DE327004C - Process for the production of rash-free cement fiber panels - Google Patents

Process for the production of rash-free cement fiber panels

Info

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
Application number
DE1917327004D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EDUARD STEIGER DR
Original Assignee
EDUARD STEIGER DR
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EDUARD STEIGER DR filed Critical EDUARD STEIGER DR
Application granted granted Critical
Publication of DE327004C publication Critical patent/DE327004C/en
Expired 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
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/02Selection of the hardening environment
    • C04B40/0231Carbon 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)

PATENT-ANsPRUcIi: Verfahren zur Herstellung von ausschlagfreien Zementfaserstoffplatten unter Verwendung von Kohlendioxyd oder kohlendioxydhaltigen Gasen, dadurch gekennzeichnet, daß. man Kohlendioxyd oder kohlendioxydhaltige Gase unter normalen Druck- und Temperaturverhältnissen auf solche Zementfäserstoffplatten zur Einwirkung bringt, die zwar einen Feuchtigkeitsgehalt von mehr als a Prozent besitzen, jedoch nicht mit Wasser gesättigt sind.PATENT APPLICATION: Process for the production of rash-free cement fiber panels using carbon dioxide or gases containing carbon dioxide, characterized in that, that. carbon dioxide or gases containing carbon dioxide under normal pressure and temperature conditions brings to such cement pulp panels to the effect that although a moisture content of more than a percent but are not saturated with water.
DE1917327004D 1917-09-05 1917-09-05 Process for the production of rash-free cement fiber panels Expired DE327004C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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