EP4247771A2 - Verkleidungsplatte auf der basis von erde - Google Patents

Verkleidungsplatte auf der basis von erde

Info

Publication number
EP4247771A2
EP4247771A2 EP21806763.5A EP21806763A EP4247771A2 EP 4247771 A2 EP4247771 A2 EP 4247771A2 EP 21806763 A EP21806763 A EP 21806763A EP 4247771 A2 EP4247771 A2 EP 4247771A2
Authority
EP
European Patent Office
Prior art keywords
weight
earth
facing plate
equal
core
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.)
Pending
Application number
EP21806763.5A
Other languages
English (en)
French (fr)
Inventor
Hugo Perez
Louis Perez
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.)
Norper SAS
Original Assignee
Norper SAS
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 Norper SAS filed Critical Norper SAS
Publication of EP4247771A2 publication Critical patent/EP4247771A2/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/006—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mineral polymers, e.g. geopolymers of the Davidovits type
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C04B2111/0062—Gypsum-paper board like materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention relates to an earth-based facing plate.
  • plaster-based facing panels it is common to use plaster-based facing panels to make vertical or horizontal partitions such as, for example, partition walls or ceilings.
  • These plates are composite plates with two outer layers (typically cardboard) and a plaster core.
  • the plaster of chemical formula CaSCL, V 2 ELO, results from the calcination of natural or synthetic gypsum. In the presence of water, the calcined gypsum undergoes a hydration reaction and is transformed again into calcium sulphate dihydrate (CaS ⁇ 4.2 H2O: gypsum).
  • the plaster manufacturing process is therefore a very energy-intensive process, which is a problem in connection with the new environmental regulations.
  • the inventors have now developed a new earth-based mixture forming the core and which makes it possible to obtain a facing plate that meets the standards in terms of resistance to mechanical stress and bending under load.
  • the inventors have developed a new earth-based mortar whose performance is improved while it uses lower proportions of lime, but also of crystallizer.
  • the addition of a porous silica-based material makes it possible to achieve the desired performance of the final product, even when the mortar does not include a crystallizer.
  • the plate obtained has a much more favorable energy balance than conventional plaster-based facing plates, which makes it much more attractive than current facing plates in connection with the future RE 2020 standard. .
  • a first object of the invention relates to an earth-based facing plate, characterized in that the core comprises:
  • crystallizer between 0.5 and 15% by weight (relative to the total weight of the core) of crystallizer; preferably between 2 and 10%, especially between 3 and 8% and, in a particularly preferred manner, between 4 and 6%;
  • binder selected from slag, metakaolin and plaster and, optionally lime; preferably between 20 and 60% and, in a particularly preferred way, between 25 and 55%; and
  • the facing plate according to the invention comprises two sheets (e.g. paper, cardboard, etc.) between which the core is placed.
  • a second object of the invention relates to a method of manufacturing such a facing plate comprising a forming step comprising the pouring of a main batch and the forming of the facing plate, a setting step and a drying step; wherein the main batch comprises water and earth, characterized in that the main batch comprises:
  • composition (relative to the total weight of the main batch) comprising:
  • [00021] optionally between 1 and 20% by weight of a material having a silica content greater than 50% (by weight), an open porosity greater than 45%, a particle size less than or equal to 5 mm, preferably 2mm;
  • binder preferably between 20 and 60% and, particularly preferably, between 25 and 55%;
  • the facing plate comprises two sheets between which the core is placed and the forming step then comprises: [00026] - the supply of a first sheet;
  • a third object of the invention relates to a use of at least one crystallizer for the manufacture of an earth-based facing plate.
  • the core of said facing plate comprises between 20 and 60% by weight of binder; and between 80 and 20% by weight of soil with a grain size less than or equal to 5 mm.
  • the core of said facing plate comprises between 0.5 and 15% by weight (relative to the total weight of the core) of crystallizer.
  • the first object of the invention therefore relates to a facing plate whose core comprises:
  • crystallizer between 0.5 and 15% by weight (relative to the total weight of the core) of crystallizer; especially between 2 and 10% and preferably between 3 and 8% and, particularly preferably between 4 and 6%;
  • binder preferably between 20 and 60% and, particularly preferably, between 25 and 55%;
  • the porous and silica-rich material is chosen from the group comprising diatomaceous earth, waste glass wool or rock (eg cullet and fibres), refractory brick waste (e.g. dust and residues).
  • the porous silica-rich material is diatomaceous earth, also known as kieselguhr. It is a siliceous sediment with very high porosity giving it significant liquid absorption properties.
  • the presence of such a porous material in the mortar advantageously makes it possible to adjust the proportion of water and makes it possible to improve the performance of the material obtained.
  • Waste glass wool or refractory bricks when they are ground, are also porous materials rich in silica which in particular make it possible to reinforce the binder function of the mortar.
  • the particle size of this material is less than 1 mm. Typically, this particle size is between 1 and 500 ⁇ m.
  • the porous and silica-rich material has a silica content greater than 80% (by weight) and, in a particularly preferred manner, greater than 90%.
  • a porous material is a material containing pores or cavities of small size and which can contain one or more fluids (liquid or gas).
  • a structure is said to have open porosity when the pores are interconnected, thus forming very fine channels. Such an open porosity structure makes water absorption possible.
  • the silica-rich material is a material whose so-called “open” porosity is greater than 45%.
  • Porosity is a physical quantity between 0 and 100% (or between 0 and 1), which conditions the flow and retention capacities of a substrate. This open porosity is measured in a conventional way by mercury intrusion porosimetry, i.e. by a method consisting in penetrating mercury into the pores of a sample under increasing pressure.
  • the porous material rich in silica has an open porosity greater than 60% and, in a particularly preferred manner, greater than 80%, or even greater than 90%.
  • crystalizer sometimes also called mineralizer, is meant compounds capable of forming, by a qualified reaction of mineralization, crystalline and insoluble complexes with the soluble compounds of the mortar (free lime).
  • silicate salts eg sodium carbonate such as natron
  • carbonate salts eg sodium carbonate such as natron
  • Such crystallizers are known for use in the waterproofing of concrete, in particular under the names PENETRON, XYPEX, VANDEX, mineralizer B HYDRO-MINERAL, etc.
  • crystallizer is understood to mean a silicate salt.
  • the crystallizer is chosen from the group comprising sodium silicate, potassium silicate, calcium silicate, magnesium silicate, and mixtures thereof.
  • the crystallizer comprises potassium silicate.
  • slag means the slag formed during the melting or elaboration of the metal by the liquid process. It is a mixture composed mainly of silicates, aluminates and lime with various metal oxides except iron oxides.
  • metalakaolin is meant the product of a calcination of kaolin and/or kaolin clay.
  • plaster generally means both set plaster, that is to say calcium sulphate dihydrate, and unset plaster, that is to say calcium sulphate hemihydrate. .
  • set plaster that is to say calcium sulphate dihydrate
  • unset plaster that is to say calcium sulphate hemihydrate.
  • lime is meant artificial lime which essentially comprises calcium and magnesium oxide and/or calcium and magnesium hydroxide.
  • lime is chosen from the group comprising hydraulic lime and aerial lime.
  • the core comprises between 0 and 25% by weight (relative to the total weight of the core).
  • the binder is plaster.
  • the binder is slag with, optionally, lime.
  • Soil means soil from earthworks or excavation (quarry) operations, or even crushed deconstruction materials, excluding topsoil.
  • deconstruction material concrete, plaster, stone or even mortar.
  • the earth is chosen from the group comprising earth resulting from earthworks or excavation (quarry) operations.
  • This soil may therefore present a very great diversity of nature depending on the site from which it comes.
  • Such soil may include gypsum, silt, limestone, silica, clay and mixtures thereof.
  • said earth is not gypsum.
  • said earth will incorporate a clay content of less than or equal to 50% by weight, preferably less than or equal to 25% and, in a particularly preferred manner, less than or equal to 10%.
  • a clay content can be determined by a particle size method such as that described in standard NF X31-107.
  • the earth does not come from sand quarries or aggregate quarries (virgin aggregates).
  • earth that has undergone at most one pre-treatment by grinding, sorting (e.g. depending on the hue), sieving and/or drying before being mixed with the other components of the earth mortar is preferred. It should be noted that the earth used has therefore not undergone any chemical pre-treatment, such as a pre-treatment with a surfactant, so as to modify its structure and allow its liquefaction.
  • the soil used will have a smaller particle size or equal to 3 mm, for example less than or equal to 2 mm, and preferably less than or equal to 1 mmm.
  • the earth comprises clay.
  • clay makes it possible to significantly improve the acoustic performance of the facing plate by increasing the capacity of the plate to limit the propagation of sound waves.
  • the core comprises, as earth, between 5 and 50% clay, preferably between 5 and 25% clay (relative to the total weight of the core).
  • phyllosilicates comprising in particular as clays, antigorite, chlorite, dickite, greenalite, hallosysite, illite, kaolinite, montmorillonite, nacrite, sepiolite, smectite and vermiculite.
  • the core of the facing panel further comprises fibers.
  • fibers means both synthetic fibers (eg polypropylene or polyethylene fibers, glass fibers, carbon fibers, etc.) and natural fibers (eg cellulose fibers).
  • the fibers in question can be short (3 to 6 mm on average) or long (10 to 24 mm on average) or of intermediate dimensions.
  • the core comprises between 0.1 and 20% by weight (relative to its total weight), preferably between 0.5 and 10% by weight and, in a particularly preferred manner, between 0.5 and 5% by weight.
  • the fibers are cellulose fibers (eg paper or cardboard pulp).
  • the facing plate according to the invention has a thickness adapted to the intended use.
  • the facing plate has a thickness of between 6 and 25 mm, preferably between 10 and 20 mm.
  • the facing plate according to the invention comprises two sheets between which the core is placed. Such a plate is then suitable for making partitions, linings and/or ceilings.
  • the sheets conventionally used are typically made of cellulose (paper, recycled paper or cardboard) or inorganic fiber (for example fiberglass).
  • the sheets are made of cellulose.
  • BA 13 plates In the case of “BA 13” plates, they typically have a thickness of paper on each side of 0.3 mm and therefore a thickness of the core of 11.9 mm.
  • the paper is for example a paper with a weight of 180 g/m 2 .
  • the core can incorporate other additives to either improve some of its properties (e.g. water repellents, flame retardants, biocides and reinforcing agents), or to facilitate its production (processability additives)
  • additives e.g. water repellents, flame retardants, biocides and reinforcing agents
  • a second object of the invention relates this time to a method of manufacturing such a facing plate.
  • Such a method comprises a forming step (discharge of a main batch and forming of the facing plate), a setting step and a drying step; in which the main batch comprises:
  • binder between 15 and 60% by weight of binder, preferably between 20 and 60% and, particularly preferably, between 25 and 55%; [00093] and
  • composition is equivalent to that of the core of the facing panel described above.
  • the main mix may include other additives, such as those likely to improve the characteristics of the core and described above, but also processability additives allowing the properties of the mix to be improved depending on the manufacturing conditions. .
  • Processability additives well known to those skilled in the art may in particular be adhesion agents, foaming agents, fluidifying agents, thickening agents, wetting agents, dispersing agents, setting-regulating agents ( accelerators or retarders).
  • adhesion agents mention may be made of poly(vinyl acetate), a poly(vinyl alcohol), a starch, in particular previously treated with an acid or pre-gelatinized, a dextrin or a flour vegetable, in particular wheat or corn.
  • foaming agents mention may be made of surfactants such as those described in international applications WO 2002/024595A1 and WO 2009/085635 or, in patent application FR 3059662.
  • PMS Poly Melamine Sulfonates
  • PPS Poly Naphthalene Sulfonates
  • PCP Poly Carboxylate Poly oxy ethylene
  • thickening agents By way of example of thickening agents, mention may be made of cellulose derivatives such as for example carboxymethylcellulose, methylhydroxypropylcellulose or methylhydroxyethylcellulose, vegetable gums such as for example acacia, tragacanth, carob, dextran, diutane, gellan , guar, scleroglucan, xanthan, welan, polyethylene oxides, starch or its derivatives, gelatin, polysaccharides, hydrocolloids, agar and carrageenans. [000102] Mention may be made, as examples of wetting agents, of alcohols, polyols and in particular diols.
  • wetting agents of alcohols, polyols and in particular diols.
  • dispersing agents By way of examples of dispersing agents, mention may be made of carboxylic polymers or their salts;
  • a third object of the invention relates to a use of at least one material having a silica content greater than 50% (by weight), an open porosity greater than 45% for the manufacture of a facing plate soil-based as previously described.
  • a fourth object of the invention relates to a use of at least one crystallizer for the manufacture of an earth-based facing plate as described above.
  • the core of said facing plate comprises between 20 and 60% by weight of binder and between 80 and 20% by weight of earth having a particle size less than or equal to 5 mm.
  • the core of said facing plate comprises between 2 and 10% by weight (relative to the total weight of the core) of crystallizer.
  • the crystallizer is a silicate salt which can be chosen from the group comprising sodium silicate, potassium silicate, calcium silicate, magnesium silicate, and mixtures thereof and, in a particularly preferred manner , the crystallizer comprises potassium silicate.
  • Each mix is then cast on a first sheet of paper (180 g/m 2 ) so as to form a core of 12 mm, then a second sheet, identical to the first, is positioned above the main mix.
  • the forming step is then carried out using a press applied to the assembly.
  • the facing plates according to the invention have entirely satisfactory properties for use in construction. It should be noted that the use of a silica-based material (diatomaceous earth) considerably improves the properties of earth-based facing plates.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Civil Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Road Paving Structures (AREA)
  • Building Environments (AREA)
EP21806763.5A 2020-11-17 2021-11-17 Verkleidungsplatte auf der basis von erde Pending EP4247771A2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR2011804A FR3116287B1 (fr) 2020-11-17 2020-11-17 Plaquette de parement à base de terre
FR2109761A FR3116288B1 (fr) 2020-11-17 2021-09-16 Plaquette de parement à base de terre
PCT/EP2021/082053 WO2022106499A2 (fr) 2020-11-17 2021-11-17 Plaquette de parement à base de terre

Publications (1)

Publication Number Publication Date
EP4247771A2 true EP4247771A2 (de) 2023-09-27

Family

ID=74592119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21806763.5A Pending EP4247771A2 (de) 2020-11-17 2021-11-17 Verkleidungsplatte auf der basis von erde

Country Status (3)

Country Link
EP (1) EP4247771A2 (de)
FR (2) FR3116287B1 (de)
WO (1) WO2022106499A2 (de)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1246097A (en) 1968-01-05 1971-09-15 Pilkington Brothers Ltd Improvements in or relating to casting roll units
FR2109761A5 (de) 1970-10-05 1972-05-26 Eastman Kodak Co
FR2399986A1 (fr) * 1977-08-09 1979-03-09 Todini Marcello Materiau de construction destine a economiser le platre dans l'industrie de la construction et procede de fabrication d'un tel materiau
FR2814459B1 (fr) 2000-09-22 2002-12-06 Lafarge Platres Composition de tensioactifs pour plaques de platre
WO2003089385A1 (en) * 2002-04-16 2003-10-30 G.Plus Co., Ltd. Clay porous concrete composites of non-cement types and its a manufacturing method
WO2003089383A1 (en) * 2002-04-16 2003-10-30 G.Plus Co., Ltd. Non-heating clay composites for building materials
EP1999084A1 (de) * 2006-03-27 2008-12-10 Knauf Gips KG Gipsprodukt
DE102007018597A1 (de) * 2007-04-18 2008-10-23 Robert Schuh Lehmbauplatte
FR2916462B1 (fr) * 2007-05-21 2016-05-13 Placoplatre Sa Plaque de parement a base de platre
US9650305B2 (en) 2007-12-28 2017-05-16 United States Gypsum Company Hard water foaming agents and methods for gypsum board production
FR3059662B1 (fr) 2016-12-05 2021-04-30 Placoplatre Sa Procede de fabrication de plaques de platre
FR3093513B1 (fr) * 2019-03-06 2022-12-09 Materrup Procédé de sélection de la composition d’un matériau de construction comportant une terre argileuse excavée, procédé et système de préparation d’un tel matériau de construction

Also Published As

Publication number Publication date
WO2022106499A3 (fr) 2022-08-11
FR3116287B1 (fr) 2023-09-29
FR3116287A1 (fr) 2022-05-20
FR3116288B1 (fr) 2023-10-06
FR3116288A1 (fr) 2022-05-20
WO2022106499A2 (fr) 2022-05-27

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