WO2006107179A2 - Compositions et procedes de fabrication de modificateurs de l'asphalte artificiel ayant une fonctionnalite complexe - Google Patents
Compositions et procedes de fabrication de modificateurs de l'asphalte artificiel ayant une fonctionnalite complexe Download PDFInfo
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- WO2006107179A2 WO2006107179A2 PCT/KR2006/001272 KR2006001272W WO2006107179A2 WO 2006107179 A2 WO2006107179 A2 WO 2006107179A2 KR 2006001272 W KR2006001272 W KR 2006001272W WO 2006107179 A2 WO2006107179 A2 WO 2006107179A2
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- WIPO (PCT)
- Prior art keywords
- bitumen
- composition
- weight
- components
- modifier
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- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229940117958 vinyl acetate Drugs 0.000 description 2
- ZGWYZROGCVTGMA-UHFFFAOYSA-N 1,2,5-tris(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOCC(C)(OOC(C)(C)C)CCC(C)(C)OOC(C)(C)C ZGWYZROGCVTGMA-UHFFFAOYSA-N 0.000 description 1
- XYYHNDVKALDFHQ-OXHZBIAZSA-N 1-octadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphoethanolamine zwitterion Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@H](COP(O)(=O)OCCN)OC(=O)CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CC XYYHNDVKALDFHQ-OXHZBIAZSA-N 0.000 description 1
- NFPBWZOKGZKYRE-UHFFFAOYSA-N 2-propan-2-ylperoxypropane Chemical group CC(C)OOC(C)C NFPBWZOKGZKYRE-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Chemical compound CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 1
- NEHDRDVHPTWWFG-UHFFFAOYSA-N Dioctyl hexanedioate Chemical compound CCCCCCCCOC(=O)CCCCC(=O)OCCCCCCCC NEHDRDVHPTWWFG-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
Definitions
- the present invention relates to compositions of bitumen modifiers which simultaneously reduce problems of high temperature plastic deformation and various cracks at low temperature that are generated on bitumen pavements at a region having hot weather in summer and cold weather in winter, and to methods for manufacturing thereof.
- the present invention is included in the technical field of improving performance and extending life span of pavements by applying a mixture of bitumen and modifiers to road pavements.
- Patent Applications on the technologies to use waste polymer resins.
- a meshed waste plastic is used as a part of aggregates in the process of manufacturing asphalt concrete
- Korean Patent No. 0122302 a plurality of dirty waste polymer resins having low melting point are collected, washed and formed into small particles, and these particles are heated and melted to be mixed with bitumen
- Korean Patent Application No. 1990-0003887 an unrecyclable waste polymer resin, which has been selected and separated, was melt mixed with bitumen using a heavy oil and a catalyst, to manufacture modified bitumen.
- the waste resins as mostly the thermoplastic waste resins (LDPE, HDPE, PP, etc.) of the above-mentioned inventions have problems in that the complements to the low temperature performance by elasticity is not considered in the invention, and thereby preferable pavement properties cannot be accomplished. That is, most of these patents only have aspects in recycling the waste resins, but the use of the waste resins as a low-cost functional material is not considered for solving the problems in performances (plastic deformation, various cracks, etc.) of the pavements.
- modified bitumen In most cases of conventional modified bitumen, one kind of main polymer or rubber is added to bitumen, and additional auxiliaries are added thereto.
- the modified bitumen has biased properties due to improvements in high temperature performance (Korean Patent Application No. 1997-0070122) or in low temperature performance (Korean Patent Application Nos. 1999-0079717, 2003-0046053, 2003-0039343 and 2002-0034496) separately depending on the added polymer resins.
- the modified bitumen is not suitable and generates pavement problems in early stage.
- bitumen and a polymer resin (or rubber) is pre-mixed well and reacted in the mixing tank of the bitumen production plant to form modified bitumen, and the modified bitumen is transferred to an asphalt concrete plant by a tank truck to be stored in a bitumen storing tank.
- the stored modified bitumen is transferred to a measuring tank by a pump, and the measured amount of the modified bitumen is sprayed to aggregates and fillers in a pug-mill mixer through spraying equipment.
- the mixture is mixed vigorously for 45 to 50 seconds to manufacture modified asphalt concrete.
- the manufactured modified bitumen has no problem when the viscosity thereof is low, but the disadvantages of such pre-mix type is that the, when its viscosity is very high, it is impossible to operate in transferring the modified bitumen by a tank truck and transferring from the tank truck to a storing tank of an asphalt concrete plant, and in transferring the modified bitumen from the storing tank to a measuring tank by a pump or spraying it into a pug-mill mixer from the measuring tank.
- a drainable bitumen pavement or a fatigue failure resistance bitumen pavement use of high viscosity modified bitumen is essential, thus the pre-mix type cannot be used.
- phase separation between the modified polymers and bitumen may be generated during transferring the modified bitumen in a tank truck or storing a long time in a storing tank of an asphalt concrete plant.
- the phase separation is generated the modified bitumen can no longer perform its functions.
- Korean Patent Application No. 1999-0079717 where modified bitumen is manufactured by the pre-mix type, low viscosity products are mainly produced avoiding high viscosity products due to difficulties in handling and transferring, and special attention is required on the phase separation of the product in transferring in a tank truck or storing a long time in a storing tank.
- a modifier to be mixed with bitumen is produced separately, transferred to an asphalt concrete plant, and an appropriate amount of the modifier is fed into a pug-mill mixer during mixing the aggregates, fillers and bitumen therein.
- This type has its merits in convenient transferring and handling, but it must satisfy both conditions of having the fed modifier be melt-mixed homogeneously with bitumen within a short mixing time (45 to 50 seconds) and having the homogeneously modified bitumen be coated onto all the surface of aggregates and fillers evenly.
- the conventional plant-mix type (Korean Patent Application No. 1999-0007510), in order to solve the above-mentioned problems, makes each component into fine powders (under 1 mm) so that the polymer composition may be melted in very short time. Therefore not only the plant-mix type requires additional process of pulverizing the components into powders, but also cannot avoid problems of material separation generated among each component due to differences in the particle size and density since a simple mixture of the pulverized components is the final product.
- Korean Patent Application No. 1999-0007510 a waste tire powder is simply mixed with a petroleum resin powder in an appropriate proportion and kept in a PE bag, and thus partial separation of the materials can be seen.
- a modifier for use in the plant-mix type is pre-produced, and the modifier is added to bitumen in appropriate amount and mixed well as in the pre-mix type to manufacture a bitumen- added modifier.
- This modified bitumen can be manufactured at a bitumen producing plant of an asphalt concrete plant.
- the manufactured modified bitumen is mixed with the aggregates in the pug-mill mixer of a batch tower to produce modified asphalt concrete.
- attention is required on the phase separation between bitumen and additives after manufacturing the modified bitumen.
- a great amount of filler can be included in the composition.
- compositions of bitumen modifiers having multifunctionality comprises at least one component from groups of a (waste or recycled) foamed polymer resin and a (waste, recycled or virgin) thermoplastic resin for improving the high temperature performance, i.e., plastic deformation resistance of bitumen pavements, at least one component from a group of (waste, recycled or virgin) elastomer having double bonds for improving the low temperature performance, i.e. various cracks resistance and at least one component from a group of a (waste, recycled or virgin) plasticizer for lowering melting point and viscosity of additives and increasing affinity with bitumen, by having each component mixed in suitable amounts.
- a (waste or recycled) foamed polymer resin and a (waste, recycled or virgin) thermoplastic resin for improving the high temperature performance, i.e., plastic deformation resistance of bitumen pavements
- at least one component from a group of (waste, recycled or virgin) elastomer having double bonds for improving the low temperature performance, i
- Waste materials are generally used for the constitutional materials of the compositions, but it is preferable to use recycled materials in the case where the waste materials are difficult to be obtained, or virgin materials as the last alternatives from the aspect of saving costs and improving properties of the materials by recycling wastes and using large amounts.
- bitumen modifiers of the invention is characterized in that the compositions are fed into a compounding machine (a banbury mixer, a compression kneader, a single or twin screw extruder), and under high temperature and pressure, the mixture is reacted by shear mixing vigorously to form a homogenous material.
- the material is passed through the extruder die of an extruder and prepared into particles. After freeze-drying, the particles are stored. The particles are packed in various bags including PE bags in predetermined portions to complete the modifier production. Disclosure of Invention Technical Problem
- the present invention uses a low-cost waste foamed polymer resin or waste polymer resin as much as possible, except for the inevitable case of using a virgin material.
- the use amount of the waste material can be increased to 3 to 30 wt% due to its low cost, while that of the virgin material is 3 to 8 wt%, based on the amount of a plasticizer.
- the improvements in properties of modified bitumen and the recycling effect of the industrial waste products can be achieved at the same time.
- a specific resin corresponding to the component of the composition according to the present invention is selectively used. As such, it is possible to manufacture an economically effective additive by using the waste products. Furthermore, a banbury mixer or a compression kneader mixer adopted for the first time in the present invention to manufacture additives can be used for mixing all forms of waste materials such as powders, films, particles, sheets, lumps and scraps, therefore using waste materials became convenient.
- the term "material for improving high temperature performance” stands for a thermoplastic polymer resin having relatively high glass transition temperature (-15 to +1O 0 C), and such materials are not deformed easily even when the temperature of the pavement is 6O 0 C or higher in summer, but melted to high viscosity liquid only when the temperature reaches 100 0 C or higher in general.
- the term "polymer for improving the low temperature performance” stands for a thermoplastic elastomer or rubber having double bonds.
- the glass transition temperature of these materials is generally in the range of -20 to -45 0 C; therefore the materials maintain the flexibility without becoming rigid at a temperature below O 0 C.
- the materials having flexibility in low temperature is excellent in crack resistance, thus it is suitable in cold regions since the low temperature performance of bitumen improves when mixed with the bitumen.
- the viscosity of the materials is lowered at a high temperature. Therefore there is a problem of generating plastic deformation easily.
- Vinyl acetate portion of an EVA copolymer is reacted with a thermoplastic elastomer having double bonds, while ethylene portion of EVA has affinity with PE (thermoplastic polymer), PE has affinity with wax component of bitumen, and starch which has affinity with bitumen and reduces melting point can be added to complete the composition for forming a homogeneous substance as a whole. Therefore, in the embodiment, PE and EVA as a thermoplastic polymer (for improving the high temperature performance), SBS and SBR as a thermoplastic elastomer having double bonds (for improving the low temperature performance), bitumen as a plasticizer, starch, organic fatty acid (for reducing melting point and for affinity) and the like can be a component of the composition.
- Another disadvantage of the plant-mix type is the matter of whether the additives are capable of melting instantly to be mixed suitably with bitumen to form a homogeneous material.
- the conventional method tries to solve the above-mentioned problems by pulverizing each components of the composition separately into fine powders and simply mixing the components in powder phase. This is because the smaller the particles are the easier the melting is to be carried out.
- a mixing chamber when feeding the fine powders into a mixing chamber, there may be a problem in homogeneous mixing of the components due to the floating powders that has not been dropped completely or difference in density between the powder and the aggregates.
- the melting point and the viscosity of the modifier are reduced and an appropriate amount of plasticizer is added to the composition so that the modifier is easily melted and at the same time well mixed with bitumen. Further, a great amount of filler is added thereto.
- the modifier is evenly coated with the filler, thus the problems of dropping completely or unevenly mixing can be solved.
- the filler is readily coated on the modifier during mixing, it is possible to mix the components in short time.
- the composition is formed into a single substance via the processes of manufacturing modifiers, and the substance is pulverized into fine particles to solve the above-mentioned problems. In the case where this method is not enough, the fine particles may be further pulverized into fine powders to solve the problems.
- the plasticizer of the inventions in general, must have relatively smaller molecular weight compared with polymers and excellent affinity with bitumen to achieve the desired object.
- bitumen is classified as a plasticizer; in fact, by using bitumen as a part of a plasticizer, the improvement in the affinity between a modifier and bitumen can be accomplished by the bitumen plasticizer contained in the modifier. Best Mode for Carrying Out the Invention
- the polymer resin is at least one component from a (waste or recycled) foamed polymer resin group and a (waste, recycled or virgin) thermoplastic polymer resin group.
- the use proportion of the polymer resins, when the whole amount is 100, is preferably 100 in the case of one component, 1-99 : 1-99 in the case of two components and 1-98 : 1-98 : 1-98 in the case of three components.
- the foamed polymer resin group is a foamed product having a form of crushed particles, scraps, sheets or lumps, and preferably includes at least one selected from LDPE (Low Density Polyethylene), HDPE (High Density Polyethylene), EVA (Ethylenevinylacetate), SBR (Styrenebutadiene Rubber), SBS
- LDPE Low Density Polyethylene
- HDPE High Density Polyethylene
- EVA Ethylenevinylacetate
- SBR Styrenebutadiene Rubber
- thermoplastic polymer resin group has a form of fine powders, particles, pallets, films, sheets or lumps, and preferably includes at least one selected from LDPE, HDPE, LLDPE (Linear Low Density Polyethylene), APP (Atactic Polypropylene), PS (Polystyrene), HIPS (High Impact Polystyrene), EVA, ABS (Acrylonitril Butadiene Styrene), CMC (Carboxymethylcellulose), PVA (Polyvinylacetate), PVC (Polyvinylchloride), Polybuten, Ethylene Bis-Stearamide (Bisamide wax) and Elvaloy.
- LDPE Low Density Polyethylene
- APP Acrylonitril Butadiene Styrene
- CMC Carboxymethylcellulose
- PVA Polyvinylacetate
- PVC Polyvinylchloride
- Polybuten Ethylene Bis-Stearamide (Bisamide wax) and Elvaloy.
- the elastomer includes at least one component from a (waste, recycled or virgin) elastomer group having double bonds, and the use proportion, when the whole amount is 100, is preferably 100 in the case of one component, 1-99 : 1-99 in the case of two components and 1-98 : 1-98 : 1-98 in the case of three components.
- the elastomer group having double bonds is any kind of thermoplastic elastomers and rubbers having a form of fine powders, particles, pellets, sheets or lumps, and preferably includes at least one selected from SBR, SBS, SEBS (Styrene-ethylene-butadiene-styrene), SIS (Styrene-isoprene-styrene), ABR Rubber (Acrylonitrile-butadiene Rubber), BR Rubber (Polybutadiene Rubber), SBR Latex, Polychloroprene Rubber, NBR (Nitrile Butadiene Rubber) Rubber, Butyl Rubber, EPDM (Ethylene-Propylene-Diene-Monomer) Rubber, Isoprene Rubber, Natural Rubber, Tire Rubber and Polyurethane.
- SBR SBS
- SEBS Styrene-ethylene-butadiene-styrene
- SIS Styrene-isoprene-styrene
- the above-mentioned plasticizer includes at least one component from a (waste, recycled or virgin) plasticizer group, and the use proportion, when the whole amount is 100, is preferably 100 in the case of one component, 1-99 : 1-99 in the case of two components and 1-98 : 1-98 : 1-98 in the case of three components.
- the plasticizer group preferably comprises at least one selected from various vegetable oils (soybean oil, corn oil, sesame oil, perilla oil, cotton seed oil, etc.), various animal oils (tallow, lard, dog oil, various fish oils, etc.), various animal and vegetable oils (various vegetable oils mixed with various animal oils), various organic acids (adipic acid, fumaric acid, oxalic acid, (anhydrous) maleic acid, (anhydrous) terephthalic acid, stearic acid, oleic acid, palmitic acid, etc.), hydrocarbon-based oils, DBP (Dibutylphthalate), DOP (Dioctyiphthalate), PPA (Polypropyleneadipate), pine tar, low molecular weight PE (Polyethylene), low molecular weight PP (Polypropylene), rosin, rosin salt, paraffin wax, microcrystalline wax, aromatic oil, heavy oil, aliphatic petroleum resin, aromatic petroleum resin, starch,
- various vegetable oils
- the chemical reaction agent is a combination of a reaction initiator, a reaction promoter and a molecular chain cleavage preventing agent, and the combination ratio is composed as 1 : 1-10 : 1-10, respectively.
- the reaction initiator is organic peroxides including at least one selected from DCP (Dicumyl peroxide), DBP (Dibenzoyl peroxide), MEKP (Methyl-ethyl-ketone Peroxide), t-butylperoxy benzoate, di-2-ethylhexylperoxy neodecanoate, t-butylperoxy pivalate, di-isopropylperoxy dicarbonate, bis(2,4-dichlorobenzoyl) peroxide, l,l-bis(t-butylperoxy)-3,3,5-trimethylcyclohexane,
- reaction promoter is a mixture of a metal oxide and a metal salt of stearic acid or oleic acid, and the mixture ratio is 1 : 1-5.
- the metal oxide includes at least one selected from calcium oxide, magnesium oxide, titanium oxide, zinc oxide, iron oxide, manganese oxide and copper oxide.
- the metal salt of stearic acid or oleic acid includes at least one selected from a calcium salt, a magnesium salt, a zinc salt, a manganese s alt, a copper salt and an iron salt of stearic acid or oleic acid. It is preferable that the molecular chain cleavage preventing agent includes at least on selected from sulfur, m- phenylenebismaleimide, high-l,2(high vinyl) polybutadiene, triallyl cyanurate, diallyl phthalate and ethylene diacrylate.
- the filler includes from 1 to 10 components among the components of a filler group, and the use proportion, when the whole amount is 100, is preferably 100 in the case of one component, 1-99 : 1-99 in the case of two components, 1-98 : 1-98 : 1-98 in the case of three components, 1-97 : 1-97 : 1-97 in the case of four components, 1-96 : 1-96 : 1-96 : 1-96 : 1-96 in the case of five components, 1-95 : 1-95 : 1-95 : 1-95 : 1-95 in the case of six components, 1-94 : 1-94 : 1-94 : 1-94 : 1-94 : 1-94 : 1-94 in the case of seven components, 1-93 : 1-93 : 1-93 : 1-93 : 1-93 : 1-93 : 1-93 in the case of eight components, 1-92 : 1-92 : 1-92 : 1-92 : 1-92 : 1-92 :
- the filler group includes at least one selected from carbon black, toner, bentonite, silica, clay, mica, lime stone powder, nylon filament, polyester filament, glass fiber and cellulose fiber.
- bitumen modifier having a multifunctionality comprising a step of preparing a composition of bitumen modifier having multifunctionality in the above-mentioned compositions and characteristics and a step of preparing a mixture by shear mixing vigorously the compositions under high temperature and pressure.
- the method for manufacturing a bitumen modifier having a multifunc- tionality comprising a step of pulverizing any one of the extrudates, which was extruded through the die nozzle, into particles in the size of 0.1 to 20 mm using a highspeed rotation blade, a step of freezing, drying and storing the prepared particle material with various methods and a step selected from packaging the stored particles in a packaging bag in predetermined amounts or further pulverizing the particles into fine powders in the size of 0.01 to 2 mm using various pulverizing equipments and then packaging.
- the use proportion when using at least one material from each group of the composition, is in the order of, from the largest, the main material that gives selected functions, the material that enhances this function and the material that supplements this function. Three or more can be used from each material group, but their efficacy is very small because the use proportions are small. Further, in the composition, a waste material is preferentially used, a recycled material is used in the case where the waste material is difficult to be obtained, and a virgin material is used as the last alternatives.
- the minimum weight value of each component of the composition represents the lowest value of the pre-mix type, and the maximum weight value represents the highest value of the plat-mix type. It is noted that bitumen for manufacturing modified bitumen is included in the plasticizer group. In the case of the plasticizer group, the minimum weight value represents the lowest value of the plant-mix type and the maximum weight value represents the highest value of the pre-mix type.
- the minimum weight value of the chemical reaction agent is a lowest value possible for reaction and the value exceeding the maximum weight value has no effect on the reaction.
- the minimum weight value of the filler group has very small effect on the reaction and the maximum weight value has poor processabiity due to high viscosity. Therefore, a composition capable for applying to both the pre- mix type and plant-mix type is provided by selecting suitable content of the components of the composition.
- the modified bitumen is manufactured by directly mixing the composition with bitumen.
- the compositions is adjusted such that the sum of the compositions excluding the plasticizer (bitumen) is 3 to 30 wt% of the content of the plasticizer in order to maintain the liquid phase, thereby the compositions excluding the plasticizer are added in a relatively small amount.
- bitumen the sum of the compositions excluding the plasticizer
- the minimum value of the compositions excluding the plasticizer represents the lowest value of the pre-mixed type, and the term "lowest value" herein means that when an amount less than the minimum amount of the compositions is added to the plasticizer, the compositions will not effect the reaction.
- the composition in the plant-mix type is a composition for manufacturing a modifier to be added together with the aggregates and bitumen, when they are introduced into a mixing chamber of a pug-mill mixer, for production of asphalt concrete at the asphalt concrete plant.
- the modifier is manufactured in solid phase instead of melted liquid phase.
- the bitumen included in the composition of modifier plays a role not as to manufacture modified bitumen, but as a plasticizer, which is a component of the modifier, to lower melting point and viscosity so that the melting is carried out instantly. For this reason, bitumen is included in the plasticizer.
- the modifier must be in solid phase which will not deform in ambient temperature, thus the content of the solid composition excluding the plasticizer is greater than that of the plasticizer.
- the maximum value of the compositions represents the highest value of the plant-mixed type, and the term "highest value” herein means that when an amount more than the maximum amount of the compositions is added to the plasticizer, the viscosity in the composition will increase, and thus have difficulties in manufacturing the modifier.
- Another reason for using bitumen as a plasticizer is to rapidly homogenize the modifier with bitumen, when the modifier is introduced into a pug-mill mixer having the aggregates and bitumen introduced therein at the asphalt concrete plant.
- a waste foamed resin does not melt under heat, but burns with flame at a higher temperature; thus, the waste foamed resin belongs to comparatively cost effective resins due to difficulties in finding its use.
- the waste foamed resin group is included in the polymer resins for improving the high performance in the modifier composition of the present invention together with the thermoplastic polymer group.
- Examples of the chemical component in the waste foamed polymer resin group include PE, EVA, SBR, SBS, PE+EVA, EVA+SBR, EVA+SBS, PE+EVA+SBR, PE+EVA+SBS and the like, and they exist in a form of scraps, pallets, sheets, lumps or the like.
- the symbol '+' is referred to as a polymer blending.
- thermoplastic polymer resin group for improving high temperature performance examples include LDPE (low density ploy ethylene), HDPE (high density polyethylene), LLDPE (linear low density polyethylene), PB (Polybutene), PVC (polyvinylchloride), PS (polystyrene), HIPS (high impact polystyrene), PVA (poly viny acetate), EVA (ethylene-vinylacetate copolymer) and the like, and these thermoplastic resins can be in any form of scraps, pallets, powders, sheets, films, lumps or the like.
- the elastomer group includes thermoplastic elastomer, (natural or synthesized) rubber or rubber powder in a form of powders, pallets, sheets, lumps or scraps.
- thermoplastic elastomer examples include SBS (Styrene-Butadiene-Styrene), SBR (styrene -butadiene rubber), SBR Latex, SEBS (styrene-ethylene-butadiene-styrene), SIS (styrene-isoprene-styrene) and the like
- examples of the rubber include Butyl rubber, ABR rubber (Acrylonitrile-butadiene Rubber), BR rubber (Polybutadiene Rubber), Polychloroprene rubber, Isoprene rubber, natural rubber, NBR rubber (Nitrile Butadiene Rubber), EPDM (Ethylene-Propylene-Diene-Monomer) rubber and the like
- examples of the rubber powder include the powders of the above-mentioned various rubbers, waste tire powder, waste urethane powder and the like.
- the plasticizer group plays a role in melting the additives instantly by lowering melting point and viscosity so that the additives are homogeneously mixed with bitumen and in easily coating the mixture onto the aggregates.
- examples of the plasticizer include various straight bitumen, DBP (di-butylphthalate), DOP (di-octylphthalate), DOS (di-octylsebacate), DMP (di-methylphthalate), DOA (di-octyladipate), PPA (polypropyleneadipate), petroleum resin, pine tar, low molecular weight PE (Polyethylene), low molecular weight PP (Polypropylene), rosin, rosin salt, heavy oil, paraffin wax, microcrystalline wax, hydrocarbon-based oil, aromatic oil, starch, vegetable oils (soybean oil, corn oil, sesame oil, perilla oil, cotton seed oil, etc.), animal oils (tallow, lard, dog oil, various fish oils
- the chemical reaction agent is used for the purpose of reducing the chemical reaction time by rapidly opening the double bonds of elastomer.
- the chemical reaction agent include a reaction initiator, a reaction promoter and a molecular chain cleavage preventing agent, and the combination ratio is 1 : 1-10 : 1-10, respectively.
- the lower limit is a value that does not effect the reaction and a value higher than the higher limit does not improve efficacy of the reaction.
- the reaction initiator is organic peroxides, and examples thereof include DCP (Dicumyl peroxide), DBP (Dibenzoyl peroxide), MEKP (Methyl-ethyl-ketone Peroxide), t-butylperoxy benzoate, di-2-ethylhexylperoxy neodecanoate, t-butylperoxy pivalate, di-isopropylperoxy di- carbonate, bis(2,4-dichlorobenzoyl) peroxide, t-butylperoxy, 2,5-dimethyl-2,5-bis(t-butylperoxy)hexane, acetate l,l-bis(t-butylperoxy)-3,3,5-trimethylcyclohexane, t-butylperoxy neodecanoate, t- butylperoxy-2-ethylhexanoate, di-3,5,5-trimethylhexanony
- the reaction promoter is a mixture of a metal oxide and a metal salt of stearic acid or oleic acid, and the mixture ratio is 1 : 1-5.
- the metal oxide includes calcium oxide (CaO), magnesium oxide (MgO), titanium oxide (TiO ), zinc oxide (ZnO), iron oxide (Fe O ), manganese oxide (MnO) and copper oxide (CuO).
- the metal salt of stearic acid or oleic acid includes at least one selected from a calcium salt, a magnesium salt, a zinc salt, a manganese salt, a copper salt and an iron salt of stearic acid or oleic acid.
- Examples of the molecular chain cleavage preventing agent include sulfur, m- phenylenebismaleimide, high-l,2(high vinyl) polybutadiene, triallyl cyanurate, diallyl phthalate, ethylene diacrylate, divinylbenzene and the like.
- Each component in the filler group is added on the purpose of preventing phase separation between each component, increasing density, promoting homogeneous mixing and reducing the mixing time, and examples thereof include (waste, recycled or virgin) carbon black, toner, bentonite, silica, clay, mica, lime stone powder, nylon filament, polyester filament, glass fiber and cellulose fiber and the like.
- the extrudates were manufactured by means of feeding the composition into a sealed mixing chamber of a compression kneader or banbury, continuously mixing and reacting the mixture under pressure at 90 to 200 0 C for 3 to 90 minutes to form a homogeneous substance, and then passing through a die nozzle of an extruder with L/D (Length/Diameter) of 8 to 12, or by means of reacting the composition by compressing, melting and shear mixing at 90 to 200 0 C using a single or twin screw extruder for compounding use with L/D of 15 to 42 to form a homogeneous substance, and then passing through a die nozzle.
- L/D Length/Diameter
- the extrudate was pulverized into particles in the size of 0.1 to 2 mm using a high-speed rotation blade, the particles are frozen, dried and stored, and the stored particles are packed in a PE (poluethylene) bag in predetermined amounts or further pulverizing into fine powders in the size of 0.01 to 0.5 mm using various pulverizing equipments, and then the powders are packed in a PE bag.
- PE polyethylene
- a rubber composition or polymer compounding machine was introduced for the first time.
- These compounding machines are divided into: a case of having double processes of forming a homogeneous substance in a shear mixer under high temperature and pressure such as a banbury mixer and a compression kneader and forming the homogeneous substance into particles in an extruder with L/D of 8 to 12; and a case of having a single process of compression melting, shear mixing and forming particles in a single or twin screw extruder.
- the case of having double processes is recommended, because the reaction time may be adjusted and more even substance can be formed by giving more powerful shear, rather than the case of a single process since mixing and reacting time is impossible to be adjusted.
- Homogeneous bitumen modified asphalt concrete is manufactured by feeding the composition of bitumen modifier into a batch tower and mixing the same with aggregates and asphalt fillers in a pug-mill mixer.
- bitumen modified asphalt concrete can be manufactured by transferring the composition of bitumen modifier to an asphalt concrete plant, adding 5 to 30 parts by weight of the composition of bitumen modifier to 100 parts by weight of asphalt in a tank of the plant and mixing the same with modified asphalt, aggregates and additives in a pug-mill mixer.
- thermoplastic polymer resin waste foamed (EVA+SBR) resin
- EVA+SBR thermoplastic polymer resin
- elastomer waste tire powder (30 to 40 micron)
- the Marshall's sample After hardening the Marshall's sample at room temperature for about one day, the sample was immersed in a constant temperature water bath at 6O 0 C for 30 minutes, and then the Marshall's stability test was carried out at a speed of 50.8 mm/min and the stability and fluidity value was measured.
- the process for manufacturing the modifier using the composition is carried out in the same manner as in Example 1. 20 wt% of the manufactured modifier and 80 wt% of bitumen (AP-5, SK Icheon Oil) were mixed homog eneously to prepare modified bitumen, and the standard penetration test on the binder was carried out. Further, in the same manner as in Example 1, the Marshall's sample was prepared, and the Marshall's stability and fluidity value was measured, respectively.
- bitumen AP-5, SK Icheon Oil
- EVA+SBR
- the process for manufacturing the modifier using the composition is carried out in the same manner as in Example 1. 20 wt% of the manufactured modifier and 80 wt% of bitumen (AP-5, SK Icheon Oil) were mixed homogeneously to prepare modified bitumen, and the standard penetration test on the binder was carried out. Further, in the same manner as in Example 1, the Marshall's sample was prepared, and the Marshall's stability and fluidity value was measured, respectively.
- bitumen AP-5, SK Icheon Oil
- thermoplastic polymer resin waste foamed (EVA+SBR) resin
- EVA+SBR waste foamed
- SBR elastomer
- the process for manufacturing the modifier using the composition is carried out in the same manner as in Example 1. 20 wt% of the manufactured modifier and 80 wt% of bitumen (AP-5, SK Icheon Oil) were mixed homogeneously to prepare modified bitumen, poured to a penetration test can and the
- modified asphalt concrete can be manufactured for construction of modified bitumen pavement depending on the content of modifier added to modifier components and bitumen. That is, an asphalt concrete, which can be applied to surface layer, middle layer and base layer of all pavements including a general modified bitumen pavement, a drainable modified bitumen pavement, a fatigue failure resistance modified bitumen pavement, a modified bitumen pavement for cold regions, a bridge deck modified bitumen pavement and the like, can be manufactured.
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- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
L'invention porte sur des compositions de modificateurs d'asphalte artificiel destinées à résoudre simultanément les problèmes de déformation plastique à haute température et les diverses craquelures à basse température qui sont générées sur des revêtements de sol en asphalte artificiel dans une région où les étés sont chauds et les hivers froids. L'invention porte également sur des procédés de fabrication de ces compositions. La composition du modificateur de l'invention comprend 1 à 300 parties en poids d'au moins un composant issu d'un groupe de résines polymères alvéolées (résiduaire ou recyclé) et d'un groupe polymère thermoplastique (résiduaire, recyclé ou vierge); 1 à 300 parties en poids d'au moins un groupe provenant d'un groupe élastomère (résiduaire, recyclé ou vierge) à double liaison et 1 à 300 parties en poids d'au moins un groupe provenant d'un groupe d'agents plastifiants (résiduaire, recyclé ou vierge); et également, si besoin, 1 à 1500 parties en poids d'une charge de remplissage ou 1 à 100 parties en poids d'un agent de réaction chimique. Le procédé de fabrication du modificateur est caractérisé en ce que la composition est amenée dans une machine de préparation de mélanges (un malaxeur Banbury, un malaxeur à compression, une extrudeuse à vus unique ou double vis) pour réaliser un mélange à cisaillement vigoureux, à haute température et haute pression, de façon à obtenir un matériau homogène, le faire passer ensuite dans une filière d'extrudeuse pour former des particules et conditionner les particules dans divers sacs, tels que des sacs en polyéthylène.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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KR20050028309 | 2005-04-06 | ||
KR10-2005-0028309 | 2005-04-06 | ||
KR10-2005-0121493 | 2005-12-12 | ||
KR1020050121493A KR100700078B1 (ko) | 2005-04-06 | 2005-12-12 | 복합기능을 가진 비투멘 개질제 조성물과 제조방법 |
Publications (2)
Publication Number | Publication Date |
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WO2006107179A2 true WO2006107179A2 (fr) | 2006-10-12 |
WO2006107179A3 WO2006107179A3 (fr) | 2007-04-12 |
Family
ID=37073869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2006/001272 WO2006107179A2 (fr) | 2005-04-06 | 2006-04-06 | Compositions et procedes de fabrication de modificateurs de l'asphalte artificiel ayant une fonctionnalite complexe |
Country Status (1)
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WO (1) | WO2006107179A2 (fr) |
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EP2584006A4 (fr) * | 2010-06-18 | 2015-09-30 | Yukio Kusano | Additif pour la régénération de l'asphalte, matériau de pavage à base d'asphalte régénéré le contenant, asphalte modifié, et matériau de pavage asphaltique le contenant |
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WO2008046524A1 (fr) | 2006-10-17 | 2008-04-24 | Taleb Marzouki | Composition bitumineuse et son utilisation |
WO2008049312A1 (fr) * | 2006-10-20 | 2008-05-02 | Shenzhen Oceanpower Industrial Co., Ltd. | Modificateur d'asphalte pour améliorer la résistance des chaussées à la formation d'ornières |
WO2008055401A1 (fr) * | 2006-11-09 | 2008-05-15 | Shenzhen Oceanpower Industrial Co., Ltd. | Modificateur d'asphalte haute viscosité |
WO2009121913A1 (fr) * | 2008-04-02 | 2009-10-08 | Shell Internationale Research Maatschappij B.V. | Procédé de fabrication d'asphalte |
US8557034B2 (en) | 2008-04-02 | 2013-10-15 | Shell Oil Company | Process for manufacturing asphalt |
EA017826B1 (ru) * | 2008-04-02 | 2013-03-29 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Способ получения асфальта |
WO2010077141A1 (fr) * | 2009-01-05 | 2010-07-08 | Rasenberg Wegenbouw B.V. | Composition d'asphalte |
US8298661B2 (en) | 2009-01-30 | 2012-10-30 | W. R. Grace & Co.-Conn | Waterproofing membrane |
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US8298662B2 (en) | 2009-08-28 | 2012-10-30 | W.R. Grace & Co.-Conn. | Waterproofing membrane |
EP2584006A4 (fr) * | 2010-06-18 | 2015-09-30 | Yukio Kusano | Additif pour la régénération de l'asphalte, matériau de pavage à base d'asphalte régénéré le contenant, asphalte modifié, et matériau de pavage asphaltique le contenant |
BE1019382A5 (nl) * | 2010-06-22 | 2012-06-05 | Imperbel N V Sa | Bindmiddelsamenstelling. |
US9505963B2 (en) | 2010-06-22 | 2016-11-29 | S. A. Imperbel N.V. | Membrane based on a binder compound with tall-oil pitch |
CN101921419A (zh) * | 2010-08-18 | 2010-12-22 | 西安国琳实业有限公司 | 一种沥青混合料高模量改性剂组合物及其制备方法 |
CN102093727A (zh) * | 2010-12-13 | 2011-06-15 | 太原市巨远立合科技有限公司 | 一种自粘式压缝带及其制备方法 |
US8658717B2 (en) | 2011-01-28 | 2014-02-25 | Honeywell International Inc. | Asphalt paving materials and methods for making the same |
WO2014087091A1 (fr) * | 2012-12-05 | 2014-06-12 | Eiffage Travaux Publics | Composition bitumineuse sous forme de granulés et son procédé de préparation |
EA030194B1 (ru) * | 2012-12-05 | 2018-07-31 | Эффаж Инфрастрюктюр | Битумная композиция в форме гранул и способ ее получения |
FR2998896A1 (fr) * | 2012-12-05 | 2014-06-06 | Eiffage Travaux Publics | Composition bitumeuse sous forme de granules et son procede de preparation |
US9815983B2 (en) | 2012-12-05 | 2017-11-14 | Eiffage Infrastructures | Bituminous composition in the form of granules and method for preparing same |
EP3147310A1 (fr) * | 2012-12-05 | 2017-03-29 | Eiffage Travaux Publics | Composition bitumineuse sous forme de granules et son procede de preparation |
US10584247B2 (en) | 2012-12-28 | 2020-03-10 | Honeywell International Inc. | Methods for reducing asphalt pavement thickness |
US10882994B2 (en) * | 2013-02-19 | 2021-01-05 | Jung Do HUH | Highly visco-elastic warm-mix modifier composition and their manufacturing method thereof; and compositions of virgin and recycled modified warm-mix asphalt concrete mixtures and their manufacturing method thereof |
US20140275357A1 (en) * | 2013-03-15 | 2014-09-18 | Close The Loop Technologies Pty Ltd. | Asphalt including modified toner based additive |
WO2014138789A1 (fr) * | 2013-03-15 | 2014-09-18 | Close The Loop Technologies Pty Ltd | Asphalte comprenant un additif à base d'encre en poudre modifié |
US9139717B2 (en) | 2013-03-15 | 2015-09-22 | Close The Loop Technologies Pty Ltd. | Ground tire rubber additive and asphalt including same |
US9926436B2 (en) | 2013-03-15 | 2018-03-27 | Close The Loop Technologies Pty Ltd. | Asphalt including modified toner based additive |
AU2014231766B2 (en) * | 2013-03-15 | 2017-11-09 | Close The Loop Technologies Pty Ltd | Asphalt including modified toner based additive |
CN105315904B (zh) * | 2014-06-16 | 2018-06-01 | 太原市巨远立合科技有限公司 | 一种自粘式压缝带及其制备方法和使用方法 |
CN105315904A (zh) * | 2014-06-16 | 2016-02-10 | 太原市巨远立合科技有限公司 | 一种自粘式压缝带及其制备方法和使用方法 |
EP2987821A1 (fr) | 2014-08-20 | 2016-02-24 | VEDAG GmbH | Composition de bitume comprenant un matériau de déchets de caoutchouc partiellement décomposé |
EP2987820A1 (fr) * | 2014-08-20 | 2016-02-24 | VEDAG GmbH | Composition de bitume comprenant un matériau de déchets de caoutchouc partiellement décomposé |
US10604655B2 (en) | 2014-08-29 | 2020-03-31 | Iowa State University Research Foundation, Inc. | Asphalt products and materials and methods of producing them |
US10179479B2 (en) | 2015-05-19 | 2019-01-15 | Bridgestone Americas Tire Operations, Llc | Plant oil-containing rubber compositions, tread thereof and race tires containing the tread |
US11958974B2 (en) | 2016-02-29 | 2024-04-16 | Iowa State University Research Foundation, Inc. | Rejuvenation of vacuum tower bottoms through bio-derived materials |
US10961395B2 (en) | 2016-02-29 | 2021-03-30 | Iowa State University Research Foundation, Inc. | Rejuvenation of vacuum tower bottoms through bio-derived materials |
WO2018018064A1 (fr) * | 2016-07-25 | 2018-02-01 | Road Maintenance Pty Ltd | Composition recyclée |
AU2016208271A1 (en) * | 2016-07-25 | 2018-02-08 | Road Maintenance Pty Ltd | Recycled Composition |
US10570286B2 (en) | 2016-08-30 | 2020-02-25 | Iowa State University Research Foundation, Inc. | Asphalt products and methods of producing them for rejuvenation and softening of asphalt |
US11370918B2 (en) | 2016-08-30 | 2022-06-28 | Iowa State University Research Foundation, Inc. | Asphalt products and methods of producing them for rejuvenation and softening of asphalt |
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