CN113817328A - Asphalt anti-stripping agent, preparation method and application thereof - Google Patents
Asphalt anti-stripping agent, preparation method and application thereof Download PDFInfo
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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. Under normal conditions, basic stones such as limestone and the like have poor wear resistance and cannot meet the requirements of an asphalt pavement on skid resistance and wear resistance, and acid aggregate stones such as granite, sandstone and quartzite are hard and have good wear resistance and can meet the requirements of the asphalt pavement on wear resistance and bearing. 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 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 limited 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 damage resistance of the mixture. CN201510644067.3 discloses an asphalt anti-stripping agent, a preparation method and application thereof, which are mainly prepared from materials such as sulfonic acid compounds, and the like. However, the invention only researches the adhesion grade and the water loss resistance of the asphalt after short-term aging, and does not research the influence of the anti-stripping agent on the water loss 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 and 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:
15-25 wt% of sulfonic acid compound,
10-15 wt% of polyoxyethylene nonyl phenyl ether,
65-75 wt% 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 perform 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 lauryl glyceryl 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 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 have wide sources, 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 0.3 wt% 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 0.2 wt% 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 0.2 wt% 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 0.3 wt% 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 0.25 wt% 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 0.3 wt% of the asphalt anti-stripping agent, and stirring for 1h to obtain the modified asphalt 6.
Comparative example
Heating the asphalt to 145 ℃, adding 0.3 wt% 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 0.3 wt% 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 0.3 wt% 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 0.3 wt% 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 0.3 wt% 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 Marshall test pieces and the water loss resistance indexes of the two asphalt mixtures by freeze-thaw splitting are evaluated.
TABLE 1 asphalt prepared with anti-stripping agent of the invention adhesion test results
Table 2 comparative example anti-stripping agent preparation asphalt adhesion test results
As is clear from the test results in Table 1, the asphalt adhesion was remarkably improved from grade 2 to grade 5 by adding the asphalt anti-stripping agents of examples 1 to 6. 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 obviously better adhesion grade than the commercial amine anti-stripping agent and non-amine anti-stripping agent and 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 loss resistance, and can improve the water loss 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 (7)
1. The asphalt anti-stripping agent is characterized by comprising the following components in percentage by mass:
15-25 wt% of sulfonic acid compound,
10-15 wt% of polyoxyethylene nonyl phenyl ether,
65-75 wt% of rubber oil;
the mass percent of the components is 100%.
2. The asphalt anti-stripping agent as claimed in claim 1, wherein 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.
3. 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.
4. 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 ℃.
5. The asphalt anti-stripping agent as defined in claim 4, wherein said rubber oil is aromatic oil or furfural extract oil.
6. The method of any one of claims 1 to 5, 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 ℃.
7. The method for using the asphalt anti-stripping agent as defined in any one of claims 1 to 5, wherein the asphalt is heated to 135-145 ℃, 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.
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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 |
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