DE1646610C3 - Process for the production of concrete-like material of high strength - Google Patents

Process for the production of concrete-like material of high strength

Info

Publication number
DE1646610C3
DE1646610C3 DE19671646610 DE1646610A DE1646610C3 DE 1646610 C3 DE1646610 C3 DE 1646610C3 DE 19671646610 DE19671646610 DE 19671646610 DE 1646610 A DE1646610 A DE 1646610A DE 1646610 C3 DE1646610 C3 DE 1646610C3
Authority
DE
Germany
Prior art keywords
mixture
concrete
production
high strength
autoclave
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
DE19671646610
Other languages
German (de)
Other versions
DE1646610A1 (en
DE1646610B2 (en
Inventor
Henri Prof. Lille Pollet (Frankreich)
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.)
INSTITUT CATHOLIQUE D' ARTS ET METIERS DE LILLE LILLE (FRANKREICH)
Original Assignee
INSTITUT CATHOLIQUE D' ARTS ET METIERS DE LILLE LILLE (FRANKREICH)
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 INSTITUT CATHOLIQUE D' ARTS ET METIERS DE LILLE LILLE (FRANKREICH) filed Critical INSTITUT CATHOLIQUE D' ARTS ET METIERS DE LILLE LILLE (FRANKREICH)
Publication of DE1646610A1 publication Critical patent/DE1646610A1/en
Publication of DE1646610B2 publication Critical patent/DE1646610B2/en
Application granted granted Critical
Publication of DE1646610C3 publication Critical patent/DE1646610C3/en
Expired legal-status Critical Current

Links

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
    • 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
    • C04B28/18—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 mixtures of the silica-lime type

Landscapes

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

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von betonartigem Material hoher Festigkeit, bei dem etwa 70" 0 fetter Lehm und 30"'» Kalk fein gemahlen und in trockenem Zustand innig vermischt werden, worauf dem Gemisch K)0O Wasser zugegeben wird und das Gemisch unter einem Druck von etwa 200 atü verdichtet und in einem Autoklav einem Druck von etwa 16 atü und einer Temperatur von etwa 200c C ausgesetzt wird. Nach diesem Verfahren hergestellte Baukörper weisen Festigkeitswerte von etwa 900 kg/cm2 auf. The invention relates to a process for the production of concrete-like material of high strength, in which about 70 "0 fat loam and 30""lime are finely ground and intimately mixed in the dry state, whereupon the mixture K) 0 0 water is added and the mixture is compressed under a pressure of about 200 atü and exposed in an autoclave to a pressure of about 16 atü and a temperature of about 200 c C. Structures produced using this process have strength values of around 900 kg / cm 2 .

Gemäß der Erfindung können Baukörper dieser Art in zweifacher Beziehung verbessert werden.According to the invention, structures of this type can be improved in two ways.

Eine Erhöhung der mechanischen Festigkeit bis zu Werten über 1500 kg'cnv1 wird dadurch erreicht, daß das Gemisch nach der Behandlung im Autoklav mehrere Stunden einer weiteren Wärmebehandlung in einem Trockenofen bei einer Temperatur von etwa 400c C unterworfen wird.An increase in mechanical strength up to values above 1500 kg'cnv 1 is achieved by subjecting the mixture to a further heat treatment in a drying oven at a temperature of about 400 ° C. for several hours after the treatment in the autoclave.

Besteht die Gefahr, daß Baukörper dieser Art auf Grund der Wärmebehandlung zu Rißbildungen neigen, was eine Folge eines zu hohen Ton-Gehaltes des fetten Lehmes sein kann, so kann diese Gefahr dadurch beseitigt werden, daß dem Gemisch vor seiner Verdichtung sehr feiner Ouarzsand, vorzugsweise in einer Menge von 10 bis 20" 0, beigegeben wird.If there is a risk that structures of this type will tend to form cracks due to the heat treatment, which can be a consequence of a too high clay content of the fatty loam, this danger can be caused by it be eliminated that the mixture before its compaction very fine Ouarzsand, preferably in an amount of 10 to 20 "0, is added.

Diese verhältnismäßig einfachen Modifikationen führen somit zu "sehr wesentlichen Verbesserungen des Baukörpers. Im Falle der zusätzlichen Wärmebehandlung ist die Verbesserung vermutlich darauf zurückzuführen, daß die während der ersten Wärmebehandlung gebildeten Calciumsilikate im Verlaufe der zusätzlichen Wärmebehandlung in Calciumsilikate mil einem niedrigeren Wassergehall und größerer Härte umgewandelt werden.These relatively simple modifications thus result in "very substantial improvements of the building. In the case of the additional heat treatment, the improvement is presumably due to that the calcium silicates formed during the first heat treatment in the course of additional heat treatment in calcium silicates with a lower water content and greater To be converted to hardness.

Claims (2)

Patentansprüche:Patent claims: 1. Verfahren zur Herstellung von betonartigem Materia! hoher Festigkeit, bei dem etwa 70 0Zo fetter Lehm und 30 °,Ό Kalk 'ein gemahlen und in trockenem Zustand innig vermischt werden, worauf dem Gemisch 10a/u Wasser zugegeben wird und das Gemisch unter .inem Druck von etwa 200 atü verdichtet und in einem Autoklav einem Druck von etwa 16 atü und einer Temperatur von etwa 200° C ausgesetzt wird, dadurch gekennzeichnet, daß das Gemisch nach der Behandlung im Autoklav mehrere Stunden einer weiteren Wärmebehandlung in einem Trockenofen bei einer Temperatur von etwa 400- C unterworfen wird.1. Process for the production of concrete-like material! high strength, in which about 70 0 Zo rich loam and 30 ° 'lime' are ground and intimately mixed in the dry state, whereupon 10 a / u water is added to the mixture and the mixture is compressed under a pressure of about 200 atm and is subjected to a pressure of about 16 atmospheres and a temperature of about 200 ° C in an autoclave, characterized in that, after the treatment in the autoclave, the mixture is subjected to a further heat treatment in a drying oven at a temperature of about 400 ° C for several hours . 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß dem Gemisch vor seiner Verdichtung sehr feiner Quarzsand, vorzugsweise in einer Menge von 10 bis 20 u Ό, beigegeben wird.2. The method according to claim 1, characterized in that very fine quartz sand, preferably in an amount of 10 to 20 u Ό, is added to the mixture before it is compacted. >5> 5
DE19671646610 1967-05-09 1967-05-22 Process for the production of concrete-like material of high strength Expired DE1646610C3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR105706A FR92458E (en) 1967-05-09 1967-05-09 High-strength material, of the concrete type and its manufacturing process

Publications (3)

Publication Number Publication Date
DE1646610A1 DE1646610A1 (en) 1971-12-23
DE1646610B2 DE1646610B2 (en) 1973-08-02
DE1646610C3 true DE1646610C3 (en) 1974-02-28

Family

ID=8630471

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671646610 Expired DE1646610C3 (en) 1967-05-09 1967-05-22 Process for the production of concrete-like material of high strength

Country Status (2)

Country Link
DE (1) DE1646610C3 (en)
FR (1) FR92458E (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972731C (en) * 1953-03-07 1959-09-17 Siemens Elektrogeraete Gmbh Cross frame antenna, especially for radio reception
JPH0638562B2 (en) * 1985-08-12 1994-05-18 日産自動車株式会社 Vehicle antenna

Also Published As

Publication number Publication date
DE1646610A1 (en) 1971-12-23
DE1646610B2 (en) 1973-08-02
FR92458E (en) 1968-11-15

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)