EP0215139B1 - Procédé de rénovation de surfaces routières - Google Patents

Procédé de rénovation de surfaces routières Download PDF

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Publication number
EP0215139B1
EP0215139B1 EP85111339A EP85111339A EP0215139B1 EP 0215139 B1 EP0215139 B1 EP 0215139B1 EP 85111339 A EP85111339 A EP 85111339A EP 85111339 A EP85111339 A EP 85111339A EP 0215139 B1 EP0215139 B1 EP 0215139B1
Authority
EP
European Patent Office
Prior art keywords
particles
polyolefins
old asphalt
aromatic oil
amorphous polyolefins
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.)
Expired
Application number
EP85111339A
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German (de)
English (en)
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EP0215139A1 (fr
Inventor
Adolf Holly
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.)
WILHELM SCHUETZ KG
Original Assignee
Wilhelm Schuetz KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8193751&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0215139(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wilhelm Schuetz KG filed Critical Wilhelm Schuetz KG
Priority to DE8585111339T priority Critical patent/DE3563463D1/de
Priority to EP85111339A priority patent/EP0215139B1/fr
Priority to AT85111339T priority patent/ATE35296T1/de
Priority to ES556017A priority patent/ES8703559A1/es
Publication of EP0215139A1 publication Critical patent/EP0215139A1/fr
Application granted granted Critical
Publication of EP0215139B1 publication Critical patent/EP0215139B1/fr
Expired 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/065—Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving
    • 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
    • E01C7/187—Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping
    • 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
    • E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
    • E01C7/265—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with rubber or synthetic resin, e.g. with rubber aggregate, with synthetic resin binder

Definitions

  • Bituminous binders have therefore already been modified in order to adapt them to use in the renewal of asphalt surfaces (FR-A-2 559 516). Specifically, the binder is modified with an elastomer in the form of an emulsion or aqueous dispersion and these modified binders are mixed with the old asphalt. Modified bituminous binders are widely known (FR-A-2 200 335, FR-A-2 284 653, "Highways and Public Works" Volume 50, June 1982, pp. 9-11). The amorphous polyolefins of the. Specification according to the invention are not applied.
  • the invention has for its object to provide a method for renewing road surfaces using old asphalt, with which the quality of new road surfaces in terms of durability and grip is achieved and exceeded.
  • the object is achieved in that, before the particles are mixed, amorphous polyolefins are added such that the mixed product is half-hard to soft and tends to stick even at elevated outside temperatures, the amorphous polyolefins as copolymers of ⁇ -olefins with selected monomers have the following parameters: melt viscosity approx. 8000 mPas (measured with the rotary viscometer at approx. 190 ° C), softening point approx.
  • the characterized amorphous polyolefins are commercially available from Chemischen Worken Hüls AG under the name "Vestoplast", the “Vestoplast 708" being particularly suitable.
  • the characterized amorphous polyolefins are available as granules, whereby the surface of the product is provided with a separating agent and with a powder to prevent the granules from caking.
  • "Vestoplast” is intended for the production of hot melt adhesives and hot melts.
  • “Vestoplast” can also be used directly as a laminating adhesive.
  • the amorphous polyolefins are therefore added dissolved in an aromatic oil.
  • the aromatic oil must be compatible with the bitumen.
  • the quality WD3 lubricant has proven to be particularly suitable.
  • the amorphous polyolefins can be dissolved in the aromatic oil at about 100 ° C. and a mixture solution with half polyolefins and half aromatic oils is obtained. This mixture solution should have a waxy consistency at room temperature. The mixture solution is well suited to penetrate the old asphalt and to refresh the aged bitumen and make it more supple.
  • the amorphous polyolefins When mixed with asphalt, the amorphous polyolefins also show good adhesion to the granular components of the pavement, which explains the increased stability of the renewed pavement.
  • a device known per se as shown in FIGS. 1 and 2, can be used.
  • This consists of a chassis 1 with a driver's cab 2 mounted at the rear and a number of devices which are mounted on the chassis.
  • a tank 3 is provided, which is normally provided for receiving bitumen and has heating devices and a line to a mixer 4.
  • a mixed solution of amorphous polyolefins and aromatic oils is filled in, as will be described in more detail in a later section.
  • a heater 5 is provided for the asphalt layer 10 located below.
  • the heating zone 5 is followed by a loosening device 6, which acts as a rigid loosening device or can be designed as a rotating loosener.
  • a feed screw 7 is arranged in the direction of movement.
  • the loosened old asphalt layer is fed to the mixer 4, which is designed as a compulsory mixer, above which a row of nozzles for distributing the mixed solution from the tank 3 is arranged.
  • the mixer 4 the old asphalt particles are thoroughly mixed with the mixed solution and the mixture obtained is fed to a spreading auger 8 in front of a screed 9.
  • the processed material is installed by the auger and the screed in the appropriate width as a new road surface, which is then compacted by a roller, not shown.
  • the "vestoplast” is a mixed product of amorphous polyolefins which can be addressed as copolymers of ⁇ -olefins with selected monomers.
  • the mixed product is semi-hard to soft and is insufficient for gluing even at elevated outside temperatures.
  • "Vestoplast” is supplied in various standard types by Chemische Werke Hüls AG, D-4370 Marl, and "Vestoplast 708" has proven to be particularly suitable for the intended application.
  • the melt viscosity at 190 ° C, measured with the rotary viscometer, is about 8000 mPa s.
  • the softening point measured according to DIN 52011 with a ring and ball, is approximately 105 ° C.
  • the penetration 100/25/5 based on DIN 52010, measured in 0.1 mm, is approximately 20.
  • the breaking point according to Fraass DIN 52012 is approximately -30 ° C. Because of its amorphous character, "Vestoplast” does not have a sharp melting point, but a softening area. As with all thermoplastics, the viscosity of the melt drops with increasing temperature.
  • the mixture solution of "Vestoplast” and "WD-3- ⁇ I was prepared in a heatable tank with an agitator at about 100 ° C.
  • the mixing ratio is about 50:50% by weight, but deviations of ⁇ 10% are easily possible because a thin liquid mixture solution can also be obtained at the specified temperature, which can be atomized into very fine droplets and can therefore be metered well are stored and made thin if necessary in the heatable tank 3.
  • the amount added depends primarily on the binder content of the asphalt, namely the polyolefins should amount to 7 ⁇ 1% by weight of the total binder content in the renewed pavement.
  • This total binder content is composed of the bitumen content found, the polyolefins added and the aromatic oil added, and any bitumen addition required to achieve the desired binder content. If, for example, a binder content of 6% is to be achieved and a bitumen content of 4% is found, there is an addition of about 0.4% by weight of polyolefins, based on the processed asphalt. If aromatic oil was added in approximately the same amount, then about 1.2% of bitumen would have to be added in order to achieve the desired total binder content of 6%. In practice, the amounts of polyolefins added are then about 0.3 to 0.5% by weight of the processed asphalt.
  • the total binder content is therefore the reference basis for the addition of polyolefins, the proportion of which, as stated, should be 7 ⁇ 1% by weight of the total binder content.
  • a proportion of about 14% by weight of the total binder content is then obtained.
  • the process is not limited to processing old asphalt alone. During the reprocessing, minerals or finished mix can be added to the asphalt if there are reasons for this.
  • the mixture solution of the polyolefins and the aromatic oils is sprayed onto the roadway to be renewed, which was previously heated.
  • the roadway to be renewed is milled off, and as a result, as well as a downstream whirler, the particles generated are mixed intensively with the mixed solution.
  • the screed With the screed, the material is evenly installed and subsequently compacted in a known manner using rollers.
  • the polyolefins can also be applied as fine granules to the highly heated surface of the roadway to be renewed and can be mixed intensively by subsequent milling and whirling or even in a compulsory mixer.
  • aromatic oil can also be added to refresh the aged bitumen.

Claims (6)

1. Procédé de rénovation de surfaces routiéres, en particulier de surfaces déformées, utilisant l'asphalte ancien et suivant lequel:
- la surface routière à rénover avec sa couche d'asphalte ancien (10) est chauffée;
- la couche d'asphalte ancien (10) chauffée est disloquée et les particules ainsi obtenues sont réparties uniformément sur la largeur à traiter, ce qui entraîne un mélange desdites particules;
- les particules réparties dans la nouvelle couche sont compactées pour obtenir une surface routière;
caractérisé par la mise en oeuvre des phases suivantes:
- on effectue une addition de polyoléfines amorphes avant de mélanger les particules de telle manière que le produit obtenu par ce mélange soit mi-dur à mou et présente déjà une tendance au collage pour des températures ambiants assez élevées, lesdites polyoléfines amorphes étant des copolymères d'oléfines a et de manomères choisis, qui présentent les paramètres caractéristiques suivantes:
- viscosité de fusion d'environ 8000 mPas (mesurée avec le viscosimètre rotatif vers 190°C),
- point de ramollisement d'environ 105°C (mesuré avec bague et bille selon DIN 52011),
- pénétration de 20 (selon DIN 52010),
- point de rupture de -30°C (mesuré selon Fraass, DIN 52012);
la quantité ajoutée est comprise entre 0,3 et 0,5% en poids de l'ancien asphalte à rénover, soit environ 7% de sa teneur totale en liants.
2. Procédé suivant la revendication 1, caractérisé en ce que l'addition des polyoléfines amorphes est réalisée en solution dans une huile aromatique.
3. Procédé suivant la revendication 2, caractérisé en ce que l'on utilise comme huile aromatique un lubrifiant de la qualité WD-3.
4. Procédé suivant l'une revendications 2 ou 3, caractérisé en ce que les polyoléfines amorphes ont été dissoutes à 100°C environ dans l'huile aromatique et en ce que la solution du mélange ainsi obtenu est constituée pour moitié environ desdites polyoléfines d'une part et de ladite huile aromatique d'autre part.
5. Procédé suivant l'une des revendications 2 à 4, caractérisé en ce que la solution du mélange obtenu présente à la température ambiante une consistance analogue à la cire et en ce qu'elle est très fluide à 100°C environ.
EP85111339A 1985-09-07 1985-09-07 Procédé de rénovation de surfaces routières Expired EP0215139B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8585111339T DE3563463D1 (en) 1985-09-07 1985-09-07 Method for renovating road surfaces
EP85111339A EP0215139B1 (fr) 1985-09-07 1985-09-07 Procédé de rénovation de surfaces routières
AT85111339T ATE35296T1 (de) 1985-09-07 1985-09-07 Verfahren zur erneuerung von fahrbahndecken.
ES556017A ES8703559A1 (es) 1985-09-07 1986-06-13 Procedimiento para producir material de revestimiento para firmes de carreteras y similares

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85111339A EP0215139B1 (fr) 1985-09-07 1985-09-07 Procédé de rénovation de surfaces routières

Publications (2)

Publication Number Publication Date
EP0215139A1 EP0215139A1 (fr) 1987-03-25
EP0215139B1 true EP0215139B1 (fr) 1988-06-22

Family

ID=8193751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111339A Expired EP0215139B1 (fr) 1985-09-07 1985-09-07 Procédé de rénovation de surfaces routières

Country Status (3)

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EP (1) EP0215139B1 (fr)
AT (1) ATE35296T1 (fr)
DE (1) DE3563463D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2613737B1 (fr) * 1987-04-09 1991-11-22 Beugnet Sa Procede de regeneration d'un revetement de chaussee vieilli
FR2639375B1 (fr) * 1988-11-18 1993-11-26 Muntzer Emile Regeneration et enrobage a froid de materiaux bitumineux de recyclage
FR2667085B1 (fr) * 1990-09-25 1993-08-13 Screg Routes & Travaux Procede et dispositif de realisation d'une couche d'une chaussee routiere.
CN100339537C (zh) * 2004-08-04 2007-09-26 戴锋 沥青路面压纹和彩色喷涂制成的立体彩色路面施工方法
DE102007039650A1 (de) * 2007-08-22 2009-02-26 Henkel Ag & Co. Kgaa Verklebter Bodenbelag

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2245962C3 (de) * 1972-09-19 1980-11-27 Deutsche Bp Ag, 2000 Hamburg Verfahren zur Herstellung elastifizierter bituminöser Mischungen
NO145385C (no) * 1974-09-13 1982-03-10 Bunzl & Biach Ag Fremgangsmaate for fremstilling av et bituminoest bindemiddel for konstruksjonsmaterialer.
FR2559516A1 (fr) * 1984-02-10 1985-08-16 Regeneration Revetements Routi Perfectionnements a la regeneration des revetements routiers

Also Published As

Publication number Publication date
DE3563463D1 (en) 1988-07-28
EP0215139A1 (fr) 1987-03-25
ATE35296T1 (de) 1988-07-15

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