DE2002570A1 - Process for the manufacture of products from CaSO4 binders and industrial waste materials - Google Patents
Process for the manufacture of products from CaSO4 binders and industrial waste materialsInfo
- Publication number
- DE2002570A1 DE2002570A1 DE19702002570 DE2002570A DE2002570A1 DE 2002570 A1 DE2002570 A1 DE 2002570A1 DE 19702002570 DE19702002570 DE 19702002570 DE 2002570 A DE2002570 A DE 2002570A DE 2002570 A1 DE2002570 A1 DE 2002570A1
- Authority
- DE
- Germany
- Prior art keywords
- mass
- binder
- industrial waste
- water
- mixture
- 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
Links
- 239000011230 binding agent Substances 0.000 title claims description 42
- 238000000034 method Methods 0.000 title claims description 25
- 239000002440 industrial waste Substances 0.000 title claims description 20
- 239000000463 material Substances 0.000 title claims description 8
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 229910052925 anhydrite Inorganic materials 0.000 title 1
- 239000000203 mixture Substances 0.000 claims description 25
- 239000002956 ash Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 17
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 17
- 239000004571 lime Substances 0.000 claims description 17
- 239000004570 mortar (masonry) Substances 0.000 claims description 11
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims description 9
- 239000003077 lignite Substances 0.000 claims description 8
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 239000002657 fibrous material Substances 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 6
- 239000000377 silicon dioxide Substances 0.000 claims 3
- -1 calcium aluminate sulphate hydrates Chemical class 0.000 claims 2
- 239000001175 calcium sulphate Substances 0.000 claims 1
- 235000011132 calcium sulphate Nutrition 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 238000004448 titration Methods 0.000 claims 1
- 229910052602 gypsum Inorganic materials 0.000 description 7
- 239000010440 gypsum Substances 0.000 description 7
- 239000000654 additive Substances 0.000 description 5
- 239000011507 gypsum plaster Substances 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000184 acid digestion Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- WETINTNJFLGREW-UHFFFAOYSA-N calcium;iron;tetrahydrate Chemical compound O.O.O.O.[Ca].[Fe].[Fe] WETINTNJFLGREW-UHFFFAOYSA-N 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002994 raw material 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
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- 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
- C04B28/14—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 calcium sulfate cements
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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)
- Processing Of Solid Wastes (AREA)
- Compounds Of Iron (AREA)
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Erzeugnissen aus Gips und Industrieanfallstoffen und richtet sich insbesondere auf die Erhöhung der Trocken- und Maßfestigkeiten und die Verbesserung der Witterungsbeständigkeit.The invention relates to a process for the production of products from plaster of paris and industrial waste materials and is directed in particular to increasing the dry and dimensional strengths and improving weather resistance.
Es wurden bereits verschiedene Verfahren vorgeschlagen, durch Zumischung hydraulischer und latenthydraulischer Stoffe zum Gips wasserbeständige Mischungen mit hohen Festigkeiten zu erhalten. Beim Zusatz hydraulischer und latenthydraulischer Stoffe zum Gips wird neben der Gipserhärtung eine hydraulische Erhärtung erreicht, bei der die Zusätze allein und in Verbindung mit Gips zu wasserunlöslichen Produkten hydratisieren. Dadurch wird eine Erhöhung der Wasserbeständigkeit erreicht. Als Zusatzstoffe werden vorwiegend Zemente, Hochofenschlacken, natürliche Puzzolane und bestimmte Aschen eingesetzt. Es ist bekannt, dass der alleinige Zusatz von Zement oder Aschen zum Gips infolge der damit verbundenen Treiberscheinungen im allgemeinen nicht möglich ist. Der Einsatz von Zement oder Aschen erfordert deshalb gleichzeitig die Zuführung von Hochofenschlacken oder natürlichen Puzzolanen in die Mischung.Various methods have already been proposed to obtain water-resistant mixtures with high strengths by adding hydraulic and latent hydraulic substances to the gypsum. When hydraulic and latent hydraulic substances are added to the plaster of paris, in addition to hardening of the plaster, hydraulic hardening is achieved in which the additives alone and in combination with plaster of paris hydrate to form water-insoluble products. This increases the water resistance. The main additives used are cements, blast furnace slag, natural pozzolans and certain ashes. It is known that the sole addition of cement or ash to plaster of paris is generally not possible due to the associated blowing phenomena. The use of cement or ash therefore also requires the addition of blast furnace slag or natural pozzolans to the mixture.
Nachteilig ist, dass Schlacken und natürliche Puzzolane in vielen Ländern nicht oder nur in geringem Umfang zur Verfügung stehen und damit die Voraussetzungen für die Massenproduktion wasser- und raumbeständiger Gipsmischungen unter Verwertung von Aschen fehlen. Der gemeinsame Mangel der bekannten Verfahren besteht darin, dass die zur Verfügung stehenden Gipse und Aschen erhebliche Schwankungen im Chemismus, Mineralbestand und baustofftechnischen Eigenschaften aufweisen. Das Zusammenwirken der Stoffkomponenten läßt sich schwer kontrollieren, die Gefahr von Treiberscheinungen und Zerstörungen durch Ettringitbildung ist nicht ausgeschlossen.The disadvantage is that slag and natural pozzolans are not available in many countries, or only to a limited extent, and thus the prerequisites for the mass production of water- and space-stable gypsum mixtures using ashes are lacking. The common shortcoming of the known processes is that the available gypsums and ashes show considerable fluctuations in chemistry, mineral content and building material properties. The interaction of the material components is difficult to control, the risk of driving phenomena and destruction due to the formation of ettringite cannot be ruled out.
Zweck der Erfindung ist es, die aufgezeigten Mängel zu beseitigen, ausreichend vorhandene Industrieanfallstoffe den Bindemitteln auf CaSOtief4-Basis zur Verbesserung der Gebrauchseigenschaften zuzuführen und sie einer umfangreichen Anwendung zugängig zu machen. Der Erfindung liegt die Aufgabe zugrunde, die CaSOtief4-Bindemittel mit alkalischen Komponenten und solchen Industrieanfallstoffen zusammenzuführen, dass neben der Gipserhärtung die Hydraulefaktoren der Zusatzkomponenten maximal für die Festigkeitsentwicklung genutzt werden, Treiberscheinungen auch bei stärkerer Feuchteinwirkung und schwankender Qualität der einzelnen Komponenten nicht auftreten und weiterhin die Möglichkeit geschaffen wird, hydrophobe Zusätze zugleich beizumischen und deren Wirkungsgrad zu erhöhen.The purpose of the invention is to eliminate the deficiencies indicated, to add sufficient existing industrial waste materials to the binders based on CaSOtief4 in order to improve the properties of use and to make them accessible to a wide range of applications. The invention is based on the task of combining the CaSOtief4 binders with alkaline components and industrial waste materials such that, in addition to hardening the plaster, the hydraulic factors of the additional components are used to the maximum for the development of strength, driving phenomena do not occur even with stronger exposure to moisture and fluctuating quality of the individual components and continue to do so The possibility is created to mix in hydrophobic additives at the same time and to increase their efficiency.
Erfindungsgemäß wird die Aufgabe gelöst, indem dem CaSOtief4-Bindemittel solche Mischungen aus alkalisch reagierenden Bindemitteln und/oder Industrieanfallstoffen zugeführt werden, die bei der Hydratation des Mörtels infolge schneller Bindung des freien Kalkes zur Bildung des sulfatreichen Calciumaluminatsulfathydrates und Calciumferritsulfathydrates führen, wobei die Bildung dieser Hydrate hauptsächlich über die Lösungsphase erfolgt und so zur Festigkeitsentwicklung beiträgt und Treiberscheinungen ausschließt. Als Industrieanfallstoffe werden Verbrennungsrückstände von Kohlen und reaktionsfähige kieselsäurereiche Nebenprodukte, wie sie beim sauren Aufschluß z.B. von Ton und Kaolin anfallen, eingesetzt. Es ist möglich, sowohl Aschen mit als auch solche ohne freien Kalk einzusetzen, soweit sie nur genügend hydraulische Bestandteile enthalten.According to the invention, the object is achieved by adding such mixtures of alkaline binding agents and / or industrial waste to the CaSOtief4 binder which, when the mortar is hydrated, as a result of rapid binding of the free lime, leads to the formation of the sulphate-rich calcium aluminate sulphate hydrate and calcium ferrite sulphate hydrate, whereby the formation This hydrates mainly takes place via the solution phase and thus contributes to the development of strength and excludes driving phenomena. Combustion residues from coal and reactive silicic acid-rich by-products, such as those obtained from acid digestion, e.g. of clay and kaolin, are used as industrial waste. It is possible to use both ashes with and without free lime as long as they only contain sufficient hydraulic components.
Gemäß der Erfindung werden dem CaSOtief4-Bindemittel bis 50 Masse-% einer Mischung vor oder während der Mörtelherstellung zugesetzt, die entweder ausAccording to the invention, up to 50% by mass of a mixture are added to the CaSOtief4 binder before or during the production of the mortar, which either consists of
90 100 Masse-% Asche ohne freien Kalk und 0-30 Masse-% eines alkalisch reagierenden Bindemittels oder90 100% by mass of ash without free lime and 0-30% by mass of an alkaline binding agent or
- 50 95 Masse-% Asche mit freien Kalk und 5 50 Masse-% eines kieselsäurereichen Industrieanfallstoffes, z.B. Sikalit und Amorphit, oder- 50 95% by mass of ash with free lime and 5 50% by mass of a silicic acid-rich industrial waste, e.g. sicalite and amorphite, or
- 0 50 Masse-% eines alkalisch reagierenden Bindemittels und 30 100 Masse-% eines kieselsäurereichen Industrieanfallstoffes, z.B. Sikalit und Amorphit oder- 0 50% by mass of an alkaline binding agent and 30 100% by mass of a silicic acid-rich industrial waste, e.g. sicalite and amorphite or
- aus Mischungen von Verbrennungsrückständen von Kohlen - z.B. Braunkohlenfilterasche-, alkalisch reagierenden Bindemitteln - z.B. Zement und Kalk und kieselsäurereichen Industrieanfallstoffen z.B. Sikalit und Amorphit besteht.- consists of mixtures of combustion residues from coal - e.g. lignite filter ash, alkaline binding agents - e.g. cement and lime and silicic acid-rich industrial waste e.g. sicalite and amorphite.
Der Wasser-Bindemittelfaktor hängt vom jeweiligen Einsatzgebiet ab und liegt zwischen 0,3 1,0. Für den Einsatz von Aschen, die im allgemeinen im Chemismus stark schwanken, wird bei der Einstellung der Mischung von maximalen Gehalt an freien Kalk oder dem minimalenThe water-binding agent factor depends on the respective area of application and is between 0.3 and 1.0. For the use of ashes, which in general vary greatly in chemistry, the maximum or minimum content of free lime is used when setting the mixture
Kalkaufnahmevermögen des Verbrennungsrückstandes ausgegangen und danach der maximale Zusatz an kieselsäurereichen Industrieanfallstoffen und alkalisch reagierenden Bindemitteln festgelegt. Dadurch wird gewährleistet, dass selbst bei starken Schwankungen des Einsatzstoffs deren Verarbeitung möglich ist. Zur Erreichung spezifischer Eigenschaften ist es möglich, den Mischungen aus CaSOtief4-Bindemitteln, alkalisch reagierenden Bindemitteln und/oder Industrieanfallstoffen hydrophobe Zusätze auf Silikonbasis, schaum- oder porenbildende Zusätze, abbinderegulierende Stoffe, anorganische oder organische Fasermaterialien und Kunstharze vor oder während der Mörtelherstellung zuzuführen.Lime absorption capacity of the combustion residue is assumed and then the maximum addition of silicic acid-rich industrial waste and alkaline-reacting binders are determined. This ensures that processing is possible even in the event of strong fluctuations in the raw material. To achieve specific properties, it is possible to add hydrophobic silicone-based additives, foam- or pore-forming additives, setting-regulating substances, inorganic or organic fiber materials and synthetic resins to the mixtures of CaSOtief4 binders, alkaline reacting binders and / or industrial waste before or during the production of the mortar.
Die Industrieanfallstoffe können durch besondere Verfahren aufbereitet werden. Die Erfindung soll nachstehend an Ausführungsbeispielen erläutert werden.The industrial waste materials can be processed using special processes. The invention is to be explained below using exemplary embodiments.
Beispiel 1: 80 Masse-% eines im wesentlichen aus Beta-Halbhydrat bestehenden Gipsbindemittels werden mit 20 Masse-% einer Mischung, bestehend aus 20 Masse-% Portlandzement und 80 Masse-% Braunkohlenfilterasche ohne freien Kalk innig vermischt und mit einem Wasser-Bindemittel-Faktor von 0,75 ein gut verarbeitbarer Mörtelbrei hergestellt.Example 1: 80% by mass of a gypsum binder consisting essentially of beta hemihydrate is intimately mixed with 20% by mass of a mixture consisting of 20% by mass of Portland cement and 80% by mass of lignite filter ash without free lime and with a water-binding agent Factor of 0.75 produces a mortar paste that is easy to work with.
Beispiel 2: 80 Masse-% eines aus einer Mischung von 70 Masse-% Beta-Halbhydrat und 30 Masse-% Alpha-Halbhydrat bestehenden Gipsbindemittels werden mit 20 Masse-% einer Mischung, bestehend aus 50 Masse-% Braunkohlenfilterasche mit freiem Kalk und 50 Masse-% Sikalit oder Amorphit, innig vermischt und mit einem Wasser-Bindemittel-Faktor von 0,75 zu einem gut verarbeitbaren Mörtelbrei verarbeitet.Example 2: 80% by mass of a gypsum binder consisting of a mixture of 70% by mass of beta hemihydrate and 30% by mass of alpha hemihydrate is mixed with 20% by mass of a mixture consisting of 50% by mass of brown coal filter ash with free lime and 50% by mass Mass% sicalite or amorphite, intimately mixed and processed with a water-binding agent factor of 0.75 to form an easily workable mortar paste.
Beispiel 3: 80 Masse-% eines vorwiegend aus Beta-Halbhydrat bestehenden Gipsbindemittels werden mit 20 Masse-% einer Mischung, bestehend aus 30 Masse-% Portlandzement und 70 Masse-% Sikalit oder Amorphit, innig vermischt und mit einem Wasser-Bindemittel-Faktor von 0,75 zu einem Mörtel verarbeitet.Example 3: 80% by mass of a gypsum binder consisting predominantly of beta hemihydrate is intimately mixed with 20% by mass of a mixture consisting of 30% by mass of Portland cement and 70% by mass of sicalite or amorphite and with a water-binding agent factor of 0.75 processed into a mortar.
Beispiel 4: 80 Masse-% eines vorwiegend aus Beta-Halbhydrat bestehendes Gipsbindemittel werden mit 20 Masse-% einer Mischung, bestehend aus 50 Masse-% Braunkohlenfilterasche, 20 Masse-% Amorphit und 30 Masse-% Portlandzement, innig vermischt und mit einem Wasser-Bindemittel-Faktor von 0,70 zu einem Mörtel verarbeitet.Example 4: 80% by mass of a gypsum binder consisting predominantly of beta hemihydrate is intimately mixed with 20% by mass of a mixture consisting of 50% by mass of lignite filter ash, 20% by mass of amorphite and 30% by mass of Portland cement and mixed with water -Binder factor of 0.70 processed into a mortar.
Beispiel 5: 80 Masse-% eines vorwiegend aus Beta-Halbhydrat bestehendem Gipsbindemittels werden mit 20 Masse-% einer Mischung, bestehend aus 80 Masse-% Braunkohlenfilterasche und 20 Masse-% Hochofenzement, innig vermischt und mit Wasser im Verhältnis vonExample 5: 80% by mass of a gypsum binder consisting predominantly of beta hemihydrate is intimately mixed with 20% by mass of a mixture consisting of 80% by mass of lignite filter ash and 20% by mass of blast furnace cement and mixed with water in a ratio of
80 Masseteile Wasser und 100 Masseteile Bindemittel80 parts by mass of water and 100 parts by mass of binder
angerührt, wobei dem Wasser vorher 2 Masse-% Silikon zugesetzt werden.stirred, 2% by mass of silicone being added to the water beforehand.
Claims (18)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD13801569 | 1969-02-20 | ||
| NL7001158A NL7001158A (en) | 1969-02-20 | 1970-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2002570A1 true DE2002570A1 (en) | 1970-09-10 |
Family
ID=25747230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702002570 Pending DE2002570A1 (en) | 1969-02-20 | 1970-01-21 | Process for the manufacture of products from CaSO4 binders and industrial waste materials |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT303599B (en) |
| CS (1) | CS177757B1 (en) |
| DE (1) | DE2002570A1 (en) |
| FR (1) | FR2035614A5 (en) |
| NL (1) | NL7001158A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3002882A1 (en) * | 1979-01-29 | 1980-08-07 | Chiyoda Chem Eng Construct Co | METHOD FOR IMPROVING THE STRENGTH OF A WATER-Saturated SOFT SOIL |
| DE2923545A1 (en) * | 1979-06-09 | 1980-12-18 | Ruhrkohle Ag | METHOD FOR ELIMINATING AND ECONOMICALLY RECYCLING THE RESIDUE FROM THE EXHAUST GAS WASTE OF COMBUSTIONS IN COMBINATION WITH WASTE PRODUCTS |
| DE3124003A1 (en) * | 1981-06-19 | 1983-01-05 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | "DAM CONSTRUCTION MATERIALS IN UNDERGROUND MINING WITH PREFERREDLY OVER 25% ELECTROFILTER DUST PART" |
| AT382860B (en) * | 1981-03-13 | 1987-04-27 | Knauf Westdeutsche Gips | Mechanically compactable material |
| DE3537812A1 (en) * | 1985-10-24 | 1987-04-30 | Deutag Mischwerke Gmbh | Hydraulically hardening binders for road construction and the like |
| EP0169508A3 (en) * | 1984-07-24 | 1987-10-07 | Gebr. Knauf Westdeutsche Gipswerke Kg | Building material from phosho-hemihydrate, process for its production and its use |
| AT385029B (en) * | 1981-04-03 | 1988-02-10 | Rigips Gmbh | PLASTER MIXTURE FOR THE PRODUCTION OF PLASTERBOARD |
| DE3732328A1 (en) * | 1987-09-25 | 1989-04-13 | Hoelter Heinz | Process for landfilling waste materials from boiler furnaces |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3114555C2 (en) * | 1981-04-10 | 1984-12-13 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Use of a hydraulically setting multi-component mixture |
| DE3117436A1 (en) * | 1981-05-02 | 1982-11-11 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Gunning compounds for consolidating freshly cut rock, preferably for mining galleries |
| DE3151882C2 (en) * | 1981-12-30 | 1984-08-30 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Mining mortar |
| DE3151881C2 (en) * | 1981-12-30 | 1984-08-23 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Binder component for mining mortar |
| DE3219197C2 (en) * | 1982-05-21 | 1984-07-12 | Saarbergwerke AG, 6600 Saarbrücken | Construction material for underground mining |
| DE3232079C2 (en) * | 1982-08-28 | 1986-05-22 | Rheinisch-Westfälisches Elektrizitätswerk AG, 4300 Essen | Use of residual plaster and dry residue from a wet or dry working flue gas desulphurisation system |
| DE3237722A1 (en) * | 1982-10-12 | 1984-04-12 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Roadway support system with simultaneous thermal insulation and a preferably simultaneous dust-binding effect |
| DE3243573C2 (en) * | 1982-11-25 | 1985-03-14 | Rigips GmbH, 3452 Bodenwerder | Water-based plaster mixture based on gypsum and other additives |
| ZA879217B (en) * | 1986-12-09 | 1989-04-26 | Lorenzo Valenti Gian | Hydraulic binders and building elements formed of non-traditional materials |
-
1970
- 1970-01-21 DE DE19702002570 patent/DE2002570A1/en active Pending
- 1970-01-26 AT AT69470A patent/AT303599B/en not_active IP Right Cessation
- 1970-01-27 NL NL7001158A patent/NL7001158A/xx unknown
- 1970-02-12 CS CS98770A patent/CS177757B1/cs unknown
- 1970-02-18 FR FR7005818A patent/FR2035614A5/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3002882A1 (en) * | 1979-01-29 | 1980-08-07 | Chiyoda Chem Eng Construct Co | METHOD FOR IMPROVING THE STRENGTH OF A WATER-Saturated SOFT SOIL |
| DE2923545A1 (en) * | 1979-06-09 | 1980-12-18 | Ruhrkohle Ag | METHOD FOR ELIMINATING AND ECONOMICALLY RECYCLING THE RESIDUE FROM THE EXHAUST GAS WASTE OF COMBUSTIONS IN COMBINATION WITH WASTE PRODUCTS |
| EP0021180A1 (en) * | 1979-06-09 | 1981-01-07 | Ruhrkohle Aktiengesellschaft | Process for the elimination and economical usage of the residue produced by washing furnace exhaust gas in connection with waste products |
| AT382860B (en) * | 1981-03-13 | 1987-04-27 | Knauf Westdeutsche Gips | Mechanically compactable material |
| AT385029B (en) * | 1981-04-03 | 1988-02-10 | Rigips Gmbh | PLASTER MIXTURE FOR THE PRODUCTION OF PLASTERBOARD |
| DE3124003A1 (en) * | 1981-06-19 | 1983-01-05 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | "DAM CONSTRUCTION MATERIALS IN UNDERGROUND MINING WITH PREFERREDLY OVER 25% ELECTROFILTER DUST PART" |
| EP0169508A3 (en) * | 1984-07-24 | 1987-10-07 | Gebr. Knauf Westdeutsche Gipswerke Kg | Building material from phosho-hemihydrate, process for its production and its use |
| DE3537812A1 (en) * | 1985-10-24 | 1987-04-30 | Deutag Mischwerke Gmbh | Hydraulically hardening binders for road construction and the like |
| DE3732328A1 (en) * | 1987-09-25 | 1989-04-13 | Hoelter Heinz | Process for landfilling waste materials from boiler furnaces |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2035614A5 (en) | 1970-12-18 |
| NL7001158A (en) | 1971-07-29 |
| CS177757B1 (en) | 1977-08-31 |
| AT303599B (en) | 1972-10-15 |
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