DE726702C - Mortar for magnesia stones or stones containing magnesia - Google Patents
Mortar for magnesia stones or stones containing magnesiaInfo
- Publication number
- DE726702C DE726702C DEA92474D DEA0092474D DE726702C DE 726702 C DE726702 C DE 726702C DE A92474 D DEA92474 D DE A92474D DE A0092474 D DEA0092474 D DE A0092474D DE 726702 C DE726702 C DE 726702C
- Authority
- DE
- Germany
- Prior art keywords
- magnesia
- mortar
- stones
- calcium ferrite
- bricks
- 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
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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/42—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on chromites
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/12—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on chromium oxide
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
Description
Mörtel für Magnesiasteine oder magnesiahaltige Steine Es wurde vorgeschlagen, bereits bis zur Sinterung vorgebrannter Magnesia vor der Verformung zu Steinen Calciumferrit oder ein Gemisch dieser Verbindung mit Eisenoxyd zuzuschlagen, wobei sich die Menge der eisenhaltigen Zuschläge nach dem Verwendungszweck der Erzeugnisse richtet.Mortar for magnesia bricks or bricks containing magnesia It has been suggested that Calcium ferrite already up to the sintering of pre-fired magnesia before being deformed into stones or to add a mixture of this compound with iron oxide, increasing the amount the ferrous surcharges are based on the intended use of the products.
Die Erfindung betrifft nun einen Mörtel für Magnesiasteine ' oder magnesiahaltige Steine, der aus Calciumferrit oder Magnesiummassen besteht, die über 25 Gewichtsprozent Calciumferrit enthalten.The invention now relates to a mortar for magnesia bricks or bricks containing magnesia, which consists of calcium ferrite or magnesium masses which contain more than 25 percent by weight of calcium ferrite.
Es wurde gefunden, daß man Calciumferrit oder magnesiahaltige Stoffe mit hohem Gehalt an Calciumferrit, vorzugsweise über 50%, mit Vorteil als Mörtel für Magnesiasteine und magnesiahaltige Steine verwenden kann. Da die Calciumferrite schon bei etwa iooo° zusammensintern und je nach der Einstellung des Mischungsverhältnisses von Kalk und Eisenoxyd und je nach der Menge der vorhandenen Magnesia bei Temperaturen zwischen iaoo bis 1q.00° ganz oder teilweise schmelzen, gelingt es, ein festes Verhaften des Mörtels mit den Steinen in tiefer Schicht zu erzielen. Bei der Gebrauchstemperatur verschweißt dann der Cälciumferrit bzw. die calciumferrithaltige Mörtelmasse die Magnesiasteine vollkommen, so daß sie eine homogene oder fast homogene Masse bilden. Der vorgeschlagene Mörtel ist in seinem Verhalten den bekannten Mörtelmassen aus Sintermagnesia und fein verteiltem Eisen wesentlich überlegen.It has been found that calcium ferrite or magnesia-containing substances can be used With a high content of calcium ferrite, preferably over 50%, with advantage as a mortar can be used for magnesia stones and stones containing magnesia. Because the calcium ferrites sinter together at around iooo ° and depending on the setting of the mixing ratio of lime and iron oxide and, depending on the amount of magnesia present, at temperatures melt completely or partially between iaoo and 1q.00 °, a firm arrest succeeds of the mortar with the stones in a deep layer. At the use temperature The calcium ferrite or the calcium ferritic mortar mass then welds the Magnesia bricks perfectly so that they form a homogeneous or almost homogeneous mass. The behavior of the proposed mortar is made from the known mortar masses Significantly superior to sintered magnesia and finely divided iron.
Je nach der Stärke der Fugen und je nach der Ausdehnung des gesamten Mauerwerks wird -man zweckmäßig die Zusammensetzung des calcitunferrithaltigen Mörtels einstellen: Bei geschliffenen Steinen wird es sich empfehlen, reinen Calciumferrit zu verwenden, da dieser bei den Gebrauchstemperaturen schmilzt, sich in die Steine einsaugt und sie vollkommen verschweißt; bei Bauwerken mit breiter Mörtelfuge wird man in zunehmendem Maße zweckmäßig Magnesia zusetzen, bei geringen Mengen vorteilhafterweise kaustische Magnesia, bei höherem Magnesiazusatz Sintermagnesia oder Gemische von Sintermagnesia und kaustischer Magnesia. Die gleichzeitige Anwendung von Calciumferrit und kaustischer Magnesia im Mörtel ergibt ein Erhärten bei Raumtemperatur und ein vollkommenes Verschweißen bei Betriebstemperatur.Depending on the strength of the joints and depending on the extent of the whole Masonry is expediently the composition of the mortar containing calcite unferrite set: For polished stones, it is recommended to use pure calcium ferrite to use, because this melts at the use temperatures, into the stones sucked in and completely welded; in structures with a wide mortar joint it is expedient to add magnesia to an increasing extent, advantageously in the case of small amounts caustic magnesia, with a higher addition of magnesia sintered magnesia or mixtures from Sintered magnesia and caustic magnesia. Simultaneous use of calcium ferrite and caustic magnesia in the mortar gives room temperature hardening and a perfect welding at operating temperature.
In manchen Fällen wird man den calciumferrithaltigen Magnesiamörtel zur Ausbildung einer Dehnungsfuge heranziehen, da er bei den Betriebstemperaturen genügend plastisch ist, um Spannungen nachgeben zu können, ohne daß im Mauerwerk Risse auftreten. Andererseits ist der vorgeschlagene Mörtel in seiner chemischen Natur den verwendeten übrigen Materialien so ähnlich, daß keine Verschlechterung in bezug auf die Schlackenbeständigkeit entsteht.In some cases you will use the calcium ferrite containing magnesia mortar use to form an expansion joint, as it is at the operating temperatures is sufficiently plastic to be able to give way to tension without being in the masonry Cracks appear. On the other hand, the proposed mortar is in its chemical Nature so similar to the other materials used that no deterioration in terms of slag resistance.
Es bedeutet keine Änderung der Erfindung, wenn bei einem Mörtel der vorgeschlagenen Art weitere, an sich bekannte Zusätze, wie Chromerz, Aluminiumoxyd, Phosphat, Borat usw., gemacht werden.There is no change in the invention if, in the case of a mortar, the proposed type further, per se known additives, such as chrome ore, aluminum oxide, Phosphate, borate, etc., can be made.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA92474D DE726702C (en) | 1940-12-10 | 1940-12-10 | Mortar for magnesia stones or stones containing magnesia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA92474D DE726702C (en) | 1940-12-10 | 1940-12-10 | Mortar for magnesia stones or stones containing magnesia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE726702C true DE726702C (en) | 1942-10-19 |
Family
ID=6951129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA92474D Expired DE726702C (en) | 1940-12-10 | 1940-12-10 | Mortar for magnesia stones or stones containing magnesia |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE726702C (en) |
-
1940
- 1940-12-10 DE DEA92474D patent/DE726702C/en not_active Expired
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