DE719645C - Process for the production of magnesia cement or concrete - Google Patents

Process for the production of magnesia cement or concrete

Info

Publication number
DE719645C
DE719645C DEK149433D DEK0149433D DE719645C DE 719645 C DE719645 C DE 719645C DE K149433 D DEK149433 D DE K149433D DE K0149433 D DEK0149433 D DE K0149433D DE 719645 C DE719645 C DE 719645C
Authority
DE
Germany
Prior art keywords
concrete
production
magnesium
magnesia cement
magnesium oxide
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
DEK149433D
Other languages
German (de)
Inventor
Dipl-Ing Rudolf Zollinger
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.)
KARL KAMMUELLER DR ING
Original Assignee
KARL KAMMUELLER DR 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 KARL KAMMUELLER DR ING filed Critical KARL KAMMUELLER DR ING
Priority to DEK149433D priority Critical patent/DE719645C/en
Application granted granted Critical
Publication of DE719645C publication Critical patent/DE719645C/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
    • 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
    • C04B28/30—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 magnesium cements or similar cements
    • C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

Verfahren zur Herstellung von Magnesiazement bzw. beton Die Erfindung betrifft ein Verfahren zur Herstellung von Magnesiazement bzw. -beton und bezweckt die Erhöhung der Wassierbeständigkeit. Erfindungsgemäß werden die hydraulischen Mischungsbestandteile, nämlich Magnesiumoxyd, Magnesiumchloirid und Wasser, mit solchen mineralischen Zuschlagstoffen betontechnisch verarbeitet, welche mindestens eine derartige Menge an Hydrauleträgern enthalten, als es der angewendeten Menge Magnesiumoxyd entspricht, indem man das Mischungsverhältnis zwischen Mg 0, Mg C12 und H20 innerhalb der Grenzen von 4o bis 52% Mg O, i o bis i 8 % Mg C12 und 3 2 bis 460;o H20 wählt. Besonders vorteilhaft erwiesen sich als Hydrauleträger künstliche oder natürliche Gläser und Schlacken, insbesondere mit übersättigtem und leicht abspaltbarem saurem Anteil. Durch die Erfindung ist es möglich, Magnesiazement bzw. -beton herzustellen, welcher in bezug auf Wasserbeständigkeit dem Portlandzement bzw. -beton ebenbürtig ist und bezüglich Festigkeit und Raumbeständigkeit diesen sogar übertrifft.Process for the production of magnesia cement or concrete The invention relates to a process for the production of magnesia cement or concrete and aims the increase in water resistance. According to the hydraulic Mixing ingredients, namely magnesium oxide, magnesium chloride and water, with such mineral aggregates processed concrete technically, which at least contain such an amount of hydraulic carriers as the amount used Magnesium oxide is equivalent by changing the mixing ratio between Mg 0, Mg C12 and H20 within the limits of 4o to 52% Mg O, i o to i 8% Mg C12 and 3 2 to 460; o H20 selects. Artificial hydraulic carriers have proven to be particularly advantageous or natural glasses and slags, especially with oversaturated and light cleavable acidic fraction. The invention makes it possible to use magnesia cement or - to produce concrete, which in terms of water resistance to portland cement or concrete is on a par with them in terms of strength and spatial stability even surpasses.

Die beim Abbinden stattfindenden chemischen Vorgänge sind vermutlich die folgenden.The chemical processes that take place during setting are presumably the following.

Magnesiumoxyd und Magnesiumchlorid bilden zunächst Magnesiumoxychlorid, welches sich durch Wasserüberschuß zum Magnesiumoxyhydrat umwandelt unter Abspaltung der Salzsäure, die ihrerseits wieder mit neuem Magnesiumoxyd das Magnesiumchlorid bildet, welches seinerseits erneut wie oben reagiert. Es vollzieht sich mithin ein Kreislauf, bis alles Magnesiumoxyd in Magnesiumoxyhydrat umgesetzt ist. Letzteres reagiert mit weiterem überschußawasser und aktiven Hydrauleträgern leicht unter Bildung von Magnesiumhydrosilicaten, -aluminaten oder -ferriten.Magnesium oxide and magnesium chloride initially form magnesium oxychloride, which converts to magnesium oxyhydrate with splitting off due to excess water the hydrochloric acid, which in turn, with new magnesium oxide, the magnesium chloride forms, which in turn reacts again as above. It takes place thus a cycle is established until all of the magnesium oxide is converted into magnesium oxyhydrate is. The latter reacts with further excess water and active hydraulic carriers easily with the formation of magnesium hydrosilicates, aluminates or ferrites.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Magnesiazement bzw. -beton, dadurch gekennzeichnet, daG Magnesiumoxyd, Magnesium-Chlorid und Wasser mit solchen mineralischen Zuschlagstoffen betontechnisch verarbeitet werden, die mindestens eine derartige Menge an Hydrauleträgern enthalten, als es der angewandten Menge Magnesiumoxyd entspricht, indem ein Mischungsverhältnis zwischen Magnesiumoxyd, Magnesiumchlorid und Wasser innerhalb der Grenzen von q.o bis 52010 Mg O, r o bis i 3 % MgCl. und 32 bis 46% H20 gewählt wird.PATENT CLAIM: A process for the production of magnesia cement or concrete, characterized in that magnesium oxide, magnesium chloride and water are processed concrete with such mineral additives that contain at least such an amount of hydraulic carriers as corresponds to the amount of magnesium oxide used by a Mixing ratio between magnesium oxide, magnesium chloride and water within the limits of qo to 52010 Mg O, ro to i 3% MgCl. and 32 to 46% H2O is chosen.
DEK149433D 1938-02-04 1938-02-04 Process for the production of magnesia cement or concrete Expired DE719645C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK149433D DE719645C (en) 1938-02-04 1938-02-04 Process for the production of magnesia cement or concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK149433D DE719645C (en) 1938-02-04 1938-02-04 Process for the production of magnesia cement or concrete

Publications (1)

Publication Number Publication Date
DE719645C true DE719645C (en) 1942-04-14

Family

ID=7251910

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK149433D Expired DE719645C (en) 1938-02-04 1938-02-04 Process for the production of magnesia cement or concrete

Country Status (1)

Country Link
DE (1) DE719645C (en)

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