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WO2016111438A1 - Composition de béton bitumineux semi-rigide à froid recyclé et son procédé de préparation - Google Patents

Composition de béton bitumineux semi-rigide à froid recyclé et son procédé de préparation Download PDF

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Publication number
WO2016111438A1
WO2016111438A1 PCT/KR2015/009537 KR2015009537W WO2016111438A1 WO 2016111438 A1 WO2016111438 A1 WO 2016111438A1 KR 2015009537 W KR2015009537 W KR 2015009537W WO 2016111438 A1 WO2016111438 A1 WO 2016111438A1
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Prior art keywords
weight
parts
recycled
asphalt concrete
room temperature
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Ceased
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PCT/KR2015/009537
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English (en)
Korean (ko)
Inventor
최상준
송철호
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CSCo ltd
CS Co Ltd
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CSCo ltd
CS Co Ltd
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Publication of WO2016111438A1 publication Critical patent/WO2016111438A1/fr
Anticipated expiration legal-status Critical
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Classifications

    • 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
    • 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
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements

Definitions

  • the present invention relates to a recycled room temperature semi-rigid asphalt concrete composition and a method for manufacturing the same, and more particularly, to a recycled room temperature semi-rigid asphalt concrete composition and a method for manufacturing the same, including waste asphalt concrete that can be constructed at room temperature.
  • Asphalt pavement is a pavement with a surface layer made by combining aggregate with bitumen material, consisting of surface layer and subgrade.
  • the asphalt pavement has excellent adaptability to ground subsidence, favorable for snow melting and melting in snowy cold areas, favorable for comfort and noise reduction, easy construction and maintenance, and quick opening of traffic. While there are advantages such as no trouble, there are problems such as cracks, photo holes, and plastic deformation.
  • concrete pavement has some advantages in terms of adaptability to heavy vehicles, durability and economy, while disadvantageous to ride comfort and comfort, cracks, breakage due to freeze-thawing, breakage due to alkali aggregate reaction, etc. .
  • the room temperature semi-rigid pavement consisting of cement, emulsified asphalt, and aggregate, which can simplify the construction process and solve the pollution problem, has been developed as a strong material.
  • the semi-rigid pavement refers to a pavement in which both the ductility of asphalt and the stiffness of cement coexist. The stiffness is superior to the asphalt pavement, but the ductility is inferior, and the ductility is improved but the stiffness is slightly lower than the cement pavement.
  • Korean Patent No. 10-0599492 discloses a semi-rigid packaging composition and paving method using waste ascon
  • Korean Patent No. 10-0767989 discloses a room temperature semi-rigid road paving method and a road paving material. have.
  • construction waste materials are generated from building reconstruction, urban redevelopment, road renovation, road excavation and recovery, etc.
  • cement concrete waste concrete
  • asphalt concrete waste asphalt concrete
  • earth and sand waste soil
  • wood It is classified into steel, and the amount of generation is greatly increased every year.
  • Korean Patent Publication No. 10-0341021 Korean Patent Publication No. 10-2008-0009335 discloses a method for producing asphalt concrete composition using waste glass as an aggregate, and discloses a room temperature asphalt concrete (room temperature ascon) using waste asphalt concrete.
  • Korean Patent Publication No. 10-0946588 discloses a room temperature regenerated asphalt concrete composition and its construction method.
  • the construction can be carried out at room temperature, eliminating the heating process, while solving the problems such as the generation of harmful gases due to the heating, recycled room temperature semi-rigid asphalt concrete composition using environmentally friendly and durable pavement using waste asphalt concrete And it is a situation that requires the continuous development of the technology for the manufacturing method.
  • An object of the present invention can solve problems such as increase in construction cost due to heating and progress of oxidation aging of asphalt in the heating process when using the recycled asphalt concrete through conventional heating, and in particular, generation of harmful gases and carbon dioxide due to heating, etc. There is no problem, and it is to provide a recycled room temperature semi-rigid asphalt concrete composition and a method for manufacturing the same that can be environmentally friendly construction, including recycled aggregate.
  • an organic binder comprising asphalt, latex and regeneration additive;
  • inorganic binders including cements, polymer admixtures and fibers;
  • recycled aggregates comprising recycled asphalt asphalt concrete aggregates, heavy aggregates, or mixtures thereof;
  • the regeneration additive includes straight asphalt 35 to 65 parts by weight, hydrocarbon compound 20 to 40 parts by weight, amine compound 10 to 30 parts by weight, naphthenic hydrocarbon 4 to 12 parts by weight, and surfactant 1 to 5 parts by weight.
  • Recycled room temperature semi-rigid asphalt concrete composition according to the present invention can solve problems such as increase in construction cost due to heating and oxidation aging of asphalt during the heating process, in particular, problems such as generation of harmful gases and carbon dioxide due to heating
  • problems such as generation of harmful gases and carbon dioxide due to heating
  • There is no, environmentally friendly construction is possible, including recycled aggregates. It also maintains elasticity at high temperatures to prevent plastic deformation, maintains flexibility at low temperatures to prevent cracking, improves interlocking action with aggregates, reduces delamination, and minimizes deformation and cracking. Since it can be extended, it can be usefully used as a road pavement material.
  • the term "recycled semi-rigid asphalt concrete composition” refers to a semi-rigid mixture allowing construction at room temperature without additional heating using waste asphalt concrete.
  • the term "stiffness” refers to the development of a conventional mixture of cement paste filled with voids in an asphalt mixture pavement having a large porosity. It is similar and can be constructed in one piece like ordinary asphalt concrete by mixing at room temperature, which means that the ductility of asphalt and the stiffness of cement coexist together.
  • the recycled room temperature semi-rigid asphalt concrete composition of the present invention comprises (i) an organic binder comprising asphalt, latex and regeneration additives, (ii) an inorganic binder comprising cement, polymer admixtures and fibers, and (iii) recycled waste asphalt concrete aggregate. Cyclic aggregates, including heavy aggregates, or mixtures thereof.
  • the recycled room temperature semi-rigid asphalt concrete composition includes a fiber together with a high weatherability organic binder and an inorganic binder, cracking is suppressed, and when used as a surface pavement layer, the adhesion to existing pavement is excellent, and the surface wear resistance is excellent. Thus, the durability of the packaging layer can be improved and there is no premature wear phenomenon.
  • the organic binder and the inorganic binder are included, adhesion to both asphalt pavement and cement concrete pavement can be improved.
  • the recycled room temperature semi-rigid asphalt concrete composition 0.1 to 10 parts by weight of the organic binder, 0.1 to 10 parts by weight of the inorganic binder, and 70 to 95 parts by weight of the recycled aggregate based on 100 parts by weight of the recycled room temperature semi-rigid asphalt concrete composition It may include, preferably 2 to 4 parts by weight of the organic binder, 3 to 6 parts by weight of the inorganic binder, 86 to 93 parts by weight of the recycled aggregate.
  • organic binders including asphalt, latex and regeneration additives
  • the organic binder may include asphalt, latex, and regeneration additives.
  • the organic binder may include 70 to 95 parts by weight of asphalt, 0.1 to 10 parts by weight of latex, and 1 to 20 parts by weight of regeneration additive, based on 100 parts by weight of organic binder, preferably 85 to 92 parts by weight of asphalt, latex 3 To 5 parts by weight, and 4 to 10 parts by weight of the regeneration additive.
  • the asphalt may be emulsified asphalt, cutback asphalt, or a mixture thereof.
  • the asphalt is highly volatile during construction, which is inconvenient for workers and passengers due to the smell. It can have the effect of improving the working environment around the site and preventing air pollution.
  • anionic emulsified asphalt MS (A) -2 or cationic emulsified asphalt MS (C) -2 may be used.
  • the latex may be a synthetic rubber latex, for example, styrene butadiene rubber (SBR), styrene butadiene styrene (SBS), SBR latex, styrene isoprene styrene (SIS), styrene ethylene butadiene styrene (SEBS), EPDM powder ( EPDM powder), methyl methacrylate (MMA) resin, or polyurethane (PU), preferably styrene butadiene rubber (SBR), styrene butadiene styrene (SBS), SBR latex, styrene isoprene styrene ( SIS), more preferably styrene butadiene rubber.
  • SBR styrene butadiene rubber
  • SBS styrene butadiene styrene
  • SBR latex styrene isoprene
  • the regeneration additive may include straight asphalt, hydrocarbon compounds, amine compounds, naphthenic hydrocarbons, and surfactants.
  • the regeneration additive may include 35 to 65 parts by weight of straight asphalt, 20 to 40 parts by weight of hydrocarbon compound, 10 to 30 parts by weight of amine compound, 4 to 12 parts by weight of naphthenic hydrocarbon, and 1 to 5 parts by weight of surfactant.
  • 40 to 60 parts by weight of straight asphalt, 25 to 35 parts by weight of hydrocarbon compound, 15 to 25 parts by weight of amine compound, 5 to 10 parts by weight of naphthenic hydrocarbon, and 1 to 3 parts by weight of surfactant may be included.
  • the straight asphalt may be extracted from crude oil without changing the asphalt component as much as possible.
  • the hydrocarbon compound may be, for example, an aromatic hydrocarbon such as toluene or benzene, or an aliphatic hydrocarbon such as pentane, hexane, heptane, cyclohexane.
  • the amine compound is patty amines (fatty amine), aliphatic diamines, aliphatic tree may be an amine, or a polyamine, in particular C 1 ⁇ 20 alkyl amines, C 1 ⁇ 20 alkyl diamine, di-C 1 ⁇ 20 alkyl rental Ria minil It may be preferably octadecylamine, ethylenediamine, diethylenetriamine, H 2 N (CH 2 CH 2 NH) 5 H.
  • the naphthenic hydrocarbon may be naphtha (C5 to C15), cyclopentane, or cyclohexane, preferably naphtha or naphtha.
  • the surfactant may be ether, fatty acid, or alcohol, preferably polyoxyethylene alkyl ether, alkyl monoglyceryl ether, fatty acid sorbitan ester, fatty acid diethanolamine, polyethylene glycol, or polyvinyl alcohol.
  • Such regeneration additives may be, for example, emulsion-based regeneration additives, and commercially available emulsion-based regeneration additives may be used, and examples thereof include asphaltenes (asphaltan, manufactured by romonta), licomont (licomont, clariant), evotherm (manufactured by Mead-Westvaco), and asphamin (manufactured by Romonta).
  • asphaltenes asphaltan, manufactured by romonta
  • licomont licomont, clariant
  • evotherm manufactured by Mead-Westvaco
  • asphamin manufactured by Romonta
  • the regeneration additive has a high dissolving ability to improve the mixing performance with the organic binder, improve the physical properties and bonding strength of the recycled aggregate asphalt aggregate, heavy aggregates, or mixtures thereof, and recycling at low temperatures It is possible to produce semi-rigid asphalt concrete compositions.
  • the organic binder includes emulsified asphalt, cutback asphalt or a mixture thereof, latex, and regeneration additives, curing reactions are initiated by mixing them to form a hard film in a short time.
  • the smell is extremely low, and because it can be applied at room temperature, the workability is good, and the durability is high, and thus the road surface property after the construction may exhibit good characteristics.
  • the organic binder is a modified bitumen material, which is capable of maximizing flow resistance, and is capable of preventing plastic deformation due to binder properties at high and low temperatures, and is hard to harden even at low temperatures. This large binder can improve low temperature crack resistance.
  • the organic binder is excellent in the dispersion state by combining the latex emulsified asphalt and the constituent material, material separation does not occur even at high temperatures, has a strong adhesive strength against temperature changes, has a sufficient tensile strength and elongation after curing, cracks It can act as a deterrent.
  • inorganic binders including cements, polymer admixtures and fibers
  • the inorganic binder may include cement, polymer admixture, and fiber.
  • the cement may be at least one selected from the group consisting of silica cement, fly ash cement, and portland cement.
  • the silica cement may be a low alkali type silica cement having a total alkali content of 0.6 or less according to the KSL 5201 Annex A Portland Cement (Low Alkali Type) quality standard, and when the silica cement or the fly's cement is used, By preventing the alkali aggregate reaction, breakage caused by the alkaline aggregate reaction can be reduced. Soluble SiO 2 of the silica cement is slowly combined with Ca (OH) 2 generated during hydration at room temperature to generate an insoluble calcium silicate hydrate. The strength is enhanced.
  • the polymer admixture may be, for example, a reemulsifying powder resin, and the remulsifying powder resin may be at least one selected from the group consisting of ethylene vinyl acetate, vinyl acetate, vinyl vasate, styrene-acrylic acid ester, and polyacrylic acid ester.
  • the textile agent may be at least one selected from the group consisting of cellulose, minerals, polyesters, and polypropylene.
  • the fiber can exert the effect of preventing cracks and durability of the pavement surface by mixing the fibers, improve the adhesion by increasing the fluidity of the binder, there is an effect of suppressing the cracks by increasing the filling and toughness.
  • the inorganic binder may include 80 to 98 parts by weight of cement, 1 to 10 parts by weight of polymer admixture, and 1 to 10 parts by weight of fiber based on 100 parts by weight of the inorganic binder, and preferably 90 to 95 parts by weight of cement and polymer admixture. It may include 3 to 5 parts by weight, and 2 to 5 parts by weight of the fiber.
  • the inorganic binder is excellent in plastic deformation, strength, chemical resistance, freeze-melting resistance, abrasion resistance, in particular excellent adhesion to the existing cement concrete pavement surface. In addition, it prevents damage due to detachment of circulating aggregates and heavy aggregates, thereby improving the durability of the packaging and exhibiting characteristics such as improvement of anti-slip function. In addition, when silica cement or fly ash cement is used, since the water retention is good, the hydration proceeds over a long period of time, so the long-term strength is significantly increased, and the curing time can be freely adjusted by the noise reduction property and the amount of the admixture.
  • the organic binder and the inorganic binder may act as a composite binder to lower the penetration, thereby increasing the peeling resistance, and the organic binder and the inorganic binder may be 2: 6 to 4: 3 by weight.
  • the organic binder and the inorganic binder may be included in an amount of 0.2 to 20 parts by weight, preferably 5 to 10 parts by weight, and more preferably 7 to 9 parts by weight based on 100 parts by weight of the recycled room temperature semi-rigid asphalt concrete composition. .
  • the total amount of the organic binder and the inorganic binder is 0.2 parts by weight or more based on 100 parts by weight of the recycled room temperature semi-rigid asphalt concrete composition, proper adhesion may be exerted, and durability may be improved. It is possible to prevent the occurrence of cracks.
  • recycled aggregates comprising recycled waste asphalt concrete aggregates, heavy aggregates, or mixtures thereof
  • the recycled aggregate may be recycled waste asphalt concrete aggregate, heavy aggregate, or a mixture of recycled waste asphalt concrete aggregate and heavy aggregate, and preferably may be a mixture of recycled waste asphalt concrete aggregate and heavy aggregate.
  • the recycled waste asphalt concrete aggregate (circle aggregate for asphalt) includes old asphalt as crushed and sieved waste asphalt concrete generated when the asphalt concrete pavement is demolished, mixed with other aggregates, or other foreign matter such as wood chips, metal fragments, etc. There is a need not to mix.
  • the recycled waste asphalt concrete aggregate is in accordance with the quality standards of KS F 2572 (cycling aggregate for asphalt concrete).
  • the recycled aggregate includes waste asphalt concrete aggregate
  • by recycling the waste asphalt concrete can be effective in recycling resources as well as to prevent environmental pollution due to waste.
  • the heavy aggregate is a recycled heavy aggregate, which must be hard, strong, durable, free of deposits, and free of clay, silt, and other harmful substances.
  • a heavy aggregate a hard and good abrasion resistance, and having a shape and a granular shape with a relatively large fracture surface can be preferably used, and a low water absorption rate, chemical stability and good chemical resistance is preferable.
  • the weight aggregate may be, for example, iron ore
  • the recycled aggregate may include a weight aggregate having a maximum particle diameter of 0.15 to 20 mm, more preferably, recycled asphalt asphalt concrete recycled aggregate having a maximum particle diameter of 13 mm or less, and a maximum It may comprise a weight aggregate having a particle diameter of 0.6 to 13 mm.
  • the recycled aggregate When the recycled aggregate is 70 parts by weight or more based on 100 parts by weight of the recycled room temperature semi-rigid asphalt concrete composition, it may exhibit excellent durability due to the ratio of suitable aggregates, and when it is 95 parts by weight or less, deformation may be caused by interlocking of aggregates. It can be suppressed.
  • the recycled room temperature semi-rigid asphalt concrete composition according to the present invention may further include an additive, and the additive may include, for example, a peeling inhibitor or a admixture.
  • the additive may preferably include an anti-peeling agent and a admixture, and the anti-peeling agent and admixture may be included in an amount of 0.1 to 10 parts by weight and 0.1 to 10 parts by weight, respectively, based on 100 parts by weight of the room temperature semi-rigid asphalt concrete composition. It may be included, preferably in an amount of 1 to 2 parts by weight, and 1 to 2 parts by weight, respectively.
  • the additive can be used to increase the peel resistance by lowering the penetration.
  • the total amount of the anti-peeling agent and admixture may be 2.0 to 4.0% by weight, preferably 2.5 to 3.5% by weight based on 100 parts by weight of the recycled room temperature semi-rigid asphalt concrete composition. If the additive is more than 2.0% by weight based on the total weight of the recycled room temperature semi-rigid mixture, it can prevent cracks and photoholes by exhibiting a temperature sensitivity to an appropriate temperature, and when it is 4.0% by weight or less, it can exhibit the strength of the appropriate mixture. Therefore, it is economical by maintaining the unit price to an appropriate level.
  • the anti-peeling agent may be hydrated lime, amine, limestone powder, blast furnace slag fine powder, preferably hydrated lime.
  • the slaked lime refers to slaked lime (calcium hydroxide, Ca (OH) 2 ) made by digesting quicklime with water, and improves peeling resistance to water by interacting with a composite binder.
  • the gap between the asphalt and the aggregate is filled, and the fine powder of the anti-peeling agent is wrapped around the aggregate, thereby increasing resistance to moisture.
  • the admixture is at least one selected from the group consisting of KS F 2560 concrete admixture, water retardant, water retardant, water retardant (fastener), high performance water retardant (high fluidizing agent), high performance water retardant, and AE agent. Can be.
  • water sensitizer examples include silicate, aluminate, alkali-free, or high performance powder admixtures
  • the high performance water sensitizers include lignin, naphthalin, or polycarboxylic acid sensitizers.
  • the water-repellent accelerator When used as the admixture, it is possible to perform a curing time control function, to act as a surface active, to increase the workability and freeze-thawing resistance, and also to generate fine air bubbles to expand the summer moisture It is possible to prevent breakage caused by freezing and thawing.
  • the high performance water reducing agent When used as the admixture, it is possible to improve the workability and increase the durability, and to reduce the bleeding of the packaging surface and prevent the separation of aggregates due to the decrease in quantity, improve the workability and reduce the dry shrinkage.
  • the interior of the package is dense and crack-proof to increase durability.
  • the recycled room temperature semi-rigid asphalt concrete composition comprises the steps of: (1) mixing the organic binder, the circulating aggregate, and the anti-peeling agent to the first mixing; And (2) the inorganic binder and admixture may be prepared by a manufacturing method comprising the step of mixing the secondary mixed with the primary mixed mixture.
  • the primary mixing may be performed for 3 to 200 seconds, preferably 20 to 30 seconds
  • the secondary mixing may be performed for 5 to 300 seconds, preferably 30 to 40 seconds.
  • the raw material is temporarily put into the mixer, the process of mixing does not exhibit the interaction phenomenon between the raw materials there was a problem that can not produce a high-quality product.
  • the recycled room temperature semi-rigid asphalt concrete composition of the present invention prepared as described above is a semi-rigid asphalt concrete composition that can be installed at room temperature, and is simple in construction, thereby reducing construction costs, and recycling resources of waste asphalt concrete and heavy aggregates. Not only is it effective in recycling, it can prevent the environmental pollution caused by waste, and it can be installed at room temperature without additional heating process.
  • the recycled room temperature semi-rigid asphalt concrete composition 1 excellent flow resistance (resistant to plastic deformation), 2 extended pavement life and improved durability, 3 production and construction of asphalt mixture at room temperature, 4 carbon dioxide released into the atmosphere during production and construction process Gas prevention and harmful gas suppression, 5 petroleum-based fuel reduction during asphalt mixture production, 6 harmful emissions and dust at the construction site can be suppressed to ensure the safety of workers.
  • the first binder was mixed for 25 seconds by mixing the organic binder, the circulating aggregate, and the anti-peeling agent in the additive, and then prepared by mixing the mixture in the inorganic binder and the additive for 2 seconds for 35 seconds.
  • Specimens were prepared in the same composition as the mixture of Table 1 as recycled room temperature semi-rigid asphalt concrete composition.
  • Example 1 (% by weight)
  • Example 2 (% by weight)
  • Example 3 (% by weight) Organic binder Oil painting asphalt One 2 1.5 Latex 0.5 One 0.5 Regeneration additive 0.5 One One Inorganic binder Silica cement 2 4 3 Polymer admixture 0.5 One One Textile 0.5 One One Circular aggregate Waste asphalt concrete circulating aggregate 56 52 53 Heavy aggregate 37 34 36 additive Peeling inhibitor One 2 One Admixture One 2 2 Total 100 100 100
  • Regeneration additive 40 parts by weight of straight asphalt with a temperature of 40 to 55 is added to the premix tank, 20 parts by weight of toluene and 8 parts by weight of naphtha (C5 to C15) are added, followed by primary mixing and mixing, and normal temperature (15 to 25). After cooling to), 30 parts by weight of octadecylamine (pattiamine) and 2 parts by weight of polyoxyethylene alkyl ether were mixed with the primary mixture at room temperature (1 to 35) to prepare a regeneration additive.
  • Iron ore (Dongwon Resources Seoksan, Yeoncheon Material)
  • silicate-based sensitizers fasteners, ROADCON-LS, manufactured by Silkroad C & T, Examples 1 and 3
  • High Performance Reducing Admixtures High Fluidizing Agent, Polycarboxylic Acid, Example 2
  • Comparative example 2 recycling room temperature asphalt concrete composition
  • Recycled asphalt room temperature concrete composition meeting the quality criteria of GR F 4026 (recycled asphalt concrete mixture), maximum aggregate size 13mm, Marshall stability (25 °C, N): 3500 or more for surface layer, flow value 20-50 (1 / 100cm) ), Porosity 3-12%, indirect tensile strength (dry) (25 ° C) 0.11 Mpa or more, residual tensile strength ratio of 0.65 or more, 100 parts by weight of recycled aggregated waste asphalt, 10 parts by weight of new aggregate (crushed aggregate), filler cement 6
  • a composition including parts by weight, 7 parts by weight of an acrylic polymer additive, and 3 parts by weight of anionic emulsified asphalt was prepared, and the prepared specimen was referred to as Comparative Example 2.
  • Comparative Example 1 which is a semi-rigid asphalt concrete composition
  • Comparative Example 2 which is a recycled asphalt concrete composition
  • the maximum load and the corresponding deformation were measured using a Marshall tester according to the test method for the resistance to plastic flow of asphalt mixture.
  • a Marshall test specimen with a height of 63.5 ⁇ 1.27mm and a diameter of 101.6mm was loaded at a speed of 50.8mm per minute to measure the load when the specimen was destroyed, and the maximum load to Marshall stability and the maximum load (stability) during stability test.
  • the strain value (expressed in hundredths of centimeters) was recorded as the flow value.
  • the volume of the pore in the volume of the ground asphalt mixture was expressed as a percentage.
  • Asphalt mixtures are susceptible to water, wet indirect tensile strength tests are carried out.
  • the ratio of dry and wet indirect tensile strengths is given by
  • Examples 1 to 3 of the recycled room temperature modified semi-rigid composition according to the present invention showed a significantly superior Marshall stability compared to the case of Comparative Examples 1 and 2, in addition to the flow value, It was confirmed that the porosity was small and the indirect tensile strength and the residual tensile strength were large.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Road Paving Structures (AREA)

Abstract

La présente invention concerne une composition de béton bitumineux semi-rigide à froid recyclé contenant : (i) un liant organique comprenant de l'asphalte, du latex et un additif recyclé ; (ii) un liant inorganique comprenant du ciment, un mélange polymère et une fibre composite ; et (iii) un agrégat recyclé comprenant un agrégat d'asphalte et de béton recyclé, un agrégat lourd ou un mélange de ceux-ci et elle concerne également sont procédé de préparation.
PCT/KR2015/009537 2015-01-05 2015-09-10 Composition de béton bitumineux semi-rigide à froid recyclé et son procédé de préparation Ceased WO2016111438A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0000538 2015-01-05
KR1020150000538A KR101533622B1 (ko) 2015-01-05 2015-01-05 재활용 상온 반강성 아스팔트 콘크리트 조성물 및 그 제조방법

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Publication Number Publication Date
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CN108129125A (zh) * 2017-04-27 2018-06-08 钟建军 一种无机再生混凝土集料
CN110903059A (zh) * 2019-12-06 2020-03-24 长安大学 一种超粘耐磨复合改性乳化沥青薄层罩面用材料及其制备方法
CN112299769A (zh) * 2020-11-16 2021-02-02 同济大学 超高分子量纤维-乳化沥青改性的高韧性地质聚合物注浆材料及制备方法和应用
CN113698841A (zh) * 2021-07-20 2021-11-26 东南大学 一种钢桥面铺装专用二阶热拌环氧粘层油及其制备方法和应用
CN115028396A (zh) * 2022-06-16 2022-09-09 江苏中新苏通市政工程有限公司 环保型常温沥青混凝土
CN115490490A (zh) * 2022-09-27 2022-12-20 溧阳市交通工程建设事业发展中心 一种环保型沥青混凝土配方及其制作方法
CN117735932A (zh) * 2023-12-20 2024-03-22 太原市路邦科技有限公司 一种碾压固化型耐水泡沫沥青混凝土及其制备方法
WO2024092393A1 (fr) * 2022-10-31 2024-05-10 汤博宇 Matériau de revêtement de sol en asphalte mixte déposé et mélangé à froid et son procédé de fabrication

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KR101645321B1 (ko) * 2016-01-19 2016-08-03 박종훈 상온 재생 아스팔트 조성물 및 이를 이용한 아스팔트 콘크리트 시공방법
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KR102420637B1 (ko) * 2021-06-23 2022-07-14 김남호 시인성 및 미끄럼 방지성이 우수한 투수성 아스팔트 컬러 포장재, 이의 제조방법 및 이를 이용한 아스팔트 포장시공방법
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Publication number Priority date Publication date Assignee Title
CN108129125A (zh) * 2017-04-27 2018-06-08 钟建军 一种无机再生混凝土集料
CN110903059A (zh) * 2019-12-06 2020-03-24 长安大学 一种超粘耐磨复合改性乳化沥青薄层罩面用材料及其制备方法
CN112299769A (zh) * 2020-11-16 2021-02-02 同济大学 超高分子量纤维-乳化沥青改性的高韧性地质聚合物注浆材料及制备方法和应用
CN112299769B (zh) * 2020-11-16 2021-12-31 同济大学 超高分子量纤维-乳化沥青改性的高韧性地质聚合物注浆材料及制备方法和应用
CN113698841A (zh) * 2021-07-20 2021-11-26 东南大学 一种钢桥面铺装专用二阶热拌环氧粘层油及其制备方法和应用
CN115028396A (zh) * 2022-06-16 2022-09-09 江苏中新苏通市政工程有限公司 环保型常温沥青混凝土
CN115490490A (zh) * 2022-09-27 2022-12-20 溧阳市交通工程建设事业发展中心 一种环保型沥青混凝土配方及其制作方法
WO2024092393A1 (fr) * 2022-10-31 2024-05-10 汤博宇 Matériau de revêtement de sol en asphalte mixte déposé et mélangé à froid et son procédé de fabrication
CN117735932A (zh) * 2023-12-20 2024-03-22 太原市路邦科技有限公司 一种碾压固化型耐水泡沫沥青混凝土及其制备方法

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