DE19818808A1 - Economically produced, environmentally friendly insulating building material - Google Patents

Economically produced, environmentally friendly insulating building material

Info

Publication number
DE19818808A1
DE19818808A1 DE1998118808 DE19818808A DE19818808A1 DE 19818808 A1 DE19818808 A1 DE 19818808A1 DE 1998118808 DE1998118808 DE 1998118808 DE 19818808 A DE19818808 A DE 19818808A DE 19818808 A1 DE19818808 A1 DE 19818808A1
Authority
DE
Germany
Prior art keywords
building material
insulating building
water
perlite
mass
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.)
Withdrawn
Application number
DE1998118808
Other languages
German (de)
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.)
ZEMENTWERK LEUBE GmbH
Original Assignee
ZEMENTWERK LEUBE 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 ZEMENTWERK LEUBE GmbH filed Critical ZEMENTWERK LEUBE GmbH
Publication of DE19818808A1 publication Critical patent/DE19818808A1/en
Withdrawn legal-status Critical Current

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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
    • C04B20/00—Use 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
    • C04B20/10—Coating or impregnating
    • C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
    • 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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/65—Water proofers or repellants

Abstract

Mineral insulating building material consists of a dry mix of expanded perlite treated with water-proofing agent and polyvinyl acetate, which can be hardened by adding water. Also claimed is a method of producing the material. Preferably the perlite has a bulk density of 70-120 kg/m<3> and granulation of 0-3 mm. An emulsion of a reactive polydimethylsiloxane is used for waterproofing.

Description

Die Erfindung bezieht sich auf einen mineralischen Isolierbaustoff und auf ein Verfahren zum Herstellen eines neuen mineralischen Isolierbaustoffes unter Verwendung expandierten Perlites.The invention relates to a mineral insulating building material and to a method to produce a new mineral insulating building material using expanded 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 Isolierma­ terial aus expandiertem Perlite oder anderen mineralischen Werkstoffen, das wiederum nur in losen Beschüttungen und damit recht beschränkt einsatzfähig ist.So far, foams have mostly been used in the construction industry for thermal insulation and cold insulation Plastics used, both in terms of environmental impact and raw materials are unsatisfactory on the disposal side. There is also a free-flowing insulating material material made of expanded perlite or other mineral materials, which in turn only in loose fillings and is therefore of limited use.

Der Erfindung liegt daher die Aufgabe zugrunde, einen neuen mineralischen Isolierbaustoff zu schaffen, der sich durch seine guten Dämmeigenschaften sowie seine leichte Verarbeit­ barkeit und seine Umweltverträglichkeit auszeichnet.The invention is therefore based on the object of a new mineral insulating building material to create, which is characterized by its good insulation properties and its easy processing availability and its environmental compatibility.

Die Erfindung löst diese Aufgabe durch eine Trockenmasse aus expandiertem und mit einem Hydrophobierungsmittel versetztem Perlite und zugemischtem Polyvinylazetat (PVA), 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 Wasserzug­ abe zu einer erdfeuchten Masse vermengt und dann verarbeitet wird und während des Trocknens aushärtet. The invention solves this problem by using a dry mass of expanded and a water repellant mixed with perlite and admixed polyvinyl acetate (PVA), which dry matter can be hardened by adding water. This is expanded perlite sprayed with a water repellent and with polyvinyl acetate to a dry mass mixed, whereupon this dry matter for recycling as an insulating building material by pulling water abe mixed to an earth moist mass and then processed and during the Drying hardens.  

Es entsteht ein neuer, extrem leichter, nicht brennbarer mineralischer Isolierstoff, der durch seine wasserabweisende Ausrüstung in seinen Dämmeigenschaften feuchtigkeitsbeständig ist und durch das einfache Vermischen geblähten Perlites mit Hydrophobierungsmitteln und Dispersion eine rationelle Herstellung erlaubt. Die Trockenmasse wird dabei im Hersteller­ werk 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, gegebenen­ falls leicht verdichtet und aushärten gelassen wird, so daß nach dem Aushärten bis zur Trocknung nicht nur eine entsprechende Formbeständigkeit, sondern auch eine festigkeits­ erhöhende Stabilität gegeben ist. Eine eventuelle spätere Entsorgung bereitet keine Schwie­ rigkeiten, 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 ver­ arbeiten.A new, extremely light, non-combustible mineral insulating material is created, which its water-repellent finish is moisture-resistant in its insulating properties is and by simply mixing expanded perlites with water repellents and Dispersion allows rational production. The dry matter is in the manufacturer factory prepared and can then be used on site or the like with water Mix to a deformable mass, given the desired shape if slightly compacted and allowed to harden, so that after hardening up to Drying not only a corresponding dimensional stability, but also a strength increasing stability is given. Any later disposal is no problem due to the fact that the hardened insulating building material is considered building rubble and is treated accordingly can be. For processing, the earth-moist mass can be placed in hollow bricks, casing stones, Masonry spaces and Fill or backfill isolation rooms and of course this mass can also be made in the factory to form insulating plates or insulating moldings work.

Besonders gute Eigenschaften sind erreichbar, wenn Perlite mit einem Raumgewicht von 70-120 kg/m3 und einer Körnung von 0-3 mm sowie zum Hydrophobieren eine Emulsion eines reaktiven Polydimethylsiloxans verwendet wird. Um außerdem eine erdfeuchte, ein baufähige Masse zu erhalten, werden zweckmäßigerweise der Trockenmasse pro m3 etwa 80-120 l Wasser zugegeben.Particularly good properties can be achieved if perlite with a density of 70-120 kg / m 3 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, buildable mass, about 80-120 l of water are expediently added to the dry mass per m 3 .

AusführungsbeispielEmbodiment

Expandiertes Perlite mit einem Raumgewicht von 70-120 kg/m3 und einer Körnung von 0-3 mm wird einer Hochdruckbedüsung durch eine Emulsion eines reaktiven Polydimethyl­ siloxans ausgesetzt, wobei 1,2 l Emulsion pro nie Perlite Verwendung finden. Danach wird dem bedüsten Perlite pro m3 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 l pro m3 erfolgt. Diese Masse kann nun in ent­ sprechende Hohlräume eingefüllt oder zu Formkörpern 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/m3 und einer Wärmeleitzahl λ = 0,047 W/mK.Expanded perlite with a density of 70-120 kg / m 3 and a grain size of 0-3 mm is subjected to a high-pressure spraying using an emulsion of a reactive polydimethyl siloxane, 1.2 l emulsion per perlite never being used. Thereafter, 12 kg of polyvinyl acetate are added to the sprayed perlite per m 3 and mixed to a dry mass. In order to make usable insulating mass from this storable dry mass, water is mixed into the dry mass in suitable mixers until an earth-moist moldable mass is formed, which takes place at 80-120 l per m 3 . This mass can now be poured into corresponding cavities or processed into shaped bodies, with slight 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 / m 3 and a coefficient of thermal conductivity λ = 0.047 W / mK.

Claims (5)

1. Mineralischer Isolierbaustoff, gekennzeichnet durch eine Trockenmasse aus expan­ diertem und mit einem Hydrophobierungsmittel versetztem Perlite und zugemischtem Poly­ vinylazetat (PVA), welche Trockenmasse durch Wasserzugabe aushärtbar ist.1. Mineral insulating building material, characterized by a dry mass of expanded and mixed with a hydrophobicizing agent perlite and admixed poly vinyl acetate (PVA), which dry mass can be hardened by adding water. 2. Verfahren zum Herstellen eines neuen mineralischen Isolierbaustoffes unter Ver­ wendung expandierten Perlites, dadurch gekennzeichnet, daß expandiertes Perlite mit einem Hydrophobierungsmittel bedüst und mit Polyvinylazetat zu einer Trockenmasse ver­ mischt wird, worauf diese Trockenmasse zur Verwertung als Isolierbaustoff durch Wasser­ zugabe zu einer erdfeuchten Masse vermengt und dann verarbeitet wird und während des Trocknens aushärtet.2. Method for producing a new mineral insulating building material under Ver Use expanded perlites, characterized in that expanded perlite with sprayed with a water repellent and ver with polyvinyl acetate to a dry matter is mixed, whereupon this dry matter for use as an insulating building material by water admixed to an earth moist mass and then processed and during the Drying hardens. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß Perlite mit einem Raum­ gewicht 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 / m 3 and a grain size of 0-3 mm is used. 4. Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß zum Hydrophobie­ ren eine Emulsion eines reaktiven Polydimethylsiloxans verwendet wird.4. The method according to claim 2 or 3, characterized in that for hydrophobicity an emulsion of a reactive polydimethylsiloxane is used. 5. Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß der Trockenmasse pro m3 etwa 80-120 l Wasser zugegeben werden.5. 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 m 3 .
DE1998118808 1997-06-12 1998-04-27 Economically produced, environmentally friendly insulating building material Withdrawn DE19818808A1 (en)

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 (1)

Publication Number Publication Date
DE19818808A1 true DE19818808A1 (en) 1998-12-17

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ID=3504995

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998118808 Withdrawn DE19818808A1 (en) 1997-06-12 1998-04-27 Economically produced, environmentally friendly insulating building material

Country Status (2)

Country Link
AT (1) AT404589B (en)
DE (1) DE19818808A1 (en)

Cited By (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
US10829505B2 (en) 2016-04-20 2020-11-10 Dow Silicones Corporation Lithium alkylsiliconate composition, coating, and method of making same

Families Citing this family (1)

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

Family Cites Families (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 (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
US10829505B2 (en) 2016-04-20 2020-11-10 Dow Silicones Corporation Lithium alkylsiliconate composition, coating, and method of making same

Also Published As

Publication number Publication date
AT404589B (en) 1998-12-28
ATA101897A (en) 1998-05-15

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