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DE808690C - Manufacture of wood concrete - Google Patents

Manufacture of wood concrete

Info

Publication number
DE808690C
DE808690C DEK1460A DEK0001460A DE808690C DE 808690 C DE808690 C DE 808690C DE K1460 A DEK1460 A DE K1460A DE K0001460 A DEK0001460 A DE K0001460A DE 808690 C DE808690 C DE 808690C
Authority
DE
Germany
Prior art keywords
cement
wood
sawdust
lime
concrete
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
DEK1460A
Other languages
German (de)
Inventor
Franz Burkhardt
Dipl-Ing Paul Kittelberger
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.)
PAUL KITTELBERGER DIPL ING
Original Assignee
PAUL KITTELBERGER DIPL ING
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 PAUL KITTELBERGER DIPL ING filed Critical PAUL KITTELBERGER DIPL ING
Priority to DEK1460A priority Critical patent/DE808690C/en
Application granted granted Critical
Publication of DE808690C publication Critical patent/DE808690C/en
Expired legal-status Critical Current

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
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • 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
    • C04B18/18Waste materials; Refuse organic
    • C04B18/24Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
    • C04B18/28Mineralising; Compositions therefor
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

Herstellung von Holzbeton In der Schrift "Über das Wesen, die Herstellung und Eigenschaften von Holzbeton" von Dr. K. C h a r i s i u s, Berlin-Dahlem 1949, ist der neueste Stand der Technik über Holzbeton niedergelegt.Manufacture of wood concrete In the text "About the essence, the manufacture and properties of wood concrete "by Dr. K. C h a r i s i u s, Berlin-Dahlem 1949, the latest state of the art is laid down on wood concrete.

Es ist bekannt, Sägespäne und Sägemehl zu mineralisieren, da der Zementleim mit den Holzabfällen ohne weiteres keine ausreichende Oberflächenbindung eingeht. Bisher wurden dazu sechs verschiedene Mineralisierungsstoffe verwendet: i. Kalkmilch, 2. Zementleim, 3. Wasserglas, 4. Magnesiumfluat, 5. Calciumchlorid, 6. inerte Kolloidstoffe, wie Ton, Bentonit usw. Die Holzabfälle wurden mit diesen mineralischen Aufschlämmungen getränkt. Ein Nachteil dieser 1Vrineralisierungen ist, daß die Holzfaser ihre Elastizität merklich einbüßt, da die Zellen und Markstrahlen sich jeweils mit dem entsprechenden, gegebenenfalls sogar erhärtenden oder kieselsäureausscheidenden Stoff ausfüllen.It is known to mineralize sawdust and sawdust, as cement paste does does not readily form a sufficient surface bond with the wood waste. So far, six different mineralizers have been used: i. Milk of lime, 2. Cement paste, 3. Water glass, 4. Magnesium fluate, 5. Calcium chloride, 6. Inert colloids, like clay, bentonite etc. The wood waste was made with these mineral slurries soaked. A disadvantage of these mineralizations is that the wood fibers lose their elasticity noticeably loses, since the cells and medullary rays each with the corresponding, if necessary, even fill in hardening or silica-separating substance.

Die vorliegende Erfindung fa$t die Präparierung der Holzabfälle ganz anders an, indem der störende Harzgehalt des Holzes chemisch umgesetzt wird und man dazu Stoffe verwendet, welche bei der späteren Verbindung mit Zement eine festigkeitssteigernde Wirkung ausüben.The present invention fully complies with the preparation of the wood waste different, in that the disruptive resin content of the wood is chemically converted and for this purpose, substances are used which, when later combined with cement, have a strength-increasing effect Have an effect.

Es hat sich nämlich erwiesen, daß die Mineralisierung mit Kalkmilch auf den Abbinde- und Erliärtungsvorgang des Holzzements verzögernd einwirkt (Dr. C h a r i s i u s).It has been shown that the mineralization with milk of lime has a retarding effect on the setting and hardening process of the wood cement (Dr. C h a r i s i u s).

Bei dem Verfahren .nach der Erfindung bleibt die Holzfaser völlig elastisch. Die chemische Umsetzung ist kenntlich an der Verfärbung des Holzes, welches zuerst dunkelbraun und dann rotgelb wird. Man benetzt in einer Mischtrommel i cbm Sägemehl mit 30 1 einer wässerigen Lösung, welche auf ioo kg Sägemehl umgerechnet 6 % Weißkalk, 3,5 °/oo Na Cl und i %o Ca O C12 enthält. Außerdem werden zur besseren Benetzung 3 %o Netzmittel, auf die Kalkmilch gerechnet, beigegeben.In the method. According to the invention, the wood fiber remains completely elastic. The chemical reaction can be identified by the discoloration of the wood, which first dark brown and then reddish yellow. It is wetted in a mixing drum i cbm Sawdust with 30 l of an aqueous solution, which on 100 kg of sawdust Contains the equivalent of 6% white lime, 3.5% Na Cl and 1% Ca O C12. Also be for better wetting, 3% o wetting agent, calculated on the milk of lime, added.

Na Cl und Ca O Cl. wirken katalytisch., " Letzteres beschleunigt bei der späteren Zugabe von Zement die Hydratierung und verursacht Festigkeitserhöhung.Na Cl and Ca O Cl. act catalytically., "The latter accelerates the later addition of cement causes hydration and increased strength.

In gleich günstiger Weise wird das Sägemehl Präpariert mit Meerschlick. Meerschlick ist ein irreversibler Kolloidstoff, der; einmal zur Verfestigung gekommen, auch stabil bleibt und nicht mehr, wie z. B. Ton oder Bentonit; unter Wässer= aufnahme wieder aufquellen kann.The sawdust is prepared with sea silt in the same way. Sea mud is an irreversible colloid substance that; once solidified also remains stable and no longer, such as. B. clay or bentonite; under water = absorption can swell again.

Der Meerschlick, der in großen Mengen gewonnen werden kann; besteht zu 55 bis 6o % aus Kieselsäure, zu 12 % aus Tonerde und zu 8 % aus organischen Substanzen, dann aus Beimischungen von Calciumoxyd-, Eisen-, Kohlensäure-, Magnesiumoxyd-, Titan-, Natrium-, Chlor-, Schwefelsäure- und anderen Verbindungen.The sea silt, which can be extracted in large quantities; consists 55 to 60% silica, 12% alumina and 8% organic substances, then from admixtures of calcium oxide, iron, carbonic acid, magnesium oxide, titanium, Sodium, chlorine, sulfuric acid and other compounds.

Diese Bestandteile des Meerschlicks liegen in einer kolloiddi.spersen Form vor, die durch Austrocknen an der Luft zerfällt, wodurch die sauerstoffarmen Kieselsäureverbindungen frei und chemisch wirksam werden.These components of the sea mud are in a colloidal sperm Form that disintegrates by drying out in the air, making the oxygen-poor Silicic acid compounds become free and chemically effective.

Da Meerschlick aus organischen Kieselsäureverbindungen besteht; handelt es sich hier nach Ansicht maßgebender Kolloidchemiker um natürliche Silicone mit deren wertvollen Eigenschaften. Auch künstliche Silicone können als Zusatz verwendet werden.Since sea silt consists of organic silicic acid compounds; acts According to authoritative colloid chemists, these are natural silicones their valuable properties. Artificial silicones can also be used as additives will.

Da das mit Meerschlick getränkte Sägemehl nach der Behandlung nicht völlig getrocknet wird, gehen erst beim Auftrocknen und Abbinden mit Zement die aktiven Kieselsäureverbindungen des Meerschlicks mit dem Calcium unlösliche Verbindungen ein, wodurch hydraulisch abbindende Massen entstehen, die nicht mehr schwinden und quellen, die nicht spröde sind und nicht altern, und die wasserdicht sind.Since the sawdust soaked with sea silt after the treatment does not is completely dried, they only work when they are dried up and set with cement active silicic acid compounds of sea silt with calcium insoluble compounds a, which creates hydraulically setting masses that no longer shrink and springs that are not brittle and that do not age, and that are waterproof.

Das so präparierte Sägemehl wird in üblicher Weise mit Zement, Sorelzement, Wasserglas oder Gips eingebunden; auch wird zur Entsprödung als Anmachewasser eine verdünnte wässerige, stabile bituminöse und/oder Wachs- und/oder Harz-und/oder Kunstharz- und/oder Dispersion aus gehärtetem Öl und/oder Meerschlick verwendet in solcher Verdünnung, daß keine bituminöse oder ähnliche Verkittung der Zuschläge entsteht. Diese Stoffe entspröden die hydraulischen und anderen Bindemittel, indem sie Millionen hauchdünner Gleitflächen oder Gelenke oder Fugen in der Betonmasse erzeugen und die hydraulische Bindung hydrophob, also wasserabweisend machen.The sawdust prepared in this way is usually mixed with cement, Sorel cement, Water glass or plaster incorporated; also a dilute aqueous, stable bituminous and / or wax and / or resin and / or synthetic resin and / or dispersion of hardened oil and / or sea silt used in such Thinning so that there is no bituminous or similar cementing of the aggregates. These substances de-brittle the hydraulic and other binders by making millions create wafer-thin sliding surfaces or joints or joints in the concrete mass and make the hydraulic bond hydrophobic, i.e. water-repellent.

Ein Holzbeton nach .der Erfindung hatte z. B. ohne Zusatz von Mineralstoffen im Mischungsverhältnis i Raumteil Zement zu 1,5 Raumteilen präpariertem Sägemehl eine Druckfestigkeit von 5oo kg/qcm und eine Eindruckfestigkeit von 6 kg/qmm sowie eine Abnutzbarkeit durch Schleifen nach DIN 52 io8 von nur 7,4 ccm / 5o qcm.A wood concrete according to the invention had z. B. without the addition of minerals in a mixing ratio of 1 part by volume of cement to 1.5 parts by volume of prepared sawdust a compressive strength of 5oo kg / qcm and an indentation strength of 6 kg / qmm as well a wearability by grinding according to DIN 52 io8 of only 7.4 ccm / 5o qcm.

Nach dem Verfahren der vorliegenden Erfindung ist es erstmalig gelungen, einen Holzbeton mit großen Festigkeiten herzustellen, der mit seinen vorzüglichen Eigenschaften nicht nur als Holzestrich, sondern insbesondere als Holzputz für Innen- und Außenwände von Bauwerken geeignet ist.According to the method of the present invention, it has been possible for the first time to produce a wood concrete with great strength, which with its excellent Properties not only as a wood screed, but especially as a wood plaster for interior and exterior walls of buildings is suitable.

Claims (2)

PATENTANSPROCHE: i. Verfahren zur Herstellung von Holzbeton, dadurch gekennzeichnet, daß man Sägespäne und Sägemehl mit einer Dispersion aus Weißkalk, Kochsalz, Chlorkalk, Netzmittel und/oder Meerschlick behandelt, an der Luft abtrocknen läßt und mit Zement, Zement und Kalk, Sorelzement, Wasserglas oder Gips einbindet. PATENT CLAIM: i. Process for the production of wood concrete, thereby characterized in that sawdust and sawdust are mixed with a dispersion of white lime, Treated with table salt, chlorinated lime, wetting agent and / or sea silt, air dry and binds with cement, cement and lime, Sorel cement, water glass or plaster of paris. 2. Verfahren nach Anspruch i, dadurch ,gekennzeichnet, daß man als Betonanmachewasser eine verdünnte stabile Dispersion aus Bitumen und/oder Teer und/oder Wachs und/oder Harz und/oder Kunstharz und/oder gehärteten Ölen und/oder natürlichen oder künstlichen Siliconen verwendet in so geringer Menge, daß keine bituminöse oder entsprechende Verkittung entsteht.2. The method according to claim i, characterized in that there is used as concrete making water a dilute stable dispersion of bitumen and / or tar and / or wax and / or Resin and / or synthetic resin and / or hardened oils and / or natural or artificial Silicones used in such a small amount that no bituminous or equivalent Putty is created.
DEK1460A 1950-01-24 1950-01-24 Manufacture of wood concrete Expired DE808690C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK1460A DE808690C (en) 1950-01-24 1950-01-24 Manufacture of wood concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK1460A DE808690C (en) 1950-01-24 1950-01-24 Manufacture of wood concrete

Publications (1)

Publication Number Publication Date
DE808690C true DE808690C (en) 1951-07-19

Family

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Family Applications (1)

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DEK1460A Expired DE808690C (en) 1950-01-24 1950-01-24 Manufacture of wood concrete

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DE (1) DE808690C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061690B (en) * 1956-07-14 1959-07-16 Karl Reinhardt Process for the production of screed or panel mass from brick core and sawdust with cement and synthetic resin bond
DE1696395B1 (en) * 1963-03-14 1970-08-20 Durisol Ag Method and device for processing vegetable fiber material containing cement poisons
FR2377880A1 (en) * 1977-01-19 1978-08-18 Mary Albert Concrete incorporating wood chip and dust fillers - for low cost density reduction and insulation enhancement
FR2552755A2 (en) * 1977-01-19 1985-04-05 Mary Albert Improvement to insulating lightweight concrete, to processes for its preparation and to the products obtained with the aid of this concrete.
EP0139791A1 (en) * 1983-09-06 1985-05-08 Bryce B. Wilde Building material and method of manufacturing same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061690B (en) * 1956-07-14 1959-07-16 Karl Reinhardt Process for the production of screed or panel mass from brick core and sawdust with cement and synthetic resin bond
DE1696395B1 (en) * 1963-03-14 1970-08-20 Durisol Ag Method and device for processing vegetable fiber material containing cement poisons
FR2377880A1 (en) * 1977-01-19 1978-08-18 Mary Albert Concrete incorporating wood chip and dust fillers - for low cost density reduction and insulation enhancement
FR2552755A2 (en) * 1977-01-19 1985-04-05 Mary Albert Improvement to insulating lightweight concrete, to processes for its preparation and to the products obtained with the aid of this concrete.
EP0139791A1 (en) * 1983-09-06 1985-05-08 Bryce B. Wilde Building material and method of manufacturing same

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