WO2013060110A1 - Mélange d'asphalte résistant à l'orniérage mélangé à chaud et son procédé de préparation - Google Patents

Mélange d'asphalte résistant à l'orniérage mélangé à chaud et son procédé de préparation Download PDF

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Publication number
WO2013060110A1
WO2013060110A1 PCT/CN2012/071903 CN2012071903W WO2013060110A1 WO 2013060110 A1 WO2013060110 A1 WO 2013060110A1 CN 2012071903 W CN2012071903 W CN 2012071903W WO 2013060110 A1 WO2013060110 A1 WO 2013060110A1
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Prior art keywords
asphalt
rutting
warm
mixture
asphalt mixture
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PCT/CN2012/071903
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English (en)
Chinese (zh)
Inventor
宋科
赵欣平
何唯平
Original Assignee
深圳海川工程科技有限公司
河源海川科技有限公司
深圳海川新材料科技有限公司
深圳市海川实业股份有限公司
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Publication of WO2013060110A1 publication Critical patent/WO2013060110A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/201—Pre-melted polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
    • 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
    • C08L2555/24—Asphalt produced between 100°C and 140°C, e.g. warm mix asphalt
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • 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 invention relates to an asphalt mixture which is warm mixed with anti-rutting and a preparation method thereof. Background technique
  • asphalt mixture can be improved in three ways:
  • the first is grading improvement.
  • the grading improvement is a double-edged sword, and the rutting resistance and water damage are not well compatible.
  • the second is asphalt modification.
  • the effect of asphalt modification is better, but there is the compatibility problem between asphalt and modifier.
  • high dose modifier is needed, and high dose modifier is difficult to disperse in asphalt. Both are hooked, and the stratification of the modifier and the asphalt occurs during transportation and storage, and its performance is not as good as that of the matrix asphalt.
  • the third is fiber reinforcement.
  • the fiber reinforced effect is better.
  • higher rutting resistance is required, a high amount of fiber is required, and the high-volume fiber is difficult to disperse uniformly in the asphalt mixture, and the unevenly dispersed fiber asphalt mixture not only starts from Not to enhance the effect, but to reduce the structural bulk strength.
  • the object of the present invention is to provide an asphalt mixture which is warm and anti-rutting and a preparation method thereof, so as to solve the technical problem that the existing asphalt mixture has poor rutting resistance and high mixing temperature.
  • the present invention provides a warm mix anti-rutting asphalt mixture
  • the asphalt mixture comprises a warm mix asphalt additive and an anti-rutting asphalt modifier
  • the warm mix asphalt additive accounts for the weight of the asphalt mixture. 2.5%. ⁇ 5%.
  • the anti-rutting asphalt modifier accounts for 1% by weight of the asphalt mixture. ⁇ 6 %o.
  • the warm asphalt additive is prepared by using quartz sand, sodium hydroxide, sodium aluminate, water and calcium hydroxide, and the weight ratio of the quartz potassium hydroxide, sodium aluminate, water and calcium hydroxide is in turn It is 0.65 ⁇ 0.85: 0.95 ⁇ 1.5: 1: 9.5 ⁇ 22: 0.24 ⁇ 0.75.
  • the preparation method of the warm mix asphalt additive comprises the following steps:
  • Second hydrothermal treatment The solution obtained in the step (1) is uniformly mixed with sodium aluminate, sodium hydroxide and water to obtain a molar ratio of Si0 2 , A1 2 0 3 , Na 2 0 and 3 ⁇ 40 in the mixture.
  • the ratio is 1.8-2.2: 1: 3 ⁇ 4: 90 -200, the mixture is added to the reaction vessel, heated to 90 ⁇ 100 °C under stirring conditions of 60 ⁇ 80 rpm, crystallization for 3 ⁇ 5 hours ;
  • the product obtained in the step (2) is washed with water to a pH of less than 11, and then dried at 60 to 80 ° C to obtain a dried product;
  • step (3) the product obtained in step (3) is ground to calcium hydroxide by weight ratio 3 ⁇ 9: 1 Mix well, that is, get warm mix asphalt additive.
  • the anti-rutting asphalt modifier is made of the following components and parts by weight: 10-20 parts of polyolefin, 1 ⁇ 80 parts of rubber powder, 0.5-1 parts of antioxidant, PE is PE, PP, EVA, APP One or a combination of APAO, POE, HDPE, LDPE and LLDPE, rubber powder fineness of 20 ⁇ 100 mesh.
  • the rubber powder is natural rubber, butylbenzene, butyronitrile, chloroprene, cis-butane, isoprene and/or ethylene propylene diene rubber powder.
  • the rubber powder is a recycled rubber powder of natural rubber, butylbenzene, butyronitrile, chloroprene, cis-butane, isoprene and/or ethylene propylene diene rubber, and the recycled rubber powder is a sulfur-containing or desulfurized rubber powder.
  • the antioxidant is one or a mixture of two phenolic or phosphite antioxidants.
  • the preparation method of the anti-rutting asphalt modifier comprises the following steps:
  • step (2) The mixture obtained in the step (1) is heated to 80 ° C in 8 to 12 minutes, and then heated to 150 ° in 15 to 20 minutes (and finally heated to 200 ° C in 3 to 7 minutes;
  • a finished product of asphalt modifier is obtained by mixing, granulating or slicing a heated melt vessel, an open mill, a single-screw extruder, a twin-screw extruder or a Henschel mixer.
  • the invention also provides a preparation method of the asphalt mixture for warm mixing and anti-rutting, the steps are as follows: (1) in the mixing plant equipment, adding the aggregate when the heating temperature is 160 ⁇ 230 °C;
  • the molding temperature of the asphalt mixture is 130 ⁇ 160 °C.
  • the invention also provides a preparation method of another asphalt mixture which is warm and anti-rutting, and the steps are as follows:
  • the aggregate is added when the heating temperature is 160 ⁇ 230 °C;
  • the molding temperature of the asphalt mixture is 130 ⁇ 160 °C.
  • the asphalt mixture of the invention has the following mechanism of action after adding the anti-rutting asphalt modifier:
  • the anti-rutting asphalt modifier is first mixed with the aggregate when mixing, part Melting on the surface of the aggregate improves the adhesion of the aggregate, which is equivalent to the pre-modification of the aggregate; the second is the modification of the asphalt.
  • the anti-rutting asphalt modifier partially dissolves or swells in the asphalt to form a cementation effect, thereby achieving the effects of improving the softening point temperature, increasing the viscosity, and reducing the heat sensitivity.
  • the third is fiber reinforcement.
  • the microcrystalline region formed by the polyolefin has considerable stiffness, and is partially drawn into plastic fibers during the mixing process, and bridged and crosslinked in the aggregate skeleton to form a fiber reinforced effect;
  • the fourth is the role of fine aggregate skeleton.
  • the anti-rutting asphalt modifier temporarily softens during construction, and then these pellets are thermoformed during the rolling process, which is equivalent to a single-size fine aggregate with high adhesion filling the voids in the aggregate skeleton, increasing the asphalt mixing.
  • the skeleton function of the material structure, while reducing the permeability of the formed pavement;
  • the fifth is the recovery of deformation.
  • the elastic component of the anti-rutting asphalt modifier has a function of elastically recovering the deformed portion of the road surface at a higher temperature, thereby reducing the permanent deformation of the formed asphalt pavement.
  • the addition of warm mix asphalt additive to asphalt mixture has many advantages: (1) Energy saving, when the mixing temperature of the mixture is lowered by 30 ° C, the fuel mixture can save 2.4 Kg per ton of asphalt mixture; (2) reduce emissions, When the mixing temperature of the mixture is lowered by 30 °C, it can reduce more than 30% of CO 2 emissions and more than 40% of dust emissions; (3) protect the health of construction workers; (4) reduce the aging of asphalt during production Increase the service life of asphalt pavement; (5) Reduce the pressure and impact of construction on the road surface; (6) Reduce the construction temperature requirements and extend the construction season. detailed description
  • the present invention provides a warm mix anti-rutting asphalt mixture comprising a warm mix asphalt additive and an anti-rutting asphalt modifier, the warm mix asphalt additive comprising 2.5 % by weight of the asphalt mix. ⁇ 5 %.
  • the anti-rutting asphalt modifier accounts for the weight of the asphalt mixture.
  • the preparation method of the asphalt mixture of the warm mixed anti-rutting of the invention is as follows:
  • the aggregate is added when the heating temperature is 160 ⁇ 230 °C;
  • the molding temperature of the asphalt mixture is 130 ⁇ 160 °C.
  • Another preparation method of the asphalt mixture for warm mixing and anti-rutting of the invention comprises the following steps: (1) adding material in the mixing plant to a heating temperature of 160 to 230 ° C;
  • the molding temperature of the asphalt mixture is 130 ⁇ 160 °C.
  • the warm mix asphalt additive and the anti-rutting asphalt modifier in the asphalt mixture of the invention are all self-made, and the warm mix asphalt additive can be added before or after the asphalt, or can be added simultaneously with the asphalt, and the warm mixing effect can be obviously reduced and reduced.
  • Mixing temperature is above 30 °C.
  • the implementation of the asphalt mixture preparation method is as follows: (The ratio of asphalt to aggregate in the example (referred to as the ratio of oil to stone) 5% of the AC-13 grade)
  • the molding temperature of the asphalt mixture is 150 °C.
  • the molding temperature of the asphalt mixture is 160 °C.
  • the pavement construction process of the asphalt mixture of the present invention is as follows:
  • the warm mix asphalt modifier is a synthetic linear aliphatic hydrocarbon mixture having a melting point of 100 ° C. When the temperature exceeds 115 ° C, it is completely dissolved in the asphalt binder, forming a grid structure in the asphalt binder.
  • the warm mix modifier is well stabilized in the asphalt binder without segregation.
  • the warm mix modifier can significantly reduce the high temperature viscosity of the bitumen and increase the low temperature (60 ° C) viscosity of the bitumen. Therefore, the addition of the warm mix modifier in the bitumen can not only reduce the mixing and compaction temperature of the construction, but also It can increase the high temperature stability of the asphalt mixture.
  • the asphalt mixture of the invention uses a self-made warm mixed asphalt modifier to reduce the mixing temperature above 30 °C and significantly reduce the paving temperature.
  • the addition of warm mix asphalt additive to the asphalt mixture of the invention has many advantages: (1) saving energy, when the mixing temperature of the mixture is lowered by 30 ° C, the fuel mixture can save 2.4 Kg per ton of asphalt mixture; (2) reducing emissions When the mixing temperature of the mixture is lowered by 30 °C, it can reduce more than 30% of CO 2 emissions and more than 40% of dust emissions; (3) protect the health of construction workers; (4) reduce the asphalt in the production process Aging, increase the service life of asphalt pavement; (5) The earlier pavement opening time reduces the pressure and impact brought by construction to the traffic; (6) Reduce the construction environment temperature requirements and extend the construction season.
  • the self-made warm asphalt additive is prepared from quartz sand, sodium hydroxide, sodium aluminate, water and calcium hydroxide, and the weight ratio of the quartz sand, sodium hydroxide, sodium aluminate, water and calcium hydroxide is in turn It is 0.65 ⁇ 0.85: 0.95 ⁇ 1.5: 1: 9.5 ⁇ 22: 0.24 ⁇ 0.75.
  • the preparation method of the homemade warm asphalt additive includes the following steps:
  • the first hydrothermal treatment the weight ratio of quartz sand, sodium hydroxide and water is 1:0.5 ⁇
  • step (3) washing and drying the product obtained in the step (2) is washed with water to a pH of less than 11, and then blasted at 60 to 80 ° C to obtain a dried product; (4) Compounding: The product obtained in the step (3) is ground and then mixed with calcium hydroxide in a weight ratio of 3 to 9:1 to obtain a warm mixed asphalt additive.
  • Quartz sand raw material is from Heyuan City, Guangdong province, with Si0 2 content greater than 99% and particle size less than 100.
  • the mixture was transferred to a 10 L reaction vessel, stirred to 60 rpm, heated to 100 ° C, crystallized for 3 hours, and the heating was stopped.
  • the temperature of the reaction vessel was lowered to room temperature by cooling water, and the mixture was stopped after stirring.
  • the material in the kettle was suction filtered, washed, and then dried in a forced air oven at 60 ° C for 8 hours to obtain a white solid product. After the product was ground, 400 g of calcium hydroxide was added, and the mixture was combined and placed in a sealed bottle. save.
  • Quartz sand raw material is from Heyuan City, Guangdong province, with Si0 2 content greater than 99% and particle size less than 100.
  • Quartz sand raw material is from Heyuan City, Guangdong province, with Si0 2 content greater than 99% and particle size less than 100.
  • the mixture was transferred to a 10 L reaction vessel, stirred to 60 rpm, heated to 100 ° C, crystallized for 3 hours, and the heating was stopped.
  • the temperature of the reaction vessel was lowered to room temperature by cooling water, and the mixture was stopped after stirring.
  • the material in the kettle was suction filtered, washed, and then dried in a forced air oven at 80 ° C for 6 hours to obtain a white solid product. After the product was ground, 300 g of calcium hydroxide was added, and the mixture was combined and placed in a sealed bottle. save.
  • Quartz sand raw material is from Heyuan City, Guangdong province, with Si0 2 content greater than 99% and particle size less than 100.
  • the material in the kettle was suction filtered, washed, and then dried in a forced air oven at 80 ° C for 10 hours to obtain a white solid product. After the product was ground, 200 g of calcium hydroxide was added, and the mixture was homogenized and placed in a sealed bottle. save.
  • Quartz sand raw material is from Heyuan City, Guangdong province, with Si0 2 content greater than 99% and particle size less than 100.
  • the anti-rutting asphalt modifier in the asphalt mixture of the invention is also self-made.
  • the asphalt mixture of the invention has the following action mechanism after adding the anti-rutting asphalt modifier: First, the aggregate thickening effect.
  • the anti-rutting asphalt modifier is first mixed with the aggregate and partially melted on the aggregate surface to improve the adhesion of the aggregate, which is equivalent to the pre-modification of the aggregate; the second is the asphalt modification.
  • the anti-rutting asphalt modifier partially dissolves or swells in the asphalt to form a cementation effect, thereby improving the softening point temperature, increasing the viscosity, reducing the heat sensitivity and the like, and the third is the fiber reinforcement effect.
  • the microcrystalline region formed by the polyolefin has considerable stiffness, and is partially drawn into plastic fibers during the mixing process, and cross-linked in the aggregate skeleton to form a fiber reinforced effect; the fourth is a fine aggregate skeleton.
  • the anti-rutting asphalt modifier temporarily softens during construction, and then these pellets are thermoformed during the rolling process, which is equivalent to a single-size fine aggregate with high adhesion filling the voids in the aggregate skeleton, increasing the asphalt mixing.
  • the skeleton function of the material structure reduces the permeability of the formed pavement at the same time;
  • the elastic component in the anti-rutting asphalt modifier has a function of elastically recovering the deformed portion of the road surface at a higher temperature, thereby reducing the permanent deformation of the formed asphalt pavement.
  • the asphalt modifier of the present invention is blended with 1% in a conventional asphalt mixture. ⁇ 6%. , can significantly improve the high temperature performance of asphalt mixture, that is, rutting resistance, dynamic stability of more than 7000 times, and improve water resistance damage resistance, low temperature cracking and other performance, cost-effective.
  • the dosage is low (1%. ⁇ 3%o)
  • the optimum oil-stone ratio is maintained.
  • the optimum ratio of oil to stone is 0.1 to 0.2%.
  • the self-made anti-rutting asphalt modifier is made up of the following components and parts by weight: 10-20 parts of polyolefin, 1 ⁇ 80 parts of rubber powder, 0.5-1 parts of antioxidant, PE is PE, PP, EVA, APP One or a combination of APAO, POE, HDPE, LDPE and LLDPE, the rubber powder has a fineness of 20 to 100 mesh.
  • the melting point of LDPE is greater than 120 °C.
  • LLDPE has a melt index of 20 g / lOmin and a melting point of 123 °C.
  • POE is 8150 for Dow in the United States.
  • the rubber powder is natural rubber, butylbenzene, butyronitrile, chloroprene, cis-butane, isoprene and/or ethylene propylene diene rubber powder.
  • the rubber powder is a recycled rubber powder of natural rubber, butylbenzene, butyronitrile, chloroprene, cis-butane, isoprene and/or ethylene propylene diene rubber, and the recycled rubber powder is a sulfur-containing or desulfurized rubber powder.
  • the antioxidant is one or a mixture of two phenolic or phosphite antioxidants.
  • the preparation method of the anti-rutting asphalt modifier comprises the following steps:
  • the mixture obtained in the step (1) is heated to 80 ° C in 8 ⁇ 12 minutes, and then heated to 150 ° C in 15 ⁇ 20 minutes, and finally heated to 200 ° C in 3 ⁇ 7 minutes;
  • the finished product of the asphalt modifier is obtained by mixing, forming, granulating or slicing a heated melt vessel, an open mill, a single-screw extruder, a twin-screw extruder or a Henschel mixer.
  • AC- 13 asphalt mixture with limestone 10-20mm gravel, 10- 15mm gravel, 5-10mm gravel, 0-5 stone chips. It has been tested to meet the quality requirements of aggregates for asphalt surface layer in the Technical Specifications for Construction of Highway Asphalt Pavements (JTG F40-2004).
  • the AC-13 color asphalt mixture aggregate is made of limestone ore powder and has been tested to meet the aggregate quality requirements for asphalt surface layer in JTG F40-2004.
  • the optimum oil-stone ratio of the AC-13 asphalt mixture was determined to be 5.0%.
  • Dynamic stability coefficient of variation less than 20%, in line with regulatory requirements The baking material is 160 degrees, the mixing is 160 degrees, the molding is 140 degrees, and the rolling is 100 degrees. It can be seen from the above table that the anti-rutting performance of the asphalt mixture is remarkably improved after the addition of the asphalt modifier of the invention.
  • the dynamic stability of the wheel load of 0.7 MPa can reach 8600 ⁇ 8800 times / mm at 60 ⁇ 1 °C.

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

Abstract

L'invention porte sur un mélange d'asphalte résistant à l'orniérage mélangé à chaud et sur son procédé de préparation, le mélange d'asphalte résistant à l'orniérage mélangé à chaud comprenant un additif d'asphalte mélangé à chaud et un modificateur d'asphalte résistant à l'orniérage ; l'additif d'asphalte mélangé à chaud représentant 2,5 %-5 % en poids du mélange d'asphalte ; et le modificateur d'asphalte résistant à l'orniérage représentant 1 %-6 % en poids du mélange d'asphalte. Le mélange d'asphalte de la présente invention a un effet sur le mélange à chaud évident, il permet de réduire la température de mélange de 30°C ou plus, il permet de réduire la température d'application en revêtement, il améliore spectaculairement la résistance à l'orniérage et la résistance à la fissuration du mélange d'asphalte à de basses températures et il est économiquement rentable.
PCT/CN2012/071903 2011-10-27 2012-03-05 Mélange d'asphalte résistant à l'orniérage mélangé à chaud et son procédé de préparation WO2013060110A1 (fr)

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CN2011103323472A CN103086633A (zh) 2011-10-27 2011-10-27 一种温拌抗车辙的沥青混合料及其制备方法
CN201110332347.2 2011-10-27

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Cited By (2)

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CN109384989A (zh) * 2018-09-21 2019-02-26 山东大学 一种干湿法结合的环保型抗车辙沥青混合料
CN115893926A (zh) * 2022-12-28 2023-04-04 东营新晨源能源科技有限公司 一种抗车辙的沥青混合料及其制备方法

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CN104556803B (zh) * 2013-10-22 2016-08-17 中国石油化工股份有限公司 一种抗车辙改性剂及其制备方法
CN104944843B (zh) * 2015-06-15 2017-08-01 辽宁省交通科学研究院 一种钢桥桥面铺装的高性能沥青混合料及其制备方法
CN105801006B (zh) * 2016-03-07 2017-12-05 郑卫忠 用于重交通道路的沥青混合料及其制备方法
CN111621025B (zh) * 2020-06-15 2021-11-16 山东省高速路桥养护有限公司 一种固体温拌改性双效沥青改性剂及其制备方法
CN113402892B (zh) * 2021-06-22 2022-11-18 武汉品泰新型建材有限公司 一种建筑速凝修补材料及其制备系统与制备方法

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CN101165102A (zh) * 2006-10-20 2008-04-23 深圳市海川实业股份有限公司 一种交通抗车辙的沥青改性剂及其改性沥青和沥青混合料
CN101302348A (zh) * 2007-05-11 2008-11-12 深圳市海川实业股份有限公司 一种温拌沥青混合料及其制备方法
CN101906224A (zh) * 2009-06-03 2010-12-08 深圳市海川实业股份有限公司 抗车辙沥青改性剂及其制备方法,以及改性沥青及其应用

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CN109384989A (zh) * 2018-09-21 2019-02-26 山东大学 一种干湿法结合的环保型抗车辙沥青混合料
CN115893926A (zh) * 2022-12-28 2023-04-04 东营新晨源能源科技有限公司 一种抗车辙的沥青混合料及其制备方法
CN115893926B (zh) * 2022-12-28 2024-04-19 浙江航兴道路建设有限公司 一种抗车辙的沥青混合料及其制备方法

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