WO1994001623A1 - Systeme perfectionne anti-remontee de fissures intercale entre la couche de structure et la couche de roulement d'une chaussee et procede pour la realisation d'un tel systeme - Google Patents
Systeme perfectionne anti-remontee de fissures intercale entre la couche de structure et la couche de roulement d'une chaussee et procede pour la realisation d'un tel systeme Download PDFInfo
- Publication number
- WO1994001623A1 WO1994001623A1 PCT/FR1993/000690 FR9300690W WO9401623A1 WO 1994001623 A1 WO1994001623 A1 WO 1994001623A1 FR 9300690 W FR9300690 W FR 9300690W WO 9401623 A1 WO9401623 A1 WO 9401623A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- bituminous binder
- geotextile
- coated
- aggregates
- 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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
- E01C7/325—Joining different layers, e.g. by adhesive layers; Intermediate layers, e.g. for the escape of water vapour, for spreading stresses
-
- 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
- E01C11/00—Details of pavings
- E01C11/16—Reinforcements
- E01C11/165—Reinforcements particularly for bituminous or rubber- or plastic-bound 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
- E01C7/185—Isolating, separating or connecting intermediate layers, e.g. adhesive layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions
Definitions
- the invention relates to an improved system for preventing cracks from rising between the structural layer and the wearing course of a roadway. It also relates to a method for producing such a system.
- Road or airport pavements are generally formed of several layers, namely an upper layer, called a wearing course, based on a material of the surface-coated type or even of the bituminous concrete type and one or more lower layers forming the structural layer.
- pavement based on materials treated with hydraulic binders such as cements, blast furnace slag, pozzolan, fly ash, bituminous binders.
- the various mechanical and thermal stresses of a static nature for example setting shrinkage and thermal shrinkage of materials, or of a dynamic nature, namely constraints related to traffic, to which the roadways are subjected, cause cracking of the structural layer, the cracks generated are transmitted more or less quickly to the wearing course and then appear on the surface of the latter.
- the presence of cracks on the surface of the road allows water to enter the body of said road, which causes rapid and significant degradation of the latter.
- a more efficient solution proposed in the citation FR-A-2592411, consists in interposing, between the structural layer and the wearing course, an interface in non-woven geotextile impregnated with a bituminous binder consisting of a modified bitumen, for example , by a copolymer of styrene and a conjugated diene such as butadiene.
- the crack prevention system according to the invention which is interposed between the structural layer and the wearing layer of a roadway, is of the type comprising a layer of a geotextile impregnated with a first bituminous binder, and it is characterized in that it also includes a layer of aggregates coated with a second bituminous binder, which is attached to the geotextile layer impregnated with a first bituminous binder.
- the anti-rising crack system is arranged so between the structural layer and the wearing course of the roadway that the geotextile layer impregnated with the first bituminous binder rests on the structural layer of the road, while the layer of aggregates coated with the second bituminous binder is coated with the wearing course.
- the anti-rising crack system is arranged so between the structural layer and the wearing course of the roadway that the layer of aggregates coated with the second bituminous binder rests on the structural layer of the pavement, while the geotextile layer impregnated with the first bituminous binder is coated with the wearing course.
- the layer of aggregates coated with the second bituminous binder can advantageously be a layer of sand coated with said binder.
- geotextile is meant according to the invention any textile web of tight texture, which is produced from natural or synthetic yarns or fibers and which is used in the usual way in road construction and land stabilization operations.
- the geotextile used according to the invention consists of a nonwoven web formed from continuous filaments based on a polymer such as polyester, isotactic polypropylene, polyamide, polyacrylonitrile, cellulose acetate, polyvinyl chloride, polyvinylidene chloride.
- a geotextile consisting of a tightly woven nonwoven web formed from continuous filaments based on isotactic polypropylene, or else a polyester, especially polyethylene terephthalate glycol such as polyethylene terephthalate, or else a polyamide, in particular polycaproamide or polyhexamethylene adipamide.
- the nonwoven web formed from continuous filaments based on a polymer may in particular be the web described in one or other of the citations FR-A-1601049, FR-A-2108145 and FR-A- 2592411, said citations indicating the general method of producing such a web.
- the surface mass of the textile sheet constituting the geotextile can vary quite widely and is advantageously between 50 and 500 g / m2.
- the surface mass of said textile web is preferably between 100 and 300 g / m2.
- the first bituminous binder which impregnates the geotextile to form the geotextile layer impregnated with the anti-crack recovery system, is advantageously used in an amount between 200 g and 1500 g and preferably between 300 g and 1000 g per square meter of sheet. geotextile.
- the aggregate component can be chosen from the various sands which are used on road construction sites and whose passing through a 6 mm sieve is greater than 80% and preferably equal to 100 %.
- the aggregate component chosen from sands that are used on road construction sites and whose 6 mm sieve pass-through is greater than 80%, is coated with the second bituminous binder, used as an aqueous emulsion, after having previously been brought into contact with a surfactant solution and optionally with an amount of cement less than 3% of the weight of the sand forming the aggregate component.
- the aggregate component chosen from gravel which is used on road construction sites and whose 20 mm sieve is greater than 90%, is hot-coated with the second bituminous binder so as to provide, after compaction, a vacuum content in the mix between 15% and 35% and preferably between 20% and 30%.
- the first bituminous binder which permeates the geotextile, as well as the second bituminous binder, which coats the aggregates, can be of identical or different natures and are chosen from bitumens and bitumens modified by polymers, which have a dynamic viscosity at 100 ° C between 0.4 Pa.s and 25 Pa.s and preferably between 0.7 Pa.s and 20 Pa.s.
- the first and second bituminous binders can be chosen in particular from bitumens modified by copolymers of styrene and a conjugated diene and very especially from bitumens modified by block copolymers of styrene and a conjugated diene such as butadiene, isoprene , carboxylated butadiene, the preparation of which is described in the citations FR-A-2376188, FR-A-2429241, FR-A-2528439 and FR-A-2636340.
- the geotextile or coat the granules with the chosen bituminous binder can be used either in the molten state or in the form of an aqueous emulsion, for example the emulsion described in one or the other of the citations FR-A-2517317, FR-A-2577545 and FR-A-2577546.
- an anti-crack recovery system interposed between the structural layer and the wearing layer of a roadway, said system comprising a layer of a geotextile impregnated with a first bituminous binder and attached to a layer of aggregates coated with a second bituminous binder, one of the layers of the anti-rising crack system is applied to the pavement structure layer, then the layer thus formed is coated with the other layer of the anti-crack recovery system and the wearing course is applied to the assembly thus formed.
- the geotextile layer impregnated with the first bituminous binder is first applied to the pavement structure layer, then the geotextile layer is coated with the layer of coated aggregates of the second bituminous binder and on this last layer, the road surface is applied.
- the layer of aggregates coated with the second bituminous binder is first applied to the structural layer of the roadway, then the said layer of aggregates coated with the layer of geotextile impregnated with first bituminous binder and on this last layer the road surface is applied.
- the wearing course of the road which rests on the anti-rising crack system, can be of any type known in the art, the binder used for this wearing course being a pure bitumen or a bitumen modified by a polymer. and in particular by a copolymer of styrene and of a conjugated diene such as butadiene, isoprene or carboxylated butadiene.
- the structural layer of the pavement When the structural layer of the pavement is cracked, it is useful to plug the widest cracks, for example cracks wider than 2 mm, using a bridging agent consisting of bituminous mastic before apply, on said structural layer, the first layer, namely impregnated geotextile or coated aggregates, as the case may be, with the anti-crack rise system.
- the layer of aggregates coated with the second bituminous binder which constitutes one of the two layers of the anti-rising crack system according to the invention has a thickness which may be between 1 cm and 6 cm.
- test pieces used each consisted of a rectangular multilayer plate, said plate having a length of 560mm and a width of 110mm and comprising a pre-cracked support layer along its transverse axis simulating the cracked structure layer of a roadway and an apparent layer simulating the wearing course of the roadway, the latter layer resting directly on the pre-cracked support layer or being separated from this support layer by a anti-crack recovery system.
- test pieces By using said test pieces, tests were carried out to determine the rate of ascent of the crack of the support layer in the layer of the test piece simulating the wearing course.
- test piece was mounted on the test machine so that one of the halves of the free face of the transverse pre-cracked support layer of the test piece was glued to one of the flat support elements and that the other of said halves was glued to the other of said planar support elements.
- test piece mounted on the testing machine was subjected, under constant temperature conditions (operation at a temperature of 5 ° C), simultaneously to two types of stress, namely - slow continuous longitudinal traction, with a speed of 5 ⁇ m per minute, simulating thermal shrinkage, and
- EXAMPLE 1 two-layer test pieces not comprising an anti-rising crack system, said test pieces being formed of a prefissured support layer 15 mm thick directly surmounted by a wearing layer 50 mm thick.
- EXAMPLE 2 test pieces comprising a pre-cracked support layer 15 mm thick and a wearing layer 30 mm thick between which was interposed a witness system anti-crack recovery consisting of a geotextile sheet impregnated with a bituminous binder of bitumen / polymer type.
- EXAMPLE 3 test pieces comprising a pre-cracked support layer 15 mm thick and a wearing layer 30 mm thick between which was interposed an anti-crack recovery system according to the invention, said system being formed of a layer consisting of a geotextile sheet impregnated with a bituminous binder of the bitumen / polymer type resting on the support layer and surmounted by a layer of 20 mm thick of sand coated with a bitumen / polymer binder, this layer of coated sand being surmounted by the wearing course.
- the transverse pre-cracked support layer of the various test pieces was made from the same bituminous concrete based on sand, bitumen and sulfur.
- the wearing course of the various test pieces consisted of a discontinuous 0/10 bituminous concrete formed from 6 parts by weight of a bitumen / polymer composition vulcanized with sulfur and from 100 parts by weight of a mixture consisting, by weight, of 60%. gravel 6 / 10mm, 10% 0 / 4mm sand, 27.5% 0 / 2mm sand and 2.5% filler fines (80% of said fines passing the 80 ⁇ m sieve and 100% passing the 315 ⁇ m).
- the bitumen / polymer composition used for producing the wearing course of the test pieces was prepared as follows. 100 parts by weight of a 180/220 bitumen with a penetration equal to 200 were mixed at 170 ° C.
- the bitumen / polymer composition obtained had a dynamic viscosity at 100 ° C equal to 8.5 Pa.s.
- the geotextile sheet impregnated with bituminous bitumen / polymer binder used in the test pieces of Examples 2 and 3, consisted of a sheet of a nonwoven of isotactic polypropylene yarns having a grammage of 170 g / m 2 impregnated with 900 g / m 2 d 'a bitumen / polymer binder having a dynamic viscosity at 100 "C equal to 1 Pa.s, said binder being applied to the web in the form of an aqueous emulsion.
- This bitumen / polymer binder was prepared as follows. A stock solution was first formed by incorporating, at 100 ° C. and with stirring, 2.4 parts by weight of orthorhombic crystallized sulfur and 62 parts by weight of the styrene / butadiene block copolymer defined above at 230 parts by weight of an oil cut of naphtheno-paraffinic character having an initial point and an end point of ASTM distillation (standard ASTM D8 667) equal respectively to 162 ° C and 233 ° C, said incorporation being carried out in 1 hour. The mother solution thus obtained was then incorporated into 1950 parts by weight of a bitumen with a penetration equal to 82, maintained at 170 ° C with stirring, after which the mixture thus produced was still kept under stirring at 170 ° C for 30 minutes.
- bitumen / fluidized polymer binder (dynamic viscosity at 100 ° C equal to 1 Pa.s) thus obtained was then put into an aqueous emulsion as indicated in Example 3 of the citation FR-A-2577546 to produce the bitumen / polymer binder emulsion used to impregnate the geotextile sheet.
- the layer of sand coated with bitumen / polymer binder present in the test pieces of Example 3 was formed by 9 parts by weight of bitumen / polymer binder consisting of the same bitumen / polymer composition as that used in the constitution of the wearing course. and 100 parts by weight of a mixture made up, by weight, of 44% 2/6 mm gravel, 53% 0 / 2mm sand and 3% of filler fines of the same kind as those used to produce the layer of rolling.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Processing Of Solid Wastes (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Laminated Bodies (AREA)
- Disintegrating Or Milling (AREA)
- Road Repair (AREA)
- Ceramic Products (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69317989T DE69317989D1 (de) | 1992-07-07 | 1993-07-05 | Verbessertes system zum vorbeugen von aufsteigenden rissen zwischen der fahrbahn und dem unterbau einer strasse, und verfahren zur herstellung |
US08/204,178 US5445473A (en) | 1992-07-07 | 1993-07-05 | Crack anti-rise system inserted between the structural layer and the road carpet of a carriageway and process for producing such a system |
BR9305576A BR9305576A (pt) | 1992-07-07 | 1993-07-05 | Sistema aperfeiçoado anti-aumento de fissuras intercalado entre a camada de estrutura e a camada de rolamento de um calçamento e processo para a realização desse sistema |
EP93914814A EP0603369B1 (fr) | 1992-07-07 | 1993-07-05 | Systeme perfectionne anti-remontee de fissures intercale entre la couche de structure et la couche de roulement d'une chaussee et procede pour la realisation d'un tel systeme |
JP6503033A JPH07501371A (ja) | 1992-07-07 | 1993-07-05 | 車道の構造層と表層との間に挿入される優れたひび割れ浮上防止システム及び該システムを製造する方法 |
FI941042A FI941042A (fi) | 1992-07-07 | 1994-03-04 | Edistynyt halkeaman etenemisen estojärjestelmä tien rakenteellisten jakulutuskerrosten välillä ja menetelmä sellaisen valmistamiseksi |
NO940765A NO940765L (no) | 1992-07-07 | 1994-03-04 | System innfört mellom det strukturelle lag og veidekket av en kjörebane for å forhindre sprekkforplanting fra det strukturelle lag og opp til veidekket, samt fremgangsmåte ved fremtilling av et slikt system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9208366A FR2693490B1 (fr) | 1992-07-07 | 1992-07-07 | 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. |
FR92/08366 | 1992-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994001623A1 true WO1994001623A1 (fr) | 1994-01-20 |
Family
ID=9431626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1993/000690 WO1994001623A1 (fr) | 1992-07-07 | 1993-07-05 | Systeme perfectionne anti-remontee de fissures intercale entre la couche de structure et la couche de roulement d'une chaussee et procede pour la realisation d'un tel systeme |
Country Status (11)
Country | Link |
---|---|
US (1) | US5445473A (fr) |
EP (1) | EP0603369B1 (fr) |
JP (1) | JPH07501371A (fr) |
AT (1) | ATE165130T1 (fr) |
BR (1) | BR9305576A (fr) |
CA (1) | CA2117087A1 (fr) |
DE (1) | DE69317989D1 (fr) |
ES (1) | ES2112746B1 (fr) |
FI (1) | FI941042A (fr) |
FR (1) | FR2693490B1 (fr) |
WO (1) | WO1994001623A1 (fr) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2746821B1 (fr) * | 1996-03-28 | 1998-06-26 | Total Raffinage Distribution | Nouvelle structure de chaussee, realisee a partir de materiaux rigides |
FR2798942B1 (fr) * | 1999-09-29 | 2002-01-18 | Colas Sa | Chaussee de circulation comportant une couche anti-fissure |
NL1016907C2 (nl) * | 2000-12-18 | 2002-06-19 | Vermeer Infrastructuur B V | Wegconstructie en werkwijze voor het realiseren van een dergelijke wegconstructie. |
US7550175B1 (en) | 2001-06-27 | 2009-06-23 | Semmaterials, L.P. | Method for selecting an asphalt mixture for making an interlayer and method of making an interlayer |
US20040253384A1 (en) * | 2003-06-10 | 2004-12-16 | Simmons C. David | System and method for coating and sealing structural surfaces |
WO2005010140A1 (fr) * | 2003-07-21 | 2005-02-03 | Algenion Gmbh & Co. Kg | Procede et dispositif de culture de micro-organismes eucaryotes ou d'algues bleues, et biodetecteur presentant des micro-organismes eucaryotes ou des algues bleues cultives |
US7709106B2 (en) * | 2003-07-31 | 2010-05-04 | Road Science, L.L.C. | Reflective crack relief pavement interlayer with improved load bearing capacity and method for designing interlayer |
US20050058515A1 (en) * | 2003-09-12 | 2005-03-17 | Markusch Peter H. | Geotextile/polymer composite liners based on waterborne resins |
US7504129B2 (en) * | 2005-03-16 | 2009-03-17 | Ra Golv Ab | Method of producing a flooring and a flooring produced according to the method |
EE00787U1 (et) * | 2008-07-31 | 2009-01-15 | As Amhold | Teekatte konstruktsioon |
DE102010026744A1 (de) * | 2010-07-09 | 2012-01-12 | Kemna Bau Andreae Gmbh & Co Kg | Verfahren zur Herstellung einer lärmmindernden Dämpfungsschicht und einer weiteren auf der Dämpfungsschicht angeordneten Schicht für eine Straße |
US8992118B2 (en) | 2013-03-15 | 2015-03-31 | William B. Coe | Pavement repair system utilizing solid phase autoregenerative cohesion |
US9057163B1 (en) | 2013-03-15 | 2015-06-16 | William B. Coe | Pavement repair system |
MX2020011760A (es) | 2013-03-15 | 2022-08-10 | William B Coe | Sistema de reparacion de pavimento. |
EP3583266B1 (fr) | 2017-02-14 | 2021-12-08 | William B. Coe | Appareil et procédé permettant de préparer un mélange d'asphalte et d'agrégat |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4113401A (en) * | 1976-05-05 | 1978-09-12 | Mcdonald Charles H | Method of pavement repair |
FR2517317A1 (fr) * | 1981-11-27 | 1983-06-03 | Elf France | Emulsions cationiques de liants bitumineux du type bitume-polymere et procede pour leur preparation |
FR2592411A1 (fr) * | 1985-12-26 | 1987-07-03 | Rhone Poulenc Fibres | Perfectionnement au procede et moyen pour la protection des revetements des chaussees contre l'amorcage des fissurations |
FR2636340A1 (fr) * | 1988-09-09 | 1990-03-16 | Elf France | Procede de preparation de compositions bitume-polymere, application des compositions obtenues a la realisation de revetements et solution mere de polymere utilisable pour l'obtention desdites compositions |
EP0440562A1 (fr) * | 1990-02-02 | 1991-08-07 | Entreprise Jean Lefebvre | Revêtement multicouche anti-fissuration pour chaussées |
EP0469222A1 (fr) * | 1989-02-03 | 1992-02-05 | Ccp Construction And Chemical Products Ltd. | procédé pour la construction du revêtement continu pour routes et aérodromes et son utilisation |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2536081B1 (fr) * | 1982-11-17 | 1986-06-06 | Charbonnages Ste Chimique | Compositions de bitumes-polymeres applicables a la realisation de liants routiers |
US5290123A (en) * | 1991-04-24 | 1994-03-01 | Barnes James L | Method for processing and applying pavement material |
-
1992
- 1992-07-07 FR FR9208366A patent/FR2693490B1/fr not_active Expired - Fee Related
-
1993
- 1993-07-05 BR BR9305576A patent/BR9305576A/pt not_active IP Right Cessation
- 1993-07-05 JP JP6503033A patent/JPH07501371A/ja active Pending
- 1993-07-05 WO PCT/FR1993/000690 patent/WO1994001623A1/fr active IP Right Grant
- 1993-07-05 DE DE69317989T patent/DE69317989D1/de not_active Expired - Lifetime
- 1993-07-05 ES ES09450005A patent/ES2112746B1/es not_active Expired - Fee Related
- 1993-07-05 AT AT93914814T patent/ATE165130T1/de not_active IP Right Cessation
- 1993-07-05 EP EP93914814A patent/EP0603369B1/fr not_active Expired - Lifetime
- 1993-07-05 CA CA002117087A patent/CA2117087A1/fr not_active Abandoned
- 1993-07-05 US US08/204,178 patent/US5445473A/en not_active Expired - Lifetime
-
1994
- 1994-03-04 FI FI941042A patent/FI941042A/fi unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4113401A (en) * | 1976-05-05 | 1978-09-12 | Mcdonald Charles H | Method of pavement repair |
FR2517317A1 (fr) * | 1981-11-27 | 1983-06-03 | Elf France | Emulsions cationiques de liants bitumineux du type bitume-polymere et procede pour leur preparation |
FR2592411A1 (fr) * | 1985-12-26 | 1987-07-03 | Rhone Poulenc Fibres | Perfectionnement au procede et moyen pour la protection des revetements des chaussees contre l'amorcage des fissurations |
FR2636340A1 (fr) * | 1988-09-09 | 1990-03-16 | Elf France | Procede de preparation de compositions bitume-polymere, application des compositions obtenues a la realisation de revetements et solution mere de polymere utilisable pour l'obtention desdites compositions |
EP0469222A1 (fr) * | 1989-02-03 | 1992-02-05 | Ccp Construction And Chemical Products Ltd. | procédé pour la construction du revêtement continu pour routes et aérodromes et son utilisation |
EP0440562A1 (fr) * | 1990-02-02 | 1991-08-07 | Entreprise Jean Lefebvre | Revêtement multicouche anti-fissuration pour chaussées |
Non-Patent Citations (1)
Title |
---|
HIGHWAYS vol. 58, no. 1957, Janvier 1990, CROYDON GB pages 12 - 14 BUIST&INESON 'GEOGRIDS IN REINFORCING ASPHALTIC PAVEMENTS' NETLON TENSAR GRID * |
Also Published As
Publication number | Publication date |
---|---|
US5445473A (en) | 1995-08-29 |
ATE165130T1 (de) | 1998-05-15 |
CA2117087A1 (fr) | 1994-01-20 |
JPH07501371A (ja) | 1995-02-09 |
DE69317989D1 (de) | 1998-05-20 |
ES2112746B1 (es) | 1999-06-16 |
FR2693490B1 (fr) | 1994-09-02 |
EP0603369A1 (fr) | 1994-06-29 |
ES2112746A1 (es) | 1998-04-01 |
BR9305576A (pt) | 1996-01-09 |
FI941042A (fi) | 1994-05-04 |
EP0603369B1 (fr) | 1998-04-15 |
FR2693490A1 (fr) | 1994-01-14 |
FI941042A0 (fi) | 1994-03-04 |
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