EP0440562B1 - Mehrschichtiger Strassendeckenbelag gegen Risse - Google Patents
Mehrschichtiger Strassendeckenbelag gegen Risse Download PDFInfo
- Publication number
- EP0440562B1 EP0440562B1 EP91400237A EP91400237A EP0440562B1 EP 0440562 B1 EP0440562 B1 EP 0440562B1 EP 91400237 A EP91400237 A EP 91400237A EP 91400237 A EP91400237 A EP 91400237A EP 0440562 B1 EP0440562 B1 EP 0440562B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- surfacing
- binder
- course
- asphaltic
- 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
Links
Images
Classifications
-
- 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
-
- 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
- E01C11/00—Details of pavings
- E01C11/005—Methods or materials for repairing pavings
-
- 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
- E01C7/262—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 fibrous material, e.g. asbestos; with animal or vegetal admixtures, e.g. leather, cork
Definitions
- the present invention belongs to the field of road surfaces, in particular road surfaces whose seats crack.
- a first improvement consists in interposing a bituminous membrane, having a thickness of 2 to 3 mm, between the wearing course and the support.
- the support In the case of a new roadway, the support consists of gravel treated with hydraulic binders. In the case of an existing cracked roadway comprising gravel treated with hydraulic binders, the support consists of the existing coating as described for example by EP-A-0 216 148.
- the bitumens used for the bituminous membrane can be pure bitumens or bitumens modified by the addition of macromolecular substances.
- a disadvantage of this type of process is that, during the laying of the first hot mix mat on the bituminous membrane, even sandblasted, it melts and percolates from bottom to top at the base of this mat, so that its thickness greatly decreases until it disappears almost completely if the temperature of the mix is excessive. The ability to slow the rise of cracks is then considerably reduced, because a coating of asphalt, even highly enriched with bituminous binder at its base, is obviously less deformable than a layer of pure binder.
- the present inventors have now discovered a new means for preventing reverse percolation of the binder constituting the bituminous membrane during the application of the hot mix forming the wearing course.
- the present invention relates to a new multilayer coating for a roadway, which is intended to slow down or suppress the rise of cracks that may appear in the seat of said roadway.
- the invention also relates to a process for producing this coating.
- the multilayer coating according to the invention comprises a bituminous membrane applied to the seat of the roadway, and a wearing course or a bonding layer. It is characterized in that it also comprises at least one layer of cold-cast mix, between the bituminous membrane and the wearing course or a bonding layer.
- a surfacing layer will be applied to said support, before applying the bituminous membrane.
- the cold-poured asphalt layer consists of a bituminous binder and an aggregate, the maximum particle size of which remains less than approximately 10 mm.
- the aggregate is preferably a crushed sand and more particularly a 0/6, 0/4 or 0/2 sand.
- the thickness of the cold-cast mix layer is 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.
- the cold poured asphalt layer can be a single layer. It can also be a double layer.
- the bituminous binder essentially contains a bitumen.
- bitumen is chosen from pure bitumens, preferably from grades 60/70, 80/100, and 180/220.
- bitumen used can be a bitumen modified by the addition of thermoplastic copolymers, either by direct hot mixing of pure bitumen and of copolymer, or by indirect cold mixing of pure bitumen emulsion and of aqueous dispersion of copolymer at the time of manufacture. of the mix to be poured.
- 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.
- copolymer is at most equal to about 5% by weight.
- the addition of such copolymers has the effect of a 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.
- a mineral 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.
- the mineral filler content is less than 10%.
- the bituminous binder 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 fiber low modulus will be used for the most deformable pavements.
- the proportion of fibers is advantageously between 0.05 and 3% by weight. This proportion may 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.
- bituminous membrane can be applied hot, or spread cold when in the form of a bituminous emulsion.
- bituminous membrane can advantageously be coated, in a conventional manner, during a sanding operation, with fine particles, for example with ardoisine or with sandstone.
- the wearing courses or link layers are not critical. They are produced in a manner known per se, for example in the form of a surface coating, a hot mix or a cold cast mix. In the particular case of an overlying hot mix, the cold-poured asphalt layer constitutes a thermal and mechanical screen opposing the reverse percolation of the membrane in this asphalt.
- the wearing course or bonding layer can also consist of a cold-cast mix containing a modified bitumen to which synthetic fibers have optionally been added.
- the coating according to the present invention can be applied to any pavement support. It is particularly useful for pavements whose support undergoes cracking, whatever the origin of the cracking. These may include active cracks originating from a thermal shrinkage phenomenon.
- the support can, for example, consist of concrete slabs separated by expansion joints.
- the coating is particularly useful for semi-rigid pavements treated with hydraulic binders and for cement concrete pavements.
- the method for producing a multilayer coating according to the invention is characterized in that it consists in applying successively to the roadway, a layer of a bituminous binder spread hot or else cold in the form of an emulsion, a layer of cold-poured asphalt, then a wearing course or a binder course. Each of these layers is applied by conventional methods.
- Examples 1 and 2 are examples of preparation of compositions intended to constitute the layer of cold-cast mix.
- bituminous binder used was Mobilplast® sold by the applicant, containing 95% by weight of 80/100 emulsifiable bitumen, and 5% by weight of an EVA 33/45 copolymer.
- Shrinkage-bending tests were carried out on a test piece reproducing a multi-layer coating of the invention and on test pieces reproducing control coatings.
- the test consists in monitoring the rate of ascent of a crack through the various coatings.
- the progress of the crack is followed by a network of conductive wires.
- the test makes it possible to estimate, under these conditions, different characteristics linked to the efficiency of the complex studied (appearance of the crack, speed of propagation, complete cracking time of the complex).
- FIG. 1 A diagram of the machine used is shown in fig. 1.
- Each plate is sawn to provide three test specimens of dimensions 560 x 110 x e.
- Each test piece receives a network of conductive wires forming part of the crack monitoring system. The test piece is then bonded to two half-plates (made of aluminum) and fixed to the machine according to the diagram in Figure 1.
- a support + complex coating complex according to the invention was studied in the context of this experiment, by comparison with three control complexes. Their constitutions are indicated in Table I below.
- Each curve corresponds to the average behavior of two test pieces.
- the number assigned to each curve is the number of the corresponding sample.
- the test although simulating the stresses to which the road is subjected, can only be interpreted by making comparisons with known control systems.
- the controls used in this study are bituminous concretes at 60/70 directly bonded to their cracked support (samples and curves n ° 1 and 2) and a bituminous concrete system at 60/70 + rich bitumen sand 80/100 itself bonded. on its support (sample and curve n ° 3).
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Road Signs Or Road Markings (AREA)
- Road Repair (AREA)
- Paints Or Removers (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Claims (11)
- Mehrschichtiger Deckenbelag für eine Straße, dazu bestimmt, das Aufsteigen von Rissen zu verlangsamen oder zu unterdrücken, die in der Grundschicht der Straße erscheinen können, aufgebaut aus einer bituminösen Membran, die auf das Bett aufgebracht ist, und einer Deckschicht oder eine Verbindungsschicht, dadurch gekennzeichnet, daß er, zwischen der bituminösen Membran und der Deck- oder Verbindungsschicht, wenigstens eine kaltvergossene Hüllschicht umfaßt.
- Mehrschichtiger Deckenbelag nach Anspruch 1, dadurch gekennzeichnet, daß die bituminöse Membran aus reinem Bitumen oder durch thermoplastische Kopolymere modifiziertes Bitumen aufgebaut ist.
- Mehrschichtiger Deckenbelag nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die kaltvergossene Hüllschicht ein bituminöses Bindemittel und ein Granulat, dessen maximale Abmessung der Teilchen geringer ist als ungefähr 10 mm, enthält.
- Mehrschichtiger Deckenbelag nach Anspruch 3, dadurch gekennzeichnet, daß das Granulat aus den grobzerkleinerten Sanden ausgewählt ist.
- Deckenbelag nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, daß das bituminöse Bindemittel ein reines Bitumen enthält.
- Deckenbelag nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß das bituminöse Bindemittel ein durch Zusatz wenigstens eines Kopolymeres modifiziertes Bitumen enthält.
- Deckenbelag nach Anspruch 6, dadurch gekennzeichnet, daß das Kopolymer aus den Vinyl-Äthylenacetat-Kopolymeren, den dreisequenzigen Styren-Butadien-Styren-Kopolymeren, den zweisequenzigen Styren-Butadien-Gummi (SBR)-Kopolymeren, den Acryl-Kopolymeren ebenso wie ihren Mischungen gewählt ist.
- Deckenbelag nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die kaltvergossene Hüllschicht synthetische Fasern enthält.
- Deckenbelag nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß er eine Oberflächenverbesserungsschicht zwischen dem Träger und der bituminösen Membran aufweist.
- Verfahren zum Herstellen eines Straßendeckenbelages nach einem der Ansprüche 1 bis 9, anstrebend, die Fortpflanzung von Rissen der Betten durch den Deckenbelag zu verlangsamen, dadurch gekennzeichnet, daß es darin besteht, auf das Bett der Straße, das gegebenenfalls mit einer Oberflächenverbesserungsschicht bedeckt ist, aufeinanderfolgend aufzubringen:- eine Schicht aus bituminösem Bindemittel,- kalt eine Schicht einer Zusammensetzung, die ein bituminöses Bindemittel und ein Granulat enthält,- eine Deck- oder Verbindungsschicht.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß die Deck- oder Verbindungsschicht heiß aufgebracht wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9001240A FR2657902B1 (fr) | 1990-02-02 | 1990-02-02 | Revetement multicouche pour chaussees. |
FR9001240 | 1990-02-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0440562A1 EP0440562A1 (de) | 1991-08-07 |
EP0440562B1 true EP0440562B1 (de) | 1993-06-23 |
Family
ID=9393349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91400237A Expired - Lifetime EP0440562B1 (de) | 1990-02-02 | 1991-01-31 | Mehrschichtiger Strassendeckenbelag gegen Risse |
Country Status (9)
Country | Link |
---|---|
US (1) | US5106228A (de) |
EP (1) | EP0440562B1 (de) |
AT (1) | ATE90982T1 (de) |
CA (1) | CA2035362C (de) |
DE (1) | DE69100133T2 (de) |
DK (1) | DK0440562T3 (de) |
ES (1) | ES2042341T3 (de) |
FR (1) | FR2657902B1 (de) |
PT (1) | PT96651A (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2693490B1 (fr) * | 1992-07-07 | 1994-09-02 | Elf Antar France | Système perfectionné anti-remontée de fissures intercalé entre la couche de structure et la couche de roulement d'une chaussée et procédé pour la réalisation d'un tel système. |
FR2716470B1 (fr) * | 1994-02-21 | 1996-05-03 | Screg Routes & Travaux | Procédé de réalisation d'un revêtement routier bitumineux ultra-mince. |
JP3565501B2 (ja) * | 2000-10-04 | 2004-09-15 | 株式会社日本触媒 | 特定組成よりなるアスファルト改質材、改質アスファルト混合物及びその舗装方法 |
EP2425060A4 (de) * | 2009-04-28 | 2014-07-09 | Infrastructure Technologies Ltd | Auskleidung für kanal und wasserspeicher |
DE102013113318A1 (de) * | 2013-12-02 | 2015-06-03 | Sf-Kooperation Gmbh Beton-Konzepte | Erdreichabdeckung und Verfahren zur Herstellung derselben |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR922016A (fr) * | 1945-03-29 | 1947-05-27 | Bataafsche Petroleum | Procédé pour l'obtention ou la réparation des revêtements bitumineux de routes |
GB921936A (en) * | 1960-02-03 | 1963-03-27 | British Cellophane Ltd | Improvements in or relating to roads and the like |
FR2183618A1 (en) * | 1972-05-12 | 1973-12-21 | Mobil Oil France | Road surfacing compsn - contg mixt of bitumen ethylene/vinyl acetate copoly-mer and terpene resin as binder |
CH545378A (de) * | 1972-05-19 | 1973-12-15 | Oleag Ag | Risse überbrückender, isolierender Bodenbelag |
DE2250694A1 (de) * | 1972-10-16 | 1974-04-18 | Us Rubber Reclaiming Co | Belag fuer verkehrsflaechen |
US4151025A (en) * | 1977-06-06 | 1979-04-24 | Triram Corporation | Method for waterproofing bridge decks and the like |
US4545699A (en) * | 1980-08-29 | 1985-10-08 | Owens-Corning Fiberglas Corporation | Primer composition for a laminated repaired road |
US4362586A (en) * | 1980-11-07 | 1982-12-07 | Owens-Corning Fiberglas Corporation | Polyamide as a primer for use with asphaltic membranes |
GB8409635D0 (en) * | 1984-04-13 | 1984-05-23 | Exxon Research Engineering Co | Surface dressing of roads |
AT386028B (de) * | 1985-09-11 | 1988-06-27 | Vialit Gmbh Kaltasphalt | Bituminoeser belag fuer strassen, wege u. dgl., sowie verfahren zur herstellung von im kaltverfahren bituminoes gebundener belaege fuer strassen, wege u. dgl. |
US5026609A (en) * | 1988-09-15 | 1991-06-25 | Owens-Corning Fiberglas Corporation | Road repair membrane |
-
1990
- 1990-02-02 FR FR9001240A patent/FR2657902B1/fr not_active Expired - Fee Related
-
1991
- 1991-01-30 US US07/647,920 patent/US5106228A/en not_active Expired - Lifetime
- 1991-01-31 ES ES199191400237T patent/ES2042341T3/es not_active Expired - Lifetime
- 1991-01-31 CA CA002035362A patent/CA2035362C/fr not_active Expired - Lifetime
- 1991-01-31 EP EP91400237A patent/EP0440562B1/de not_active Expired - Lifetime
- 1991-01-31 DE DE91400237T patent/DE69100133T2/de not_active Expired - Lifetime
- 1991-01-31 AT AT91400237T patent/ATE90982T1/de not_active IP Right Cessation
- 1991-01-31 DK DK91400237.3T patent/DK0440562T3/da active
- 1991-02-01 PT PT96651A patent/PT96651A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE69100133T2 (de) | 1993-09-30 |
DE69100133D1 (de) | 1993-07-29 |
CA2035362C (fr) | 1999-06-29 |
ES2042341T3 (es) | 1993-12-01 |
DK0440562T3 (da) | 1993-08-16 |
PT96651A (pt) | 1991-10-31 |
EP0440562A1 (de) | 1991-08-07 |
ATE90982T1 (de) | 1993-07-15 |
FR2657902B1 (fr) | 1992-07-03 |
US5106228A (en) | 1992-04-21 |
FR2657902A1 (fr) | 1991-08-09 |
CA2035362A1 (fr) | 1991-08-03 |
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