DE2137483B2 - Process for the production of ceramically bound expanded clay - Google Patents

Process for the production of ceramically bound expanded clay

Info

Publication number
DE2137483B2
DE2137483B2 DE19712137483 DE2137483A DE2137483B2 DE 2137483 B2 DE2137483 B2 DE 2137483B2 DE 19712137483 DE19712137483 DE 19712137483 DE 2137483 A DE2137483 A DE 2137483A DE 2137483 B2 DE2137483 B2 DE 2137483B2
Authority
DE
Germany
Prior art keywords
expanded clay
elements
production
proportion
batch
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.)
Granted
Application number
DE19712137483
Other languages
German (de)
Other versions
DE2137483C3 (en
DE2137483A1 (en
Inventor
Auf Nichtnennung Antrag
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.)
RAVOLZHAUSEN DACHZIEGELWERKE
Original Assignee
RAVOLZHAUSEN DACHZIEGELWERKE
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 RAVOLZHAUSEN DACHZIEGELWERKE filed Critical RAVOLZHAUSEN DACHZIEGELWERKE
Priority to DE19712137483 priority Critical patent/DE2137483B2/en
Priority to AT646172A priority patent/AT321186B/en
Priority to CH1121072A priority patent/CH581083A5/xx
Publication of DE2137483A1 publication Critical patent/DE2137483A1/en
Publication of DE2137483B2 publication Critical patent/DE2137483B2/en
Application granted granted Critical
Publication of DE2137483C3 publication Critical patent/DE2137483C3/de
Granted 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
    • C04B28/24—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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches

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)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Description

Die Erfindung bezieht sich auf i-in Verfahren zur Hersteilung von keramisch gebundenem Blähton.The invention relates to i-in methods for Manufacture of ceramic-bound expanded clay.

Mit dem üblichen Blähton werden Fassaden clen.ente mittlerer Größe, wie Fassadenplatten, Kaminplatten und dgl., hergestellt. Für Großelemente eignet sich der normalerweise verwendete Blähton nicht, weil er meistens während der Trocknung in der Form absinkt und dann eine unterschiedliche Dicke der mit Blähton hergestellten Platten entsteht.With the usual expanded clay, facades are clen.ente of medium size, such as facade panels, firebacks and the like. The normally used expanded clay is suitable for large elements not because it usually sinks in the mold during drying and then has a different thickness of the panels made with expanded clay.

Das Verfahren gemäß der Erfindung beruht auf einem Schüttverfahren, indem eine bestimmte Blähtonzusammensetzung in Formen gegossen wird, wie dieses beim Betonieren der Fall ist. Das erfindungsgemäße Verfahren zeichnet sich dadurch aus, daß erstens eine Gemengemasse von 70 bis 85 1Vo Quarz, bis 5 °/o Natriumwasserglas und zum Rest gemahlener Blähton und zweitens eine Gemengemasse aus bis 60 0/n Quarz, 15 bis 25 °/o Tonerde, ungefähr "/ο Fe11On, etwa I bis 5 1Vo Bariumkarbonat und zum Rest gemahlener Blähton hergestellt werden, diese mit einem Anteil von 70 °/n der ersten Gemengemasse und einem Anteil von 30 % der zweiten Gemengemasse zusammengemischt werden und unter Zuschüttung von Wasser in einem Rührwerk auf Schlickerkonsistenz gebracht. Für das Gießen >n Formen wird folgendes Mischverhältnis verwendet:
20 1V1, 2 Komponenten Tonschlicker
80 °/o Blähton in der gewünschten Kornfraktion.The method according to the invention is based on a pouring method in that a certain expanded clay composition is poured into molds, as is the case with concreting. The inventive method is characterized in that firstly a mixture composition of 70 to 85 1 Vo quartz, and 5 ° / o sodium water glass and ground to the rest of expanded clay and secondly a mixture mass of to 60 0 / n silica, 15 to 25 ° / o alumina , about "/ ο Fe 11 O n , about 1 to 5 1 Vo barium carbonate and expanded clay ground to the rest are produced, these are mixed together with a proportion of 70% of the first batch and a proportion of 30% of the second batch and below The pouring of water in an agitator brought to the slip consistency. The following mixing ratio is used for pouring> n molds:
20 1 V 1 , 2 component clay slip
80% expanded clay in the desired grain size.

ίο Die gegossenen Formen bzw. die gefertigten Rohelemente werden im Vorwärmer einem Abbindeprozeß und im Brennofen einer Sintertemperatur von 1000 bis 1200: C unterworfen.ίο The cast forms or the manufactured raw elements are subjected to a setting process in the preheater and a sintering temperature of 1000 to 1200 : C in the kiln.

Der hohe Quarzanteil sichert die Schwindungsstabilität. Der iriable Anteil an Wasserglas dient der optimalen ■ eßfestigkeit und gilt als V :rfiüssigungsbeschleuniger und Konsistenzstabilisator. Über das Wasserglas werden Elektrolyte zugesetzt bzw. wirksam. Soda oder Ätznatron als Elektrolyte sollten wegen des Tonerdegehaltes in der zweiten Gemengcma.sse möglichst nicht \erwendet werden.The high proportion of quartz ensures the shrinkage stability. The iriable proportion of water glass is used optimum ■ eating stability and is considered a fluid accelerator and consistency stabilizer. Electrolytes are added or effective via the water glass. Soda or caustic soda as electrolytes should be used because of the alumina content in the second mixture if possible not \ used.

Die Menge des Eisenoxids in der zweiten Gemengemasse ist im Rohstoff selbst enthalten. Die Menge des Bariumkarbonats ist gegen den FinfiußThe amount of iron oxide in the second batch is contained in the raw material itself. the Amount of barium carbonate is against the finfiow

as löslicher Salze wirksam, weil diese sonst beim Fertigprodukt zu schädlichen und unansehnlichen Ausblühungen führen würden. Beim Vorhandensein solcher Salze wird die Wirksamkeit der Elektrolyte aufgehoben. The soluble salts are effective because they would otherwise be found in the finished product would lead to harmful and unsightly efflorescence. In the presence of such Salts neutralizes the effectiveness of the electrolytes.

Die Konsistenz des Einbindeschlickers muß so sein, daß vor der Beimengung des Blähtons der Schlicker von einem eingetauchten Mischgerät noch als Faden abläuft. Diese Schlickerzusammensetzung hat einen .ingewöhnlich hohen und weiten Sinterbereich von 750 bis 1050 1C. Der Sinterpunkt des Blähtons liegt bei 1150 bis 1200" C. Für die Herstellung von 1 m:! keramisch gebundenem Blähton ist folgendes Mischverhältnis erforderlich:
20" η 2 Komponenten TonschlickerThe consistency of the embedding slip must be such that the slip still runs off as a thread from an immersed mixer before it is added to the expanded clay. This slip composition has an unusually high and wide sintering range of 750 to 1050 1 C. The sintering point of the expanded clay is 1150 to 1200 "C. The following mixing ratio is required for the production of 1 m:! Ceramic-bound expanded clay:
20 "η 2 component clay slip

80 0Zo Blähton in der gewünschten Kornfraktion.80 0 Zo expanded clay in the desired grain fraction.

Die einzelnen Bestandteile der beiden Gemengemassen sind in ihren Grenzfälien beigefügt, weil sie sich genaugenommen nach der Anwendungsmöglichkeit richten, betriebsbedingt und, wie am Beispiel des Eisenoxids ersichtlich, abhängig von den Ausgangsrohstoffen sind.The individual components of the two mixtures are included in their Grenzfälien because they Strictly speaking, depend on the possible application, depending on the operation and, as in the example of the iron oxide, depending on the starting raw materials.

Claims (1)

Patentanspruch:Claim: Verfahren zur Herstellung von keramisch gebundenem Blähton für Bauelemente, wie Fassadenelemente. Dachelemente. Wandelemente. Isolierelemente und insbesondere große Elemente dieser Art. dadurch gekennzeichnet, daß erstens eine Gemengemasse von 70 bis 85 °,Ό Ouarz. 1 bis 5 °/o Natriumwasserglas und zürn Rest gemahlener Blähton und zweitens eine Gemengemasse aus 40 bis 60 °/(, Quarz. 15 bis 25 1V0 Tonerde, ungefähr 7 «/„ Fe5O.,. etwa 1 bis 5 °/o Büriumkarbonat und zum Rest gemahlener Blähton hergestellt werden, diese mit einem Anteil von 70% der ersten Gemengemasse und einem Anteil von 30 u/0 der zweiten Gemengemasse zusammengemischt werden, durch Beimengung von Wasser auf Schlickerkonsistenz gebracht, mit handelsüblichem Blähton im Verhältnis 20 zu 80 0Zo vermengt, in Formen gegossen und in einem Brennofen bei einer Sintertemperatur von 1000 bis 1200 C keramisch eebunden werden.Process for the production of ceramically bonded expanded clay for building elements such as facade elements. Roof elements. Wall elements. Insulating elements and especially large elements of this type. Characterized in that, firstly, a mixture mass of 70 to 85 °, Ό Ouarz. 1 to 5 ° / o sodium water glass and Ziirn residual ground expanded clay and secondly a mixture mass from 40 to 60 ° / (, quartz. 15 to 25 1 V 0 alumina, about 7 "/" Fe 5 O.,. About 1 to 5 ° / o Burium carbonate and the rest of the ground expanded clay are produced, these are mixed together with a proportion of 70% of the first batch and a proportion of 30 u / 0 of the second batch, brought to a slip consistency by adding water, with commercial expanded clay in a ratio of 20 to 80 0 Zo mixed, poured into molds and ceramically bonded in a kiln at a sintering temperature of 1000 to 1200 C.
DE19712137483 1971-07-27 1971-07-27 Process for the production of ceramically bound expanded clay Granted DE2137483B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19712137483 DE2137483B2 (en) 1971-07-27 1971-07-27 Process for the production of ceramically bound expanded clay
AT646172A AT321186B (en) 1971-07-27 1972-07-27 Process for the production of ceramically bound expanded clay
CH1121072A CH581083A5 (en) 1971-07-27 1972-07-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712137483 DE2137483B2 (en) 1971-07-27 1971-07-27 Process for the production of ceramically bound expanded clay

Publications (3)

Publication Number Publication Date
DE2137483A1 DE2137483A1 (en) 1973-03-22
DE2137483B2 true DE2137483B2 (en) 1973-09-13
DE2137483C3 DE2137483C3 (en) 1974-04-18

Family

ID=5814932

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712137483 Granted DE2137483B2 (en) 1971-07-27 1971-07-27 Process for the production of ceramically bound expanded clay

Country Status (3)

Country Link
AT (1) AT321186B (en)
CH (1) CH581083A5 (en)
DE (1) DE2137483B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4208155A1 (en) * 1992-03-13 1993-09-16 Annawerk Gmbh Light refractory ceramic material - has spherical pores formed by hollow sphere addn. to starting material
DE4410242A1 (en) * 1994-03-24 1994-08-25 Wolfgang Dipl Ing Jehra Ceramic bonding and encapsulation of expanded clay

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4208155A1 (en) * 1992-03-13 1993-09-16 Annawerk Gmbh Light refractory ceramic material - has spherical pores formed by hollow sphere addn. to starting material
DE4410242A1 (en) * 1994-03-24 1994-08-25 Wolfgang Dipl Ing Jehra Ceramic bonding and encapsulation of expanded clay

Also Published As

Publication number Publication date
DE2137483C3 (en) 1974-04-18
DE2137483A1 (en) 1973-03-22
AT321186B (en) 1975-03-25
CH581083A5 (en) 1976-10-29

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee