DE469864C - Process for the production of porous masses from hardenable mineral substances - Google Patents

Process for the production of porous masses from hardenable mineral substances

Info

Publication number
DE469864C
DE469864C DEM100155D DEM0100155D DE469864C DE 469864 C DE469864 C DE 469864C DE M100155 D DEM100155 D DE M100155D DE M0100155 D DEM0100155 D DE M0100155D DE 469864 C DE469864 C DE 469864C
Authority
DE
Germany
Prior art keywords
calcium
production
mineral substances
porous masses
metals
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
DEM100155D
Other languages
German (de)
Inventor
Julius Meyer
Emil Asmus
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.)
JULIUS MEYER DR
Original Assignee
JULIUS MEYER DR
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 JULIUS MEYER DR filed Critical JULIUS MEYER DR
Priority to DEM100155D priority Critical patent/DE469864C/en
Priority to BE351804A priority patent/BE351804A/en
Priority to FR658299D priority patent/FR658299A/en
Application granted granted Critical
Publication of DE469864C publication Critical patent/DE469864C/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

Landscapes

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

Description

Verfahren zur Herstellung poröser massen aus abbindefähigen mineralischen Stoffen Es ist bereits eine Anzahl Verfahren zur Herstellung poröser Massen aus abbinclefähiyen mineralischen Stoffen unter Verwendung hei Gegenwart von Wasser gasentwickelnder .letalle bekannt geworden.Process for the production of porous masses from hardenable mineral Substances There are already a number of processes for the production of porous masses from abbincleable mineral substances using in the presence of water gas-evolving metals have become known.

Die bisher für diesen Zweck in Vorschlag gebrachten Metalle weisen jedoch verschiei Afingel auf, die sie für die praktische e -le fi Verwendung ungeeignet erscheinen lassen. .3o müssen von vornherein alle 'Metalle, wie Zink, Magnesium, Eisen usw., ausscheiden, <lie nur bei erhöhter Temperatur zur '\Virkung kommen oder bei gewöhnlicher Temperatur das Gas nur in Gegenwart von Alkali oder gewissen Chloriden, wie Calciumchlorid; omtwicke ln, gleichgültig, ob hierbei als alkali-#clier Stola der im Zement enthaltene Kalk dient oder aber ob der abbindefähigen Masse :iocli be.ondere alkalische Stoffe zugesetzt werden. Es treten hierbei Veränderungen der ßeIandteile des Zements ein, die eine Schädigun, desselben herbeiführen.The metals previously proposed for this purpose show however, various Afingels make them unsuitable for practical use appear. .3o all 'metals such as zinc, magnesium, Iron, etc., can be eliminated only at elevated temperatures or at ordinary temperature the gas only in the presence of alkali or certain Chlorides such as calcium chloride; omtwicke ln, irrespective of whether this is an alkaline #clier Stole the lime contained in the cement is used or whether the mass that can be set : iocli special alkaline substances are added. Changes occur here the parts of the cement which cause damage to it.

.lluminiuin, welches pulverförmig in feinster Verteilung Wasser bei gewöhnlicher Temperatur zersetzt und mehrfach zur Herstellung von 7ellenbeton empfohlen wurde. könnte als ein hierfür geeignetes Metall angesehen werden. Leider hat es die unangenehme :?igenscliaft, sich bei Anwesenheit gewisser Stoffe, beispielsweise der geringsten Spuren von kieselsauren Alkalisalzen, wie sie im 7L-inent uiclit selten vorhanden sind, mit einer >chützenden Schicht zu überziehen, die den weiteren Angriff des Wassers verhindert. Man ist deshalb auch bei Verwendung von Aluminium gezwungen, um eine solche Passivierung desselben zu verhüten, der Masse Alkalien, gewisse Salze o. dgl., zuzusetzen, die jedoch, wie bereits ausgeführt wurde, die Eigenschaft des Zements ungünstig beeinflussen..lluminiuin, which in powder form and finely divided into water decomposed at ordinary temperature and recommended several times for the production of concrete became. could be considered a suitable metal for this. Unfortunately it did the unpleasant one: the slightest traces of silicic acid alkali salts, such as those found in the 7L-inent are seldom present, to be covered with a> protective layer that protects the other Prevents water attack. You are therefore also using aluminum compelled to prevent such a passivation of the same, the mass of alkalis, To add certain salts or the like, which, however, as already stated, the Adversely affect the property of the cement.

Als weitere in Frage kommende Metalle sind auch druckschriftlich bereits Barium und Calcium erwähnt worden. Beide Metalle reagieren schon bei gewöhnlicher Temperatur mit Wasser allein. Das Barium scheidet jedoch schon wegen seines hohen Preises aus und ist im übrigen, wie auch das Calcium, bei gewöhnlicher Temperatur so duktil und weich, daß es nur in Form gröberer Späne zur Anwendung kommen kann, dagegen sich nicht zur genügenden Feinheit pulverisieren läßt. Hierdurch ist eine gute gleichmäßige und innige Verteilung des Metalls in der Masse nicht möglich.Other metals that come into question are also already in print Barium and calcium have been mentioned. Both metals react with ordinary ones Temperature with water alone. However, the barium separates because of its high level Price and is, like calcium, at ordinary temperature so ductile and soft that it can only be used in the form of coarser chips, on the other hand, cannot be pulverized to a sufficient degree of fineness. This is a good even and intimate distribution of the metal in the mass is not possible.

An sich erscheint das Calcium rein theoretisch als ideales Treibmittel, da die geringe, bei seiner OYvdation sich bildende Menge an Calciumhydroxyd die Eigenschaften des Zeinents in keiner Weise verändert.In itself, the calcium appears purely theoretically as an ideal propellant, since the small amount of calcium hydroxide that forms during its oxidation Properties of the Zeinent are not changed in any way.

Nach der Erfindung soll zwar auch Calcium als wesentliches Treibmittel verwendet, .jedoch sollen die angegebenen mangelhaften Eigenschaften dadurch beseitigt werden, (laß man all Stelle des reinen Calciums Legierungen desselben mit zweckmäßig gen-ählten anderen Metallen, wie Magnesium und Zink, verwendet, in denen (las Calcium in überwiegelider Menge vorhanden ist. Derartige Legierungen lassen sich leicht <auf (las feinste pulverisieren, so (iaß hierdurch ihre gleichmäßige und innige Verteilung in der Ge-.#amtinässe lceinerl(7 Schwierigkeiten bereitet. Die Dauer der Gasentwicklung kann durch Veränderung des Gerichtsverhältnisse. der Bestandteile in der Legierung und durch geeignete Wahl der Korngröße beim Pulverisieren geregelt "ve r den. Hierdurch hat man es in der Hand. die: schiidliche Zeitspanne zwischen dem Ende der Gasentwicklung und tlem Beginn der Erhärtung des Zements auf ein geeignete: 'Maß herabzudrücken und den verschieden abbindenden und erhärtenden mineralischen Stoffen anzupassen.According to the invention, calcium should also be used as an essential propellant used, .However, the specified defective properties should thereby be eliminated (Let all of the pure calcium alloys of the same be expediently other metals, such as magnesium and zinc, are used in which (read Calcium in überiegelider Amount is available. Leave such alloys easily <on (read the finest pulverize, so (hereby their uniform and intimate distribution in the community. The duration of the gas development can be changed by changing the court situation. the Components in the alloy and through a suitable choice of grain size when pulverizing regulated "ve r den. This gives you control over the: different period of time between the end of gas evolution and the beginning of the cement hardening a suitable one: 'to reduce the measure and the different setting and hardening adapt to mineral substances.

An Stelle von Calcium-Zink und Calciunl-\lagnesium kann auch das Dreimetall, Calciuni-Magnesicim-Zink @-e rwendet werden. Der Gehalt der .Legierungen an Calcium ist z@%.reckmäßig mit 70 biS 80°/(, zu bemessen.Instead of calcium-zinc and calcium-magnesium, the tri-metal, calcium-magnesium-zinc®, can also be used. The calcium content of the alloys is to be measured at 70 to 80 ° / (.

Claims (1)

PA TENT ANSPRÜCHE: r. Verfahren zur'Herstellung poröser Massen aus abbindefähigen mineralischen Stoffen unter Verwendung bei Gegenwart von Wasser gasentwickelnder Metalle, dadurch gekennzeichnet, däß als Metalle Legierungen des Calciums mit überwiegen-(lern Calciumgehalt verwendet werden. a. Verfahren nach Anspruch z, dadurch gekennzeichnet, daß als Calciumlegierungen Calcium-Zink, Calcium-Magnesium oder Calcium-Magriesium-Zink benutzt «-erden.PA TENT CLAIMS: r. Process for producing porous masses hardenable mineral substances using gas-evolving substances in the presence of water Metals, characterized in that alloys of calcium predominate as metals (learn Calcium content can be used. a. Method according to claim z, characterized in that that as calcium alloys calcium-zinc, calcium-magnesium or calcium-magnesium-zinc used «-erden.
DEM100155D 1927-06-19 1927-06-19 Process for the production of porous masses from hardenable mineral substances Expired DE469864C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEM100155D DE469864C (en) 1927-06-19 1927-06-19 Process for the production of porous masses from hardenable mineral substances
BE351804A BE351804A (en) 1927-06-19 1928-06-04 Process for the manufacture of porous masses particularly applicable as a building material by means of mineral substances capable of setting and with the use of metals which give off gases in the presence of water
FR658299D FR658299A (en) 1927-06-19 1928-06-05 Process for the manufacture of porous masses particularly applicable as a building material by means of mineral substances capable of setting and with the use of metals which give off gases in the presence of water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM100155D DE469864C (en) 1927-06-19 1927-06-19 Process for the production of porous masses from hardenable mineral substances

Publications (1)

Publication Number Publication Date
DE469864C true DE469864C (en) 1928-12-27

Family

ID=7324256

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM100155D Expired DE469864C (en) 1927-06-19 1927-06-19 Process for the production of porous masses from hardenable mineral substances

Country Status (3)

Country Link
BE (1) BE351804A (en)
DE (1) DE469864C (en)
FR (1) FR658299A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742299C (en) * 1939-08-27 1943-12-08 Chem Fab Gruenau Ag Method for setting light metals in concrete

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742299C (en) * 1939-08-27 1943-12-08 Chem Fab Gruenau Ag Method for setting light metals in concrete

Also Published As

Publication number Publication date
BE351804A (en) 1928-07-31
FR658299A (en) 1929-06-03

Similar Documents

Publication Publication Date Title
DE4436481C2 (en) Process for producing an aluminum alloy forging
DE2643091C2 (en) Non-hygroscopic phosphate-containing grain refiner for aluminum alloys with a high silicon content and process for its manufacture
DE469864C (en) Process for the production of porous masses from hardenable mineral substances
DE934017C (en) Magnesium alloys
DE68908618T2 (en) Hexafluorophosphates as structural refiners for aluminum-silicon alloys.
DE2233887A1 (en) HEATING AGENTS FOR CASTING PROCESSES
DE631751C (en) Mass for molds for the production of dental inserts or the like from precious metal or precious metal alloys
DE2250165C3 (en) Nodularizing composition for use in the manufacture of spheroidal graphite cast iron
DE1230450B (en) Exothermic mixture for alloying steel melts
DE631985C (en) Alloy for objects that must have both good workability and high heat resistance
CH523325A (en) Process for the production of cast iron with improved strength properties and better machinability
CH136864A (en) Process for the production of porous masses from hardenable, mineral substances.
DE698896C (en) Process for stabilizing molten saltpeter
DE531693C (en) Process for the production of aluminum with high electrical conductivity and great strength
DE817528C (en) Process for introducing zirconium into magnesium and magnesium alloys
DE931735C (en) Process for improving the strength properties of beryllium-containing magnesium alloys
AT156471B (en) High-percentage magnesium alloys.
AT144894B (en) Process for the production of alkaline earth metals and alloys from them.
DE1298835B (en) Process for enamelling steel and other iron substrates
DE637030C (en) Process for the production of alloys of alkaline earth metals with lead or cadmium
DE546510C (en) Procedure for working with ammonia
DE544049C (en) Process for the production of porous building materials
DE500884C (en) Process for the production of castable explosive charges
AT147459B (en) Process for the production of weatherproof phosphors.
DE880403C (en) Zinc alloy