DE534536C - Process for the production of aerated concrete - Google Patents
Process for the production of aerated concreteInfo
- Publication number
- DE534536C DE534536C DEA58169D DEA0058169D DE534536C DE 534536 C DE534536 C DE 534536C DE A58169 D DEA58169 D DE A58169D DE A0058169 D DEA0058169 D DE A0058169D DE 534536 C DE534536 C DE 534536C
- Authority
- DE
- Germany
- Prior art keywords
- aerated concrete
- cement
- production
- free lime
- alkali
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
- C04B18/162—Cement kiln dust; Lime kiln dust
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
Verfahren zur Herstellung von Gasbeton Bei dem Gasbeton hat man die Erfahrung gemacht, daß die Aufblähung je nach Anwendung verschiedener Zementarten verschieden verläuft und auch mehr oder weniger schnell beginnt. Besonders ungünstig wirken solche Zemente, die an freiem Kalk und Alkalien arm sind.Process for the production of aerated concrete With aerated concrete one has the Experience that the bloating depends on the application of different types of cement runs differently and also begins more or less quickly. Particularly unfavorable Cements that are poor in free lime and alkalis are effective.
Es ist daher schon vorgeschlagen worden,. den Gehalt der Zemente an freiem Kalk und Alkalien zu dem Zwecke erhöhter Aufblähung zu vermehren.It has therefore already been suggested. the content of the cement to increase free lime and alkalis for the purpose of increased puffiness.
Solche Zuschläge verteuern indessen den Zement und führen auch nur teilweise zu dem angestrebten Ziel, indem ihre gleichförmige Verteilung in der Zementmasse nur schwierig durchführbar ist, da es sich für gewöhnlich um verhältnismäßig geringe Mengen handelt.Such surcharges, however, make the cement more expensive and only lead partly to the desired goal by making their uniform distribution in the cement mass Difficult to carry out because they are usually relatively small Quantities.
Diese Nachteile beseitigt die Erfindung; und zwar dadurch, daß als die Aufblähung befördernder Zuschlag der Flugstaub der. Zementöfen verwendet wird.The invention eliminates these disadvantages; namely by the fact that as the inflation-promoting surcharge of the fly ash. Cement kilns being used.
Dieser Flugstaub besteht im wesentlichen aus einer freien Kalk enthaltenden Zementrohmasse und gebranntem Zement in feinster Verteilung mit einem Gehalt von Alkalien, der gewöhnlich zwischen 3 und 5°/° wechselt: Das Alkali ist durch Vergasung eines Teiles des Alkaligehaltes der Rohzementmasse im Brennofen entstanden und befindet sich daher in dem Flugstaub in feinster Verteilung. Es bietet daher keine Schwierigkeit, diesen Flugstaub mit dem für die Herstellung von Gasbeton bestimmten Zement gleichförmig zu vermischen und dadurch dem Zement eine entsprechende Menge an freiem Kalk und Alkali zuzuführen.This fly ash consists essentially of a free lime containing Cement raw mass and burnt cement in finest distribution with a content of Alkali, which usually varies between 3 and 5 ° / °: The alkali is by gasification part of the alkali content of the raw cement mass was created and is in the kiln therefore in the fly dust in the finest distribution. There is therefore no difficulty in this fly dust is uniform with the cement intended for the manufacture of aerated concrete to mix and thereby the cement a corresponding amount of free lime and To supply alkali.
Es hat sich z. B. gezeigt, daß der Gasbeton bei der Benutzung eines alkaliarmen Zements und ohne Zusatzmittel sich sehr wenig, nämlich nur um 75°1° in roh Minuten, aufblähte, und es dauerte ungefähr eine halbe Stunde, bevor die Aufblähung begann.It has z. B. shown that the aerated concrete when using a Cement low in alkali and without additives is very little, namely only by 75 ° 1 ° in raw minutes, puffed up, and it took about half an hour before that Bloat began.
Bei einem Zusatz von 5°4 eines Abgasstaubes gemäß der Erfindung blähte sich der gleiche Gasbeton innerhalb 30 Minuten und bei io°/° Zusatz in 2o Minuten fertig auf. Der Zusatz hat auch keine sonstigen schädlichen Begleiterscheinungen; allerdings empfiehlt es sich, nicht mehr als 501, zu nehmen.With an addition of 5 ° 4 of an exhaust gas dust according to the invention, the same aerated concrete inflated within 30 minutes and with an addition of 10 ° / ° in 20 minutes. The addition also has no other harmful side effects; however, it is advisable not to take more than 501.
Der Abgasstaub kann entweder mit dem Zement zusammen gemahlen oder bei dem Gießen des Gasbetons zugesetzt werden.The exhaust dust can either be ground together with the cement or be added when pouring the aerated concrete.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA58169D DE534536C (en) | 1929-06-19 | 1929-06-19 | Process for the production of aerated concrete |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA58169D DE534536C (en) | 1929-06-19 | 1929-06-19 | Process for the production of aerated concrete |
Publications (1)
Publication Number | Publication Date |
---|---|
DE534536C true DE534536C (en) | 1931-09-28 |
Family
ID=6941493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA58169D Expired DE534536C (en) | 1929-06-19 | 1929-06-19 | Process for the production of aerated concrete |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE534536C (en) |
-
1929
- 1929-06-19 DE DEA58169D patent/DE534536C/en not_active Expired
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