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EP0585665B1 - Zweischichtige Platte auf der Basis von wassergehärteten und/oder luftgehärteten Bindemitteln zum Aufbau von Doppelböden - Google Patents

Zweischichtige Platte auf der Basis von wassergehärteten und/oder luftgehärteten Bindemitteln zum Aufbau von Doppelböden Download PDF

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Publication number
EP0585665B1
EP0585665B1 EP93112773A EP93112773A EP0585665B1 EP 0585665 B1 EP0585665 B1 EP 0585665B1 EP 93112773 A EP93112773 A EP 93112773A EP 93112773 A EP93112773 A EP 93112773A EP 0585665 B1 EP0585665 B1 EP 0585665B1
Authority
EP
European Patent Office
Prior art keywords
weight
fibres
panel
layer
water
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.)
Expired - Lifetime
Application number
EP93112773A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0585665A1 (de
Inventor
Cosimo Catalano
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.)
Hiross International Corp BV
Original Assignee
Hiross International Corp BV
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 Hiross International Corp BV filed Critical Hiross International Corp BV
Publication of EP0585665A1 publication Critical patent/EP0585665A1/de
Application granted granted Critical
Publication of EP0585665B1 publication Critical patent/EP0585665B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/024—Sectional false floors, e.g. computer floors
    • E04F15/02405—Floor panels
    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
    • B28B1/16—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted for producing layered articles
    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B28B1/522—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster

Definitions

  • the present invention relates to a plate based on water-hardened and / or air-hardened binders for the construction of raised floors, which consist of layers with different weight percentages of fibers.
  • panel modules with the standard dimensions have been used to build raised floors 60 x 60 x 304 cm used, which are composed of solid support plates and on the a covering is glued on, which fulfills the function of a wear layer.
  • raised floors means floating floors in modular construction, which creates a void between the original underground and the new one Form tread.
  • the cavities can serve as service channels for different Applications such as for power supply, telephone cabling, Information transfer, room air conditioning and. Like., serve.
  • carrier plates are made from different materials, for example from pressboard, Plasterboard or made of concrete reinforced with fibers.
  • the carrier plates are usually commercially available with suitable dimensions, which are also suitable for the production of concrete slabs are used.
  • the known plates are shaped in that a relatively thin, watery one Suspension of cement and fibers is made by filtering on a moving Mesh is processed into an inconsistent film with a thickness of 1 mm to 2 mm, the in turn is caught on a roller at the end of the net. This layer created in this way is wound on the roller to produce a thickness of about 15 mm. The material the roller is then trimmed and unrolled again.
  • DE-A1-23 65 161 describes a multi-layer component with three made of plaster and fibrous materials formed layers became known, of which the two outer layers one same fiber weight percentage and the inner layer a higher weight percentage of fibers having.
  • the gypsum curing time is achieved by vacuuming the fibers staggered plaster paste reduced.
  • Each layer is made by applying a water-gypsum-fiber mixture on an endless, rotating support sieve and subsequent transport over rubber bands on which the layer of excess suction boxes Water is freed.
  • Different compositions are used for a multilayer element Masses applied in wide slot nozzles arranged one behind the other. In the subsequent Suction develops sufficient adhesion between the individual layers.
  • CH-PS-582 292 discloses a laminated gypsum fiber board, which essentially is composed of a plurality of thin layers of plaster and fibers. whereby itself alignment of the fibers in the longitudinal direction of the plates can be achieved. It will be one Mixture of plaster, water and fibers combined to form a fleece. which on a Format roller is wound up. After reaching the desired laminate thickness, the wound nonwoven layers separated at a point perpendicular to the direction of transport and the laminating layers processed into a plate. To achieve special properties of the Boards in terms of strength, porosity, density, etc., can be granular in addition to plaster and fibers or powdery additives such as perlite, diatomaceous earth, vermiculite can be added.
  • the object of the present invention is to provide panels for the construction of raised floors To provide, in particular, a lower specific weight and an improved have thermal insulation.
  • the present invention thus relates to a plate of the type mentioned at the outset, which according to the invention characterized in that the plate has two layers of an - in Use position - lower base layer and - in use position - upper layer is formed, wherein the lower base layer made of a hardened binder, the one includes first weight fraction of fibers, and the upper layer of a cured Binder, the expanded clay or an equivalent material and a second proportion by weight Includes fibers is formed, wherein the second proportion by weight of fibers is smaller than the first is.
  • Such plates have new and advantageous structural properties and possible uses on. They offer the same compared to the other known products Above all, the advantage of a lower specific weight and a larger one thermal insulation.
  • the base layer preferably has a weight fraction of cellulose fibers of 5% by weight. to 12% by weight and synthetic fibers from 0.5% to 4% by weight.
  • the top layer most conveniently has a weight fraction of expanded clay or equivalent Material from 12% by weight to 40% by weight, cellulose fibers from 1% by weight to 4% by weight and on synthetic fibers from 0.5% by weight to 8% by weight.
  • the fibers usually consist of divided cellulose fibers, synthetic fibers, in particular those made of polypropylene, polyacrylic, polyvinyl alcohol, and / or of glass fibers.
  • the thickness ratio of the base layer to the upper layer is in the range of 1: (2 - 4) lies.
  • the base layer can have a thickness of 0.7 cm to 1.5 cm and the upper layer has a thickness of 2.5 cm to 3.5 cm.
  • the thickness ratio of the base layer to the upper layer is in the range of 1: (2 - 4) lies.
  • the base layer can have a thickness of 0.7 cm to 1.5 cm and the upper layer has a thickness of 2.5 cm to 3.5 cm.
  • an aqueous suspension is produced which the binder and the fibers - cellulose fibers and optionally synthetic Fibers - includes.
  • the suspension advantageously contains the water and the solid Ingredients in a ratio between 0.7 and 1.5. In a more specific embodiment this ratio is between 0.7 and 1.1.
  • composition of the solid constituents of the suspension is preferably the following: 80% by weight to 95% by weight of binder and 5% by weight to 12% by weight of cellulose fibers, where the remainder, if any, of 100% consists of synthetic fibers.
  • the cellulose fibers are usually in divided form. It can also be recovered Fibers are used, as they are usually added to stucco and Mortar or as an asbestos substitute.
  • the suspension described above is obtained in a watertight manner Form introduced, the lower part of which has the same dimensions as the desired plate, e.g. 60 x 60 cm. However, the amount of suspension poured in only reaches one Part of the height of the shape.
  • a solid dry mixture is applied to the suspension, which consists of Binder, expanded clay or equivalent material and fibers.
  • the weight ratio between a dry, solid mixture and the suspension poured into the mold, is preferably between 1.2 and 1.7.
  • the dry, solid mixture preferably contains 50% by weight to 85% by weight of binder, 12% by weight to 40% by weight expanded clay or equivalent material, 1% by weight to 4% by weight Cellulose fibers and synthetic fibers as the remaining balance to 100%.
  • the content of the form is subjected to pressure. This is of the order of 800 N / cm 2 to 1500 N / cm 2 (80 kg / cm 2 to 150 kg / cm 2 ).
  • the plate can be used to build raised floors and can be used to apply a wear layer.
  • the wear layer is preferably made from a laminate of moquette or similar. It is on the surface of the top Layer, on the side facing away from the base layer, preferably applied by gluing.
  • the adhesion of this layer is excellent because the adhesive material in the pores of expanded clay or equivalent material that is also on the surface of the upper layer located, can penetrate.
  • Known plates can only be used with much larger ones Effort can be stuck to the wear layer.
  • the structure of the plate according to the invention is completed in the attached drawing represented by the glued-on wear layer.
  • the base layer 1 represents the bottom layer of the plate according to the invention. It consists of a matrix of water-hardened and / or air-hardened binder containing Cellulose fibers in the range of 5 wt .-% to 12 wt .-% and synthetic fibers in the Range from 0.5% to 4% by weight.
  • the upper layer 2 which is also based on a binder and expanded clay beads 3 or equivalent material in an amount of 12 wt .-% to 40% by weight, cellulose fibers in an amount of 1% by weight to 4% by weight and synthetic Contains fibers in an amount of 0.5 wt .-% to 8 wt .-%.
  • the wear layer 5 is with the help of the adhesive layer 4 on the upper, specifically lighter layer 2 attached.
  • the base layer 1 guarantees increased mechanical strength, while the layer 2 a increased thermal and acoustic insulation guaranteed.
  • the plates according to the invention have numerous advantages over the known plates, among which the lower specific weight (approx. 1600 kg / m 3 compared to 1900 kg / m 3 ), the higher thermal and acoustic insulation ability and a higher flame resistance are to be emphasized.
  • the plates according to the invention can be larger Thickness are carried out in order to achieve a higher load capacity with the same weight.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Floor Finish (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Producing Shaped Articles From Materials (AREA)
EP93112773A 1992-08-14 1993-08-10 Zweischichtige Platte auf der Basis von wassergehärteten und/oder luftgehärteten Bindemitteln zum Aufbau von Doppelböden Expired - Lifetime EP0585665B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI921993A IT1255783B (it) 1992-08-14 1992-08-14 Pannelli a due strati a base di leganti idraulici e/o aerei atti all'impiego nella realizzazione di pavimenti sopraelevati
ITMI921993 1992-08-14

Publications (2)

Publication Number Publication Date
EP0585665A1 EP0585665A1 (de) 1994-03-09
EP0585665B1 true EP0585665B1 (de) 1999-03-24

Family

ID=11363875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112773A Expired - Lifetime EP0585665B1 (de) 1992-08-14 1993-08-10 Zweischichtige Platte auf der Basis von wassergehärteten und/oder luftgehärteten Bindemitteln zum Aufbau von Doppelböden

Country Status (4)

Country Link
EP (1) EP0585665B1 (it)
AT (1) ATE178111T1 (it)
DE (1) DE59309474D1 (it)
IT (1) IT1255783B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19930366B4 (de) * 1999-06-15 2009-07-02 Xella Trockenbau - Systeme Gmbh Verbundplatte
EP1531148A1 (en) * 2003-11-14 2005-05-18 I.C.R.S. Industrial Ceramic Reinforcement Solution S.r.L. A panel in particular for raised flooring and a process for manufacturing said panel
US12227456B2 (en) 2017-10-06 2025-02-18 Etex Services Nv Fiber cement products and methods for the production thereof
EP3692010A1 (en) * 2017-10-06 2020-08-12 Etex Services NV Improved fiber cement products and methods for the production thereof
WO2019197658A2 (de) * 2018-04-13 2019-10-17 Interbran Systems Ag Wärmegedämmtes betonfertigteil

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1902153A1 (de) * 1969-01-17 1970-11-19 Rheinhold & Mahla Gmbh Verfahren zum Herstellen von Leichtbauplatten
DE2365161A1 (de) * 1973-12-29 1975-07-03 Heidelberg Portland Zement Verfahren zur herstellung von gipsfaserplatten sowie vorrichtung zur durchfuehrung des verfahrens
CH582292A5 (en) * 1974-08-30 1976-11-30 Amiantus Ag Gypsum fibre plate prodn - comprising thin layers with fibres in same plane (BE030876)
BE847984A (fr) * 1976-11-04 1977-03-01 Element prefabrique en beton et son procede de fabrication.
FI64130C (fi) * 1980-05-30 1983-10-10 Partek Ab Raoskiva foer en byggnadsskiva pao gipsbasis som framstaells enligt upprullningsfoerfarandet
IT1174925B (it) * 1983-09-28 1987-07-01 Hiross Int Co Pannello modulare per pavimenti sopraelevati

Also Published As

Publication number Publication date
DE59309474D1 (de) 1999-04-29
ATE178111T1 (de) 1999-04-15
EP0585665A1 (de) 1994-03-09
ITMI921993A0 (it) 1992-08-14
ITMI921993A1 (it) 1994-02-14
IT1255783B (it) 1995-11-15

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