CH166136A - Process for the production of a weatherproof and volume-resistant, acid-free cement-concrete mass with wood flour as filling material. - Google Patents

Process for the production of a weatherproof and volume-resistant, acid-free cement-concrete mass with wood flour as filling material.

Info

Publication number
CH166136A
CH166136A CH166136DA CH166136A CH 166136 A CH166136 A CH 166136A CH 166136D A CH166136D A CH 166136DA CH 166136 A CH166136 A CH 166136A
Authority
CH
Switzerland
Prior art keywords
wood flour
volume
acid
resistant
weatherproof
Prior art date
Application number
Other languages
German (de)
Inventor
Kiefer Adolf
Original Assignee
Kiefer Adolf
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 Kiefer Adolf filed Critical Kiefer Adolf
Publication of CH166136A publication Critical patent/CH166136A/en

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
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/10Lime cements or magnesium oxide cements
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Description

  

      Torfahren    zur Herstellung einer     witterungs-    und volumenbeständigen,  säurefreien     Zement-Betonmasse    mit Holzmehl als Füllmaterial.    Bekanntlich war es bis jetzt nur möglich       Holzmehl        als     durch Verwendung  von     Magnesit    und     Ohlormagnesiumlauge    zu  einer festen Masse zu verbinden, welche  aber den Nachteil hatte, dass sie nicht volu  menbeständig und     säurefrei    war und daher  nur in begrenztem Masse Verwendung finden  konnte.

   Es wurden auch schon Versuche ge  macht, Holzmehl mit     Portlandzement    zu einer  festen     Betonmasse    zu verbinden, aber die  Erfahrung hat gezeigt, dass solche Beton  massen bei hinzutretender Feuchtigkeit das  Volumen verändern, indem das Holzmehl zu  arbeiten beginnt, aufquillt und in den Beton  massen     Rissbildungen    verursacht.  



  Alle diese Mängel werden durch das  Verfahren vorliegender     Erfindung    beseitigt  gemäss welchem eine     witterungs-    und volumen  beständige, säurefreie     Zement-Betonmasse    mit  Holzmehl als Füllmaterial hergestellt wird.  Das Verfahren kann beispielsweise so aus  führt werden:  Das zu verwendende Holzmehl wird vor    der Zusammenmischung mit     Portlandzement     mittelst einem     Fettkalkhydrat    innig vermischt  und verrieben, wodurch das Arbeiten und       Quellen    des Holzmehls in der feuchten Be  tonmasse verhindert wird und dieselbe volu  menbeständig bleibt.

   Das so präparierte Holz  mehl wird nun trocken mit dem als Binde  mittel dienenden     Portlandzement    innig ver  mischt und entsprechend mit reinem Wasser  angefeuchtet, wodurch eine     witterungs-    und  volumenbeständige, säurefreie     Zement-Beton-          masse    entsteht, die zu den verschiedensten  Bauzwecken verwendet und zum Beispiel  durch Stampfen geformt werden kann. Säure  frei ist diese     Zement-Betonmasse    deshalb,  weil dieselbe aus vollständig     säurefreien    Ma  terialien zusammengesetzt ist.

   Durch das prä  parierte Holzmehl und die Eigenschaften des       Portlandzementes    ist diese     Zement-Beton-          masse    auch witterungsbeständig.



      Gate drives for the production of a weatherproof and volume-resistant, acid-free cement-concrete mass with wood flour as filling material. It is known that until now it has only been possible to combine wood flour into a solid mass by using magnesite and carbon dioxide, but this had the disadvantage that it was not volume stable and acid-free and could therefore only be used to a limited extent.

   Attempts have also been made to combine wood flour with Portland cement to form a solid concrete mass, but experience has shown that such concrete masses change the volume with added moisture, in that the wood flour begins to work, swells and causes cracks to form in the concrete .



  All of these deficiencies are eliminated by the method of the present invention, according to which a weatherproof and volume-resistant, acid-free cement-concrete mass is produced with wood flour as the filler material. The process can be carried out as follows, for example: The wood flour to be used is intimately mixed and rubbed in by means of a fatty lime hydrate before being mixed with Portland cement, which prevents the wood flour from working and swelling in the moist concrete mass and the same remains volume-stable.

   The wood flour prepared in this way is then mixed dry with the Portland cement, which is used as a binding agent, and moistened accordingly with pure water, creating a weatherproof, volume-resistant, acid-free cement-concrete mass that is used for a wide variety of building purposes and, for example, by Pounding can be shaped. This cement-concrete mass is acid-free because it is composed of completely acid-free materials.

   Thanks to the prepared wood flour and the properties of Portland cement, this cement-concrete mass is also weather-resistant.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer witterungs- und volumenbeständigen, säurefreien Zement- Betonmasse mit Holzmehl als Füllmaterial, dadurch gekennzeichnet, dass man Holzmehl, welches mit einem Fettkalkhydrat innig ver mischt und verrieben wurde, trocken mit Portlandzement innig vermischt und die -Mischung mit reinem Wasser anfeuchtet. PATENT CLAIM: A process for the production of a weatherproof and volume-resistant, acid-free cement-concrete mass with wood flour as the filler material, characterized in that wood flour, which has been intimately mixed and rubbed with a fatty lime hydrate, is intimately mixed dry with Portland cement and the mixture is mixed with pure water moistened.
CH166136D 1932-12-09 1932-12-09 Process for the production of a weatherproof and volume-resistant, acid-free cement-concrete mass with wood flour as filling material. CH166136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH166136T 1932-12-09

Publications (1)

Publication Number Publication Date
CH166136A true CH166136A (en) 1933-12-31

Family

ID=4418762

Family Applications (1)

Application Number Title Priority Date Filing Date
CH166136D CH166136A (en) 1932-12-09 1932-12-09 Process for the production of a weatherproof and volume-resistant, acid-free cement-concrete mass with wood flour as filling material.

Country Status (1)

Country Link
CH (1) CH166136A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752430C (en) * 1940-03-09 1953-05-11 Dorothea Koch Process for the production of a mineralized fiber base
WO1987004700A1 (en) * 1986-01-31 1987-08-13 Leon Kruss Composite cement block

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752430C (en) * 1940-03-09 1953-05-11 Dorothea Koch Process for the production of a mineralized fiber base
WO1987004700A1 (en) * 1986-01-31 1987-08-13 Leon Kruss Composite cement block

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