DE586795C - Process for the production of lightweight stones, wall plaster and insulating materials against noise and heat - Google Patents
Process for the production of lightweight stones, wall plaster and insulating materials against noise and heatInfo
- Publication number
- DE586795C DE586795C DEN33834D DEN0033834D DE586795C DE 586795 C DE586795 C DE 586795C DE N33834 D DEN33834 D DE N33834D DE N0033834 D DEN0033834 D DE N0033834D DE 586795 C DE586795 C DE 586795C
- Authority
- DE
- Germany
- Prior art keywords
- production
- heat
- insulating materials
- wall plaster
- materials against
- 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
- 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
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 Leichtsteinen, Wandputz und Isoliermaterialien gegen Schall und Wärme Gegenstand des vorliegenden Verfahrens ist die Herstellung von porösen Baustoffen, wie Leichtsteinen, isolierendem Wandputz und sonstigen Isolierm_ aterialien, gegen Wärme und Schall. Das Verfahren beruht auf der Beöbachtung, daß in einer Aufschlämmung mineralischer Stoffe, wie Zement, Kalk, Ton o. dgl., Sulfat- oder Sulfitablaugen, die bei der Zellstoffherstellung anfallen, sehr - stark gasentwickelnd wirken, wenn die ersterexi mit Säuren, die letzteren mit Alkalicarbonat. gemischt werden. Durch Zusatz verhältnismäßig geringer Mengen ist -es möglich, eine sehr fein verteilte Gasentwicklung zu erzielen, so daß, z. B. die Steine trotz niedrigen Gewichts eine große Festigkeit erhalten: Hinzu kommt, daß Sulfatablaugen -und Sulfitablaugen erhärtend auf die Rohstoffe, wie Gips, Kalk oder Ton, wirken. Auch sind bei den Ablaugen der Zellstoffindustrie die in ihnen stark konzentrierten organischen Bestandteile, wie ' Lignine, Pentosane usw., nach kräftigem Durchrühren so fein verteilt, daß sie die Steine gleichmäßig durchdringen und durch den beim Trocknen eintretenden Schwund das Material gleichmäßig mit mikroskopisch feinen Lufträumen durchzogen ist. Außerdem wirken diese Laugen stark leimend, so daß auf die sonst verwendeten tierischen Leime verzichtet werden kann. Die Gasentwickluug geschieht allmählich, zum Teil erst unter dem Einfluß der Wärme, so daß beim Trocknen immer noch Gas an Stelle des verdampfenden Wassers tritt und so Schwund vermieden wird. Das Verfahren stellt somit eine Vereinfachung und Verbesserung dar, da mit dem Zusatz gleichzeitig ein Treiben, Härten und Leimen der Rohstoffe erzielt wird. Beispiel Um Isoliermaterial oder Wandputz zu erzeugen, stellt man :eine Mischung -von i oo 1 Wässer her, in der 3 bis 5 'kg Sulfatablauge der Zellstoffindustrie fein verteilt sind, und rührt in diese i oo kg Gips nä.ch und nach ein. Alsdann gibt man verdünnte Sulfitablaüge oder Säure so lange zu, bis -die Mischung neutral reagiert, wobei eine starke Gasentwicklung eintritt. Man kann es auch umgekehrt machen und zuerst Sulfitablauge und nachher so lange Sulfafablauge oder Alkalicarbonat zugeben, bis die Mischung neutral wird. Aus dieser Masse kann man alsdann entweder Schalen oder Platten gießen oder nach einem gewissen Erstarren die nun plastische Masse aufstreichen oder putzen. Nach dem Abbinden entsteht ein leichter, hochisolierender Körper.Process for the production of lightweight bricks, wall plaster and insulating materials against noise and heat The subject of the present process is the production of porous building materials such as lightweight bricks, insulating wall plaster and other insulating materials against heat and noise. The method is based on the observation that in a slurry of mineral substances such as cement, lime, clay or the like, sulphate or sulphite waste liquors, which are produced during pulp production, have a very strong gas-generating effect when the former is exposed to acids, the latter with alkali carbonate. be mixed. By adding relatively small amounts -it is possible to achieve a very finely divided gas evolution, so that, for. B. the stones get a great strength despite their low weight: In addition, sulphate waste liquors and sulphite waste liquors have a hardening effect on raw materials such as gypsum, lime or clay. In the waste liquors of the pulp industry, the highly concentrated organic constituents such as lignins, pentosans, etc., are so finely distributed after vigorous stirring that they evenly penetrate the stones and, due to the shrinkage that occurs during drying, the material evenly with microscopically fine air spaces is streaked. In addition, these alkalis have a strong gluing effect, so that the otherwise used animal glues can be dispensed with. The gas evolution takes place gradually, sometimes only under the influence of heat, so that gas still takes the place of the evaporating water during drying, thus avoiding loss. The process thus represents a simplification and an improvement, since the addition of the raw materials simultaneously results in the driving, hardening and gluing of the raw materials. Example In order to produce insulating material or wall plaster, one prepares: a mixture of 100 l of water in which 3 to 5 kg of sulphate waste liquor from the pulp industry is finely distributed, and stirs 100 kg of gypsum into this one and the other. Then dilute sulfite waste or acid is added until the mixture reacts neutrally, with vigorous evolution of gas. You can also do it the other way round and add sulphite waste liquor first and then add sulphate waste liquor or alkali carbonate until the mixture becomes neutral. From this mass you can then either pour bowls or plates or, after a certain solidification, brush or clean the now plastic mass. After setting, a light, highly insulating body is created.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN33834D DE586795C (en) | 1932-06-18 | 1932-06-18 | Process for the production of lightweight stones, wall plaster and insulating materials against noise and heat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN33834D DE586795C (en) | 1932-06-18 | 1932-06-18 | Process for the production of lightweight stones, wall plaster and insulating materials against noise and heat |
Publications (1)
Publication Number | Publication Date |
---|---|
DE586795C true DE586795C (en) | 1933-10-26 |
Family
ID=7346625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN33834D Expired DE586795C (en) | 1932-06-18 | 1932-06-18 | Process for the production of lightweight stones, wall plaster and insulating materials against noise and heat |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE586795C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2662025A (en) * | 1950-10-31 | 1953-12-08 | Leslie L Keene | Linoleum paste and method for making same |
-
1932
- 1932-06-18 DE DEN33834D patent/DE586795C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2662025A (en) * | 1950-10-31 | 1953-12-08 | Leslie L Keene | Linoleum paste and method for making same |
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