WO1993011302A1 - Phosphorescent bituminous composition - Google Patents
Phosphorescent bituminous composition Download PDFInfo
- Publication number
- WO1993011302A1 WO1993011302A1 PCT/FR1992/001121 FR9201121W WO9311302A1 WO 1993011302 A1 WO1993011302 A1 WO 1993011302A1 FR 9201121 W FR9201121 W FR 9201121W WO 9311302 A1 WO9311302 A1 WO 9311302A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- phosphorescent
- resins
- plastics
- bituminous composition
- composition according
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 14
- 229920003023 plastic Polymers 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000010426 asphalt Substances 0.000 claims abstract description 7
- 239000003086 colorant Substances 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract 2
- 238000000576 coating method Methods 0.000 claims description 11
- 239000011230 binding agent Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000008646 thermal stress Effects 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 2
- 239000005080 phosphorescent agent Substances 0.000 description 4
- 230000007480 spreading Effects 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 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
- E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
-
- 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
- E01C7/085—Aggregate or filler materials therefor; Coloured reflecting or luminescent additives therefor
Definitions
- the present invention is characterized by the association of one or more phosphorescent compounds with a hydrocarbon binder emulsion.
- bituminous compositions thus obtained can be used for coatings on circulated surfaces.
- the black color of bitumen favors piloting errors at night, due to the risk of confusion and poor contrast with the surrounding environment.
- this invention proposes incorporating phosphorescent composites themselves included in a plastic or synthetic resin support, into the bituminous binder emulsion in order to
- the phosphorescence will be weakly perceived during the daytime periods while it will make it possible to distinguish the circulated surfaces
- This invention contributes to improving the safety of the road network.
- the phosphorescent compounds will preferably be incorporated into synthetic materials, plastics or resins in order to ensure optimum light profitability according to the desired use.
- the intensity of the phosphorescence can be modulated according to the amount of active phosphorescent product contained in the synthetic support. This intensity can also be adjusted as a function of the number of active phosphorescent elements spread per square meter of coated pavement.
- the calibration of phosphorescent plastics will be adapted to a. that of the gravel used jointly.
- the hardness and the adhesion of the phosphorescent plastic can vary on demand according to the use of the roadway in order to correspond to the mechanical and thermal stresses undergone over time.
- the melting temperature of the phosphorescent plastic is significantly higher than the temperature of preparation or spreading of the hydrocarbon binder, (the flash point must generally be greater than 180 degrees)
- the reactivation of the phosphorescent compound must be carried out after a short light exposure. Lighting time
- the phosphors can be mixed according to their sensitivity to ensure correct light emission taking into account the ambient light.
- the phosphorescent agents and their supports must be chemically compatible with the hydrocarbon binder emulsion to avoid a side reaction.
- the invention makes it possible to meet current needs
- the phosphorescent agent is preferably introduced into the tank at the time of unloading. The mixture is then stirred so that the final composition is homogeneous. The lower density of the phosphorescent agent will allow it to float during spreading.
- the main interest of this invention is to ensure better visibility and mainly facilitates driving at night.
- the road properties of the coatings obtained can also be modified in the direction of better adhesion and less rapid wear thanks to the intrinsic mechanical properties of phosphorescent resins.
- the invention seeks to obtain a ratio (number of particles used / number of effective particles) very close to unity, in order to ensure a minimum cost of use.
- a ratio number of particles used / number of effective particles
- the percentage of nighttime accidents compared to daytime accidents varies from region to region from 25 to 60%. However, night road traffic is ten times less than day traffic.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Paints Or Removers (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
Phosphorescent bituminous composition for use as a road surface material. Phosphorescent plastics or resins are added to conventional bituminous paving in order to facilitate night-time driving or driving with reduced visibility. The phosphorescent plastics or resins feature several colours and can be incorporated either during preparation of the bitumen or by spraying and pressing onto a surface which has just been covered with bitumen.
Description
COMPOSITION BITUMINEUSE PHOSPHORESCENTE PHOSPHORESCENT BITUMINOUS COMPOSITION
La présente invention se caractérise par l'association d'un ou de plusieurs composés phosphorescents à une emulsion de liant hydrocarboné. The present invention is characterized by the association of one or more phosphorescent compounds with a hydrocarbon binder emulsion.
Les compositions bitumineuses ainsi obtenues pourront servir aux revêtements des surfaces circulées. The bituminous compositions thus obtained can be used for coatings on circulated surfaces.
La mauvaise visibilité de la chaussée reste actuellement un facteur d'accident important souvent aggravé par un marquage au sol usagé ou absent. Poor visibility of the roadway currently remains a major accident factor, often aggravated by used or absent markings on the ground.
La couleur noire du bitume favorise en période nocturne les erreurs de pilotage, à cause du risque de confusion et du mauvais contraste avec le milieu ambiant. The black color of bitumen favors piloting errors at night, due to the risk of confusion and poor contrast with the surrounding environment.
Pour pallier à ces inconvénients cette invention propose d'incorporer des composas phosphorescents eux mêmes inclus dans un support plastique ou résine synthétique,à 1 'emulsion de liant bitumineux afin To overcome these drawbacks, this invention proposes incorporating phosphorescent composites themselves included in a plastic or synthetic resin support, into the bituminous binder emulsion in order to
de réaliser une phosphorescence au niveau de la partie supérieure du bitume. to achieve phosphorescence at the top of the bitumen.
Laphosphorescence sera faiblement perçue pendant les périodes diurnes tandis qu'elle permettra de distinguer les surfaces circulées The phosphorescence will be weakly perceived during the daytime periods while it will make it possible to distinguish the circulated surfaces
de façon très efficace pendant les périodes nocturnes ou à visibilité very effectively during night or visibility periods
réduites ( brouillard ).. reduced (fog) ..
Ainsi , il deviendra plus facile de percevoir un changementode direction , une chaussée rétrécie, ainsi que les obstacles immobiles Thus, it will become easier to perceive a change of direction, a narrowed roadway, as well as immobile obstacles.
sur la chaussée qui pourront être perçus car ils masquent alors la zone phosphorescente sur laquelle ils reposent. on the road which can be seen because they then mask the phosphorescent area on which they rest.
Cette invention contribue à l'amélioration de la sécurité du réseau routier . This invention contributes to improving the safety of the road network.
Les composés phosphorescents seront de préférence incorporés dans des matières de synthèse, plastiques ou résines afin d'assurer une rentabilité lumineuse optimale suivant l'utilisation souhaitée .
L'intensité de la phosphorescence peut être modulée suivant la quantité de produit phosphorescent actif contenu, dans le support synthétique . Cette intensité est également modulable en fonction du nombre d'éléments phosphorescents actifs répandus par mètre carré de chaussée enduite . The phosphorescent compounds will preferably be incorporated into synthetic materials, plastics or resins in order to ensure optimum light profitability according to the desired use. The intensity of the phosphorescence can be modulated according to the amount of active phosphorescent product contained in the synthetic support. This intensity can also be adjusted as a function of the number of active phosphorescent elements spread per square meter of coated pavement.
Cette souplesse d'utilisation permet d'adapter le revêtement en fonction des besoins locaux : ( exemple; Le revêtement d'un tunnel doit fournir une luminosité optimale .) This flexibility of use makes it possible to adapt the coating according to local needs: (example; The coating of a tunnel must provide optimum brightness.)
Afin d'éviter une répartition homogène des éléments In order to avoid a homogeneous distribution of the elements
phosphorescents dans l'épaisseur de la couche bitumineuse, (car seuls sont utiles les éléments phosphorescents de surface ), il est conseillé d'utiliser un plastique ou une résine dont' la densits est inférieure à celle du bitume, ce qui va faciliter lors de l'épandage l'effet surnageant de ces éléments utiles . phosphorescent in the thickness of the bituminous layer, (because only the surface phosphorescent elements are useful), it is advisable to use a plastic or a resin whose density is lower than that of bitumen, which will facilitate during spreading the supernatant effect of these useful elements.
Cette précaution n'est pas indispensable par contre lorsque le gravier est simplement projeté à la surface du bitume . Il suffit alors de mélanger de façon homogène les éléments phosphorescents avec le gravier habituellement utilisé . This precaution is not essential on the other hand when the gravel is simply sprayed on the surface of the bitumen. It is then sufficient to homogeneously mix the phosphorescent elements with the gravel usually used.
La bonne adhésion des éléments phosphorescents avec leur liant bitumineux est assurée grâce aux surfaces rugueuses des plastiques phosphorescents; la forme de ces plastiques doit se rapprocher autant que possible de la forme cubique pour assurer un bon maintient du revêtement . The good adhesion of phosphorescent elements with their bituminous binder is ensured thanks to the rough surfaces of phosphorescent plastics; the shape of these plastics should be as close as possible to the cubic shape to ensure good maintenance of the coating.
Le calibrage des plastiques phosphorescents sera adapté a. celui du gravillon utilisé conjointement. The calibration of phosphorescent plastics will be adapted to a. that of the gravel used jointly.
La dureté et l'adhérence du plastique phosphorescent peut varier à la demande suivant l'utilisation de la chaussée afin de correspondre aux contraintes mécaniques et thermiques subies dans le temps . The hardness and the adhesion of the phosphorescent plastic can vary on demand according to the use of the roadway in order to correspond to the mechanical and thermal stresses undergone over time.
Afin de conserver les qualités précités , il est souhaitable
que la température de fusion du plastique phosphorescent soit nettement supérieure à la température de préparation ou d'epandage du liant hydrocarboné, ( le point éclair doit en général être supérieur à 180 degrés ) In order to maintain the above qualities, it is desirable that the melting temperature of the phosphorescent plastic is significantly higher than the temperature of preparation or spreading of the hydrocarbon binder, (the flash point must generally be greater than 180 degrees)
La réactivation du composé phosphorescent doit être réalisé après une exposition lumineuse de courte durée . Le temps d'éclairage The reactivation of the phosphorescent compound must be carried out after a short light exposure. Lighting time
d'une voiture circulant à 90KM/H sur une chaussée phosphorescente doit servir de référence . of a car traveling at 90KM / H on a phosphorescent road should be used as a reference.
Les agents phosphorescents peuvent être mélangés en fonction de leur sensibilité pour assurer une émission lumineuse correcte compte tenu de la luminosité ambiante . The phosphors can be mixed according to their sensitivity to ensure correct light emission taking into account the ambient light.
Les agents phosphorescents et leurs supports doivent être compatibles chimiquement avec l'emulsion de liant hydrocarboné pour éviter une réaction secondaire . The phosphorescent agents and their supports must be chemically compatible with the hydrocarbon binder emulsion to avoid a side reaction.
L'invention permet de satisfaire les besoins actuels The invention makes it possible to meet current needs
en raison de la diversité importante obtenue par les plastiques et due to the great diversity obtained by plastics and
résines phosphorescentes détaillées précédemment . phosphorescent resins detailed previously.
Dans ce qui suit , on décrit des exemples de composition selon l'invention et les résultats de leur mise en oeuvre . In the following, examples of the composition according to the invention and the results of their use are described.
Dans le cas ou la quantité de composition bitumineuse In the case where the quantity of bituminous composition
phosphorescente à préparer est relativement faible , de l'ordre d'une phosphorescent to prepare is relatively low, of the order of
répandeuse par exemple , on introduit de préférence dans la citerne ,au moment du dépotage , l'agent phosphorescent . On effectue alors un brassage du mélange pour que la composition finale soit homogène. La densité plus faible de l'agent phosphorescent permettra à celui-ci de surnager lors de l'épandage . spreader, for example, the phosphorescent agent is preferably introduced into the tank at the time of unloading. The mixture is then stirred so that the final composition is homogeneous. The lower density of the phosphorescent agent will allow it to float during spreading.
Dans le cas d'un épandage de gravillons sur couche bitumineuse il est préférable de répartir les agents phosphorescents de façon uniforme à l'aide d'un malaxeur ou de tout autre matériel approprié ,afin d'obtenir
un étalement en surface correspondant au nombre d'éléments phosphorescents souhaités par mètre carré de surface recouverte (30 éléments phosphorescents par mètre carré offrent une différence de visibilité significative ) In the case of spreading of gravel on bituminous layer it is preferable to distribute the phosphorescent agents uniformly using a mixer or any other suitable material, in order to obtain a surface spread corresponding to the number of phosphorescent elements desired per square meter of surface covered (30 phosphorescent elements per square meter offer a significant difference in visibility)
Les propriétés routières des revêtements ainsi réalisés ont été comparées à celles des revêtements témoins selon des procédures classiques Ces test n'ont pas mis en évidence de différences significatives , exception faite de la luminescence . The road properties of the coatings thus produced were compared with those of the control coatings according to conventional procedures. These tests did not reveal any significant differences, except for luminescence.
Dans l'exemple choisi , les plastiques phosphorescents In the example chosen, phosphorescent plastics
représentent 0,5% en masse du revêtement final. Cette valeur peut varier en plus ou en moins suivant le produit phosphorescent utilisé et l'usage du revêtement . Il ne s'agit que d'une valeur indicative pour cet exemple . represent 0.5% by mass of the final coating. This value can vary more or less depending on the phosphorescent product used and the use of the coating. This is only an indicative value for this example.
L'intérêt principal de cette invention est d'assurer une meilleure visibilité et facilite principalement la conduite de nuit . The main interest of this invention is to ensure better visibility and mainly facilitates driving at night.
Ces conditions d'application facilement modulables doivent permettre These easily adjustable application conditions must allow
d'obtenir une luminosité satisfaisante en tenant compte des besoins obtain a satisfactory brightness taking into account the needs
spécifiques du tronçon routier considéré . specific to the road section considered.
Les propriétés routières des revêtements obtenus peuvent aussi être modifiées dans le sens d'une meilleure adhérence et d'une usure moins rapide grâce aux propriétés mécaniques intrinsèques des résines phosphorescent The road properties of the coatings obtained can also be modified in the direction of better adhesion and less rapid wear thanks to the intrinsic mechanical properties of phosphorescent resins.
L'invention cherche à obtenir un rapport ( nombre de particules utilisées / nombre de particules efficaces ) très proche de l'unité , afin d'assurer un coût d'utilisation minimal .Toutefois la répercution de cette invention en terme d'économie de santé saura largement compenser le faible surcoût de mise en oeuvre . The invention seeks to obtain a ratio (number of particles used / number of effective particles) very close to unity, in order to ensure a minimum cost of use. However, the repercussion of this invention in terms of health savings will largely compensate for the low additional cost of implementation.
Plusieurs teintes phosphorescentes sont actuellement disponibles , (vert , jaune , rose , bleu , orange ...) . Afin d'assurer une utilisation standardisée , il semble intéressant de réserver certaines couleurs à des tronçons routiers définis préalablement ; par exemple : Several phosphorescent colors are currently available (green, yellow, pink, blue, orange ...). In order to ensure standardized use, it seems interesting to reserve certain colors for previously defined road sections; for example :
(vert ;routes nationales -jaune;autoroutes -rose ; routes départementales
orange ; carrefours ou zones dangereuses .) (green; national roads - yellow; motorways - pink; departmental roads orange; crossroads or hazardous areas.)
Le poucentage d'accidents nocturnes par rapport aux accidents diurnes varie suivant les régions de 25 à60 % . Pourtant le traffic routier nocturne est dix fois moindre que le traffic diurne . The percentage of nighttime accidents compared to daytime accidents varies from region to region from 25 to 60%. However, night road traffic is ten times less than day traffic.
Ce nombre d'accidents nocturnes une fois rapporté au traffic réel devient très élevé . L'amélioration des conditions de visibilité assurées par l'invention va permettre d'en diminuer le nombre et de sauver des vies humaines ...
This number of nighttime accidents when compared to actual traffic becomes very high. The improvement in visibility conditions ensured by the invention will make it possible to reduce the number and save human lives ...
Claims
1 . Composition bitumineuse pour le revêtement des surfaces 1. Bituminous composition for coating surfaces
circulées comprenant , un liant hydrocarboné et du gravillon , caractérisé en ce qu'elle contient , en outre , des composés phosphorescents inclus dans des supports plastiques ou résines . circulated comprising, a hydrocarbon binder and gravel, characterized in that it also contains phosphorescent compounds included in plastic supports or resins.
2 . Composition selon la revendication 1 , caractérisée en ce 2. Composition according to Claim 1, characterized in that
que les produits phosphorescents utilisés pourront fournir une phosphorescence de plusieurs couleurs en fonction des additifs utilisés . that the phosphorescent products used can provide phosphorescence of several colors depending on the additives used.
3 . Composition selon la revendication 1 , caractérisée en ce que les plastiques et résines dans lesquels seront inclus les produits 3. Composition according to Claim 1, characterized in that the plastics and resins in which the products will be included
phosphorescents doivent posséder des caractéristiques physico-chimiques compatibles avec les contraintes mécaniques et thermiques supportées . phosphorescent must have physico-chemical characteristics compatible with the mechanical and thermal stresses supported.
4 . Procédé de préparation d'une composition bitumineuse selon la revendication 1 , caractérisée en ce qu'on mélange les plastiques ou 4. Process for the preparation of a bituminous composition according to claim 1, characterized in that the plastics or
résines phosphorescents au liant hydrocarboné en cours de préparation phosphorescent resins with hydrocarbon binder in preparation
ou en projetant ceux-ci sur une surface qui vient d'être enduite de bitume . or by spraying them on a surface which has just been coated with bitumen.
5 . Revêtement de surface , caractérisés en ce qu'ils résultent de l'application d'une composition bitumineuse selon l'une quelconque 5. Surface coating, characterized in that they result from the application of a bituminous composition according to any one
des revendications 1 à 3 . of claims 1 to 3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR91/15317 | 1991-12-03 | ||
| FR9115317A FR2684398B1 (en) | 1991-12-03 | 1991-12-03 | PHOSPHORESCENT BITUMINOUS COMPOSITION. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1993011302A1 true WO1993011302A1 (en) | 1993-06-10 |
Family
ID=9419884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1992/001121 WO1993011302A1 (en) | 1991-12-03 | 1992-12-02 | Phosphorescent bituminous composition |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2684398B1 (en) |
| WO (1) | WO1993011302A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995010663A1 (en) * | 1993-10-13 | 1995-04-20 | Vejtek International A/S | A method and a material for making luminescent roads |
| WO2009156389A1 (en) * | 2008-06-24 | 2009-12-30 | Shell Internationale Research Maatschappij B.V. | Asphalt mixture |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2811663B1 (en) | 2000-07-13 | 2003-05-02 | Commenplus | LUMINESCENT RIPING MATERIAL AND METHOD FOR PLACING SUCH MATERIAL |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE679478A (en) * | 1966-04-13 | 1966-09-16 | ||
| EP0206245A2 (en) * | 1985-06-21 | 1986-12-30 | Advanced Chemical Technologies Company | Luminescent silane |
| EP0330281A2 (en) * | 1988-02-22 | 1989-08-30 | Shell Internationale Researchmaatschappij B.V. | Pigmentable binder composition |
| WO1990002226A1 (en) * | 1988-08-26 | 1990-03-08 | Labino Patent Ab | Fluorescent road surfacing material |
-
1991
- 1991-12-03 FR FR9115317A patent/FR2684398B1/en not_active Expired - Fee Related
-
1992
- 1992-12-02 WO PCT/FR1992/001121 patent/WO1993011302A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE679478A (en) * | 1966-04-13 | 1966-09-16 | ||
| EP0206245A2 (en) * | 1985-06-21 | 1986-12-30 | Advanced Chemical Technologies Company | Luminescent silane |
| EP0330281A2 (en) * | 1988-02-22 | 1989-08-30 | Shell Internationale Researchmaatschappij B.V. | Pigmentable binder composition |
| WO1990002226A1 (en) * | 1988-08-26 | 1990-03-08 | Labino Patent Ab | Fluorescent road surfacing material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995010663A1 (en) * | 1993-10-13 | 1995-04-20 | Vejtek International A/S | A method and a material for making luminescent roads |
| WO2009156389A1 (en) * | 2008-06-24 | 2009-12-30 | Shell Internationale Research Maatschappij B.V. | Asphalt mixture |
| US8562864B2 (en) | 2008-06-24 | 2013-10-22 | Shell Oil Company | Asphalt mixture |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2684398B1 (en) | 1993-12-31 |
| FR2684398A1 (en) | 1993-06-04 |
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