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DE273877C - - Google Patents

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Publication number
DE273877C
DE273877C DENDAT273877D DE273877DA DE273877C DE 273877 C DE273877 C DE 273877C DE NDAT273877 D DENDAT273877 D DE NDAT273877D DE 273877D A DE273877D A DE 273877DA DE 273877 C DE273877 C DE 273877C
Authority
DE
Germany
Prior art keywords
mortar
barium
sand
lime
fluoride
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.)
Active
Application number
DENDAT273877D
Other languages
German (de)
Publication of DE273877C publication Critical patent/DE273877C/de
Active legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08Acids or salts thereof
    • C04B22/12Acids or salts thereof containing halogen in the anion
    • C04B22/126Fluorine compounds, e.g. silico-fluorine compounds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2/00Lime, magnesia or dolomite
    • C04B2/02Lime
    • C04B2/04Slaking
    • C04B2/06Slaking with addition of substances, e.g. hydrophobic agents ; Slaking in the presence of other compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Um die Entstehung von Ausschlägen bei Mörteln zu verhindern, benutzt der Erfinder Bariumfluorid in der Weise, daß der Kalk mit Sand und Bariumfluorid zusammen in der Wärme gelöscht wird. Dadurch wird nicht nur erreicht, daß die in den Bestandteilen des Mör- \ tels (Kalk, Sand, Gesteinsbrocken, Wasser) vor- ; handenen sowie die aus dem Mauerwerk in den Fugenmörtel oder den Putz dringenden ίο löslichen schwefelsäuren Salze unschädlich gemacht werden, sondern es wird auch der Sand geätzt und Kieselsäure aufgeschlossen.In order to prevent the development of rashes in mortars, the inventor uses barium fluoride in such a way that the lime is slaked together with sand and barium fluoride in the heat. This not only ensures that the in the components of the mortar \ tels (lime, sand, rocks, water) forward; Existing as well as the ίο soluble sulfuric acid salts that penetrate the grout or plaster from the masonry are rendered harmless, but the sand is also etched and silica is digested.

Um in hydraulischen Mörtelbildnern die Sulfate zu binden, hat man zwar schon vorgcschlagen, Bariumsalz, jedoch nicht Fluorid, einfach zuzumischen. Ein günstiger Einfluß der Barium verbindung im Sinne einer besseren Aufschließung, wie er bei vorliegender Zusammenlöschung in der Wärme eintritt, war dabei ausgeschlossen.In order to bind the sulfates in hydraulic mortar formers, it has already been suggested that Simply add barium salt, but not fluoride. A favorable influence the barium compound in the sense of a better unlocking, as it is with the present extinction occurs in the heat, was excluded.

Einzelne Fluorverbindungen sind auch mit anderem Zweck unter anderen Verhältnissen in Mörtelbildnern und Kunststeinmassen ein-, geführt worden. Lösliche Fluoride sollten die 25] Abbindezeit regeln, Kieselfluorwasserstoffsäure eine Kittung erzeugen, andere lösliche Fluoride eine Vorätzung eines Teiles der Kunststeinmasse bewirken. Den Wert des Bariumfluorides hat man aber bisher noch nicht erkannt.
Die Bereitung des Mörtels nach der Erfindung geschieht durch Löschen des Kalkes in Gegenwart des Sandes und des Bariumfluorides. Diesen in der Wärme, in einer Dampfatmosphäre, verlaufenden Prozeß macht also das Bariumfluorid mit durch. Es werden in einer der üblichen, zum Zusammenhalten der Löschenergie ganz oder teilweise geschlossenen Löschvorrichtungen für Mörtel Sand, Kalk, Wasser und Bariumfluorid zusammen eingegeben.
Individual fluorine compounds have also been introduced into mortar formers and artificial stone masses for a different purpose under different conditions. Soluble fluorides should regulate the setting time, hydrofluoric acid should produce a cement, other soluble fluorides should pre-etch part of the artificial stone mass. The value of barium fluoride has not yet been recognized.
The mortar according to the invention is prepared by slaking the lime in the presence of sand and barium fluoride. The barium fluoride also goes through this process, which takes place in the warmth, in a steam atmosphere. Sand, lime, water and barium fluoride are put together in one of the usual extinguishing devices for mortar that are completely or partially closed to hold the extinguishing energy together.

In der feuchten Wärme zersetzt sich das Fluorid teilweise und spaltet Flußsäure ab, durch die der Sand geätzt und Kieselsäure aufgeschlossen wird. Dadurch gewinnt der Mörtel hydraulische Eigenschaften. Gleichzeitig wird die vorhandene Schwefelsäure in Bariumsulfat verwandelt. Der Kalk macht das Barium leicht reaktionsfähig, und infolgedessen liegt dieses im fertigen Mörtel in einer Form vor, daß es sich unmittelbar mit herantretenden Sulfaten umsetzt.In the moist heat, the fluoride partially decomposes and splits off hydrofluoric acid, through which the sand is etched and silica is broken down. This wins the Mortar hydraulic properties. At the same time, the existing sulfuric acid is in Transformed barium sulfate. The lime makes the barium easily reactive, and consequently this is in the finished mortar in a form that it is directly with the approaching Converts sulfates.

Es ergibt sich also ein ausschlagfreier Mörtel mit gesteigerter Abbindungs- und Erhärtungsfähigkeit. The result is a rash-free mortar with increased setting and hardening properties.

Claims (1)

Patent-Anspruch: 5S Patent claim: 5S Verfahren der Herstellung von ausschlagfreiem, hydraulischem Mörtel unter Verwendung von Bariumsalz, dadurch gekennzeichnet, daß der Kalk mit Sand und Bariumfluorid zusammen in der Wärme gelöscht wird.Method of making crack-free hydraulic mortar using of barium salt, characterized in that the lime is extinguished together with sand and barium fluoride in the heat will.
DENDAT273877D Active DE273877C (en)

Publications (1)

Publication Number Publication Date
DE273877C true DE273877C (en)

Family

ID=530294

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT273877D Active DE273877C (en)

Country Status (1)

Country Link
DE (1) DE273877C (en)

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