CN113817328B - Asphalt anti-stripping agent, preparation method and application thereof - Google Patents
Asphalt anti-stripping agent, preparation method and application thereof Download PDFInfo
- Publication number
- CN113817328B CN113817328B CN202011605374.8A CN202011605374A CN113817328B CN 113817328 B CN113817328 B CN 113817328B CN 202011605374 A CN202011605374 A CN 202011605374A CN 113817328 B CN113817328 B CN 113817328B
- Authority
- CN
- China
- Prior art keywords
- asphalt
- stripping agent
- stripping
- sulfonic acid
- mass
- 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.)
- Active
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 142
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 98
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 15
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims abstract description 14
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 14
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 14
- -1 sulfonic acid compound Chemical class 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 8
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 claims description 15
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 claims description 15
- 239000003921 oil Substances 0.000 claims description 15
- VHLNIHHHIKWTMJ-RSAXXLAASA-M sodium;(2s)-1-dodecoxy-3-oxidosulfonothioyloxypropan-2-ol Chemical compound [Na+].CCCCCCCCCCCCOC[C@H](O)COS([O-])(=O)=S VHLNIHHHIKWTMJ-RSAXXLAASA-M 0.000 claims description 11
- 239000010692 aromatic oil Substances 0.000 claims description 9
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 8
- 230000032683 aging Effects 0.000 abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- 230000007774 longterm Effects 0.000 abstract description 19
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000003973 paint Substances 0.000 abstract 1
- 150000001412 amines Chemical class 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- 239000004575 stone Substances 0.000 description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000013065 commercial product Substances 0.000 description 3
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 3
- 239000010438 granite Substances 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- OJLOUXPPKZRTHK-UHFFFAOYSA-N dodecan-1-ol;sodium Chemical compound [Na].CCCCCCCCCCCCO OJLOUXPPKZRTHK-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 150000003460 sulfonic acids Chemical class 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- RXQOVONNDVGQFZ-UHFFFAOYSA-N C(CCCCCCCCCCC)C(O)C(O)CO.[Na] Chemical compound C(CCCCCCCCCCC)C(O)C(O)CO.[Na] RXQOVONNDVGQFZ-UHFFFAOYSA-N 0.000 description 1
- RZXLPPRPEOUENN-UHFFFAOYSA-N Chlorfenson Chemical compound C1=CC(Cl)=CC=C1OS(=O)(=O)C1=CC=C(Cl)C=C1 RZXLPPRPEOUENN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 239000011044 quartzite Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses an asphalt anti-stripping agent, a preparation method and application thereof. The asphalt anti-stripping agent comprises a sulfonic acid compound, nonylphenol polyoxyethylene ether and rubber oil; the asphalt anti-stripping agent is prepared by adding a sulfonic acid compound, nonylphenol polyoxyethylene ether and rubber oil into a reaction kettle in proportion, and mixing and stirring for 0.5-1h at 60-80 ℃. The asphalt anti-stripping agent has good compatibility with asphalt and is easy to disperse in the asphalt; in addition, the viscosity is low, and the paint is suitable for being used in low-temperature environments in winter; the thermal stability is good, the comprehensive anti-stripping performance is excellent, and the water loss resistance of the mixture after long-term aging can be improved; in addition, the raw materials have wide sources, the preparation method is simple, and the method is suitable for large-scale production.
Description
Technical Field
The invention belongs to the field of road asphalt additives, and particularly relates to an asphalt anti-stripping agent, and a preparation method and application thereof.
Background
The stones for road pavement are classified into acid stones and alkali stones. In general, basic stones such as limestone are poor in wear resistance and cannot meet the requirements of skid resistance and wear resistance of asphalt pavements, and acid aggregate stones such as granite, sandstone and quartzite are hard and good in wear resistance and can meet the requirements of wear resistance and bearing of asphalt pavements. However, the adhesion between the acidic stone and the asphalt showing acidity is poor, and the following problems occur: 1. cannot form enough strength, and 2. Water easily permeates into the pavement to separate asphalt from aggregates, so that the asphalt is peeled off, loosened, caved and the like, and the damage of the pavement is accelerated. The main method for solving the problem at present is to add an anti-stripping agent into the asphalt to improve the adhesion between the asphalt and the aggregate, so that moisture cannot invade into the interface between the asphalt and the aggregate in rainy or freeze-thaw seasons, the damage to the pavement is reduced, and the service life is prolonged.
The asphalt anti-stripping agent begins to be used in 40 years of 20 th century, and the development process of the asphalt anti-stripping agent mainly ranges from inorganic compounds to organic compounds and from low molecular compounds to high molecular compounds. Lime is one of the earliest used anti-stripping agents, is mainly used for treating acid aggregates and has low cost, but because the lime powder particles are very fine, the lime powder particles are difficult to be uniformly dispersed in the mixture, and the popularization and the application of the lime powder particles are restricted to a certain extent. At present, a lot of surfactants are used, the most representative of the surfactants is amine anti-stripping agents, quaternary ammonium salt, aliphatic amine, amido polyamine and imidazoline are used as main components, although the anti-stripping agents can effectively improve the adhesion between asphalt and aggregate, the heat resistance is poor and the cost is high, and in practical application, the long-time high-temperature storage is needed in the process of blending and transporting asphalt mixtures, and the amine anti-stripping agents are decomposed and lose efficacy in the process, so that the anti-stripping performance of the amine anti-stripping agents is influenced. On this basis, researchers developed a series of non-amine asphalt anti-stripping agents. For example, CN200410093217.8 discloses an asphalt anti-stripping agent prepared from sulfonic acid compounds, although the anti-stripping agent is not decomposed by heat and has good adhesion to acidic stone materials. However, the method adopts a boiling method to carry out adhesion experimental determination, and the evaluation method cannot truly represent the adhesion with asphalt and the water loss resistance of the mixture. CN201510644067.3 discloses an asphalt anti-stripping agent, a preparation method and application thereof, wherein the asphalt anti-stripping agent is mainly prepared from materials such as sulfonic acid compounds, and the asphalt anti-stripping agent is subjected to adhesion grade test by adopting a water immersion method, so that the performance of the anti-stripping agent can be more truly represented. However, the invention only researches the adhesion grade and the water damage resistance of the asphalt after short-term aging, and does not research the influence of the anti-stripping agent on the water damage resistance of the mixture after long-term aging. In fact, the water damage problem of the asphalt pavement is influenced by short-term aging of the asphalt and is influenced more by long-term aging in a long-term service process, and the research on the long-term aging resistance of the anti-stripping agent on the asphalt is not much at present. In view of the above, it is important to explore an anti-stripping agent which has good thermal stability, excellent anti-stripping performance, simple preparation and can improve the long-term aging performance of asphalt.
Disclosure of Invention
In order to solve the problems that the asphalt anti-stripping agent in the prior art is poor in thermal stability, complex to prepare, and the water loss resistance of asphalt after long-term aging needs to be improved, the invention provides the asphalt anti-stripping agent which is simple to prepare, excellent in anti-stripping performance, good in thermal stability and capable of improving the long-term aging performance of asphalt, and the preparation method and the application thereof.
In order to solve the problems, the technical scheme of the invention is as follows:
the invention provides an asphalt anti-stripping agent, which comprises the following components in percentage by mass:
15-25wt% of sulfonic acid compound,
10-15wt% of nonylphenol polyoxyethylene ether,
65-75wt% of rubber oil;
the mass percent of the components is 100%.
Preferably, the sulfonic acid compound is a mixture of dodecylbenzene sulfonic acid and sodium lauryl glyceryl ether sulfonate, and the mass ratio of the dodecylbenzene sulfonic acid to the sodium lauryl glyceryl ether sulfonate is 4: 6-6: 4.
preferably, the polyoxyethylene nonyl phenyl ether is selected from any one or a mixture of NP-20, NP-30 and NP-40.
Preferably, the rubber oil has a viscosity of less than 1000cp at 25 ℃ and a congealing point of less than 5 ℃; the rubber oil is aromatic oil or furfural extract oil.
The preparation method of the asphalt anti-stripping agent comprises the following steps: adding the sulfonic acid compound, the nonylphenol polyoxyethylene ether and the rubber oil into a reaction kettle in proportion, and mixing and stirring for 0.5-1h at the temperature of 60-80 ℃.
The application method of the asphalt anti-stripping agent comprises the following steps: heating the asphalt to 135-145 ℃, adding the asphalt anti-stripping agent with the mass of 0.2-0.3 wt% of the asphalt, and mixing and stirring uniformly.
The technical principle of the invention is as follows:
the dodecyl benzene sulfonic acid contains sulfonic group, and can generate chemical adsorption with silicon hydroxyl on the surface of the aggregate to improve the adhesion of the asphalt and the aggregate. The dodecyl benzene sulfonic acid is used independently, so that the stripping resistance is good, but the water loss resistance of the mixture is poor after the asphalt is aged for a long time; the sodium lauryl glyceryl ether sulfonate contains hydroxyl and sulfonic group, can form hydrogen bond and other acting forces with silicon hydroxyl of the aggregate, has good adhesion with the aggregate, and has excellent thermal stability so as to improve the water loss resistance of the asphalt after long-term aging performance; the dodecyl benzene sulfonic acid and the sodium dodecyl glycerol ether sulfonate are compounded for use, so that the synergistic effect can be exerted, and the cost and the water damage resistance before and after aging are both considered.
The polyoxyethylene nonyl phenyl ether contains benzene rings and hydroxyl groups, and has good compatibility with aggregate and asphalt respectively. The composite surfactant serving as a nonionic surfactant is compounded with a sodium lauryl glyceryl ether sulfonate anionic surfactant, so that the surface activity of the anti-stripping agent can be improved, and the interaction between asphalt and aggregate can be enhanced. The polyoxyethylene nonyl phenyl ether has large molecular weight and good heat resistance, and can improve the heat stability and the ageing resistance of the integral anti-stripping agent.
The rubber oil has good compatibility with asphalt, mainly plays a role of a dispersion medium, can reduce the cost of the anti-stripping agent, and ensures that all anti-stripping agent components are uniformly dispersed. In addition, the rubber oil has requirements on the viscosity and the condensation point of the rubber oil, can ensure that the anti-stripping agent has good fluidity in a low-temperature environment in winter, and does not influence normal use.
The invention has the beneficial effects that:
(1) The asphalt anti-stripping agent belongs to non-amines, and has good thermal stability. In addition, the raw materials are wide in source, the preparation method is simple, and the method is suitable for large-scale production.
(2) The asphalt anti-stripping agent has good compatibility with asphalt and is easy to disperse in the asphalt. In addition, the viscosity is low, and the coating is suitable for being used in low-temperature environments in winter.
(3) The asphalt anti-stripping agent of the invention has low mixing amount and excellent comprehensive anti-stripping performance. After the asphalt is uniformly mixed with road hot asphalt, the adhesion between the asphalt and acidic aggregate can be effectively improved, and the anti-stripping capability is improved. The adhesion grade is 5 grade after short-term and long-term aging by adopting a water immersion method.
(4) The asphalt anti-stripping agent can improve the water loss resistance of the mixture after long-term aging. The water loss resistance of the mixture after long-term aging is superior to that of the traditional amine anti-stripping agent, the service life of the asphalt pavement can be prolonged, and the maintenance cost is reduced.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples. The present invention includes various alterations and modifications made by those skilled in the art based on the above technical ideas and conventional means, and is intended to be included in the scope of the present invention.
Example 1
Adding 7.5 parts by mass of dodecylbenzene sulfonic acid, 7.5 parts by mass of sodium lauryl glyceryl ether sulfonate, 15 parts by mass of nonylphenol polyoxyethylene ether NP-40 and 70 parts by mass of aromatic oil into a reaction kettle at 80 ℃, and stirring for 1 hour to prepare the asphalt anti-stripping agent.
Heating asphalt to 135 ℃, adding 0.3wt% of the asphalt anti-stripping agent, and stirring for 1h to obtain the modified asphalt 1.
Example 2
Simultaneously adding 10 parts by mass of dodecylbenzene sulfonic acid, 10 parts by mass of sodium lauryl alcohol glyceryl ether sulfonate, 15 parts by mass of nonylphenol polyoxyethylene ether NP-30 and 65 parts by mass of furfural extract oil into a reaction kettle at 60 ℃, and stirring for 0.5h to prepare the asphalt anti-stripping agent.
Heating the asphalt to 145 ℃, adding 0.2wt% of the asphalt anti-stripping agent, and stirring for 0.5h to obtain the modified asphalt 2.
Example 3
Simultaneously adding 10 parts by mass of dodecylbenzene sulfonic acid, 15 parts by mass of sodium lauryl glyceryl ether sulfonate, 10 parts by mass of nonylphenol polyoxyethylene ether NP-20 and 65 parts by mass of aromatic oil into a reaction kettle at the temperature of 80 ℃, and stirring for 1 hour to prepare the asphalt anti-stripping agent.
Heating the asphalt to 140 ℃, adding 0.2wt% of the asphalt anti-stripping agent, and stirring for 1h to obtain the modified asphalt 3.
Example 4
Simultaneously adding 12 parts by mass of dodecylbenzene sulfonic acid, 8 parts by mass of sodium lauryl alcohol glyceryl ether sulfonate, 10 parts by mass of nonylphenol polyoxyethylene ether NP-30 and 70 parts by mass of furfural extract oil into a reaction kettle at 70 ℃, and stirring for 0.5h to prepare the asphalt anti-stripping agent.
Heating the asphalt to 130 ℃, adding 0.3wt% of the asphalt anti-stripping agent, and uniformly mixing to obtain the modified asphalt 4.
Example 5
Adding 12.5 parts by mass of dodecylbenzene sulfonic acid, 12.5 parts by mass of sodium lauryl glyceryl ether sulfonate, 5 parts by mass of nonylphenol polyoxyethylene ether NP-20, 5 parts by mass of nonylphenol polyoxyethylene ether NP-40 and 65 parts by mass of aromatic oil into a reaction kettle at the temperature of 80 ℃, and stirring for 1 hour to prepare the asphalt anti-stripping agent.
Heating asphalt to 135 ℃, adding 0.25wt% of the asphalt anti-stripping agent, and stirring for 1h to obtain the modified asphalt 5.
Example 6
Simultaneously adding 6 parts by mass of dodecylbenzene sulfonic acid, 9 parts by mass of sodium dodecyl alcohol glyceryl ether sulfonate, 10 parts by mass of nonylphenol polyoxyethylene ether NP-20 and 75 parts by mass of aromatic oil into a 65 ℃ reaction kettle, and stirring for 0.5h to prepare the asphalt anti-stripping agent.
Heating asphalt to 135 ℃, adding 0.3wt% of the asphalt anti-stripping agent, and stirring for 1h to obtain the modified asphalt 6.
Comparative example
Heating the asphalt to 145 ℃, adding 0.3wt% of a commercial amine asphalt anti-stripping agent (PA-1 amine anti-stripping agent, seisan Highway research institute), and stirring for 1h to obtain the modified asphalt 7.
Heating asphalt to 145 deg.C, adding 0.3wt% of commercial non-amine asphalt anti-stripping agent (AMR type non-amine anti-stripping agent, ratty traffic science and technology Co., ltd., sichuan), and stirring for 1 hr to obtain modified asphalt 8.
Comparative example 3
Adding 15 parts by mass of dodecylbenzene sulfonic acid, 15 parts by mass of nonylphenol polyoxyethylene ether NP-40 and 70 parts by mass of aromatic oil into a reaction kettle at 80 ℃, and stirring for 1 hour to prepare the asphalt anti-stripping agent.
Heating asphalt to 135 ℃, adding 0.3wt% of the asphalt anti-stripping agent, and stirring for 1h to obtain the modified asphalt 9.
Comparative example 4
Adding 7.5 parts by mass of dodecylbenzene sulfonic acid, 7.5 parts by mass of sodium lauryl glyceryl ether sulfonate and 85 parts by mass of aromatic oil into a reaction kettle at 80 ℃, and stirring for 1 hour to prepare the asphalt anti-stripping agent.
Heating asphalt to 135 ℃, adding 0.3wt% of the asphalt anti-stripping agent, and stirring for 1h to obtain the modified asphalt 10.
Comparative example 5
Adding 25 parts by mass of sodium lauryl glyceryl ether sulfonate and 75 parts by mass of aromatic oil into a reaction kettle at the temperature of 80 ℃, and stirring for 1 hour to prepare the asphalt anti-stripping agent.
Heating asphalt to 135 ℃, adding 0.3wt% of the asphalt anti-stripping agent, and stirring for 1h to obtain the modified asphalt 11.
Aging treatment of asphalt, asphalt adhesion and water loss resistance test of the mixture:
different asphalt anti-stripping agents are adopted to evaluate the performance of the anti-stripping agent from two aspects of the adhesion performance of asphalt and mineral aggregate and the water loss resistance of asphalt mixture.
The asphalt is placed in a film oven to simulate short-term aging treatment, and the asphalt is placed in an asphalt pressure aging device to simulate long-term aging. Adhesion tests were carried out using granite by a water immersion method on the asphalt prepared in the above examples and comparative examples before and after aging, to which the anti-peeling agent of the present invention and the comparative anti-peeling agent were added, respectively; granite is used, asphalt mixture is prepared by adopting AC20 gradation and asphalt before and after aging added with different anti-stripping agents, and the residual stability of a Marshall test piece and the water loss resistance indexes of the two asphalt mixtures by freeze thawing and splitting are evaluated.
TABLE 1 asphalt adhesion test results prepared with anti-stripping agent of the present invention
Table 2 comparative example anti-stripping agent preparation asphalt adhesion test results
As can be seen from the test results in Table 1, the adhesion of the asphalt is significantly improved by adding the asphalt anti-stripping agents of examples 1 to 6, and the adhesion can be improved from grade 2 to grade 5. In addition, the aging resistance is obviously improved, the adhesion grade is improved from grade 1 to grade 5 after short-term aging, and the adhesion grade is also improved from grade 1 to grade 5 after long-term aging. The change rule of the adhesion grade before and after the anti-stripping agent is aged can also show that the anti-stripping agent prepared by the invention has good thermal stability.
Table 2 shows the adhesion results of the comparative example antistripping agents, and the results show that the adhesion grades of the commercially available amine antistripping agents and non-amine antistripping agents are remarkably reduced after short-term aging and long-term aging. Comparative examples 3-5 have an increased resistance to aging compared to commercially available antistripping agents, but the adhesion rating after long-term aging has decreased from 5 to 3-4 compared to the antistripping agent of the present invention. Therefore, the anti-stripping agent has a better adhesion grade than that of the commercial amine anti-stripping agent and non-amine anti-stripping agent, and has excellent anti-stripping performance. It can be seen from comparative examples 3 to 5 that, within the range of the components of the antistripping agent of the present invention, the components exert synergistic effects and the antistripping agent prepared has the best antistripping properties.
The results of the Marshall residual stability and freeze-thaw split strength comparative tests of asphalt mixtures were performed on asphalts to which the anti-stripping agents of examples 1-7 were added according to the test Specification for road engineering asphalt and asphalt mixtures (JTG E-2011) and are shown in Table 3.
TABLE 3 asphalt mixture test results
From the test results in table 3, it can be seen that the indexes of the residual stability and the freeze-thaw cleavage strength ratio of the mixture prepared before asphalt aging, after asphalt aging in a short period and after asphalt aging in a long period are obviously increased after the anti-stripping agent of the embodiments 1 to 6 is added, compared with the indexes without the anti-stripping agent. Compared with the results of the commercial amine anti-stripping agent, the commercial non-amine anti-stripping agent and the comparative example, the water loss resistance of the invention before aging is not much different from that of the commercial product and the comparative example, but the water loss resistance of the invention after short-term aging is better than that of the commercial product and the comparative example, and the water loss resistance of the invention after long-term aging is far better than that of the commercial product and the comparative example (the freeze-thaw splitting result of the invention is still more than 80%). The results show that the anti-stripping agent prepared by the invention has excellent water damage resistance, and can improve the water damage resistance of asphalt after long-term aging.
In conclusion, the non-amine asphalt anti-stripping agent prepared by the invention has good thermal stability, low mixing amount and excellent comprehensive anti-stripping performance. In addition, the raw materials are easy to obtain, the preparation is simple, and the method is suitable for large-scale production. After the asphalt is uniformly mixed with road hot asphalt, the adhesion between the asphalt and acidic aggregate can be effectively improved, the anti-stripping capability is improved, and the adhesion grade is 5 grade before and after aging. Particularly, after the asphalt is aged for a long time, compared with other technologies, the invention can improve the water damage resistance of the asphalt pavement, and the ratio of the residual stability and the freeze-thaw splitting strength is far higher than that of other technologies. Therefore, the anti-stripping agent prepared by the invention has excellent comprehensive performance, still has good water loss resistance after the service of the pavement and the long-term aging of the asphalt, and can effectively prolong the service life of the asphalt pavement.
Claims (6)
1. The asphalt anti-stripping agent is characterized by comprising the following components in percentage by mass:
15-25wt% of sulfonic acid compound,
10-15wt% of polyoxyethylene nonyl phenyl ether,
65-75wt% of rubber oil;
the mass percent of the components is 100%;
the sulfonic acid compound is a mixture of dodecyl benzene sulfonic acid and sodium lauryl glyceryl ether sulfonate, and the mass ratio of the dodecyl benzene sulfonic acid to the sodium lauryl glyceryl ether sulfonate is 4: 6-6: 4.
2. the asphalt anti-stripping agent as defined in claim 1, wherein said nonylphenol polyoxyethylene ether is selected from NP-20, NP-30 and NP-40.
3. An asphalt anti-stripping agent as claimed in claim 1, wherein the rubber oil has a viscosity of less than 1000cp at 25 ℃ and a congealing point of less than 5 ℃.
4. The asphalt anti-stripping agent as defined in claim 3, wherein said rubber oil is aromatic oil or furfural extract oil.
5. The method of any one of claims 1 to 4 for preparing an asphalt anti-stripping agent, comprising: adding the sulfonic acid compound, the nonylphenol polyoxyethylene ether and the rubber oil into a reaction kettle in proportion, and mixing and stirring for 0.5-1h at the temperature of 60-80 ℃.
6. The use of an asphalt anti-stripping agent as defined in any one of claims 1 to 4, wherein the asphalt is heated to 135-145 ℃, and the asphalt anti-stripping agent is added in an amount of 0.2-0.3 wt% based on the mass of the asphalt, and the mixture is mixed and stirred uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605374.8A CN113817328B (en) | 2020-12-30 | 2020-12-30 | Asphalt anti-stripping agent, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605374.8A CN113817328B (en) | 2020-12-30 | 2020-12-30 | Asphalt anti-stripping agent, preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113817328A CN113817328A (en) | 2021-12-21 |
| CN113817328B true CN113817328B (en) | 2023-03-14 |
Family
ID=78924897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011605374.8A Active CN113817328B (en) | 2020-12-30 | 2020-12-30 | Asphalt anti-stripping agent, preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113817328B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009150369A2 (en) * | 2008-05-21 | 2009-12-17 | Ceca Sa | Additives for bituminous products |
| CN105001653A (en) * | 2014-04-23 | 2015-10-28 | 中国石油化工股份有限公司 | Fog seal maintenance material, and preparation method and use thereof |
| CN107353807A (en) * | 2017-06-23 | 2017-11-17 | 天长市巨龙车船涂料有限公司 | A kind of abrasion resistant polyurethane acrylic ester aquosity coating |
| CN107603252A (en) * | 2017-10-24 | 2018-01-19 | 内蒙古综合交通科学研究院有限责任公司 | Cost of New Type Asphalt Pavement regeneration regenerative agent and preparation method thereof |
| CN110885634A (en) * | 2019-10-14 | 2020-03-17 | 中交一公局集团有限公司 | Asphalt-based material and preparation method thereof |
| CN111218082A (en) * | 2020-02-28 | 2020-06-02 | 江苏凯信环保材料有限公司 | Carbon-based composite anti-aging modifier suitable for asphalt and preparation method thereof |
-
2020
- 2020-12-30 CN CN202011605374.8A patent/CN113817328B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009150369A2 (en) * | 2008-05-21 | 2009-12-17 | Ceca Sa | Additives for bituminous products |
| CN105001653A (en) * | 2014-04-23 | 2015-10-28 | 中国石油化工股份有限公司 | Fog seal maintenance material, and preparation method and use thereof |
| CN107353807A (en) * | 2017-06-23 | 2017-11-17 | 天长市巨龙车船涂料有限公司 | A kind of abrasion resistant polyurethane acrylic ester aquosity coating |
| CN107603252A (en) * | 2017-10-24 | 2018-01-19 | 内蒙古综合交通科学研究院有限责任公司 | Cost of New Type Asphalt Pavement regeneration regenerative agent and preparation method thereof |
| CN110885634A (en) * | 2019-10-14 | 2020-03-17 | 中交一公局集团有限公司 | Asphalt-based material and preparation method thereof |
| CN111218082A (en) * | 2020-02-28 | 2020-06-02 | 江苏凯信环保材料有限公司 | Carbon-based composite anti-aging modifier suitable for asphalt and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113817328A (en) | 2021-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103059593B (en) | Diatomite compound SBS (Styrene Butadiene Styrene) modified asphalt and preparation method thereof | |
| CN111286207A (en) | Modified asphalt composition for warm-mix thin-layer overlay and preparation method thereof | |
| CN101585952A (en) | Color emulsified asphalt and preparation method thereof | |
| CN103113044B (en) | High-modulus bituminous mixture admixed with waste material, preparation method and method for preparing mixture specimen | |
| CN106675055B (en) | Asphalt warm-mixing modifier and preparation method thereof | |
| CN103242666B (en) | Warm mix asphalt additive and preparation method thereof | |
| CN108822563B (en) | A kind of Karamay asphalt dry modifier and its application | |
| US12098101B2 (en) | Micro-surfacing sealing coat mixture and preparation method thereof | |
| CN105385179B (en) | Waste sole rubber powder modified asphalt and preparation method thereof | |
| CN101205371A (en) | Chromatic bituminous cement improving workability | |
| CN105368084A (en) | Modified pitch and preparation method thereof | |
| CN102816448B (en) | Warm-mixing heavy traffic asphalt and preparation method thereof | |
| CN112852176B (en) | High-modulus asphalt and preparation method thereof | |
| CN115044099B (en) | Two-dimensional asphalt warm mix agent suitable for ultralow-temperature construction of hot mix asphalt mixture, warm mix asphalt and preparation method thereof | |
| CN103360773B (en) | A kind of composite asphalt modifier and preparation method thereof and application | |
| CN113817328B (en) | Asphalt anti-stripping agent, preparation method and application thereof | |
| CN102504553A (en) | Warm-mix modified asphalt and method for preparing asphalt mixture by using same | |
| CN114716835B (en) | High-performance asphalt warm mix agent and preparation method and application thereof | |
| CN108610529B (en) | Water-soluble graphene modified colored emulsified asphalt and preparation method thereof | |
| CN111019362A (en) | Warm mixing agent for asphalt mixture, preparation method and application | |
| CN111072311A (en) | Modifier for improving anti-rutting performance of asphalt concrete and preparation method thereof | |
| CN101629021B (en) | High-quality pavement petroleum asphalt material and preparation method thereof | |
| CN112608072B (en) | Asphalt mixture capable of automatically adjusting temperature diseases and preparation method thereof | |
| CN113698138A (en) | high-RAP-content regeneration mixture and preparation method and application thereof | |
| CN105131623B (en) | A kind of asphalt anti-stripping agent, preparation method and application |
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 |