EP0781887A1 - Verfahren und Vorrichtung zum Herstellen von kalten bituminösen dichten Stoffen - Google Patents

Verfahren und Vorrichtung zum Herstellen von kalten bituminösen dichten Stoffen Download PDF

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Publication number
EP0781887A1
EP0781887A1 EP96402835A EP96402835A EP0781887A1 EP 0781887 A1 EP0781887 A1 EP 0781887A1 EP 96402835 A EP96402835 A EP 96402835A EP 96402835 A EP96402835 A EP 96402835A EP 0781887 A1 EP0781887 A1 EP 0781887A1
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EP
European Patent Office
Prior art keywords
emulsion
ebpf
esbpf
elements
mixer
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
Application number
EP96402835A
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English (en)
French (fr)
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EP0781887B1 (de
Inventor
André Clarac
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Colas SA
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Colas SA
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Publication date
Application filed by Colas SA filed Critical Colas SA
Publication of EP0781887A1 publication Critical patent/EP0781887A1/de
Application granted granted Critical
Publication of EP0781887B1 publication Critical patent/EP0781887B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
    • E01C19/1045—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers the mixture being discharged continuously
    • 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
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1068—Supplying or proportioning the ingredients

Definitions

  • the invention relates to a process for the cold production of dense bituminous mixes by total selective coating.
  • the invention also relates to a device for implementing the method.
  • the present invention relates to dense bituminous mixes consisting of large elements and fine elements, the large elements being elements with a particle size between 2 and 31.5 mm and the fine elements being elements with a particle size between 0 and 6 mm.
  • dense bituminous mixes capable of being stored are generally obtained using a hot technique. This hot technique involves heating either the aggregates or the coating binder.
  • the document FR-A-2.623.219 describes a process for cold manufacturing of dense bituminous mixes which can be stored in which the coating of the materials is separated according to their particle size. More particularly, the fine elements of 0/2 or 0/4 mm particle size are first coated with a cationic emulsion of bituminous binder containing fluidized bitumen. The materials thus coated are then stored.
  • Coating of the large elements is also carried out using a cationic emulsion of fluxed or fluidized bitumen different from that used for the fine elements.
  • the fine elements, previously coated and which have been stored, are then incorporated into the large elements also coated, and mixing is continued for a few seconds to obtain, at the end, a product capable of being stored.
  • the object of the invention is to overcome these drawbacks, and in particular to simplify the process, for example, by eliminating the period of ripening or intermediate storage, and to reduce production time and production costs.
  • the object of the invention is achieved by a process for obtaining cold dense bituminous mixes by total selective coating, comprising the steps: introduction of large elements into a mixer, introduction of a first emulsion dosed so as to obtain a homogeneous and uniform binder film on the coarse elements, introduction of fine elements and of a second metered emulsion to obtain a total coating of the mixture.
  • the cumulative dosage of the two emulsions is adapted according to the richness module sought for the mixture.
  • the second emulsion is obtained during kneading from the first emulsion by adding an agent to the latter.
  • the second emulsion is obtained by mixing the first emulsion with an aqueous cationic agent, hereinafter also called SV solution.
  • the first emulsion is a medium-breaking cationic emulsion composed of pure bitumen or fluidized bitumen.
  • the second emulsion is a stabilized cationic emulsion composed of pure bitumen or fluidized bitumen.
  • the SV solution advantageously comprises additives which make it possible to obtain an emulsion having a viscosity of between 3 and 1000 STV.
  • the SV solution is composed of surfactants and acids in the quality and quantity necessary to obtain a good coating of the mixture of large elements and fine elements, as well as sufficient workability to ensure, in good conditions, transport and use of dense asphalt when cold.
  • the SV solution is advantageously dosed at a rate of 0.5 to 2% of the mixture of large elements and fine elements.
  • the object of the invention is also achieved by a device for the cold production of dense bituminous mixes by total selective coating.
  • This device includes a kneader, first supply means intended for the addition of large elements, second supply means intended for the addition of fine elements, third supply means intended for the addition of water, fourth supply means intended for the addition of a first emulsion, and fifth supply means intended for the addition of a second emulsion.
  • the device also comprises means for distributing the flow of the first emulsion making it possible to derive a part thereof for the preparation of the second emulsion by mixing the part derived from the first emulsion with an agent provided by sixth supply means, the fourth and fifth supply means being arranged so that the first and second emulsion enter the mixer at a defined distance from each other.
  • the distance between the place of mixing of the first emulsion with the agent and the place of introduction of the second emulsion into the mixer is greater than 1 m.
  • the necessary water can be introduced into the fifth means of supply of the second emulsion, downstream of the introduction of the SV solution.
  • Figure 1 a single figure, schematically shows the method of the invention and the means for its implementation.
  • the continuous process of the present invention implements a total selective coating of a material composed of large GG elements and fine GF elements, in a mixer 1 into which the large GG elements are first introduced fed by a first conveyor 2.
  • Large elements have a particle size 2/6, 2/10, 2/14, 2/20 or 4/6, 4/10 or 4/14 or 6/10, 6/14, 6/20.
  • water is introduced by means of a first line 3 and a first EBPF emulsion (pure / fluidized bitumen emulsion) by means of a second line 4.
  • the fine elements GF having a particle size 0/2, 0/4 or 0/6 are introduced by means of a second conveyor 5 and a second emulsion ESBPF (stabilized emulsion of pure / fluidized bitumen) by means of a third line 6.
  • ESBPF stabilized emulsion of pure / fluidized bitumen
  • the first bitumen emulsion EBPF consists of a pure bitumen of grade 25/35 to 180/220 or a fluidized bitumen. Pure bitumen corresponds to those normally used for obtaining non-storable mixes applied in foundation or surface layers.
  • the fluidized bitumen has a viscosity adapted to the duration of storage of the mix and to the implementation procedure, either manual or mechanized.
  • the EBPF emulsion is an emulsion of the ECM65 or ECM69 type, IREC ⁇ 140.
  • the second ESBPF emulsion obtained after the introduction of an aqueous cationic agent, that is to say of an SV solution, into the first EBPF emulsion, is an emulsion of the ECL type, IREC> 180.
  • the SV solution is composed of surfactants such as tallow propylene polyamine and acids such as hydrochloric acid and petroleum thinning agent.
  • the quality and quantity of these two groups of additives are chosen so as to obtain a second emulsion having a viscosity of between 3 and 1000 STV.
  • the SV solution itself is stable for several weeks at a viscosity between 0.2 and 4 poises and can be stored at room temperature in a tank.
  • the continuous process of the present invention thus provides a significant time saving compared to other processes by the fact that there is no intermediate storage of any granular fraction, nor setting of the material.
  • the continuous process of the present invention is more simple to use insofar as it requires the preparation of a single emulsion.
  • the device for the cold production of dense bituminous mixes by total selective coating shown diagrammatically in FIG. 1 comprises a mixer 1 driven by a motor 7.
  • the mixer 1 is provided with two axes 8 and 9 each of which is provided with elements 10 formed and arranged so as to ensure a good mixture of the components successively added to the mixer.
  • the mixer 1 has a first end 11 at which is located a first inlet 31 as well as a second end 12 at which is located an outlet 22 of the mixer.
  • the large GG elements are introduced into the mixer by first supply means of which the first conveyor 2 is a part.
  • the conveyor 2 is arranged at the inlet 31 of the mixer 1 so that the large GG elements enter it, either directly , or for example, by means of a chute.
  • the fine elements GF are introduced further into the mixer 1 by means of second supply means of which the second conveyor 5 is arranged such that the fine elements GF enter the mixer 1 through a second inlet 32 located approximately at middle of mixer 1.
  • third supply means essentially comprising a first pipe 3 disposed close to the first inlet 31 of the mixer 1.
  • fourth supply means comprising a pump 14 connected by a pipe 15 to a distribution valve 16 and the second pipe 4 intended for the addition of the first emulsion EBPF to the large GG elements.
  • the first EBPF emulsion is stored in a reservoir 13 from which it is pumped by means of the pump 14 and through the pipe 15 to the distribution valve 16.
  • the distribution valve 16 divides the flow of the first EBPF emulsion into a first partial quantity entering via the second line 4 into the mixer 1 and a second partial quantity passing through a line 17 to fifth supply means comprising the third line 6.
  • the volume ratio between the quantity passing through the second line 4 and the quantity passing through the line 17 is chosen from the ratios ranging from approximately 40:60 to approximately 60:40 deriving approximately 40 to 60% of the flow of the first emulsion EBPF for the preparation of the second emulsion ESBPF.
  • Line 17 is connected to the third line 6, by a mixer 21.
  • This mixer 21 is formed by a connection piece having a double connection on one side, intended for the connection of lines 17 and 20, and a single connection of the 'other side, intended for the connection of the pipe 6.
  • the SV solution is stored in a tank 18 and is supplied to the mixer 21 by sixth supply means comprising a pump 19 and a line 20.
  • the SV solution is introduced into the third line 6 to be mixed therewith the first EBPF emulsion in order to obtain the second ESBPF emulsion.
  • the third line 6 is arranged in the mixer 1 so that the second ESBPF emulsion is introduced into the mixer 1 after the fine elements GF have been introduced into the mixer.
  • the distance between the mixer 21, that is to say between the point of pricking of the first emulsion EBPF for the introduction of the SV solution, and a mouth of the line 6 in mixer 1, must be greater than 1 m to ensure good dispersion of the SV solution in the first EBPF emulsion.
  • the addition water necessary for good dispersion of the ESBPF emulsion in the mixture of the large elements GG and the fine elements GF can be introduced by means of a pipe 24 connected to the pipe 6 at a junction point 25 disposed downstream of the introduction of the SV solution.
  • the dense bituminous mixes obtained in the mixer 1 exit from it through an outlet 22 where they are taken care of, for example, by means of transport transporting them to places of storage or application.
  • the solution SV intended to be added to the first emulsion EBPF to obtain the second emulsion ESBPF can advantageously be the solution COLSTAB (registered trademark).

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Paints Or Removers (AREA)
  • Road Paving Machines (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Road Paving Structures (AREA)
  • Organic Insulating Materials (AREA)
EP96402835A 1995-12-28 1996-12-19 Verfahren und Vorrichtung zum Herstellen von kalten bituminösen dichten Stoffen Expired - Lifetime EP0781887B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9515677 1995-12-28
FR9515677A FR2743095B1 (fr) 1995-12-28 1995-12-28 Procede d'obtention a froid d'enrobes denses bitumineux et dispositif pour la mise en oeuvre de ce procede

Publications (2)

Publication Number Publication Date
EP0781887A1 true EP0781887A1 (de) 1997-07-02
EP0781887B1 EP0781887B1 (de) 2002-08-14

Family

ID=9486097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96402835A Expired - Lifetime EP0781887B1 (de) 1995-12-28 1996-12-19 Verfahren und Vorrichtung zum Herstellen von kalten bituminösen dichten Stoffen

Country Status (12)

Country Link
EP (1) EP0781887B1 (de)
AT (1) ATE222310T1 (de)
CZ (1) CZ383496A3 (de)
DE (1) DE69622981T2 (de)
DK (1) DK0781887T3 (de)
ES (1) ES2179921T3 (de)
FR (1) FR2743095B1 (de)
HU (1) HUP9603542A3 (de)
IS (1) IS4402A (de)
PL (1) PL317701A1 (de)
PT (1) PT781887E (de)
RO (1) RO116411B1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2847596A1 (fr) 2002-11-21 2004-05-28 Demeter Technologie Sa Procede de fabrication, notamment a froid, d'un enrobe, et enrobe obtenu par la mise en oeuvre de ce procede
US7114843B2 (en) 2003-07-21 2006-10-03 Htp Est Method of manufacturing a bituminous coated aggregate mix
US7114875B2 (en) 2003-04-18 2006-10-03 Htp Est Method and apparatus for laying hot blacktop paving material
WO2011151387A1 (fr) 2010-06-04 2011-12-08 Eurovia Procédé de fabrication d'enrobés hydrocarbonés à froid, enrobés hydrocarbonés à froid à maniabilité contrôlée et leur utilisation pour la réalisation de revêtements routiers
DE102010053406A1 (de) * 2010-12-06 2012-06-06 Joachim Eberhardt Verfahren zur Herstellung und zum Einbau eines zum Kalteinbau geeigneten Asphaltbaustoffes sowie entsprechender Asphaltbaustoff
WO2018055314A2 (fr) 2016-09-26 2018-03-29 Eurovia Procede d'indentation d'un echangeur thermique recyclable a haute cadence dans une infrastructure terrestre
WO2021228895A1 (en) 2020-05-11 2021-11-18 Eurovia Cationic latex modified hydrocarbon binder emulsions and their use in the preparation of bituminous products
WO2022208035A1 (fr) 2021-04-02 2022-10-06 Vinci Construction Liants bitumineux offrant une resistance accrue aux agressions chimiques
WO2023135400A1 (fr) 2022-01-17 2023-07-20 Vinci Construction Composition de liant clair et ses applications pour les revetements routiers et d'amenagement
WO2023166264A1 (fr) 2022-03-02 2023-09-07 Vinci Construction Procédé de fabrication d'une couche de revêtement routier à base d'enrobé hydrocarboné à froid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2122C2 (ro) * 2002-05-02 2003-09-30 Сергей ДЫЛДА Procedeu de obtinere a bitumului

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2623219A1 (fr) 1987-11-17 1989-05-19 Maheas Rene Methode pour fabriquer a froid des enrobes denses bitumineux stockables
EP0524031A1 (de) * 1991-07-19 1993-01-20 Colas S.A. Verfahren zur Herstellung von bitumenumhüllten dichten Stoffen
WO1993009295A1 (en) * 1991-10-30 1993-05-13 Leo Hove A method of preparing an emulsion- or asphalt-concrete for use as a road material
FR2701406A1 (fr) * 1993-02-12 1994-08-19 Colas Sa Procédé pour la réalisation d'un mélange formé d'un agrégat et d'un liant.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2623219A1 (fr) 1987-11-17 1989-05-19 Maheas Rene Methode pour fabriquer a froid des enrobes denses bitumineux stockables
EP0524031A1 (de) * 1991-07-19 1993-01-20 Colas S.A. Verfahren zur Herstellung von bitumenumhüllten dichten Stoffen
WO1993009295A1 (en) * 1991-10-30 1993-05-13 Leo Hove A method of preparing an emulsion- or asphalt-concrete for use as a road material
FR2701406A1 (fr) * 1993-02-12 1994-08-19 Colas Sa Procédé pour la réalisation d'un mélange formé d'un agrégat et d'un liant.

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2847596A1 (fr) 2002-11-21 2004-05-28 Demeter Technologie Sa Procede de fabrication, notamment a froid, d'un enrobe, et enrobe obtenu par la mise en oeuvre de ce procede
US7114875B2 (en) 2003-04-18 2006-10-03 Htp Est Method and apparatus for laying hot blacktop paving material
US7114843B2 (en) 2003-07-21 2006-10-03 Htp Est Method of manufacturing a bituminous coated aggregate mix
WO2011151387A1 (fr) 2010-06-04 2011-12-08 Eurovia Procédé de fabrication d'enrobés hydrocarbonés à froid, enrobés hydrocarbonés à froid à maniabilité contrôlée et leur utilisation pour la réalisation de revêtements routiers
FR2960890A1 (fr) * 2010-06-04 2011-12-09 Eurovia Procede de fabrication d'enrobes hydrocarbone a froid, enrobes hydrocarbones a froid a maniabilite controlee et leur utilisation pour la realisation de revetements routiers
US8926741B2 (en) 2010-06-04 2015-01-06 Eurovia Process for manufacturing cold bituminous mixes, cold bituminous mixes with controlled workability and use thereof for producing road pavements
DE102010053406A1 (de) * 2010-12-06 2012-06-06 Joachim Eberhardt Verfahren zur Herstellung und zum Einbau eines zum Kalteinbau geeigneten Asphaltbaustoffes sowie entsprechender Asphaltbaustoff
DE102010053406B4 (de) * 2010-12-06 2014-06-12 Joachim Eberhardt Verfahren zur Herstellung und zum Einbau eines zum Kalteinbau geeigneten Asphaltbaustoffes sowie entsprechender Asphaltbaustoff
WO2018055314A2 (fr) 2016-09-26 2018-03-29 Eurovia Procede d'indentation d'un echangeur thermique recyclable a haute cadence dans une infrastructure terrestre
US10711413B2 (en) 2016-09-26 2020-07-14 Eurovia Method for the high speed indentation of a recyclable heat exchanger in a land-based infrastructure
WO2021228895A1 (en) 2020-05-11 2021-11-18 Eurovia Cationic latex modified hydrocarbon binder emulsions and their use in the preparation of bituminous products
WO2022208035A1 (fr) 2021-04-02 2022-10-06 Vinci Construction Liants bitumineux offrant une resistance accrue aux agressions chimiques
FR3121444A1 (fr) 2021-04-02 2022-10-07 Eurovia Liants bitumineux offrant une résistance accrue aux agressions chimiques
WO2023135400A1 (fr) 2022-01-17 2023-07-20 Vinci Construction Composition de liant clair et ses applications pour les revetements routiers et d'amenagement
FR3131920A1 (fr) 2022-01-17 2023-07-21 Eurovia Composition de liant clair et ses applications pour les revêtements routiers et d’aménagement
WO2023166264A1 (fr) 2022-03-02 2023-09-07 Vinci Construction Procédé de fabrication d'une couche de revêtement routier à base d'enrobé hydrocarboné à froid
FR3133202A1 (fr) 2022-03-02 2023-09-08 Eurovia Procédé de fabrication d’enrobés hydrocarbonés à froid et enrobés hydrocarbonés à froid à montée en cohésion rapide

Also Published As

Publication number Publication date
HU9603542D0 (en) 1997-02-28
IS4402A (is) 1997-06-29
FR2743095B1 (fr) 1998-03-20
FR2743095A1 (fr) 1997-07-04
HUP9603542A2 (en) 1997-09-29
PT781887E (pt) 2002-12-31
HUP9603542A3 (en) 1998-03-02
DE69622981T2 (de) 2003-04-30
ES2179921T3 (es) 2003-02-01
EP0781887B1 (de) 2002-08-14
ATE222310T1 (de) 2002-08-15
PL317701A1 (en) 1997-07-07
RO116411B1 (ro) 2001-01-30
DE69622981D1 (de) 2002-09-19
CZ383496A3 (en) 1997-07-16
DK0781887T3 (da) 2002-12-09

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