DE513279C - Process for the production of a porous building material - Google Patents

Process for the production of a porous building material

Info

Publication number
DE513279C
DE513279C DER72204D DER0072204D DE513279C DE 513279 C DE513279 C DE 513279C DE R72204 D DER72204 D DE R72204D DE R0072204 D DER0072204 D DE R0072204D DE 513279 C DE513279 C DE 513279C
Authority
DE
Germany
Prior art keywords
production
building material
porous building
metal
gas evolution
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
DER72204D
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.)
Georg O Richter & Schaedel
Original Assignee
Georg O Richter & Schaedel
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 Georg O Richter & Schaedel filed Critical Georg O Richter & Schaedel
Priority to DER72204D priority Critical patent/DE513279C/en
Application granted granted Critical
Publication of DE513279C publication Critical patent/DE513279C/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
    • C04B22/00Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/02Elements
    • C04B22/04Metals, e.g. aluminium used as blowing agent
    • 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
    • C04B28/02Compositions 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
    • 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)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Description

Verfahren zur Herstellung eines porösen Baustoffs Es sind bereits verschiedene Verfahren zur Herstellung poröser Baustoffe bekannt geworden, darunter auch solche, bei denen die zur Erzeugung der Porosität des Baustoffes erforderliche Gasentwicklung durch Aluminiumpulver geschieht, welches bei Gegenwart von Wasser Gas aus dem Zement entwickelt. Hierzu ist eine gewisse Dünnflüssigkeit des Gemisches nötig, so daß die spezifischen Gewichte der einzelnen :Materialien wegen der Gefahr der Entmischung fast gleich sein müssen. Die Anwendung von Sand, einem spezifisch schweren Streckungsmittel, das als Träger hervorragender Festigkeitseigenschaften für Beton bekannt ist, bietet daher besondere Schwierigkeiten.Process for the production of a porous building material There are already various processes for the production of porous building materials have become known, including including those in which the porosity of the building material is necessary Gas evolution occurs through aluminum powder, which occurs in the presence of water Gas evolved from the cement. For this purpose, there is a certain degree of fluidity in the mixture necessary so that the specific weights of each: materials because of the danger must be almost equal to the segregation. The application of sand, one specific heavy extender that acts as a carrier with excellent strength properties is known for concrete, therefore presents particular difficulties.

Die vorliegende Erfindung bringt nun im wesentlichen den Vorteil, daß die Menge des Wasserzusatzes so eingeschränkt werden kann, daß auch Stoffe von spezifisch höherem Gewicht, wie z. B. Sand, nicht zu Boden sinken. Zu diesem Zwecke wird gemäß der Erfindung für die Gasentwicklung aktiviertes Metall verwendet. Die :Mengenverhältnisse der einzelnen Bestandteile des Betons können so gewählt werden, daß er abbindet, wenn die Gasentwicklung ihren Höhepunkt erreicht hat. Die Aktivierung des ':Metalls wird in üblicher Weise vorgenommen, z. B. durch Erhitzung mit Quecksilberchlorid. Es ist bekannt, daß ein so behandeltes Metall, z. B. Aluminium, sich mit Wasser viel leichter zersetzt als reines Metall.The present invention now essentially has the advantage that the amount of water added can be limited so that substances of specifically higher weight, such as B. Sand, do not sink to the bottom. To this end activated metal is used according to the invention for gas evolution. the : The proportions of the individual components of the concrete can be selected in such a way that that it sets when the gas evolution has reached its peak. Activation des': metal is made in the usual way, e.g. B. by heating with mercury chloride. It is known that a metal so treated, e.g. B. aluminum, get in contact with water decomposed much more easily than pure metal.

Durch das neue Verfahren wird es möglich, die Masse strengflüssiger zu verarbeiten, Zuschlagstoffe aller Art ohne Rücksicht auf ihr spezifisches Gewicht, auch solche ohne Hydraulisierungseigenschaften, zu verwenden, den Metallverbrauch entsprechend niedriger zu halten und ein so geringes Raumgewicht des Endproduktes zu erreichen, wie es bisher nicht möglich war.The new process makes it possible to make the mass more stringent to process, aggregates of all kinds regardless of their specific weight, even those without hydraulic properties, to use the metal consumption to keep it correspondingly lower and such a low density of the end product to achieve in a way that was previously not possible.

Das neue Verfahren bietet daher große wirtschaftliche Vorteile, zumal die zu verwendenden Ausgangsmaterialien überall billig zu haben sind und der Verbrauch an teuren Chemikalien stark eingeschränkt ist; es kommt sogar die Verwendung von für manche Industriezweige lästigen Abfallstoffen in Frage.The new process therefore offers great economic advantages, especially the raw materials to be used are cheap everywhere and the consumption is severely limited in expensive chemicals; there is even the use of for some branches of industry annoying waste materials in question.

Das Verfahren kann beispielsweise folgendermaßen ausgeführt werden: Es werden Zement, die Zuschlagstoffe und aktiviertes Aluminium trocken gemischt; dann wird die Masse mit einer geringen Menge Wasser angemacht, worauf die Gasentwicklung beginnt und die Masse aufgeht. Die Mengenverhältnisse sind dabei so zu wählen, daß der Zement (nach etwa 45 Minuten) abbindet, wenn die Gasentwicklung den Höhepunkt erreicht hat.The method can be carried out, for example, as follows: Cement, aggregates and activated aluminum are dry mixed; then the mass is mixed with a small amount of water, whereupon gas is generated begins and the crowd rises. The proportions are to be chosen so that the cement sets (after about 45 minutes) when the gas evolution peaks has reached.

Als Zuschlagstoffe kommen z. B. Asche aus Staubfeuerungen (Flugasche), Sand u. a. m. in Betracht, also Streckungsmittel ohne hydraulische Eigenschaften.As additives come z. B. Ash from dust firings (fly ash), Sand and others m. into consideration, i.e. extenders without hydraulic properties.

Auf z cbm Fertigmaterial wird weniger als Z kg Aluminiumpulver gerechnet.Less than Z kg of aluminum powder is calculated on z cbm of finished material.

Das Fertigmaterial ist eine homogene Masse, die sich putzen und schleifen läßt; sie zeichnet sich durch hochgradige Porosität und erhöhte The finished material is a homogeneous mass that can be cleaned and sanded; it is characterized by high porosity and increased

DER72204D 1927-09-03 1927-09-03 Process for the production of a porous building material Expired DE513279C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER72204D DE513279C (en) 1927-09-03 1927-09-03 Process for the production of a porous building material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER72204D DE513279C (en) 1927-09-03 1927-09-03 Process for the production of a porous building material

Publications (1)

Publication Number Publication Date
DE513279C true DE513279C (en) 1930-11-25

Family

ID=7414317

Family Applications (1)

Application Number Title Priority Date Filing Date
DER72204D Expired DE513279C (en) 1927-09-03 1927-09-03 Process for the production of a porous building material

Country Status (1)

Country Link
DE (1) DE513279C (en)

Cited By (1)

* 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

Cited By (1)

* 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

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