WO2011106815A1 - Mousse minérale - Google Patents

Mousse minérale Download PDF

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Publication number
WO2011106815A1
WO2011106815A1 PCT/AT2011/000105 AT2011000105W WO2011106815A1 WO 2011106815 A1 WO2011106815 A1 WO 2011106815A1 AT 2011000105 W AT2011000105 W AT 2011000105W WO 2011106815 A1 WO2011106815 A1 WO 2011106815A1
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WO
WIPO (PCT)
Prior art keywords
parts
weight
foam
component
formulation
Prior art date
Application number
PCT/AT2011/000105
Other languages
German (de)
English (en)
Inventor
Falco Ducia
Original Assignee
Geolyth Mineral Technologie 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
Application filed by Geolyth Mineral Technologie Gmbh filed Critical Geolyth Mineral Technologie Gmbh
Publication of WO2011106815A1 publication Critical patent/WO2011106815A1/fr

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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
    • C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals
    • 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
    • C04B28/008—Mineral polymers other than those of the Davidovits type, e.g. from a reaction mixture containing waterglass
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0051—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/007—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore distribution, e.g. inhomogeneous distribution of pores
    • C04B38/0074—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore distribution, e.g. inhomogeneous distribution of pores expressed as porosity percentage
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • C04B38/106—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam by adding preformed foams
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/02—Inorganic materials
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • 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 invention relates to a formulation for producing a fire protection mineral foam comprising or consisting of a (em) water glass, at least one (em) aluminum silicate, at least one (em) hydroxide and at least one (r) oxidic component from a group comprising SiO 2 and A1203, a voided fire-resistant mineral foam comprising a geopolymer and a foam component, a component with a component body and a method for producing a self-hardening fire protection - mineral foam according to the powdered ingredients for producing a formulation in a first mixing section are mixed together to form a mixture and Water is added to this mixture to form a slurry.
  • a formulation for producing a fire protection mineral foam comprising or consisting of a (em) water glass, at least one (em) aluminum silicate, at least one (em) hydroxide and at least one (r) oxidic component from a group comprising SiO 2 and A1203, a voided fire-resistant mineral foam comprising
  • glycopolymer is understood to mean networks or chains of “mineral molecules” which are linked to one another via covalent bonds. Essentially, these are mainly aluminosilicates.
  • DE 41 07 430 AI describes a device for use in building construction, consisting of individual moldings, which are in the joint area with interposition of an adhesive acting as a joint material with each other, wherein at least a part of the molded body consists of a geopolymer material and wherein the Fugentechnikstoff a material of the said part of the molded body material is the same material.
  • the joint material and the material of the moldings can be foamed.
  • the geopolymer material is a material consisting of a solid mixture consisting of SiO 2, Al 2 O 3, filter ash, calcined bauxite and amorphous silica and a hardener made of alkali silicate solution which is reactive with the solid mixture.
  • a hardener made of alkali silicate solution which is reactive with the solid mixture.
  • the geopolymer material comprises this as blowing agent an oxygen-releasing S foaming agent.
  • Object of the present invention is to provide a mineral fire protection element with good fire protection properties.
  • This object of the invention is in each case independently achieved by the formulation mentioned above, in which the water glass is contained in a proportion selected from a range of 30 parts by weight and 60 parts by weight, the aluminum silicate is contained in a proportion such that the reactive aluminum oxide proportion is between 10 Parts by weight and 50 parts by weight, the hydroxide is contained in a proportion that the OH content is between 0.5 parts by weight and 4 parts by weight and the oxidic component is contained in proportion of between 5 parts by weight and 55 parts by weight, by a fire-resistant mineral foam in which the geopolymer has been prepared from a formulation according to the invention, by a component having the fire protection mineral foam, as well as by the method mentioned at the outset, after which the formulation is mixed in the composition according to the invention and the slurry in a second mixing section is a foam component is added and mixed into the slurry, and then the fire-resistant mineral foam is hardened.
  • a fire-resistant mineral foam can be produced according to the method, which offers fire protection up to at least 1400 ° C or is fire-resistant.
  • the advantage can be achieved that the mineral foam can be produced without the need for autoclaving, which simplifies the process and costs can be reduced.
  • the use of the geopolymers also has the advantage that the mineral foam hardens in a short time, so that it does not shrink or not significantly during hardening, and the curing takes place even at a relatively low temperature. In particular, the curing at a temperature of less than 100 ° C, for example at 80 ° C. respectively.
  • the mineral foam also has better mechanical properties, in particular a better flexural strength compared to Portland cement based mineral foams. It is also advantageous that the mineral foam can be used as mineral thermal insulation.
  • the water glass can be used in the form of an aqueous "solution", wherein the water glass content of this solution is between 30 parts by weight and 50 parts by weight and the rest forms the water. In particular, a basic precipitated waterglass is used.
  • the water glass is contained in a proportion selected from a range of 15 parts by weight and 40 parts by weight.
  • the aluminum silicate is preferably contained in a proportion such that the reactive aluminum oxide content is between 10 parts by weight and 48 parts by weight and between 20 parts by weight and 48 parts by weight.
  • the hydroxide is preferably contained in a proportion such that the OH content is between 0.8 parts by weight and 1.5 parts by weight.
  • the oxide component is preferably contained in a proportion between 10 parts by weight and 45 parts by weight.
  • the water glass is preferably a soda water glass or a potassium silicate glass or a derivative or a mixture thereof, since these promote the formation of foam by the foamy, solid alkali metal silicate can be formed by the withdrawal of water from these.
  • these substances have the advantage that they act as a refractory "glue", with additional substances are incorporated into a framework of the binder, so not "stuck together" point-like.
  • a potash water glass is used because it has better water resistance.
  • the hydroxide is selected from a group comprising NaOH, KOH, and mixtures thereof, as it has been found that sodium and potassium are better incorporated into the binder framework. It is believed that this is due to the favorable ionic radii of these elements.
  • the hydroxide is adapted to the water glass used, ie, which is used for a soda water glass NaOH and for a potash water KOH.
  • the aluminum silicate is preferably an alkali-activatable aluminum silicate, in particular a voluminous aluminum silicate, preferably basalt, pitchstone, obsidian, phonolite, and / or etakaolin. It can thus be positively influenced the solidification behavior and the setting time.
  • the setting time of the slurry can be adjusted so that the risk is reduced that the added foam collapses and thus the porosity of the insulating material is reduced. It can thus be simplified processing.
  • the aluminum silicate acts as an alkaline activatable binder.
  • a basalt is preferably used which has a content of zeolite and / or a pozzolan.
  • the content of zeolite and / or pozzolan can be up to 40% by weight, in particular up to 30% by weight. It will thus improve the alkaline activatability of the aluminum silicate.
  • the zeolite in particular has a supporting effect on the fire-retardant properties of the mineral foam.
  • the aluminum silicate is used in calcined form, whereby its reactivity and thus the setting behavior of the Slurey / foam mixture can be improved.
  • SiO 2 is present in an amount between 5 parts by weight and 15 parts by weight, in particular between 8 parts by weight and 12 parts by weight, preferably 10 parts by weight, or exclusively A1 2 0 3 in a proportion of between 35 parts by weight and 55 parts by weight, in particular between 40 parts by weight and 50 parts by weight, preferably 43 parts by weight. It was thus the desired properties in terms of thermal insulation, sound insulation and fire retardance or fire resistance can be further improved.
  • the formulation for stabilizing the slurry and thus for better processability of the slurry at least one thickener is added in a proportion of not more than 0.5 parts by weight.
  • the thickener is preferably added in a proportion of not more than 0.25 parts by weight, in particular not more than 0.02 parts by weight.
  • the thickener is selected from a group comprising hydroxyethyl methylcellulose, methylhydroxyethyl cellulose and mixtures and derivatives thereof, since it was found in the context of the tests carried out for the invention that these thickeners with respect to processing better properties, such as rheology, dispersion the solids, or the water requirement and the water retention capacity.
  • the formulation (and thus also the Miiieralschaum) is designed fiber-free, as this allows a more homogeneous structure of the foam body and a directional dependence of properties of the mineral foam can be better avoided.
  • it also simplifies the production of the mineral foam by avoiding any environmentally relevant adverse effects on fibers during the production of the mineral foam.
  • it is possible to add to the formulation fibers in a proportion of at most 3 parts by weight, in particular not more than 1 part by weight, preferably 0.3 parts by weight, in order to improve the bending tensile strength of the mineral foam. But it can also be used to stabilize the foam component.
  • Cellulose fibers store water, which is needed in the setting process, whereby this physically "bound" water is better controllable with regard to the hardening of the mineral foam
  • Cellulose fibers can also be used as thickener.
  • the fibers have a maximum length of 50 mm, in particular a maximum of 30 mm, and are in particular selected from a group comprising cellulose fibers, mineral fibers, glass fibers, in particular alkali-resistant glass fibers, polypropylene fibers, polyethylene fibers, polyvinyl chloride fibers, polyvinyl alcohol fibers, and mixtures thereof ,
  • Fibers of greater length so for example with a length between 3 mm and 50 mm, in particular between 3 mm and 30 mm, preferably between 3 mm and 12 mm, whose diameter preferably between 13 ⁇ and 25 ⁇ , preferably between 13 ⁇ and 18 ⁇ , are mainly added when the bending tensile strength is to be increased.
  • the formulation may be added to improve the rheology at least one processing aid from a group comprising an alkali metal carbonates, alkali metal sulfates, fruit acids, for example as a retarder.
  • the proportion of the hydrophobizing agent in the formulation may be up to 3 parts by weight, preferably up to 1 part by weight.
  • it may be provided that it is free of aggregates, i. is filler-free, so contains no non-reactive constituents, whereby the density of the mineral foam could be further reduced.
  • the foam component for producing the mineral foam is preferably a protein foam and / or a surfactant foam.
  • the foaming behavior can be better controlled than with the method of direct foaming with a blowing agent.
  • the pore size and the pore distribution can be influenced, and thus the thermal conductivity or the sound absorption capacity of the mineral foam and the fire retardancy can be better adjusted.
  • each proportion of formulation contains between 30 parts and 60 parts of foam component, in particular between 40 parts and 50 parts of foam component, since thus a higher porosity of the mineral foam can be achieved, and thus the density of the mineral foam can be reduced with high fire retardant properties.
  • At least one surface-active (surfactant) agent can be added to the foam component.
  • the surfactant is preferably selected from a group comprising fatty acids and alkyl sulfonates, as well as derivatives thereof and mixtures thereof, since with these materials an improvement in foam stabilization could be observed.
  • the foam component contains a crosslinker, the crosslinker preferably in a proportion between 1% and 3%, in particular in a proportion between 1.2% and 2.3%, of the weight of the hydraulically setting component on the mineral foam is. It can thus be improved, in particular accelerated, the formation of the mineral foam, wherein the stability of the foam formed can also be improved during setting of the hydraulic binder.
  • the crosslinker is preferably a vegetable protein.
  • the mineral foam has a pore content of at least 70%, in particular between 80% and 95%. Due to this high proportion of pores, not only can the insulation behavior per se be improved, but it also makes it possible to achieve a lower volume weight of the mineral foam.
  • the pores preferably have a maximum diameter of 0.5 mm, in particular not more than 0.25 mm or not more than 0.1 mm, in order on the one hand to achieve a positive insulating behavior and on the other hand to improve the mechanical stability of the finished mineral foam.
  • the foam component may also include air entraining agents, such as e.g. Alkyl polyglycol ethers, alkyl sulfates or sulfonates, i.a. to improve the stability of the foam.
  • air entraining agents such as e.g. Alkyl polyglycol ethers, alkyl sulfates or sulfonates, i.a. to improve the stability of the foam.
  • the foam component is mixed with water and, if appropriate, processing aids before being added to the slurry in a foam generator, as a result of which the processability thereof, in particular the
  • a foam generator may be used for this purpose.
  • Fig. 1 shows an apparatus for producing a self-curing mineral foam.
  • a mineral foam 2 is understood as meaning a pore-containing building material which is produced with a hydraulically setting binder. Preferably, this largely contains only mineral constituents, and processing aids may also be organic in nature.
  • the mineral foam 2 need not be autoclaved, as is known in the art.
  • the device 1 in the core of the invention a first mixing section 3 and one of these downstream in the direction of production, second mixing section 4.
  • the first mixing section 3 of powdered components of a formulation for producing the mineral foam 2, which can be kept in stock in storage containers 5, and which are fed via a conveyor 6, for example a screw conveyor, the first mixing section 3, with the addition of water accordingly Arrow 7 a so-called slurry, ie a mixture of the solid components and water, made.
  • a so-called slurry ie a mixture of the solid components and water, made.
  • a so-called slurry ie a mixture of the solid components and water
  • further additives for mixing with the pulverulent components in the first mixing section 3 can be applied, as indicated by a dashed arrow 8 in Fig. 1, wherein at least some of the additives can also be added in liquid or dispersed form.
  • Formulation for the preparation of the mineral foam 2 may already be added to these auxiliaries or processing aids and, if appropriate, these pulverulent components of the formulation can be premixed.
  • the mixing section 3 is designed as a paddle mixer or plow blade mixer, although other types of mixers, such as free-fall mixer, can be used.
  • the former mixer types have the advantage that less water has to be added - the goal is to use as little water as possible - and that the energy consumption per m 3 of slurry is relatively low.
  • this mixing section 3 may comprise mixing elements 9, which are arranged offset in the radial direction on a mixing path shaft 10. It can be arranged in the mixing section 3 between 2 and 20 mixing elements 9.
  • This slurry is subsequently added with a protein foam and / or a surfactant foam as foam component, which is produced in a foam generator 11.
  • the foam component used for this purpose is a protein foam and / or a surfactant foam.
  • protein 12 which can be kept in stock in a corresponding storage container 13, an animal or a vegetable protein or mixtures thereof is used.
  • the protein 12 used is a keratin, a hydrolyzed keratin, or preferably a soyabased protein, which is preferably alkaline. is resistant to lameness.
  • the protein can be used in an amount of up to 5 parts by weight.
  • water in particular distilled or purified water, according to arrow 14, is added to this protein 12 and, in the foam generator 11, the protein foam is produced by blowing air in accordance with arrow 15.
  • this foam component may also contain processing aids, e.g. be added from a reservoir 16, wherein it is also possible that, in the event that several processing aids are added, a mixing of these auxiliaries takes place beforehand.
  • these processing aids for the addition of the foam component can be added in powder form or in dissolved or dispersed form.
  • this mixing section 4 can be a conveying device 19, e.g. a screw conveyor, upstream, in which case it is possible for the time being the foam is introduced into the conveyor 19 so that it is at least approximately completely filled with this, and then the slurry is added to the foam, in particular stepwise, also a plurality of filling openings for the slurry may be present in the conveying device 19.
  • a conveying device 19 e.g. a screw conveyor
  • the second mixing section 4 is designed in particular as a paddle, screw, spiral mixer or static mixer or in the form of a combination of the or individual of these mixer types.
  • the two mixing sections 3, 4 are combined in a single mixer, wherein they are also separated from each other in this case, that are formed one behind the other in this mixer.
  • the first and / or second mixing section 3, 4 consist of a separate conveyor device 6 and 19 and a separate mixer, the separation can only look so that they have separate drives to different speeds and thus enabling a better mixing result with the lowest possible energy input.
  • the finished mixture of the slurry and the foam component from the second mixing section 4 is withdrawn via a corresponding conveyor 20 and this mixture can be filled into a corresponding shape to self-curing of the mineral foam 2 by the corresponding expiring, chemical reactions enable.
  • the mineral foam 2, according to the invention for example in plate form, for subsequent application to on building parts, such as walls, may be formed, it is also possible that with the mixture components, such as (hollow chamber) brick, at least partially filled, such as bricks or stones.
  • the mixture components such as (hollow chamber) brick
  • other forms of mineral foam 2 are possible, such as e.g. Stones, sanitary elements, elements in the area of the floor, for example, underfloor heating, etc ..
  • the mineral foam 2 is used as fire-retardant building material, which also has corresponding thermal insulation properties. It can thus be used e.g. be made of stones for the fireplace.
  • fillings of components are possible, which are not primarily used for thermal insulation but fire retardancy.
  • control and / or control organs and / or measuring organs are present within the device 1 and these control and / or control organs and / or measuring organs of course also computer Supported operated.
  • the foam component also has at least one crosslinker, which is formed in particular by a vegetable protein, for example transglutaminase.
  • the selected number of mixing elements 9 in the first mixing section 3, as stated above, has advantages with regard to the product properties of the mineral foam 2.
  • a mineral foam 2, ie a slurry, with a smaller or higher number of mixing rods 9 it has been found within the framework of testing the invention that the product properties of the mineral foam 2 have a number of mixing elements 9 from the stated range are improved.
  • the number of mixing elements 9 is related to a certain size of the device 1, that is, to a certain volume output of mineral foam 2, which is up to 50 m 3 / h. It is therefore possible, although not yet tested, that a number deviating from the specified number of mixing elements 9 is advantageous in the case of another design of the system 1.
  • a circumferential speed is selected from a range with a lower limit of 4 m / s, in particular 5.5 m / s, and an upper limit of 12 m / s, in particular 11 m / s. with which the mixing path shaft 10 of the mixing section 3 is operated, for the specified production volume also has advantages in terms of the product properties of the mineral foam 2.
  • combinations of different types of mixing elements 9 can be used, for example, five stator bars and four paddle bars as a rotor.
  • a combination of stator and rotor bars in the mixing sections 3, 4 can be used.
  • a water volume between 150 1 / h, in particular 300 1 / h and 10001 / h, in particular 500 1 / h the first mixing section 3 are supplied.
  • the water is distributed over several areas of the mixing section 3, in particular via spray nozzles.
  • the water can be arranged distributed over the circumference of the first mixing section 3 between 2 and 10, in particular between 3 and 6, spray nozzles.
  • the foam component has a density selected from a range having a lower limit of 35 kg / m 3 and an upper limit of 60 kg / m 3 .
  • the peripheral speed with which the second mixing section 4 is operated is preferably smaller than that of the first mixing section 3 in the above-described production volume and with regard to the volume flow of added foam component.
  • the mixing elements of the second mixing section 4 are arranged such that a Homogeneous mixing within the mixing section 4 between the slurry and the foam component takes place and the foam component is gently mixed with the slurry.
  • a mineral foam 2 which has a density of, for example, 400 kg / m, in particular a density between 100 kg / m 3 and 300 kg / m 3 . In this case, this specification refers to the completely dried mineral foam 2.
  • the density of the volume can also be adjusted, for example, via the densities of the slurry and the foam component.
  • the formulation from which the slurry is prepared in the first mixing section 3 in the simplest case of water glass, at least one of aluminum silicate, at least one hy- hydroxide and at least one oxide component selected from a group consisting of Si0 2 and A1 2 0. 3
  • the water glass is contained in an amount in the formulation selected from a range of 10 parts by weight and 50 parts by weight, the aluminum silicate in a proportion that the reactive, especially basic activatable, A1 2 0 3 - share between 8 parts by weight and 55 parts by weight is the hydroxide in a proportion that the free OH content is between 0.5 parts by weight and 4 parts by weight and the oxidic component in an amount between 5 parts by weight and 55 parts by weight.
  • free OH content is meant that the respective proportions of the water glass, if present, are not taken into account, but these proportions come from the other ingredients of the formulation.
  • the water glass is preferably a soda water glass or a Kaliiganglas, in particular a Kaliiganglas in the form of a potassium silicate solution with a potassium silicate in the range between 30 parts by weight and 50 parts by weight, preferably with 39 parts by weight to 41 parts by weight, with the rest forms water.
  • a potassium silicate solution with a potassium silicate in the range between 30 parts by weight and 50 parts by weight, preferably with 39 parts by weight to 41 parts by weight, with the rest forms water.
  • mixtures and derivatives thereof can be used.
  • the aluminum silicate is preferably selected from a group consisting of basalts and metakaolin, as well as mixtures and derivatives thereof.
  • the hydroxide is preferably selected from a group comprising NaOH, KOH, in particular KOH, and mixtures thereof.
  • the pulverulent constituents of the formulation in particular the aluminum silicate and the oxidic component, preferably have a particle size of up to 40 ⁇ m and a maximum of 17% larger particles in the main amount.
  • this formulation contains no non-reactive fillers, so all the components are reactive.
  • the formulation may contain at least one thickening agent in a proportion by weight of max. 0.5 parts by weight may be added, this thickening agent is preferably selected from a group comprising hydroxymethylpropylcellulose, methylhydroxyethylcellulose, and mixtures and derivatives thereof.
  • rheology-enhancing adjuncts such as e.g. Means of reducing the
  • Viscosity be added to avoid a decrease of the solid components in the slurry.
  • the formulation fibers are added in a proportion of at most 3 part by weight, these fibers in a preferred embodiment, when used to improve the Theological properties, may have a maximum length of 200 ⁇ and in particular be selected may be selected from a group comprising cellulose fibers, basalt fibers, glass fibers, in particular alkali-resistant glass fibers, polypropylene fibers, and mixtures thereof.
  • fibers which are added to improve the bending tensile strength have a length of up to 50 mm, in particular between 3 mm and 12 mm.
  • alkali metal carbonates such as Li 2 C0 3
  • alkali metal sulfates such as citric acid, or tartaric acid, which may each be contained in a proportion of up to 2 parts by weight.
  • the formulation also has a hydrophobizing agent in a proportion of at most 1 part by weight in order to reduce the water absorption of the finished mineral foam 2, so that thus a smaller reduction of the thermal insulation behavior, ie the thermal conductivity, can be achieved by water absorption.
  • a hydrophobizing agent in a proportion of at most 1 part by weight in order to reduce the water absorption of the finished mineral foam 2, so that thus a smaller reduction of the thermal insulation behavior, ie the thermal conductivity, can be achieved by water absorption.
  • the foam component may also be used to improve the life of the foam, a surfactant, i. an agent lowering the surface tension is added, the proportion of which in the foam component is preferably at most 10 parts by weight. It also improves the wettability of the powder.
  • a surfactant i. an agent lowering the surface tension is added, the proportion of which in the foam component is preferably at most 10 parts by weight. It also improves the wettability of the powder.
  • wetting agents known from the prior art in particular in a proportion of up to 0.2 parts by weight, and highly viscous stabilizers, in particular in an amount of up to 0.02 parts by weight, may also be added to the foam component in order to improve the mixing with the slurry.
  • the mineral foam 2 produced by the process according to the invention has pores which have a diameter of not more than 1 mm and may be present in a proportion of the insulating material of 80%.
  • a preferred composition of the formulation for producing the mineral foam 2 consists of 35 parts by weight to 45 parts by weight of a potassium silicate solution or sodium silicate solution having a water content of 61 parts by weight, in particular 40 parts by weight, 45 parts by weight to 55 parts by weight, in particular 48 parts by weight, calcined basalt 1.5 parts by weight to 2.5 parts by weight, in particular 2 parts by weight, of KOH or NaOH, 7.5 parts by weight to 12.5 parts by weight, in particular 10 parts by weight of Si0 2 .
  • a further preferred composition of the formulation for producing the mineral foam 2 comprises 35 parts by weight to 45 parts by weight of a potassium silicate solution or sodium silicate solution having a water content of 61% by weight, in particular 40 parts by weight, 12 parts by weight to 18 parts by weight, in particular 15 parts by weight, of calcined basalt. 1.5 parts by weight to 2.5 parts by weight, in particular 2 parts by weight,
  • KOH or NaOH 38 parts by weight to 46 parts by weight, in particular 43 parts by weight of A1 2 0 3 .
  • the embodiment shows a possible embodiment of the device 1, wherein it should be noted at this point that the invention is not limited to the specifically illustrated embodiment of the same. For the sake of order, it should finally be pointed out that, for better understanding of the structure of the device 1, these or their components have been shown partially unevenly and / or enlarged and / or reduced in size.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne une formulation pour la préparation d'une mousse minérale coupe-feu, comprenant ou constituée par un verre soluble, au moins un silicate d'aluminium, au moins un hydroxyde, ainsi qu'au moins un composant de type oxyde du groupe comprenant SiO2 et Al2O3, caractérisée en ce que le verre soluble est présent en une proportion comprise dans la plage de 10 parties en poids à 50 parties en poids, le silicate d'aluminium est présent en une proportion telle que la proportion d'Al2O3 soit comprise entre 8 parties en poids et 55 parties en poids, l'hydroxyde est présent en une proportion telle que la proportion d'OH- soit comprise entre 0,5 partie en poids et 4 parties en poids, et le composant de type oxyde est présent en une proportion comprise entre 5 parties en poids et 55 parties en poids. L'invention concerne également la mousse minérale et un procédé de fabrication de la mousse minérale.
PCT/AT2011/000105 2010-03-04 2011-03-03 Mousse minérale WO2011106815A1 (fr)

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ATA340/2010A AT509575B1 (de) 2010-03-04 2010-03-04 Mineralschaum
ATA340/2010 2010-03-04

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EP2868637A1 (fr) 2013-10-31 2015-05-06 Construction Research & Technology GmbH Formulation de mousse géopolymère
WO2015144882A1 (fr) * 2014-03-27 2015-10-01 Commissariat à l'énergie atomique et aux énergies alternatives Procédé de préparation d'un géopolymère macroporeux et mésoporeux, à porosité contrôlée
CN105289469A (zh) * 2015-10-31 2016-02-03 中国地质大学（武汉） 一种地质聚合物基多孔吸附材料及其制备方法
WO2017174560A1 (fr) 2016-04-07 2017-10-12 Construction Research & Technology Gmbh Formulation de mousse de géopolymère
CN107746213A (zh) * 2017-10-18 2018-03-02 浙江大学 一种用于工业储罐火灾应急防护的无机泡沫材料及其制备方法
CN110128095A (zh) * 2019-05-13 2019-08-16 武汉理工大学 一种颗粒纤维混杂增强铝硅酸盐聚合物复合材料及其制备方法
WO2022223640A1 (fr) 2021-04-24 2022-10-27 Construction Research & Technology Gmbh Mousses géopolymères à base de matériaux céramiques
EP4249234A1 (fr) 2022-03-24 2023-09-27 Dietrich Isol AG Panneau isolant multicouche
WO2023180513A1 (fr) 2022-03-24 2023-09-28 Dietrich Isol Ag Panneau d'isolation multicouche, procédé de fabrication de panneau d'isolation multicouche et utilisation de matériau minéral en tant que couche d'isolation thermique

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DE202013103684U1 (de) 2013-08-14 2014-11-17 SCHÜCO International KG Profil für Türen, Fenster, Blendrahmen oder Fassadenkonstruktionen
DE102019006652A1 (de) * 2019-09-20 2021-03-25 Aero-Comfort-Tex Gmbh Flammschutzmittel, Anordnung aus einem Flammschutzmittel und einem Trägerstoff sowie Verfahren zum Herstellen eines Flammschutzmittels

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EP3530631A1 (fr) 2013-10-31 2019-08-28 Construction Research & Technology GmbH Formulation de mousse géopolymère pour un élément de mousse géopolymère calorifuge, insonorisant, inflammable
EP2868637A1 (fr) 2013-10-31 2015-05-06 Construction Research & Technology GmbH Formulation de mousse géopolymère
US10214452B2 (en) 2013-10-31 2019-02-26 Construction Research & Technology, Gmbh Geopolymer foam formulation for a non-flammable, sound-absorbing, thermally insulating geopolymer foam element
US10597326B2 (en) 2013-10-31 2020-03-24 Construction Research & Technology, Gmbh Geopolymer foam formulation for a non-flammable, sound-absorbing, thermally insulating geopolymer foam element
WO2015144882A1 (fr) * 2014-03-27 2015-10-01 Commissariat à l'énergie atomique et aux énergies alternatives Procédé de préparation d'un géopolymère macroporeux et mésoporeux, à porosité contrôlée
FR3019176A1 (fr) * 2014-03-27 2015-10-02 Commissariat Energie Atomique Procede de preparation d'un geopolymere macroporeux et mesoporeux, a porosite controlee
JP2017513792A (ja) * 2014-03-27 2017-06-01 コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ 制御された多孔性を持ったマクロポーラスかつメソポーラスなジオポリマーを製造する方法
US10322966B2 (en) 2014-03-27 2019-06-18 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method for producing a macroporous and mesoporous geopolymer, with controlled porosity
CN105289469A (zh) * 2015-10-31 2016-02-03 中国地质大学（武汉） 一种地质聚合物基多孔吸附材料及其制备方法
WO2017174560A1 (fr) 2016-04-07 2017-10-12 Construction Research & Technology Gmbh Formulation de mousse de géopolymère
CN107746213A (zh) * 2017-10-18 2018-03-02 浙江大学 一种用于工业储罐火灾应急防护的无机泡沫材料及其制备方法
CN110128095A (zh) * 2019-05-13 2019-08-16 武汉理工大学 一种颗粒纤维混杂增强铝硅酸盐聚合物复合材料及其制备方法
WO2022223640A1 (fr) 2021-04-24 2022-10-27 Construction Research & Technology Gmbh Mousses géopolymères à base de matériaux céramiques
EP4249234A1 (fr) 2022-03-24 2023-09-27 Dietrich Isol AG Panneau isolant multicouche
WO2023180513A1 (fr) 2022-03-24 2023-09-28 Dietrich Isol Ag Panneau d'isolation multicouche, procédé de fabrication de panneau d'isolation multicouche et utilisation de matériau minéral en tant que couche d'isolation thermique

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