DE595924C - Process for delaying the setting of hydraulic binders - Google Patents

Process for delaying the setting of hydraulic binders

Info

Publication number
DE595924C
DE595924C DEN35371D DEN0035371D DE595924C DE 595924 C DE595924 C DE 595924C DE N35371 D DEN35371 D DE N35371D DE N0035371 D DEN0035371 D DE N0035371D DE 595924 C DE595924 C DE 595924C
Authority
DE
Germany
Prior art keywords
setting
glue
delaying
hydraulic binders
caustic soda
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
DEN35371D
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEN35371D priority Critical patent/DE595924C/en
Application granted granted Critical
Publication of DE595924C publication Critical patent/DE595924C/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
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/38—Polysaccharides or derivatives thereof
    • C04B24/383—Cellulose or derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

Verfahren zur Verzögerung der Abbindung hydraulischer Bindemittel Bekannt ist die Verwendung von lehnenden Stoffen bei hydraulischen Bindemitteln, wie Gips, um das Abbinden zu verzögern. Wenn man diese Leime direkt den Grundstoffen beimischt, so vergeht eine ziemlich lange Zeit, bis dieselben verarbeitet werden können, so daß Zeit verlorengeht. Gibt man sie in einem späteren Zeitpunkt zu, wo das Material bereits im Abbinden begriffen ist, so hält es schwer, alle Teilchen des Gemisches mit Leim zu tränken, so daß meistens Klumpenhildun,g entsteht, auch. wird die Mischung im Abbinden gestört, wodurch sie an Kraft verliert.Method for retarding the setting of hydraulic binders The use of leaning materials in hydraulic binders is known, like plaster of paris to delay setting. When you get these glues directly to the raw materials admixed, it takes a fairly long time before they are processed so that time is lost. If you admit it at a later point in time, where The material is already setting, so it is difficult to hold all the particles To soak the mixture with glue, so that mostly lump build-up arises, too. the mixture is disturbed in setting, causing it to lose strength.

Gegenstand,des vorliegenden Verfahrens ist es nun, diese Leime .erst in der- wäßrigen Suspension aus für sich allein nicht oder fast nicht leimenden Stoffen entstehen zu lassen, so daß die Bildung des Leimes gleichzeitig mit dem Abbinden der hydraulischen Bindemittel vor sich geht. So kann man z. B. einen stark leimenden Kleister entwickeln, indem man Gips oder Leichtbaumassen Kartoffelmehl und Ätznatron-beimischt, welche in etwa z o Minuten zu einem stark lehnenden und die Abbindung verzögernden Kleister werden. Dieses Verfahren ist an sich zur Herstellung von Kleister bekannt, jedoch nicht die ,gleichzeitige Erzeugung des Kleisters mit dem Abbinden des Gipses. Natürlich kann man auch andere Leimsorten auf ähnliche bekannte Weise in statu nascendi verwenden. So kann man z. B. das Ätznatron ganz oder zum Teil ersetzen durch Sulfatablauge, welche noch freies Ätznatron enthält, so daß sie auch zu dem beschriebenen Ergebnis führt. Eine zweckmäßige Ausführungsform des Verfahrens besteht darin, daß man die leimenden Stoffe durch Zugabe von überschüssigem Alkali alkalisch herstellt, wodurch sie in der Mischung noch besser wirken.The subject matter of the present proceedings is to use these glues In the aqueous suspension, they do not or almost not glue on their own To let substances arise, so that the formation of the glue simultaneously with the Setting of the hydraulic binder is going on. So you can z. B. one strong Develop gluing paste by adding plaster of paris or lightweight potato flour and caustic soda-admixed, which in about z o minutes to a strongly leaning and the setting-retarding paste. This process is in itself for manufacture known from paste, but not the simultaneous production of paste with the setting of the plaster of paris. Of course you can also use other types of glue on similar ones use known way in statu nascendi. So you can z. B. the caustic soda whole or partially replaced by sulphate waste liquor, which still contains free caustic soda, so that it also leads to the result described. An expedient embodiment of the method consists in the fact that the sizing substances by adding excess Alkali makes them alkaline, which makes them work even better in the mixture.

Claims (1)

PATENTANSPRÜCHE: r. Verfahren zur Verzögerung der Abbindung hydraulischer Bindemittel durch Leim; dadurch gekennzeichnet, daß der Leim erst in der aus dem hydraulischen ,Bindemittel und Wasser bestehenden . Masse aus durch Reaktion miteinander Leim bildenden Stoffen erzeugt wird. a. Verfahren nach Anspruch z, dadurch gekennzeichnet, daß der Masse Mehl, wie z. @B. Kartoffelmehl, und Ätznatron zugesetzt wird. 3. Verfahren nach Anspruch z, dadurch gekennzeichnet, daß -das Ätznatron ganz oder teilweise durch Sulfatablauge ersetzt wird.PATENT CLAIMS: r. Method of delaying the setting of hydraulic Binder by glue; characterized in that the glue only in the from the hydraulic, binder and water existing. Mass out by reacting with each other Glue-forming substances is produced. a. Method according to claim z, characterized in that that the mass of flour, such as. @B. Potato flour, and caustic soda is added. 3. Procedure according to claim z, characterized in that -the caustic soda wholly or partially is replaced by sulphate waste liquor.
DEN35371D 1933-06-20 1933-06-20 Process for delaying the setting of hydraulic binders Expired DE595924C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN35371D DE595924C (en) 1933-06-20 1933-06-20 Process for delaying the setting of hydraulic binders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN35371D DE595924C (en) 1933-06-20 1933-06-20 Process for delaying the setting of hydraulic binders

Publications (1)

Publication Number Publication Date
DE595924C true DE595924C (en) 1935-06-18

Family

ID=7346994

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN35371D Expired DE595924C (en) 1933-06-20 1933-06-20 Process for delaying the setting of hydraulic binders

Country Status (1)

Country Link
DE (1) DE595924C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856304A (en) * 1953-12-28 1958-10-14 Kaiser Gypsum Company Inc Cementitious compositions and method of making the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856304A (en) * 1953-12-28 1958-10-14 Kaiser Gypsum Company Inc Cementitious compositions and method of making the same

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