DE327004C - Process for the production of rash-free cement fiber panels - Google Patents
Process for the production of rash-free cement fiber panelsInfo
- Publication number
- DE327004C DE327004C DE1917327004D DE327004DD DE327004C DE 327004 C DE327004 C DE 327004C DE 1917327004 D DE1917327004 D DE 1917327004D DE 327004D D DE327004D D DE 327004DD DE 327004 C DE327004 C DE 327004C
- Authority
- DE
- Germany
- Prior art keywords
- carbon dioxide
- rash
- production
- panels
- cement fiber
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/0231—Carbon dioxide hardening
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Description
Verfahren zur Herstellung von ausschlagfreien Zementfaserstoffplatten. e Die aus Zement- und Zuschlagstoffen hergestellten künstlichen Schieferplatten, zu denen auch die Dachplatten; wie z. B. die Zementfaserstoffplatten, gehören,. zeigen den Übelstand, daß dieselben, den Witterungseinflüssen ausgesetzt, häßlich aussehende weiße Ausschläge zeigen. .Process for the production of rash-free cement fiber panels. e Artificial slates made of cement and aggregates, to which also the roof panels; such as B. the cement fiber panels, include ,. show the disadvantage that they are ugly when exposed to the weather showing looking white rashes. .
Eine große Anzahl von Versuchen wurde ausgeführt, um die weißen Ausschwitzungen dadurch zu bekämpfen; daß man die Platten mit Kohlendioxyd behandelte. Alle diese Versuche führten nicht zu dem gewünschten Ziele, da die genauen Bedingungen, unter denen das Kohlendioxyd zur Einwirkung auf-. die Platten zu bringen -ist, nicht erkannt wurden.A large number of attempts have been made to remove the white exudates to fight thereby; that the plates were treated with carbon dioxide. All these Attempts did not lead to the desired goal, given the exact conditions below which the carbon dioxide to act on. to bring the plates -is not recognized became.
Im -Laufe der Untersuchungen hat sich nämlich die Tatsache ergeben, daß die Zementasbestplatten oder, allgemein gesprochen, die Zementfaserstoffplatten sich in einem Zustande befinden können, in welchem dieselben nicht oder praktisch unzulänglich auf Kohlendioxydgas reagieren. Dieser Zustand ist dann vorhanden, wenn die Platten mit Wasser gesättigt sind oder wenn deren Feuchtigkeitsgehalt auf -zwei Prozent oder darunter sinkt. Es müssen deshalb die Platten sich in einem Zustande befinden beziehungsweise vor oder während des Verfahrens, das Gegenstand der Erfindung bildet, in einen solchen Zustand gebracht werden, welcher innerhalb der bezeichneten Grenzen liegt.In the course of the investigations, the fact emerged that that the cement asbestos panels or, generally speaking, the cement fiber panels can be in a state in which they are not or practically react inadequately to carbon dioxide gas. This condition exists when the plates are saturated with water or when their moisture content is -two Percent or less drops. The plates must therefore be in one state located or before or during the process, the subject of the invention forms, are brought into such a state, which is within the designated Limits.
Zur Ausführung des Verfahrens lädt man Kohlendioxydgas oder kohlendioxydhaltige Gase so auf die in einer Kammer befindlichen Platten einwirken, daß dieselben allseitig umspült werden; dies kann bei gewöhnlichem Druck geschehen, mit oder ohne Benutzung des sogenannten Gegenstromprinzips, indem man frisches Gas mit Platten zusammenführt, die schon beinahe mit Kohlendioxydgas gesättigt sind, und noch nicht behandelte Platten mit Gas, welches bereits auf Platten eingewirkt hat, also schon einen Teil des Kohlendioxyds an die Ware- abgegeben hat.-Nach vollendeter Einwirkung des Kohlendioxyds sind die Platten in- ihrer chemischen Zusammensetzung so verändert, daß dieselben den Witterungseinflüssen ausgesetzt werden können, ohne daß.Aüsblühungen sich zeigen, auch ertragen die so behandelten Platten den ölfarbenanstrich. "To carry out the process, carbon dioxide gas or those containing carbon dioxide are charged Gases so act on the plates located in a chamber that the same on all sides be washed around; this can be done under normal pressure, with or without use the so-called countercurrent principle, by bringing fresh gas together with plates, which are almost saturated with carbon dioxide gas and have not yet been treated Plates with gas that has already acted on plates, so already a part of the carbon dioxide has released to the goods. -After the carbon dioxide has taken effect the plates are so changed in their chemical composition that the same can be exposed to the weather without blooming The panels treated in this way also endure the oil paint. "
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE327004T | 1917-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE327004C true DE327004C (en) | 1920-10-04 |
Family
ID=6184510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1917327004D Expired DE327004C (en) | 1917-09-05 | 1917-09-05 | Process for the production of rash-free cement fiber panels |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE327004C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE746297C (en) * | 1932-05-14 | 1944-06-15 | Aloys Van Gries Dr Ing | Device for mixing long fiber materials with dust-like binders |
EP2952310A1 (en) * | 2014-06-03 | 2015-12-09 | Eternit NV | A process for providing a fiber cement product |
WO2015185392A1 (en) * | 2014-06-03 | 2015-12-10 | Eternit Nv | A process for providing a fiber cement product |
-
1917
- 1917-09-05 DE DE1917327004D patent/DE327004C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE746297C (en) * | 1932-05-14 | 1944-06-15 | Aloys Van Gries Dr Ing | Device for mixing long fiber materials with dust-like binders |
EP2952310A1 (en) * | 2014-06-03 | 2015-12-09 | Eternit NV | A process for providing a fiber cement product |
WO2015185392A1 (en) * | 2014-06-03 | 2015-12-10 | Eternit Nv | A process for providing a fiber cement product |
RU2710576C2 (en) * | 2014-06-03 | 2019-12-27 | Этернит Нв | Method of making article from fibrous cement |
US11498242B2 (en) | 2014-06-03 | 2022-11-15 | Eternit, NV | Process for providing a fiber cement product |
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