WO2008032303A1 - Procédé permettant d'augmenter la durabilité d'un enduit asphaltique et d'un mastic pour bitume - Google Patents

Procédé permettant d'augmenter la durabilité d'un enduit asphaltique et d'un mastic pour bitume Download PDF

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Publication number
WO2008032303A1
WO2008032303A1 PCT/IL2006/001079 IL2006001079W WO2008032303A1 WO 2008032303 A1 WO2008032303 A1 WO 2008032303A1 IL 2006001079 W IL2006001079 W IL 2006001079W WO 2008032303 A1 WO2008032303 A1 WO 2008032303A1
Authority
WO
WIPO (PCT)
Prior art keywords
additive
asphalt
mixture
bitumen
road
Prior art date
Application number
PCT/IL2006/001079
Other languages
English (en)
Inventor
George Belitsky
Michael Blumental
Vladimir Belitsky
Original Assignee
George Belitsky
Michael Blumental
Vladimir Belitsky
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by George Belitsky, Michael Blumental, Vladimir Belitsky filed Critical George Belitsky
Priority to PCT/IL2006/001079 priority Critical patent/WO2008032303A1/fr
Publication of WO2008032303A1 publication Critical patent/WO2008032303A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • 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

Definitions

  • a prevalent opinion is that the essential reason for the destruction of the asphalt covering upon the road is influenced by ultraviolet sun radiation. This author has calculated and has tested that ultraviolet light does not penetrate into depth practically more than one millimeter. Therefore, it cannot destroy the asphalt (or so-called asphalt- concrete) layer on a road, a thickness which is not less than several centimeters. To say the least, it cannot be the main reason for the asphalt coating destruction.
  • asphalt-concrete destruction on roads is mechanical forces influenced by transport.
  • asphalt- concrete destruction is apparent on a road with very intensive car motion, particularly if there is not enough qualitative base of a priming layer under the asphalt cover.
  • asphalt cover destroys quickly enough on roads with a low intensity of car motion, and also degenerates on roads with a full absence of car motion.
  • the basic way of increasing the duration of the asphalt surface is the repair of it by putting paths of a fresh material, via filling minor defects with bitumen sealant, or by melting the top layer of the covering.
  • all these methods are connected with significant use of manual labor, are expensive, insufficiently effective and worsen conditions for moving transport.
  • a mechanical milling process for the upper cover in which the removal of the upper layer and replacement of it with new material is often used at this time. This is an expensive process requiring applications of large amounts of fresh asphalt.
  • a sealant compound containing a natural binder, bitumen for example is known and often used in construction and in industry in order to make, for example, a watertight roof.
  • bitumen for example
  • a sealant compound containing a natural binder, bitumen for example is known and often used in construction and in industry in order to make, for example, a watertight roof.
  • Similar methods are used to repair the material as in the asphalt-concrete application.
  • Sealant compounds made on the base of synthetic polymers which are more expensive are used instead of the cheap, but short-lived bitumen sealant compound.
  • a stabilizing agent with disinfectant (antiseptic) action is proposed to be added into the mixture.
  • the mixture may be asphalt-concrete, for example, and this asphalt-concrete will be used for covering a road.
  • An additional hopper with weigh feeder can be established in an existing technological line of an asphalt plant.
  • the additive agent can then be filled in a granulated or powder form into this hopper.
  • a weigh feeder evenly submits it into a kiln-mixer (rotary inclined furnace) existing in the plant, where it is mixed with sand, crushed stones and other fillers (components) and is dehydrated by heating with existing technology.
  • the additive agent must be heat-resistant since during this process a very high temperature is used (about 1000 0 C), and under the influence of heat the additive may be destroyed and lose its' antiseptic properties.
  • the additive mixes with the fillers of asphalt-concrete. Some amount of the additive adheres to the granule surfaces of the filler. The small particles of the additive, which did not adhere to the filler, rise with streams of hot air and get lost. Therefore, it is reasonable to use an additive with effective adhesion to surfaces of the asphalt- concrete components. It is better to use any suitable substance in order to improve the adhesive properties of the material and/or the additive.
  • fillers wrap around and are mixed in with the melted bitumen in a blender using any existing technology.
  • all fillers and additives are enveloped by the binding of the bitumen and cling together in clots.
  • the prepared hot product (mixture) is then transported by trucks to a place of work on the road, spread out in road and rolled down.
  • the clots of the mixture stick together during the process, and generate almost a monolithic layer.
  • This mixed material also contains the disinfectant (antiseptic) additive.
  • Copper sulfate (Cu SO 4 ) is the most acceptable disinfectant additive material because it is cheap, very highly heat resistant and simple to use.
  • the minimal effective weight of concentration of copper sulfate can be about 0.0001% to suppress microorganisms.
  • concentration of the agent should be much more, until 2% protected material weight.
  • the stabilizing disinfectant agents by grinding it to a dry power is too complicated, it may be more practical to add it to the kiln-mixer in the form of a solution, suspension or emulsion.
  • a liquid is made with the agent. Then one, several or all fillers are moistened. After this, the component is loaded into the existing kiln- mixer with the help of the weigh feeder. It is necessary to install an additional metering pump in the technological line before a filler hopper, or before the kiln- mixer stage in order to complete the process.
  • the additive is not heat resistant to bear temperatures in the asphalt plant's kiln- mixer, then it is expected to utilize it after the kiln-mixer stage.
  • the blender for fillers and bitumen in the existing plant is the optimum equipment for this operation.
  • the temperature of the bitumen is 160 0 C
  • fillers are entered in after hot drying and also have a high temperature - about 250° C. Therefore, the additive must stand the temperature.
  • the additive is milled as much as possible into a fine powder to make the mixture more homogeneous. Water can bloat bitumen in the process of asphalt- concrete manufacture. Therefore, the additive has to be dehydrated by heating or chemically.
  • the same additive disinfectant agents can be loaded into a bitumen compound. The finer the powder, the more accessible the additive becomes. Then this powder is uniformly added to the bitumen, which has been warmed until it is in a fluid condition, and this admixture is carefully mixed. It is essential that the material has potent adhesive properties.
  • Another possible method of introducing the additive into the bitumen is to mix additive solutions with the bitumen.
  • the additive is diluted in a solvent and mixed with bitumen. Afterwards the solvents usually evaporate, but the additive remains in the protected material. Lesser heat resistance is required in such a process, but an ability to dissolve in a substance compatible with a solvent and bitumen is an essential characteristic.
  • This method can be used for prolongation of the service life of materials £road coatings) which are already in use. Destruction of existing asphalt road coverings begins with the location of cracks and potholes. In these places, fixed settlements of gradually expanding microorganisms begin to destroy all of the covering.
  • additive disinfectant material is loaded in the places where the beginning of deterioration has become apparent. A powder of the disinfectant additive material is dusted or sprayed, or the location can be moistened with the disinfectant liquid material. If necessary this place is left to dry. After this stage takes place, the defect is sealed with new melted material, for example bitumen, or alternatively the surface layer where the additive was added is melted down and resolution of the defect is completed. In these ways, minor defects can be resolved.
  • Specified operations of repair also allow the disbursement of the component in small amounts; to fix the additive material in the necessary place; and to prevent its' release into the environment. The same procedures are applied for repair as the bitumen compound begins to collapse.
  • the proposed method can be applied in those cases when a factory is not equipped with devices for the loading of the disinfectant additive material in a mix during its' manufacture. In this case, it is necessary to lay this additive between layers of asphalt during its' stacking, for example, and place it on the surface of the first asphalt layer before the stacking of the second layer. Such use of the additive is less effective in the defense of imminent destruction of the asphalt, but it is better to proceed with this method, instead of leaving the asphalt without total protection. It is similarly possible to introduce the additive between layers of bitumen compound, and other materials containing organic components.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Architecture (AREA)
  • Wood Science & Technology (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Road Paving Structures (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention a trait à un procédé et à une composition permettant d'améliorer les propriétés des enduits pour les routes comprenant de l'asphalte (autres noms : béton bitumeux, asphalte pour surface de roulement, bitume routier, macadam bitumeux) et/ou du bitume (autres noms : mastic d'asphalte, mastic asphaltique, mastic d'étanchéité à base d'asphalte, bitumastic, produit d'étanchéité, composé adhésif d'asphalte, matière de revêtement d'asphalte, mastic de toit, asphalte). De tels matériaux sont connus et souvent utilisés dans la construction des routes et dans l'industrie. Cependant, ces matériaux ont une durabilité relativement faible. Ces matériaux se dégradent rapidement sur la surface des routes en raison des influences de l'environnement. Le procédé proposé permet un ralentissement de la dégradation de l'enduit pour les routes. Ceci est obtenu en ajoutant une quantité relativement petite d'adjuvant antimicrobien/antibactérien dans le mélange destiné à recouvrir et/ou réparer la surface de roulement. La composition et le procédé sont également adaptés pour d'autres applications industrielles.
PCT/IL2006/001079 2006-09-14 2006-09-14 Procédé permettant d'augmenter la durabilité d'un enduit asphaltique et d'un mastic pour bitume WO2008032303A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IL2006/001079 WO2008032303A1 (fr) 2006-09-14 2006-09-14 Procédé permettant d'augmenter la durabilité d'un enduit asphaltique et d'un mastic pour bitume

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IL2006/001079 WO2008032303A1 (fr) 2006-09-14 2006-09-14 Procédé permettant d'augmenter la durabilité d'un enduit asphaltique et d'un mastic pour bitume

Publications (1)

Publication Number Publication Date
WO2008032303A1 true WO2008032303A1 (fr) 2008-03-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2006/001079 WO2008032303A1 (fr) 2006-09-14 2006-09-14 Procédé permettant d'augmenter la durabilité d'un enduit asphaltique et d'un mastic pour bitume

Country Status (1)

Country Link
WO (1) WO2008032303A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110041717A (zh) * 2019-03-27 2019-07-23 深圳市吴越物流有限公司广州分公司 一种沥青温拌剂的制备方法
CN115418108A (zh) * 2022-09-30 2022-12-02 苏州卓宝科技有限公司 一种改善耐霉菌腐蚀性的沥青胶料及制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1328310A (en) * 1914-12-07 1920-01-20 Willite Road Construction Comp Asphaltic pavement and foundation for pavements

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1328310A (en) * 1914-12-07 1920-01-20 Willite Road Construction Comp Asphaltic pavement and foundation for pavements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110041717A (zh) * 2019-03-27 2019-07-23 深圳市吴越物流有限公司广州分公司 一种沥青温拌剂的制备方法
CN115418108A (zh) * 2022-09-30 2022-12-02 苏州卓宝科技有限公司 一种改善耐霉菌腐蚀性的沥青胶料及制备方法
CN115418108B (zh) * 2022-09-30 2024-02-06 苏州卓宝科技有限公司 一种改善耐霉菌腐蚀性的沥青胶料及制备方法

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