DE4316258A1 - Process for producing lightweight concrete components or porous concrete components or insulation or barrier materials from aluminium-containing waste materials from composite materials - Google Patents

Process for producing lightweight concrete components or porous concrete components or insulation or barrier materials from aluminium-containing waste materials from composite materials

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Publication number
DE4316258A1
DE4316258A1 DE19934316258 DE4316258A DE4316258A1 DE 4316258 A1 DE4316258 A1 DE 4316258A1 DE 19934316258 DE19934316258 DE 19934316258 DE 4316258 A DE4316258 A DE 4316258A DE 4316258 A1 DE4316258 A1 DE 4316258A1
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DE
Germany
Prior art keywords
materials
concrete components
aluminium
insulation
waste
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.)
Withdrawn
Application number
DE19934316258
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German (de)
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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 DE19934316258 priority Critical patent/DE4316258A1/en
Publication of DE4316258A1 publication Critical patent/DE4316258A1/en
Withdrawn legal-status Critical Current

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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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/02—Elements
    • C04B22/04—Metals, e.g. aluminium used as blowing agent
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Process for producing lightweight concrete components or porous concrete components or insulation or barrier materials from waste materials from composite materials, which is characterised in that recycled materials from composite materials, which contain a certain proportion of aluminium, are finely milled and admixed with water and a strongly alkaline hydraulic binder such as cement so that, owing to the amphoteric character of the aluminium, hydrogen is evolved and this foams the setting concrete.

Description

Die Erfindung betreffen Verfahren zur Herstellung von Leichtbetonbauteilen bzw. Porenbetonbauteilen oder Isolier- bzw. Dämmstoffen aus Verbundwerkstoffabfallstoffen, die Aluminium enthalten nach dem Oberbegriff des Anspruchs 1.The invention relates to processes for the production of Lightweight concrete components or aerated concrete components or insulating or Insulation materials from composite waste materials, the aluminum included according to the preamble of claim 1.

Leichtbeton bzw. Porenbeton oder gasgefüllte Isolierstoffe wie Heraklit®-Platten auf Zementbasis werden vielfach im Bauwesen eingesetzt. Dabei wird der isolierende Gasraum entweder durch zumischen von Poren enthaltenden Materialien wie Stroh, oder Styropor usw. oder durch Aufschäumen mittels gasbildender Zusatzstoffe hergestellt. Dabei wird auch aufgrund des amphotären Charakters von Aluminium dieses in feiner Verteilung zugegeben. Zum anderen werden bei den heute vielfach eingesetzten Verbundverpackungen auch Verpackungen eingesetzt die zu einem erheblichen Anteil Aluminium enthalten., daß nur sehr mühsam wieder zu verwenden ist. Eine Entsorgung und sinnvolle Verwendungsmöglichkeit derartiger Verpackungsmaterialien aus dem stätischen Hausmüll stellt ein erhebliches Problem dar.Lightweight concrete or aerated concrete or gas-filled insulating materials such as Heraklit® boards based on cement are widely used in construction used. The insulating gas space is either through mixing of pore-containing materials such as straw, or Styrofoam etc. or by foaming using gas-generating Additives manufactured. It is also due to the amphoteric Character of aluminum this added in fine distribution. On the other hand, those that are widely used today Composite packaging also used packaging to form one contain considerable amount of aluminum. That only very laborious is to be used again. Disposal and sensible Possibility of using such packaging materials from the Urban waste presents a significant problem.

Ausgehend vom Letzten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein kostengünstiges Verfahren zu Verfügung zu stellen, das die zwei Aufgaben, Entsorgung von aluminiumhaltigen Abfallstoffen, in Kombination mit der Herstellung kostengünstiger Isolier- bzw. Dämmaterialien, oder Porenbetonbaustoffen , übernehmen kann.Starting from the last prior art, the invention lies The task is to provide an inexpensive method make the two tasks, disposal of aluminum Waste materials, in combination with the production cheaper Insulating or insulating materials, or aerated concrete building materials, can take over.

Die Aufgabe wird gemäß der Erfindung mit den im kennzeichnenden Teil des Anspruchs 1 aufgeführten Merkmalen gelöst.The object is achieved according to the invention with the characterizing Features listed in claim 1 solved.

Mischt man eine fein zermahlenen Abfallstoff aus Verbundwerkstoffen wie zum Beispiel Tetrapak® Verpackungen mit Zement und Wasser, entsprechend Anspruch 1, so schäumt die Mischung aufgrund des Lösevorganges der Aluminiumanteile auf. Erhärtet nun der Zementleim so entstehet ein Leichtbeton aus dem Isolierplatten, Isoliersteine und Leichtbetonplatten gefertigt werden können. Das Verhältnis Zementstein/Porenvolumen, sprich die Dichte des Materials, läßt sich nach Anspruch 2 über die Mahlfeinheit des Abfallzusatzes und durch Beschleuniger bzw. Verzögerer gut regeln. Der Papieranteil in der Abfallfraktion wirkt aufgrund seiner faserigen Struktur günstig und kann teilweise entsprechend der Faserbetontechnologie als Bewehrungsersatz dienen. Will man auch die Kunstofffraktion zur Verbesserung der technologischen Eigenschaften des Leichtbetons ausnutzen, so muß man durch Zugabe eines geeigneten Lösungsmittel, ein Vernetzen dieser Fraktion nach Anspruch 3 ermöglichen.If you mix out a finely ground waste Composites such as Tetrapak® packaging with Cement and water, according to claim 1, so foams Mix up due to the dissolving process of the aluminum parts. If the cement glue hardens, a lightweight concrete is created from the Insulating panels, insulating stones and lightweight concrete panels can be. The ratio of cement paste / pore volume, i.e. the Density of the material can be according to claim 2 on the Grinding fineness of the waste additive and by accelerators or Regulate retarders well. The paper fraction in the waste fraction  works cheaply due to its fibrous structure and can partly according to the fiber concrete technology as Serve as reinforcement. Do you also want the plastic fraction to Improving the technological properties of lightweight concrete exploit, you have to add a suitable solvent, enable networking of this fraction according to claim 3.

Claims (3)

1. Verfahren zur Herstellung von Leichtbetonbauteilen bzw. Porenbetonbauteilen oder Isolier- bzw. Dämmstoffen aus Verbundwerkstoffabfallstoffen, die Aluminium enthalten, dadurch gekennzeichnet, daß man die Aluminium enthaltenden Verbundwerkstoff zermahlt und mit einem stark alkalischen hydraulischen Bindemittel wie Zement versetzt und so durch die einsetzende Wasserstoffentwicklung ein Aufschäumen der Masse vor dem Erstarren erfolgt.1. A process for the production of lightweight concrete components or cellular concrete components or insulating or insulating materials from composite waste materials which contain aluminum, characterized in that the aluminum-containing composite material is ground and mixed with a strongly alkaline hydraulic binder such as cement and thus by the onset of hydrogen evolution Foaming of the mass takes place before solidification. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß je nach dem gewünschten Porengehalt und der gewünschten Porengrößenverteilung unterschiedlich fein zermahlenes Abfallgut verwendet wird, bzw. die Zugabe von bestimmten Verzögerern bzw. Beschleunigern vorgenommen wird.2. The method according to claim 1, characterized, that depending on the desired pore content and the desired Pore size distribution of finely ground waste is used, or the addition of certain retarders or Accelerators is made. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Zement/Abfallstoffmischung, noch geeignete Lösemittel zugegeben werden, die vorhandene Polymere anlösen, und beim Erhärtungs- bzw. Trocknungsvorgang noch ein Vernetzung des Kunstoffanteils hervorrufen.3. The method according to claim 1, characterized, that the cement / waste mixture, still suitable solvents are added, dissolve the existing polymers, and at Hardening or drying process still crosslinking the Cause plastic content.
DE19934316258 1993-05-14 1993-05-14 Process for producing lightweight concrete components or porous concrete components or insulation or barrier materials from aluminium-containing waste materials from composite materials Withdrawn DE4316258A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934316258 DE4316258A1 (en) 1993-05-14 1993-05-14 Process for producing lightweight concrete components or porous concrete components or insulation or barrier materials from aluminium-containing waste materials from composite materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934316258 DE4316258A1 (en) 1993-05-14 1993-05-14 Process for producing lightweight concrete components or porous concrete components or insulation or barrier materials from aluminium-containing waste materials from composite materials

Publications (1)

Publication Number Publication Date
DE4316258A1 true DE4316258A1 (en) 1994-11-17

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ID=6488155

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Application Number Title Priority Date Filing Date
DE19934316258 Withdrawn DE4316258A1 (en) 1993-05-14 1993-05-14 Process for producing lightweight concrete components or porous concrete components or insulation or barrier materials from aluminium-containing waste materials from composite materials

Country Status (1)

Country Link
DE (1) DE4316258A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418310A1 (en) * 1994-05-26 1995-11-30 Ahg Baustoffhandelsgesellschaf High strength insulating porous concrete body prodn.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418310A1 (en) * 1994-05-26 1995-11-30 Ahg Baustoffhandelsgesellschaf High strength insulating porous concrete body prodn.

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