DD126973B1 - METHOD FOR PRODUCING SILICATE BEVERON - Google Patents
METHOD FOR PRODUCING SILICATE BEVERON Download PDFInfo
- Publication number
- DD126973B1 DD126973B1 DD75189625A DD18962575A DD126973B1 DD 126973 B1 DD126973 B1 DD 126973B1 DD 75189625 A DD75189625 A DD 75189625A DD 18962575 A DD18962575 A DD 18962575A DD 126973 B1 DD126973 B1 DD 126973B1
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- silicate concrete
- concentration
- beveron
- silicate
- quicklime
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title description 7
- 238000004519 manufacturing process Methods 0.000 title description 6
- 238000000034 method Methods 0.000 claims description 17
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000013543 active substance Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 150000001414 amino alcohols Chemical class 0.000 claims description 2
- 239000000575 pesticide Substances 0.000 claims description 2
- 150000001735 carboxylic acids Chemical class 0.000 claims 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 20
- 239000000292 calcium oxide Substances 0.000 description 10
- 235000012255 calcium oxide Nutrition 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005056 compaction Methods 0.000 description 6
- 239000006004 Quartz sand Substances 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 229930195729 fatty acid Natural products 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052925 anhydrite Inorganic materials 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000001648 tannin Substances 0.000 description 2
- 229920001864 tannin Polymers 0.000 description 2
- 235000018553 tannin Nutrition 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- -1 carboxylic acids amino alcohols Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/40—Surface-active agents, dispersants
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
О О о ОО О о О
°оо° %J βΌ,° oo ° % J β Ό,
Titel der ErfindungTitle of the invention
Verfahren zur Herstellung von Dichtem SilikatbetonProcess for the preparation of dense silicate concrete
Anwendungsgebiet der ErfindungField of application of the invention
Die Erfindung betrifft ein Verfahren zur Herstellung von Dichtem Silikatbeton für großformatige BauelementeThe invention relates to a method for producing dense silicate concrete for large-sized components
Charakteristik der bekannten technischen Lösungen Es ist bekannt, daß Massen für Dichten Silikatbeton aus 6,0 - 12,5 % Branntkalk mit einem GaO-Gehalt - 80 %Characteristic of known technical solutions It is known that masses for densities of silicate concrete consist of 6.0 to 12.5% burnt lime with a GaO content - 80%.
6,7 - 14,0 % Quarzsand gemahlen mit einem SiO2-Gehalt - 90 % 73,5 - 87,3 % Quarzsand 0 - 4 mm 13,5 - 18,0 % Wasser hergestellt merden« Anstelle des Branntkalkes kann auch die gleiche Menge Kalkhydrat eingesetzt werden» Die Mischung aller Komponenten kann entweder gleichzeitig oder in sinnvoller Reihenfolge nacheinander erfolgen.» Diese Masse wird dann in-üblicher Weise geformt, unter Vibration verdichtet und anschließer mit Wasserdampf im Autoklaven in bestimmter Weise gehärtet о Weiterhin ist folgende Zusammensetzung bekannt:6.7 - 14.0 % quartz sand ground with a SiO 2 content - 90% 73.5 - 87.3 % quartz sand 0 - 4 mm 13.5 - 18.0 % water produced merden "Instead of quicklime can also The same amount of hydrated lime can be used. "The mixture of all components can be carried out either simultaneously or in a meaningful sequence in succession." This mass is then shaped in the usual manner, compacted under vibration and then cured in a specific manner with steam in an autoclave о Furthermore, the following composition is known :
4,0 - 8,5 % Kalkhydrat 1,5 - 4,5 % Zement und/oder Branntkalk 0,5 - 2,0 % Anhydrit 6,7 - 37,5 % Quarzsand gemahlen 2^ 47,5 - 87,3 % Quarzsand 0 - 4 mm 13,0 - 18,0 % Wasser4.0 - 8.5 % hydrated lime 1.5 - 4.5% cement and / or quicklime 0.5 - 2.0% anhydrite 6.7 - 37.5% ground quartz sand 2 ^ 47.5 - 87.3 % Quartz sand 0 - 4 mm 13.0 - 18.0 % water
Der Zusätzliche Zement und/oder Branntkalk und der Anhydrit bewirken eine Verbesserung der Fließfähigkeit der Massen und binden nach der Verdichtung das vorher erforderliche Überschuß-The additional cement and / or quicklime and the anhydrite cause an improvement in the flowability of the masses and bind the previously required excess after compaction.
22.DE11933*13843222.DE11933 * 138432
о о о о с оо о о о с о о
0 3 0 0 OO 0O ОС о °0 3 0 0 OO 0 O ОС о °
wasser« Nach diesem Yerfahrensvorschlag kann die Erhöhung der Fließfähigkeit der allgemein schwer verdichtbaren Silikatbetonmassen durch die Zugabe von plastifizierenden und/ oder luftporenbildenden Zusatzmitteln erreicht werden, ohne daß mit Überschußwasser gearbeitet werden muß«. Der Zement- und/oder Branntkalkanteil sowie der Anhydrit bleiben als die Fließfähigkeit fördernder Zusatzr erhalten»According to this proposal, the increase in flowability of the generally difficultly compressible silicate concrete masses can be achieved by the addition of plasticizing and / or air-entraining additives without having to work with excess water. The cement and / or quicklime content as well as the anhydrite remain as the flowability promoting additive »
Ss ist ferner bekannt, daß hochfester Silikatbeton erhalten wird, wenn Quarzmehl mit Kalkhydrat im Gewichtsverhältnis von etwa 45 i 55 und bis zu 65% Zuschlagstoffen mit Wasser angemacht, gemischt, geformt, verdichtet und gehärtet wird·It is further known that high-strength silicate concrete is obtained when quartz powder is mixed with water, mixed, shaped, compacted and hardened with hydrated lime in a weight ratio of about 45:55 and up to 65% of aggregates.
Das Mischen und die Verdichtung der Frischbetonmasse erfolgt mit mehr als 15 Gew»-% freiem Wasser,» Das überschüssige Wasser ermöglicht eine Verdichtung ohne die Verwendung von Pressen«. Bereits bei der einfachen Vibrationsverdichtung sollen strukturfreie Preßkörper erhalten werden. Das bei der Verdichtung überschüssig austretende Wasser wird während dieses Vorganges durch saugfähige Einlagen, Siebe oder Drainagen abgeführt« Mixing and compaction of the fresh concrete mass is done with more than 15% by weight free water, "The excess water allows compaction without the use of presses". Already in the simple vibration compaction structure-free compacts are to be obtained. The surplus water during compaction is removed during this process by absorbent liners, sieves or drainage systems. «
Der Nachteil dieser bekannten Verfahren besteht darin, daß mit den bekannten Verfahren keine durchgängige Verbesserung des Herstellungsprozesses von Dichtem Silikatbeton über das gesamte Verfahren erzielt wirdo Sie führen im Herstellungsprozeß zu Disproportionen in der Beherrschung der stofflichen Prozesse, was schließlich zu Lasten des technologisch erforderlichen Zeitaufwandes, der Qualität und der Kontinuität des Verfahrens gehtoThe disadvantage of these known methods is that with the known methods no continuous improvement of the production process of dense silicate concrete over the entire process is achievedo They lead in the manufacturing process to disproportions in the control of the material processes, which ultimately at the expense of technologically required time, the Quality and continuity of the procedure goes
Ziel der ErfindungObject of the invention
Die Erfindung bezweckt die Herstellung von Dichtem Silikatbeton für großformatige Bauelemente unter Vermeidung der angeführten Nachteile, indem der industrielle Herstellungsprozeß durch die komplexe Anwendung einer Maßnahme sicherer beherrscht werden kann, den Arbeitszeitaufwand verringertThe invention aims at the production of dense silicate concrete for large-sized components while avoiding the mentioned disadvantages, by the industrial manufacturing process can be controlled by the complex application of a measure safer, reduces the amount of labor
5 sowie die Qualität verbessert·5 as well as the quality improves ·
Darlegung des Wesens der ErfindungExplanation of the essence of the invention
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung von Dichtem Silikatbeton vorzuschlagen, bei dem jede Verfahrensstufe in ihrer technischen Wirksamkeit verbes-The invention has for its object to propose a process for the preparation of dense silicate concrete, in which each process stage improved in their technical effectiveness.
sert wird. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß folgende grenzflächenaktive Substanzen eingesetzt werden: Carbonsäuren Aminoalkoholesert becomes. This object is achieved in that the following interface-active substances are used: carboxylic acids amino alcohols
'hydroxylgruppenhaltige Verbindungen und/oder synthetische Gerbstoffe,hydroxyl-containing compounds and / or synthetic tanning agents,
in einer Konzentration von 0,03 Masse-% bis 0,1 Masse-%, bezogen auf die Silikatbetontrockenmischung, zugegeben und diese Substanzen in ihrer Konzentration über das gesamte Verfahren im Peststoff aufrecht erhalten werden, wobei auch beliebige Mischungen aus zwei oder mehreren Substanzen möglich sind».in a concentration of 0.03 mass% to 0.1 mass%, based on the Silikatbetontrockenmischung, added and these substances are maintained in their concentration over the entire process in the pesticide, with any mixtures of two or more substances possible are".
Ausführungsbeispieleembodiments
Die Erfindung wird an nachstehenden Ausführungsbeispielen erläutert:The invention will be explained with reference to the following exemplary embodiments:
In Form einer tabellarischen Gegenüberstellung soll der Einsatz der grenzflächenaktiven Substanzen und/oder synthetischen Gerbstoffe bei der Mahlung von Quarzsand kleiner 3,15 mm in einer Kugelmühle sowie in der Silikatbetonmasse (Verdichtung und Härtung) gegenüber den an grenzflächenaktiven Substanzen und/oder Gerbstoffen freien Materialien gezeigt werden (angegeben als prozentuale Steigerung)»The use of surface-active substances and / or synthetic tannins in the grinding of quartz sand of less than 3.15 mm in a ball mill and in the silicate concrete mass (compaction and hardening) compared to the materials free of surface-active substances and / or tannins is shown in the form of a tabular comparison be (expressed as a percentage increase) »
5 Folgende grenzflächenaktive Substanzen und synthetische Gerbstoffe werden verwendet:5 The following surfactants and synthetic tanning agents are used:
Aus der Gruppe der Garbonsäuren ein Gemisch synthetischer Fettsäuren mit einer Kohlenwasserstoffkettenlänge von C, bis Cg, aus der Gruppe der Aminoalkohole das Triethanolamin, aus derFrom the group of the Garbonsäuren a mixture of synthetic fatty acids with a hydrocarbon chain length of C, to Cg, from the group of the amino alcohols the triethanolamine, from the
3Θ Gruppe der hydroxylgruppenhaltigen Verbindungen der Dodecylalkohol. Aus den Gerbstoffen wurde der synthetische Gerbstoff Dabrogan gewählte Die Zusatzkonzentration beträgt jeweils 0,05 Masse-%, bezogen auf die Trockensubstanz der Silikatbetonmischunge3Θ Group of hydroxyl-containing compounds of dodecyl alcohol. The synthetic tanning agent Dabrogan was selected from the tanning agents. The additional concentration is in each case 0.05% by mass, based on the dry substance of the silicate concrete mixture
О О 7 ' О О 7 '
о ос о ! о ос о !
α OqQα OqQ
Auf der Grundlage des Beispiels 1 werden die grenzflächenaktive Substanz Triethanolamin 'and der synthetische Gerbstoff Dabrogan anteilig mit einer Konzentration von jeweils 0,o3 Mass-%, bezogen auf die Trockensubstanz der Silikatbetonmischung zugegeben, 5 wobei die Verbesserung nach Beispiel 1 erreicht wird. Beim Mischen dsr Silikatbetonmasse wird mit dem Anmachwasser die gleiche Menge Dabrogan zugesetzte Die Verbesserung der Fließfähigkeit und der Druckfestigkeit (Härtung) liegt in der gleichen Höhe wie im Beispiel 1 die Werte für Dabrogan.Based on Example 1, the surfactant triethanolamine 'and the synthetic tanning agent Dabrogan are added proportionally at a concentration of 0, o3 mass%, based on the dry matter of the silicate concrete mixture, 5 wherein the improvement of Example 1 is achieved. When mixing the silicate concrete mass, the same amount of Dabrogan is added with the mixing water. The improvement in flowability and compressive strength (hardening) is the same level as in Example 1 for Dabrogan.
Branntkalk wird 0,10 % Fettsäure C, -Cr, bezogen auf den Fest- Quicklime is 0.10 % fatty acid C, -Cr, based on the solids content of
Ц. о 2 Ц. 2
stoff, zugesetzt und in einer Kugelmühle auf 6000 cm /g gemah-Bei der gleichen Probe ohne grenzflächenaktive Zusätzesubstance, added and milled in a ball mill to 6000 cm / g. For the same sample without surface-active additives
bei gleicher Mahl-dauer nur eine Oberfläche von 5100 cm /g erhalten«with the same grinding time only a surface of 5100 cm / g received «
Die Ablöschgeschwindigkeit von Branntkalk nach der Pleva-Methode wird durch die Verwendung von 0,10 % Fettsäure C. - Cg gegenüber der zusatzmittelfreien Branntkalkprobe in folgenderThe quenching rate of quicklime according to the Pleva method is determined by the use of 0.10 % fatty acid C. - Cg versus the additive-free quicklime sample in the following
о о ; о cnо о; о cn
Weise herabgesetzt:Way down:
Branntkalkquicklime
Ablcschgeschwindigkeit in C/min nch einer Ablöschzeit von:Delay rate in C / min after an erase time of:
ohne Zusatzwithout addition
O,10 % FettsäureO, 10 % fatty acid
1010
Die Vorteile des erfindungsgemäßen Verfahrens bestehen in der durchgängigen Anwesenheit der grenzflächenaktiven Substanzen und/oder synthetischen Gerbstoffe über das gesamte Verfahren von der ersten Verfahre ns stufe bis zur Härtung«»The advantages of the process according to the invention consist in the continuous presence of the surface-active substances and / or synthetic tanning agents over the entire process from the first stage of the process until curing.
.c D.h., sie bestehen in einer Verbesserung der Mahlung des Bindemittels, in einer Verzögerung und Vergleichmäßigung des Branntkalkablöschens, in einer verbesserten Fließfähigkeit des Frischbetons und verbesserten Umhüllung der Stahlbewehrung sowie in einer Erhöhung der Betonfestigkeit und verminderten Rißanfälligkeit о.c That is, they consist in an improvement of the grinding of the binder, in a delay and equalization of quicklime, in an improved flowability of fresh concrete and improved wrapping of the steel reinforcement and in an increase in concrete strength and reduced susceptibility to cracking о
Claims (1)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD75189625A DD126973B1 (en) | 1975-11-24 | 1975-11-24 | METHOD FOR PRODUCING SILICATE BEVERON |
| DE19762647491 DE2647491A1 (en) | 1975-11-24 | 1976-10-21 | Dense silicate concrete for large building elements - from quartz sand, lime and water with surfactants and/or synthetic tanning agents |
| NL7612086A NL7612086A (en) | 1975-11-24 | 1976-11-01 | PROCESS FOR THE PREPARATION OF SILICATE CONCRETE. |
| SE7613091A SE441089B (en) | 1975-11-24 | 1976-11-23 | PROCEDURE FOR PREPARING SILICONE CONCRETE |
| CS767570A CS203258B1 (en) | 1975-11-24 | 1976-11-23 | Method of producing mixtures of silicate concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD75189625A DD126973B1 (en) | 1975-11-24 | 1975-11-24 | METHOD FOR PRODUCING SILICATE BEVERON |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DD126973A1 DD126973A1 (en) | 1977-08-24 |
| DD126973B1 true DD126973B1 (en) | 1984-08-01 |
Family
ID=5502488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD75189625A DD126973B1 (en) | 1975-11-24 | 1975-11-24 | METHOD FOR PRODUCING SILICATE BEVERON |
Country Status (5)
| Country | Link |
|---|---|
| CS (1) | CS203258B1 (en) |
| DD (1) | DD126973B1 (en) |
| DE (1) | DE2647491A1 (en) |
| NL (1) | NL7612086A (en) |
| SE (1) | SE441089B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD147606A3 (en) * | 1978-11-08 | 1981-04-15 | Goetz Kneschke | SILICATE COMPOSITIONS FOR LARGE-FORMED REINFORCED SILICATE CONCRETE ELEMENTS |
| US6395205B1 (en) * | 1996-07-17 | 2002-05-28 | Chemical Lime Company | Method of manufacturing an aerated autoclaved concrete material |
| AT410089B (en) * | 2001-03-15 | 2003-01-27 | Knoch Kern & Co | Inorganic hydraulically hardened binder used as a binder for mortar, plaster and flooring comprises a natural and/or synthetic material containing silicon dioxide, and calcium oxide and/or calcium hydroxide |
-
1975
- 1975-11-24 DD DD75189625A patent/DD126973B1/en active IP Right Grant
-
1976
- 1976-10-21 DE DE19762647491 patent/DE2647491A1/en not_active Withdrawn
- 1976-11-01 NL NL7612086A patent/NL7612086A/en unknown
- 1976-11-23 CS CS767570A patent/CS203258B1/en unknown
- 1976-11-23 SE SE7613091A patent/SE441089B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DD126973A1 (en) | 1977-08-24 |
| SE7613091L (en) | 1977-05-25 |
| DE2647491A1 (en) | 1977-05-26 |
| SE441089B (en) | 1985-09-09 |
| CS203258B1 (en) | 1981-02-27 |
| NL7612086A (en) | 1977-05-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B1 | Economic patent (sect. 18(1)) |