EP0457667B1 - Verfahren zur Herstellung einer Fahrbahnabdichtung von Brücken - Google Patents

Verfahren zur Herstellung einer Fahrbahnabdichtung von Brücken Download PDF

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Publication number
EP0457667B1
EP0457667B1 EP91401238A EP91401238A EP0457667B1 EP 0457667 B1 EP0457667 B1 EP 0457667B1 EP 91401238 A EP91401238 A EP 91401238A EP 91401238 A EP91401238 A EP 91401238A EP 0457667 B1 EP0457667 B1 EP 0457667B1
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EP
European Patent Office
Prior art keywords
course
bituminous
approximately
process according
binder
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 - Lifetime
Application number
EP91401238A
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English (en)
French (fr)
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EP0457667A1 (de
Inventor
Maurice Vivier
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.)
Entreprise Jean Lefebvre
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Entreprise Jean Lefebvre
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Filing date
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Application filed by Entreprise Jean Lefebvre filed Critical Entreprise Jean Lefebvre
Publication of EP0457667A1 publication Critical patent/EP0457667A1/de
Application granted granted Critical
Publication of EP0457667B1 publication Critical patent/EP0457667B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
    • E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings

Definitions

  • the present invention relates to a waterproof road coating process for an engineering structure apron.
  • a disadvantage of this type of waterproofing complex is that, during the laying of the first hot mix carpet (constituting the wearing course) on the upper bituminous layer, even sanded, it melts and percolates from bottom to top at the base of this carpet, so that its thickness decreases sharply until almost completely disappears if the temperature of the mix is excessive.
  • the ability to avoid the propagation of ascending or descending cracks is then considerably reduced, because a coated mat, even highly enriched with bituminous binder at its base, is obviously less deformable than a layer of pure binder.
  • the present invention aims to remedy this drawback and improve the tightness of the complex of patent 2614048, which is particularly useful for engineering structures subjected to significant thermal stresses, in particular for engineering structures in the high mountains.
  • the upper layer of cold-cast mix consists of a bituminous emulsion binder and an aggregate, the maximum particle size of which remains less than approximately 10 mm.
  • the cold-cast mix of the upper layer contains from about 6 to about 20 parts of residual binder.
  • the aggregate of the upper layer of cold-cast mix is preferably crushed sand.
  • the upper layer of cold-poured asphalt constitutes a heat shield preventing any rise in the bituminous binder of the intermediate layer, in the first hot-mix asphalt applied on the complex.
  • the upper layer of cold-poured asphalt can be in the form of a single layer, or a bilayer.
  • the aggregate is preferably a continuous crushed 0/6 or 0/10.
  • a two-layer preferably a continuous sand 0/4 or 0/6, or a discontinuous sand 0/6.
  • a discontinuous particle size 0/6 or 0/10 is preferably used, or a continuous particle size 0/10.
  • the thickness of the cold-cast mix layer is advantageously between 3 and 12 mm. It is essentially a function of the grain size of the sand. Thus, for a 0/2 sand, the thickness is of the order of 3 to 5 mm; for 0/4 sand, it is 5 to 7 mm; for 0/6 sand, it is 7 to 10 mm.
  • a filler can optionally supplement the particle size of the aggregates such as for example a crushed rock powder, preferably limestone, cement, natural or artificial rock fibers, or even organic fibers.
  • the filler content is less than 10% by weight relative to the aggregate.
  • the bituminous binder of the upper layer of cold-cast mix contains essentially a bitumen.
  • the bitumen can be chosen from pure bitumens, preferably from bitumens of grades 60/70 and 80/100.
  • the bitumen used can also be a bitumen modified by the addition of thermoplastic copolymers, either by direct hot mixing of pure bitumen and of copolymers, or by indirect cold mixing of emulsion of pure bitumen and of aqueous dispersion of copolymers at the time of manufacture of the mix to be poured.
  • thermoplastic copolymers ethylene vinyl acetate (EVA) or styrene butadiene styrene styrene (SBS) or ethylene methacrylate (EMA) copolymers will be used.
  • EVA ethylene vinyl acetate
  • SBS styrene butadiene styrene styrene
  • EMA ethylene methacrylate copolymers
  • SBR styrene butadiene rubber block copolymers
  • acrylic copolymers as well as various mixtures of these copolymers.
  • the copolymer content is at most equal to about 5% by weight.
  • the addition of such copolymers has the effect of less rejection on commissioning, a better binder-aggregate bond, increased brine resistance, a reduction in sensitivity to heat and cold, greater cohesion as well as '' better deformability.
  • the bituminous binder of the upper layer of cold-cast mix also contains synthetic fibers.
  • the fibers used are ultra-fine synthetic fibers (a few decitex) and relatively long (4 to 8 mm). They are chosen according to the elastic modulus of the material of which they are made, in order to obtain a fibrous mix whose deformability is compatible with that of the support on which it will be applied. Low modulus fibers will be used for the most deformable structures.
  • the proportion of fibers is advantageously between 0.05 and 3% by weight. This proportion can be very low, but given the extreme fineness of these fibers, their number per square meter of asphalt poured is considerable, as well as the length of the network that they constitute.
  • the addition of fibers to the bituminous binder is particularly desirable when this binder contains an aggregate whose particle size is discontinuous.
  • the aggregate of the lower layer of hot mix can consist, for example, of a mixture of crushed or ground sand of grain size 0-2, rolled sand of grain size 0-2 to 0-4, and crushed sand of grain size 2 -4. You can use a mortar with grain size 0-2 or a micro-gravel with grain size 0-6.
  • bituminous binder used for the lower layer of hot mix can be chosen from the bituminous binders described above for the upper layer of cold poured mix. Preferably about 8 to about 11 parts by weight of binder are used, per 100 parts by weight of aggregate.
  • the thickness of the lower layer of hot mix will preferably be between approximately 2 and approximately 4 cm.
  • This first layer makes it possible to reprofile the structure to be covered and to ensure a first seal.
  • a mortar of the type described above has a compactness of 96 to 98%. Permeability tests were carried out using an EDF permeameter. The coefficient is less than 10 ⁇ 1 meters / second. This layer is therefore waterproof.
  • the bituminous binder of the intermediate layer essentially contains a bitumen.
  • the bitumen can be chosen from pure bitumens, preferably from hard grade bitumens, by example of grade 40/50 or 20/30 or 10/20.
  • the bitumen may advantageously be a bitumen modified by the addition of a macromolecular compound, for example an ethylene-vinyl acetate copolymer (EVA) or a styrene-butadiene-styrene copolymer (SBS).
  • EVA ethylene-vinyl acetate copolymer
  • SBS styrene-butadiene-styrene copolymer
  • SBR styrene butadiene rubber block copolymers
  • the maximum content of copolymer is imposed by the limiting viscosity of the modified bitumen to which it flows by a heating and heat-insulated spreading ramp while remaining at a temperature below the degradation temperature of the copo
  • the bituminous binder of the intermediate layer of the complex can also comprise a resin in proportions ranging from approximately 1 to approximately 10% by weight. Particularly preferred resins are terpene resins.
  • the thickness of the bituminous membrane is advantageously between 1 and 5 mm, which corresponds approximately to 1 to 5 kg / m of binder.
  • bituminous membrane may advantageously be coated, in a conventional manner, during a sanding operation, with fine particles, for example with ardoisine or with sanding sand.
  • elastomers allows the complex to be given better cohesion, better elasticity and good adhesiveness to the support.
  • the fact of using the same elastomers in at least two layers out of three makes it possible to limit the number of raw materials and in this way to facilitate the execution of the complex.
  • Composition for the upper layer of cold-cast mix is Composition for the upper layer of cold-cast mix.
  • Mobilplast® sold by the applicant containing 95% by weight of emulsifiable bitumen 80/100, and 5% by weight of an EVA copolymer, was used as bituminous binder.
  • An emulsion was prepared having the following composition, expressed in kg: Mobilplast ® binder 600 emulsifying agent 9 HCl (d-1.19) 2.15 Water 400
  • composition intended to form the layer of cold-cast mix was prepared by kneading the following mixture, in which the proportions are expressed in parts by weight: - mineral mixture 100 games - crushed sand 0/2 mm 99% by weight - CPA 55 cement 1% by weight - dampening water 7.5 - 60% emulsion 25 - pure dope 0.2 - polyester fibers 0.2 - residual binder 15
  • Composition for the upper layer of cold-cast mix is Composition for the upper layer of cold-cast mix.
  • Example 1 The emulsion prepared in Example 1 was used and the following composition was prepared, in the same manner as in Example 1: - mineral mixture 100 games - crushed sand 2/4 mm 34% by weight - crushed sand 0/2 mm 65% by weight - CPA 55 1% by weight - dampening water 8 - 60% emulsion 20 - pure dope 0.2 - polyester fibers 0.2 - residual binder 12
  • composition for the intermediate bituminous layer is composition for the intermediate bituminous layer
  • bitumen about 20/30 80% (by weight) EVA copolymer ⁇ 20% (by weight) dope 0.02 to 0.05% (by weight)
  • Mobilplast® sold by the applicant containing 97% by weight of 80/100 emulsifiable bitumen, and 3% by weight of an EVA copolymer, was used as bituminous binder.
  • An emulsion was prepared having the following composition, expressed in kg: Mobilplast® binder 600 emulsifying agent 9 HCl (d-1.19) 2.15 Water 400
  • composition intended to form the layer of cold-cast mix was prepared by kneading the following mixture, in which the proportions are expressed in parts by weight: - mineral mixture 100 games - crushed 0/6 mm 99% by weight - CPA 55 cement 1% by weight - dampening water 6.5 - 60% emulsion 13 - pure dope 0.2 - polyester fibers 0.2 - residual binder 7
  • Composition for the lower layer of hot mix is Composition for the lower layer of hot mix.
  • the binder is itself constituted as follows: - bitumen 80/100 about 90% - EVA copolymer ⁇ 10% - dope 0.02 to 0.05%
  • Composition for the lower layer of hot mix is Composition for the lower layer of hot mix.
  • composition intended to form the lower layer of hot mix was prepared by kneading the following mixture, in which the proportions are expressed in part by weight: - mineral mixture 100 games - crushed sand 2/4 15% by weight - crushed sand 0/2 70% - rolled sand 0/5 15% - binder 9.7 games
  • the binder is itself composed of:
  • bitumen 80/100 approximately 90% by weight - EVA copolymer 10% - dope 0.02 to 0.05%

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Sealing Material Composition (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Bridges Or Land Bridges (AREA)
  • Tyre Moulding (AREA)
  • Steroid Compounds (AREA)

Claims (11)

  1. Verfahren zur Herstellung eines undurchlässigen Brückenbauwerk-Fahrbahnbelags, bei dem man die folgenden aufeinanderfolgenden Arbeitsgänge durchführt:
    a) direkt auf die Brückenbauwerk-Fahrbahn vergießt man einen Kaltimprägnierungs-Firnis oder eine Haftschicht aus einer speziellen Asphalt-Elastomer-Emulsion;
    b) anschließend stellt man einen Abdichtungs-Verbund her, indem man nacheinander vergießt eine untere Schicht aus einer Heißeinbaudecke, die auf 100 Teile Granulat etwa 8,5 bis 10,5 % eines Asphalt-Bindemittels, das Elastomere enthält, und etwa 11 bis etwa 16 Gew.-% Granulat mit einem Durchmesser von weniger als 80 µm enthält, und dann eine Zwischenschicht, die im wesentlichen aus einem Asphalt-Bindemittel besteht;
    c) gegebenenfalls führt man eine Sandstrahlung der Oberfläche des genannten Verbundes durch;
    d) man vergießt eine Schicht aus einer Kalteinbau-Decke (kalt gegossener Straßenbelag) und dann
    e) vergießt man eine Deckschicht.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Kalteinbau-Decke der oberen Schicht besteht aus einem Asphalt-Bindemittel in Form einer Emulsion und einem Granulat, dessen maximale Dimension der Teilchen unterhalb etwa 10 mm liegt.
  3. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß das Granulat der oberen Schicht aus Kiesbrechsanden ausgewählt wird.
  4. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Kalteinbaudecke der oberen Schicht etwa 6 bis etwa 20 Gew.-Teile restliches Bindemittel auf 100 Gew.-Teile Granulat enthält.
  5. Verfahren nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß das Asphalt-Bindemittel der Decke der unteren Schicht und/oder der oberen Schicht im wesentlichen reinen Asphalt(Bitumen) enthält.
  6. Verfahren nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß das Asphalt-Bindemittel der Decke der unteren Schicht und/oder der oberen Schicht im wesentlichen einen durch Zugabe von thermoplastischen Copolymeren modifizierten Asphalt (Bitumen) enthält.
  7. Verfahren nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß das Asphalt-Bindemittel der Decke der unteren Schicht und/oder der oberen Schicht außerdem synthetische Fasern, insbesondere organische Synthesefasern, enthält.
  8. Verfahren nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet, daß das Asphalt-Bindemittel der mittleren Schicht im wesentlichen reinen Asphalt(Bitumen) enthält.
  9. Verfahren nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet, daß das Asphalt-Bindemittel der mittleren Schicht im wesentlichen einen durch Zugabe von thermoplastischen Copolymeren modifizierten Asphalt enthält.
  10. Verfahren nach den Ansprüchen 1 bis 9, dadurch gekennzeichnet, daß das Asphalt-Bindemittel der mittleren Schicht 1 bis 10 Gew.-Teile eines Harzes enthält.
  11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß das Harz ein Terpenharz ist.
EP91401238A 1990-05-14 1991-05-14 Verfahren zur Herstellung einer Fahrbahnabdichtung von Brücken Expired - Lifetime EP0457667B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9005988 1990-05-14
FR909005988A FR2661928B2 (fr) 1987-04-16 1990-05-14 Complexe d'etancheite d'ouvrage routier et procede pour sa mise en óoeuvre.

Publications (2)

Publication Number Publication Date
EP0457667A1 EP0457667A1 (de) 1991-11-21
EP0457667B1 true EP0457667B1 (de) 1996-01-10

Family

ID=9396582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91401238A Expired - Lifetime EP0457667B1 (de) 1990-05-14 1991-05-14 Verfahren zur Herstellung einer Fahrbahnabdichtung von Brücken

Country Status (9)

Country Link
US (1) US5122009A (de)
EP (1) EP0457667B1 (de)
AT (1) ATE132928T1 (de)
DE (1) DE69116220D1 (de)
DK (1) DK0457667T3 (de)
ES (1) ES2083539T3 (de)
FR (1) FR2661928B2 (de)
GR (1) GR3019488T3 (de)
PT (1) PT97668B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2095156T3 (es) * 1992-09-09 1997-02-01 Prismo Ltd Superficie pavimentada bituminosa simulada.
CA2297989A1 (en) * 1997-07-24 1999-02-04 M. J. Highway Technology Limited Road repair material comprising cement and a resin
EP2192233A1 (de) * 2008-11-27 2010-06-02 Sika Technology AG Verfahren zur Herstellung einer Fahrbahnabdichtung
DE102009007301B4 (de) * 2009-02-03 2013-08-22 Landesbetrieb Straßenbau NRW Gußasphaltmischgut für Fahrbahndeckschichten

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB957091A (en) * 1960-04-26 1964-05-06 Patent & Licensing Corp Improvements in fibrated coatings and in processes for applying such coatings to a surface
FR2365661A1 (fr) * 1976-09-22 1978-04-21 Screg Routes & Travaux Revetement d'etancheite pour ouvrages d'art et son procede de preparation
FR2368580A1 (fr) * 1976-10-20 1978-05-19 Asphaltes Cie Metropolitaine Complexe et procede pour assurer l'etancheite des elements de construction en beton, notamment des ouvrages d'art routiers
GB8409635D0 (en) * 1984-04-13 1984-05-23 Exxon Research Engineering Co Surface dressing of roads
FR2614048B1 (fr) * 1987-04-16 1990-04-06 Lefebvre Jean Ets Complexe d'etancheite d'ouvrage routier et procede de revetement routier etanche de tablier d'ouvrage d'art

Also Published As

Publication number Publication date
DK0457667T3 (da) 1996-05-20
FR2661928B2 (fr) 1992-10-30
EP0457667A1 (de) 1991-11-21
ATE132928T1 (de) 1996-01-15
ES2083539T3 (es) 1996-04-16
US5122009A (en) 1992-06-16
GR3019488T3 (en) 1996-07-31
DE69116220D1 (de) 1996-02-22
FR2661928A2 (fr) 1991-11-15
PT97668A (pt) 1992-03-31
PT97668B (pt) 1999-02-26

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