CN115572576B - Adhesive layer material for single-particle-size broken stone anti-skid wearing layer and preparation method thereof - Google Patents
Adhesive layer material for single-particle-size broken stone anti-skid wearing layer and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 47
- 239000012790 adhesive layer Substances 0.000 title claims abstract description 28
- 239000010410 layer Substances 0.000 title claims abstract description 28
- 239000004575 stone Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000010426 asphalt Substances 0.000 claims abstract description 68
- 239000000835 fiber Substances 0.000 claims abstract description 28
- 239000002131 composite material Substances 0.000 claims abstract description 26
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 24
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical class C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 23
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 23
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 229920000728 polyester Polymers 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 229920002748 Basalt fiber Polymers 0.000 claims abstract description 12
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 10
- 238000010008 shearing Methods 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 17
- 239000000314 lubricant Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 14
- RLKFNDFGXOQHQN-UHFFFAOYSA-N 2-nonylphenol;phosphorous acid Chemical compound OP(O)O.CCCCCCCCCC1=CC=CC=C1O.CCCCCCCCCC1=CC=CC=C1O.CCCCCCCCCC1=CC=CC=C1O RLKFNDFGXOQHQN-UHFFFAOYSA-N 0.000 claims description 9
- PZRWFKGUFWPFID-UHFFFAOYSA-N 3,9-dioctadecoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound C1OP(OCCCCCCCCCCCCCCCCCC)OCC21COP(OCCCCCCCCCCCCCCCCCC)OC2 PZRWFKGUFWPFID-UHFFFAOYSA-N 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 7
- 230000035515 penetration Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 5
- 239000011707 mineral Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical group OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 abstract description 2
- RRFWWSOELBTKEK-UHFFFAOYSA-N P(O)(O)O.P(O)(O)O.C(CCCCCCCCCCCCCCCCC)C(O)(C(CO)(CO)CO)CCCCCCCCCCCCCCCCCC Chemical compound P(O)(O)O.P(O)(O)O.C(CCCCCCCCCCCCCCCCC)C(O)(C(CO)(CO)CO)CCCCCCCCCCCCCCCCCC RRFWWSOELBTKEK-UHFFFAOYSA-N 0.000 description 7
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- AIBRSVLEQRWAEG-UHFFFAOYSA-N 3,9-bis(2,4-ditert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP1OCC2(COP(OC=3C(=CC(=CC=3)C(C)(C)C)C(C)(C)C)OC2)CO1 AIBRSVLEQRWAEG-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 150000003254 radicals Chemical group 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- RCZRMCMDNRCJSE-UHFFFAOYSA-N OP(O)OP(O)O.C(C)(C)(C)C1=C(C(=CC(=C1)C(C)(C)C)C(C)(C)C)C(O)(C(CO)(CO)CO)C1=C(C=C(C=C1C(C)(C)C)C(C)(C)C)C(C)(C)C Chemical compound OP(O)OP(O)O.C(C)(C)(C)C1=C(C(=CC(=C1)C(C)(C)C)C(C)(C)C)C(O)(C(CO)(CO)CO)C1=C(C=C(C=C1C(C)(C)C)C(C)(C)C)C(C)(C)C RCZRMCMDNRCJSE-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000010130 dispersion processing Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000008301 phosphite esters Chemical group 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides an adhesive layer material for a single-particle-size broken stone anti-skid wearing layer and a preparation method thereof, and belongs to the technical field of road construction engineering. The adhesive layer material for the single-particle-diameter broken stone anti-skid wearing layer comprises the following raw material components in parts by weight: 60-80 parts of asphalt component, 10-20 parts of ethylene-vinyl acetate copolymer, 10-20 parts of modified styrene-butadiene rubber, 1-5 parts of antioxidant and 0.5-5 parts of composite reinforcing fiber; wherein the antioxidant is phosphite antioxidant, and the composite reinforced fiber consists of basalt fiber and polyester fiber. The invention not only remarkably improves the bonding capability of pavement materials to crushed stone mineral aggregates, but also can greatly improve the strength and toughness of the materials, and remarkably improves the pavement performance of the single-particle-diameter crushed stone anti-skid wearing layer.
Description
Technical field:
the invention relates to an adhesive layer material for a single-particle-size broken stone anti-skid wearing layer and a preparation method thereof, and belongs to the technical field of road construction engineering.
The background technology is as follows:
The skid resistance of the asphalt pavement is related to the driving safety and the service life of the road, and is an important concern for road workers at home and abroad in recent years. The material selection and grading composition design of the asphalt mixture are main factors influencing the skid resistance of the pavement. Compared with continuous graded mineral aggregate, asphalt concrete prepared by single-particle-size graded mineral aggregate has larger surface unevenness when used as a road surface anti-skid wearing layer, thereby having better anti-skid performance. Meanwhile, asphalt mixture composed of single-particle-size broken stone has the defects of low compactness, easy scattering as road surface material aggregate and the like.
CN102061099a discloses a strong-cohesiveness emulsified modified asphalt and a preparation method thereof, the strong-cohesiveness emulsified modified asphalt comprises the following components in percentage by mass: 62-70% of SBS modified asphalt, 0.5-1.5% of blending agent, 1-2% of stabilizer, 0.3-0.5% of thickener and the balance of water. The high-cohesiveness emulsified asphalt has the advantages of easily available raw materials and simple preparation process, remarkably improves the cohesiveness of the adhesive layer oil for the ultra-thin wearing layer, but has insufficient high-temperature performance, elasticity and ageing resistance, and influences the service performance of an actual road surface anti-skid wearing layer.
CN111748208B discloses a high adhesion modified asphalt composition and a preparation method thereof, the modified asphalt composition comprises the following components in parts by weight: 100 parts of asphalt, 2-10 parts of thermoplastic elastomer, 4-8 parts of adhesive, 1-4 parts of ASA resin and 0.1-1 part of vulcanized rubber. The modified asphalt composition has higher asphalt cement adhesiveness, and meanwhile, due to the addition of vulcanized rubber and ASA resin, the stability and ageing resistance of asphalt are improved, but the comprehensive strength and elasticity are not obviously improved.
CN1325568C discloses a polymer modified asphalt cement for open graded pavement and a preparation method thereof. The polymer modified asphalt cement comprises the following components in parts by weight: 100 parts of asphalt, 5-10 parts of thermoplastic elastomer, 2-5 parts of rubber polymer and 0.05-0.2 part of cross-linking agent. The polymer modified asphalt cement has higher viscosity, better viscosity and good storage stability, but the high-temperature performance and the comprehensive strength still have the defects.
In summary, the bonding capability of the bonding layer material for the anti-slip wearing layer is improved to a certain extent in the prior art, but the high-temperature performance, elasticity, strength, stability and ageing resistance of the bonding layer material are more or less insufficient, the comprehensive road performance of the bonding layer material is generally not high, and a new bonding layer material for the anti-slip wearing layer is needed to be provided.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the adhesive layer material for the single-particle-size broken stone anti-skid wearing layer and the preparation method thereof, and the obtained material not only improves the bonding capability of the adhesive layer material to broken stone mineral aggregate, but also improves the high-temperature performance, the low-temperature performance, the fatigue resistance, the stability and the ageing resistance of the material.
In order to achieve the above object, the present inventors have adopted the following technical solutions:
the adhesive layer material for the single-particle-size broken stone anti-slip wearing layer comprises the following raw material components in parts by weight:
Asphalt component: 60-80 parts of a lubricant;
Ethylene-vinyl acetate copolymer: 10-20 parts of a lubricant;
modified styrene-butadiene rubber: 10-20 parts of a lubricant;
Antioxidant: 1-5 parts of a lubricant;
composite reinforcing fibers: 0.5-5 parts;
preferably, the bitumen component: 66-75 parts of a lubricant;
Ethylene-vinyl acetate copolymer: 10-20 parts of a lubricant;
modified styrene-butadiene rubber: 10-20 parts of a lubricant;
antioxidant: 2-5 parts of a lubricant;
Composite reinforcing fibers: 2-5 parts of a base material.
The asphalt comprises, by mass, 10-15% of rock asphalt, 20-40% of swill-cooked dirty oil and the balance of petroleum asphalt. The penetration of the rock asphalt is 1-3 mm, the softening point is greater than 200 ℃, and the ash content is 4-5%. The preparation method of the swill-cooked dirty oil comprises the steps of mixing food swill-cooked dirty oil with water, heating, standing for precipitation, and removing water phase. The petroleum asphalt is matrix asphalt with penetration of 60-70 mm.
The ethylene-vinyl acetate copolymer contains 32-68% of vinyl acetate. Vinyl acetate content below 32% is regarded as low density polyethylene modification, and mainly affects the softening point and viscosity of the material, namely improves the high temperature performance of the material, and the influence on the low temperature performance is not obvious; when the content of vinyl acetate is higher than 68%, the material has larger viscosity after melting, and can obtain better modification effect, but the difficulty of dispersion processing of asphalt can be increased, and the engineering quality is affected.
The molecular weight of the modified styrene-butadiene rubber is 10-45 ten thousand. When the molecular weight is less than 10 ten thousand, the mutual interaction force of molecules is small, the viscosity of the material is insufficient, and the bonding effect cannot meet the requirement; when the molecular weight is more than 45 ten thousand, the butylbenzene cannot be well compatible with the asphalt, and separation easily occurs. The styrene-butadiene rubber is prepared by adopting an emulsion polymerization method, and the butadiene content is 25-70%. The butadiene content is lower than 25%, the styrene content is too high, so that the styrene is difficult to dissolve in asphalt, and the modification effect of the polymer on asphalt is poor; the butadiene content is more than 70%, the styrene content is too low, the viscosity and the elasticity of asphalt cannot be obviously improved, and various diseases can be caused in the later stage of the asphalt used as road surface materials.
The antioxidant is phosphite ester type antioxidant, and is one or more of dioctadecyl pentaerythritol diphosphite, tri (nonylphenol) phosphite, di (2, 4-di-tert-butylphenyl) pentaerythritol diphosphite and di (2, 4, 6-tri-tert-butylphenyl) pentaerythritol diphosphite. Preferably, the catalyst is a mixture of distearyl pentaerythritol diphosphite and tris (nonylphenol) phosphite, wherein the content ratio of distearyl pentaerythritol diphosphite to tris (nonylphenol) phosphite is 5:5.
The optimal addition amount of the composite reinforced fiber is 5 parts, the composite reinforced fiber is formed by combining basalt fiber and polyester fiber, and the volume ratio of basalt cellulose to polyester cellulose is 6:4.
The preparation method of the adhesive layer material for the single-particle-size broken stone anti-skid wearing layer comprises the following steps:
firstly, heating the asphalt component to a temperature above the melting point (145 ℃) to enable the asphalt component to be converted into a liquid state;
Secondly, shearing basalt fibers and polyester fibers with a shearing length of 1.5-2.5 cm according to a ratio of 6:4, uniformly mixing to obtain composite reinforced fibers for later use;
Thirdly, uniformly mixing the ethylene-vinyl acetate copolymer, the modified styrene-butadiene rubber and the antioxidant raw materials according to corresponding proportions, adding the mixture into the liquid asphalt obtained in the first step, shearing for 40-55 min at the rotating speed of 4500-7000r/min, and keeping the temperature in the range of 165-185 ℃ during shearing;
And fourthly, adding the mixed composite reinforced fiber obtained in the second step into the mixture obtained in the third step, keeping the temperature between 150 and 185 ℃, and stirring for 50 to 60 minutes at the rotating speed of 700 to 1000r/min to obtain the target product.
The beneficial effects are that: compared with the prior art, the invention has the following advantages:
1. By adding the ethylene-vinyl acetate copolymer and the modified styrene-butadiene rubber, wherein the ethylene-vinyl acetate copolymer is used as a viscosity thickening agent, and the modified styrene-butadiene rubber is used as an elasticity reinforcing agent, the binding capacity of the adhesive layer material to crushed stone mineral aggregate is improved, and meanwhile, the high-temperature performance and the low-temperature performance of the material are comprehensively improved.
2. By adding the inorganic-organic composite reinforced fiber, the strength of the material is obviously improved, the fatigue resistance of the single-particle-size broken stone anti-skid wearing layer is greatly improved, and the tensile strength, the shearing strength and the impact strength of the asphalt pavement and the capability of preventing reflection cracks are obviously improved.
3. The phosphite type antioxidant is added to decompose the hydroperoxide generated by chemical reaction in the preparation process of the target product and convert the hydroperoxide into a free radical-free stable product, so that the reaction of free radical chains further initiated by the free radicals generated by the hydroperoxide is avoided, and the stability and the ageing resistance are greatly improved.
The specific embodiment is as follows:
the technical solution of the present invention is further described below with reference to examples, but is not limited to the following examples:
Example 1:
The adhesive layer material for the single-particle-size broken stone anti-skid wearing layer is prepared from the following raw materials in parts by weight: 75 parts of asphalt component, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of modified styrene-butadiene rubber, 3 parts of dioctadecyl pentaerythritol bisphosphite and 2 parts of composite reinforcing fiber.
The preparation method comprises the following steps:
the first step, heating the asphalt component to 145 ℃ to convert the asphalt component into a liquid state;
secondly, shearing basalt fibers and polyester fibers with the length of 2cm, and uniformly mixing;
Thirdly, uniformly mixing the ethylene-vinyl acetate copolymer, the modified styrene-butadiene rubber and the dioctadecyl pentaerythritol diphosphite according to the corresponding proportion, adding the mixture into liquid asphalt, shearing for 50min at the rotating speed of 7000r/min, and keeping the temperature at 170 ℃ during shearing;
and step four, adding the mixed composite reinforced fiber obtained in the step two into the mixture obtained in the step three, keeping the temperature at 170 ℃, stirring for 50min and the rotating speed at 900r/min to obtain the target product.
Example 2:
The adhesive layer material for the single-particle-size broken stone anti-slip wearing layer is prepared from the following raw materials in parts by weight: 65 parts of asphalt component, 20 parts of ethylene-vinyl acetate copolymer, 10 parts of modified styrene-butadiene rubber, 3 parts of dioctadecyl pentaerythritol bisphosphite and 2 parts of composite reinforcing fiber.
The preparation method comprises the following steps:
the first step, heating the asphalt component to 145 ℃ to convert the asphalt component into a liquid state;
secondly, shearing basalt fibers and polyester fibers with the length of 2cm, and uniformly mixing;
Thirdly, uniformly mixing the ethylene-vinyl acetate copolymer, the modified styrene-butadiene rubber and the dioctadecyl pentaerythritol diphosphite according to the corresponding proportion, adding the mixture into liquid asphalt, shearing for 50min at the rotating speed of 7000r/min, and keeping the temperature at 170 ℃ during shearing;
and step four, adding the mixed composite reinforced fiber obtained in the step two into the mixture obtained in the step three, keeping the temperature at 170 ℃, stirring for 50min and the rotating speed at 900r/min to obtain the target product.
Example 3:
The adhesive layer material for the single-particle-size broken stone anti-skid wearing layer is prepared from the following raw materials in parts by weight: 65 parts of asphalt component, 10 parts of ethylene-vinyl acetate copolymer, 20 parts of modified styrene-butadiene rubber, 3 parts of dioctadecyl pentaerythritol bisphosphite and 2 parts of composite reinforcing fiber.
The preparation method comprises the following steps:
the first step, heating the asphalt component to 145 ℃ to convert the asphalt component into a liquid state;
secondly, shearing basalt fibers and polyester fibers with the length of 2cm, and uniformly mixing;
Thirdly, uniformly mixing the ethylene-vinyl acetate copolymer, the modified styrene-butadiene rubber and the dioctadecyl pentaerythritol diphosphite according to the corresponding proportion, adding the mixture into liquid asphalt, shearing for 50min at the rotating speed of 7000r/min, and keeping the temperature at 170 ℃ during shearing;
and step four, adding the mixed composite reinforced fiber obtained in the step two into the mixture obtained in the step three, keeping the temperature at 170 ℃, stirring for 50min and the rotating speed at 900r/min to obtain the target product.
Example 4:
The adhesive layer material for the single-particle-size broken stone anti-slip wearing layer is prepared from the following raw materials in parts by weight: 75 parts of an asphalt component, 10 parts of an ethylene-vinyl acetate copolymer, 10 parts of modified styrene-butadiene rubber, 3 parts of a mixture of dioctadecyl pentaerythritol bisphosphite and tris (nonylphenol) phosphite (the weight ratio of the two is 5:5), and 2 parts of composite reinforcing fibers.
The preparation method comprises the following steps:
the first step, heating the asphalt component to 145 ℃ to convert the asphalt component into a liquid state;
secondly, shearing basalt fibers and polyester fibers with the length of 2cm, and uniformly mixing;
Thirdly, uniformly mixing the ethylene-vinyl acetate copolymer, the modified styrene-butadiene rubber, the bis (2, 4-di-tert-butylphenyl) pentaerythritol diphosphite and the tris (nonylphenol) phosphite according to the corresponding proportion, adding the mixture into liquid asphalt, shearing for 50min at the rotating speed of 7000r/min, and keeping the temperature at about 170 ℃ during shearing;
and step four, adding the mixed composite reinforced fiber obtained in the step two into the mixture obtained in the step three, keeping the temperature at 170 ℃, stirring for 50min and the rotating speed at 900r/min to obtain the target product.
Example 5:
The adhesive layer material for the single-particle-size broken stone anti-slip wearing layer is prepared from the following raw materials in parts by weight: 72 parts of asphalt component, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of modified styrene-butadiene rubber, 3 parts of dioctadecyl pentaerythritol bisphosphite and 5 parts of composite reinforcing fiber.
The preparation method comprises the following steps:
the first step, heating the asphalt component to 145 ℃ to convert the asphalt component into a liquid state;
secondly, shearing basalt fibers and polyester fibers with the length of 2cm, and uniformly mixing;
Thirdly, uniformly mixing the ethylene-vinyl acetate copolymer, the modified styrene-butadiene rubber and the dioctadecyl pentaerythritol diphosphite according to corresponding proportions, adding the mixture into liquid asphalt, shearing for 50min at a rotating speed of 7000r/min, and keeping the temperature at about 170 ℃ during shearing;
and step four, adding the mixed composite reinforced fiber obtained in the step two into the mixture obtained in the step three, keeping the temperature at 170 ℃, stirring for 50min and the rotating speed at 900r/min to obtain the target product.
The raw materials and components used in examples 1-5 are shown in Table 1:
TABLE 1
The property measurements of the materials obtained in examples 1-5 are shown in Table 2:
TABLE 2
As can be seen from table 2, the adhesive layer material for the single-particle-diameter gravel anti-skid wearing layer provided by the invention fully plays the effective roles of the components through the good compatibility of the asphalt component and other components, has obviously improved adhesive performance, has more excellent comprehensive road performance and has higher practicability.
As can be seen from a comparison of example 1 and example 2, the ethylene-vinyl acetate copolymer content was increased, the penetration of the adhesive layer material was decreased, the kinematic viscosity was increased, and the softening point was also increased, and it was found that the addition of the ethylene-vinyl acetate copolymer in the adhesive layer material had a significant effect on the increase in viscosity and the improvement in high temperature performance.
As can be seen from comparison of example 1 and example 3, the content of the modified styrene-butadiene rubber is increased, the elastic recovery rate of the adhesive layer material is increased, and the phase angle is reduced, and it is seen that the addition of the modified styrene-butadiene rubber has a significant influence on the enhancement of elasticity in the adhesive layer material.
From comparison of example 1 and example 4, it can be seen that the residual ductility ratio of the adhesive layer material after the film oven test is increased by using the antioxidant formed by combining the distearyl pentaerythritol bisphosphite and the tris (nonylphenol) phosphite, and the antioxidant formed by combining the distearyl pentaerythritol bisphosphite and the tris (nonylphenol) phosphite has more remarkable effect of improving the anti-aging performance in the adhesive layer material.
As can be seen from comparison of example 1 and example 5, the content of the basalt fiber and polyester fiber composite reinforced fiber is increased, and the complex shear modulus of the adhesive layer material is increased, so that the basalt fiber and polyester fiber composite reinforced fiber has a significant influence on the improvement of the strength in the adhesive layer material.
While the above-described preferred embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art from this disclosure that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention.
Claims (3)
1. The adhesive layer material for the single-particle-size broken stone anti-slip wearing layer is characterized by comprising the following raw materials in parts by weight:
Asphalt component: 60-80 parts of a lubricant;
Ethylene-vinyl acetate copolymer: 10-20 parts of a lubricant;
modified styrene-butadiene rubber: 10-20 parts of a lubricant;
Antioxidant: 1-5 parts of a lubricant;
composite reinforcing fibers: 0.5-5 parts;
The asphalt comprises, by mass, 10-15% of rock asphalt, 20-40% of swill-cooked dirty oil and the balance of petroleum asphalt; the penetration of the rock asphalt is 1-3 mm, the softening point is greater than 200 ℃, and the ash content is 4-5%; the preparation method of the swill-cooked dirty oil comprises the steps of mixing food swill-cooked dirty oil with water, heating, standing for precipitation, and removing water phase, wherein the petroleum asphalt is matrix asphalt with penetration of 60-70 mm;
the ethylene-vinyl acetate copolymer comprises 32-68% of vinyl acetate;
The molecular weight of the modified styrene-butadiene rubber is 10-45 ten thousand;
The antioxidant is a mixture of distearyl pentaerythritol diphosphite and tris (nonylphenol) phosphite, wherein the content ratio of distearyl pentaerythritol diphosphite to tris (nonylphenol) phosphite is 5:5, a step of;
the composite reinforced fiber is formed by combining basalt fiber and polyester fiber, wherein the content ratio of basalt cellulose to polyester cellulose is 6:4.
2. The adhesive layer material for the single-particle-diameter macadam anti-skid wearing layer according to claim 1, which is characterized by comprising the following raw materials in parts by weight:
Asphalt component: 66-75 parts of a lubricant;
Ethylene-vinyl acetate copolymer: 10-20 parts of a lubricant;
modified styrene-butadiene rubber: 10-20 parts of a lubricant;
antioxidant: 2-5 parts of a lubricant;
Composite reinforcing fibers: 2-5 parts of a base material.
3. The method for preparing the adhesive layer material for the single-particle-diameter crushed stone anti-skid wearing layer as claimed in claim 1 or 2, which is characterized by comprising the following steps:
the first step, heating the asphalt component to a melting point of 145 ℃ or above to convert the asphalt component into a liquid state;
Secondly, shearing basalt fibers and polyester fibers with a shearing length of 1.5-2.5 cm according to a ratio of 6:4, uniformly mixing to obtain composite reinforced fibers for later use;
Thirdly, uniformly mixing the ethylene-vinyl acetate copolymer, the modified styrene-butadiene rubber and the antioxidant raw materials according to corresponding proportions, adding the mixture into the liquid asphalt obtained in the first step, shearing for 40-55 min at the rotating speed of 4500-7000r/min, and keeping the temperature in the range of 165-185 ℃ during shearing;
And fourthly, adding the mixed composite reinforced fiber obtained in the second step into the mixture obtained in the third step, keeping the temperature between 150 and 185 ℃, and stirring for 50 to 60 minutes at the rotating speed of 700 to 1000r/min to obtain the target product.
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| JPH07316437A (en) * | 1994-05-27 | 1995-12-05 | Fuji Kosan Kk | Asphalt improver and method for improving asphalt |
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| CN109852085A (en) * | 2019-02-14 | 2019-06-07 | 河北长大交通科技有限公司 | A kind of high adhered modification pitch and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07316437A (en) * | 1994-05-27 | 1995-12-05 | Fuji Kosan Kk | Asphalt improver and method for improving asphalt |
| CN108559284A (en) * | 2018-04-17 | 2018-09-21 | 广州大象超薄路面技术开发有限公司 | A kind of thin overlay sticking layer oil and its preparation method and application |
| CN109852085A (en) * | 2019-02-14 | 2019-06-07 | 河北长大交通科技有限公司 | A kind of high adhered modification pitch and preparation method thereof |
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