DE327907C - Process for the production of a porous cement or a porous, cementitious binder - Google Patents

Process for the production of a porous cement or a porous, cementitious binder

Info

Publication number
DE327907C
DE327907C DE1919327907D DE327907DD DE327907C DE 327907 C DE327907 C DE 327907C DE 1919327907 D DE1919327907 D DE 1919327907D DE 327907D D DE327907D D DE 327907DD DE 327907 C DE327907 C DE 327907C
Authority
DE
Germany
Prior art keywords
cement
porous
production
cementitious binder
binder
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
DE1919327907D
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.)
ADOLF GROSCHE
Original Assignee
ADOLF GROSCHE
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 ADOLF GROSCHE filed Critical ADOLF GROSCHE
Application granted granted Critical
Publication of DE327907C publication Critical patent/DE327907C/en
Expired legal-status Critical Current

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
    • C04B28/02—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 containing hydraulic cements other than calcium sulfates

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 eines porösen Zements oder, eines porösen, zementartigen Bindemittels. Die Erfindung bezieht sich auf ein Verfahren 'zur ' Herstellung eines porösen Zements oder eines- porösen zementartigen Bindemittels und besteht darin, daß dem Zement oder dem zementartigen Bindemittel ein Zusatz von MetallpuIvern beigemischt wird, welche mit dem Zement "allein--bei gewöhnlicher Temperatur nicht, sondern erst bei beträchtlicher Erwärmung reagieren, z. B. ein Zusatz von Zinkstaub, und daß außerdem dem Zement oder dem zementartigen Bindemittel geringe Mengen stark mit ihm reagierender Salze oder Basen, wie Ca C12, Mg C12, Nag C03, KOH, Na OH, zugemischt werden, welche infolge ihrer starken Einwirkung -auf das Bindemittel eine beträchtliche -Temperaturerhöhung während des Abbindens hervorrufen. Sobald die Temperaturerhöhung eintritt, fängt der Kalk des Bindemittels an, mit dem Metallstaub zu reagieren. Infolge der Wasserstoffentwicklung wird das Bindemittel langsam mit - Wasserstoffbläschen durchsetzt, wodurch ein Aufblasen des Bindemittels herbeigeführt wird. Da die Temperaturerhöhung aber nur eine bestimmte Zeit anhält, und dann wieder vergeht, so wird entsprechend diiesern Temperaturabfall die Gasentwicklung selbsttätig abgeschaltet, so daß das Bindemittel nunmehr in Ruhe abbinden kann. Die Folge dieses ungestörten Abbindens ist, daß eine hohe Festigkeit des Bindemittels erzielt wird. -Darin besteht der Fortschritt des neuen Verfahrens gegenüber der bekannten Vermischung von Zement u. dgl. mit Kalkhydrat und Metallpulver, das bereits bei mäßiger Erwärmung, wie sie bei dem normalen Abbinden des Zementes auftritt mit dem Zement reagiert.Process for the production of a porous cement or, a porous, cementitious binder. The invention relates to a method 'for' Production of a porous cement or a porous cementitious binder and consists in adding an additive to the cement or cementitious binder of metal powders is added, which with the cement "alone - with ordinary Do not react to the temperature, but only when the temperature rises considerably, e.g. B. a Addition of zinc dust, and that also the cement or the cementitious binder small amounts of salts or bases that react strongly with it, such as Ca C12, Mg C12, Nag C03, KOH, Na OH, are added, which as a result of their strong influence -A considerable temperature increase on the binder during setting cause. As soon as the temperature increase occurs, the lime in the binder catches to react with the metal dust. As a result of the evolution of hydrogen that will Binder slowly interspersed with - hydrogen bubbles, causing an inflation the binder is brought about. Since the temperature increase is only a certain If time lasts, and then passes again, this temperature drop will correspond accordingly the gas development automatically switched off, so that the binder is now at rest can set. The consequence of this undisturbed setting is that it has a high level of strength of the binder is achieved. -This is the progress of the new procedure compared to the known mixing of cement and the like with hydrated lime and metal powder, this already with moderate warming, as it is with the normal setting of the cement occurs with the cement reacts.

Beispielsweise wird bei dem neuen Verfahren dem Zement z Prozent Zinkstaub beigemischt und in dem zum Anmachen des Zements dienenden Wasser z Prozent Chlorkalzium aufgelöst.For example, in the new process, the cement becomes z percent zinc dust mixed in and in the water used to make the cement z percent calcium chloride dissolved.

Je nach dem Verwendungszweck können dem Zement Zuschlagstoffe, wie-Sand, Kiesel, Schotter o. dgl., beigemischt werden, und es können durch- die Wahl und die Menge der Zuschlagstoffe die Festigkeit, das Raumgewicht und die sonstigen Eigenschäften des Betons verschieden. geändert werden. Die so erhaltenen Betons haben ein geringes Raumgewicht, sind nagelbar, leicht zu sägen und zu durchbrechen; leiten den Schall und die Wärme schlecht und sind leicht und billig herzustellen.Depending on the intended use, aggregates such as sand, Pebbles, crushed stone or the like., Are added, and it can through the choice and the amount of aggregates, the strength, the density and the other properties of concrete. be changed. The concretes thus obtained have a low one Volume weight, are nailable, easy to saw and break through; conduct the sound and heat poor and are easy and cheap to manufacture.

Claims (1)

PATENT-ANSPRUCFI: Verfahren zur Herstellung eines porösen Zements oder eines porösen, zementartigen Bindemittels durch Aufblasen mittels eines beigemengten gaserzeugenden Metallpulvers, dadurch gekennzeichnet, daß dem Zement o. dgl. ein Metallpulver (wie z. B. Zinkstaub), welches mit dem Zement o. dgl. erst bei beträchtlicher Erwärmung reagiert, und gleichzeitig ein mit- dem -Zement o. dgl. stark reagierendes Salz oder eine mit -dem Zement o. dgl. stark reagierende Base (wie z. B. Chlorkalzium - oder Natronlauge) beigemischt werden.PATENT ANSPRUCFI: Process for the production of a porous cement or a porous, cementitious binder by inflation by means of an admixed gas-generating metal powder, characterized in that the cement or the like Metal powder (such as zinc dust), which with the cement or the like Warming reacts, and at the same time a strongly reacting with the cement or the like Salt or a base that reacts strongly with the cement or the like (e.g. calcium chloride - or caustic soda).
DE1919327907D 1919-05-09 1919-05-09 Process for the production of a porous cement or a porous, cementitious binder Expired DE327907C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE327907T 1919-05-09

Publications (1)

Publication Number Publication Date
DE327907C true DE327907C (en) 1920-10-16

Family

ID=6185451

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1919327907D Expired DE327907C (en) 1919-05-09 1919-05-09 Process for the production of a porous cement or a porous, cementitious binder

Country Status (1)

Country Link
DE (1) DE327907C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059335B (en) * 1951-02-16 1959-06-11 Alucrete Const Ltd Process for producing a cell cement or plaster of paris
US4736706A (en) * 1985-06-07 1988-04-12 Mars, Inc. Animal litter and process for the production thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059335B (en) * 1951-02-16 1959-06-11 Alucrete Const Ltd Process for producing a cell cement or plaster of paris
US4736706A (en) * 1985-06-07 1988-04-12 Mars, Inc. Animal litter and process for the production thereof

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