WO2016016320A1 - Procede de transport et/ou de stockage de bitume routier - Google Patents
Procede de transport et/ou de stockage de bitume routier Download PDFInfo
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- WO2016016320A1 WO2016016320A1 PCT/EP2015/067409 EP2015067409W WO2016016320A1 WO 2016016320 A1 WO2016016320 A1 WO 2016016320A1 EP 2015067409 W EP2015067409 W EP 2015067409W WO 2016016320 A1 WO2016016320 A1 WO 2016016320A1
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- bitumen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/092—Polycarboxylic acids
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/22—Compounds containing nitrogen bound to another nitrogen atom
- C08K5/24—Derivatives of hydrazine
- C08K5/25—Carboxylic acid hydrazides
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07G—COMPOUNDS OF UNKNOWN CONSTITUTION
- C07G1/00—Low-molecular-weight derivatives of lignin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/20—Mixtures of bitumen and aggregate defined by their production temperatures, e.g. production of asphalt for road or pavement applications
- C08L2555/22—Asphalt produced above 140°C, e.g. hot melt asphalt
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/20—Mixtures of bitumen and aggregate defined by their production temperatures, e.g. production of asphalt for road or pavement applications
- C08L2555/26—Asphalt produced between 65°C and 100°C, e.g. half warm mix asphalt, low energy asphalt produced at 95°C or low temperature asphalt produced at 90°C
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
- C08L2555/60—Organic non-macromolecular ingredients, e.g. oil, fat, wax or natural dye
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
- C08L2555/80—Macromolecular constituents
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- 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
- the present invention relates to a method for transporting and / or storing a road bitumen.
- the present invention also relates to the use of bitumen bread according to the invention as road binder and their use for the manufacture of asphalt.
- bitumen used in construction, mainly for the manufacture of road pavements or in industry, for example for roofing applications. It is generally in the form of a highly viscous black material, even solid at room temperature, which becomes fluid upon heating.
- bitumen is stored and transported hot, in bulk, in tanker trucks or by boats at high temperatures in the range of 120 ° C to 160 ° C.
- the storage and transport of hot bitumen has certain disadvantages.
- the transport of hot bitumen in liquid form is considered dangerous and it is very framed from a regulatory point of view. This mode of transport presents no particular difficulties when the equipment and the transport infrastructures are in good condition.
- bitumen may become viscous during a trip too long. Delivery distances for bitumen are therefore limited.
- maintaining the temperature of the bitumen for a given period may affect the properties of the bitumen, including the aging properties and thus change the final performance of the mix.
- cold storage and transport solutions have been developed. This mode of transportation of cold-packaged bitumen represents only a small fraction of the quantities transported worldwide, but it corresponds to very real needs for geographical regions of difficult and expensive access by traditional means of transport.
- bitumen at ambient temperature in metal drums By way of example, mention may be made of the transport of bitumen at ambient temperature in metal drums. This means is increasingly questionable from an environmental point of view because the cold bitumen stored in the barrels must be reheated before use as a road binder. However, this operation is difficult to implement for this type of packaging and the casks constitute a waste after use. On the other hand, the storage of cold bitumen in drums leads to losses because the bitumen is very viscous and part of the product remains on the walls of the drum when transferring to the tanks of the production units of the mix. As for handling and transporting bituminous products in these drums, they may be difficult and dangerous if specialized drum handling equipment is not available at the carriers or where the bitumen is used.
- bituminous products in paper or thermoplastic bags such as polypropylene or polyethylene
- US patent application 2011/0290695 describes a system for dispensing and packaging bituminous products in block form.
- Each block of bitumen is surrounded by a film of bituminous composition consisting of about 10 to 30% by weight of natural bitumen and about 5 to 25% by weight of a synthetic elastomer and copolymers.
- the bituminous composition film is melted with the bituminous product and is fully compatible with the molten bitumen.
- bituminous products packaged in the form of paper bags or of thermoplastic material can flow during their handling, storage and transport, because the bags or the films made of thermoplastic material can be pierced, increasing the risk of deformation and leakage especially when the outside temperature is high.
- the bags or films of thermoplastic material are pierced, the bitumen flows and the bags or blocks surrounded by thermoplastic film stick together. The handling of the bags or blocks surrounded by thermoplastic material film thus deteriorated becomes impossible, which renders them unusable.
- the object of the present invention is to provide an improved method of transport and / or cold storage.
- Another object of the invention is to provide a method for easy handling of road bitumen during handling operations.
- the subject of the invention relates to a method for transporting and / or storing cold road bitumen, said bitumen being transported and / or stored in the form of bitumen bread and comprising at least one chemical additive chosen from:
- R 1 is a linear or branched, saturated or unsaturated hydrocarbon-based chain containing from 4 to 68 carbon atoms, preferably from 4 to 54 carbon atoms, carbon, more preferably from 4 to 36 carbon atoms and z an integer ranging from 1 to 4, preferably from 2 to 4, and
- R and R ' which are identical or different, contain a saturated or unsaturated, linear or branched, cyclic or acyclic hydrocarbon-based chain containing from 1 to 22 carbon atoms and optionally comprising hetero atoms and / or rings having from 3 to 12; atoms and / or heterocycles having from 3 to 12 atoms;
- X contains a hydrocarbon chain, saturated or unsaturated, linear or branched, cyclic or acyclic, having from 1 to 22 carbon atoms and optionally comprising one or more heteroatoms and / or rings having from 3 to 12 atoms and / or heterocycles having from 3 to 12 atoms;
- n and m are integers independently of one another having a value of 0 or 1.
- road bitumen is understood to mean bituminous compositions consisting of one or more bitumen bases and comprising one or more chemical additives, said compositions being intended for a road application.
- the road bitumen is transported and / or stored at a temperature below 100 ° C.
- the transport and / or storage temperature corresponds to the ambient temperature.
- ambient temperature is meant the temperature which is reached during the transport and / or storage of the bitumen according to the invention without said bitumen being heated by any type of process. So the ambient temperature can reach high temperatures, below 100 ° C during summer periods, especially in hot climatic regions.
- the bitumen is transported and / or stored at a temperature between 20 ° C and 90 ° C, preferably between 20 ° C and 80 ° C, more preferably between 40 ° C and 80 ° C. ° C, more preferably between 50 ° C and 70 ° C, more preferably between 40 ° C and 60 ° C.
- the chemical additive is a compound of general formula (I): ## STR2 ## in which R 1 is a linear or branched, saturated or unsaturated hydrocarbon-based chain containing from 4 to 68 carbon atoms , preferably from 4 to 54 carbon atoms, more preferably from 4 to 36 carbon atoms and z an integer ranging from 1 to 4, preferably from 2 to 4.
- the compound is a diacid of general formula HOOC-C w H 2w -COOH wherein w is an integer ranging from 4 to 22, preferably from 4 to 12.
- the compound is a diacid chosen from the group consisting of adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid, acid 1, 2- dodecanedioic acid and tetradecanedioic acid.
- the chemical additive is a compound of general formula (II): R- (NH) n CONH- (X) m NHCO (NH) n -R 'wherein:
- R and R ' which are identical or different, contain a saturated or unsaturated, linear or branched, cyclic or acyclic hydrocarbon-based chain containing from 1 to 22 carbon atoms and optionally comprising hetero atoms and / or rings having from 3 to 12; atoms and / or heterocycles having from 3 to 12 atoms;
- X contains a hydrocarbon chain, saturated or unsaturated, linear or branched, cyclic or acyclic, having from 1 to 22 carbon atoms and optionally comprising one or more heteroatoms and / or rings having from 3 to 12 atoms and / or heterocycles having from 3 to 12 atoms;
- n and m are integers independently of one another having a value of 0 or 1.
- the compound comprises a hydrazide unit when n and m have a value of 0.
- the groups R and / or R ' which may be identical or different, comprise one or more aromatic mono- or polycyclic aromatic rings or heterocycles optionally substituted with one or more hydroxyl functions and / or one or more linear or branched saturated hydrocarbon chains having from 1 to 6 carbon atoms.
- the compound comprises two amide units when n has a value of 0 and m has a value of 1.
- the groups R and / or R ' which are identical or different, comprise an aliphatic hydrocarbon chain of 4 to 22 carbon atoms, in particular chosen from the groups C 4 H 9 , C 5 Hn and C 9. Hi 9, CnH 2 3, Ci 2 H 25, C17H35, C18H37, C 2 iH 43, C 22 H 4. 5
- the X group comprises an aliphatic hydrocarbon chain of 1 to 2 carbon atoms.
- the road bitumen comprises from 0.1% to 5% by weight, preferably from 0.5% to 4% by weight, more preferably from 0.5% to 2.5% by weight. of the chemical additive with respect to the total mass of said bitumen.
- the road bitumen comprises from 5% to 30% by weight, preferably from 6% to 28% by weight, more preferably from 7% to 26% by weight of the chemical additive. relative to the total mass of said bitumen.
- the road bitumen comprises between 0.05% and 15% by weight, preferably between 0.1% and 10% by weight, more preferably between 0.5% and 6% by weight, by weight. an olefinic polymer adjuvant.
- the object of the invention also relates to the use of bitumen bread as a road binder, said bitumen bar consisting of road bitumen as described in the process according to the invention.
- the bitumen roll is used for the manufacture of asphalt, said bitumen bit consisting of road bitumen as described in the process according to the invention.
- a road bitumen is prepared by bringing into contact:
- a road bitumen is prepared by bringing into contact:
- bitumen between 5% and 30% by weight, preferably between 6% and 28% by weight, more preferably between 7% and 26% by weight of the chemical additive relative to the total weight of said bitumen.
- the road bitumen when the road bitumen comprises between 5% and 30% by weight, preferably between 6% and 28% by weight, more preferably between 7% and 26% by weight of the chemical additive relative to the total mass of said bitumen, said road bitumen may also be called concentrated road bitumen.
- manufacturing temperatures of between 100 ° C. and 200 ° C., preferably between 140 ° C. and 200 ° C., more preferably between 140 ° C. and 170 ° C., and with stirring for a period of at least 10 ° C. minutes, preferably between 30 minutes and 10 hours, more preferably between 1 hour and 6 hours.
- manufactured temperature means the heating temperature of the bitumen base before mixing as well as the mixing temperature. The temperature and the duration of the heating vary according to the quantity of bitumen used and are defined by the standard NF EN 12594.
- bitumen bases that may be used according to the invention, mention may first be made of bitumens of natural origin, those contained in deposits of natural bitumen, natural asphalt or bituminous sands and bitumens originating from the refining of crude oil.
- the Bitumen bases according to the invention are advantageously chosen from bitumen bases originating from the refining of crude oil.
- the bitumen bases may be chosen from bitumen bases or mixture of bitumen bases derived from the refining of crude oil, in particular bitumen bases containing asphaltenes.
- the bitumen bases can be obtained by conventional processes for the manufacture of bitumen bases in a refinery, in particular by direct distillation and / or vacuum distillation of the oil.
- bitumen bases may optionally be visbroken and / or deasphalted and / or rectified in air.
- the various bitumen bases obtained by the refining processes can be combined with each other to obtain the best technical compromise.
- the bitumen base can also be a bitumen base for recycling.
- the bitumen bases may be bitumen bases of hard grade or soft grade.
- the bitumen bases according to the invention have a penetrability, measured at 25 ° C. according to the EN 1426 standard, between 5 and 300 1/10 mm, preferably between 10 and 100 1/10 mm, more preferably between 30 and 100 1 / 10 mm.
- the chemical additive may be a compound of the following general formula (I):
- R 1 is a linear or branched, saturated or unsaturated hydrocarbon-based chain comprising from 4 to 68 carbon atoms, preferably from 4 to 54 carbon atoms, more preferably from 4 to 36 carbon atoms, and z an integer varying from 1 to 4, preferably 2 to 4, more preferably 2.
- the group R 1 is preferably a linear and saturated hydrocarbon chain of formula C w H 2w with w an integer ranging from 4 to 22, preferably 4 at 12.
- the preferred diacids are as follows:
- the diacid is sebacic acid.
- the diacids may also be diacid dimers of unsaturated fatty acid (s), that is to say dimers formed from at least one unsaturated fatty acid, for example from a single fatty acid. unsaturated or from two different unsaturated fatty acids.
- the diacid dimers of unsaturated fatty acid (s) are conventionally obtained by intermolecular dimerization reaction of at least one unsaturated fatty acid (reaction of Diels Aid for example).
- Preferably, only one type of unsaturated fatty acid is dimerized. They derive, in particular, from the dimerization of an unsaturated fatty acid, in particular C 8 to C 34, especially C 12 to C 22 , in particular C 16 to C 20 , and more particularly C 18 .
- a preferred fatty acid dimer is obtained by dimerization of linoleic acid, which can then be partially or fully hydrogenated.
- Another preferred fatty acid dimer is obtained by dimerization of methyl linoleate. In the same way, it is possible to find triacids of fatty acids and tetracides of fatty acids, obtained respectively by trimerization and tetramerization of at least one fatty acid.
- the chemical additive may be a compound of the following general formula (II):
- R and R ' which are identical or different, contain a linear or branched, cyclic or acyclic saturated or unsaturated hydrocarbon-based chain containing from 1 to 22 carbon atoms and optionally comprising hetero atoms and / or rings having from 3 to 12 atoms and / or heterocycles having from 3 to 12 atoms;
- X contains a hydrocarbon chain, saturated or unsaturated, linear or branched, cyclic or acyclic, having from 1 to 22 carbon atoms and optionally comprising one or more heteroatoms and / or rings having from 3 to 12 atoms and / or heterocycles having from 3 to 12 atoms;
- n and m are integers independently of one another having a value of 0 or 1.
- the integer ma has a value of 0.
- the groups R- (NH) n CONH and NHCO (NH) n -R ' are covalently linked by a hydrazide bond CONH -NHCO-.
- the groups R and / or R ' which are identical or different, then comprise a group chosen from at least one hydrocarbon chain of at least 4 carbon atoms, at least one aliphatic ring of 3 to 8 atoms, at least one condensed polycyclic system. aliphatic, partially aromatic or wholly aromatic, each ring comprising 5 or 6 atoms, taken alone or as a mixture.
- the groups R and / or R ' which are identical or different, are linear, saturated hydrocarbon chains comprising from 4 to 22 carbon atoms.
- the integer ma has a value of 1.
- the group R, the group R 'and / or the group X then comprise a group chosen from at least one hydrocarbon chain of at least 4 atoms. of carbon, at least one aliphatic ring of 3 to 8 atoms, at least one aliphatic condensed polycyclic system, partially aromatic or wholly aromatic, each ring comprising 5 or 6 atoms, taken alone or as a mixture.
- the group X represents a saturated linear hydrocarbon chain comprising from 1 to 22 carbon atoms.
- the group X is selected from C2H4 groups, C 3 H 6.
- the group X can also be a cyclohexyl group or a phenyl group, the radicals R- (NH) n CONH- and NHCO (NH) n -R'- can then be in the ortho, meta or para position. Moreover, they can be in cis or trans position relative to each other.
- this ring may be substituted by groups other than the two main groups R- (NH) n CONH- and -NHCO (NH) n -R '.
- the group X may also comprise two or more fused aliphatic and / or aromatic rings or not.
- the group X is a group comprising two aliphatic rings connected by an optionally substituted C3 ⁇ 4 group, for example:
- the group X is a group comprising two aromatic rings connected by an optionally substituted CH 2 group, for example:
- urea derivatives including a particular urea 4,4'-bis (dodecylaminocarbonylamino) diphenylmethane which has the formula:
- Ci2H2 5 NHCONH-C6H4-CH2-C 6 H4-NHCONH-Ci2H2 5.
- the chemical additive is a compound of general formula (II) in which the integer n has a value of 0.
- diamides of which a preferred diamide is ⁇ , ⁇ '-ethylenedi (stearamide), C 17 H 5 -CONH-CH 2 -CH 2 -NHCO-C 17 H 35 .
- Hydrazide derivative may also be 2 ', 3-bis [[3- [3,5-di-tert-butyl-4-hydroxyphenyl] propionyl]] propionohydrazide,
- the road bitumen comprises from 0.1% to 5% by weight, preferably from 0.5% to 4% by weight, more preferably from 0.5% to 2.5%. in mass of the chemical additive with respect to the total mass of said bitumen.
- the road bitumen comprises from 5% to 30% by weight, preferably from 6% to 28% by weight, more preferably from 7% to 26% by weight of chemical additive with respect to the total mass of said bitumen.
- a road bitumen is prepared by bringing into contact:
- bitumen base between 0.1% and 5% by weight, preferably between 0.5% and 4% by weight, more preferably between 0.5% and 2.5% by weight of a chemical additive
- a road bitumen is prepared by bringing into contact:
- bitumen between 5% and 30% by weight, preferably between 6% and 28% by weight, more preferably between 7% and 26% by weight of the chemical additive relative to the total weight of said bitumen,
- the bitumen base and the chemical additive are as described above.
- the olefin polymer adjuvant is preferably selected from the group consisting of
- the ethylene / glycidyl (meth) acrylate copolymers are advantageously chosen from random or block copolymers, preferably random copolymers of ethylene and a monomer chosen from glycidyl acrylate and glycidyl methacrylate, comprising from 50% to 99.7% by weight, preferably from 60% to 95% by weight, more preferably 60% to 90% by weight of ethylene.
- the terpolymers are advantageously chosen from random or sequential terpolymers, preferably random, of ethylene, a monomer A and a monomer B.
- the monomer A is chosen from vinyl acetate and alkyl acrylates or methacrylates
- Monomer B is selected from glycidyl acrylate and glycidyl methacrylate.
- the ethylene / monomer A / monomer B terpolymers comprise from 0.5% to 40% by weight, preferably from 5% to 35% by weight, more preferably from 10% to 30% by weight of units derived from monomer A and from From 0.5% to 15% by weight, preferably from 2.5% to 15% by weight of units derived from monomer B, the remainder being formed from units derived from ethylene.
- the copolymers result from the grafting of a B monomer selected from glycidyl acrylate and glycidyl methacrylate onto a polymeric substrate.
- the polymer substrate consists of a polymer chosen from polyethylenes, in particular low density polyethylenes, polypropylenes, statistical or sequential copolymers, preferably random copolymers of ethylene and vinyl acetate, and statistical or block copolymers, preferably statistical copolymers.
- polyethylenes in particular low density polyethylenes, polypropylenes, statistical or sequential copolymers, preferably random copolymers of ethylene and vinyl acetate, and statistical or block copolymers, preferably statistical copolymers.
- ethylene and alkyl acrylate or methacrylate to C 6 comprising from 40% to 99.7% by weight, preferably from 50% to 99% by weight ethylene.
- Said graft copolymers comprise from 0.5% to 15% by weight, preferably from 2.5% to 15% by weight of grafted units derived from monomer B.
- the olefin polymer adjuvant is preferably selected from the terpolymers (b) ethylene / monomer A / monomer B described above.
- the additive polymer is selected from olefinic random terpolymers of ethylene, a monomer A chosen from acrylates or methacrylates of alkyl to C 6 and a monomer B selected from glycidyl acrylate and glycidyl methacrylate, comprising from 0.5% to 40% by weight, preferably from 5% to 35% by weight, more preferably from 10% to 30% by weight of units derived from monomer A and 0.5% by weight; at 15% by weight, preferably from 2.5% to 15% by weight of units derived from monomer B, the remainder being formed from units derived from ethylene.
- the bitumen comprises from 0.05% to 15% by weight, preferably from 0.1% to 10% by weight, more preferably from 0.5% to 6% by weight of the adjuvant olefinic polymer with respect to the total mass of said bitumen.
- the amounts of the chemical additive and, optionally, the olefinic polymer adjuvant are adjusted according to the nature of the bitumen base used.
- the desired penetrability is preferably between 20 and 45 1/10 mm and the target ball and ring softening temperature (TBA) is preferably greater than 90 ° C., provided that the penetrability is measured at 25 ° C. C according to EN 1426 and TBA according to EN 1427.
- the road bitumen comprises a combination of the chemical additive of formula (II) and the olefinic polymer adjuvant described above.
- the road bitumen as described above may also contain other known additives or other known bitumen elastomers such as SB (block copolymer of styrene and butadiene), SBS (styrene-butadiene block copolymer) copolymers. styrene), SIS (styrene-isoprene-styrene), SBS * (star styrene-butadiene-styrene block copolymer), SBR (styrene-b-butadiene rubber), EPDM (modified ethylene propylene diene). These elastomers may also be crosslinked according to any known process, for example with sulfur.
- SB block copolymer of styrene and butadiene
- SBS styrene-butadiene block copolymer copolymers.
- SIS styrene-isoprene-styrene
- SBS * star
- the road bitumen consists solely of one or more bitumen bases and one or more chemical additives as described above.
- the object of the invention relates to a method for transporting and / or storing a cold road bitumen, said bitumen being transported and / or stored in the form of bitumen roll.
- the bitumen is as described above.
- transport and / or cold storage transport and / or storage at a temperature below 100 ° C, preferably at an ambient temperature below 100 ° C.
- the temperature is preferably between 20 ° C and 90 ° C, preferably between 20 ° C and 80 ° C, more preferably between 40 ° C and 80 ° C, more preferably between 50 ° C and 70 ° C, more preferably between 40 ° C and 60 ° C.
- Bitumen bit means a block of road bitumen having a mass of between 1 kg and 1000 kg, preferably between 1 kg and 200 kg, more preferably between 1 kg and 50 kg, still more preferably between 5 kg and 25 kg. kg, more preferably between 10 kg and 30 kg, said block being advantageously parallelepipedic, preferably being a block.
- the bitumen roll preferably has a volume of between 1000 cm 3 and 50000 cm 3 , preferably between 5000 cm 3 and 25000 cm 3 , more preferably between 10000 cm 3 and 30000 cm 3 , even more preferably between 14000 cm 3 and 25000 cm 3 .
- the mass of bitumen bread can vary from 1 to 20 kg, and from 20 to 50 kg in the case of handling by two people.
- the mass of bitumen bread can vary from 50 to 1000 kg.
- Bitumen bread is made from road bitumen as described above according to any process known industrially, for example by extrusion, by molding, or according to the manufacturing method described in document US2011 / 0290695.
- the bitumen roll is advantageously packaged with a hot-melt film according to any known method, preferably with a polypropylene film, polyethylene film or a mixture of polyethylene and polypropylene.
- the bitumen packaged in bitumen roll packaged with a hot-melt film has the advantage of being ready for use, that is to say that it can be directly heated in the melter without prior unpacking or possibly introduced directly into the melter. asphalt paving plant.
- the hot melt material melting with the bitumen does not affect the properties of said bitumen.
- Bitumen bread may also be packaged in a carton according to any known method.
- bitumen cake is packaged in a carton by hot casting the bitumen in a carton whose wall of the inner face is silicone and then cooled, the dimensions of the carton being adapted to the weight and / or volume of the bitumen bread wish.
- bitumen roll according to the invention When the bitumen roll according to the invention is packaged with a hot-melt film or is packaged in a carton, the applicant has demonstrated that the deterioration of said hot-melt film or said carton during transport and / or cold storage of said bitumen bread did not cause the flow of bitumen. Therefore, the bitumen rolls according to the invention retain their original shape and do not stick to each other during their transport and / or cold storage despite the fact that the hot melt film or cardboard is damaged.
- the absence of leakage of the bitumen in the form of bread during its transport and / or cold storage is due to the presence of at least one chemical additive of formula (I) or (II) within the bitumen.
- the object of the invention also relates to the use of bitumen bread as described above as a road binder.
- bitumen cake according to the invention is composed of concentrated road bitumen, it is melted and then diluted with at least one other non-additive bitumen base in order to obtain a road bitumen that can be used as a road binder.
- the road binder can in turn be used to manufacture asphalt mixes, in combination with aggregates according to any known method.
- Bituminous mixes are used as materials for the construction and maintenance of pavement bodies and their pavement, as well as for the realization of all road works. For example, superficial coatings, hot mixes, cold mixes, cold mixes, low emulsions, base layers, binding, hooking and rolling, and other combinations of an asphalt binder and road aggregate having particular properties, such as anti-rutting layers, draining asphalts, or asphalts (mixing between a binder and sand-like aggregates).
- bitumen rolls according to the present invention are remarkable in that they allow the transport and / or the storage of cold road bitumen under optimal conditions, in particular without creep of said loaves during their transport and / or storage, even when the ambient temperature is high and without degrading the properties of said road bitumen for road application, or even improving them.
- B 0 a 35/50 grade bitumen base, denoted B 0 having a penetrability P 25 34 1/10 mm and a TBA of 54.4 ° C and commercially available under the TOTAL group AZALT ® mark;
- B 5 a 50/70 grade bitumen base, denoted B 5 having a penetrability P 25 58 1/10 mm and a TBA of 52 ° C and commercially available from TOTAL group under the AZALT ® mark;
- bitumen base of grade 50/70 denoted B 6 , having a penetrability P 25 of 55 1/10 mm and a TBA of 49.6 ° C and commercially available from the TOTAL group under the trademark AZALT ® ;
- B 7 having a penetrability P February 5 47 1/10 mm and a TBA of 66.4 ° C, commercially available from TOTAL group under the STYRELF ® brand ;
- bitumen base of grade 30/45 denoted B 8 , having a penetrability P 25 of 37 1/10 mm and a TBA of 81.2 ° C., commercially available from the TOTAL group under the trademark ALTEK PM 30/45 ® ;
- SB a styrene / butadiene diblock copolymer having a mass by weight of styrene of 30% relative to the weight of the copolymer, marketed by KRATON under the name Dl 184 A;
- Base bitumen B 0 95% 96,5% 98,6% 99,15% - - - - - - - -
- the amount of additive for each bitumen is adjusted so as to obtain bitumens of equivalent mechanical properties, especially a penetrability ⁇ 25 and a near TBA.
- bitumens are prepared in the following manner.
- bitumen Bi For bitumen Bi, it is introduced into a reactor maintained at 185 ° C. and stirred at
- bitumen B 2 For the bitumen B 2 , the bitumen base Bo is introduced into a reactor maintained at 165 ° C. with stirring at 300 rpm. The Fischer-Tropsch wax is then introduced into the reactor. The contents of the reactor are maintained at 165 ° C. with stirring at 300 rpm for 1 hour.
- bitumen base Bo Preparations of B 3 and B 4 bitumens are carried out by first introducing the bitumen base Bo into a reactor at 160 ° C with stirring at 300 rpm. Sebacic acid (B 3 ) or hydrazide (B 4 ) is then added in the form of granules. The mixtures are stirred for about 1 hour at 160 ° C to obtain a homogeneous final appearance. The mixtures are cooled to room temperature.
- the preparations of the B 9 and Bi 0 bitumens are prepared from the bitumen base B 5 in the same way as the preparation of bitumen B 3 .
- bitumen Bu is prepared from the bitumen base Be in the same way as the preparation of bitumen B 3 .
- Bi 2 bitumen For Bi 2 bitumen, it is introduced into a reactor maintained at 160 ° C. and stirred at
- bitumen B 13 For bitumen B 13, are introduced into a reactor maintained at 160 ° C and with stirring at 300 revolutions / min, the base bitumen B 8, and then the acid is added. The mixture is stirred for about 1 hour at 160 ° C to obtain a homogeneous final appearance. The mixture is cooled to room temperature.
- the preparations of the B 14 and B 15 bitumens are prepared from the bitumen base B 5 in the same manner as the B3 bitumen preparation.
- B 0 and B 3 bitumens as well as B 5 and B 9 bitumens were studied according to the following protocol: B 0 , B 3 , B 5 and B 9 undergo a first aging according to the method RTFOT (Rolling Thin Film Oven Test) as described in standard NF EN 12607-1 and then are subjected to a second test based on the principle of the PAV (Pressure Aging Vessel) test as described in ASTM D6521.
- RTFOT Rolling Thin Film Oven Test
- the B 3 and B 9 bitumens respectively have aging resistance properties equivalent to non-additive bitumen bases B 0 and B 5 .
- the viscosity values of the B 3 and B 9 bitumens remain almost identical, respectively, with respect to those of the bitumen bases B 0 and B 5 .
- the workability of the B 3 and B 9 hot bitumens therefore remains unchanged respectively with respect to the bitumen bases B 0 and B 5 .
- the properties of the B 3 and B 9 bitumens according to the invention are not affected after RTFOT aging.
- the RTFOT test shows that the penetrabilities decrease less in the B 3 and B 9 bitumens than in the starting bitumen bases B 0 and B 5 , respectively, after simulated aging.
- bitumen bases B 0 and B 5 do not modify their properties and thus makes it possible to obtain a binder having the necessary specifications for a road application.
- Bitumen breads Pi P 5 and P 9 P 5 are prepared from the bitumen Bi to B 5 and B 5 9 Bi respectively according to the following method.
- a mass of about 0.5 kg of bitumen is cast at 160 ° C in a rectangular steel mold covered with a heat-fusible polyethylene film. The mold is then cooled to room temperature and then demolded.
- a bit of Pie bitumen is industrially prepared by molding from bitumen B 9 .
- Blocks of bitumen Pi 7 and Pi 8 are respectively prepared from concentrated bituminous bars P 14 and P 15 .
- bitumen bread P 7 For the bitumen bread P 7, P 14 bread bitumen is melted and then mixed with B5 50/70 grade bitumen previously heated to 160 ° C. The mixture thus obtained is stirred for about 1 hour at 160 ° C to obtain a homogeneous final appearance, then cast at 160 ° C in a rectangular steel mold covered with a polyethylene hot melt film. The mold is then cooled to room temperature and then demolded.
- Bread bitumen Pi 7 thus obtained comprises about 1.5% sebacic acid, that is to say that the weight ratio of the mixture of bread P 14 and B5 bitumen is 1/5.
- Pis bitumen bread is obtained in the same manner as the bitumen bread Pi 7 from a mixture of bitumen bread P 15 and bitumen B 5 with a weight ratio of the mixture of 15 P bread and bitumen B 5 of 1 / 16.6.
- Creep test A qualitative creep test is carried out beforehand.
- the loaves of bitumen Pi to P5 and P 9 to P 13 thus obtained are placed in incubators at different temperatures and under a load of 3.65 kg (+/- 50 g) to simulate the stacking of the loaves on each other. other, during transport and / or storage. Indeed, it is estimated that 6 loaves are stacked vertically on a pallet during the transport and / or storage of the bitumen bars. Therefore, the load of 3.65 kg (+/- 50 g) corresponding to the load applied to a block of 500 g is approximately equivalent to the load applied to a block of 25 kg in a pallet containing 40 blocks and having a mass total of about 1000 kg.
- M being the load or about 1000 kg
- g being the gravitational constant of 9.81 m-s 2
- S is the surface of the pallet is 1.21 m 2
- n is the number of blocks in the pallet is 40 .
- the blocks are first placed in an oven at a temperature of 40 ° C. If no creep is observed after a certain time, at most after 3 weeks, new loaves are molded and placed at an oven temperature of 50 ° C for at least 7 days. This operation is repeated by increasing the temperature from 10 ° C to a maximum temperature of 80 ° C if no creep is observed, or up to the temperature where a large creep breads is observed if said temperature is below 80 ° C. Creep results visually in deformation of the loaves and flow of the bitumen.
- bitumen rolls P 3 and P 4 as well as the bitumen rolls P9 to P 13 and Pi 6 according to the present invention do not flow under conventional storage and / or transport conditions.
- This test is carried out in order to evaluate the deformation resistance of each bit of bitumen P 1 to P 5 , P 7 and P 8 obtained respectively from the bitumen bases B 7 and B 8 as well as P 9 to P 13 , Pi 7 and Pis when it is subjected to a load and at a temperature of 50 ° C.
- the creep resistance test itself is carried out using a texture analyzer sold under the name LF Plus by the company LLOYD Instruments and equipped with a thermal enclosure. To do this, a cylindrical metal box containing a mass of 60 g of bitumen cake is placed inside the thermal chamber set at a temperature of 50 ° C. for 3 hours.
- the piston of the texture analyzer is a cylinder with a diameter of 20 mm and a height of 60 mm.
- the cylindrical piston is initially placed in contact with the upper surface of the bitumen cake. Then, it moves vertically downwards, at a constant speed of 1 mm / min, over a calibrated distance of 10 mm so as to exert a compressive force on the upper surface of the bitumen roll.
- the texture analyzer measures the maximum compressive force applied by the piston to the bitumen roll at 50 ° C.
- the measurement of the maximum compressive strength makes it possible to evaluate the ability of the bitumen roll to resist deformation. Thus, the greater this strength, the better the resistance to deformation of the bitumen bread.
- bitumen bread is sufficiently resistant to creep when the maximum compressive force is at least 15 N at 50 ° C. This value of the maximum compressive force is equivalent to the conditions of transport and / or storage of the bitumen bars at temperatures of at least 50 ° C.
- the loaves P 3 , P 4 , P 9 to Pu according to the invention are particularly resistant to creep compared to control bits of bitumen Pi, P 2 and P 5 . It is the same for bits of bitumen Pi 2 and P 13 , which are particularly resistant compared to control bitumen breads P 7 and P 8 .
- the bread P 4 containing the hydrazide and the bread Pu are remarkable insofar as the maximum compressive forces are respectively about 25 times greater and about 70 times greater than that respectively applied to the Pi bitumen breads control or P 2 and P 7 which will tend to flow during their transport or storage, especially at temperatures greater than or equal to 40 ° C, preferably greater than or equal to 50 ° C, more preferably greater than or equal to 60 ° C .
- bitumen bars Pi 7 and Pi 8 are creep resistant at temperatures of at least 50 ° C since their maximum compressive force is greater than 15 N, i.e. , 5N and 19N.
- the compression forces of bitumen bars Pi 7 and Pi 8 are at least 5 times greater than the compression force of the control bitumen bread P5.
- Pi 7 and Pi 8 bitumen loaves obtained by a so-called “indirect” route do not flow during their transport or storage, especially at temperatures greater than or equal to 40 ° C, preferably greater than or equal to 50 ° C, more preferably greater than or equal to 60 ° C unlike the control bitumen bread P5.
- bitumen rolls according to the invention do not stick to each other and keep their shape and consistency even at high ambient temperature.
- transport and / or storage are optimized for the bitumen rolls according to the invention, with facilitated handling, secure and minimized bitumen losses.
- Asphalt En, E 3 , E 5 and E 9 were prepared respectively from the bitumens B 0 , B 3 , B 5 and B 9 .
- the mixes E 0 , E 3 , E 5 and E 9 comprise respectively 5.4% by weight of bitumen B 0 , B 3 , B 5 and B 9 and 94.6% by weight of aggregates, said percentages being calculated by relative to the mass of bituminous mix.
- the mixes are prepared by mixing bitumens and aggregates at 165 ° C according to a conventional method.
- the asphalt mixes according to the invention as road binder have identical properties compared to the mixes of the prior art E 0 and E 5 .
- the addition of one or more additives according to the invention in a bitumen does not affect the properties of the mixes made from such bitumen.
- the void contents are comparable for E 0 and E 3 as well as for E 5 and E 9 , which reflects an equivalent workability.
- This observation is consistent since the B 0 and B 3 bitumens as well as the B 5 and B 9 bitumens have comparable viscosities between 120 ° C and 160 ° C (see Table 3).
- the resistance values r and R are higher for the mixes E 3 and E 9 than for the mixes E 0 and E 5 .
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
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Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MA39894A MA39894B1 (fr) | 2014-08-01 | 2015-07-28 | Procede de transport et/ou de stockage de bitume routier |
| CN201580046478.0A CN107075169A (zh) | 2014-08-01 | 2015-07-29 | 用于运输和/或储存道路沥青的方法 |
| EP15752943.9A EP3174926B1 (fr) | 2014-08-01 | 2015-07-29 | Procede de transport et/ou de stockage de bitume routier |
| CA2956868A CA2956868C (fr) | 2014-08-01 | 2015-07-29 | Procede de transport et/ou de stockage de bitume routier |
| US15/501,040 US10683421B2 (en) | 2014-08-01 | 2015-07-29 | Method for the transportation and/or storage of road bitumen |
| ZA2017/00726A ZA201700726B (en) | 2014-08-01 | 2017-01-30 | Method for the transportation and/or storage of road bitumen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1457537A FR3024454B1 (fr) | 2014-08-01 | 2014-08-01 | Procede de transport et/ou de stockage de bitume routier |
| FR1457537 | 2014-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016016320A1 true WO2016016320A1 (fr) | 2016-02-04 |
Family
ID=51787098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2015/067409 Ceased WO2016016320A1 (fr) | 2014-08-01 | 2015-07-29 | Procede de transport et/ou de stockage de bitume routier |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US10683421B2 (fr) |
| EP (1) | EP3174926B1 (fr) |
| CN (1) | CN107075169A (fr) |
| CA (1) | CA2956868C (fr) |
| FR (1) | FR3024454B1 (fr) |
| MA (1) | MA39894B1 (fr) |
| WO (1) | WO2016016320A1 (fr) |
| ZA (1) | ZA201700726B (fr) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018046836A1 (fr) | 2016-09-08 | 2018-03-15 | Total Marketing Services | Composition bitumineuse pour enrobes a module eleve |
| WO2018104658A1 (fr) | 2016-12-07 | 2018-06-14 | Total Marketing Services | Compositions huileuses solides |
| WO2018104659A1 (fr) | 2016-12-07 | 2018-06-14 | Total Marketing Services | Liants solides |
| WO2020120314A1 (fr) | 2018-12-10 | 2020-06-18 | Total Marketing Services | Composition bitumineuse solide à température ambiante |
| WO2020120407A1 (fr) | 2018-12-12 | 2020-06-18 | Total Marketing Services | Bitume solide a temperature ambiante |
| WO2020187580A1 (fr) | 2019-03-18 | 2020-09-24 | Total Marketing Services | Composition bitumineuse solide à température ambiante |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3051476B1 (fr) | 2016-05-23 | 2020-01-31 | Total Marketing Services | Bitume solide a temperature ambiante |
| FR3051477B1 (fr) | 2016-05-23 | 2018-06-15 | Total Marketing Services | Bitume solide a temperature ambiante |
| FR3061190B1 (fr) * | 2016-12-22 | 2022-05-27 | Total Marketing Services | Liant solide a temperature ambiante |
| FR3061191B1 (fr) | 2016-12-22 | 2019-05-24 | Total Marketing Services | Composition d’asphalte coule pour la realisation de revetements |
| US12497566B2 (en) * | 2021-02-08 | 2025-12-16 | Philergos Group Foundation | Solid formations of non-volatile bituminous materials suitable for reducing carbon dioxide emissions during transport |
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- 2015-07-29 CN CN201580046478.0A patent/CN107075169A/zh active Pending
- 2015-07-29 CA CA2956868A patent/CA2956868C/fr active Active
- 2015-07-29 WO PCT/EP2015/067409 patent/WO2016016320A1/fr not_active Ceased
- 2015-07-29 US US15/501,040 patent/US10683421B2/en active Active
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018046836A1 (fr) | 2016-09-08 | 2018-03-15 | Total Marketing Services | Composition bitumineuse pour enrobes a module eleve |
| WO2018104658A1 (fr) | 2016-12-07 | 2018-06-14 | Total Marketing Services | Compositions huileuses solides |
| WO2018104659A1 (fr) | 2016-12-07 | 2018-06-14 | Total Marketing Services | Liants solides |
| CN110050035A (zh) * | 2016-12-07 | 2019-07-23 | 道达尔销售服务公司 | 固体油质组合物 |
| CN110050035B (zh) * | 2016-12-07 | 2022-05-13 | 道达尔销售服务公司 | 固体油质组合物 |
| WO2020120314A1 (fr) | 2018-12-10 | 2020-06-18 | Total Marketing Services | Composition bitumineuse solide à température ambiante |
| WO2020120407A1 (fr) | 2018-12-12 | 2020-06-18 | Total Marketing Services | Bitume solide a temperature ambiante |
| FR3090001A1 (fr) | 2018-12-12 | 2020-06-19 | Total Marketing Services | Bitume solide à température ambiante |
| WO2020187580A1 (fr) | 2019-03-18 | 2020-09-24 | Total Marketing Services | Composition bitumineuse solide à température ambiante |
Also Published As
| Publication number | Publication date |
|---|---|
| MA39894B1 (fr) | 2018-12-31 |
| EP3174926B1 (fr) | 2022-07-20 |
| EP3174926A1 (fr) | 2017-06-07 |
| MA39894A1 (fr) | 2017-07-31 |
| FR3024454A1 (fr) | 2016-02-05 |
| FR3024454B1 (fr) | 2016-08-19 |
| CA2956868A1 (fr) | 2016-02-04 |
| US20170218177A1 (en) | 2017-08-03 |
| US10683421B2 (en) | 2020-06-16 |
| CA2956868C (fr) | 2023-02-14 |
| CN107075169A (zh) | 2017-08-18 |
| ZA201700726B (en) | 2020-01-29 |
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