grooves 5 run through from one side to the other side. To increase the toothing effect, grooves could also be arranged in a direction offset by 90 °; however, this would require additional work that is not absolutely necessary for reasons of adhesive strength.
  • Figure 3 shows a side view of another embodiment of a composite stone.
  • This stone essentially corresponds to the stone of FIGS. 1 and 2, but has in its concrete part 3 a base 6 which runs around in the lower area and which defines the joint dimension and one large edge pressure of the granite parts of neighboring stones prevented.
  • the base has a width of 1 - 2 mm. The distance from the top of the stone to the top of the base is 3 cm.
  • a granite slab with the dimensions shown above was sawn.
  • the oblique grooves shown and described were then milled on the underside of the granite slab, the grooves on one side being milled in the opposite direction to the grooves on the other side.
  • the granite slab with the grooves was then placed in a suitable shape with the underside facing upwards.
  • the underside of the plate was then covered with a 3 - 5 mm thick layer of adhesive mortar that filled the recesses.
  • the adhesive mortar consisted of a commercially available emulsifiable epoxy resin, cement, sand and water.
  • the proportion of synthetic resin in the adhesive mortar was 20-30% of the cement weight of the adhesive mortar. Sand and water were added in the usual proportions.
  • the mold was filled with concrete in the not yet hardened state, a concrete used for such artificial stones being used. After the concrete hardened, the mold was removed. The stone was then ready for use after possible post-treatments, such as deburring, cleaning.
  • the composite stone or the composite panel can be provided with a reinforcement, which is housed in the concrete portion.
  • the Reinforcement is usually provided in the corresponding tensile zone of the stone or slab.
  • the preferred height of the stone or slab is 8, 10 and 12 cm.
  • the natural stone portion is always 2 cm high, while the concrete portion varies in height depending on the load requirements, i.e. has one of 6, 8 or 10 cm.
  • FIG. 4 shows a further embodiment of a composite stone in a side view.
  • This composite stone also consists of a natural stone part 2 and a concrete part 3. Between the natural stone portion 2 and the concrete portion 3 there is an adhesive mortar layer 7 (ECC adhesive mortar), which is shown in FIG. 5 with an increased thickness.
  • ECC adhesive mortar adhesive mortar
  • the adhesive mortar completely fills the corresponding recesses on the underside 4 of the natural stone portion 2 and also forms a continuous layer between the flat section of the underside 4 and the concrete portion 3.
  • three recesses 5 in the form of grooves are provided in the two outer thirds of the composite stone. These grooves are inclined upwards and outwards. This achieves a corresponding toothing effect as in the embodiments in FIGS. 1 to 3.
  • Figure 5 shows in partial section a fourth embodiment of a composite stone.
  • This composite stone is also composed of a plate-shaped natural stone part 2, an adhesive mortar layer 7 and a concrete part 3.
  • the adhesive mortar layer fills recesses 5, 8, which are provided on the underside 4 of the natural stone portion, as in the embodiment of FIG. 4 in the two outer thirds.
  • the depressions extend a third, however, not in the same direction as each other, but in the outer area of the stone two depressions 8 are provided, which extend in opposite directions upwards and to the left and right in the drawing. Another depression in this outer third is inclined upwards and outwards.
  • a reinforcement 10 made of conventional structural steel, which is composed of longitudinal bars and cross bars.
  • This reinforcement is connected via a reinforcement holder 9 in the outer third of the stone to the natural stone portion 2, the reinforcement holder 9 also acting as a tie rod since it is anchored in the corresponding recesses 8, 8.
  • the reinforcement holder 9 is made of plastic or iron and has two diverging legs 11 which engage resiliently in the two oppositely running depressions 8, 8. The diverging legs 11 are held in the natural stone portion 2 by the oppositely inclined depressions 8, 8.
  • the two legs 11 open into a curved main part 12, the free legs of which end in two clamp elements 13, which resiliently enclose a corresponding rod of the reinforcement 10.
  • the embodiment of the reinforcement holder shown and described here is only exemplary; other suitable embodiments can also be used. It is only essential that the reinforcement holder is anchored in the natural stone portion and clamped onto the respective reinforcement bar. As shown in FIG. 5, this anchoring can be achieved with the aid of two diverging legs which engage in two diverging depressions.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)
EP19920106391 1991-04-26 1992-04-14 Pierre composée resp. plaque composée Expired - Lifetime EP0510486B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT9292106391T ATE105350T1 (de) 1991-04-26 1992-04-14 Verbundstein bzw. verbundplatte.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE4113622 1991-04-26
DE4113622 1991-04-26
DE4120914 1991-06-25
DE4120914 1991-06-25
DE4211799A DE4211799C2 (de) 1991-04-26 1992-04-08 Verbundstein oder Verbundplatte und Verfahren zur Herstellung
DE4211799 1992-04-08

Publications (2)

Publication Number Publication Date
EP0510486A1 true EP0510486A1 (fr) 1992-10-28
EP0510486B1 EP0510486B1 (fr) 1994-05-04

Family

ID=27202418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920106391 Expired - Lifetime EP0510486B1 (fr) 1991-04-26 1992-04-14 Pierre composée resp. plaque composée

Country Status (1)

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EP (1) EP0510486B1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277541A (en) * 1993-05-01 1994-11-02 Inax Corp Decorative concrete slab; method of moulding
EP0684340A1 (fr) * 1994-05-27 1995-11-29 COMPOSANTS TARNAIS BETON S.A., Société Anonyme Procédé de fabrication d'éléments de revêtement découpés dans une dalle composité et élément de revêtement obtenu
WO1998024976A1 (fr) * 1995-05-11 1998-06-11 Jean Brignoli Materiau composite - pierre naturelle, granit ou marbre et beton
EP2345776A1 (fr) * 2010-01-15 2011-07-20 Karl-Heinz Peter Scholz Revêtement de sol doté de plaques de pierre intégrales et son procédé de fabrication
CN111777371A (zh) * 2020-07-24 2020-10-16 黑龙江省中信路桥材料有限公司 一种仿石材pc砖的制备工艺
CN113831078A (zh) * 2021-09-14 2021-12-24 四川蜗牛新材料有限公司 一种固废综合利用生产的复合生态地铺石及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR572741A (fr) * 1923-01-08 1924-06-12 Pavés et dalles en composition de caoutchouc et procédé de leur fabrication
DE943614C (de) * 1952-12-10 1956-05-24 Aschenbrenner Fa Franz Fussbodenplatte mit im Querschnitt vorzugsweise schwalbenschwanzfoermigen Verankerungsnuten auf der Unterseite
DE2129341A1 (de) * 1971-06-12 1973-01-04 Mueller Karl Betonplatte fuer einen fussbodenbelag
AT349512B (de) * 1976-09-09 1979-04-10 Wiener Baustoff Und Betonstein Mehrschichtiges bauelement fuer flaechenbelaege
CH631509A5 (en) * 1979-02-23 1982-08-13 Marzio Maurino Paving slab, in particular for road offlets
EP0176471A2 (fr) * 1984-09-26 1986-04-02 Granit-Shop Maurino Revêtement préfabriqué et dalles d'appui pour surfaces, places, rues et bâtiments
DE3818834A1 (de) * 1988-06-03 1989-12-14 Wilhelm Engelbach Fussbodenklinker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR572741A (fr) * 1923-01-08 1924-06-12 Pavés et dalles en composition de caoutchouc et procédé de leur fabrication
DE943614C (de) * 1952-12-10 1956-05-24 Aschenbrenner Fa Franz Fussbodenplatte mit im Querschnitt vorzugsweise schwalbenschwanzfoermigen Verankerungsnuten auf der Unterseite
DE2129341A1 (de) * 1971-06-12 1973-01-04 Mueller Karl Betonplatte fuer einen fussbodenbelag
AT349512B (de) * 1976-09-09 1979-04-10 Wiener Baustoff Und Betonstein Mehrschichtiges bauelement fuer flaechenbelaege
CH631509A5 (en) * 1979-02-23 1982-08-13 Marzio Maurino Paving slab, in particular for road offlets
EP0176471A2 (fr) * 1984-09-26 1986-04-02 Granit-Shop Maurino Revêtement préfabriqué et dalles d'appui pour surfaces, places, rues et bâtiments
DE3818834A1 (de) * 1988-06-03 1989-12-14 Wilhelm Engelbach Fussbodenklinker

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277541A (en) * 1993-05-01 1994-11-02 Inax Corp Decorative concrete slab; method of moulding
EP0684340A1 (fr) * 1994-05-27 1995-11-29 COMPOSANTS TARNAIS BETON S.A., Société Anonyme Procédé de fabrication d'éléments de revêtement découpés dans une dalle composité et élément de revêtement obtenu
FR2720416A1 (fr) * 1994-05-27 1995-12-01 Composants Tarnais Beton Sa Procédé de fabrication d'éléments de revêtement découpés dans une dalle composite et élément de revêtement obtenu.
WO1998024976A1 (fr) * 1995-05-11 1998-06-11 Jean Brignoli Materiau composite - pierre naturelle, granit ou marbre et beton
EP2345776A1 (fr) * 2010-01-15 2011-07-20 Karl-Heinz Peter Scholz Revêtement de sol doté de plaques de pierre intégrales et son procédé de fabrication
EP3502372A1 (fr) * 2010-01-15 2019-06-26 Karl-Heinz Peter Scholz Revêtement de sol à dalles en pierre incorporées ainsi que son procédé de fabrication
CN111777371A (zh) * 2020-07-24 2020-10-16 黑龙江省中信路桥材料有限公司 一种仿石材pc砖的制备工艺
CN113831078A (zh) * 2021-09-14 2021-12-24 四川蜗牛新材料有限公司 一种固废综合利用生产的复合生态地铺石及其制备方法

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Publication number Publication date
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