DE385454C - Process for the production of stones, slabs and other bodies from a mixture of plaster of paris and sand - Google Patents

Process for the production of stones, slabs and other bodies from a mixture of plaster of paris and sand

Info

Publication number
DE385454C
DE385454C DEB108401D DEB0108401D DE385454C DE 385454 C DE385454 C DE 385454C DE B108401 D DEB108401 D DE B108401D DE B0108401 D DEB0108401 D DE B0108401D DE 385454 C DE385454 C DE 385454C
Authority
DE
Germany
Prior art keywords
plaster
paris
sand
bodies
mixture
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.)
Expired
Application number
DEB108401D
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.)
CARL BRANDT DIPL ING
Original Assignee
CARL BRANDT DIPL ING
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 CARL BRANDT DIPL ING filed Critical CARL BRANDT DIPL ING
Priority to DEB108401D priority Critical patent/DE385454C/en
Application granted granted Critical
Publication of DE385454C publication Critical patent/DE385454C/en
Expired 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
    • C04B11/00—Calcium sulfate cements
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
    • 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
    • C04B28/14—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 calcium sulfate cements
    • 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
    • C04B28/18—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 mixtures of the silica-lime type
    • 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

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)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

Verfahren zur Herstellung von Steinen, Platten und sonstigen Körpern aus einem Gemenge von Gips und Sand. Gipshaltige Kunststeinmassen werden bekanntlich dargestellt, indem man gebrannten Gips unter Beimengung verschiedener Stoffe mit Wasser abbinden läßt. Von besonderer Bedeutung sind die Gipsdielen und -platten. .Sie bestehen aus einer Stuckgipsmasse mit Einlagen von Schilfrohr, Bambus, Latten u. dgl., die, ohne irgendeine chemische Reaktion eingegangen zu sein, in der Gipsmasse unverändert eingelagert sind. Infolge der großen Porosität dieser Platten und der Wasserlöslichkeit des Stuckgipses sind derartige Gipsfabrikate gegen Feuchtigkeit sorgfältig zu schützen, was gewöhnlich durch einen Teeranstrich geschieht.Process for the production of stones, slabs and other bodies from a mixture of plaster of paris and sand. Artificial stone masses containing gypsum are known represented by burning plaster of paris with the addition of various substances Lets water set. The plasterboards and boards are of particular importance. They consist of a stucco plaster mass with inlay of reeds, bamboo, slats and the like, which, without having entered into any chemical reaction, in the gypsum mass are stored unchanged. As a result of the large porosity of these plates and the The water-solubility of the stucco plaster is such plaster of paris against moisture carefully protect what is usually done by a tar paint.

Das vorliegende neue Verfahren liefert Gipskörper, die sich ohne besondere Schutzmittel gegen Nässe überall verwenden lassen und sich durch ihre Festigkeit auszeichnen.The present new process provides plaster of paris bodies that can be removed without any special Protective agents against moisture can be used anywhere and are characterized by their strength distinguish.

Nach der Erfindung wird gebrannter Gips nach Mahlung mit Sand gemischt. Darauf wird die Masse nach Formung in einen Härtekessel gebracht, wo der Formling unter Druck Wasserdampf ausgesetzt ist. Hierdurch wird neben dem gewöhnlichen Abbinden des Gipses ein Aufschließen der Kieselsäure der .Sandkörneroberfläche bewirkt, womit eine Verbindung mit dem Kalk des Gipses zu Kalziumsilikat verknüpft ist. Während bisher schon ein geringer Sandzusatz die Festigkeit des Gipses verringerte, erhält man nach dem neuen Verfahren infolge der chemischen Einwirkungen zwischen dem Gips und dem Sand Gipskörper von bedeutender Festigkeit. Es kommt sowohl Stuckgips als auch Estrichgips in Frage. Der Druck des Härtedampfes kann bis zu der in der Kalksandsteinindustrie üblichen Höhe gesteigert werden.According to the invention, plaster of paris is mixed with sand after grinding. The mass is then brought into a hardening kettle after it has been formed, where the molding exposed to water vapor under pressure. This is in addition to the usual setting of the plaster of paris causes a breakdown of the silica of the sand grain surface, with which a compound with the lime of the gypsum is linked to calcium silicate. While So far, a small addition of sand has already reduced the strength of the gypsum one according to the new process as a result of the chemical effects between the plaster of paris and the sand gypsum body of considerable strength. It comes both as plaster of paris screed plaster is also an option. The pressure of the hardening steam can be up to that in the sand-lime brick industry usual height can be increased.

Ferner wurde gefunden, daß auch Gemische aus Gips, Sand und Kalk ausgezeichnete Körper liefern, wenn man sie einer derartigen Behandlung unterwirft.It has also been found that mixtures of plaster of paris, sand and lime are excellent Bodies deliver when subjected to such treatment.

An Stelle der Mischung von Gips und Sand ist weiter das nach dem Verfahren des Patents 3648o4 aus Gips und Sand erhaltene Brenngut verwendbar. In diesem Fall kommt auch in Betracht, einen ÜberSChuß von unzersetztem Gips vorwalten zu lassen. Ferner ist die Mahlung des Brenngutes vor der Weiterverarbeitung angebracht. Es kommt dann zu der aus dem Gips herrührenden Härtewirkung auch die des gebrannten Kalkes bzw. schon gebildeten Kalksilikates.Instead of the mixture of plaster of paris and sand, there is still that after the procedure of the patent 3648o4 obtained from plaster of paris and sand can be used. In this case it is also possible to have an excess of undecomposed gypsum prevail. Furthermore, it is advisable to grind the material to be fired before further processing. It then, in addition to the hardening effect of the plaster of paris, that of the fired one comes as well Lime or calcium silicate that has already formed.

Es hat sich auch als vorteilhaft erwiesen, die Gemische vor der Formung mit einer schwachen Wasserglaslösung zu versetzen.It has also been found advantageous to apply the mixtures prior to molding to add a weak water glass solution.

Als weitere Zusätze sind Kohlenaschen und gewisse Chloride, wie Magnesiumchlorid, vorteilhaft.Other additives are coal ash and certain chlorides, such as magnesium chloride, advantageous.

Man kann die neuartigen Gipskörper mit Einlagen versehen, die aus kieselsäurehaltigen Gräsern, wie Riedgräsern, .Schilfarten u. dgl., bestehen. Verwendet man andere Stoffe, z. B. Kokosfasern, so erzeugt man den Kieselsäuregehalt künstlich, indem man diese mit Wasserglas tränkt. Die Einlagen werden dem Gips-Sand-Gemisch bei der Formung zugefügt und die so erhaltenen Körper in gleicher Weise, wie oben angegeben, behandelt. Infolge des Aufschlusses der Kieselsäure, die in den Einlagen enthalten ist, wird eine innige Verknospung der Einlagen mit der sie umgebenden Masse erreicht, wodurch die Gipskörlier ein besonders festes Gefüge erhalten.The new plaster of paris bodies can be provided with inlays made of Silica-containing grasses, such as sedge grasses, reed species and the like. Used one other substances, z. B. coconut fibers, the silica content is produced artificially, by soaking them with a glass of water. The deposits are made of the gypsum-sand mixture added during molding and the bodies thus obtained in the same way as above specified, treated. As a result the digestion of the silica, which is contained in the deposits, is an intimate budding of the deposits with of the surrounding mass, which gives the plaster of paris a particularly solid Preserve the structure.

Auf diese Weise ist es dem Erfinder gelungen, aus Gips und Sand unmittelbar brauchirre Körper herzustellen. Die Größe des damit verbundenen Fortschrittes liegt aber in den vielen Verwendungsmöglichkeiten dieser Körper, da sie erstens leicht sind und zweitens ohne jede weitere Nachbehandlung allen Witterungseinflüssen widerstehen.In this way, the inventor succeeded in working out of plaster of paris and sand directly to make useless bodies. The magnitude of the progress associated therewith lies but in the many uses of this body, firstly because it is light and, secondly, withstand all weather conditions without any further treatment.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung von Steinen, Platten und sonstigen Körpern aus einem Gemenge von Gips und Sand, dadurch gekennzeichnet, daß die Masse nach Formung durch Dampfdruck gehärtet wird. Ausführungsform des Verfahrens nach Anspruch i, dadurch gekennzeichnet, daß dem Gips-S.rr_l-Getiieiige Kalk zugeinischt wird. 3. Ausführungsform des Verfahrens nach Anspruch i und 2, dadurch gekennzeichnet, daß ein aus Gips und Sand durch Brennen gefertigter Mörtelbildner be -utzt wird, wobei auch mit einem Überschuß von Gips gearbeitet werden kann. Ausführungsform des Verfahrens nach Anspruch i bis 3, dadurch gekennzeichnet, daß den Gemischen verdünnte Wasserglaslösung zugesetzt wird. 5. Ausführungsform des Verfahrens nach Anspruch i bis .t, dadurch gekennzeichnet, daß als weitere Zusätze Kohlenaschen und salzsaure Salze, wie 1lagnesiumchlorid, benutzt werden. 6. Ausführungsform des Verfahrens nach Anspruch i bis 5, dadurch gekennzeichnet, daß kieselsäurehaltige Gräser, wie Riedgräser, Schilfarten u. dgl., dem Gips-Sand-Gemenge als Einlagen zugefügt werden. 7. Ausführungsform des Verfahrens nach Anspruch i bis 6, dadurch gekennzeichnet, daß als Einlagen Stoffe verwendet werde:i, die mit Wasserglas getränkt sind. PATENT CLAIMS: i. Process for the production of stones, slabs and other bodies from a mixture of plaster of paris and sand, characterized in that the mass is hardened by steam pressure after molding. Embodiment of the method according to claim i, characterized in that lime is added to the gypsum S.rr_l-particles. 3. Embodiment of the method according to claim i and 2, characterized in that a mortar former made of plaster of paris and sand by firing is used, it also being possible to work with an excess of plaster of paris. Embodiment of the method according to claims 1 to 3, characterized in that dilute waterglass solution is added to the mixtures. 5. Embodiment of the method according to claim i to .t, characterized in that coal ash and hydrochloric acid salts, such as 1lagnesium chloride, are used as further additives. 6. Embodiment of the method according to claim i to 5, characterized in that silicic acid-containing grasses, such as sedge, reed and the like, are added to the gypsum-sand mixture as deposits. 7. Embodiment of the method according to claim i to 6, characterized in that substances are used as inserts: i, which are soaked with water glass.
DEB108401D 1923-02-14 1923-02-14 Process for the production of stones, slabs and other bodies from a mixture of plaster of paris and sand Expired DE385454C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB108401D DE385454C (en) 1923-02-14 1923-02-14 Process for the production of stones, slabs and other bodies from a mixture of plaster of paris and sand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB108401D DE385454C (en) 1923-02-14 1923-02-14 Process for the production of stones, slabs and other bodies from a mixture of plaster of paris and sand

Publications (1)

Publication Number Publication Date
DE385454C true DE385454C (en) 1923-11-23

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Family Applications (1)

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DEB108401D Expired DE385454C (en) 1923-02-14 1923-02-14 Process for the production of stones, slabs and other bodies from a mixture of plaster of paris and sand

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Country Link
DE (1) DE385454C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1001174B (en) * 1952-01-21 1957-01-17 Badische Bau Und Kunststoff G Process for the hardening of components
EP0065065A2 (en) * 1981-05-13 1982-11-24 BABCOCK-BSH AKTIENGESELLSCHAFT vormals Büttner-Schilde-Haas AG Water proof building material based on gypsum, containing calcium silicate, and method for its preparation
WO1988003916A1 (en) * 1986-11-27 1988-06-02 Brouard Jean Charles Louis Eug Method for fabricating a construction element with a hydraulic binder, element thus obtained and building method using such elements

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1001174B (en) * 1952-01-21 1957-01-17 Badische Bau Und Kunststoff G Process for the hardening of components
EP0065065A2 (en) * 1981-05-13 1982-11-24 BABCOCK-BSH AKTIENGESELLSCHAFT vormals Büttner-Schilde-Haas AG Water proof building material based on gypsum, containing calcium silicate, and method for its preparation
EP0065065A3 (en) * 1981-05-13 1983-01-26 Babcock-Bsh Aktiengesellschaft Vormals Buttner-Schilde-Haas Ag Water proof building material based on gypsum, containing calcium silicate, and method for its preparation
WO1988003916A1 (en) * 1986-11-27 1988-06-02 Brouard Jean Charles Louis Eug Method for fabricating a construction element with a hydraulic binder, element thus obtained and building method using such elements
FR2607426A1 (en) * 1986-11-27 1988-06-03 Brouard Jean Charles Louis Eug METHOD FOR MANUFACTURING A PLASTER-BASED CONSTRUCTION ELEMENT, AND ELEMENT THUS OBTAINED AND CONSTRUCTION METHOD THEREFROM
US5000793A (en) * 1986-11-27 1991-03-19 Brouard Jean Charles Louis Eug Method of manufacturing a building element based on a hydraulic binder, an element thus obtained, and a building method using such elements

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