WO2012103206A2 - Asphalt paving materials and methods for making the same - Google Patents
Asphalt paving materials and methods for making the same Download PDFInfo
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- WO2012103206A2 WO2012103206A2 PCT/US2012/022535 US2012022535W WO2012103206A2 WO 2012103206 A2 WO2012103206 A2 WO 2012103206A2 US 2012022535 W US2012022535 W US 2012022535W WO 2012103206 A2 WO2012103206 A2 WO 2012103206A2
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- asphalt
- paving material
- aggregate
- oxidized
- binder
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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
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- 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
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
- C08L2555/50—Inorganic non-macromolecular ingredients
- C08L2555/52—Aggregate, e.g. crushed stone, sand, gravel or cement
-
- 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
-
- 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
- C08L2555/84—Polymers comprising styrene, e.g., polystyrene, styrene-diene copolymers or styrene-butadiene-styrene copolymers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Definitions
- the present invention relates generally to asphalt paving materials and methods for making asphalt paving materials, and more particularly relates to asphalt paving materials that exhibit resistance to "rutting" and have improved adhesion between an asphalt binder and aggregate, and methods for making such asphalt paving materials.
- Asphalt mixes are commonly used as paving materials for road construction and maintenance.
- asphalt often referred to as “asphalt binder” or “asphalt cement”
- asphalt is mixed with aggregate to form material used in asphalt paving. Processing and use of this material by paving crews yields asphalt pavement.
- the asphalt pavement comprises aggregate held within a continuous phase of the asphalt binder by adherence of the asphalt binder to the aggregate.
- the strength and durability of the asphalt pavement depends on various factors such as the properties of the materials used, the interaction of the various materials, the mix design, construction practices and the environment and traffic conditions that the pavement is exposed to. To produce a mix that will have good performance during the lifetime of the pavement, it is important to attain proper coating of the aggregate with the asphalt with the optimum asphalt binder film thickness, good adhesion of the asphalt onto the aggregate, and good cohesive strength of the asphalt.
- polymers or other materials having a relatively higher modulus than the asphalt, or that can produce a higher modulus asphalt binder at warmer temperatures than the asphalt are often incorporated into conventional asphalt binders.
- Typical polymers used to modify asphalt binders to reduce or prevent rutting include elastomers, such as, for example, styrene/butadiene/styrene copolymer (SBS), and plastomers, such as, for example, polyethylene, ethyl/vinyl acetate copolymer (EVA), and the like.
- Moisture damage is also a significant problem for conventional asphalt pavement. Because water has a higher affinity for the aggregate surface than does the asphalt binder and because there is effectively no or little chemical bonding between the asphalt binder and the aggregate surface, water can at times displace the asphalt binder from the aggregate surface causing moisture damage. This is known as "stripping.” To reduce or prevent stripping, anti-stripping additives are often incorporated into conventional asphalt binders. Common anti-stripping additives include amines that typically contain long, non-polar fatty chains that exhibit a high affinity for the asphalt binder. The molecular structures of these amines tend to increase the strength of the adhesive bond between the binder and the aggregate.
- an asphalt paving material comprises an asphalt binder present in an amount of from about 3 to about 8 wt. % of the asphalt paving material.
- the asphalt binder comprises base asphalt and an oxidized polyolefin that is present in an amount of from about 0.25 to about 10 wt. % of the base asphalt.
- Aggregate is present in an amount of from about 92 to about 97 wt. % of the asphalt paving material.
- the oxidized polyolefin effectively adheres the asphalt binder to the aggregate so as to resist stripping of the asphalt binder from the aggregate caused by moisture.
- a method for preparing an asphalt paving material comprises the step of mixing asphalt binder and aggregate at conditions effective to form the asphalt paving material.
- the asphalt binder is present in an amount of from about 3 to about 8 wt. % of the asphalt paving material and the aggregate is present in an amount of from about 92 to about 97 wt. % of the asphalt paving material.
- the asphalt binder comprises base asphalt and an oxidized polyolefin that is present in an amount of from about 0.25 to about 10 wt. % of the base asphalt. The oxidized polyolefin effectively adheres the asphalt binder to the aggregate so as to resist stripping of the asphalt binder from the aggregate caused by moisture.
- Figure 1 is a graphical comparison of the tensile strength ratios of various asphalt paving materials in accordance with an exemplary embodiment
- Figure 2 includes photos of samples of aggregate that were coated with various asphalt binders and then subjected to a boiling water test in accordance with an exemplary embodiment; and [0014] Figure 3 is a graphical comparison of the high temperature true grade of various asphalt paving materials in accordance with an exemplary embodiment.
- the asphalt paving material comprises an asphalt binder and aggregate.
- the asphalt binder comprises base asphalt (e.g. neat or unmodified asphalt) and an oxidized polyolefin.
- the inventors have found that oxidized polyolefins are suitable plastomers for modifying the asphalt binder to reduce or prevent permanent deformation of the asphalt pavement at warmer temperatures.
- oxidized polyolefins act as adhesion promoters between the asphalt binder and the aggregate so as to improve the resistance of the asphalt pavement to moisture damaged caused by stripping.
- the asphalt paving material includes an oxidized polyolefin that is effective for reducing or preventing both stripping and rutting, and preferably provides a simplified material that is less costly to produce.
- the asphalt paving material comprises an asphalt binder present in an amount of from about 3 to about 8 weight percent (wt. %) of the asphalt paving material.
- the asphalt binder comprises base asphalt and an oxidized polyolefin that is present in an amount of from about 0.25 to about 10 wt. %, and preferably of from about 0.5 to about 4 wt. %, and more preferably of from about 1 to about 4 wt. %, of the base asphalt.
- Asphalt is defined by the ASTM as a dark brown to black cementitious material in which the predominant constituents are bitumens that occur in nature or are obtained in petroleum processing. Asphalts characteristically contain saturates, aromatics, resins and asphaltenes.
- Naturally occurring asphalt is inclusive of native rock asphalt, lake asphalt, and the like.
- Synthetically manufactured asphalt is often a byproduct of petroleum refining or post refining operations and includes air-blown asphalt, blended asphalt, cracked or residual asphalt, petroleum asphalt, propane asphalt, straight-run asphalt, thermal asphalt, and the like.
- Modified asphalt includes base asphalt (e.g. neat or unmodified asphalt that can be naturally occurring or synthetically manufactured) modified with elastomers, phosphoric acid, polyphosphoric acid, plastomers, ethylene/vinyl acetate copolymer, and the like, or various combinations of these modifiers.
- elastomers suitable for modifying the base asphalt include natural or synthetic rubbers including ground tire rubber, butyl rubber, styrene/butadiene rubber (SBR),
- styrene/ethylene/butadiene/styrene terpolymers SEBS
- polybutadiene polyisoprene
- EPDM ethylene/propylene/diene
- ethylene/n-butyl acrylate/glycidyl methacrylate terpolymers EPDM
- styrene/conjugated diene block or random copolymers such as, for example, styrene/butadiene including styrene/butadiene/styrene copolymer (SBS), styrene/isoprene, and styrene/isoprene-butadiene block copolymer.
- the block copolymers may be branched or linear and may be a diblock, triblock, tetrablock or multiblock.
- the oxidized polyolefin is an oxidized polyethylene, an oxidized polypropylene, and mixtures thereof, and more preferably is an oxidized polyethylene.
- the oxidized polyolefm is oxidized polyethylene homopolymer.
- the oxidized polyolefin is an oxidized high density polyethylene preferably having a density of from about 0.95 to about 1 g/cc.
- Two such suitable oxidized polyolefms are Honeywell TitanTM 7817 and Honeywell TitanTM 7686 oxidized high- density polyethylene homopolymers, manufactured by Honeywell International Inc., which is headquartered in Morristown, New Jersey.
- the oxidized polyolefm has a molecular weight of from about 1000 to about 30,000 Daltons, and more preferably of from about 1000 to about 10,000 Daltons.
- the degree of oxidation, e.g., carboxyl group content, of the oxidized polyolefm may be characterized by titrating a solution of the oxidized polymer with a 0.1 N alcoholic potassium hydroxide (KOH) solution to a visual "pink" end point using phenolphthalein as an indicator to determine the total acid content or acid number of the oxidized polyolefin.
- the oxidized polyolefin has an acid number of from about 5 to about 50 (e.g. acid value of about 5 to about 50 mg KOH/g), and more preferably of from about 15 to about 40 (e.g. acid value of about 15 to about 40 mg KOH/g).
- the asphalt paving material also comprises aggregate.
- aggregate is a collective term for mineral materials, such as, for example, sand, gravel, or crushed stone that are combined with the asphalt binder to form the asphalt paving material.
- the aggregate may comprise natural aggregate, manufactured aggregate, or a combination thereof. Natural aggregate is typically extracted rock from an open excavation (e.g. a quarry) that is reduced to usable sizes by mechanical crushing. Manufactured aggregate is typically a byproduct of other manufacturing processes such as slag from metallurgical processing (e.g. steel, tin, and copper production). Manufactured aggregate also includes specialty materials that are produced to have a particular physical characteristic not found in natural rock, such as, for example, low density.
- the asphalt paving material comprises aggregate that is present in an amount of from about 92 to about 97 wt. % of the asphalt paving material.
- the asphalt paving material consists essentially of asphalt binder and aggregate, and the asphalt binder consists essentially of base asphalt and oxidized polyolefin with substantially no typical anti-stripping agent.
- substantially no anti-stripping agent means the anti-stripping agent, if present, is not used in an amount that will meet industry standards resistance to moisture damage. Two such suitable tests for determining the resistance of an asphalt paving material to moisture damage are specified in AASHTO T-283 and ASTM D 4867 standard procedures.
- typical anti-stripping agents include amines such as polyamines and polyalkylenepolyamme, modified amines such as polyamines reacted with fatty acids, lime (CaO) including hydrated lime (Ca(OH) 2 ), phosphoric acid, acrylic polymer including styrene-acrylic polymer, or combinations and/or derivatives thereof.
- the asphalt binder may include an anti -rutting polymer and/or elastomer, such as, for example, SBS present in an amount of from about 0.5 to about 5 wt. % of the base asphalt.
- a method for preparing asphalt paving materials as discussed in the foregoing paragraphs includes heating and drying aggregate at a temperature of from about 120 to about 190°C.
- the aggregate is heated and dried by conventional means, continuous or batch, such as, for example, in a drum-mixer by hot gases.
- Base or modified asphalt is heated separately from the aggregate to a liquidus state at a temperature of from about 120 to about 190° C.
- oxidized polyolefin is added to the hot liquid asphalt to form a hot liquid asphalt binder.
- the hot asphalt binder is then combined with the heated aggregate in the conventional continuous or batch operations where the asphalt binder and the aggregate are mixed at a temperature of from about 120 to about 190°C to form a hot mix asphalt paving material.
- the oxidized polyolefin is initially combined with the heated aggregate in the drum-mixer where the heated aggregate melts the oxidized polyolefin.
- the conventional continuous or batch operation mixes the hot aggregate with the melting oxidized polyolefin such that the oxidized polyolefin coats the surface of the aggregate.
- the hot liquid asphalt is then combined with the oxidized polyolefm-coated aggregate in the drum-mixer and the combined ingredients are mixed at a temperature of from about 120 to about 190°C to form a hot mix asphalt paving material.
- the oxidized polyolefin transfers and/or diffuses from the aggregate into the hot liquid asphalt to form a continuous hot liquid asphalt binder phase.
- FIG. 1 a graphical representation of the results of a moisture damage study of various asphalt paving materials is provided.
- the effects of two different polymers Honeywell TitanTM 7686 oxidized high-density polyethylene homopolymer and Honeywell TitanTM 7205 mid-density polyethylene homopolymer (manufactured by Honeywell International Inc. headquartered in Morristown, New Jersey), on moisture susceptibility of asphalt mixtures were evaluated in this study.
- a fine graded, heavy traffic, asphalt paving mixture designed to meet Wisconsin DOT requirements was used as a base composition for the study.
- the aggregate used to form the asphalt paving mixtures was granite aggregate from a prominent aggregate source in North Central Wisconsin.
- the moisture damage testing was conducted using the procedure specified in the AASHTO T-283 standard procedure.
- moisture susceptibility testing quantifies moisture damage as the ratio of indirect tensile strength of conditioned to unconditioned asphalt paving samples. All testing was conducted at about 25°C using samples compacted to about 7% +/- 1% air void content. For the conditioned samples, the standard procedure requires vacuum saturation to levels of percent saturation ranging from about 55 to about 85% followed by full immersion in a water bath at about 60°C for about 24 hours.
- the first two bars 102 and 104 represent the tensile strength ratios of asphalt paving mixtures including SBS present in an amount of about 4.5 wt. % of the base asphalt without the anti-stripping agent and with the anti-stripping agent,
- the second two bars 106 and 108 represent the tensile strength ratios of asphalt paving mixtures including Honeywell TitanTM 7686 oxidized high-density polyethylene homopolymer present in an amount of about 3.5 wt. % of the base asphalt without the anti-stripping agent and with the anti-stripping agent, respectively.
- the third two bars 110 and 112 represent the tensile strength ratios of asphalt paving mixtures including SBS present in an amount of about 1 wt. % and Honeywell TitanTM 7686 oxidized high-density polyethylene homopolymer present in an amount of about 2.5 wt. % of the base asphalt without the anti-stripping agent and with the anti-stripping agent, respectively.
- the fourth two bars 114 and 116 represent the tensile strength ratios of asphalt paving mixtures including Honeywell TitanTM 7205 mid-density polyethylene homopolymer present in an amount of about 6 wt. % of the base asphalt without the anti- stripping agent and with the anti-stripping agent, respectively.
- the fifth two bars 1 18 and 120 represent the tensile strength ratios of asphalt paving mixtures including SBS present in an amount of about 1 wt. % and Honeywell TitanTM 7205 mid-density polyethylene homopolymer present in an amount of about 3.5 wt. % of the base asphalt without the anti- stripping agent and with the anti-stripping agent, respectively.
- asphalt paving mixtures without anti-stripping additives having AASHTO T-283 tensile strength ratios of at least 0.70 are considered acceptable for road construction and/or maintenance
- asphalt paving mixtures with anti-stripping additives having AASHTO T-283 tensile strength ratios of at least 0.75 are considered acceptable for road construction and/or maintenance.
- the asphalt mixtures comprising SBS and/or Honeywell TitanTM 7205 mid-density polyethylene homopolymer without the anti-stripping agent represented by bars 102, 114 and 118 had tensile strength ratios of about 0.5, 0.68 and 0.52, respectively, and therefore were found to be unacceptable for road construction and/or maintenance.
- the asphalt mixtures comprising Honeywell TitanTM 7686 oxidized high-density polyethylene homopolymer either with or without SBS and without the anti-stripping agent represented by bars 106 and 1 10 had tensile strength ratios of about 0.99 and 1.01, respectively, and therefore were found to be acceptable for road construction and/or maintenance.
- the asphalt paving material includes an asphalt binder and aggregate where the asphalt binder includes base asphalt and oxidized polyolefm with substantially no typical anti-stripping agent.
- the asphalt paving material has an AASHTO T-283 tensile strength ratio of at least about 0.65, and preferably of at least about 0.75, and more preferably of at least about 0.85, and most preferably of at least about 0.95.
- the sample corresponding to photo 130 was formed with aggregate coated with an asphalt binder comprising base asphalt and Honeywell TitanTM 7205 that was present in an amount of about 3 wt. % of the base asphalt.
- the sample corresponding to photo 132 was formed with aggregate coated with an asphalt binder comprising base asphalt and SBS that was present in an amount of about 3 wt. % of the base asphalt.
- the sample corresponding to photo 134 was formed with aggregate coated with an asphalt binder comprising base asphalt and Honeywell TitanTM 7686 that was present in an amount of about 3 wt. % of the base asphalt.
- the sample corresponding to photo 136 was formed with aggregate coated with an asphalt binder comprising base asphalt and SBS and Honeywell TitanTM 7686 that were present in amounts of about 2.25 and 0.75 wt. % of the base asphalt, respectively.
- the paving grade of asphalt cement is described in terms of the performance grade (PG) that is defined by two numbers which represent pavement temperatures. These numbers are determined using the AASHTO M320 standard procedure.
- the first number PG 64-XX represents the high pavement temperature (or "high temperature true grade") in degrees Celsius and the second number PG XX-22 represents the low pavement temperature.
- the high pavement temperature relates to the effects of rutting and the low pavement temperature relates to cold temperature cracking.
- the higher the high pavement temperature is of a performance grade (indicated by the first number), the more resistant the asphalt cement is to rutting.
- asphalt cement that has a performance grade of PG 76-22 is more resistant to rutting than asphalt cement that has a performance grade of PG 64-22 (e.g. high temperature true grade of 64).
- the asphalt paving material samples illustrated in Figure 3 were prepared using an asphalt pavement formulation having a performance grade of PG 64-22 that was also modified with the addition of the following to improve resistance to rutting: SBS present in an amount of about 4.5 wt. % of the base asphalt for samples corresponding to the first two bars 140 and 142; SBS and Honeywell TitanTM 7686 present in amounts of about 1 and 2.5 wt. %, respectively, of the base asphalt for the samples corresponding to the second two bars 144 and 146; Honeywell TitanTM 7686 present in an amount of about 3.5 wt.
- the samples corresponding to the bars 140, 144, 148 and 152 were non-aged asphalt paving material samples, and the samples corresponding to bars 142, 146, 150 and 154 were short-term heat aged samples at about 163°C for about 85 minutes.
- the samples exhibited high temperature true grade values of greater than 76 indicating that the asphalt paving materials would have relatively good resistance to rutting and have corresponding performance grades of at least PG 76- 22.
- Honeywell TitanTM 7686 oxidized polyethylene is effective as an anti-rutting polymer.
- the asphalt paving material comprises an asphalt binder and aggregate.
- the asphalt binder comprises base asphalt and an oxidized polyolefin.
- the oxidized polyolefms are suitable plastomers for modifying the asphalt binder to reduce or prevent permanent deformation of the asphalt pavement at warmer temperatures caused by the weight, duration, and number of vehicles.
- the oxidized polyolefms have been found to act as adhesion promoters between the asphalt binder and the aggregate so as to improve the resistance of the asphalt pavement to moisture damaged caused by stripping.
- the asphalt paving material includes an oxidized polyolefin that is effective for reducing or preventing both stripping and rutting, and preferably provides a simplified material that is less costly to produce.
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Abstract
Description
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Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2013008670A MX357438B (en) | 2011-01-28 | 2012-01-25 | Asphalt paving materials and methods for making the same. |
CN201280006653.XA CN103328406B (en) | 2011-01-28 | 2012-01-25 | Asphalt pavement material and manufacture the method for this material |
EP12739942.6A EP2668143B1 (en) | 2011-01-28 | 2012-01-25 | Asphalt paving materials and methods for making the same |
RU2013135447A RU2612387C2 (en) | 2011-01-28 | 2012-01-25 | Materials for asphalt pavement and methods of its preparation |
ES12739942T ES2748035T3 (en) | 2011-01-28 | 2012-01-25 | Asphalt paving materials and their manufacturing procedures |
CA2825315A CA2825315C (en) | 2011-01-28 | 2012-01-25 | Asphalt paving materials and methods for making the same |
JP2013551307A JP5964324B2 (en) | 2011-01-28 | 2012-01-25 | Asphalt pavement material and manufacturing method thereof |
KR1020137022696A KR101855901B1 (en) | 2011-01-28 | 2012-01-25 | Asphalt paving materials and methods for making the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US201161437265P | 2011-01-28 | 2011-01-28 | |
US61/437,265 | 2011-01-28 | ||
US13/350,393 | 2012-01-13 | ||
US13/350,393 US8658717B2 (en) | 2011-01-28 | 2012-01-13 | Asphalt paving materials and methods for making the same |
Publications (2)
Publication Number | Publication Date |
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WO2012103206A2 true WO2012103206A2 (en) | 2012-08-02 |
WO2012103206A3 WO2012103206A3 (en) | 2012-11-22 |
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PCT/US2012/022535 WO2012103206A2 (en) | 2011-01-28 | 2012-01-25 | Asphalt paving materials and methods for making the same |
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US (1) | US8658717B2 (en) |
EP (1) | EP2668143B1 (en) |
JP (1) | JP5964324B2 (en) |
KR (1) | KR101855901B1 (en) |
CN (1) | CN103328406B (en) |
CA (1) | CA2825315C (en) |
ES (1) | ES2748035T3 (en) |
MX (1) | MX357438B (en) |
RU (1) | RU2612387C2 (en) |
WO (1) | WO2012103206A2 (en) |
Cited By (4)
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WO2014105410A1 (en) | 2012-12-28 | 2014-07-03 | Honeywell International Inc. | Methods for reducing asphalt pavement thickness, increasing aggregate-to-aggregate contact of asphalt paving materials, and improving low temperature cracking performance of asphalt paving materials |
US20150225296A1 (en) * | 2014-02-07 | 2015-08-13 | Honeywell International Inc. | Plastomer-modified asphalt binders meeting mscr specifications, asphalt paving materials with such asphalt binders, and methods for fabricating such asphalt binders |
KR20160106070A (en) * | 2014-01-07 | 2016-09-09 | 허니웰 인터내셔날 인코포레이티드 | Asphalt binder compositions and methods to make and use same |
US10155866B2 (en) | 2014-04-10 | 2018-12-18 | Regents Of The University Of Minnesota | Compositions including asphalt component and graphite component |
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US8658717B2 (en) | 2011-01-28 | 2014-02-25 | Honeywell International Inc. | Asphalt paving materials and methods for making the same |
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Also Published As
Publication number | Publication date |
---|---|
CN103328406A (en) | 2013-09-25 |
KR20140020261A (en) | 2014-02-18 |
CA2825315A1 (en) | 2012-08-02 |
WO2012103206A3 (en) | 2012-11-22 |
EP2668143B1 (en) | 2019-08-21 |
RU2013135447A (en) | 2015-03-10 |
CN103328406B (en) | 2016-04-27 |
EP2668143A2 (en) | 2013-12-04 |
MX2013008670A (en) | 2013-10-01 |
US8658717B2 (en) | 2014-02-25 |
EP2668143A4 (en) | 2015-09-09 |
RU2612387C2 (en) | 2017-03-09 |
ES2748035T3 (en) | 2020-03-12 |
MX357438B (en) | 2018-07-09 |
JP2014506637A (en) | 2014-03-17 |
JP5964324B2 (en) | 2016-08-03 |
CA2825315C (en) | 2019-04-02 |
KR101855901B1 (en) | 2018-05-09 |
US20120196959A1 (en) | 2012-08-02 |
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