DE747952C - Process for the production of magnesia clay - Google Patents

Process for the production of magnesia clay

Info

Publication number
DE747952C
DE747952C DEK149849D DEK0149849D DE747952C DE 747952 C DE747952 C DE 747952C DE K149849 D DEK149849 D DE K149849D DE K0149849 D DEK0149849 D DE K0149849D DE 747952 C DE747952 C DE 747952C
Authority
DE
Germany
Prior art keywords
production
water
magnesia clay
magnesia
clay
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
DEK149849D
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 DEK149849D priority Critical patent/DE747952C/en
Application granted granted Critical
Publication of DE747952C publication Critical patent/DE747952C/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

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)
  • Compositions Of Oxide Ceramics (AREA)

Description

Verfahren zur Herstellung von Magnesiabeton Zusatz zum Patent ;og 89o . Im Hauptpatent 709 890 ist ein Verfahren zur Herstellung von Magnesiabeton beschrieben, welches durch die Wahl bestimmter Mengenverhältnisse der dreiBind:emittelkomponenten, nämlich Magnesiumoxyd, Magnesiumchlorid und Wasser, gekennzeichnet ist. Innerhalb des von jenen Mengenverhältnissen umschriebenen Feldes des genanntienDreistoffsystems erreicht man Höchstwerte an Druckfestigkeit bei hoher Erhärtungsgeschwindigkeit und für viele Zwecke hinreichender Raumbeständigkeit. Es wurde nun gefunden, daß durch eine E;rhöliung der relativen Wassermenge bei den höheren Magnesiumoxydgehalten eine überraschend hohe Raumbeständigkeit erreicht wird, welche die gleichzeitige Festigkeitseinbuße derart überwiegt, daß für manche Zwecke die wasserreichen Mischungen erhebliche Vorteile bieten. Der Wasserbe,lnalt muß offenbar so groß sein, daß die restlose Hydratation des vorhandenen Magnesiumoxyds schon während des Abbindens mit Sicherheit erreicht und eine nachträgliche Hy# dratation im abgebundenen Körper, .etwa unter Wasseraufnahme aus der Luft, mit der "damit verknüpften. Quellung vermieden wird.Process for the production of magnesia clay Addition to the patent; og 89o. The main patent 709 890 describes a process for the production of magnesia clay, which is characterized by the choice of certain proportions of the three binding agent components, namely magnesium oxide, magnesium chloride and water. Within the area of the three-substance system described by those quantitative ratios, maximum values of compressive strength are achieved with a high hardening rate and, for many purposes, sufficient space stability. It has now been found that by increasing the relative amount of water at the higher magnesium oxide contents, a surprisingly high volume stability is achieved, which outweighs the simultaneous loss of strength to such an extent that the water-rich mixtures offer considerable advantages for some purposes. The water content must obviously be so great that the complete hydration of the magnesium oxide present is already achieved during the setting process and subsequent hydration in the set body, for example when water is absorbed from the air, with the associated swelling is avoided will.

Diesen Bedingungen wird erfindungsgemäß dadurch entsprochen, daß dem Beton t bis q.% mehr Wasser zugesetzt wird als gemäß der Regel nach dem Hauptpatent. Ausführungsbeispiel Bei einem Bindemittelverhältnis von Mg O: Mg C12-: H2 O -von- 5 : 1 : 15 Molen betrug die Raumänderung nach 18o Tagen 1,1 mm je. Meter. Erhöhte man den Wassergehalt entsprechend einem Molverhältnis von 5 : i : 2o, dann betrug die Raumänderung nach der gleichen Zeit nur noch o,25 mm je Meter. Bei` einem Malverhältnis von 7,5:1 :12 b44 die Raumänderung in der angegebenen Zeit etwa 2,z mm je Meter und bei einem Molverhältnis von 7,5 : 1 :2o dagegen nur noch o, i mm je Meter.According to the invention, these conditions are met in that the Concrete t to q.% More water is added than according to the rule according to the main patent. Embodiment With a binder ratio of Mg O: Mg C12-: H2 O -of- 5: 1: 15 moles the change in space after 180 days 1.1 mm each. Meter. The water content was increased accordingly a molar ratio of 5: 1: 2o, then the change in space was the same Time only 0.25 mm per meter. With a painting ratio of 7.5: 1: 12 b44 the change in space in the specified time about 2.2 mm per meter and at a molar ratio of 7.5 : 1: 2o on the other hand only 0.1 mm per meter.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Magnesiabeton nach Patent 709 890, dadurch gekennzeichnet, daß dem Beton i bis q.% mehr,Wasser zugesetzt wird als gemäß der Regel nach dem Hauptpatent. Zar Abgrenzung des Anmeldungsgegen@ Standes vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: schweizerische Patentschrift Nr. 110439; Tenindustrie-Zeitung (1927), S.395%98 PATENT CLAIM: Process for the production of magnesia clay according to patent 709 890, characterized in that i to q.% More water is added to the concrete than according to the rule according to the main patent. In order to distinguish the subject of the application from the state of the art, the following publications were taken into account in the granting procedure: Swiss patent specification no. 110439; Tenindustrie-Zeitung (1927), 395% 98
DEK149849D 1938-03-09 1938-03-09 Process for the production of magnesia clay Expired DE747952C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK149849D DE747952C (en) 1938-03-09 1938-03-09 Process for the production of magnesia clay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK149849D DE747952C (en) 1938-03-09 1938-03-09 Process for the production of magnesia clay

Publications (1)

Publication Number Publication Date
DE747952C true DE747952C (en) 1944-10-23

Family

ID=7251999

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK149849D Expired DE747952C (en) 1938-03-09 1938-03-09 Process for the production of magnesia clay

Country Status (1)

Country Link
DE (1) DE747952C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937155C (en) * 1941-10-19 1955-12-29 Magnesit Ag Deutsche Processing of so-called Sorel cement bases into camouflage paints

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH110439A (en) * 1924-03-24 1925-06-01 Martinoff Woldemar Process for the production of plastics such as synthetic wood, artificial stone, etc.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH110439A (en) * 1924-03-24 1925-06-01 Martinoff Woldemar Process for the production of plastics such as synthetic wood, artificial stone, etc.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937155C (en) * 1941-10-19 1955-12-29 Magnesit Ag Deutsche Processing of so-called Sorel cement bases into camouflage paints

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