DE102016001930A1 - Self-foaming and self-hardening inorganic mineral foam - Google Patents
Self-foaming and self-hardening inorganic mineral foam Download PDFInfo
- Publication number
- DE102016001930A1 DE102016001930A1 DE102016001930.1A DE102016001930A DE102016001930A1 DE 102016001930 A1 DE102016001930 A1 DE 102016001930A1 DE 102016001930 A DE102016001930 A DE 102016001930A DE 102016001930 A1 DE102016001930 A1 DE 102016001930A1
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- Prior art keywords
- automatically
- foaming
- processing time
- inorganic mineral
- mineral foam
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- 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
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- 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
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Die Herstellung von anorganischen Mineralschäumen, die dem derzeitigen Stand der Technik entsprechen, ist verarbeitungstechnisch oft so kompliziert, dass diese nur unter erheblichem Aufwand direkt am Nutzungsort oder meist in entsprechend ausgerüsteten Produktionsstandorten produziert werden können. Die Erfindung betrifft einen bei Umgebungsdruck und -temperatur selbsttätig aufschäumenden und selbsttätig aushärtenden anorganischen Schaum, der auf einer zu Ettringit reagierenden Matrix basiert. Um die zu Ettringit reagierende Matrix zu erhalten, werden Calciumaluminatzement (Tonerdezement), Calciumsulfat-Halbhydrat, ein Portlandzement und Wasser gemischt. Als Treibmittel wird Wasserstoffperoxid beigemischt, sodass die Matrix selbsttätig aufschäumt, wobei zugesetzte Tenside den entstehenden Schaum stabilisieren. Der gegenständliche Mineralschaum kann für Bau-, Montage- und Dämmzwecke eingesetzt werden.The production of inorganic mineral foams, which correspond to the current state of the art, is often so complicated in terms of processing technology that it can only be produced at considerable expense directly at the place of use or usually in appropriately equipped production sites. The invention relates to an automatically foaming at ambient pressure and temperature and self-curing inorganic foam, which is based on a responsive to ettringite matrix. To obtain the ettringite-reactive matrix, calcium aluminate cement (alumina cement), calcium sulfate hemihydrate, Portland cement, and water are mixed. Hydrogen peroxide is added as blowing agent, so that the matrix foams automatically, wherein added surfactants stabilize the resulting foam. The physical mineral foam can be used for construction, assembly and Dämmzwecke.
Description
Die Erfindung betrifft einen selbsttätig aufschäumenden und nach einer einstellbaren Verarbeitungszeit selbsttätig aushärtenden anorganischen Schaum für Bau-, Montage- und Isolierzwecke, der ohne Anwendung von erhöhtem Druck oder erhöhter Temperatur direkt auf der Baustelle oder beim Anwender erzeugt und eingesetzt werden kann.The invention relates to an automatically foaming and after an adjustable processing time automatically curing inorganic foam for construction, assembly and insulation purposes, which can be generated and used directly on the site or at the user without the application of elevated pressure or elevated temperature.
Charakteristisch für diesen rein anorganischen Schaum ist dessen einfache Herstellbarkeit aus den Rezepturkomponenten, die einfache Anwendung zur Ausschäumung von Hohlräumen oder Bauteilen, die günstigen mechanischen und wärmetechnischen Eigenschaften des erhärteten Schaumkörpers, die Unbrennbarkeit und weitgehende Resistenz gegen Umwelteinflüsse, Feuchtigkeit, erhöhte Temperatur und seine Unverrottbarkeit und Resistenz gegen Schädlinge und nicht zuletzt seine günstigen Herstellungs- und Anwendungskosten.Characteristic of this purely inorganic foam is its ease of manufacture from the formulation components, the simple application for foaming cavities or components, the favorable mechanical and thermal properties of the hardened foam body, the incombustibility and extensive resistance to environmental influences, humidity, elevated temperature and its unbreakability and Resistance to pests and not least its cheap manufacturing and application costs.
Die zunächst breiartige oder dünnflüssige pumpbare und fließfähige Matrix schäumt beim Mischvorgang mit einem das Treibgas Sauerstoff bildenden flüssigen Treibmittel selbsttätig auf und erhärtet nach dem Einbringen und Aufblähen in den Hohlräumen oder Formen innerhalb eines einstellbaren Zeitintervalls, in welchem er noch verarbeitbar bleibt, selbsttätig bei normaler Temperatur und atmosphärischem Druck zu einem festen porösen Körper aus, dessen mechanische und bauphysikalische Eigenschaften wie Festigkeit, Dichte, Porengröße und Porenvolumen, Wärmeleitfähigkeit und Schallschluckvermögen in weiten Grenzen variierbar sind. Durch den Mineralschaum lassen sich beliebige Hohlräume füllen, Formen ausschäumen oder Formkörper herstellen, Zwischendecken, Zwischenwände oder Dachschrägen vor Ort ausschäumen und vieles mehr.The initially mushy or low-viscosity pumpable and flowable matrix foams automatically during the mixing process with a propellant gas oxygen forming liquid propellant and hardens after the introduction and inflation in the cavities or forms within an adjustable time interval in which he still remains processable, automatically at normal temperature and atmospheric pressure to a solid porous body whose mechanical and physical properties such as strength, density, pore size and pore volume, thermal conductivity and sound absorption capacity can be varied within wide limits. Thanks to the mineral foam, any cavities can be filled, molds can be foamed or moldings can be produced, intermediate ceilings, partitions or roof slopes can be foamed on site and much more.
Die Erzeugung und Anwendung rein anorganischer und damit unbrennbarer und verrottungsresistenter Schaumkörper mit hohem Porenvolumen erfolgt üblicherweise bei höheren Temperaturen und teils Anwendung erhöhter Drücke (z. B.:
Ein durch das Verfahren gemäß
Ziel der Erfindung ist ein anorganischer, unbrennbarer unverrottbarer Mineralschaum, der ebenfalls wie die bekannten Mineralschäume selbsttätig aufschäumt und aushärtet, jedoch auf einer zu Ettringit reagierenden Matrix basiert.The aim of the invention is an inorganic, incombustible, non-erodible mineral foam, which, like the known mineral foams, also foams and cures automatically, but is based on a matrix that reacts with ettringite.
Es wurde gefunden, dass anstelle der Reaktion von Magnesiumoxid und Magnesiumchlorid zu basischen Chloriden (Sorelzement) eine Bindemittelsuspension in Form einer dickflüssigen breiartigen Matrix mittels Wasserstoffperoxid als Treibmittel und Tensiden als Schaumstabilisator selbsttätig aufschäumt und auch ohne Chloridanteil zu einem porösen Festkörper selbsttätig aushärtet, wenn diese Stoffmischung der Matrix eine zu Ettringit reagierende Mischung aus Calciumaluminatzement (Tonerdezement), Calciumsulfat-Halbhydrat und einem Portlandzement und Wasser ist. Dieser chloridfreien Matrix in Form eines dickflüssigen bis breiartigen Gemisches wird zu Erzeugung eines Flüssigschaumes wässrige Wasserstoffperoxidlösung, Schaumstabilisator auf Tensidbasis und erforderlichenfalls noch etwas katalytisch den H2O2-Zerfall regelndes Additiv zugesetzt und bläht sich spontan beim Mischvorgang unter Sauerstoffentwicklung auf. Zur Einstellung der entsprechenden Konsistenz der Mischung (Viskosität) wird ein bestimmter Anteil Aluminiumsulfat beigemischt. Es ist einerseits möglich, die Bindemittelsuspension zu transportieren und erst kurz vor dem Abgießen derselben in den zu verfüllenden Hohlraum das Treibmittel Wasserstoffperoxid zuzumischen, sodass die Mischung im Hohlraum selbst aufschäumt oder andererseits alle Komponenten vorzumischen und die aufgeschäumte Suspension in einen Hohlraum oder eine Form einzubringen. Die Hohlräume oder Formen, in die die Suspension eingebracht wird, können beliebig gestaltet sein (Spalten, Hohlblöcke, Ziegel, etc.), wobei die Suspension innerhalb eines einstellbaren Zeitintervalls verarbeitbar bleibt, ehe sie selbsttätig bei normaler Temperatur und bei atmosphärischem Druck zu einem festen porösen Körper aushärtet.It has been found that instead of the reaction of magnesium oxide and magnesium chloride to basic chlorides (Sorelzement) a binder suspension in the form of a thick mushy matrix by means of hydrogen peroxide as a blowing agent and surfactants as foam stabilizer automatically foams and automatically hardens even without chloride content to a porous solid when this mixture of the matrix is an ettringite reacting mixture of calcium aluminate cement (alumina cement), calcium sulfate hemihydrate and a Portland cement and water. This chloride-free matrix in the form of a viscous to mushy mixture is added to produce a liquid foam aqueous hydrogen peroxide solution, surfactant-based foam stabilizer and, if necessary, a little catalytic the H 2 O 2 decomposition-regulating additive and puffs up spontaneously in the mixing process with evolution of oxygen. To set the appropriate consistency of the mixture (viscosity), a certain proportion of aluminum sulfate is added. On the one hand, it is possible to transport the binder suspension and only shortly before pouring it into the cavity to be filled mix the blowing agent hydrogen peroxide, so that the mixture foams in the cavity itself or on the other hand vorzumischen all components and bring the foamed suspension in a cavity or a mold. The cavities or molds into which the suspension is introduced may be of any desired design (gaps, hollow blocks, bricks, etc.), the suspension remaining processable within an adjustable time interval before becoming a solid at normal temperature and atmospheric pressure hardens porous body.
Die mechanischen, bauphysikalischen und thermischen Eigenschaften solcher erhärteter Schaumkörper lassen sich in weiten Grenzen beeinflussen, insbesondere durch die Menge und Konzentration des Treibmittels Wasserstoffperoxidlösung, die das relative Porenvolumen bestimmen. Der Tensidzusatz beeinflusst die Bläschengröße und damit die Porengröße des erstarrten Schaumes. Aluminiumsulphat wird der Mischung zugesetzt, um die für die optimale Schaumstabilität notwendige Viskosität der Suspension einzustellen. Weitere Zusätze sowie die Mischungsverhältnisse der Rezepturkomponenten haben Einfluss auf die katalytische O2-Freisetzung und damit auf die Schnelligkeit des Aufschäumens sowie die Verarbeitbarkeit des Flüssigschaumes.The mechanical, building physical and thermal properties of such hardened foam body can be influenced within wide limits, in particular by the amount and concentration of the blowing agent hydrogen peroxide solution, which determine the relative pore volume. The addition of surfactant influences the bubble size and thus the pore size of the solidified foam. Aluminum sulphate is added to the mixture to adjust the viscosity of the suspension necessary for optimum foam stability. Further additives and the mixing ratios of the formulation components have an influence on the catalytic O 2 release and thus on the speed of foaming and the processability of the liquid foam.
Die Erfindung wird durch nachfolgende Beispiele weiter erläutert:The invention is further explained by the following examples:
Beispiel 1:Example 1:
- 2,7 kg Tonerdezement2.7 kg alumina cement
- 1,5 kg Alpha-Calciumsulfathalbhydrat1.5 kg of alpha-calcium sulfate hemihydrate
- 0,7 kg Portlandzement0.7 kg Portland cement
- 150 g Al2(SO4)3·18H2O150 g of Al 2 (SO 4 ) 3 .18H 2 O
- 25 g Li2CO3 25 g of Li 2 CO 3
- 5 g Zitronensäure5 g of citric acid
- 1,9 kg Wasser1.9 kg of water
- 1,5 kg Wasserstoffperoxid (12% H2O2)1.5 kg of hydrogen peroxide (12% H 2 O 2 )
- 5 g Tensid (Natriumlaurylethersulfat)5 g of surfactant (sodium lauryl ether sulfate)
Beispiel 2:Example 2:
- 2,7 kg Tonerdezement2.7 kg alumina cement
- 1,5 kg Alpha-Calciumsulfathalbhydrat1.5 kg of alpha-calcium sulfate hemihydrate
- 0,7 kg Portlandzement0.7 kg Portland cement
- 150 g Al2(SO4)3·18H2O150 g of Al 2 (SO 4 ) 3 .18H 2 O
- 1,6 kg Wasser1.6 kg of water
- 1,5 kg Wasserstoffperoxid (12% H2O2)1.5 kg of hydrogen peroxide (12% H 2 O 2 )
- 450 g Schmierseife450 g of soft soap
- 200 g Fließmittel (Polycarboxylatether)200 g of flow agent (polycarboxylate ether)
- 50 g Stabilisierungsmittel (Celluloseether)50 g stabilizer (cellulose ether)
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 0148280 [0004] EP 0148280 [0004]
- EP 0199941 [0004] EP 0199941 [0004]
- EP 1069090 [0004] EP 1069090 [0004]
- GB 2250282 [0004] GB 2250282 [0004]
- DE 2617153 [0004] DE 2617153 [0004]
- RU 2306221 [0004] RU 2306221 [0004]
- US 2012/286190 [0004] US 2012/286190 [0004]
- WO 2011/044604 [0004] WO 2011/044604 [0004]
- WO 2011/106816 [0004] WO 2011/106816 [0004]
- WO 2013/185161 [0004] WO 2013/185161 [0004]
- DE 2756227 [0004] DE 2756227 [0004]
- DE 102010005361 [0004] DE 102010005361 [0004]
- US 3973978 [0004] US 3973978 [0004]
- DE 19717330 [0004] DE19717330 [0004]
- EP 0374195 [0004] EP 0374195 [0004]
- EP 0417582 [0004] EP 0417582 [0004]
- EP 2045227 [0004] EP 2045227 [0004]
- US 3729328 [0004] US 3729328 [0004]
- DE 102008058641 [0004, 0004, 0005] DE 102008058641 [0004, 0004, 0005]
- DE 102011109520 [0005] DE 102011109520 [0005]
Claims (12)
Priority Applications (1)
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DE102016001930.1A DE102016001930A1 (en) | 2016-02-18 | 2016-02-18 | Self-foaming and self-hardening inorganic mineral foam |
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DE102016001930.1A DE102016001930A1 (en) | 2016-02-18 | 2016-02-18 | Self-foaming and self-hardening inorganic mineral foam |
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DE102016001930A1 true DE102016001930A1 (en) | 2017-08-24 |
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DE102016001930.1A Withdrawn DE102016001930A1 (en) | 2016-02-18 | 2016-02-18 | Self-foaming and self-hardening inorganic mineral foam |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3636869A1 (en) | 2018-10-12 | 2020-04-15 | heroal- Johann Henkenjohann GmbH & Co. KG | Multi-chamber hollow profile for fire safety doors or windows and method and device for producing such a multi-chamber hollow profile |
WO2022058544A1 (en) * | 2020-09-18 | 2022-03-24 | Holcim Technology Ltd | Method for producing a composite insulating mineral construction element |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3636869A1 (en) | 2018-10-12 | 2020-04-15 | heroal- Johann Henkenjohann GmbH & Co. KG | Multi-chamber hollow profile for fire safety doors or windows and method and device for producing such a multi-chamber hollow profile |
DE102018125362A1 (en) * | 2018-10-12 | 2020-04-16 | Heroal - Johann Henkenjohann Gmbh & Co. Kg | Multi-chamber hollow profile for fire protection doors or windows and method and device for producing such a multi-chamber hollow profile |
WO2022058544A1 (en) * | 2020-09-18 | 2022-03-24 | Holcim Technology Ltd | Method for producing a composite insulating mineral construction element |
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