FR2700161A1 - Bitumen-bonded road covering mix having a long useful life - Google Patents
Bitumen-bonded road covering mix having a long useful life Download PDFInfo
- Publication number
- FR2700161A1 FR2700161A1 FR9315690A FR9315690A FR2700161A1 FR 2700161 A1 FR2700161 A1 FR 2700161A1 FR 9315690 A FR9315690 A FR 9315690A FR 9315690 A FR9315690 A FR 9315690A FR 2700161 A1 FR2700161 A1 FR 2700161A1
- Authority
- FR
- France
- Prior art keywords
- weight
- bitumen
- particle size
- filter dust
- 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.)
- Granted
Links
- 239000000428 dust Substances 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000010426 asphalt Substances 0.000 claims abstract description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 7
- 235000010216 calcium carbonate Nutrition 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims abstract description 7
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 6
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 6
- 239000004576 sand Substances 0.000 claims abstract description 6
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 6
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 6
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 6
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 235000019738 Limestone Nutrition 0.000 claims abstract description 4
- 239000006028 limestone Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 18
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 abstract description 3
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 238000009628 steelmaking Methods 0.000 abstract description 2
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052745 lead Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000011133 lead Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 206010041235 Snoring Diseases 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste 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
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Mélange pour tapis routier
L'invention concerne un mélange pour tapis routier contenant essentiellement des gravillons de granulométrie différentes, du sable et du liant.Blend for road carpet
The invention relates to a mixture for road mats essentially containing gravel of different grain size, sand and binder.
On connaît des mélanges de ce genre qui ont, par exemple, la composition et la granulométrie suivantes - 30 % en poids de gravillons en gravier du Rhin ayant une
granulométrie comprise entre 6 et 10 mm, - 14 % en poids de gravillon en gravier du Rhin ayant une
granulométrie comprise entre 4 et 6 mm, - 50 % en poids de sable du Rhin ayant une granulométrie
comprise entre 0,09 et 4 mm, - 6 % en poids de bitume 80/100.Mixtures of this kind are known which have, for example, the following composition and particle size - 30% by weight of gravel from the Rhine having a
particle size of between 6 and 10 mm, - 14% by weight of gravel from the Rhine having a
particle size between 4 and 6 mm, - 50% by weight of Rhine sand having a particle size
between 0.09 and 4 mm, - 6% by weight of 80/100 bitumen.
Souvent, des tapis routiers en un mélange de ce genre n'ont pas une longévité suffisamment grande, notamment lorsqu'ils sont très sollicités. Often, road mats in a mixture of this kind do not have a sufficiently long life, especially when they are very stressed.
Par le DE-PS 1293072, il est connu d'utiliser du laitier de haut fourneau granulé pour produire des tapis routiers. By DE-PS 1293072, it is known to use granulated blast furnace slag to produce road mats.
La demande de brevet publiée en République Fédérale d'Allemagne sous le nO 3915373 décrit également des matériaux routiers qui, pour une partie prépondérante, sont constitués d'acier de convertisseur. The patent application published in the Federal Republic of Germany under No. 3915373 also describes road materials which, for a preponderant part, consist of converter steel.
On peut ainsi se débarasser des laitiers d'aciérie et obtenir en même temps des tapis routiers très aptes à résister à des charges. It is thus possible to get rid of steelmaking slags and at the same time obtain road mats that are very capable of withstanding loads.
Pour des déchets d'aciérie électrique, comme par exemple des poussières de filtre, cela n'a toutefois pas été possible jusqu'ici, car leur teneur en certaines matières (par exemples en métaux lourds) ne peut pas se comparer à celle de laitiers d'aciérie habituels. For electrical steel mill waste, for example filter dust, however, this has not been possible so far, since their content in certain materials (for example heavy metals) can not be compared to that of slags. usual steelworks.
Ces poussières de filtre doivent être par exemple entreposer dans des halles recouvertes pour prévenir toute pollution de la nappe phréatique. These filter dusts must for example be stored in covered halls to prevent any pollution of the water table.
L'invention vise un mélange pour tapis routier, qui a une longue durée de vie, même lorsqu'il subit de fortes charges. En outre, on peut se débarrasser, par le mélange suivant l'invention, par exemple de la poussière de filtre qui peut se produire dans une aciérie électrique. The invention relates to a mixture for road carpet, which has a long life, even when it is under heavy loads. In addition, the mixture according to the invention can be disposed of, for example, from filter dust which can occur in an electric steel mill.
On y parvient par le mélange pour tapis routier suivant l'invention, qui est composé de la manière suivante - 25 à 35 % en poids de gravillons de granulométrie comprise
entre 4 et 12 m, - de 25 à 35 % en poids de gravillons de granulométrie
comprise entre 2 et 7 mm, - 30 à 50 % en poids de sable de granulométrie comprise entre
0,09 et 3 mm, - de 5 à 7 % en poids de liant sous forme de bitume, - de 2 à 6 % en poids comme charge de poussière de filtre
d'une acierie électrique ayant sensiblement la composition
suivante
de 25 à 55 % en poids de Fe203
de 1,0 à 3,0 % en poids de SiO2
de 0,3 à 0,7 % en poids de A1203
de 2,0 à 3,5 % en poids de MgO
de 5,0 à 7,0 % en poids de MnO
de 0,1 à 0,2 % en poids de P205
de 0,5 à 0,7 % en poids de Na2O
de 0,5 à 0,7 % en poids de K2O
de 5,0 à 7,0 % en poids de CaO
de 0,8 à 1,1 % en poids de Pb
de 13 à 17 % en poids de Zn
de 0,02 à 0,04 % en poids de Ni
de 0,02 à 0,04 % en poids de Ti
de 0,4 à 0,6 % en poids de Ce
de 0,4 à 0,6 % en poids de Cr.This is achieved by the road carpet mixture according to the invention, which is composed in the following manner - 25 to 35% by weight of granules of particle size included
between 4 and 12 m, - 25 to 35% by weight of grain size gravel
between 2 and 7 mm, - 30 to 50% by weight of sand of particle size between
0.09 and 3 mm, 5 to 7% by weight of binder in the form of bitumen, 2 to 6% by weight as filter dust load
of an electrical steel having substantially the composition
next
from 25 to 55% by weight of Fe203
from 1.0 to 3.0% by weight of SiO2
from 0.3 to 0.7% by weight of Al 2 O 3
from 2.0 to 3.5% by weight of MgO
from 5.0 to 7.0% by weight of MnO
from 0.1 to 0.2% by weight of P205
from 0.5 to 0.7% by weight of Na2O
from 0.5 to 0.7% by weight of K2O
from 5.0 to 7.0% by weight of CaO
from 0.8 to 1.1% by weight of Pb
from 13 to 17% by weight of Zn
from 0.02 to 0.04% by weight of Ni
from 0.02 to 0.04% by weight of Ti
0.4 to 0.6% by weight of Ce
from 0.4 to 0.6% by weight of Cr.
qui a une granulométrie de 0,03 à 0,09 mm. which has a particle size of 0.03 to 0.09 mm.
Un perfectionnement de l'invention consiste à utiliser comme poussière de la poussière de filtre d'une aciérie électrique. An improvement of the invention consists in using as dust filter dust of an electric steel mill.
Il est en outre prévu, suivant l'invention, de remplacer jusqu'à la moitié de la poussière par un mélange ayant la composition suivante - de 10 % en poids de laitier de haut fourneau, - de 40 à 50 % en poids de marne (CaCO3 + Sio2), - de 40 à 50 % en poids de poudre de pierre à chaux (CaCO3). According to the invention, it is furthermore intended to replace up to half of the dust with a mixture having the following composition - from 10% by weight of blast furnace slag - from 40% to 50% by weight of marl (CaCO3 + SiO2), - from 40 to 50% by weight of limestone powder (CaCO3).
Les avantages procurés par l'invention sont essentiellement que l'on peut préparer un tapis routier très résistant à l'usure et utiliser en même temps comme charge de la poussière de filtre dont on ne peut sinon se débarrasser que d'une manière coûteuse. Il s'est avéré d'une manière surprenante que, précisement pour des poussières de filtre d'une granulométrie de 0,03 à 0,09 mm, l'aptitude à supporter des charges correspond aux normes exigées et qu'en outre, par l'enrobage de la poussière de filtre, il ne se produit pratiquement pas de lixiviation de métaux lourds toxiques. The advantages provided by the invention are essentially that one can prepare a very wear resistant road carpet and use at the same time as a load of filter dust which can only be disposed of in an expensive manner. Surprisingly, it has been found that, precisely for filter dusts with a particle size of 0.03 to 0.09 mm, the ability to withstand fillers meets the required standards and, furthermore, by the coating of the filter dust, there is practically no leaching of toxic heavy metals.
Comme exemple d'un mélange suivant l'invention, destiné à la préparation d'un tapis routier ou d'un béton asphaltique, on indiquera la composition suivante - 24 % en poids de gravillons morainiques de haute qualité
(Valet + Ott) ayant une granulométrie comprise entre 5 et
8 mm, - 24 % en poids de gravillons morainiques de haute qualité
(Valet + Ott) ayant une granulométrie comprise entre 2 et 5
mm,
granulométrie comprise entre 0,09 et 2 mm, - 6 % en poids de bitume B 200, - 8 % en poids de poussière de filtre ayant l'analyse
suivante
de 25 à 55 % en poids de Fe203
de 1,0 à 3,0 % en poids de SiO2
de 0,3 à 0,7 % en poids de A1203
de 2,0 à 3,5 % en poids de MgO
de 5,0 à 7,0 % en poids de MnO
de 0,1 à 0,2 % en poids de P205
de 0,5 à 0,7 % en poids de Na2O
de 0,5 à 0,7 % en poids de K2O
de 5,0 à 7,0 % en poids de CaO
de 0,8 à 1,1 % en poids de Pb
de 13 à 17 % en poids de Zn
de 0,02 à 0,04 % en poids de Ni
de 0,02 à 0,04 % en poids de Ti
de 0,4 à 0,6 % en poids de Ce
de 0,4 à 0,6 % en poids de Cr.As an example of a mixture according to the invention, intended for the preparation of a road carpet or an asphaltic concrete, the following composition will be indicated: - 24% by weight of high quality moraine gravel
(Valet + Ott) having a particle size of between 5 and
8 mm, - 24% by weight of high quality moraine gravel
(Valet + Ott) having a particle size of between 2 and 5
mm
particle size between 0.09 and 2 mm, - 6% by weight of bitumen B 200, - 8% by weight of filter dust having the analysis
next
from 25 to 55% by weight of Fe203
from 1.0 to 3.0% by weight of SiO2
from 0.3 to 0.7% by weight of Al 2 O 3
from 2.0 to 3.5% by weight of MgO
from 5.0 to 7.0% by weight of MnO
from 0.1 to 0.2% by weight of P205
from 0.5 to 0.7% by weight of Na2O
from 0.5 to 0.7% by weight of K2O
from 5.0 to 7.0% by weight of CaO
from 0.8 to 1.1% by weight of Pb
from 13 to 17% by weight of Zn
from 0.02 to 0.04% by weight of Ni
from 0.02 to 0.04% by weight of Ti
0.4 to 0.6% by weight of Ce
from 0.4 to 0.6% by weight of Cr.
qui a une granulométrie de 0,03 à 0,09 mm. which has a particle size of 0.03 to 0.09 mm.
On peut constituer une autre composition de manière à n'utiliser que 4 % de poussière, en ajoutant à cet effet 4 % d'un mélange constitué - de 10 % en poids de laitier de haut fourneau, - de 40 à 50 % en poids de marne (CaCO3 + Silo2), - de 40 à 50 % en poids de poudre de pierre à chaux (CaCO3). Another composition can be constituted so as to use only 4% of dust, by adding for this purpose 4% of a mixture consisting of - 10% by weight of blast furnace slag, - 40 to 50% by weight of marl (CaCO3 + Silo2), - from 40 to 50% by weight of limestone powder (CaCO3).
Les essais de gonflement en laboratoires donnent les résultats suivants
Propriété de la masse avant l'essai de gonflement
8 % de 4 % de poussière
poussière 4 % dudit
mélange
Masse volumique apparente kg/dm3 2,473 2,468
Stabilité Marshall kN 6,2 7,1
Valeur d'écoulement
Marshall mm 4,0 3,8
Teneur en bits % en (absorption d'eau) volume 5,2 5,0
Propriété de la masse après l'essai de ronflement
Gonflement % en
volume 1,45 0,83
Stabilité Marshall kN 4,3 6,4
Valeur d' écoulement
Marshall mm 4,9 4,3
Diminution de la stabilité % 31 10
La poussière utilisée suivant l'invention exerce à l'évidence un effet de renforcement des bitumes routiers. Le mélange suivant l'invention peut servir, de préférence, pour préparer ce que l'on appelle la couche supérieure et la couche moyenne en construction de routes.Swelling tests in laboratories give the following results
Property of mass before swelling test
8% of 4% dust
dust 4% of said
mixed
Bulk density kg / dm3 2,473 2,468
Marshall Stability kN 6.2 7.1
Flow value
Marshall mm 4.0 3.8
Bit content% in (water absorption) volume 5.2 5.0
Property of mass after snoring test
Swelling% in
volume 1.45 0.83
Marshall stability kN 4.3 6.4
Flow value
Marshall mm 4.9 4.3
Decrease in stability% 31 10
The dust used according to the invention obviously has a reinforcing effect on road bitumens. The mixture according to the invention can preferably be used to prepare the so-called upper and middle layers in road construction.
Le dépoussiérage, par exemple, de la poussière de filtre d'une acierie électrique est sans aucun doute possible avec le mélange suivant l'invention. On a mélangé un mélange de bitume à 3 % de poussière de filtre et on a testé le comportement à la lixiviation de cette composition Éluat par de l'eau distillée suivant DEV S 4 sur de la matière fragmentée (granulométrie comprise entre 0,5 et 1 cm environ) pH 9,8
Conductivité 130
Résidus d'évaporation (mg/l) 80
Phénols " < 0,2
Ammonium " < 0,5
CSB " 40
Cyanure, total " < 0,02
AOX " < 0,1
Fer " 0,12
Fluorure " < 0,1
Chlorure " 6,2
Nitrite " < 0,1
Nitrate " 0,3
Phosphate " < 1
Sulfate " 4,7
Zinc (pu/1) < 20
Plomb " < 50
Cuivre " < 20
Chrome " < 50
Cadmium " < 10
Nickel " < 50
Mercure " < 2
Arseniure " < 1 Évaluation
Le mélange de bitume à utiliser pour la construction routière contient, suivant les indications du fabricant, 3 % de poussière de filtre d'aciérie de la qualité répondant à l'analyse indiquée ci-dessous. La poussière se caractérise notamment par de grandes teneurs en fer, zinc, plomb, cuivre, chrome et cadmium. Conformément à la nature pour la plus grande partie oxydée des métaux lourds présents dans ces poussières, la lixiviation est également faible.La rétention est en outre très favorisée par l'incorporation à la matrice de bitume (nature hydrophobe du bitume !). A l'essai d'élution suivant DEV S 4, on ne peut donc pas déceler les métaux en question à la limite de détection. On ne détecte pas d'autres substances polluantes dans l'éluat, de sorte que le mélange de bitume peut être considéré comme ayant un comportement à l'élution neutre du point de vue écologique.The dedusting, for example, of the filter dust of an electrical steel is undoubtedly possible with the mixture according to the invention. A mixture of bitumen with 3% of filter dust was mixed and the leaching behavior of this composition Was tested by distilled water following DEV S 4 on fragmented material (particle size of between 0.5 and 5%). About 1 cm) pH 9.8
Conductivity 130
Evaporation residues (mg / l) 80
Phenols "<0.2
Ammonium "<0.5
CSB "40
Cyanide, total "<0.02
AOX "<0.1
Iron "0.12
Fluoride "<0,1
Chloride "6.2
Nitrite "<0.1
Nitrate "0.3
Phosphate "<1
Sulfate "4.7
Zinc (pu / 1) <20
Lead "<50
Copper "<20
Chrome "<50
Cadmium "<10
Nickel "<50
Mercury "<2
Arseniure "<1 rating
The bitumen mixture to be used for road construction contains, according to the manufacturer's instructions, 3% of steel mill filter dust of the quality corresponding to the analysis indicated below. Dust is characterized by high levels of iron, zinc, lead, copper, chromium and cadmium. In accordance with the nature of most of the heavy metals present in these dusts, the leaching is also weak. The retention is furthermore very favored by incorporation into the bitumen matrix (hydrophobic nature of the bitumen!). In the elution test according to DEV S 4, it is therefore impossible to detect the metals in question at the limit of detection. Other pollutants in the eluate are not detected, so that the bitumen mixture can be considered to have an environmentally neutral elution behavior.
Une analyse de la poussière de filtre d'une aciérie électrique utilisée ci-dessus a donné le résultat suivant
de 25 à 55 % en poids de Fe203
de 1,0 à 3,0 % en poids de sio2
de 0,3 à 0,7 % en poids de A1203
de 2,0 à 3,5 % en poids de MgO
de 5,0 à 7,0 % en poids de MnO
de 0,1 à 0,2 % en poids de P205
de 0,5 à 0,7 % en poids de Na2O
de 0,5 à 0,7 % en poids de K2O
de 5,0 à 7,0 % en poids de CaO
de 0,8 à 1,1 % en poids de Pb
de 13 à 17 % en poids de Zn
de 0,02 à 0,04 % en poids de Ni
de 0,02 à 0,04 % en poids de Ti
de 0,4 à 0,6 % en poids de Ce
de 0,4 à 0,6 % en poids de Cr.An analysis of the filter dust of an electric steel mill used above gave the following result
from 25 to 55% by weight of Fe203
from 1.0 to 3.0% by weight of SiO 2
from 0.3 to 0.7% by weight of Al 2 O 3
from 2.0 to 3.5% by weight of MgO
from 5.0 to 7.0% by weight of MnO
from 0.1 to 0.2% by weight of P205
from 0.5 to 0.7% by weight of Na2O
from 0.5 to 0.7% by weight of K2O
from 5.0 to 7.0% by weight of CaO
from 0.8 to 1.1% by weight of Pb
from 13 to 17% by weight of Zn
from 0.02 to 0.04% by weight of Ni
from 0.02 to 0.04% by weight of Ti
0.4 to 0.6% by weight of Ce
from 0.4 to 0.6% by weight of Cr.
Ce n'est que pour une granulométrie de la poussière de filtre de 0,03 à 0,09 mm que l'on obtient un enrobage complet des diverses particules de poussière et ainsi une fixation permanente des substances nocives contenues dans les poussières de filtre. It is only for a particle size of the filter dust of 0.03 to 0.09 mm that a complete coating of the various dust particles is obtained and thus a permanent fixation of the harmful substances contained in the filter dust.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4300044 | 1993-01-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2700161A1 true FR2700161A1 (en) | 1994-07-08 |
| FR2700161B1 FR2700161B1 (en) | 1996-07-26 |
Family
ID=6477718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9315690A Expired - Fee Related FR2700161B1 (en) | 1993-01-04 | 1993-12-27 | MIX FOR ROAD MATS. |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE4344006C2 (en) |
| FR (1) | FR2700161B1 (en) |
| LU (1) | LU88446A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2745018A1 (en) * | 1996-02-16 | 1997-08-22 | Routiere Beugnet | Cold coating for road surfaces |
| EP0837043A1 (en) * | 1996-10-17 | 1998-04-22 | Trading and Recycling Company Sint Truiden | Process for processing stainless steel slags |
| RU2150440C1 (en) * | 1998-02-16 | 2000-06-10 | Самарская государственная архитектурно-строительная академия | Bitumen-mineral mix |
| RU2150546C1 (en) * | 1998-01-09 | 2000-06-10 | Самарская государственная архитектурно-строительная академия | Slime concrete |
| RU2151117C1 (en) * | 1999-05-12 | 2000-06-20 | Иванчин Николай Николаевич | Asphalt concrete and method of preparing thereof |
| RU2184808C2 (en) * | 2000-10-09 | 2002-07-10 | Самарская государственная архитектурно-строительная академия | Sludge concrete |
| CN100427682C (en) * | 2006-01-04 | 2008-10-22 | 四川安县银河建化集团有限公司 | A kind of asphalt pavement surface layer material and method prepared by using detoxified chromium slag |
| RU2364676C1 (en) * | 2008-02-11 | 2009-08-20 | Константин Константинович Пугачев | Composition for surface treatment of road carpets |
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 |
| FR2628413A1 (en) * | 1988-03-09 | 1989-09-15 | Anhydrite Ste Mosellane | Setting anhydrite to form columns, dams etc. - using metallurgical waste mud as setting agent |
| 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 |
|---|---|---|---|---|
| DE3725749A1 (en) * | 1987-08-04 | 1989-02-16 | Rheinische Baustoffwerke Gmbh | COMPACTING INDUSTRIAL DUST AND DEPOSITING THE COMPACT |
-
1993
- 1993-12-23 DE DE4344006A patent/DE4344006C2/en not_active Expired - Fee Related
- 1993-12-23 LU LU88446A patent/LU88446A1/en unknown
- 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 |
| FR2628413A1 (en) * | 1988-03-09 | 1989-09-15 | Anhydrite Ste Mosellane | Setting anhydrite to form columns, dams etc. - using metallurgical waste mud as setting agent |
| DE3915373A1 (en) * | 1988-06-03 | 1989-12-14 | Bauakademie Ddr | Building material for traffic surfaces and foundations |
Non-Patent Citations (2)
| Title |
|---|
| DEUSTER: "STEINKOHLENASCHE AUS KRAFTWERKEN ALS STRASSENBAUSTOFF", STRASSEN UND TIEFBAU, no. 3, BERLIN(DE), pages 18 - 27 * |
| TÄUBERT: "FLUGASCHE ALS NEUER BAUSTOFF IM STRASSENBAU", STRASSEN UND TIEFBAU, vol. 37, no. 5, BERLIN(DE), pages 24 - 27 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2745018A1 (en) * | 1996-02-16 | 1997-08-22 | Routiere Beugnet | Cold coating for road surfaces |
| EP0837043A1 (en) * | 1996-10-17 | 1998-04-22 | Trading and Recycling Company Sint Truiden | Process for processing stainless steel slags |
| BE1010700A5 (en) * | 1996-10-17 | 1998-12-01 | Trading And Recycling Company | METHOD FOR PROCESSING stainless steel slags. |
| EP1146022A3 (en) * | 1996-10-17 | 2002-01-23 | Trading and Recycling Company Sint Truiden | Process for processing stainless steel slags |
| EP1055647A3 (en) * | 1996-10-17 | 2002-01-23 | Trading and Recycling Company Sint Truiden | Process for processing stainless steel slags |
| RU2150546C1 (en) * | 1998-01-09 | 2000-06-10 | Самарская государственная архитектурно-строительная академия | Slime concrete |
| RU2150440C1 (en) * | 1998-02-16 | 2000-06-10 | Самарская государственная архитектурно-строительная академия | Bitumen-mineral mix |
| RU2151117C1 (en) * | 1999-05-12 | 2000-06-20 | Иванчин Николай Николаевич | Asphalt concrete and method of preparing thereof |
| RU2184808C2 (en) * | 2000-10-09 | 2002-07-10 | Самарская государственная архитектурно-строительная академия | Sludge concrete |
| CN100427682C (en) * | 2006-01-04 | 2008-10-22 | 四川安县银河建化集团有限公司 | A kind of asphalt pavement surface layer material and method prepared by using detoxified chromium slag |
| RU2364676C1 (en) * | 2008-02-11 | 2009-08-20 | Константин Константинович Пугачев | Composition for surface treatment of road carpets |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4344006C2 (en) | 1998-05-28 |
| DE4344006A1 (en) | 1994-08-11 |
| LU88446A1 (en) | 1994-10-03 |
| FR2700161B1 (en) | 1996-07-26 |
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