CN113004707A - Additive for high-viscosity high-elasticity asphalt and preparation method and application thereof - Google Patents
Additive for high-viscosity high-elasticity asphalt and preparation method and application thereof Download PDFInfo
- Publication number
- CN113004707A CN113004707A CN201911326246.7A CN201911326246A CN113004707A CN 113004707 A CN113004707 A CN 113004707A CN 201911326246 A CN201911326246 A CN 201911326246A CN 113004707 A CN113004707 A CN 113004707A
- Authority
- CN
- China
- Prior art keywords
- parts
- asphalt
- additive
- resin
- elasticity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
Landscapes
- 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)
Abstract
The invention relates to an additive for high-viscosity high-elasticity asphalt, a preparation method and an application thereof, belonging to the technical field of asphalt additives, wherein the additive comprises the following components in parts by weight: 5-15 parts of petroleum resin, 5-15 parts of terpene resin, 3-8 parts of terpene phenolic resin, 60-80 parts of thermoplastic elastomer, 5-15 parts of ethylene-vinyl acetate copolymer and 1-2 parts of amide dispersant; the thermoplastic elastomer is used as a main material, the petroleum resin, the terpene resin and the terpene phenolic resin are added as tackifying resins, the ethylene-vinyl acetate copolymer is added as a reinforcing agent and a compatilizer, the additive is softened under the action of high temperature in the process of mixing with the asphalt, the coarse aggregate and the fine aggregate, is fully combined with the asphalt, the coarse aggregate and the fine aggregate, and is filled and extruded into gaps of a grading framework, so that the relative sliding between the coarse aggregate and the fine aggregate is limited, and the bonding strength of the asphalt, the coarse aggregate and the fine aggregate is enhanced.
Description
Technical Field
The invention relates to the technical field of asphalt additives, in particular to an additive for high-viscosity high-elasticity asphalt and a preparation method and application thereof.
Background
The OGFC colorful permeable asphalt pavement is a colorful pavement which is formed by paving high-viscosity colorful modified asphalt, pigment and large-gap (generally about 20 percent) high-quality aggregate, has excellent functions of drainage, skid resistance, noise reduction and the like, is a safe and environment-friendly ecological asphalt concrete pavement paving technology, and is suitable for sponge cities which are vigorously built by China; in addition, the OGFC has the functions of drainage, skid resistance, noise reduction and the like, and can also divide traffic intervals with different properties through color change; the colored pavement is paved on special road sections such as sharp-turning steep slopes of roads, crossroads, roads for children to learn, gas stations and the like, so that the warning effect can be achieved; can also relieve visual fatigue; beautifies the street space environment, and makes the street space become the favorite urban high-quality living space.
Drainage type OGFC road surface generally includes following several structural layers: the waterproof asphalt concrete building block comprises a drainage asphalt mixture upper surface layer, an emulsified asphalt waterproof adhesive layer, a dense-graded asphalt concrete middle surface layer, a dense-graded asphalt concrete lower surface layer, a semi-rigid base layer and a subbase layer; in the upper layer of the drainage asphalt mixture, the drainage asphalt mixture has more coarse aggregates and less fine aggregates, strong interlocking effect cannot be formed among particles, and the bonding strength of asphalt, the coarse aggregates and the fine aggregates mainly depends on the bonding effect of a cementing material, so that a high-viscosity additive capable of firmly bonding the coarse aggregates, the fine aggregates and the asphalt in the drainage asphalt mixture is developed.
Disclosure of Invention
The invention aims to provide an additive for high-viscosity high-elasticity asphalt, a preparation method and application thereof.
The above object of the present invention is achieved by the following technical solutions:
an additive for high-viscosity high-elasticity asphalt comprises the following components in parts by weight:
5-15 parts of petroleum resin, 5-15 parts of terpene resin, 3-8 parts of terpene phenolic resin, 60-80 parts of thermoplastic elastomer, 5-15 parts of ethylene-vinyl acetate copolymer and 1-2 parts of amide dispersant.
By adopting the technical scheme, the thermoplastic elastomer is taken as the main material, so that the additive is ensured to have excellent high elasticity, and meanwhile, the additive is ensured to have good low-temperature resistance; petroleum resin, terpene resin and terpene phenolic resin are added as tackifying resin, after the ethylene-vinyl acetate copolymer is added, the dynamic viscosity of the asphalt at 60 ℃ can be obviously improved, the two components can improve the bonding strength of coarse aggregate, fine aggregate and the asphalt, and the ethylene-vinyl acetate copolymer can also be used as a compatilizer, so that the bonding of the tackifying resin and the thermoplastic elastomer is facilitated; the components are compounded, the compatibility design is reasonable, the preparation of the additive is realized, the additive is softened under the action of high temperature in the process of mixing the additive with asphalt, coarse aggregate and fine aggregate, the additive is fully combined with the asphalt, the coarse aggregate and the fine aggregate, and the additive is filled and extruded into gaps of a grading framework, so that the relative sliding between the coarse aggregate and the fine aggregate is limited, the interaction force between drainage asphalt mixtures is enhanced, and the bonding strength of the asphalt, the coarse aggregate and the fine aggregate is improved; the additive is applied to asphalt and can also improve the high elasticity and low temperature resistance of the asphalt.
The invention is further configured to: the thermoplastic elastomer is selected from one of oil-extended SBS and TPU or is prepared from the following components in percentage by weight of 1:1, compounding.
By adopting the technical scheme, the SBS is a styrene-butadiene thermoplastic elastomer for short, has the advantages of light weight, good elasticity and low temperature resistance, the oil-filled SBS is adopted, the micromolecular grease is embedded into the macromolecular SBS, the interaction force among the macromolecules can be reduced after oil is filled, and the lubricating effect is generated, macroscopically, the oil-filled SBS has good flexibility and fluidity and is easy to mix with other components, and the easy combination of the additive and the asphalt is improved; the TPU is thermoplastic polyurethane elastomer rubber, has wide hardness range, good wear resistance, oil resistance, transparency and high elasticity, does not deform or crack at minus 40-60 ℃, adopts one or two of oil-filled SBS and TPU to be compounded as a main material of the additive, and can obviously improve the high elasticity and the low temperature resistance of the additive.
The invention is further configured to: the oil-extended SBS is prepared by the following method: soaking 10-15 parts by weight of aromatic oil in 100 parts by weight of SBS, standing for 1-2 hours, then placing the oil-filled SBS on an open mill, and blending for 30-45 min at 110-115 ℃; and (3) dripping 3-5 parts by weight of fatty alcohol-polyoxyethylene ether, and uniformly mixing.
By adopting the technical scheme, aromatic hydrocarbon oil is adopted for impregnation in SBS, the aromatic hydrocarbon oil has the function of improving the processing performance, the oil-filled SBS is beneficial to improving the mixing and dispersing performance with other components, the main components of the aromatic hydrocarbon oil are aromatic components and colloid, the main components of the asphalt are aromatic components, colloid, asphaltene and the like, the bonding performance of the oil-filled SBS and the asphalt can be improved according to the similar compatibility function, and in addition, the low temperature resistance of the asphalt can be increased to the maximum extent after the aromatic hydrocarbon oil is added; the fatty alcohol-polyoxyethylene ether has good detergency, wetting property, emulsification property and hard water resistance, and the aromatic oil can be promoted to be impregnated and dissolved in SBS by dripping the fatty alcohol-polyoxyethylene ether.
The invention is further configured to: the petroleum resin is C5 petroleum resin and C9 petroleum resin compounded in a weight ratio of 1: 1.
By adopting the technical scheme, the C5 petroleum resin has higher peel adhesion strength, good quick adhesion, stable adhesion performance, good compatibility with asphalt-based components and excellent aging resistance; the C9 petroleum resin contains double bonds, has large cohesive force, good compatibility with terpene resin and thermoplastic elastic elastomer, and also has tackifying effect, the C5 petroleum resin and the C9 petroleum resin are compounded for use, so that the tackifying effect and the ageing resistance are excellent, the compatibility with the terpene resin, the terpene phenolic resin and the thermoplastic elastic elastomer can be obviously improved after compounding, and the compatibility with asphalt-based components is good.
The invention is further configured to: the content of vinyl acetate in the ethylene-vinyl acetate copolymer is 35-40%.
By adopting the technical scheme, the content of vinyl acetate in the ethylene-vinyl acetate copolymer is limited to 35-40%, the crystallinity of branched chains in the ethylene-vinyl acetate copolymer is greatly reduced, the distance between molecular chains is increased, and compared with a PE material, the additive has more excellent elasticity and flexibility.
The second aim of the invention is realized by the following technical scheme:
a preparation method of an additive for high-viscosity high-elasticity asphalt comprises the following steps:
(1) preparing materials: weighing 5-15 parts of petroleum resin, 5-15 parts of terpene resin, 3-8 parts of terpene phenolic resin, 60-80 parts of thermoplastic elastomer, 5-15 parts of ethylene-vinyl acetate copolymer and 1-2 parts of amide dispersant by weight;
(2) uniformly mixing a thermoplastic elastomer, petroleum resin, terpene phenolic resin, ethylene-vinyl acetate copolymer and an amide dispersant to form a preformed body;
(3) putting the preformed body into a double-screw extruder, shearing and stirring for 1.5-2 h at 205-215 ℃, and then extruding and molding by a die head at 150-160 ℃;
(4) and (6) granulating.
By adopting the technical scheme, the thermoplastic elastomer, the petroleum resin, the terpene phenolic resin and the ethylene-vinyl acetate copolymer are mixed, and after the mixture is uniformly mixed, the mixture is put into a double-screw extruder, so that the processing process is convenient and rapid, and the molding is stable.
The third object of the invention is realized by the following technical scheme:
the additive is applied to preparing high-elasticity and high-viscosity asphalt, paving OTFG (over the fiber reinforced plastic) permeable asphalt pavement, SMA (surface mounted materials) pavement or steel bridge pavement.
By adopting the technical scheme, the additive can be suitable for preparing high-viscosity high-elasticity asphalt, and can also be added into paved OTFG permeable asphalt pavements, SMA pavements or steel bridge decks, so that the overall strength, high elasticity and low temperature resistance of the asphalt or the pavements or the bridge decks can be obviously improved.
In conclusion, the beneficial technical effects of the invention are as follows:
1. high viscosity: the asphalt takes the thermoplastic elastomer as a main material, adds the petroleum resin, the terpene resin and the terpene phenolic resin as tackifying resins, adds the ethylene-vinyl acetate copolymer, can further tackify, and can also improve the compatibility of the tackifying resins and the main material;
2. high elasticity: the additive takes the thermoplastic elastomer as a main material, is beneficial to preparing the high-elasticity additive, and can further improve the elasticity of the additive by adding the ethylene-vinyl acetate copolymer; the oil-filled SBS is adopted, so that the high elasticity of the asphalt can be further improved;
3. excellent low temperature resistance: the thermoplastic elastomer is used as a main material, so that the additive has excellent low-temperature resistance, and the three resins have synergistic effect and are favorable for promoting the improvement of the low-temperature resistance of the formed asphalt; the addition of ethylene-vinyl acetate copolymer can also promote the low temperature resistance of the formed asphalt;
4. easy workability: the selected terpene resin, petroleum resin and terpene phenolic resin have approximate melting temperature and low processing difficulty.
Detailed Description
The present invention will be described in further detail with reference to examples.
The petroleum resin C5, the petroleum resin C9, the terpene resin and the terpene phenolic resin are all sold in the market, and the melting temperature is about 120-140 ℃; the amide dispersant is purchased from a special asphalt dispersant EBS produced by Shenzhen Jinrumo engineering and technology Limited; SBS is SBS granule 792E (YH-1401E) produced by the Baling petrochemical company; the TPU is selected from C85A10 thermoplastic polyurethane TPU particles produced by German Basff; the aromatic oil is aromatic oil produced by Ziboyi petrochemical industry Co.
Preparation of raw materials example one:
an oil-extended SBS is prepared by the following method: soaking 10 parts by weight of aromatic oil in 100 parts by weight of SBS, standing for 1.5h, then placing the oil-filled SBS on an open mill, and blending for 40min at 110 ℃; 3 parts of fatty alcohol-polyoxyethylene ether is added in, and the mixture is mixed evenly.
Preparation example two of raw materials:
an oil-extended SBS is prepared by the following method: dipping 12 parts by weight of aromatic oil into 100 parts by weight of SBS, standing for 1.5h, then placing the oil-filled SBS on an open mill, and blending for 40min at 110 ℃; dripping 4 parts by weight of fatty alcohol-polyoxyethylene ether, and mixing uniformly.
Preparation example three of raw materials:
an oil-extended SBS is prepared by the following method: soaking 15 parts by weight of aromatic oil in 100 parts by weight of SBS, standing for 1.5h, then placing the oil-filled SBS on an open mill, and blending for 40min at 110 ℃; 5 parts of fatty alcohol-polyoxyethylene ether is dripped in, and the mixture is mixed evenly.
The first embodiment is as follows:
an additive for high-viscosity high-elasticity asphalt is prepared by the following method:
(1) preparing materials: weighing 2.5 parts of C5 petroleum resin, 2.5 parts of C9 petroleum resin, 5 parts of terpene resin, 3 parts of terpene phenolic resin, 60 parts of oil-extended SBS prepared in the first raw material preparation example, 5 parts of ethylene-vinyl acetate copolymer and 1 part of amide dispersant according to parts by weight;
(2) uniformly mixing oil-extended SBS, petroleum resin, terpene phenolic resin, ethylene-vinyl acetate copolymer and amide dispersant to form a preformed body;
(3) putting the preformed body into a double-screw extruder, shearing and stirring for 2 hours at 210 ℃, and then extruding and molding at the die head temperature of 150 ℃;
(4) and (6) granulating.
Example two:
an additive for high-viscosity high-elasticity asphalt is different from the additive prepared in the first embodiment in that the oil-extended SBS is prepared from the second preparation example.
Example three:
an additive for high-viscosity high-elasticity asphalt is different from the additive prepared in the first embodiment in that the oil-extended SBS is prepared from the third preparation example.
Example four:
an additive for high-viscosity high-elasticity asphalt is prepared by the following method:
(1) preparing materials: weighing 4 parts of C5 petroleum resin, 4 parts of C9 petroleum resin, 7 parts of terpene resin, 5 parts of terpene phenolic resin, 65 parts of oil-extended SBS prepared in the second raw material preparation example, 8 parts of ethylene-vinyl acetate copolymer and 1.2 parts of amide dispersant according to the parts by weight;
(2) uniformly mixing oil-extended SBS, petroleum resin, terpene phenolic resin, ethylene-vinyl acetate copolymer and amide dispersant to form a preformed body;
(3) putting the preformed body into a double-screw extruder, shearing and stirring for 2 hours at 210 ℃, and then extruding and molding at the die head temperature of 150 ℃;
(4) and (6) granulating.
Example five:
an additive for high-viscosity high-elasticity asphalt is prepared by the following method:
(1) preparing materials: weighing 5 parts of C5 petroleum resin, 5 parts of C9 petroleum resin, 10 parts of terpene resin, 6 parts of terpene phenolic resin, 70 parts of oil-extended SBS prepared in the second raw material preparation example, 10 parts of ethylene-vinyl acetate copolymer and 1.5 parts of amide dispersant according to the parts by weight;
(2) uniformly mixing oil-extended SBS, petroleum resin, terpene phenolic resin, ethylene-vinyl acetate copolymer and amide dispersant to form a preformed body;
(3) putting the preformed body into a double-screw extruder, shearing and stirring for 2 hours at 205 ℃, and then extruding and molding at the die head temperature of 155 ℃;
(4) and (6) granulating.
Example six:
an additive for high-viscosity high-elasticity asphalt is prepared by the following method:
(1) preparing materials: weighing 6.5 parts of C5 petroleum resin, 6.5 parts of C9 petroleum resin, 12 parts of terpene resin, 7 parts of terpene phenolic resin, 75 parts of oil-extended SBS prepared in the second raw material preparation example, 12 parts of ethylene-vinyl acetate copolymer and 1.7 parts of amide dispersant according to parts by weight;
(2) uniformly mixing oil-extended SBS, petroleum resin, terpene phenolic resin, ethylene-vinyl acetate copolymer and amide dispersant to form a preformed body;
(3) putting the preformed body into a double-screw extruder, shearing and stirring for 2 hours at 210 ℃, and then extruding and molding at the die head temperature of 160 ℃;
(4) and (6) granulating.
Example seven:
an additive for high-viscosity high-elasticity asphalt is prepared by the following method:
(1) preparing materials: weighing 7.5 parts of C5 petroleum resin, 7.5 parts of C9 petroleum resin, 15 parts of terpene resin, 8 parts of terpene phenolic resin, 80 parts of oil-extended SBS prepared in the second raw material preparation example, 15 parts of ethylene-vinyl acetate copolymer and 2 parts of amide dispersant according to the parts by weight;
(2) uniformly mixing oil-extended SBS, petroleum resin, terpene phenolic resin, ethylene-vinyl acetate copolymer and amide dispersant to form a preformed body;
(3) putting the preformed body into a double-screw extruder, shearing and stirring for 2 hours at 210 ℃, and then extruding and molding at the die head temperature of 160 ℃;
(4) and (6) granulating.
Example eight:
an additive for high-viscosity high-elasticity asphalt is prepared by the following method:
(1) preparing materials: weighing 6.5 parts of C5 petroleum resin, 6.5 parts of C9 petroleum resin, 12 parts of terpene resin, 7 parts of terpene phenolic resin, 75 parts of TPU, 12 parts of ethylene-vinyl acetate copolymer and 1.7 parts of amide dispersant according to parts by weight;
(2) uniformly mixing TPU, petroleum resin, terpene phenolic resin, ethylene-vinyl acetate copolymer and amide dispersant to form a preformed body;
(3) putting the preformed body into a double-screw extruder, shearing and stirring for 2 hours at 210 ℃, and then extruding and molding at the die head temperature of 160 ℃;
(4) and (6) granulating.
Example nine:
compared with the eighth embodiment, the additive for the high-viscosity high-elasticity asphalt is different from the eighth embodiment in that 75 parts of TPU is replaced by 37.5 parts of SBS and 37.5 parts of TPU.
Example ten:
the additive is applied to paving OTFG permeable asphalt pavement.
Example eleven:
the additive can also be applied to high-viscosity high-elasticity SMA asphalt mixed road pavement, airport covering pavement, viaduct bridges and high-grade road surface highways.
Example twelve:
the additive can be applied to paving of steel bridge decks.
Comparative example one:
an additive for high-viscosity and high-elasticity asphalt is different from the additive in the sixth embodiment in that an ethylene-vinyl acetate copolymer is absent.
Comparative example two:
an additive for high viscosity and high elasticity asphalt is different from the additive of the sixth embodiment in that terpene phenolic resin is absent.
Comparative example three:
an additive for high-viscosity and high-elasticity asphalt is different from that of example six in that petroleum resin is absent.
Comparative example four:
an additive for high-viscosity and high-elasticity asphalt is different from the additive of example six in that a terpene resin is absent.
Comparative example five:
an additive for high-viscosity and high-elasticity asphalt is different from that of example six in that petroleum resin and terpene resin are absent.
Comparative example six:
an additive for high-viscosity and high-elasticity asphalt is different from the additive in the sixth embodiment in that petroleum resin and terpene phenolic resin are lacked.
Comparative example seven:
an additive for high viscosity and high elasticity asphalt is different from the additive of the sixth embodiment in that terpene resin and terpene phenolic resin are absent.
Comparative example eight: a high viscosity asphalt modifier manufactured by science and technology Limited, Shenyang bright, was purchased as a reference.
Comparative example nine:
an additive for high-viscosity and high-elasticity asphalt is different from that of the second embodiment in that the thermoplastic elastomer is non-oil-extended SBS.
The detection means is as follows:
the conditions of the raw materials used in the detection process of the test are as follows: coarse and fine aggregates: crushing Beijing limestone; asphalt: grade a grade 70 petroleum asphalt; mineral powder: mineral powder with fineness of 400m is produced by Beijing2Per kg; the test is carried out according to the test regulations of road engineering asphalt and asphalt mixture (JTG E20-2011) and the technical specification of road asphalt pavement construction (JTG F40-2004).
The asphalt adopted in the detection is 70# A-grade road petroleum asphalt, and the detection results are shown in the following table:
the type of the mixture used in the detection is AC-20C, and the specific gradation is shown in the following table:
(1) bonding strength: the additives related to the examples and the comparative examples are respectively adopted and added into No. 70 road asphalt, and Marshall test is carried out according to the above synthetic grading ingredients under the condition that the oil-stone ratio is 4.4%, wherein the adding amount of the additive is 0.4% of the total amount of the asphalt mixture, and the detection results are shown in the following table:
according to the above table, it can be seen that the oil-extended SBS has a promoting effect on improving the overall strength of the asphalt mixture in the first to third examples and the ninth comparative example; according to the second embodiment and the fourth to ninth embodiments, the additive has excellent high viscosity, and can firmly bond asphalt with coarse aggregate and fine aggregate; according to the samples in the examples and the first comparative example, the ethylene-vinyl acetate copolymer is blended with the tackifying resin to achieve excellent high viscosity, so that the asphalt is mixed with coarse aggregates and fine aggregates; according to the second to seventh comparative examples, the petroleum resin, the terpene resin and the terpene phenolic resin are blended to generate a synergistic effect, so that the viscosity of the additive can be obviously improved; as can be seen from the examples and the comparative example eight, the performance of the additive is far better than that of a product sold in the market, the additive has high tackifying effect, and the overall strength of the asphalt mixture can be improved; in addition, the additive has excellent water repellency, has high residue degree after being soaked in water, and is an important index for reflecting the integral strength of asphalt in use.
(2) Low temperature resistance: the additives related to the examples and the comparative examples are respectively adopted and added into No. 70 road asphalt, the mixing amount of the additive is 0.4 percent of the total amount of the asphalt mixture, the additives are compounded according to the synthetic gradation, and the low-temperature resistance test is carried out on an indoor formed AC-20C asphalt mixture test piece under the condition that the oilstone ratio is 4.4 percent, and the test results are shown in the following table:
as can be seen from the above table, according to each example and the ninth comparative example, the oil-extended SBS can significantly improve the low temperature resistance of the asphalt compared to the non-oil-extended SBS; according to the sixth embodiment and the eighth embodiment, the thermoplastic elastomer adopts TPU samples, and the low temperature resistance equivalent to that of the oil-extended SBS can be achieved; according to the examples and the first comparative example, the addition of the ethylene-vinyl acetate copolymer has an effect of promoting the low temperature resistance of the asphalt; according to the second to seventh comparative examples, the petroleum resin, the terpene resin and the terpene phenolic resin generate synergistic action, and the low-temperature resistance of the asphalt can be improved besides the tackifying effect; according to the eighth comparative example, the additive of the present application has a significantly better low temperature resistance than the equivalent product.
(3) High elasticity: the test piece specification is cylinder 100mm in diameter, height 100mm, adopts the side method, under each test condition, and the dynamic load effect is 200 cycles, and the elastic modulus is calculated by taking the average value of the stress and elastic strain amplitude of the last 5 cycles, and the detection result is shown in the following table:
| sample (I) | Dynamic modulus of elasticity (Mpa) |
| Example two | 9023.32 |
| Example four | 9056.27 |
| EXAMPLE five | 9105.11 |
| EXAMPLE six | 9168.39 |
| EXAMPLE seven | 9186.09 |
| Comparative example 1 | 8569.31 |
| Comparative example eight | 8633.29 |
| Comparative example No. nine | 8976.02 |
As can be seen from the above table, the additive of the present application has more excellent elasticity and very low elastic deformation, and compared with the sample of comparative example eight, the high elasticity performance is obviously superior to that of the like product; according to the embodiment, compared with the comparative example I, the addition of the ethylene-vinyl acetate copolymer can promote the improvement of the high elastic performance of the asphalt; the thermoplastic elastomer adopts oil-extended SBS, and has more excellent high elasticity compared with a sample without oil extension.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The additive for the high-viscosity high-elasticity asphalt is characterized by being formed by mixing the following components in parts by weight:
5-15 parts of petroleum resin, 5-15 parts of terpene resin, 3-8 parts of terpene phenolic resin, 60-80 parts of thermoplastic elastomer, 5-15 parts of ethylene-vinyl acetate copolymer and 1-2 parts of amide dispersant.
2. An additive for high-viscosity high-elasticity asphalt as claimed in claim 1, wherein: the thermoplastic elastomer is selected from one of oil-extended SBS and TPU or is prepared from the following components in percentage by weight of 1:1, compounding.
3. An additive for high-viscosity high-elasticity asphalt as claimed in claim 2, wherein: the oil-extended SBS is prepared by the following method: soaking 10-15 parts by weight of aromatic oil in 100 parts by weight of SBS, standing for 1-2 hours, then placing the oil-filled SBS on an open mill, and blending for 30-45 min at 110-115 ℃; and (3) dripping 3-5 parts by weight of fatty alcohol-polyoxyethylene ether, and uniformly mixing.
4. An additive for high-viscosity high-elasticity asphalt as claimed in claim 1, wherein: the petroleum resin is C5 petroleum resin and C9 petroleum resin compounded in a weight ratio of 1: 1.
5. An additive for high-viscosity high-elasticity asphalt as claimed in claim 1, wherein: the content of vinyl acetate in the ethylene-vinyl acetate copolymer is 35-40%.
6. The method for preparing the additive for the high-viscosity high-elasticity asphalt as claimed in any one of claims 1 to 5, comprising the following steps:
(1) preparing materials: weighing 5-15 parts of petroleum resin, 5-15 parts of terpene resin, 3-8 parts of terpene phenolic resin, 60-80 parts of thermoplastic elastomer, 5-15 parts of ethylene-vinyl acetate copolymer and 1-2 parts of amide dispersant by weight;
(2) uniformly mixing a thermoplastic elastomer, petroleum resin, terpene phenolic resin, ethylene-vinyl acetate copolymer and an amide dispersant to form a preformed body;
(3) putting the preformed body into a double-screw extruder, shearing and stirring for 1.5-2 h at 205-215 ℃, and then extruding and molding by a die head at 150-160 ℃;
(4) and (6) granulating.
7. The use of the additive for high-viscosity high-elasticity asphalt as claimed in any one of claims 1 to 6, wherein: the additive is applied to preparing high-elasticity and high-viscosity asphalt, paving OTFG (over the fiber reinforced plastic) permeable asphalt pavement, SMA (surface-mounted alloy) pavement or paving steel bridge surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911326246.7A CN113004707B (en) | 2019-12-20 | 2019-12-20 | Additive for high-viscosity high-elasticity asphalt and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911326246.7A CN113004707B (en) | 2019-12-20 | 2019-12-20 | Additive for high-viscosity high-elasticity asphalt and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113004707A true CN113004707A (en) | 2021-06-22 |
| CN113004707B CN113004707B (en) | 2022-07-05 |
Family
ID=76382059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911326246.7A Active CN113004707B (en) | 2019-12-20 | 2019-12-20 | Additive for high-viscosity high-elasticity asphalt and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113004707B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812234A (en) * | 2010-04-16 | 2010-08-25 | 湖南路桥路翔工程有限公司 | Waste rubber powder/waste plastics/SBS composite modified asphalt and preparation method thereof |
| CN105542259A (en) * | 2015-12-24 | 2016-05-04 | 山东阳谷华泰化工股份有限公司 | Flow promoting agent capable of improving processability of styrene-butadiene rubber and preparation method of flow promoting agent |
| CN107118574A (en) * | 2017-01-16 | 2017-09-01 | 深圳市天之泰道路材料有限公司 | A kind of graininess asphalt modifier with high viscosity and preparation method thereof |
| CN108165035A (en) * | 2018-01-16 | 2018-06-15 | 苏州拓博琳新材料科技有限公司 | A kind of granular color pitch and preparation method thereof |
| CN109777134A (en) * | 2019-01-31 | 2019-05-21 | 武汉市市政建设集团有限公司 | A kind of high-modulus warm-mixed asphalt additive and its preparation method and application |
-
2019
- 2019-12-20 CN CN201911326246.7A patent/CN113004707B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812234A (en) * | 2010-04-16 | 2010-08-25 | 湖南路桥路翔工程有限公司 | Waste rubber powder/waste plastics/SBS composite modified asphalt and preparation method thereof |
| CN105542259A (en) * | 2015-12-24 | 2016-05-04 | 山东阳谷华泰化工股份有限公司 | Flow promoting agent capable of improving processability of styrene-butadiene rubber and preparation method of flow promoting agent |
| CN107118574A (en) * | 2017-01-16 | 2017-09-01 | 深圳市天之泰道路材料有限公司 | A kind of graininess asphalt modifier with high viscosity and preparation method thereof |
| CN108165035A (en) * | 2018-01-16 | 2018-06-15 | 苏州拓博琳新材料科技有限公司 | A kind of granular color pitch and preparation method thereof |
| CN109777134A (en) * | 2019-01-31 | 2019-05-21 | 武汉市市政建设集团有限公司 | A kind of high-modulus warm-mixed asphalt additive and its preparation method and application |
Non-Patent Citations (1)
| Title |
|---|
| 李延猛: ""高性能冷补沥青混合料材料组成与性能评价"", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113004707B (en) | 2022-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101775223B (en) | Additive for drainage asphalt mixture of high temperature heavy load road and preparation method thereof | |
| WO2014129758A1 (en) | Novel highly viscoelastic warm mix modifier composition and preparation method therefor, and new and regenerated warm mix modified asphalt concrete mixture composition and preparation method therefor | |
| CN104194366B (en) | A kind of low-temperature type high-modulus asphalt modifying agent and preparation method thereof | |
| CN101125956B (en) | High viscosity color asphalt cement for laying noise-reducing drainage road surfaces | |
| CN109650781B (en) | Medium-low temperature warm-mixed high-friction thin-layer overlay asphalt mixture and preparation method thereof | |
| KR102119736B1 (en) | Modified-Asphalt Concrete Compositions for Pavement of Roads Using Styrene Isoprene Styrene, Styrene Ethylene Butylene Styrene, Recycling Asphalt and Aggregate-powder of Improved Grain Size and Constructing Methods Using Thereof | |
| CN106380875A (en) | Aging-resistant high-viscosity high-elasticity modified asphalt and preparation method thereof | |
| Shen et al. | Recycling of laboratory-prepared reclaimed asphalt pavement mixtures containing crumb rubber–modified binders in hot-mix asphalt | |
| CN109095828B (en) | Asphalt concrete and production process thereof | |
| CN111018408B (en) | Permanent bituminous paving antiskid wearing and tearing layer | |
| Shaffie et al. | Effect of mixing variables on physical properties of modified bitumen using natural rubber latex | |
| DE3037390A1 (en) | COATING, METHOD FOR ITS PRODUCTION AND ITS PRODUCTION AND USE | |
| Singhal et al. | Use of modified bitumen in highway construction | |
| CN103570279A (en) | Material for rapidly and effectively repairing pits in bituminous pavement and preparation method of material | |
| KR100986718B1 (en) | Modified asphalt composition used in treated fine waste EPDM powder | |
| CN104830075A (en) | Preparation method and use of low noise asphalt pavement cementing material | |
| KR101627553B1 (en) | Reflection crack resistant, low noise, highly durable asphalt mixture and its thin layer surfacing pavement method | |
| CN111635166B (en) | Mix proportion design method for warm-mixed SBS ultrathin wearing layer asphalt mixture | |
| KR102226750B1 (en) | Modifier for recycling asphalt mixture and recycling modified asphalt mixture to which the same added | |
| CN113004707B (en) | Additive for high-viscosity high-elasticity asphalt and preparation method and application thereof | |
| KR102170361B1 (en) | super elasto-plasticity asphalt concrete composition and construction method of using the same | |
| CN108485291A (en) | A kind of chromatic bituminous cement and preparation method thereof | |
| KR100591536B1 (en) | Colored asphalt and colored asphalt concrete using of the same | |
| Shaffie et al. | Investigation on rutting performance of nanopolyacrylate and natural rubber latex polymer modified asphalt binder mixes | |
| CN109554161B (en) | High-viscoelasticity asphalt road adhesive layer oil and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |