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AT67678B - Process for the production of hydraulic cement. - Google Patents

Process for the production of hydraulic cement.

Info

Publication number
AT67678B
AT67678B AT67678DA AT67678B AT 67678 B AT67678 B AT 67678B AT 67678D A AT67678D A AT 67678DA AT 67678 B AT67678 B AT 67678B
Authority
AT
Austria
Prior art keywords
cement
production
hydraulic cement
hydraulic
lime
Prior art date
Application number
Other languages
German (de)
Inventor
Carl Lorens Carlson
Original Assignee
Carl Lorens Carlson
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 Carl Lorens Carlson filed Critical Carl Lorens Carlson
Application granted granted Critical
Publication of AT67678B publication Critical patent/AT67678B/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
    • C04B7/00Hydraulic cements
    • C04B7/24Cements from oil shales, residues or waste other than slag
    • 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
    • C04B7/00Hydraulic cements
    • C04B7/14Cements containing slag
    • C04B7/147Metallurgical slag
    • C04B7/153Mixtures thereof with other inorganic cementitious materials or other activators
    • C04B7/17Mixtures thereof with other inorganic cementitious materials or other activators with calcium oxide containing activators
    • 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
    • C04B18/00Use 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
    • C04B18/04Waste materials; Refuse
    • C04B18/14Waste materials; Refuse from metallurgical processes
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • 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)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Catalysts (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung von hydraulischem Zement. 
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 sprechend den von dein fertigen Zement zu forderndon   Featigkoitseigenschaften   abgeändert werden. Bei Anwendung von   30% Gicbtstaub und 70% gelöschtem Kalk illt oin Zement   erhalten worden, welcher bei vorgenommenen   Festigkeitsproben   in einer Mischung von drei Gewichtsteilen Normalsand auf einen Gewichtsteil Zement eine Druckfestigkeit von   209kg/cm2 nach   8 Tagen Bindezeit und von   224 kgfcml nach   28 Tagen Bindezeit aufwies. 



   Die theoretische Erklärung der oben beschriebenen Eigenschaft des Gichtstaubes, mit Kalk einen hydraulischen Zement zu bilden, liegt möglicherweise darin, dass dieser Staub grosse Mengen in verdünnter Salzsäure und verdünnter Sodalösung lösliche Kieselsäure oder Tonerde, welche mit dem Kalk beim Binden leicht in Reaktion treten können, enthält. Bei Untersuchungen des Gichtstaubes von den Filtern eines Trocken-Gaareinigungsapparates ist ein Gehalt von in dieser Weise löslicher Kieselsäure von etwa 30% und von Tonerde von etwa 20% gefunden worden. 



   Anstatt den Gichtstaub mit gewöhnlichem gebranntem Kalk zu vermischen, kann man denselben auch in Zement verschiedener Art, z. B. Portlandzement, Schlackenzement oder Puzzolanzement oder in hydraulischen Kalk einmischen, wodurch die Mischung Festigkeitseigenschaften erlangt, welche die des gewöhnlichen   Zementes bzw. des hydrauHschen Katkes   allein wesentlich übertreffen. Ein Zusatz von bis zu 30% Gichtstaub hat sich als vorteilhaft erwiesen und bei einem Zusatz von   20 bis 30% ist   eine Vermehrung der Festigkeit um 20 bis 30% beobachtet worden.

   Die Erklärung dieser Wirkung dürfte wahrscheinlich darin zu finden sein, dass sowohl gewöhnlicher Zement als auch hydraulischer Kalk eine bedeutende Menge von Kalk, welche sonst untätig bleibt, enthalten, die aber durch den Zusatz von Gichtstaub dazu gebracht wird, mit demselben beim Binden des Zementes in Reaktion zu treten und dadurch die Festigkeit des Zementes zu erhöhen. 



   PATENT-ANSPRÜCHE :
1. Verfahren zur Herstellung von hydraulischem Zement, dadurch gekennzeichnet, dass auf trockenem Wege gewonnener Gichtstaub, der zweckmässig von den groben Teilchen befreit ist, mit gebranntem Kalk (gelöscht oder   ungelöscht)   vermischt wird.



   <Desc / Clms Page number 1>
 



  Process for the production of hydraulic cement.
 EMI1.1
 

 <Desc / Clms Page number 2>

 According to the requirement of your finished cement, the feature properties are modified. With the use of 30% gicbtstaub and 70% slaked lime, oin cement was obtained, which, when strength tests were carried out in a mixture of three parts by weight of normal sand to one part by weight of cement, had a compressive strength of 209 kg / cm2 after 8 days of binding time and of 224 kgfcml after 28 days of binding time exhibited.



   The theoretical explanation of the above-described property of gout dust to form a hydraulic cement with lime is possibly that this dust contains large quantities of silica or clay soluble in dilute hydrochloric acid and dilute soda solution, which can easily react with the lime when it binds, contains. In investigations of the gout dust from the filters of a dry cooker cleaning apparatus, a content of silica soluble in this way of about 30% and of clay of about 20% has been found.



   Instead of mixing the gout dust with ordinary quicklime, it can also be mixed with cement of various types, e.g. B. Portland cement, slag cement or pozzolan cement or mix in hydraulic lime, whereby the mixture achieves strength properties which significantly exceed those of the ordinary cement or the hydraulic catalytic converter alone. An addition of up to 30% gout dust has proven to be advantageous and with an addition of 20 to 30% an increase in strength by 20 to 30% has been observed.

   The explanation for this effect is probably to be found in the fact that both ordinary cement and hydraulic lime contain a considerable amount of lime, which otherwise remains inactive, but which, by the addition of gout dust, is made to move with it when the cement is bound To react and thereby increase the strength of the cement.



   PATENT CLAIMS:
1. A process for the production of hydraulic cement, characterized in that dry dust, which is expediently freed from the coarse particles, is mixed with quicklime (slaked or unslaked).

 

Claims (1)

2. Verfahren nach Anspruch l, dadurch gekennzeichnet, dass der Gichtstaub mit gewöhnlichem hydraulischem Zement oder hydraulischem Kalk vonmscbt wird. 2. The method according to claim l, characterized in that the blast furnace dust is vonmscbt with ordinary hydraulic cement or hydraulic lime.
AT67678D 1912-08-19 1912-12-21 Process for the production of hydraulic cement. AT67678B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE620X 1912-08-19

Publications (1)

Publication Number Publication Date
AT67678B true AT67678B (en) 1915-01-25

Family

ID=82801980

Family Applications (1)

Application Number Title Priority Date Filing Date
AT67678D AT67678B (en) 1912-08-19 1912-12-21 Process for the production of hydraulic cement.

Country Status (4)

Country Link
AT (1) AT67678B (en)
FR (1) FR452399A (en)
GB (1) GB191302239A (en)
NL (1) NL620C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087285A (en) * 1973-06-01 1978-05-02 Kurz Fredrik W A Method for strengthening vitreous products and composition boards
US5245122A (en) * 1992-08-26 1993-09-14 Conversion Systems, Inc. Method and mixture for treating electric arc furnace dust

Also Published As

Publication number Publication date
FR452399A (en) 1913-05-15
GB191302239A (en) 1913-12-18
NL620C (en) 1915-04-01

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