DE870078C - Process for the production of self-setting compounds - Google Patents

Process for the production of self-setting compounds

Info

Publication number
DE870078C
DE870078C DEF3679D DEF0003679D DE870078C DE 870078 C DE870078 C DE 870078C DE F3679 D DEF3679 D DE F3679D DE F0003679 D DEF0003679 D DE F0003679D DE 870078 C DE870078 C DE 870078C
Authority
DE
Germany
Prior art keywords
self
production
setting compounds
fly ash
lime sludge
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
DEF3679D
Other languages
German (de)
Inventor
Karl Dr-Ing Dietz
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Priority to DEF3679D priority Critical patent/DE870078C/en
Application granted granted Critical
Publication of DE870078C publication Critical patent/DE870078C/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
    • C04B28/18—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 mixtures of the silica-lime type
    • 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
    • C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use 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)
  • Combustion & Propulsion (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)

Description

Verfahren zur Herstellung selbst erhärtender Massen In dem Patent 8:59426 ist ein, Verfahren zur Herstellung selbst erhärtender Massen beschrieben, nach dem Flugaschen, wie sie bei der Wärmeerzeugung aus Industrieanlagen anfallen, und Abfallkalkschlämme von der Zersetzung von Calciumcarbid miteinander vermischt werden.Method of making self-setting compositions In the patent 8: 59426 describes a process for the production of self-hardening compositions, after the fly ash, as it occurs when generating heat from industrial plants, and waste lime sludge from the decomposition of calcium carbide mixed together will.

Bei der weiteren Ausgestaltung des Verfahrens nach dem Patent 859 426 wurde gefunden, daß eine außerordentliche Erleichterung in der Verarbeitung der Mischungen aus Abfallkalkschlämmen und Flugaschen erreicht werden kann, wenn man vor, bei oder nach der Vermischung der Bestandteile noch etwas Alkalilauge, zweckmäßig in Form einer Lösung von 3o bis 40 % Gehalt an: Alkalihydroxyd, zugibt. Die Plastizität der mit Alkalilauge gemischten Massen: ist erheblich gröiß@er als ohne diesen Zusatz und erlaubt vor allen Dingen die Verarbeitung der Massen auf der Strangpresse, während man sonst gezwungen ist, mit Schlagpressen oder mit hydraulischen Pressen zu arbeiten.In the further development of the process according to the patent 859 426 it was found that an extraordinary simplification in the processing of the mixtures of waste lime sludge and fly ash can be achieved if you add a little alkali lye before, during or after the mixing of the constituents, expediently in the form of a Solution of 3o to 40% content of: alkali hydroxide, adds. The plasticity of the masses mixed with alkali lye: is considerably greater than without this addition and, above all, allows the masses to be processed on the extrusion press, while otherwise one is forced to work with impact presses or hydraulic presses.

Überraschenderweise hat sich außerdem ergeben, daß, durch den Alkalihydroxydzusatz nicht nur die Verarbeitbarkeit der Mischungen ganz erheblich verbessert wird, sondern daß auch die daraus hergestellten Formkörper nach dem Erhärten ganz erheblich bessere mechanische Eigenschaften, insbesondere höhere Druckfestigkeit und Zugfestigkeit, aufweisen. So ist es beispielsweise möglich, durch einen Zusatz von etwa 2'/o an 35o/oi.ger Natronlauge zu einer Mischung aus zwei Gewichtsteilen Abfallkalkschlamm und einem Gewichtsteil Flugasche eine Erhöhung der Druckfestigkeit und der Zugfestigkeit um bis zu Zoo 0/ö zu erreichen.Surprisingly, it has also been found that, by the addition of alkali hydroxide not only the The processability of the mixtures has been considerably improved becomes, but that also the molded bodies produced therefrom after hardening completely Significantly better mechanical properties, especially higher compressive strength and tensile strength. It is possible, for example, by adding from about 2% to 35% sodium hydroxide solution to a mixture of two parts by weight Waste lime sludge and one part by weight of fly ash increase the compressive strength and the tensile strength to reach up to zoo 0 / ö.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung selbst erhärtender Massen nach Patent 85942,6,-dadurch gekennzeichnet, daiß den Mischungen aus Flugasche und Abfallkalkschlamm ein Zusatz von Alkalilauge gegeben wird.PATENT CLAIM: Process for the production of self-hardening compounds according to patent 85942.6, characterized in that the mixtures of fly ash and Waste lime sludge is given an addition of alkali.
DEF3679D 1944-02-22 1944-02-22 Process for the production of self-setting compounds Expired DE870078C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF3679D DE870078C (en) 1944-02-22 1944-02-22 Process for the production of self-setting compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF3679D DE870078C (en) 1944-02-22 1944-02-22 Process for the production of self-setting compounds

Publications (1)

Publication Number Publication Date
DE870078C true DE870078C (en) 1953-03-09

Family

ID=7083892

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF3679D Expired DE870078C (en) 1944-02-22 1944-02-22 Process for the production of self-setting compounds

Country Status (1)

Country Link
DE (1) DE870078C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027583B (en) * 1953-12-31 1958-04-03 Steinkohlen Elek Zitaet Ag Process for the production of fired components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027583B (en) * 1953-12-31 1958-04-03 Steinkohlen Elek Zitaet Ag Process for the production of fired components

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