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AT404589B - MINERAL INSULATING BUILDING MATERIAL AND METHOD FOR THE PRODUCTION THEREOF - Google Patents

MINERAL INSULATING BUILDING MATERIAL AND METHOD FOR THE PRODUCTION THEREOF Download PDF

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Publication number
AT404589B
AT404589B AT101897A AT101897A AT404589B AT 404589 B AT404589 B AT 404589B AT 101897 A AT101897 A AT 101897A AT 101897 A AT101897 A AT 101897A AT 404589 B AT404589 B AT 404589B
Authority
AT
Austria
Prior art keywords
mass
dry
insulating
perlite
mixed
Prior art date
Application number
AT101897A
Other languages
German (de)
Other versions
ATA101897A (en
Original Assignee
Zementwerk Leube Ges M B H
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 Zementwerk Leube Ges M B H filed Critical Zementwerk Leube Ges M B H
Priority to AT101897A priority Critical patent/AT404589B/en
Priority to DE1998118808 priority patent/DE19818808A1/en
Publication of ATA101897A publication Critical patent/ATA101897A/en
Application granted granted Critical
Publication of AT404589B publication Critical patent/AT404589B/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10Coating or impregnating
    • C04B20/1051Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/04Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60Agents for protection against chemical, physical or biological attack
    • C04B2103/65Water proofers or repellants

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Building Environments (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Claims (5)

AT 404 589 B Oie Erfindung bezieht sich auf einen mineralischen Isolierbaustoff und auf ein Verfahren zum Herstellen eines neuen mineralischen Isolierbaustoffes unter Verwendung expandierten Perlites. im Baugewerbe werden bisher zur Wärmedämmung und Kälteisolierung meist geschäumte Kunststoffe verwendet, die hinsichtlich der Umweltbelastung sowohl rohstoffseitig als auch entsorgungsseitig unbefriedigend sind. Darüber hinaus gibt es auch rieselfähiges Isoliermatrial aus expandiertem Perlite oder anderen mineralischen Werkstoffen, das wiederum nur in losen Beschüttungen und damit recht beschränkt einsatzfähig ist. Oer Erfindung liegt daher die Abgabe zugrunde, einen neuen mineralischen Isolierbaustoff zu schaffen, der sich durch seine guten Dämmeigenschaften sowie seine leichte Verarbeitbarkeit und seine Umweltverträglichkeit auszeichnet. Die Erfindung löst diese Aufgabe durch eine Trockenmasse aus expandiertem und mit einem Hydrophobierungsmittel versetztem Perlite und zugemischtem Polyvinylazetat (PVAC), welche Trockenmasse durch Wasserzugabe aushärtbar ist. Dazu wird expandiertes Perlite mit einem Hydrophobierungsmittel bedüst und mit Polyvinylazetat zu einer Trockenmasse vermischt, worauf diese Trockenmasse zur Verwertung als Isolierbaustoff durch Wasserzugabe zu einer erdfeuchten Masse vermengt und dann verarbeitet wird und während des Trocknens aushärtet. Es entsteht ein neuer, extrem leichter, nicht brennbarer mineralischer Isolierstoff, der durch seine wasserabweisende Ausrüstung in seinen Dämmeigenschaften feuchtigkeitsbeständig ist und durch das einflache Vermischen geblähten Perlites mit Hydrophobierungsmitteln und Dispersion eine rationelle Herstellung erlaubt. Die Trockenmasse wird dabei im Herstellerwerk vorbereitet und läßt sich dann bedarfsweise auf der Baustelle od. dgl. mit Wasser bis zu einer verformbaren Masse verrühren, die in die gewünschte Form gebracht, gegebenenfalls leicht verdichtet und aushärten gelassen wird, so daß nach dem Aushärten bis zur Trocknung nicht nur eine entsprechende Formbeständigkeit, sondern auch eine festigkeitserhöhende Stabilität gegeben ist. Eine eventuelle spätere Entsorgung bereitet keine Schwierigkeiten, da der ausgehärtete Isolierbaustoff als Bauschutt gilt und entsprechend behandelt werden kann. Zur Verarbeitung läßt sich die erdfeuchte Masse in Hohlziegel, Mantelsteine, Mauerwerkszwischenräume u. dgl. Isolierräume ein- bzw. hinterfüllen und selbstverständlich läßt sich diese Masse auch werkseitig zu Isolierplatten oder isolierenden Formkörpern verarbeiten. Besonders gute Eigenschaften sind erreichbar, wenn Perlite mit einem Raumgewicht von 70-120 kg/m1 2 und einer Körnung von 0-3 mm sowie zum Hydrophobieren eine Emulsion eines reaktiven Polydimethylsiloxans verwendet wird. Um außerdem eine erdfeuchte, einbaufähige Masse zu erhalten, werden zweckmäßigerweise der Trockenmasse pro m2 etwa 80 -120 I Wasser zugegeben. Ausführungsbeispiel: Expandiertes Perlite mit einem Raumgewicht von 70 - 120 kg/m2 und einer Körnung von 0-3 mm wird einer Hochdruckbodüsung durch eine Emulsion eines reaktiven Polydimethylsiloxans ausgesetzt, wobei 1,2 I Emulsion pro m2 Perlite Verwendung finden. Danach wird dem bedüsten Perlite pro m2 12 kg Polyvinylazetat zugemengt und zu einer Trockenmasse vermischt. Um aus dieser lagerfähigen Trockenmasse verwertbare Isoliermasse zu machen, wird der Trockenmasse in geeigneten Mischern Wasser zugemischt bis eine erdfeuchte formbare Masse entsteht, was bei 80 - 120 I pro m2 erfolgt. Diese Masse kann nun in entsprechende Hohlräume eingefüllt oder zu Formkörpem verarbeitet werden, wobei durchaus eine leichte Verdichtung möglich ist. Die in die endgültige Form gebrachte Masse wird dann bis zur vollen Trocknung aushärten gelassen und es entsteht ein Isolierstoff mit einer Trockenrohdichte zwischen ca. 110-120 kg/m2 und einer Wärmeleitzahl x = 0,047 W/mK. Patentansprüche 1. Mineralischer Isolierhaustoff, gekennzeichnet durch eine Trockenmasse aus expandiertem und mit einem Hydrophobierungsmittel versetztem Perlite und zugemischtem Polyvinylazetat (PVAC), welche Trockenmasse durch Wasserzugabe aushärtbar ist.AT 404 589 B The invention relates to a mineral insulating building material and to a method for producing a new mineral insulating building material using expanded perlites. In the construction industry, foamed plastics have mostly been used to date for thermal insulation and cold insulation, which are unsatisfactory in terms of environmental pollution both on the raw material side and on the disposal side. In addition, there is also free-flowing insulating material made of expanded perlite or other mineral materials, which in turn can only be used in loose fillings and is therefore of very limited use. Oer invention is therefore based on the requirement to create a new mineral insulating building material, which is characterized by its good insulation properties as well as its easy processing and its environmental compatibility. The invention solves this problem by means of a dry mass of expanded perlite mixed with a hydrophobizing agent and admixed polyvinyl acetate (PVAC), which dry mass can be hardened by adding water. To this end, expanded perlite is sprayed with a hydrophobizing agent and mixed with polyvinyl acetate to form a dry mass, whereupon this dry mass is mixed into an earth-moist mass for use as an insulating building material by adding water, and then processed and cured during drying. The result is a new, extremely light, non-combustible mineral insulating material, which is water-repellent due to its insulating properties and is moisture-resistant due to the simple mixing of expanded perlites with water repellents and dispersion. The dry matter is prepared in the manufacturer's plant and can then be mixed with water or a like at the construction site to a deformable mass, which is brought into the desired shape, optionally slightly compressed and allowed to harden, so that after hardening until Drying is not only a corresponding dimensional stability, but also a strength-increasing stability is given. Possible later disposal is not a problem, since the hardened insulating building material is considered building rubble and can be treated accordingly. For processing, the earth-moist mass can be used in hollow bricks, casing stones, interstices in masonry and the like. Filling or backfilling insulation spaces and of course this mass can also be processed in the factory to form insulating plates or insulating moldings. Particularly good properties can be achieved if perlite with a density of 70-120 kg / m 1 2 and a grain size of 0-3 mm as well as an emulsion of a reactive polydimethylsiloxane is used for hydrophobization. In order to also obtain an earth-moist, ready-to-install mass, about 80-120 l of water are expediently added to the dry mass per m2. Exemplary embodiment: Expanded perlite with a density of 70-120 kg / m2 and a grain size of 0-3 mm is subjected to high pressure spraying with an emulsion of a reactive polydimethylsiloxane, 1.2 l emulsion per m2 of perlite being used. Thereafter, 12 kg of polyvinyl acetate is added to the sprayed perlite and mixed to a dry mass. In order to make usable insulating material from this storable dry material, water is added to the dry material in suitable mixers until an earth-moist moldable material is formed, which occurs at 80 - 120 I per m2. This mass can now be poured into corresponding cavities or processed into shaped bodies, with easy compression being possible. The mass brought into the final shape is then allowed to harden to full drying and an insulating material is formed with a dry bulk density between approx. 110-120 kg / m2 and a coefficient of thermal conductivity x = 0.047 W / mK. 1. Mineral insulating house material, characterized by a dry mass of expanded and mixed with a hydrophobicizing agent perlite and admixed polyvinyl acetate (PVAC), which dry mass can be hardened by adding water. 2 1 Verfahren zum Herstellen eines neuen mineralischen Isolierhaustoffes unter Verwendung expandierten Perlites, dadurch gekennzeichnet, daß expandiertes Perlite mit einem Hydrophobierungsmittel be-düst und mit Polyvinylazetat zu einer Trockenmasse vermischt wird, worauf diese Trockenmasse zur 2 Verwertung als Isolierbaustoff durch Wasserzugabe zu einer erdfeuchten Masse vermengt und dann verarbeitet wird und während des Trocknens aushärtet. AT 404 589 B2 1 Process for producing a new mineral insulating house fabric using expanded perlites, characterized in that expanded perlite is sprayed with a hydrophobizing agent and mixed with polyvinyl acetate to form a dry matter, whereupon this dry matter is mixed for use as an insulating building material by adding water to an earth-moist mass and then processed and cured while drying. AT 404 589 B 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet daß Perlite mit einem Raumgewicht von 70 -120 kg/m3 und einer Körnung von 0 - 3 mm verwendet wird.3. The method according to claim 2, characterized in that perlite with a density of 70-120 kg / m3 and a grain size of 0 - 3 mm is used. 4. Verfahren nach Anspruch 2 oder 3. dadurch gekennzeichnet daß zum Hydrophobieren eine Emulsion eines reaktiven Polydimethylsiloxans verwendet wird.4. The method according to claim 2 or 3, characterized in that an emulsion of a reactive polydimethylsiloxane is used for waterproofing. 5. Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet daß der Trockenmasse pro m3 etwa 80 - 120 I Wasser zugegeben werden. 35. The method according to any one of claims 2 to 4, characterized in that about 80-120 l of water are added to the dry matter per m3. 3rd
AT101897A 1997-06-12 1997-06-12 MINERAL INSULATING BUILDING MATERIAL AND METHOD FOR THE PRODUCTION THEREOF AT404589B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT101897A AT404589B (en) 1997-06-12 1997-06-12 MINERAL INSULATING BUILDING MATERIAL AND METHOD FOR THE PRODUCTION THEREOF
DE1998118808 DE19818808A1 (en) 1997-06-12 1998-04-27 Economically produced, environmentally friendly insulating building material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT101897A AT404589B (en) 1997-06-12 1997-06-12 MINERAL INSULATING BUILDING MATERIAL AND METHOD FOR THE PRODUCTION THEREOF

Publications (2)

Publication Number Publication Date
ATA101897A ATA101897A (en) 1998-05-15
AT404589B true AT404589B (en) 1998-12-28

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AT101897A AT404589B (en) 1997-06-12 1997-06-12 MINERAL INSULATING BUILDING MATERIAL AND METHOD FOR THE PRODUCTION THEREOF

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DE (1) DE19818808A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006005899A1 (en) * 2006-02-09 2007-10-11 Knauf Perlite Gmbh building board

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102898113A (en) * 2012-10-22 2013-01-30 北京工业大学 Hydrophobic expanded perlite heat insulating product and preparation method thereof
CN103964741A (en) * 2014-05-04 2014-08-06 朱希桥 Energy-saving and environment-friendly plate and preparation method thereof
JP6674558B2 (en) 2016-04-20 2020-04-01 ダウ シリコーンズ コーポレーション Lithium alkylsiliconate composition, coating film, and method for producing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237485B (en) * 1964-02-21 1967-03-23 Bayer Ag Process for improving the surface properties of lightweight aggregates
SU924019A1 (en) * 1980-07-22 1982-04-30 Nii Kamnya Silikatov Raw mixture for making heat and sound insulating products
DE3534706A1 (en) * 1985-09-28 1987-04-02 Kramer Gmbh & Co Kg Hans Non-combustible or low-flammability lightweight composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237485B (en) * 1964-02-21 1967-03-23 Bayer Ag Process for improving the surface properties of lightweight aggregates
SU924019A1 (en) * 1980-07-22 1982-04-30 Nii Kamnya Silikatov Raw mixture for making heat and sound insulating products
DE3534706A1 (en) * 1985-09-28 1987-04-02 Kramer Gmbh & Co Kg Hans Non-combustible or low-flammability lightweight composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006005899A1 (en) * 2006-02-09 2007-10-11 Knauf Perlite Gmbh building board
DE102006005899B4 (en) * 2006-02-09 2009-01-08 Knauf Perlite Gmbh building board

Also Published As

Publication number Publication date
DE19818808A1 (en) 1998-12-17
ATA101897A (en) 1998-05-15

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