DE4344006A1 - Mixture for road surfaces - Google Patents
Mixture for road surfacesInfo
- Publication number
- DE4344006A1 DE4344006A1 DE19934344006 DE4344006A DE4344006A1 DE 4344006 A1 DE4344006 A1 DE 4344006A1 DE 19934344006 DE19934344006 DE 19934344006 DE 4344006 A DE4344006 A DE 4344006A DE 4344006 A1 DE4344006 A1 DE 4344006A1
- Authority
- DE
- Germany
- Prior art keywords
- weight
- mixture
- grain size
- filter dust
- sand
- 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.)
- Granted
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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/182—Aggregate or filler materials, except those according to E01C7/26
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Die Erfindung betrifft eine Mischung für Straßenbeläge, im wesentlichen Splitte unterschiedlicher Körnung, Sand und Bindemittel enthaltend.The invention relates to a mixture for road surfaces, essentially grits of different grain sizes, sand and containing binders.
Mischungen dieser Art sind bekannt und haben beispielsweise folgende Zusammensetzung bzw. Körnung:Mixtures of this type are known and have for example the following composition or grain size:
- 30 Gew.-% Splitt aus Rheinkies der Körnung 6-10 mm,
- 14 Gew.-% Splitt aus Rheinkies der Körnung 4-6 mm,
- 50 Gew.-% Rheinsand der Körnung 0,09-4 mm,
- 6 Gew.-% Bitumen 80/100- 30% by weight of grit from Rhine gravel with a grain size of 6-10 mm,
14% by weight of grit from Rhine gravel of 4-6 mm grain,
50% by weight of Rhine sand with a grain size of 0.09-4 mm,
- 6% by weight bitumen 80/100
Aus einer solchen Mischung hergestellte Straßenbeläge haben insbesondere bei starker Beanspruchung oft nicht eine ausreichend lange Haltbarkeit.Road surfaces made from such a mixture often do not have, especially with heavy use a sufficiently long shelf life.
Aus der DE-PS 12 93 072 ist es bekannt, granulierte Hochofenschlacken zur Herstellung von Straßenbelägen zu verwenden.From DE-PS 12 93 072 it is known to granulate Blast furnace slags for the production of road surfaces use.
Auch die DE-OS 39 15 373 offenbart Straßenbaustoffe, die zu einem überwiegenden Teil aus Konverterstahlschlacke bestehen.DE-OS 39 15 373 also discloses road building materials predominantly made of converter steel slag consist.
Auf diese Weise können die Stahlwerksschlacken entsorgt und gleichzeitig Straßenbeläge von hoher Belastungsfähigkeit erzielt werden.In this way, the steel mill slags can be disposed of and at the same time high-quality road surfaces Resilience can be achieved.
Bei Abfallprodukten aus Elektrostahlwerken, wie z. B. Filterstäuben, war dies allerdings bisher nicht möglich, da diese bezüglich ihrer Inhaltsstoffe (z. B. Schwermetalle) nicht mit Schlacken aus herkömmlichen Stahlwerken gleichzusetzen sind.For waste products from electrical steel plants, such as. B. Filter dust, but this was not possible until now, because of their ingredients (e.g. Heavy metals) not with slags from conventional Steelworks are to be equated.
Derartige Filterstäube müssen beispielsweise in abgedeckten Hallen zwischengelagert werden, um eine Verseuchung des Grundwassers zu vermeiden.Such filter dust must, for example, in covered halls to be temporarily stored To avoid contamination of the groundwater.
Der Erfindung liegt die Aufgabe zugrunde, eine Mischung für Straßenbeläge zu schaffen, die auch bei größerer Belastung eine lange Lebensdauer aufweist und über die der Filterstaub, der in einem Elektro-Stahlwerk anfällt, entsorgt werden kann.The invention has for its object a mixture to create for road surfaces, even with larger ones Has a long service life and over the the filter dust that accumulates in an electrical steel plant, can be disposed of.
Diese Aufgabe wird durch die erfindungsgemäße Mischung für Straßenbeläge gelöst, die wie folgt zusammengesetzt ist:This object is achieved by the mixture according to the invention solved for road surfaces that are composed as follows is:
- 25-35 Gew.-% Splitt der Körnung 4-12 mm,
- 25-35 Gew.-% Splitt der Körnung 2-7 mm
- 30-50 Gew.-% Sand der Körnung 0,09-3 mm
- 5-7 Gew. -% Bindemittel in Form von Bitumen
- 2-6 Gew.-% als Füller Filterstaub eines Elektro-
Stahlwerks mit im wesentlichen
folgender Zusammensetzung
25-55% Fe2O3
1,0-3,0% SiO2
0,3-0,7% Al2O3
2,0-3,5% MgO
5,0-7,0% MnO
0,1-0,2% P2O5
0,5-0,7% Na2O
0,5-0,7% K2O
5,0-7,0% CaO
0,8-1,1% Pb
13-17% Zn
0,02-0,04% Ni
0,02 -0,04% Ti
0,4-0,6% Ce
0,4-0,6% Cr
der eine Korngröße von 0,03 bis 0,09
mm aufweist.- 25-35% by weight of grit 4-12 mm,
- 25-35% by weight of grit 2-7 mm
- 30-50% by weight sand with a grain size of 0.09-3 mm
- 5-7% by weight of binder in the form of bitumen
- 2-6 wt .-% as a filler filter dust of an electrical steel plant with the following composition
25-55% Fe 2 O 3
1.0-3.0% SiO 2
0.3-0.7% Al 2 O 3
2.0-3.5% MgO
5.0-7.0% MnO
0.1-0.2% P 2 O 5
0.5-0.7% Na 2 O
0.5-0.7% K 2 O
5.0-7.0% CaO
0.8-1.1% Pb
13-17% Zn
0.02-0.04% Ni
0.02-0.04% Ti
0.4-0.6% Ce
0.4-0.6% Cr
which has a grain size of 0.03 to 0.09 mm.
Gemäß der Erfindung ist weiterhin vorgesehen, daß die Menge an Filterstaub bis zur Hälfte durch eine Mischung der folgenden Zusammensetzung ersetzt wird:According to the invention it is further provided that the Amount of filter dust up to half through a mixture of the following composition is replaced:
- 10 Gew.-% granulierte Hochofenschlacke,
- 40-50 Gew.-% Mergel (CaCO3 + SiO2),
- 40-50 Gew.-% Kalksteinmehl (CaCO3).- 10% by weight of granulated blast furnace slag,
- 40-50% by weight marl (CaCO 3 + SiO 2 ),
- 40-50% by weight limestone flour (CaCO 3 ).
Die mit der Erfindung erzielten Vorteile bestehen im wesentlichen darin, daß ein sehr verschleißfester Straßenbelag hergestellt werden kann und gleichzeitig als Füller Filterstaub verwendet wird, der sonst nur kostspielig zu entsorgen ist. Es hat sich als überraschend herausgestellt, daß gerade bei Filterstäuben einer Korngröße von 0,03 bis 0,09 mm die Belastbarkeit den geforderten Normen entspricht und zudem durch die Ummantelung des Filterstaubs praktisch keine Auswaschung der toxischen Schwermetalle stattfindet.The advantages achieved by the invention are essential in that a very wear-resistant Road surface can be made and at the same time as Filler filter dust is used, which otherwise only is expensive to dispose of. It turned out to be surprisingly found that especially with filter dusts a grain size of 0.03 to 0.09 mm the resilience complies with the required standards and also through the Covering the filter dust practically no washing out of toxic heavy metals takes place.
Als Beispiel für eine erfindungsgemäße Mischung zur Herstellung eines Straßenbelags bzw. Asphaltbetons sei folgende Zusammensetzung angegeben:As an example of a mixture according to the invention for Production of a road surface or asphalt concrete given the following composition:
- 24 Gew.-% Moräne-Edelsplitt (Valet+Ott) mit der Körnung
5-8 mm,
- 24 Gew. -% Moräne-Edelsplitt (Valet+Ott) mit der Körnung
2-5 mm,
- 38 Gew. -% Moräne-Edelbrechsand mit der Körnung
0,09-2 mm,
- 6 Gew.-% Bitumen B 200,
- 8 Gew.-% Filterstaub mit folgender Analyse
25-55% Fe2O3
1,0-3,0% SiO2
0,3-0,7% Al2O3
2,0-3,5% MgO
5,0-7,0% MnO
0,1-0,2% P2O5
0,5-0,7% Na2O
0,5-0,7% K2O
5,0-7,0% CaO
0,8-1,1% Pb
13-17% Zn
0,02-0,04% Ni
0,02-0,04% Ti
0,4-0,6% Ce
0,4-0,6% Cr
der eine Korngröße von 0,03 bis 0,09
mm aufweist.24% by weight of moraine fine grit (Valet + Ott) with a grain size of 5-8 mm,
- 24% by weight of moraine fine grit (Valet + Ott) with a grain size of 2-5 mm,
- 38% by weight of moraine fine crushed sand with a grain size of 0.09-2 mm,
- 6% by weight of bitumen B 200,
- 8% by weight filter dust with the following analysis
25-55% Fe 2 O 3
1.0-3.0% SiO 2
0.3-0.7% Al 2 O 3
2.0-3.5% MgO
5.0-7.0% MnO
0.1-0.2% P 2 O 5
0.5-0.7% Na 2 O
0.5-0.7% K 2 O
5.0-7.0% CaO
0.8-1.1% Pb
13-17% Zn
0.02-0.04% Ni
0.02-0.04% Ti
0.4-0.6% Ce
0.4-0.6% Cr
which has a grain size of 0.03 to 0.09 mm.
Eine andere Zusammensetzung kann so aufgebaut sein, daß nur 4% Staub verwendet werden und dafür 4% einer Mischung ausAnother composition can be so constructed that only 4% dust is used and 4% one Mixture of
- 10 Gew.-% granulierte Hochofenschlacke,
- 40-50 Gew.-% Mergel (CaCO3 + SiO2),
- 40-50 Gew.-% Kalksteinmehl (CaCO3,- 10% by weight of granulated blast furnace slag,
- 40-50% by weight marl (CaCO 3 + SiO 2 ),
- 40-50% by weight limestone flour (CaCO 3 ,
dazugegeben wird. is added.
Was den Quellversuch anbelangt, so ergaben sich folgende Ergebnisse im Laborversuch:As for the swelling test, the following were found Results in the laboratory test:
Der erfindungsgemäß verwendete Staub übt offenbar auf Straßenbaubitumen eine versteifende Wirkung aus. Die erfindungsgemäße Mischung kann vorzugsweise zur Herstellung der sogenannten Ober- und Mittelschicht im Straßenbau dienen.The dust used according to the invention apparently exerts Road construction bitumen has a stiffening effect. The Mixture according to the invention can preferably be used Production of the so-called upper and middle class in Serve road construction.
Die Entsorgung von beispielsweise Filterstaub aus einem
Elektro-Stahlwerk ist mit der erfindungsgemäßen Mischung
ohne weiteres möglich. Eine Bitumenmischung wurde mit 3%
Filterstaub versetzt und daß Auslaugeverhalten der so
hergestellten Masse getestet:
Eluat mit dest. Wasser nach DEV S 4 an zerkleinertem
Material (Korngröße ca. 0,5-1 cm)The disposal of filter dust, for example, from an electrical steel works is readily possible with the mixture according to the invention. A bitumen mixture was mixed with 3% filter dust and the leaching behavior of the mass thus prepared was tested:
Eluate with dist. Water according to DEV S 4 on crushed
Material (grain size approx. 0.5-1 cm)
pH-Wert 9,8
Leitfähigkeit 130
Abdampfrückstand (mg/l) 80
Phenole (mg/l) < 0,2
Ammonium (mg/l) < 0,5
CSB (mg/l) 40
Cyanide, ges. (mg/l) < 0,02
AOX (mg/l) < 0,1
Eisen (mg/l) 0,12
Fluorid (mg/l) < 0,1
Chlorid (mg/l) 6,2
Nitrit (mg/l) < 0,1
Nitrat (mg/l) 0,3
Phosphat (mg/l) < 1
Sulfat (mg/l) 4,7
Zink (µg/l) < 20
Blei (µg/l) < 50
Kupfer (µg/l) < 20
Chrom (µg/l) < 50
Cadmium (µg/l) < 10
Nickel (µg/l) < 50
Quecksilber (µg/l) <2
Arsen (µg/l) < 1pH 9.8
Conductivity 130
Evaporation residue (mg / l) 80
Phenols (mg / l) <0.2
Ammonium (mg / l) <0.5
COD (mg / l) 40
Cyanide, sat. (mg / l) <0.02
AOX (mg / l) <0.1
Iron (mg / l) 0.12
Fluoride (mg / l) <0.1
Chloride (mg / l) 6.2
Nitrite (mg / l) <0.1
Nitrate (mg / l) 0.3
Phosphate (mg / l) <1
Sulfate (mg / l) 4.7
Zinc (µg / l) <20
Lead (µg / l) <50
Copper (µg / l) <20
Chromium (µg / l) <50
Cadmium (µg / l) <10
Nickel (µg / l) <50
Mercury (µg / l) <2
Arsenic (µg / l) <1
Die Bitumenmischung, die zum Straßenbau eingesetzt werden soll, enthält nach Angabe des Herstellers 3% Stahlwerksfilterstaub der von uns beiliegend analysierten Qualität. Der Staub zeichnet sich besonders durch erhöhte Gehalte an Eisen, Zink, Blei, Kupfer, Chrom und Cadmium aus. Entsprechend der zumeist oxydischen Natur in solchen Stäuben vorliegender Schwermetalle ist auch das Auslaugeverhalten entsprechend niedrig. Die Retention wird weiterhin stark durch die Einbindung in die Bitumenmatrix begünstigt (hydrophobe Natur des Bitumens !). Im Elutionstest nach DEV S 4 konnten somit die relevanten Metalle bis zur Bestimmungsgrenze nicht nachgewiesen werden. Weitere Schadstoffe waren im Eluat nicht nachweisbar, so daß der Bitumenmischung anhand unserer Untersuchungen ein umweltneutrales Elutionsverhalten attestiert werden kann.The bitumen mix used for road construction according to the manufacturer, contains 3% Steel mill filter dust of the one we analyzed enclosed Quality. The dust is particularly characterized by increased Contains iron, zinc, lead, copper, chromium and cadmium out. According to the mostly oxidic nature in such Dusting heavy metals is also that Leaching behavior accordingly low. The retention will continue to be strong through inclusion in the Bitumen matrix favors (hydrophobic nature of the Bitumen!). Thus, in the elution test according to DEV S 4 the relevant metals up to the limit of quantification be detected. Other pollutants were in the eluate not detectable, so based on the bitumen mixture our investigations an environmentally neutral Elution behavior can be attested.
Der vorstehend eingesetzte Filterstaub aus einem Elektro- Stahlwerk hatte das folgende Analysenergebnis:The filter dust used above from an electrical Stahlwerk had the following analysis result:
25-55% Fe2O3
1,0-3,0% SiO2
0,3-0,7% Al2O3
2,0-3,5% MgO
5,0-7,0% MnO
0,1-0,2% P2O5
0,5-0,7% Na2O
0,5-0,7% K2O
5,0-7,0% CaO
0,8-1,1% Pb
13-17% Zn
0,02-0,04% Ni
0,02-0,04% Ti
0,4-0,6% Ce
0,4-0,6% Cr.25-55% Fe 2 O 3
1.0-3.0% SiO 2
0.3-0.7% Al 2 O 3
2.0-3.5% MgO
5.0-7.0% MnO
0.1-0.2% P 2 O 5
0.5-0.7% Na 2 O
0.5-0.7% K 2 O
5.0-7.0% CaO
0.8-1.1% Pb
13-17% Zn
0.02-0.04% Ni
0.02-0.04% Ti
0.4-0.6% Ce
0.4-0.6% Cr.
Allerdings ist nur bei einer Korngröße des Filterstaubs von 0,03 bis 0,09 mm eine vollständige Ummantelung der einzelnen Staubteile und somit eine dauerhafte Einbindung der schädlichen Inhaltsstoffe der Filterstäube gegeben.However, only with a grain size of the filter dust from 0.03 to 0.09 mm a complete covering of the individual dust particles and thus permanent integration the harmful ingredients of the filter dust.
Claims (2)
-25-35 Gew. -% Splitt der Körnung 2-7 mm,
-30-50 Gew.-% Sand der Körnung 0,09-3 mm,
- 5-7 Gew. -% Bindemittel in Form von Bitumen,
- 2-6 Gew.-% als Füller Filterstaub eines Elektro- Stahlwerks mit im wesentlichen folgender Zusammensetzung
25-55% Fe2O3
1,0-3,0% SiO2
0,3-0,7% Al2O3
2,0-3,5% MgO
5,0-7,0% MnO
0,1-0,2% P2O5
0,5-0,7% Na2O
0,5-0,7% K2O
5,0-7,0% CaO
0,8-1,1% Pb
13-17% Zn
0,02-0,04% Ni
0,02 -0,04% Ti
0,4-0,6% Ce
0,4-0,6% Cr
der eine Korngröße von 0,03 bis 0,09 mm aufweist. 1. Mixture for road surfaces, essentially containing grit of different grain size, sand and binder, consisting of -25-35% by weight grit of grain size 4-12 mm,
-25-35% by weight of grit 2-7 mm,
-30-50% by weight sand with a grain size of 0.09-3 mm,
- 5-7% by weight of binder in the form of bitumen,
- 2-6 wt .-% as a filler filter dust of an electrical steel plant with the following composition
25-55% Fe 2 O 3
1.0-3.0% SiO 2
0.3-0.7% Al 2 O 3
2.0-3.5% MgO
5.0-7.0% MnO
0.1-0.2% P 2 O 5
0.5-0.7% Na 2 O
0.5-0.7% K 2 O
5.0-7.0% CaO
0.8-1.1% Pb
13-17% Zn
0.02-0.04% Ni
0.02-0.04% Ti
0.4-0.6% Ce
0.4-0.6% Cr
which has a grain size of 0.03 to 0.09 mm.
- 40-50 Gew.-% Mergel (CaCO3 + SiO2),
- 40-50 Gew.-% Kalksteinmehl (CaCO3).2. Mixture according to claim 1, characterized in that up to half of the amount of filter dust is replaced by a mixture of the following composition: 10% by weight of granulated blast furnace slag,
- 40-50% by weight marl (CaCO 3 + SiO 2 ),
- 40-50% by weight limestone flour (CaCO 3 ).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9321468U DE9321468U1 (en) | 1993-01-04 | 1993-12-23 | Mixture for road surfaces |
| DE4344006A DE4344006C2 (en) | 1993-01-04 | 1993-12-23 | Mixture for road surfaces |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4300044 | 1993-01-04 | ||
| DE4344006A DE4344006C2 (en) | 1993-01-04 | 1993-12-23 | Mixture for road surfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE4344006A1 true DE4344006A1 (en) | 1994-08-11 |
| DE4344006C2 DE4344006C2 (en) | 1998-05-28 |
Family
ID=6477718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE4344006A Expired - Fee Related DE4344006C2 (en) | 1993-01-04 | 1993-12-23 | Mixture for road surfaces |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE4344006C2 (en) |
| FR (1) | FR2700161B1 (en) |
| LU (1) | LU88446A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1146022B2 (en) † | 1996-10-17 | 2016-11-09 | Trading and Recycling Company Sint Truiden | Process for processing stainless steel slags |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2745018B1 (en) * | 1996-02-16 | 1998-04-24 | Routiere Beugnet | PROCESS FOR MANUFACTURING COLD COVERS FOR ROAD LAYER, AS WELL AS COVER OBTAINED BY IMPLEMENTING THIS PROCESS |
| CN100427682C (en) * | 2006-01-04 | 2008-10-22 | 四川安县银河建化集团有限公司 | Use of detoxinic chromium slag as paving material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1293072B (en) * | 1964-03-12 | 1969-04-17 | Mannesmann Ag | Mineral concrete for road construction purposes |
| DE3725749A1 (en) * | 1987-08-04 | 1989-02-16 | Rheinische Baustoffwerke Gmbh | Processing environmentally harmful industrial waste e.g. filter dust - by compacting with binder e.g. to stackable blocks built up at dump |
| DE3915373A1 (en) * | 1988-06-03 | 1989-12-14 | Bauakademie Ddr | Building material for traffic surfaces and foundations |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2628413B1 (en) * | 1988-03-09 | 1992-08-14 | Anhydrite Ste Mosellane | METHOD FOR ACCELERATING HYDRAULIC TAKING OF ANHYDRITE AND APPLICATIONS OF SAID METHOD |
-
1993
- 1993-12-23 LU LU88446A patent/LU88446A1/en unknown
- 1993-12-23 DE DE4344006A patent/DE4344006C2/en not_active Expired - Fee Related
- 1993-12-27 FR FR9315690A patent/FR2700161B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1293072B (en) * | 1964-03-12 | 1969-04-17 | Mannesmann Ag | Mineral concrete for road construction purposes |
| DE3725749A1 (en) * | 1987-08-04 | 1989-02-16 | Rheinische Baustoffwerke Gmbh | Processing environmentally harmful industrial waste e.g. filter dust - by compacting with binder e.g. to stackable blocks built up at dump |
| DE3915373A1 (en) * | 1988-06-03 | 1989-12-14 | Bauakademie Ddr | Building material for traffic surfaces and foundations |
Non-Patent Citations (3)
| Title |
|---|
| JP 48089878 zit. als Derwent Abstr., Nr. AN 74-40704V * |
| JP 51069483 zit. als Derwent Abstr., Nr. AN 76-58618X * |
| JP 52012755 zit. als Derwent Abstr., Nr. AN 77-18765Y * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1146022B2 (en) † | 1996-10-17 | 2016-11-09 | Trading and Recycling Company Sint Truiden | Process for processing stainless steel slags |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2700161A1 (en) | 1994-07-08 |
| DE4344006C2 (en) | 1998-05-28 |
| LU88446A1 (en) | 1994-10-03 |
| FR2700161B1 (en) | 1996-07-26 |
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