EP0798417B1 - Nouvelle structure de chaussée, réalisée à partir de matériaux rigides - Google Patents
Nouvelle structure de chaussée, réalisée à partir de matériaux rigides Download PDFInfo
- Publication number
- EP0798417B1 EP0798417B1 EP97400612A EP97400612A EP0798417B1 EP 0798417 B1 EP0798417 B1 EP 0798417B1 EP 97400612 A EP97400612 A EP 97400612A EP 97400612 A EP97400612 A EP 97400612A EP 0798417 B1 EP0798417 B1 EP 0798417B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- foundation layer
- bituminous
- structure according
- roadway structure
- 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
- 239000000463 material Substances 0.000 title claims description 43
- 239000010426 asphalt Substances 0.000 claims abstract description 30
- 239000010410 layer Substances 0.000 claims description 141
- 239000011230 binding agent Substances 0.000 claims description 26
- 239000004576 sand Substances 0.000 claims description 17
- 239000004746 geotextile Substances 0.000 claims description 11
- 239000000839 emulsion Substances 0.000 claims description 10
- 239000004567 concrete Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000002344 surface layer Substances 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims 7
- 239000011248 coating agent Substances 0.000 claims 3
- 230000001747 exhibiting effect Effects 0.000 claims 2
- 239000002002 slurry Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 description 11
- 229920000728 polyester Polymers 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- -1 butadiene Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- UDHXJZHVNHGCEC-UHFFFAOYSA-N Chlorophacinone Chemical compound C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)C(=O)C1C(=O)C2=CC=CC=C2C1=O UDHXJZHVNHGCEC-UHFFFAOYSA-N 0.000 description 2
- 241001508691 Martes zibellina Species 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 241001080024 Telles Species 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 241000897276 Termes Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000013521 mastic Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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
- E01C7/185—Isolating, separating or connecting intermediate layers, e.g. adhesive layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions
-
- 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
Definitions
- the present invention relates to a new structure for floor, made from rigid materials.
- these layers can be laid directly on the floor, but also on an untreated material, such as, for example, a serious untreated or a serious reconstituted humidified.
- the new layer or layers of treated materials are placed directly in contact with the upper layer of the old pavement.
- these known techniques relate to roadways semi-rigid, i.e. with a seat layer made from a material treated with binders hydraulic, such as gravel-cements or gravel-slag.
- EP-A-0433 155 describes a method of constructing a pavement comprising from top to bottom: a wearing course, a base course and a bituminous binder enrichment layer, the latter consisting of at least one layer of aggregates and at least one layer of binder dosed at more than 800 g / m 2 .
- the seat layer is of a particular type and has a stiffness modulus between 9.5 to 11.10 3 MPa.
- the enrichment layer is rich in binder, so that it goes up in the seat layer when compaction.
- the goal is to improve fatigue resistance and the impermeability of the roadway.
- EP-A-0041 881 describes bituminous mixtures for road surfaces resistant to cracking and whose stiffness modulus is between 16 and 24.10 3 MPa, using a binder composed of very hard bitumens.
- the object of the present invention is therefore to obtain a pavement comprising a rigid seat layer, which has improved fatigue resistance, i.e. resistance good for heavy loads transmitted by vehicles on the road.
- the Applicant has highlighted the fact that it is surprisingly possible to obtain a good quality pavement with a long service life and can be built on a support even damaged, in incorporating a special layer under the seat layer rigid.
- the stiffness modulus is measured according to the TOTAL 762-94 method.
- the wearing course resting on the rigid seat layer can advantageously be a traditional asphalt, such as concrete bituminous.
- the role of this wearing course is to provide good protection of the structure and, due to its roughness, good grip for vehicles.
- the rigid seat layer of the structure according to the invention has a stiffness modulus greater than or equal to 14.10 3 MPa at 15 ° C and 10 Hz and can be made from bituminous materials of the high modulus coated type, by for example, or based on materials treated with hydraulic binders, such as gravel-cements or gravel-slag.
- This layer The role of this layer is to constitute a good sitting on the floor.
- a base layer constituted by a bituminous mix of the type coated with very high rigidity modulus, developed by Applicant and subject of the patent application French N ° 95 10097.
- This bituminous mix is produced at from a very hard binder, whose penetration at 25 ° C, measured according to standard AFNOR NFT 66-004, is between 0 and 20 and whose asphalt content is greater than 6 parts percent by weight.
- this coated material Due to its very rigid nature, its modulus of rigidity at 25 ° C and 10 Hz being greater than 24.10 3 MPa, this coated material makes it possible to provide the same structural effect as conventional materials, but with much smaller thicknesses, from 5 to 30 cm.
- the layer that is placed under the seat layer must fill the hollows and the reliefs of the ground, material not treated, or the pavement to be reinforced, on which it is supported. This layer must therefore have a thickness sufficient to cover these irregularities, so that form a support for the seat layer with a smooth surface and plane.
- This layer must, in addition, adhere to the base layer of so that the final pavement behaves well mechanical, in particular with regard to mechanical fatigue.
- Adhesion can be natural, if the layer is made at from a sufficiently bituminous material.
- the layer according to the invention which is placed under the seat layer, can be made from several types of materials.
- a first family of usable materials includes: bituminous mixtures, such as, for example, bituminous sand, reshaped mixes, cold mixes or concretes bituminous.
- these materials once implemented, must have a low macroroughness and a good level.
- macroroughness is defined by a sand height less than or equal to 4 mm, and preferably less than or equal to 2mm, measured by the height test of sand according to standard NFP 98-216-1.
- This layer could, for example, be bonded to the base layer with a bonding layer produced from a 70/100 bitumen emulsion, dosed at 300-400 g / m 2 with residual binder.
- a second family of materials that can be used to layer to be placed under the seat layer includes materials flowable bituminous, such as, for example, cold, bituminous grout or mastic asphalt.
- these materials must have a low macroroughness, on the order of that possessed by bituminous mixtures mentioned above.
- the layer made from these bituminous materials pourable is also applied according to standard NFP 98-150, which gives it the desired good uni character.
- Bonding with the base layer is ensured by spreading a bonding layer produced from an emulsion of bitumen 70/100, for example, and at a rate of 200 to 500 g / m 2 in residual binder.
- a third family of materials that can serve as layer to be placed under the seat layer includes non-bituminous materials.
- geotextiles i.e. any tightly woven textile tablecloth, which is produced from natural yarns or fibers or synthetic and that we usually use in road construction and stabilization operations of land.
- the geotextile used according to the invention can be a nonwoven web with a surface mass of between 50 and 500 g / m 2 and formed of continuous filaments based on a polymer such as a polyester, an isotactic polypropylene, a polyamide, a polyacrylonitrile, cellulose acetate, polyvinyl chloride, polyvinylidene chloride or even high density polyethylene.
- a polymer such as a polyester, an isotactic polypropylene, a polyamide, a polyacrylonitrile, cellulose acetate, polyvinyl chloride, polyvinylidene chloride or even high density polyethylene.
- a geotextile consisting of a tightly woven nonwoven fabric formed from continuous filaments based on isotactic polypropylene, or well of a polyester, in particular of polyterephthalate alkylene glycol such as polyethylene terephthalate glycol, or a polyamide, in particular a polycaproamide or a polyhexamethylene adipamide.
- the tablecloth nonwoven formed of continuous filaments based on a polymer can be, in particular, the tablecloth described in one or the other of publications FR-A-1 601 049, FR-A-2 108 145 and FR-A-2 592 411, these publications indicating the method general production of such a tablecloth.
- the geotextile can also be a woven sheet with a surface mass of between 50 and 500 g / m 2 and with a mesh diameter less than or equal to 5 mm, so as to give a smooth character.
- the impregnation rate is between 200 and 800 g / m 2 .
- This impregnation is carried out with hot bitumen or with a bitumen in the form of an emulsion, the penetration of the bitumen at 25 ° C. is between 180 and 220 tenths of a millimeter.
- these non-bituminous materials must have a low macroroughness, of the order that have the bituminous mixtures mentioned above.
- This bonding layer after spreading and breaking the emulsion, is dosed at 200-500 g / m 2 with residual binder.
- This material also fits perfectly, as well for the construction of new pavements as for the reinforcement of existing pavements.
- the layer to place under the seat layer can be laid either directly on the ground, either on untreated material, by example of severe untreated or severe reconstituted type moistened.
- pavement structures not only have a fatigue strength significantly improved compared to prior art structures but they exhibit also the advantage of not requiring an implementation neither complicated nor expensive, since they can be carried out by known conventional means.
- This example concerns a. coated material bituminous, the Applicant of which recommends the use for pavement construction, as a layer to be placed under the rigid foundation layer of the roadway.
- bitumen sand used in the form a hot mix, prepared from a bitumen playing the role of binder whose penetrability at 25 ° C is understood between 35 and 50 tenths of a millimeter.
- the penetrability is measured according to the AFNOR standard NFT 66-004.
- the macroroughness of this bituminous sand is defined by a sand height, according to standard NFP 98-216-1, of the order of 3 mm.
- This bitumen sand has a richness module between 2.8 and 3.0, a bitumen content of 5.2 parts per cent by weight, a particle size between 0 and 6 or between 0 and 10 mm, of the type: % passing Sieve opening diameter 15 0.08mm 64 0.2mm 77 0.717 mm 91 0.5mm 97 1 mm 100 2 mm
- This layer of bitumen sand is implemented according to standard NFP-98-150, which gives it a good levelness, and has a final thickness of 2 cm, after cooling and spreading a bonding layer of bituminous emulsion type. dosed at 250-300 g / m 2 with residual binder.
- This example concerns a coated type material bituminous, the Applicant of which recommends the use for the reinforcement of a pavement, as a layer to be placed under the rigid base layer of new pavement and on a pavement to be reinforced.
- reprofiling mix that is to say a hot coated prepared from bitumen whose penetration at 25 ° C is between 35 and 50 tenths of millimeter.
- This asphalt has a sandy character and a particle size between 0 and 6 mm or between 0 and 10 mm, of the type: % passing Sieve opening diameter 0/6 0/10 12 10 0.08mm 60 50 2 mm 100 80 6.3 mm
- This asphalt has a higher richness module k or equal to 3.0, if the asphalt has a particle size between 0 and 6 mm, and greater than or equal to 2.8, if the mix has a particle size between 0 and 10 mm.
- This example concerns a material of material type pourable bituminous, which the Applicant recommends the use for the construction of a new roadway, as a layer to be placed under the rigid seat layer of the floor.
- This asphalt has a macroroughness, defined by a sand height according to standard NFP-98-216-1, of the order of 4 mm.
- This layer is implemented according to standard NFP-98-150, which gives it a good level, with a bonding layer of the cationic emulsion type, prepared from a bitumen of penetrability of between 70 and 100 tenths of millimeter, dosed at 200-500 g / m 2 with residual binder.
- This example concerns a geotextile type material, which the Applicant recommends the use for construction of a new pavement, as a layer to be placed under the rigid base layer of this new roadway.
- the polyester fibers have a weight of 80 g / m 2 , a mechanical strength of 2 kN / m and an elongation of 40%.
- the glass grid has a weight of 55 g / m 2 , a mechanical strength of 14 kN / m and an elongation of 3%.
- the impregnation rate of this geotextile is 600 g / m 2 , with a bitumen emulsion of penetrability between 180 and 220 tenths of a millimeter.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Laminated Bodies (AREA)
- Vehicle Body Suspensions (AREA)
- Road Paving Machines (AREA)
- Road Signs Or Road Markings (AREA)
Description
- une couche supérieure, directement en contact avec les véhicules routiers et pouvant être réalisée avec un enrobé traditionnel, comme par exemple, un béton bitumineux ; elle est dénommée ci-après "couche de roulement" de la chaussée,
- au moins une couche inférieure, et quelquefois plusieurs, constituant l'assise de la chaussée et pouvant être réalisée, par exemple, à partir de matériaux traités avec des liants hydrauliques tels que les graves-ciments ou les graves-laitiers, ou bien à partir d'enrobés bitumineux ; elle est dénommée ci-après "couche d'assise" de la chaussée.
- d'abord, la localisation des déformations et des contraintes en traction à la base de la couche d'assise, avec un effet maximal en fond de défauts,
- puis la création d'une microfissure, apparaissant préférentiellement en fond de défauts,
- et, enfin, lorsque les contraintes deviennent supérieures à la résistance en traction du matériau, la transformation de la microfissure en fissure, qui se propage vers le haut de la chaussée, en conduisant alors, à terme, à la rupture de la chaussée.
- la création d'une interface, consistant en une membrane en bitume/caoutchouc coulée sur la couche d'assise pour découpler les mouvements de cette dernière et ceux de la couche de roulement qui la surmonte,
- le renforcement en traction des couches de béton bitumineux de surface par des grilles de polyester présentant des caractéristiques mécaniques suffisantes, ces grilles étant placées entre la couche d'assise et la couche de roulement,
- la mise en place d'un polyester non tissé, avec un recouvrement de ce non tissé par une couche d'environ cinq centimètres d'un béton bitumineux servant de couche de roulement,
- la mise en place d'une interface en géotextile non tissé, imprégné d'un liant bitumineux, consistant en un bitume modifié à l'aide par exemple d'un copolymère de styrène et d'un diène conjugué tel que le butadiène, comme décrit dans la demande de brevet FR-A-2 592 411,
- la mise en place d'une couche d'un géotextile imprégné d'un premier liant bitumineux, accolé à une couche de granulats enrobés d'un second liant bitumineux, comme décrit dans la demande de brevet WO - 94/01623.
- une couche de roulement,
- au moins une couche d'assise rigide, dont le module de rigidité est supérieur ou égal à 14.103 MPa, qui supporte la couche de roulement,
- le sol, ou un matériau non traité, ou une chaussée endommagée, supportant la couche d'assise,
- on recouvre le sol, ou un matériau non traité, ou une chaussée fortement dégradée, d'une couche destinée à adhérer à la couche d'assise et dont l'épaisseur est suffisante pour recouvrir les irrégularités de la surface sur laquelle elle prend appui, afin de constituer pour la couche d'assise un support à surface lisse et plane,
- on applique sur cette couche d'assise, dont le module de rigidité est supérieur à 14.103Mpa,
- on recouvre la couche d'assise par la couche de roulement.
- une couche de roulement,
- au moins une couche d'assise,
- la couche adhérant à la couche d'assise et dont l'épaisseur est telle qu'elle constitue un support lisse et plan pour cette couche d'assise,
- le sol ou le matériau non traité.
- une couche de roulement,
- au moins une couche d'assise,
- la couche adhérant à la couche d'assise et dont l'épaisseur est telle qu'elle constitue un support lisse et plan pour cette couche d'assise,
- l'ancienne chaussée à renforcer.
| % passant | Diamètre d'ouverture du tamis |
| 15 | 0,08 mm |
| 64 | 0,2 mm |
| 77 | 0,717 mm |
| 91 | 0,5 mm |
| 97 | 1 mm |
| 100 | 2 mm |
| % passant | Diamètre d'ouverture du tamis | |
| 0/6 | 0/10 | |
| 12 | 10 | 0,08 mm |
| 60 | 50 | 2 mm |
| 100 | 80 | 6,3 mm |
Claims (13)
- Structure de chaussée comprenant de haut en bas :- une couche de roulement,au moins une couche d'assise rigide, qui supporte la couche de roulement,le sol, ou un matériau non traité, ou une chaussée endommagée, supportant la couche d'assise, ladite structure de chaussée comprenant sous la couche d'assise, une couche adhérant à celle-ci caractérisée en ce que l'épaisseur de ladite couche placée sous la couche d'assise est suffisante pour recouvrir les irrégularités de la surface sur laquelle elle prend appui, afin de constituer pour la couche d'assise dont le module de rigidité est supérieur ou égal à 14.103Mpa, un support à surface lisse et plane, c'est-à-dire présentant une macrorugosité, mesurée par l'essai de hauteur de sable selon la norme NFP98-/216-1, correspondant à une hauteur de sable inférieure ou égale à 4 mm.
- Structure de chaussée selon la revendication 1, caractérisée en ce que la couche placée sous ladite couche d'assise est réalisée à partir d'enrobés bitumineux.
- Structure de chaussée selon l'une des revendications 1 ou 2, caractérisée en ce que la couche placée sous ladite couche d'assise est réalisée à partir de sables bitumes, d'enrobés de reprofilage, d'enrobés à froid ou de bétons bitumineux.
- Structure de chaussée selon la revendication 1, caractérisée en ce que la couche placée sous ladite couche d'assise est réalisée à partir de matériaux bitumineux coulables.
- Structure de chaussée selon l'une des revendications 1 ou 4, caractérisée en ce que la couche placée sous ladite couche d'assise est réalisée à partir d'enrobés coulés à froid, de coulis bitumineux ou d'asphaltes coulés.
- Structure de chaussée selon la revendication 1, caractérisée en ce que la couche placée sous ladite couche d'assise est réalisée à partir de matériuax non bitumineux appartenant notamment au groupe constitué par les géotextiles, les géomembranes telles que les films polymériques, les coulis aux liants hydrauliques, les tapis de déchets agglomérés par des liants organiques ou minéraux et les couches traitées par des liants hydrauliques.
- Structure de chaussée selon l'une des revendications 1 à 6, caractérisée en ce que la couche placée sous ladite couche d'assise présente une macrorugosité, définie par la hauteur de sable selon la norme MFP-98 216-1, inférieure à 4 mm, et de préférence inférieure à 2 mm.
- Structure de chaussée selon l'une des revendications 1 à 7, caractérisée en ce que la couche placée sous ladite couche d'assise est rendue adhérente à ladite couche d'assise par une couche d'accrochage sous forme d'émulsion de bitume.
- Structure de chaussée selon l'une des revendications 1 à 8, caractérisée en ce que ladite couche de roulement est un béton bitumineux.
- Structure de chaussée selon l'une des revendications 1 à 9, caractérisée en ce que ladite couche d'assise est un enrobé bitumineux réalisé à partir d'un liant dont la pénétrabilité à 25 °C est comprise entre 0 et 20.
- Structure de chaussée selon la revendication 10, caractérisée en ce que ladite couche d'assise est un enrobé bitumineux réalisé à partir d'un liant dont la teneur dans l'enrobé est supérieure à 6 parties pour cent en poids.
- Structure de chaussée selon l'une des revendications 10 et 11, caractérisée en ce que ladite couche d'assise présente une épaisseur comprise entre 5 et 30 cm.
- Procédé de fabrication d'une structure de chaussée selon l'une des revendications 1 à 12, caractérisé par les étapes successives suivantes:on recouvre le sol, ou un matériau non traité, ou une chaussée fortement dégradée, d'une couche destinée à adhérer à la couche d'assise et dont l'épaisseur est suffisante pour recouvrir les irrégularités de la surface sur laquelle elle prend appui, afin de constituer pour la couche d'assisse un support à surface lisse et plane, c'est-à-dire présentant une macrorugosité, mesurée par l'essai de hauteur de sable selon la norme NFP 98-216-1, correspondant à une hauteur de sable inférieure ou égale à 4mm.on applique sur cette couche la couche d'assise, dont le module de rigidité est supérieur ou égal à 14.103 MPa,on recouvre la couche d'assise par la couche de roulement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9603871 | 1996-03-28 | ||
| FR9603871A FR2746821B1 (fr) | 1996-03-28 | 1996-03-28 | Nouvelle structure de chaussee, realisee a partir de materiaux rigides |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0798417A1 EP0798417A1 (fr) | 1997-10-01 |
| EP0798417B1 true EP0798417B1 (fr) | 2003-05-28 |
Family
ID=9490647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97400612A Expired - Lifetime EP0798417B1 (fr) | 1996-03-28 | 1997-03-19 | Nouvelle structure de chaussée, réalisée à partir de matériaux rigides |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6158920A (fr) |
| EP (1) | EP0798417B1 (fr) |
| JP (1) | JPH111901A (fr) |
| CN (1) | CN1266343C (fr) |
| AT (1) | ATE241734T1 (fr) |
| CA (1) | CA2201095C (fr) |
| DE (1) | DE69722300T2 (fr) |
| DK (1) | DK0798417T3 (fr) |
| ES (1) | ES2202562T3 (fr) |
| FR (1) | FR2746821B1 (fr) |
| PT (1) | PT798417E (fr) |
| ZA (1) | ZA972296B (fr) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6623207B2 (en) * | 2001-06-07 | 2003-09-23 | Kmc Enterprises, Inc. | Method of upgrading gravel and/or dirt roads and a composite road resulting therefrom |
| US7455476B2 (en) * | 2003-12-18 | 2008-11-25 | Kmc Enterprises, Inc. | Method of reconstructing a bituminous-surfaced pavement |
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| US2078485A (en) * | 1934-02-15 | 1937-04-27 | Ansel W Dunham | Composite highway beam construction |
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| FR1601049A (fr) * | 1968-12-31 | 1970-08-03 | ||
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-
1996
- 1996-03-28 FR FR9603871A patent/FR2746821B1/fr not_active Expired - Fee Related
-
1997
- 1997-03-17 ZA ZA9702296A patent/ZA972296B/xx unknown
- 1997-03-19 DK DK97400612T patent/DK0798417T3/da active
- 1997-03-19 AT AT97400612T patent/ATE241734T1/de not_active IP Right Cessation
- 1997-03-19 ES ES97400612T patent/ES2202562T3/es not_active Expired - Lifetime
- 1997-03-19 DE DE69722300T patent/DE69722300T2/de not_active Expired - Fee Related
- 1997-03-19 PT PT97400612T patent/PT798417E/pt unknown
- 1997-03-19 EP EP97400612A patent/EP0798417B1/fr not_active Expired - Lifetime
- 1997-03-26 CA CA002201095A patent/CA2201095C/fr not_active Expired - Fee Related
- 1997-03-27 CN CNB971033838A patent/CN1266343C/zh not_active Expired - Fee Related
- 1997-03-28 JP JP9078286A patent/JPH111901A/ja active Pending
- 1997-03-28 US US08/828,369 patent/US6158920A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2202562T3 (es) | 2004-04-01 |
| DK0798417T3 (da) | 2003-09-22 |
| JPH111901A (ja) | 1999-01-06 |
| DE69722300D1 (de) | 2003-07-03 |
| CA2201095C (fr) | 2007-09-18 |
| US6158920A (en) | 2000-12-12 |
| CN1266343C (zh) | 2006-07-26 |
| CA2201095A1 (fr) | 1997-09-28 |
| PT798417E (pt) | 2003-10-31 |
| CN1163332A (zh) | 1997-10-29 |
| ZA972296B (en) | 1997-09-17 |
| ATE241734T1 (de) | 2003-06-15 |
| EP0798417A1 (fr) | 1997-10-01 |
| DE69722300T2 (de) | 2004-04-29 |
| FR2746821A1 (fr) | 1997-10-03 |
| FR2746821B1 (fr) | 1998-06-26 |
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