WO1999010600A1 - Armature de renforcement de structures routieres, notamment en bitume - Google Patents
Armature de renforcement de structures routieres, notamment en bitume Download PDFInfo
- Publication number
- WO1999010600A1 WO1999010600A1 PCT/FR1998/001824 FR9801824W WO9910600A1 WO 1999010600 A1 WO1999010600 A1 WO 1999010600A1 FR 9801824 W FR9801824 W FR 9801824W WO 9910600 A1 WO9910600 A1 WO 9910600A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reinforcement
- grid
- nonwoven
- road structures
- deposited
- Prior art date
Links
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
- E01C11/00—Details of pavings
- E01C11/16—Reinforcements
- E01C11/165—Reinforcements particularly for bituminous or rubber- or plastic-bound pavings
Definitions
- the present invention relates to the technical sector of public works, more precisely that of the construction and maintenance of roads, motorways, roadways, roadways and the like.
- the roads are coated with a layer of hydrocarbon materials often called “coated”, or “bituminous concrete", this product coming from an oil residue (asphalt).
- the pavements are in the general case (but not limiting) constituted by the support, in general a “coated”, an emulsion layer above the support, as a bonding layer, a reinforcement of the type of 'invention above, and finally a new layer of asphalt about 4 to about 25 cm thick, in one or more layers separated by a thin layer of bonding emulsion.
- ROADTEX and "ROTAFLEX” (brands of the company CHOMARAT) are known.
- ROADTEX type structures consist of an open grid of continuous glass filaments linked by a thermoplastic polymer.
- ROTAFLEX type structures consist of a polyester nonwoven reinforced with a glass grid.
- Patent EP 0 368 600 (Netlon Ltd.) describes a two-layer structure comprising:
- a mesh grid above in particular made of polypropylene, and comprising a thick nodule and not oriented at each junction of strands, and
- an aqueous bitumen emulsion is deposited on the road, then the two-layer structure, then a new layer of bitumen. It is specified that the polypropylene of the grid undergoes a heat treatment during manufacture, to avoid shrinkage during the thermal shock caused by the deposition temperature of the mix.
- the laminate is characterized in that the fabric is combined with the plastic mesh only at the thicker junctions of the mesh and not at the strands of the mesh.
- EP 0 318 707 (Bay Mills Ltd.) is also known, which describes a frame for road surfaces, comprising:
- this adhesive coating can be activated by heat or pressure and forms a bond between the grid and the asphalt.
- This adhesive does not, however, bond the two layers of asphalt on both sides of the grid, which may also be suitable for certain road applications.
- Patent USP 3,581,631 (Enka Corp.) describes an armature which consists of a film comprising threads or filaments, forming meshes which are completely or partially clogged with an adhesive.
- This adhesive is chosen from certain resins and certain polymers having a softening point greater than 50 ° C. and is cast hot on the film. The adhesive, on the one hand wets and "impregnates" the film, and on the other hand is miscible with the bitumen layer.
- the first problem is the need to perfectly bond the different layers forming the structure, that is to say the support (often a mix), the reinforcement and, in general, a top layer (often a mix applied hot to the whole).
- Bitumen emulsions are manufactured in a plant, and consist of liquid or semi-liquid aqueous emulsions applicable by conventional equipment. These emulsions can break as well in 5 minutes as in several hours, depending in particular on the temperature prevailing on the application site. The quality of the bitumen is best adapted to the season and the region, but we cannot produce a different batch for each site temperature.
- the object of the invention is to limit the rise of bitumen through the mesh of grid-type reinforcements.
- bitumen With a grid product such as ROADTEX, a conventional emulsion layer (water and bitumen in a weight ratio of approximately 40 - 60%) is deposited at the rate of approximately 500 g emulsion / m 2 , ie approximately 300 g / m 2 of "residual bitumen". With a grid + nonwoven product such as ROTAFLEX 833, a nonwoven at 80 g / m 2 is used . We must then go up to about 500 g / m 2 of residual bitumen, because it is necessary to impregnate the nonwoven.
- an objective is to be able, despite a complex structure comprising a nonwoven, to reduce the rate of residual bitumen to values of 300 g / m 2 or even 200 g / m 2 , that is to say - say below the usual dosages of the bonding layers. This reduction contributes to the reduction of the bitumen rise.
- the invention resides in the combined use of a fusible product.
- the invention accelerates thanks to a basic treatment the speed of breakage or rupture of the bitumen emulsion, which reduces the downtime of the site and the rise of the bitumen (which is viscous) through the grid.
- the invention applies to any road structure in the broad sense, including areas, runways, airports, etc. comprising at least one hydrocarbon binder, in particular so-called bituminous structures, in particular, but for illustrative purposes only, structures comprising at least minus one layer of asphalt or asphalt.
- the invention relates to a complex reinforcement for road surfacing of the coated or asphalt type, which comprises:
- a fusible product being interposed between the nonwoven and the grid so as to only partially cover the surface.
- the invention therefore provides a three-layer structure where the nonwoven is only partially clogged with the fusible product in order to limit the rise of the bitumen.
- the fusible product fulfills a second function, that of a bonding layer for the final bitumen layer (hot-coated) which will be applied subsequently to the assembly, which makes it possible to significantly reduce the dosage of the bitumen emulsion.
- a preferred manufacturing process consists in preparing the fine nonwoven, and in "sprinkling" the fusible on the nonwoven.
- dust is meant the fact that, by any means of application known to those skilled in the art, the fusible is deposited so as to cover only part of the surface of the nonwoven. The dusting should be as regular as possible, but perfect regularity is not necessary.
- part of the surface is meant the fact that about 30 to 70% of the surface of the nonwoven is covered.
- fine nonwoven is meant a nonwoven of the order of 20 to 80, preferably 20 to 50, preferably 20 to 30 g / m 2 .
- the fusible product will be an EVA (ethylene / vinyl acetate) copolymer.
- the grid is then deposited on the face of the nonwoven having received the fusible.
- the complex according to the invention is placed in such a way that the grid forms the lower face and the nonwoven the upper face.
- the grid / nonwoven assembly traps an air film which will act as a thermal shield against the cold temperature of the lower support, and will therefore optimize the melting of the EVA by the heat provided by the deposition of the upper asphalt layer.
- the nonwoven will preferably be a fine hydrophobic nonwoven, of the polyester or polypropylene type, or glass nonwoven, in particular at about 20 - 50 g / m 2 , or even up to 80 g / m 2 .
- the nonwovens of the prior art are used at around 120 g / m 2 .
- This nonwoven must degrade mechanically by puncturing by the aggregates contained in the mix, due to gravity and compaction (see Fig. 3).
- the fine nonwoven degrades in the event of an open grid; in the case of a tight grid, the nonwoven will be thicker and will be less degraded, or will not be degraded.
- open grid is meant a grid with a wide mesh with respect to the granules contained in the upper asphalt layer.
- the grid will preferably be a grid of glass filaments:
- the mesh of the products will preferably be 5 x 5 mm;
- the invention also relates to a method and an armature making it possible to break the bitumen emulsion more quickly.
- one or more of the elements constituting the complex are brought to a basic pH, that is to say that the grid and / or the nonwoven and / or the fusible is carried, at basic pH.
- the structure according to the invention will be impregnated, either the grid / nonwoven assembly, or, very preferably, the nonwoven deposited on the grid, with a basic agent.
- the basic agent will be any agent or mixture of agents capable of giving the structure a basic character sufficient to significantly accelerate the "breakage" of the emulsion, such as for example the soda ash.
- the emulsion can thus be "broken” almost instantly or instantly. This additional measure saves the site a lot of time during implementation, in particular by not making the teams wait unnecessarily.
- Any basic agent or any mixture of basic agents capable of, or adapted to, meet the criterion of breakage of the emulsion may be used. Such products will be within the reach of the skilled person.
- the basic agent On contact with the bitumen layer deposited on the support, the basic agent acts on the emulsion and effectively, simply and practically causes this emulsion to break or break. Without wishing to be bound by any theory, the Applicant considers that the basic agent deactivates the acid sites of the surfactants used to maintain the stability of the emulsion.
- FIG. 1 schematically shows a sectional view of a representative road structure
- FIG. 2 schematically shows a sectional view of a road structure comprising the frame according to the invention. This figure is intended to represent the order in which the various elements are positioned. The final structure obtained is shown in Figure 3.
- FIG. 3 schematically represents in section the final structure obtained when the elements of the invention are available in accordance with FIG. 2.
- ground base layer consisting of flattened compacted pebbles
- FIG. 1 describes a conventional road structure when a reinforcement is incorporated.
- a thin bonding layer (emulsion) 3 is deposited, then a coating layer 4 which forms the "serious bitumen".
- This layer will receive the wearing course 5 which consists, in its simplest form, of a thin layer of emulsion 6 on which the reinforcement 7 is placed, after which the final coated layer 8 is deposited.
- One or more layers of asphalt 8 superimposed on the grid are applied, depending on the type of road structure.
- the the highest asphalt layer is called the wearing course.
- the asphalt layers are then bonded together by a thin bonding layer of the layer 6 type.
- the invention also applies to such variants.
- FIG. 2 represents the order of arrangement of the elements according to the invention.
- the bonding emulsion 6 is deposited on the serious bitumen 4.
- This emulsion in accordance with an important advantage of the invention, will preferably be dosed at only 200 - 300 g of residual bitumen per m 2 .
- the complex 7 according to the invention is then deposited, for example manufactured as described above.
- This complex consists of the grid 22 and the fine nonwoven 20, the latter carrying on its underside the fusible 21.
- the coated layer 8 is then deposited (or the first layer if there must be several), which contains pebbles 23.
- the temperature means that the water of the emulsion 6 can escape.
- FIG. 3 represents the final state of the road structure, after the sequence shown in FIG. 2. It can be seen that the stones 23 of the asphalt 8 have penetrated between the strands of the grid 22, through the fine nonwoven 20 , and if necessary by tearing it, possibly until it comes into contact with the bonding layer 6 which has itself been at least softened by the heat and therefore has been at least partially integrated into the assembly. It has not been possible in practice to represent the fusible 21 which has melted and has been integrated into the assembly at the level, substantially, of the nonwoven. The whole forms a structure of which all the layers are perfectly integral.
- the invention also relates to a method of reinforcing road structures, characterized in that it is deposited on the layer bitumen emulsion covering the serious bitumen, a reinforcement as described above, then a coating layer, and also, as a particular variant of implementation, the method of reinforcing road structures described above, characterized in that one or more upper layers of asphalt are deposited, each layer being linked by an intermediate layer of bitumen emulsion.
- the invention relates in particular, according to a preferred embodiment, the method of reinforcing road structures which consists in unwinding the complex prefabricated reinforcement according to the invention on the emulsion layer covering the serious bitumen.
- the various elements of the complex framework can also be unrolled separately on the site.
- the nonwoven may have been previously impregnated with a basic agent, or may contain a basic agent in the mass. It is also possible to incorporate the basic agent into the fusible deposited on the nonwoven.
- a basic agent can be deposited on the grid or on the nonwoven as and when it is unrolled.
- the invention also relates to a method for reinforcing road structures, characterized in that at least one layer of asphalt is deposited on the reinforcement, or characterized in that several layers of asphalt are deposited on the reinforcement, each layer being separated by a bonding layer of bitumen emulsion.
- the invention also relates to a method for reinforcing road structures, characterized in that a 200 to 300 g / m 2 emulsion of residual bitumen is used as the lower bonding layer of bitumen emulsion.
- the invention also relates to a method of reinforcing road structures according to which a nonwoven is used (possibly alone on certain sites) or any type of a complex frame of the grid type, possibly comprising a nonwoven or a structure.
- a nonwoven is used (possibly alone on certain sites) or any type of a complex frame of the grid type, possibly comprising a nonwoven or a structure.
- analogous characterized in that said nonwoven is worn, or one or more of the elements constituting the complex of the type grid at a basic pH capable of accelerating the breakage or rupture of the lower bitumen emulsion.
- all the applicable variants of the invention may be implemented, in whole or in part, by adapting them to the nonwoven or to the type of complex reinforcement used.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Bridges Or Land Bridges (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69827398T DE69827398D1 (de) | 1997-08-25 | 1998-08-20 | Verstärkungsgewebe für strassenbaukonstruktionen, insbesondere aus asphalt |
AU90773/98A AU748483B2 (en) | 1997-08-25 | 1998-08-20 | Grid-type reinforcement for strengthening road structures, in particular made of bitumen |
BR9811358-5A BR9811358A (pt) | 1997-08-25 | 1998-08-20 | Armação do tipo grade para reforço de estruturas rodoviárias, particularmente de betume |
AT98942757T ATE281564T1 (de) | 1997-08-25 | 1998-08-20 | Verstärkungsgewebe für strassenbaukonstruktionen, insbesondere aus asphalt |
CA002301741A CA2301741A1 (fr) | 1997-08-25 | 1998-08-20 | Armature de renforcement de structures routieres, notamment en bitume |
EP98942757A EP1012395B1 (fr) | 1997-08-25 | 1998-08-20 | Armature de renforcement de structures routieres, notamment en bitume |
PL98339007A PL339007A1 (en) | 1997-08-25 | 1998-08-20 | Mesh-type reinforcement for use in reinforcing road paving structures in particular asphaltic ones |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9710735A FR2767543B1 (fr) | 1997-08-25 | 1997-08-25 | Armature du type grille pour le renforcement de structures routieres, notamment en bitume |
FR97/10735 | 1997-08-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999010600A1 true WO1999010600A1 (fr) | 1999-03-04 |
Family
ID=9510551
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/001824 WO1999010600A1 (fr) | 1997-08-25 | 1998-08-20 | Armature de renforcement de structures routieres, notamment en bitume |
PCT/FR1998/001833 WO1999010601A1 (fr) | 1997-08-25 | 1998-08-21 | Armature de renforcement de structures routieres, notamment en bitume |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/001833 WO1999010601A1 (fr) | 1997-08-25 | 1998-08-21 | Armature de renforcement de structures routieres, notamment en bitume |
Country Status (9)
Country | Link |
---|---|
EP (2) | EP1012395B1 (fr) |
AT (1) | ATE281564T1 (fr) |
AU (2) | AU748483B2 (fr) |
BR (1) | BR9811358A (fr) |
CA (1) | CA2301741A1 (fr) |
DE (1) | DE69827398D1 (fr) |
FR (1) | FR2767543B1 (fr) |
PL (1) | PL339007A1 (fr) |
WO (2) | WO1999010600A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6648547B2 (en) * | 2001-02-28 | 2003-11-18 | Owens Corning Fiberglas Technology, Inc. | Method of reinforcing and waterproofing a paved surface |
US7207744B2 (en) | 2001-02-28 | 2007-04-24 | Owens Corning Fiberglas Technology, Inc. | Mats for use in paved surfaces |
US7059800B2 (en) | 2001-02-28 | 2006-06-13 | Owens Corning Fiberglas Technology, Inc. | Method of reinforcing and waterproofing a paved surface |
US8043025B2 (en) | 2001-02-28 | 2011-10-25 | Owens Corning Intellectual Capital, Llc | Mats for use in paved surfaces |
PL127009U1 (pl) * | 2018-02-09 | 2019-08-12 | Zikmund Rakowski | Warstwa wewnętrzna asfaltowych nawierzchni lub powierzchni drogowych |
CN108705653B (zh) * | 2018-07-24 | 2021-12-03 | 辽宁科技大学 | 一种路面板制作设备及该设备制作复合块料路面板的方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3821785A1 (de) * | 1988-06-28 | 1990-01-11 | Lentia Gmbh | Selbstklebende kombinationsbahn zur vorbeugung und sanierung von rissen insbesondere in asphalt- und betonflaechen |
EP0368600A1 (fr) * | 1988-11-07 | 1990-05-16 | Netlon Limited | Surface pavée et armée et son armature |
EP0413295A1 (fr) * | 1989-08-16 | 1991-02-20 | Hoechst Aktiengesellschaft | Geotextile pour l'armature de couches à asphalte |
FR2710352A3 (fr) * | 1993-09-23 | 1995-03-31 | Chomarat & Cie | Matériau complexe pour le renforcement de chaussées en bitume notamment. |
FR2716905A1 (fr) * | 1994-03-03 | 1995-09-08 | Chomarat & Cie | Procédé de réalisation d'un matériau complexe pour le renforcement de chaussées en bitume notamment. |
FR2738264A1 (fr) * | 1995-09-05 | 1997-03-07 | Recanati Henri Georges | Procede de traitement des fibres de verre pour leur utilisation avec de l'emulsion de bitume en technique routiere |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL155609B (nl) | 1968-05-15 | 1978-01-16 | Ir Jan Lievense | Werkwijze voor het vervaardigen van een met een wijdmazig weefsel versterkte bitumenlaag. |
FR2592411B1 (fr) | 1985-12-26 | 1988-02-12 | Rhone Poulenc Fibres | Perfectionnement au procede et moyen pour la protection des revetements des chaussees contre l'amorcage des fissurations |
US4957390A (en) | 1987-11-04 | 1990-09-18 | Bay Mills Limited | Reinforcements for asphaltic paving, processes for making such reinforcements, and reinforced pavings |
FR2635542B1 (fr) | 1988-08-19 | 1992-02-28 | Screg Routes & Travaux | Procede de fabrication in situ d'une membrane routiere armee de fils continus et dispositif utilisable pour ce procede |
FR2713253B3 (fr) * | 1993-12-02 | 1995-09-29 | Chomarat & Cie | Matériau complexe pour le renforcement de chaussées en bitume notamment. |
-
1997
- 1997-08-25 FR FR9710735A patent/FR2767543B1/fr not_active Expired - Fee Related
-
1998
- 1998-08-20 EP EP98942757A patent/EP1012395B1/fr not_active Expired - Lifetime
- 1998-08-20 AU AU90773/98A patent/AU748483B2/en not_active Ceased
- 1998-08-20 WO PCT/FR1998/001824 patent/WO1999010600A1/fr active IP Right Grant
- 1998-08-20 AT AT98942757T patent/ATE281564T1/de not_active IP Right Cessation
- 1998-08-20 PL PL98339007A patent/PL339007A1/xx unknown
- 1998-08-20 BR BR9811358-5A patent/BR9811358A/pt not_active Application Discontinuation
- 1998-08-20 DE DE69827398T patent/DE69827398D1/de not_active Expired - Lifetime
- 1998-08-20 CA CA002301741A patent/CA2301741A1/fr not_active Abandoned
- 1998-08-21 WO PCT/FR1998/001833 patent/WO1999010601A1/fr not_active Application Discontinuation
- 1998-08-21 AU AU90780/98A patent/AU9078098A/en not_active Abandoned
- 1998-08-21 EP EP98942766A patent/EP1009879A1/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3821785A1 (de) * | 1988-06-28 | 1990-01-11 | Lentia Gmbh | Selbstklebende kombinationsbahn zur vorbeugung und sanierung von rissen insbesondere in asphalt- und betonflaechen |
EP0368600A1 (fr) * | 1988-11-07 | 1990-05-16 | Netlon Limited | Surface pavée et armée et son armature |
EP0413295A1 (fr) * | 1989-08-16 | 1991-02-20 | Hoechst Aktiengesellschaft | Geotextile pour l'armature de couches à asphalte |
FR2710352A3 (fr) * | 1993-09-23 | 1995-03-31 | Chomarat & Cie | Matériau complexe pour le renforcement de chaussées en bitume notamment. |
FR2716905A1 (fr) * | 1994-03-03 | 1995-09-08 | Chomarat & Cie | Procédé de réalisation d'un matériau complexe pour le renforcement de chaussées en bitume notamment. |
FR2738264A1 (fr) * | 1995-09-05 | 1997-03-07 | Recanati Henri Georges | Procede de traitement des fibres de verre pour leur utilisation avec de l'emulsion de bitume en technique routiere |
Also Published As
Publication number | Publication date |
---|---|
EP1012395B1 (fr) | 2004-11-03 |
AU9078098A (en) | 1999-03-16 |
FR2767543A1 (fr) | 1999-02-26 |
PL339007A1 (en) | 2000-12-04 |
EP1009879A1 (fr) | 2000-06-21 |
EP1012395A1 (fr) | 2000-06-28 |
ATE281564T1 (de) | 2004-11-15 |
AU9077398A (en) | 1999-03-16 |
DE69827398D1 (de) | 2004-12-09 |
WO1999010601A1 (fr) | 1999-03-04 |
AU748483B2 (en) | 2002-06-06 |
BR9811358A (pt) | 2000-08-22 |
FR2767543B1 (fr) | 1999-11-12 |
CA2301741A1 (fr) | 1999-03-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2201095C (fr) | Nouvelle structure de chaussee, realisee a partir de materiaux rigides | |
EP1379732B1 (fr) | Procédé de renforcement et d'imperméabilisation d'une surface pavée | |
WO2017212190A1 (fr) | Filament pour impression 3d, procede de fabrication d'un tel filament, et procede de fabrication d'un objet par impression 3d | |
EP1012395B1 (fr) | Armature de renforcement de structures routieres, notamment en bitume | |
EP0819189B1 (fr) | Procede de fabrication d'un mat de verre et produit en resultant | |
EP3987116B1 (fr) | Renfort de revêtement routier de type enduit superficiel à froid et procédé de fabrication de revêtement routier utilisant un tel renfort | |
FR2767544A1 (fr) | Armature du type grille pour le renforcement de structures routieres, notamment en bitume | |
FR2713253A3 (fr) | Matériau complexe pour le renforcement de chaussées en bitume notamment. | |
FR2688808A1 (fr) | Couche de roulement drainante pour chaussee plus specialement destinee au revetement des bandes d'arret d'urgence des autoroutes ou chaussees a grande vitesse, ainsi que procede d'obtention d'une telle couche de roulement drainante. | |
OA20448A (fr) | Renfort de revêtement routier de type enduit superficiel à froid et procédé de fabrication de revêtement routier utilisant un tel renfort | |
EP1025312B1 (fr) | Structure stabilisee, notamment de type ballast et procede de stabilisation d'une telle structure | |
FR2652617A1 (fr) | ||
FR2710352A3 (fr) | Matériau complexe pour le renforcement de chaussées en bitume notamment. | |
FR2778579A1 (fr) | Nappe multicouche de protection, tapis et dispositif de protection comprenant une telle nappe | |
WO1999053143A1 (fr) | Structure rigide de renforcement et de solidarisation verticale de structures de roulement comme autoroutes ou ponts presentant des joints ou fissures | |
EP0716186A1 (fr) | Procédé d'élaboration de sols renforcés par des additifs fibreux | |
FR2716905A1 (fr) | Procédé de réalisation d'un matériau complexe pour le renforcement de chaussées en bitume notamment. | |
FR2742175A1 (fr) | Melange de materiaux granulaires pour le renforcement des sols et procede d'elaboration | |
WO1994015772A1 (fr) | Dalle composite, moule reutilisable adapte a la fabrication d'une telle dalle et procede de fabrication en continu d'un materiau composite notamment d'un revetement interieur ou exterieur | |
EP0474523A1 (fr) | Procédé de thermorecyclage en place d'une couche de chaussée en enrobés drainants | |
FR2658212A1 (fr) | Revetement ou enduit drainant convenant notamment dans les travaux publics, sa composition et son procede de fabrication. | |
WO2001040569A1 (fr) | Membrane d'étanchéité et procédé de fabrication d'une membrane d'étanchéité | |
WO2017013345A1 (fr) | Matériau de construction composite renforcé | |
EP1403435A1 (fr) | Procédé d'amélioration des qualités de surface d'une voie de circulation et dispositif pour sa mise en oeuvre | |
FR2580990A1 (fr) | Feuille bitumineuse d'etancheite et revetement etanche en comportant application |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BG BR CA CN CZ EE HU IL JP KR LT LV MX NO NZ PL RO RU SG SK TR US VN |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2301741 Country of ref document: CA Ref country code: CA Ref document number: 2301741 Kind code of ref document: A Format of ref document f/p: F |
|
NENP | Non-entry into the national phase |
Ref country code: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1998942757 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 90773/98 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09486314 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 1998942757 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 90773/98 Country of ref document: AU |
|
WWG | Wipo information: grant in national office |
Ref document number: 1998942757 Country of ref document: EP |