DE1161806B - Process for the production of hydraulically set lightweight bricks with good thermal insulation and high fire resistance - Google Patents

Process for the production of hydraulically set lightweight bricks with good thermal insulation and high fire resistance

Info

Publication number
DE1161806B
DE1161806B DED30703A DED0030703A DE1161806B DE 1161806 B DE1161806 B DE 1161806B DE D30703 A DED30703 A DE D30703A DE D0030703 A DED0030703 A DE D0030703A DE 1161806 B DE1161806 B DE 1161806B
Authority
DE
Germany
Prior art keywords
production
thermal insulation
good thermal
fire resistance
high fire
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.)
Pending
Application number
DED30703A
Other languages
German (de)
Inventor
Dr Friedrich Bischoff
Dr Josef Wuhrer
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.)
Dolomitwerke GmbH
Original Assignee
Dolomitwerke GmbH
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 Dolomitwerke GmbH filed Critical Dolomitwerke GmbH
Priority to DED30703A priority Critical patent/DE1161806B/en
Publication of DE1161806B publication Critical patent/DE1161806B/en
Pending 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
    • C04B2/00Lime, magnesia or dolomite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Description

Verfahren zur Herstellung hydraulisch abgebundener Leichtsteine mit guter Wärmedämmung und hoher Feuerbeständigkeit Zu den Leichtbaustoffen gehören der Gas- und der Schaumbeton. Beide werden aus breiig angemachtem Zementmörtel hergestellt, der größere Gehalte .an Zuschlagstoffen, wie Sand, feinkörnige Schlacke, Traß, Puzzolanerde, Flugasche u. ä., enthält. Durch Zumischen geringer Mengen gasbildender Stoffe, wie Aluminium-, Magnesium- oder Kalziumkarbidpulver, oder durch Zugabe von Mitteln, die bei lebhaftem Mischen feinporigen Schaum erzeugen, werden Gas-bzw. Luftporen indem Zementmörtel erzeugt. Dessen Konsistenz soll so sein, daß er die Poren festhält und, in Form gegossen, kein Wasser abscheidet. Die hydraulische Erhärtung des porigen Zementmörtels kann bei normaler Temperatur erfolgen. Die Gußform kann die endgültige Größe des Bauelementes haben; es können aber auch größere Blöcke hergestellt werden, die durch Schneiden nach dem Ansteifen oder durch Sägen nadh ausreichender hydraulischer Erhärtung in die gewünschten Formate gebracht werden.Process for the production of hydraulically set lightweight bricks with good thermal insulation and high fire resistance the aerated and foam concrete. Both are made from pulpy cement mortar, the greater content of aggregates, such as sand, fine-grained slag, trass, pozzolana, Contains fly ash and the like. By adding small amounts of gas-forming substances, such as Aluminum, magnesium or calcium carbide powder, or by adding agents, which produce fine-pored foam with vigorous mixing, are gas or. Air pores by producing cement mortar. Its consistency should be such that it holds the pores firmly and, when poured into shape, does not separate any water. The hydraulic hardening of the porous Cement mortar can be done at normal temperature. The mold can be the final one The size of the component; but larger blocks can also be produced, which by cutting after stiffening or by sawing nadh sufficient hydraulic Hardening can be brought into the desired formats.

Die so erzeugten porösen Leichtbaustoffe haben ausreichende Festigkeiten, niedere Raumgewichte, gute Wärmedämmung und auch eine für übliche Bauausführungen ausreichende Hitzebeständigkeit. Sie erweichen zwischen 1000 und 1300° C.The porous lightweight building materials produced in this way have sufficient strengths low density, good thermal insulation and also one for common building designs sufficient heat resistance. They soften between 1000 and 1300 ° C.

Nun gibt es aber z. B. bei Industriebauten auch Wandkonstruktionen, die eine höhere Hitzebeständigkeit der wärmeisolierenden Bauelemente voraussetzen. Durch vorliegende Erfindung ist es möglich, Leichtbaustoffe zu erhalten, die solchen Anforderungen gerecht werden. Die Herstellung selbst erfolgt in gleicher Weise wie bei Gas- oder Schaumbeton. Erfindungsgemäß wird als hydraulisches Bindemittel stabilisierter, hydraulischer Dolomitklinker verwendet, in dem bekanntlich das Ca0 im wesentlichen als Trikalziumsilikat, eventuell in Mischung mit Dikalziumsilikat, gebunden ist, während das Mg0 chemisch nicht abgesättigt wurde. Von den bekannten Stabilisierungsmitteln wird in erster Linie SiO2, eventuell auch unter Zusatz von Cr203 oder Zr02 verwendet. Ein Teil des Ca0 wird auch durch die aus den Rohstoffen stammenden Beimengungen A1203 und Fe203 gebunden, andererseits können noch geringe Mengen an freiem Ca0 vorhanden sein, die aber unschädlich sind, solange die Raumbeständigkeit gewährleistet ist.But now there are z. B. for industrial buildings also wall constructions, which require a higher heat resistance of the thermally insulating components. By the present invention, it is possible to obtain lightweight building materials such To fit in requirements. The production itself takes place in the same way as with aerated or foam concrete. According to the invention, the hydraulic binder is stabilized, hydraulic dolomite clinker used, in which, as is known, the Ca0 essentially bound as tricalcium silicate, possibly in a mixture with dipicalcium silicate, while the Mg0 was not chemically saturated. Of the known stabilizers SiO2 is primarily used, possibly with the addition of Cr203 or Zr02. Part of the Ca0 is also produced by the additions from the raw materials A1203 and Fe203 bound, on the other hand small amounts of free Ca0 be present, but they are harmless as long as the spatial stability is guaranteed is.

Der Dolomitklinker wird wie Portlandzement vermahlen, wobei jedoch die Zugabe von Gips zur Regulierung des Abbindens nicht erforderlich ist. Das so erzeugte 'hydraulische Bindemittel wird dann zu Gas- oder Schaumbeton verarbeitet. Allerdings dürfen dabei die bei der bekannten Herstellung von Schaumbeton benutzten Zuschläge, wie Sand, Schlacke, Traß, Puzzolanerde, Flugasche usw., nicht verwendet werden, damit keine Beeinträchtigung der Hitzebeständigkeit eintritt. Jedoch können Zusätze von porösem Dolomit oder Magnesit od. dgl., deren Menge durch die gewünschte Festigkeit und Porösität des Produktes begrenzt ist, zugegeben werden.The dolomite clinker is ground like Portland cement, however the addition of plaster of paris to regulate the setting is not required. That so The hydraulic binding agent produced is then processed into aerated or foam concrete. However, the ones used in the known production of foam concrete are allowed to do so Aggregates such as sand, slag, trass, pozzolana, fly ash, etc. are not used so that the heat resistance is not impaired. However, you can Additions of porous dolomite or magnesite or the like, the amount of which depends on the desired Strength and porosity of the product is limited, must be added.

Auf diese Weise entstehen Baustoffe, die im trockenen Zustand ein Raumgewicht bis herab zu 0,4 kg/1 und dabei Festigkeiten von 20 bis 30 kg/cm2 besitzen. Die Wärmeleitzahl liegt unter 0,2 kcal/m'h °C, und der Erweichungspunkt ist oberhalb 1500° C.In this way, building materials are created that can be used in a dry state Volume weight down to 0.4 kg / l and strengths of 20 to 30 kg / cm2. The coefficient of thermal conductivity is below 0.2 kcal / m'h ° C, and the softening point is above 1500 ° C.

Claims (2)

Patentansprüche: 1. Verfahren zur Herstellung eines basischen Leichtsteines mit guter Wärmedämmung und hoher Feuerbeständigkeit unter Anwendung der an sich bekannten Maßnahmen, ein hydraulisches Bindemittel zu verwenden, mit Wasser anzumachen und porenbildende Stoffe, wie Aluminium- oder Magnesiumpulver, oder schaumbildende Stoffe, wie Harzseifen, zuzusetzen und hydraulisch zu erhärten, d a d ü r c h g e k e n n -z e i c h n e t, daß stabilisierter, hydraulischer Dolomit verwendet wird, der durch Sintern mit Si02 eventuell auch unter Zusatz von Cr203 oder Zr02 hergestellt wurde. Claims: 1. Process for the production of a basic lightweight brick with good thermal insulation and high fire resistance using the per se known measures to use a hydraulic binder to make with water and pore-forming substances, such as aluminum or magnesium powder, or foam-forming substances Adding substances such as resin soaps and hardening them hydraulically, d u r c h g e k e n n -z e i c h n e t that stabilized, hydraulic dolomite is used which by sintering with Si02 possibly also with the addition of Cr203 or Zr02 was produced. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß Zusätze von porösem Dolomit oder Magnesit u. dgl. verwendet werden. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 474 021.2. The method according to claim 1, characterized in that additives porous dolomite or magnesite and the like can be used. Considered Publications: German Patent No. 474 021.
DED30703A 1959-05-20 1959-05-20 Process for the production of hydraulically set lightweight bricks with good thermal insulation and high fire resistance Pending DE1161806B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED30703A DE1161806B (en) 1959-05-20 1959-05-20 Process for the production of hydraulically set lightweight bricks with good thermal insulation and high fire resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED30703A DE1161806B (en) 1959-05-20 1959-05-20 Process for the production of hydraulically set lightweight bricks with good thermal insulation and high fire resistance

Publications (1)

Publication Number Publication Date
DE1161806B true DE1161806B (en) 1964-01-23

Family

ID=7040606

Family Applications (1)

Application Number Title Priority Date Filing Date
DED30703A Pending DE1161806B (en) 1959-05-20 1959-05-20 Process for the production of hydraulically set lightweight bricks with good thermal insulation and high fire resistance

Country Status (1)

Country Link
DE (1) DE1161806B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE474021C (en) * 1926-11-26 1929-03-27 Ivar Setterberg Process for the production of porous refractory moldings using substances that evolve gases by chemical means

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE474021C (en) * 1926-11-26 1929-03-27 Ivar Setterberg Process for the production of porous refractory moldings using substances that evolve gases by chemical means

Similar Documents

Publication Publication Date Title
EP0071897B1 (en) Light-weight building material and method for its production
EP2462075B1 (en) Composition for a light-weight refractory brick having a high anorthite percentage
EP0179775A1 (en) Light ceramic material for building, method to manufacture such material and utilization thereof.
EP0990628B1 (en) Lightweight masonry mortar
EP3442927B1 (en) Method for producing aerated concrete moulded bodies
DE2221678A1 (en) Cement insulating material - contg lightweight filler
DE202007002982U1 (en) brick
DE1161806B (en) Process for the production of hydraulically set lightweight bricks with good thermal insulation and high fire resistance
DE3722242C1 (en) Process for the production of ceramic products
DE202005014693U1 (en) Porous concrete, e.g. for lightweight ceilings, walls and facings, comprises binder, water, aggregate and an additive containing a blowing agent and a foaming agent
AT515368A1 (en) Mineral formulation
DE2339139B2 (en) Ceramic insulating stones
CH642037A5 (en) Refractory ceramic insulation bricks and a process for their production
DE673375C (en) Process for the production of lightweight concrete
EP0365022B1 (en) Process for the production of artificial stones
DE19548952C2 (en) Lightweight masonry mortar
DE2161242C2 (en) Process for the manufacture of light ceramic products
DE1271679B (en) Process for the production of porous granules
DE2137943A1 (en) Lightweight concrete - contg styropor-mull(waste) particles coated with hydraulic lime as binder
DE1646512B2 (en) MOLDING DIMENSIONS WITH REDUCED VOLUME
AT378174B (en) HEAT AND / OR SOUND INSULATING MATERIAL AND METHOD FOR THE PRODUCTION THEREOF
AT355978B (en) LIGHTWEIGHT CONCRETE
DE2626041B2 (en) Process for producing a concrete or mortar
DE873069C (en) Process for the production of thermally resistant, non-shrinking thermal insulation compound
AT372062B (en) FIRE-RESISTANT CERAMIC INSULATION STONES