CN113308125B

CN113308125B - Diluted asphalt modifier and preparation method thereof

Info

Publication number: CN113308125B
Application number: CN202110672155.XA
Authority: CN
Inventors: 索智; 杨胜; 季节; 金珊珊; 朱赫; 雷青; 王昭勇; 张亚
Original assignee: Tongren Highway Administration Bureau Of Guizhou Province; Beijing University of Civil Engineering and Architecture
Current assignee: Tongren Highway Administration Bureau Of Guizhou Province; Beijing University of Civil Engineering and Architecture
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-05-20
Anticipated expiration: 2041-06-17
Also published as: CN113308125A

Abstract

The invention discloses a diluted asphalt modifier, which is prepared by compounding a viscosity-reducing asphalt modifier and a solidified asphalt modifier, wherein the solidified asphalt modifier is prepared by compounding a solidified component and a catalytic component. The invention also discloses a preparation method of the diluted asphalt modifier, which comprises the following steps in sequence: weighing a certain amount of viscosity-reducing asphalt modifier, curing component and catalytic component according to requirements for later use; adding 50-70% of catalytic component into the curing component, uniformly mixing and standing; continuously adding the rest of the catalytic component into the curing component, uniformly mixing, and standing to form a cured asphalt modifier; adding the solidified asphalt modifier into the viscosity-reducing asphalt modifier, uniformly mixing, and standing to form the diluted asphalt modifier. The diluted asphalt modifier can greatly reduce the content of the diluent and improve the solid content of asphalt.

Description

Diluted asphalt modifier and preparation method thereof

Technical Field

The invention belongs to the technical field of asphalt roads and environmental engineering, and particularly relates to a diluted asphalt modifier and a preparation method thereof.

Background

In recent years, the exploitation of petroleum resources in China is tense and has great destructive power to the environment. The method carries out scientific development, gets rid of the production mode with high energy consumption and high pollution, and is a basic requirement for long-term planning, energy conservation and emission reduction in national science and technology development by taking the way of resource conservation and environment-friendly development.

The traffic industry is resource occupation type and energy consumption type. The hot-mixed asphalt mixture HMA (Hot Mix asphalt) for the asphalt pavement is prepared by heating asphalt from normal temperature to about 160 ℃, heating mineral aggregate from normal temperature to 180 ℃, then mixing the asphalt and the mineral aggregate, wherein the HMA temperature after mixing is 150-180 ℃, so as to ensure normal paving and rolling. However, heating bitumen and mineral aggregates to such high temperatures not only consumes a large amount of energy, but also during the mixing production and construction process, HMA emits a large amount of waste gas and heat, which seriously affects the quality of the surrounding environment.

The cold-mixing and cold-paving asphalt mixture is a novel asphalt pavement material, and does not need to heat, pave and roll the mineral aggregate and the asphalt at high temperature like the hot-mixing asphalt mixture. Therefore, the method has the outstanding advantages of energy conservation, convenient storage and transportation, convenient construction, prolonged construction season, capability of utilizing the existing equipment for production and construction and the like.

The research on the cold-mix asphalt mixture in China starts late, in recent years, many foreign enterprises see the wide market of China and devote to promotion of the cold-mix cold-spread materials of the foreign enterprises, but the price of the cold-mix cold-spread materials is high, and the cold-mix cold-spread materials are difficult to bear by users and cannot be used in large quantities in engineering; in addition, even if the production technology can be purchased at a high price, due to differences in climatic characteristics, aggregate characteristics, and the like, the selection and gradation of the aggregate, the selection and usage of the mineral powder, the selection and usage of the asphalt, and the preparation and usage of the additive cannot completely follow the foreign production experience when the mixture is prepared.

The invention patent with application publication number CN112679145A discloses a normal-temperature asphalt modifier, which comprises a normal-temperature asphalt liquefier and a normal-temperature asphalt curing agent, wherein the normal-temperature asphalt liquefier comprises the following raw materials in parts by weight: 60-80 parts of vegetable oil residue extract, 1-8 parts of waste rubber powder, 4-16 parts of coconut oil fatty acid potassium and 8-17 parts of waterborne polyurethane, wherein the normal-temperature asphalt curing agent comprises the following raw materials in parts by weight: 1-2 parts of grafted macromolecular water-absorbing resin and 1-6 parts of calcium hydroxide. Although the normal temperature asphalt modifier can reduce environmental pollution, the pavement performance of the finally formed mixture is low.

The invention patent with application publication number CN112409805A discloses SBR modified asphalt, which comprises the following preparation raw materials in parts by weight: 50-100 parts of matrix asphalt, 1-5 parts of SBS asphalt modifier, 1-5 parts of SBR asphalt modifier, 0.5-10 parts of cosolvent, 0.1-1 part of attapulgite and 0.1-1 part of stabilizer, wherein a certain amount of attapulgite is added into SBR modified asphalt so that the modified asphalt has good ultraviolet radiation resistance. In the technical scheme, the conventional SBS asphalt modifier and the SBR asphalt modifier are used, and only physical reaction occurs between raw materials by adopting the two modifiers, so that the road performance of the finally obtained mixture is low.

Therefore, from the technical and economic points of view, aiming at the characteristics of China, the development of a diluted asphalt modifier suitable for preparing cold-mixing cold-paving asphalt and asphalt mixture is urgently needed.

Disclosure of Invention

In the prior art, a hot-mix asphalt mixture is generally adopted to pave an asphalt pavement, but the heating temperature in the hot-mix process is generally 160-. In order to reduce unnecessary natural resource consumption and environmental pollution problems at high temperature, the asphalt pavement needs to be paved by a cold-mixing cold-paving mode, but compared with a hot-mixing process, the cold-mixing cold-paving mode has the problem of low pavement performance. In order to solve the problem of low road performance of the material in a cold mixing and cold paving mode, the invention develops the diluted asphalt modifier, and fundamentally changes the problem of low material performance. The asphalt cutback modifier of the present invention is unique in both composition and process, and compared to the prior art physical asphalt modifiers for cold mix cold paving, the asphalt cutback modifier of the present invention undergoes a chemical reaction during the formation process.

The diluted asphalt modifier is the key for improving the road performance of the material, is added into the matrix asphalt to form diluted asphalt, and then is used as cementing material to pave the road, so that the energy consumption can be saved, the environmental pollution can be reduced, the road performance of the material can completely meet the road use requirement, and even can meet the road performance requirement of the hot-mix asphalt mixture.

In order to solve the problems in the prior art, the invention provides a diluted asphalt modifier which is a composite material, wherein the diluted asphalt modifier is formed by compounding a viscosity-reducing asphalt modifier and a solidified asphalt modifier, and the solidified asphalt modifier is formed by compounding a solidified component and a catalytic component.

Preferably, the viscosity-reducing asphalt modifier comprises one or more of diesel oil, kerosene, gasoline and aviation kerosene. The substances can improve the mixing property of the materials, effectively reduce the mixing temperature of the asphalt and also effectively reduce the viscosity of the asphalt in a low-temperature state. The viscosity-reducing asphalt modifier is compounded with the solidified asphalt modifier to form the diluted asphalt modifier, and then the diluted asphalt modifier is compounded with the matrix asphalt to form the diluted asphalt, so that the produced material does not influence various performances and normal use functions of roads, and the viscosity-reducing effect is fully realized.

In any of the above schemes, preferably, the curing component includes one or more of epoxidized soybean oil acrylate, castor oil-based polyurethane acrylate, cardanol-based polyurethane acrylate, tung oil-based polyurethane acrylate resin, maleated epoxidized soybean oil acrylate, epoxidized soybean oil itaconate, and cyclopentadienylated linseed oil. The selected substances have certain compatibility with the asphalt because the substances consist of a plurality of fatty acid glyceride, the long unsaturated fatty chain has certain compatibility with saturated components in the asphalt, and the miscibility of the substances with the oil components in the asphalt can effectively improve the performance of the asphalt to a certain extent.

In any of the above embodiments, preferably, the catalytic component comprises one or more of 2-hydroxy-2-methyl-1-phenyl-1-propanone, phenylbis (2, 4, 6-trimethylbenzoyl) phosphine oxide, 1-hydroxy-cyclohexylbenzophenone (184), (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-methyl-1- (4-methylthiophenyl) -2-morpholino-1-propanone, and 2-isopropylthia-nthraquinone. The catalytic component is a substance that cures the curing component under illumination. In natural environment, substances which can absorb ultraviolet light and are easy to be photo-cured can be used as the catalytic component of the invention. The catalytic component of the invention can absorb ultraviolet light and carry out chemical reaction to generate active free radicals or active ion groups. One class of initiating species may initiate polymerization for monomers containing unsaturated groups. The catalytic component is an indispensable important part in any ultraviolet curing system, and although the curing component can also generate polymerization reaction under the irradiation of ultraviolet light, the addition of the catalytic component is avoided, the photopolymerization speed is too slow, the effect is poor, and the requirements of actual production cannot be met.

In any of the above embodiments, the diluted asphalt modifier preferably comprises, by mass, 82-96% of the viscosity-reducing asphalt modifier and 4-18% of the solidified asphalt modifier. A large number of tests prove that when the viscosity-reducing asphalt modifier and the solidified asphalt modifier are prepared according to the mass percentage, the obtained diluted asphalt modifier has the best effect, the diluted asphalt obtained by adding the viscosity-reducing asphalt modifier and the solidified asphalt modifier into the matrix asphalt can effectively reduce the mixing viscosity and the mixing temperature of the asphalt, and the formed strength after solidification has a good effect. The viscosity-reducing asphalt modifier, the curing component and the catalytic component are compounded, so that the various performances and normal use functions of a road are not influenced, and the cold-mixing and cold-paving functions are fully realized.

In any of the above embodiments, the mass percentage of each component in the solidified asphalt modifier is 33-56% of the solidified component and 44-67% of the catalytic component.

When the content of the curing component accounts for 33-56% of the mass percent of the curing asphalt modifier, the penetration degree and the ductility of the asphalt can be greatly improved, and the softening point of the asphalt is obviously reduced, so that the viscosity of the asphalt is greatly reduced, and the workability is improved, which shows that the curing component and the asphalt have compatibility. When the content of the curing component is less than 33% and/or more than 56%, the curing component is no longer compatible with the asphalt, and significant precipitation of particles occurs. A large number of tests prove that the content of the curing component accounting for 33-56% of the mass of the cured asphalt modifier is the optimal value, the curing component has excellent compatibility with asphalt within the range, can be well crosslinked and cured with other components, improves the adhesion of materials, effectively prevents mineral aggregate from stripping and falling off, and avoids road cracking.

When the content of the catalytic component accounts for 44-67% of the mass of the cured asphalt modifier, the ultraviolet light can be better absorbed, a chemical reaction can be carried out, active free radicals or active ionic groups can be generated, and the catalytic component can be better compounded with the cured component.

More preferably, at least two of the curing component and the catalyzing component are selected.

The optimal proportion of the curing components is as follows: the addition amount of the epoxy soybean oil acrylate is 1.8-2.1 times of that of the castor oil-based polyurethane acrylate; the addition amount of the epoxy soybean oil itaconate is 1.6-2.0 times of that of the cyclopentadienized linseed oil; the proportion of the maleated epoxy soybean oil acrylate, the cardanol-based polyurethane acrylate and the tung oil-based polyurethane acrylate resin is 1: 1.3: 0.8.

the optimal proportion of the catalytic components is as follows: the mixture ratio of 2-hydroxy-2-methyl-1-phenyl-1-acetone, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide and 1-hydroxy-cyclohexyl benzophenone (184) is 1: 0.8: 1.4; the mixture ratio of (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone, and 2-isopropyl thia-thermo-ketone is 1: 1.4: 2.1.

the diluted asphalt modifier belongs to a solvent type (diluted) asphalt modifier, can greatly reduce the content of the diluent and improve the solid content of asphalt; compared with the physical modifier, the modifier of the invention belongs to a chemical modifier and is applied to road engineering for the first time; the vegetable oil is used as a natural renewable material, and the derivative of the vegetable oil has higher innovation and economy when being applied to road engineering; for the first time, materials in the field of coatings are introduced into the field of road engineering.

The invention also provides a preparation method of the diluted asphalt modifier, which comprises the following steps in sequence:

the method comprises the following steps: weighing a certain amount of viscosity-reducing asphalt modifier, curing component and catalytic component according to requirements for later use;

step two: adding 50-70% of catalytic component into the curing component, uniformly mixing and standing;

step three: continuously adding the rest of the catalytic component into the curing component, uniformly mixing, and standing to form a cured asphalt modifier;

step four: adding the solidified asphalt modifier into the viscosity-reducing asphalt modifier, uniformly mixing, and standing to form the diluted asphalt modifier.

Preferably, in the step one, the weighed viscosity-reducing asphalt modifier accounts for 82-96% by mass of the diluted asphalt modifier to be prepared, and the total amount of the weighed curing component and the weighed catalytic component accounts for 4-18% by mass of the diluted asphalt modifier to be prepared.

In any of the above schemes, preferably, in the step one, the weighed curing component accounts for 33-56% by mass of the cured asphalt modifier to be prepared, and the weighed catalytic component accounts for 44-67% by mass of the cured asphalt modifier to be prepared.

In any scheme, preferably, in the second step, the stirring temperature is 5-10 ℃, the stirring time is 5-20min, and the standing time is 5-8 min; in the third step, the mixing temperature is 8-10 ℃, the mixing time is 5-10min, and the standing time is 5-8 min; in the fourth step, the mixing temperature is 10-15 ℃, the mixing time is 5-20min, and the standing time is 5-10 min. The stirring method is shear stirring, and the stirring speed is 1500-.

In the preparation method of the diluted asphalt modifier, the sequence of the step two and the step three and the addition amount of substances in each step are critical, 50-70% of catalytic components and curing components are compounded firstly, and after reacting for a certain time, the catalytic components are continuously added into the compound for further reaction and compounding so as to achieve the effect of full compounding.

The diluted asphalt modifier can be directly used as one of the components of road building materials, is added into the matrix asphalt to prepare diluted asphalt, and then the diluted asphalt is used as cementing material to pave the road. The preparation method is simple, the preparation temperature is low, the time is short, no pollution is caused, and the cost performance is high.

The invention also provides diluted asphalt which is a composite material and is formed by compounding the matrix asphalt and any one of the diluted asphalt modifiers. The diluted asphalt modifier is formed by compounding a viscosity-reducing asphalt modifier and a solidified asphalt modifier, and the solidified asphalt modifier is formed by compounding a solidified component and a catalytic component. The viscosity-reducing asphalt modifier, the curing component and the catalytic component are respectively one or more of the corresponding substances.

The mass percentage of each component in the diluted asphalt is 70-90% of matrix asphalt and 10-30% of diluted asphalt modifier. The diluted asphalt modifier comprises 82-96% of viscosity-reducing asphalt modifier and 4-18% of solidified asphalt modifier by mass percent; the solidified asphalt modifier comprises 33-56% of solidified components and 44-67% of catalytic components by mass percent.

More preferably, the base asphalt is replaced with SBS asphalt. The diluted asphalt is prepared by compounding SBS asphalt and a diluted asphalt modifier, and then the diluted asphalt is added into mineral aggregate, so that the pavement performance of the prepared mixture is improved by at least 18 percent compared with the pavement performance of the mixture prepared by a hot-mixing process. A large number of tests prove that the components and the process parameters achieve the optimal matching degree, the SBS asphalt is only required to be replaced by the matrix asphalt, and other components and process parameters are not changed.

The diluted asphalt provided by the invention is non-corrosive, low in raw material price, easy to obtain, and has good effects of reducing asphalt mixing viscosity and mixing temperature, and has important economic and social meanings.

The preparation method of the diluted asphalt comprises the following steps in sequence:

the method comprises the following steps: weighing a certain amount of matrix asphalt and diluted asphalt modifier according to requirements for later use;

step two: adding part of the diluted asphalt modifier into the matrix asphalt, uniformly mixing and standing;

step three: and continuously adding the rest of the diluted asphalt modifier into the base asphalt, uniformly mixing, and standing to form the diluted asphalt.

In the second step, the mass of the added diluted asphalt modifier is 50-80%. In the second step, the mixing temperature is 90-150 ℃, the mixing time is 5-20min, and the standing time is 5-10 min; in the third step, the mixing temperature is 100-. The stirring method is shear stirring, and the stirring speed is 1500-.

The key of the preparation method of the diluted asphalt is the second step and the third step, and the diluted asphalt modifier needs to be added into the matrix asphalt in batches, so that the curing component and the catalytic component in the diluted asphalt modifier fully perform chemical reaction, and the comprehensive performance of the diluted asphalt is improved.

The invention also provides a diluted asphalt mixture which is a composite material and is formed by compounding mineral aggregate and any diluted asphalt; the diluted asphalt is compounded by matrix asphalt and any one of the diluted asphalt modifiers. The diluted asphalt modifier is formed by compounding a viscosity-reducing asphalt modifier and a solidified asphalt modifier, and the solidified asphalt modifier is formed by compounding a solidified component and a catalytic component. The viscosity-reducing asphalt modifier, the curing component and the catalytic component are respectively one or more of the corresponding substances.

The diluted asphalt mixture comprises 94.1-95.3% of mineral aggregate and 4.7-5.9% of diluted asphalt by mass percent; the mass percentage of each component in the diluted asphalt is 70-90% of matrix asphalt and 10-30% of diluted asphalt modifier. The diluted asphalt modifier comprises 82-96% of viscosity-reducing asphalt modifier and 4-18% of solidified asphalt modifier by mass percent; the solidified asphalt modifier comprises 33-56% of solidified components and 44-67% of catalytic components by mass percent.

The diluted asphalt mixture has low cost, less pollution and low power consumption, and the road performance of the material reaches the use requirement and may reach the performance index of hot mixed asphalt mixture.

The preparation method of the diluted asphalt mixture comprises the following steps in sequence:

the method comprises the following steps: weighing a certain amount of mineral aggregate and diluted asphalt according to requirements for later use;

step two: stirring the mineral aggregate in a stirring pot;

step three: heating the diluted asphalt to a certain temperature;

step four: and adding the heated diluted asphalt into mineral aggregate, uniformly mixing, and standing to obtain the diluted asphalt mixture.

In the second step, the stirring temperature of the mineral aggregate is 5-26 ℃, and the stirring time is 0.5-2 min; in the third step, the heating temperature of the diluted asphalt is 70-110 ℃, and the heating time is 1-2 min; in the fourth step, the mixing temperature is 70-110 ℃, the mixing time is 1-2.5min, and the standing time is 5-10 min. The stirring method is shear stirring, and the stirring speed is 1500-.

The preparation method of the diluted asphalt mixture is simple, has good cost control, can effectively reduce the mixing temperature of the asphalt mixture, and has good road performance.

Specifically, the following description is provided: the technical scheme of the invention relates to a plurality of parameters, and the beneficial effects and the remarkable progress of the invention can be obtained only by comprehensively considering the synergistic effect among the parameters. In addition, the value ranges of the parameters in the technical scheme are obtained through a large number of tests, and for each parameter and the combination of the parameters, the inventor records a large number of test data, is limited by space, and does not disclose specific test data.

Detailed Description

In order that the invention may be further understood, the invention will now be described in detail with reference to specific examples.

Example 1:

the diluted asphalt modifier is a composite material and is formed by compounding a viscosity-reducing asphalt modifier and a solidified asphalt modifier, and the solidified asphalt modifier is formed by compounding a solidified component and a catalytic component.

The preparation method of the diluted asphalt modifier comprises the following steps in sequence:

step two: adding a certain amount of catalytic component into the curing component, uniformly mixing and standing;

In this embodiment, the diluted asphalt modifier comprises 82% of viscosity-reducing asphalt modifier and 18% of solidified asphalt modifier by mass. The solidified asphalt modifier comprises 33% of solidified components and 67% of catalytic components in percentage by mass.

In this example, the viscosity-reducing asphalt modifier is diesel oil, the curing component is epoxy soybean oil acrylate, and the catalytic component is 2-hydroxy-2-methyl-1-phenyl-1-propanone.

Taking 1000 g of diluted asphalt modifier as an example, 820 g of viscosity-reducing asphalt modifier and 180 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 59.4 g of the curing component and 120.6 g of the catalytic component are required.

When the diluted asphalt modifier is prepared, 50 percent of catalytic component is firstly added into the curing component, namely 60.3 g of catalytic component is firstly added, the stirring temperature is 5 ℃, the stirring time is 20min, and the standing is 8 min; continuously adding 60.3 g of catalytic component into the curing component, stirring at 10 ℃ for 5min, and standing for 8 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at 15 ℃ for 5min, and standing for 10 min.

Example 2:

the composition, process, principle and effect of the diluted asphalt modifier are basically the same as those of the embodiment 1, except that:

in this embodiment, the diluted asphalt modifier comprises, by mass, 96% of a viscosity-reducing asphalt modifier and 4% of a solidified asphalt modifier. The solidified asphalt modifier comprises 56% of a solidified component and 44% of a catalytic component in percentage by mass.

In this example, the viscosity-reducing asphalt modifier is kerosene, the curing component is castor oil-based polyurethane acrylate, and the catalytic component is phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide.

Taking 1000 g of diluted asphalt modifier as an example, 960 g of viscosity-reducing asphalt modifier and 40 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 22.4 g of the curing component and 17.6 g of the catalytic component are required.

When the diluted asphalt modifier is prepared, 70 percent of catalytic component is firstly added into the curing component, namely 12.32 g of catalytic component is firstly added, the stirring temperature is 10 ℃, the stirring time is 5min, and the standing is 5 min; continuously adding 5.28 g of catalytic component into the curing component, stirring at the temperature of 8 ℃ for 10min, and standing for 5 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 10 ℃ for 20min, and standing for 5 min.

Example 3:

in this embodiment, the diluted asphalt modifier comprises 90% of viscosity-reducing asphalt modifier and 10% of solidified asphalt modifier by mass. The solidified asphalt modifier comprises 44% of a solidified component and 56% of a catalytic component in percentage by mass.

In this embodiment, the viscosity-reducing asphalt modifier is gasoline, the curing component is cardanol-based polyurethane acrylate, and the catalytic component is (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide.

Taking 1000 g of diluted asphalt modifier as an example, 900 g of viscosity-reducing asphalt modifier and 100 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 44 g of curing component and 56 g of catalytic component are required.

When the diluted asphalt modifier is prepared, firstly adding 60 percent of catalytic component into the curing component, namely, firstly adding 33.6 g of catalytic component, stirring at the temperature of 8 ℃, stirring for 12min, and standing for 6 min; continuously adding 22.4 g of catalytic component into the curing component, stirring at the temperature of 9 ℃ for 8min, and standing for 6 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 12 ℃ for 16min, and standing for 8 min.

Example 4:

in this embodiment, the diluted asphalt modifier comprises 84% of the viscosity-reducing asphalt modifier and 16% of the solidified asphalt modifier by mass. The solidified asphalt modifier comprises 38 percent of solidified components and 62 percent of catalytic components by mass.

In this embodiment, the viscosity-reducing asphalt modifier is gasoline, the curing component is maleated epoxy soybean oil acrylate, and the catalytic component is 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone.

Taking 1000 g of diluted asphalt modifier as an example, 840 g of viscosity-reducing asphalt modifier and 160 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 60.8 g of the curing component and 99.2 g of the catalytic component are required.

When the diluted asphalt modifier is prepared, 55 percent of catalytic component is added into the curing component, namely 54.56 g of catalytic component is added, the stirring temperature is 6 ℃, the stirring time is 8min, and the standing is 5.5 min; continuously adding 44.64 g of catalytic component into the curing component, stirring at the temperature of 8.5 ℃ for 6min, and standing for 5.5 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 11 ℃ for 10min, and standing for 6 min.

Example 5:

in this embodiment, the diluted asphalt modifier comprises, by mass, 92% of a viscosity-reducing asphalt modifier and 8% of a solidified asphalt modifier. The solidified asphalt modifier comprises 50% of solidified components and 50% of catalytic components in percentage by mass.

In this example, the viscosity-reducing asphalt modifier is gasoline, the curing component is cyclopentadienized linseed oil, and the catalytic component is 2-isopropyl thioxanthone.

Taking 1000 g of diluted asphalt modifier as an example, 920 g of viscosity-reducing asphalt modifier and 80 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 40 g of the curing component and 40 g of the catalytic component are required.

When the diluted asphalt modifier is prepared, firstly, 65 percent of catalytic component is added into the curing component, namely, 26 g of catalytic component is added, the mixing temperature is 9 ℃, the mixing time is 16min, and the mixture is kept stand for 7 min; continuously adding 14 g of catalytic component into the curing component, stirring at 9.5 ℃ for 9min, and standing for 7 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 13 ℃ for 18min, and standing for 9 min.

Example 6:

in this embodiment, the diluted asphalt modifier comprises, by mass, 86% of a viscosity-reducing asphalt modifier and 14% of a solidified asphalt modifier. The solidified asphalt modifier comprises 36 mass percent of solidified components and 64 mass percent of catalytic components.

Taking 1000 g of diluted asphalt modifier as an example, 860 g of viscosity-reducing asphalt modifier and 140 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 50.4 g of the curing component and 89.6 g of the catalytic component are required.

In this embodiment, the viscosity-reducing asphalt modifier is diesel oil; the proportion of the curing components is as follows: the addition amount of the epoxy soybean oil acrylate is 1.8 times of that of the castor oil-based polyurethane acrylate; the proportion of the catalytic components is as follows: the mixture ratio of 2-hydroxy-2-methyl-1-phenyl-1-acetone, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide and 1-hydroxy-cyclohexyl benzophenone (184) is 1: 0.8: 1.4.

namely: 860 g of diesel oil; 32.4 g of epoxy soybean oil acrylate and 18 g of castor oil-based polyurethane acrylate; 28 g of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 22.4 g of phenylbis (2, 4, 6-trimethylbenzoyl) phosphine oxide and 39.2 g of 1-hydroxy-cyclohexanophenone (184).

When the diluted asphalt modifier is prepared, firstly adding 52 percent of catalytic component into the curing component, namely firstly adding 46.59 g of catalytic component, stirring at the temperature of 7 ℃, stirring for 10min, and standing for 6 min; continuing to add 43.01 g of catalytic component into the curing component, stirring at 8 ℃, stirring for 7min, and standing for 6 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 11 ℃ for 12min, and standing for 7 min.

Example 7:

in this embodiment, the diluted asphalt modifier comprises, by mass, 94% of a viscosity-reducing asphalt modifier and 6% of a solidified asphalt modifier. The solidified asphalt modifier comprises 52 percent of solidified components and 48 percent of catalytic components by mass.

Taking 1000 g of diluted asphalt modifier as an example, 940 g of viscosity-reducing asphalt modifier and 60 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 31.2 g of curing component and 28.8 g of catalytic component are required.

In this embodiment, the viscosity-reducing asphalt modifier is diesel oil; the proportion of the curing components is as follows: the addition amount of the epoxy soybean oil acrylate is 2.1 times of that of the castor oil-based polyurethane acrylate; the proportion of the catalytic components is as follows: the mixture ratio of 2-hydroxy-2-methyl-1-phenyl-1-acetone, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide and 1-hydroxy-cyclohexyl benzophenone (184) is 1: 0.8: 1.4.

Namely: 940 g of diesel oil; 21.14 g of epoxy soybean oil acrylate and 10.06 g of castor oil-based polyurethane acrylate; 9 g of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 7.2 g of phenylbis (2, 4, 6-trimethylbenzoyl) phosphine oxide and 12.6 g of 1-hydroxy-cyclohexanophenone (184).

When the diluted asphalt modifier is prepared, firstly adding 58 percent of catalytic component into the curing component, namely, firstly adding 16.7 g of catalytic component, stirring at the temperature of 8 ℃, stirring for 14min, and standing for 6.5 min; continuously adding 12.1 g of catalytic component into the curing component, stirring at 9 ℃ for 8.5min, and standing for 6.5 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 10.5 ℃ for 8min, and standing for 5.5 min.

Example 8:

in this embodiment, the diluted asphalt modifier comprises 88% of viscosity-reducing asphalt modifier and 12% of solidified asphalt modifier by mass. The solidified asphalt modifier comprises 48 percent of solidified components and 52 percent of catalytic components by mass.

Taking 1000 g of diluted asphalt modifier as an example, 880 g of viscosity-reducing asphalt modifier and 120 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 57.6 g of the curing component and 62.4 g of the catalytic component are required.

In this embodiment, the viscosity-reducing asphalt modifier is diesel oil; the proportion of the curing components is as follows: the addition amount of the epoxy soybean oil acrylate is 2.0 times of that of the castor oil-based polyurethane acrylate; the proportion of the catalytic components is as follows: the mixture ratio of 2-hydroxy-2-methyl-1-phenyl-1-acetone, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide and 1-hydroxy-cyclohexyl benzophenone (184) is 1: 0.8: 1.4.

Namely: 880 g of diesel oil; 38.4 g of epoxy soybean oil acrylate and 19.2 g of castor oil-based polyurethane acrylate; 19.5 g of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 15.6 g of phenylbis (2, 4, 6-trimethylbenzoyl) phosphine oxide and 27.3 g of 1-hydroxy-cyclohexylbenzophenone (184).

When the diluted asphalt modifier is prepared, firstly, 62 percent of catalytic component is added into the curing component, namely, 38.69 g of catalytic component is added firstly, the mixing temperature is 9.5 ℃, the mixing time is 18min, and the standing is 7.5 min; continuously adding 23.71 g of catalytic component into the curing component, stirring at 10 ℃ for 9.5min, and standing for 7 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 12.5 ℃ for 17min, and standing for 8.5 min.

Example 9:

in this embodiment, the diluted asphalt modifier comprises 82% of viscosity-reducing asphalt modifier and 18% of solidified asphalt modifier by mass. The solidified asphalt modifier comprises 36 mass percent of solidified components and 64 mass percent of catalytic components.

Taking 1000 g of diluted asphalt modifier as an example, 820 g of viscosity-reducing asphalt modifier and 180 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 64.8 g of curing component and 115.2 g of catalytic component are required.

In this embodiment, the viscosity-reducing asphalt modifier is diesel oil; the proportion of the curing components is as follows: the addition amount of the epoxy soybean oil itaconate is 1.6 times of that of the cyclopentadienized linseed oil; the proportion of the catalytic components is as follows: the mixture ratio of (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone, and 2-isopropyl thia-thermo-ketone is 1: 1.4: 2.1.

Namely: 820 g of diesel oil; 39.88 g of epoxidized soybean oil itaconate and 24.92 g of cyclopentadienylated linseed oil; (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide 25.6 g, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone 35.84 g, and 2-isopropylthia-ne 53.76 g.

When the diluted asphalt modifier is prepared, 68 percent of catalytic component is firstly added into the curing component, namely 78.34 g of catalytic component is firstly added, the stirring temperature is 5.5 ℃, the stirring time is 6min, and the standing is 5 min; continuously adding 36.86 g of catalytic component into the curing component, stirring at 8 ℃, stirring for 5.5min, and standing for 5 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 11 ℃ for 10min, and standing for 6 min.

Example 10:

In this embodiment, the viscosity-reducing asphalt modifier is diesel oil; the proportion of the curing components is as follows: the addition amount of the epoxy soybean oil itaconate is 2.0 times of that of the cyclopentadienized linseed oil; the proportion of the catalytic components is as follows: the mixture ratio of (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone, and 2-isopropyl thia-thermo-ketone is 1: 1.4: 2.1.

Namely: 820 g of diesel oil; 29.33 g of epoxidized soybean oil itaconate and 14.67 g of cyclopentadienylated linseed oil; (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide 12.44 g, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone 17.42 g, and 2-isopropylthia-ne 26.13 g.

When the diluted asphalt modifier is prepared, 56 percent of catalytic component is added into the curing component, namely 31.36 g of catalytic component is added, the stirring temperature is 5.5 ℃, the stirring time is 6min, and the standing is 5 min; continuously adding 24.64 g of catalytic component into the curing component, stirring at the temperature of 8 ℃, stirring for 5.5min, and standing for 5 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 11 ℃ for 10min, and standing for 6 min.

Example 11:

in this embodiment, the diluted asphalt modifier comprises, by mass, 85% of a viscosity-reducing asphalt modifier and 15% of a solidified asphalt modifier. The solidified asphalt modifier comprises 40% of solidified components and 60% of catalytic components by mass.

Taking 1000 g of diluted asphalt modifier as an example, 850 g of viscosity-reducing asphalt modifier and 150 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 60 g of curing component and 90 g of catalytic component are required.

In this embodiment, the viscosity-reducing asphalt modifier is diesel oil; the proportion of the curing components is as follows: the addition amount of the epoxy soybean oil itaconate is 1.8 times of that of the cyclopentadienized linseed oil; the proportion of the catalytic components is as follows: the mixture ratio of (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone, and 2-isopropyl thia-thermo-ketone is 1: 1.4: 2.1.

Namely: 850 g of diesel oil; 38.57 g of epoxidized soybean oil itaconate and 21.43 g of cyclopentadienylated linseed oil; 20 g of (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide, 28 g of 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone, and 42 g of 2-isopropylthioxanthone.

When the diluted asphalt modifier is prepared, 66 percent of catalytic component is added into the curing component, namely 59.4 g of catalytic component is added, the stirring temperature is 5.5 ℃, the stirring time is 6min, and the standing is 5 min; continuously adding 30.6 g of catalytic component into the curing component, stirring at the temperature of 8 ℃, for 5.5min, and standing for 5 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 11 ℃ for 10min, and standing for 6 min.

Example 12:

in this embodiment, the diluted asphalt modifier comprises, by mass, 83% of a viscosity-reducing asphalt modifier and 17% of a solidified asphalt modifier. The solidified asphalt modifier comprises 60% of solidified components and 40% of catalytic components in percentage by mass.

Taking 1000 g of diluted asphalt modifier as an example, 830 g of viscosity-reducing asphalt modifier and 170 g of solidified asphalt modifier are needed. In the cured asphalt modifier, 102 g of curing component and 68 g of catalytic component are required.

In this embodiment, the viscosity-reducing asphalt modifier is diesel oil; the proportion of the curing components is as follows: the proportion of the maleated epoxy soybean oil acrylate, the cardanol-based polyurethane acrylate and the tung oil-based polyurethane acrylate resin is 1: 1.3: 0.8; the proportion of the catalytic components is as follows: the mixture ratio of (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone, and 2-isopropyl thia-thermo-ketone is 1: 1.4: 2.1.

namely: 830 g of diesel oil; 32.9 g of maleated epoxy soybean oil acrylate, 42.77 g of cardanol-based polyurethane acrylate and 26.32 g of tung oil-based polyurethane acrylate resin; 15.11 g of (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide, 21.16 g of 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone, and 31.73 g of 2-isopropylthioxanthone.

When the diluted asphalt modifier is prepared, firstly, 64 percent of catalytic component is added into the curing component, namely, 43.52 g of catalytic component is added firstly, the stirring temperature is 5.5 ℃, the stirring time is 6min, and the standing is 5 min; continuously adding 24.48 g of catalytic component into the curing component, stirring at the temperature of 8 ℃, for 5.5min, and standing for 5 min; and finally, adding the prepared solidified asphalt modifier into the viscosity-reducing asphalt modifier, stirring at the temperature of 11 ℃ for 10min, and standing for 6 min.

Example 13:

the diluted asphalt is a composite material, and is compounded by matrix asphalt and a diluted asphalt modifier. The diluted asphalt modifier is formed by compounding a viscosity-reducing asphalt modifier and a solidified asphalt modifier, and the solidified asphalt modifier is formed by compounding a solidified component and a catalytic component.

In this embodiment, the diluted asphalt comprises, by mass, 70% of base asphalt and 30% of a diluted asphalt modifier. For example, when 1000 g of the asphalt diluent is added, 2333 g of the base asphalt is required to prepare 3333 g of the asphalt diluent.

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier are the same as those of example 1.

When the diluted asphalt is prepared, 50 percent of diluted asphalt modifier is firstly added into the base asphalt, namely 500 g of diluted asphalt modifier is firstly added, the mixing temperature is 90 ℃, the mixing time is 20min, and the mixture is kept stand for 5 min; and continuously adding 500 g of diluted asphalt modifier into the base asphalt, stirring at 100 ℃ for 10min, and standing for 5 min.

Example 14:

the composition, process, principle and effect of the diluted asphalt and the preparation method thereof are basically the same as those of the embodiment 13, except that:

in this embodiment, the diluted asphalt comprises 90% of base asphalt and 10% of diluted asphalt modifier by mass. For example, when 1000 g of the asphalt modifier is added, 9000 g of the base asphalt is required to prepare 10000 g of the asphalt modifier.

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier are the same as those of example 2.

When the diluted asphalt is prepared, 80 percent of diluted asphalt modifier is firstly added into the base asphalt, namely 800 g of diluted asphalt modifier is firstly added, the stirring temperature is 150 ℃, the stirring time is 5min, and the standing is 10 min; continuously adding 200 g of diluted asphalt modifier into the matrix asphalt, stirring at 150 ℃ for 5min, and standing for 10 min.

Example 15:

in this embodiment, the diluted asphalt comprises, by mass, 80% of a base asphalt and 20% of a diluted asphalt modifier. For example, if 1000 g of the asphalt modifier is added, then 5000 g of the asphalt modifier is added, and 4000 g of the base asphalt is required.

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier are the same as those of example 3.

When the diluted asphalt is prepared, firstly adding 65 percent of diluted asphalt modifier into the base asphalt, namely firstly adding 650 g of diluted asphalt modifier, stirring at 120 ℃ for 12min, and standing for 8 min; and continuously adding 350 g of diluted asphalt modifier into the base asphalt, stirring at 125 ℃ for 8min, and standing for 8 min.

Example 16:

in this embodiment, the diluted asphalt comprises, by mass, 75% of a base asphalt and 25% of a diluted asphalt modifier. For example, 1000 g of the asphalt modifier is added to prepare 4000 g of asphalt diluent, 3000 g of base asphalt is required.

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier are the same as those of example 4.

When the diluted asphalt is prepared, 60 percent of diluted asphalt modifier is firstly added into the base asphalt, namely 600 grams of diluted asphalt modifier is firstly added, the mixing temperature is 105 ℃, the mixing time is 8min, and the mixture is kept stand for 6 min; and continuously adding 400 g of diluted asphalt modifier into the matrix asphalt, stirring at the temperature of 110 ℃ for 6min, and standing for 6 min.

Example 17:

in this embodiment, the diluted asphalt comprises, by mass, 85% of base asphalt and 15% of a diluted asphalt modifier. For example, if 1000 g of the asphalt modifier is added, 6667 g of asphalt diluent is prepared, and 5667 g of base asphalt is required.

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier are the same as those of example 5.

When the diluted asphalt is prepared, 70 percent of diluted asphalt modifier is firstly added into the base asphalt, namely 700 g of diluted asphalt modifier is firstly added, the mixing temperature is 135 ℃, the mixing time is 16min, and the mixture is kept stand for 9 min; and continuously adding 300 g of diluted asphalt modifier into the matrix asphalt, stirring at the temperature of 135 ℃ for 9min, and standing for 9 min.

Example 18:

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier are the same as those in example 6.

When the diluted asphalt is prepared, 80 percent of diluted asphalt modifier is firstly added into the base asphalt, namely 800 g of diluted asphalt modifier is firstly added, the mixing temperature is 90 ℃, the mixing time is 5min, and the mixture is kept stand for 5 min; continuously adding 200 g of diluted asphalt modifier into the base asphalt, stirring at 100 ℃ for 5min, and standing for 5 min.

Example 19:

in this embodiment, the diluted asphalt comprises 88% of base asphalt and 12% of diluted asphalt modifier by mass. For example, if 8333 g of the asphalt diluent is prepared by adding 1000 g of the asphalt diluent, 7333 g of the base asphalt is required.

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier were the same as in example 7.

When the diluted asphalt is prepared, firstly adding 75 percent of diluted asphalt modifier into the base asphalt, namely firstly adding 750 grams of diluted asphalt modifier, stirring at 100 ℃ for 6min, and standing for 5.5 min; and continuously adding 250 g of diluted asphalt modifier into the base asphalt, stirring at 105 ℃ for 5.5min, and standing for 5.5 min.

Example 20:

in this embodiment, the diluted asphalt comprises 89% of base asphalt and 11% of diluted asphalt modifier by mass. Taking 1000 g of diluted asphalt modifier as an example, 8091 g of base asphalt is needed to prepare 9091 g of diluted asphalt.

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier are the same as those of example 8.

When the diluted asphalt is prepared, 62 percent of diluted asphalt modifier is firstly added into the base asphalt, namely 620 grams of diluted asphalt modifier is firstly added, the mixing temperature is 95 ℃, the mixing time is 5min, and the standing is 5 min; 380 g of diluted asphalt modifier is continuously added into the base asphalt, the mixing temperature is 102 ℃, the mixing time is 5min, and the standing is 5 min.

Example 21:

in this embodiment, the diluted asphalt comprises 86% by mass of the base asphalt and 14% by mass of the diluted asphalt modifier. For example, when 1000 g of the asphalt modifier is added, 6143 g of the base asphalt is required to prepare 7143 g of the asphalt modifier.

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier are the same as those of example 9.

When the diluted asphalt is prepared, 55 percent of diluted asphalt modifier is firstly added into the base asphalt, namely 550 g of diluted asphalt modifier is firstly added, the mixing temperature is 102 ℃, the mixing time is 7min, and the standing is 5 min; continuously adding 450 g of diluted asphalt modifier into the matrix asphalt, stirring at 108 ℃ for 5min, and standing for 5 min.

Example 22:

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier are the same as those of example 10.

When the diluted asphalt is prepared, 63% of diluted asphalt modifier is added into the base asphalt, namely 630 g of diluted asphalt modifier is added, the mixing temperature is 106 ℃, the mixing time is 10min, and the mixture is kept stand for 5 min; and continuously adding 370 g of diluted asphalt modifier into the base asphalt, stirring at 112 ℃ for 7min, and standing for 7 min.

Example 23:

the composition, process, principle and effect of a diluted asphalt and its preparation method are basically the same as those of example 13, except that:

in this embodiment, the diluted asphalt comprises, by mass, 78% of a base asphalt and 22% of a diluted asphalt modifier. For example, when 1000 g of the asphalt modifier is added, 4545 g of the asphalt modifier is prepared, and 3545 g of the base asphalt is required.

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier were the same as those of example 11.

When the diluted asphalt is prepared, firstly adding 78% of diluted asphalt modifier into the base asphalt, namely, firstly adding 780 g of diluted asphalt modifier, stirring at 108 ℃, stirring for 5min, and standing for 5 min; and continuously adding 220 g of diluted asphalt modifier into the base asphalt, stirring at 106 ℃ for 7min, and standing for 7 min.

Example 24:

In this example, the components, preparation method, formulation of curing component, formulation of catalytic component, etc. of the diluted asphalt modifier were the same as those of example 12.

When the diluted asphalt is prepared, 66 percent of diluted asphalt modifier is firstly added into the base asphalt, namely 660 grams of diluted asphalt modifier is firstly added, the mixing temperature is 110 ℃, the mixing time is 5min, and the standing is 5 min; and continuously adding 340 g of diluted asphalt modifier into the matrix asphalt, stirring at the temperature of 110 ℃, stirring for 7min, and standing for 7 min.

Example 25:

the diluted asphalt mixture is a composite material, and is compounded by mineral aggregates and diluted asphalt; the diluted asphalt is compounded by matrix asphalt and a diluted asphalt modifier. The diluted asphalt modifier is formed by compounding a viscosity-reducing asphalt modifier and a solidified asphalt modifier, and the solidified asphalt modifier is formed by compounding a solidified component and a catalytic component.

step two: stirring the mineral aggregate in a stirring pot;

step three: heating the diluted asphalt to a certain temperature;

In this embodiment, the diluted asphalt mixture comprises, by mass, 94.1% of mineral aggregate and 5.9% of diluted asphalt.

In this example, the components and preparation method of the asphalt cutback modifier, and the like were the same as in example 13. According to example 13, 3333 grams of cutback bitumen was added, requiring 53159 grams of mineral aggregate.

When the diluted asphalt mixture is prepared, in the second step, the stirring temperature of the mineral aggregate is 5 ℃, and the stirring time is 2 min; in the third step, the heating temperature of the diluted asphalt is 70 ℃, and the heating time is 2 min; in the fourth step, the mixing temperature is 70 ℃, the mixing time is 2.5min, and the standing time is 10 min.

Example 26:

the composition, process, principle and effect of a diluted asphalt mixture and its preparation method are substantially the same as those of example 25, except that:

in this embodiment, the diluted asphalt mixture includes, by mass, 95.3% of mineral aggregate and 4.7% of diluted asphalt.

In this example, the components and preparation method of the asphalt cutback modifier, and the like were the same as in example 14. 10000 grams of cutback bitumen were added as per example 14, requiring 202766 grams of mineral aggregate.

When preparing the diluted asphalt mixture, in the second step, the stirring temperature of the mineral aggregate is 26 ℃, and the stirring time is 0.5 min; in the third step, the heating temperature of the diluted asphalt is 110 ℃, and the heating time is 1 min; in the fourth step, the mixing temperature is 110 ℃, the mixing time is 1min, and the standing time is 5 min.

Example 27:

in this embodiment, the diluted asphalt mixture comprises, by mass, 94.7% of mineral aggregate and 5.3% of diluted asphalt.

In this example, the components and preparation method of the asphalt cutback modifier, and the like were the same as in example 15. 5000 grams of cutback bitumen was added as per example 15, requiring 89340 grams of mineral aggregate.

When preparing the diluted asphalt mixture, in the second step, the stirring temperature of the mineral aggregate is 15 ℃, and the stirring time is 1.2 min; in the third step, the heating temperature of the diluted asphalt is 90 ℃, and the heating time is 1.5 min; in the fourth step, the mixing temperature is 90 ℃, the mixing time is 1.8min, and the standing time is 8 min.

Example 28:

in this embodiment, the diluted asphalt mixture comprises, by mass, 94.4% of mineral aggregate and 5.6% of diluted asphalt.

In this example, the components and preparation method of the asphalt cutback modifier, and the like were the same as in example 16. 4000 grams of cutback bitumen were added as per example 16, requiring 67429 grams of mineral aggregate.

When preparing the diluted asphalt mixture, in the second step, the stirring temperature of the mineral aggregate is 10 ℃, and the stirring time is 0.8 min; in the third step, the heating temperature of the diluted asphalt is 80 ℃, and the heating time is 1.2 min; in the fourth step, the mixing temperature is 80 ℃, the mixing time is 1.4min, and the standing time is 7 min.

Example 29:

in this embodiment, the diluted asphalt mixture comprises, by mass, 95% of mineral aggregate and 5% of diluted asphalt.

In this example, the components and preparation method of the asphalt cutback modifier, and the like were the same as in example 17. 6667 grams of cutback bitumen was added as per example 17, requiring 126673 grams of mineral aggregate.

When the diluted asphalt mixture is prepared, in the second step, the stirring temperature of the mineral aggregate is 20 ℃, and the stirring time is 1.6 min; in the third step, the heating temperature of the diluted asphalt is 100 ℃, and the heating time is 1.7 min; in the fourth step, the mixing temperature is 100 ℃, the mixing time is 2.2min, and the standing time is 9 min.

Example 30:

the composition, process, principle and effect of a diluted asphalt mixture and its preparation method are basically the same as those of example 25, except that:

in this embodiment, the diluted asphalt mixture comprises, by mass, 94.2% of mineral aggregate and 5.8% of diluted asphalt.

In this example, the components and preparation method of the asphalt cutback modifier, and the like were the same as in example 18. 10000 grams of cutback bitumen were added as per example 18, requiring 162414 grams of mineral aggregate.

When preparing the diluted asphalt mixture, in the second step, the stirring temperature of the mineral aggregate is 8 ℃, and the stirring time is 0.7 min; in the third step, the heating temperature of the diluted asphalt is 78 ℃, and the heating time is 1.1 min; in the fourth step, the mixing temperature is 78 ℃, the mixing time is 1.3min, and the standing time is 6 min.

Example 31:

in this embodiment, the diluted asphalt mixture comprises, by mass, 94.5% of mineral aggregate and 5.5% of diluted asphalt.

In this example, the components and preparation method of the asphalt cutback modifier, and the like were the same as in example 19. 8333 grams of cutback asphalt was added, according to example 19, requiring 143176 grams of mineral aggregate.

When preparing the diluted asphalt mixture, in the second step, the stirring temperature of the mineral aggregate is 12 ℃, and the stirring time is 0.9 min; in the third step, the heating temperature of the diluted asphalt is 82 ℃, and the heating time is 1.3 min; in the fourth step, the mixing temperature is 82 ℃, the mixing time is 1.5min, and the standing time is 7.5 min.

Example 32:

in this embodiment, the diluted asphalt mixture includes, by mass, 95.2% of mineral aggregate and 4.8% of diluted asphalt.

In this example, the components and preparation method of the asphalt cutback modifier, and the like were the same as in example 20. According to example 20, 9091 grams of cutback bitumen was added, requiring 180305 grams of mineral aggregate.

When preparing the diluted asphalt mixture, in the second step, the stirring temperature of the mineral aggregate is 6 ℃, and the stirring time is 0.6 min; in the third step, the heating temperature of the diluted asphalt is 72 ℃, and the heating time is 1 min; in the fourth step, the mixing temperature is 12 ℃, the mixing time is 1min, and the standing time is 5.5 min.

Example 33:

In this example, the components and preparation method of the diluted asphalt modifier, and the like were the same as in example 21. Following example 21, 7143 grams of cutback bitumen was added, requiring 135717 grams of mineral aggregate.

When preparing the diluted asphalt mixture, in the second step, the stirring temperature of the mineral aggregate is 13 ℃, and the stirring time is 1 min; in the third step, the heating temperature of the diluted asphalt is 85 ℃, and the heating time is 1.4 min; in the fourth step, the mixing temperature is 85 ℃, the mixing time is 1.6min, and the standing time is 8 min.

Example 34:

in this embodiment, the diluted asphalt mixture comprises, by mass, 94.8% of mineral aggregate and 5.2% of diluted asphalt.

In this example, the components and preparation method of the diluted asphalt modifier, and the like were the same as in example 22. 10000 grams of cutback bitumen were added as per example 22, requiring 182308 grams of mineral aggregate.

When preparing the diluted asphalt mixture, in the second step, the stirring temperature of the mineral aggregate is 16 ℃, and the stirring time is 1.3 min; in the third step, the heating temperature of the diluted asphalt is 95 ℃, and the heating time is 1.6 min; in the fourth step, the mixing temperature is 95 ℃, the mixing time is 2min, and the standing time is 8.5 min.

Example 35:

In this example, the components and preparation method of the diluted asphalt modifier, and the like were the same as in example 23. 4545 grams of cutback bitumen were added as per example 23, requiring 82859 grams of mineral aggregate.

When preparing the diluted asphalt mixture, in the second step, the stirring temperature of the mineral aggregate is 18 ℃, and the stirring time is 1.5 min; in the third step, the heating temperature of the diluted asphalt is 96 ℃, and the heating time is 1.6 min; in the fourth step, the mixing temperature is 96 ℃, the mixing time is 2.1min, and the standing time is 8.5 min.

Example 36:

in this embodiment, the diluted asphalt mixture comprises, by mass, 94.6% of mineral aggregate and 5.4% of diluted asphalt.

In this example, the components and preparation method of the asphalt cutback modifier, and the like were the same as in example 24. 5000 grams of cutback bitumen was added as per example 24, requiring 87593 grams of mineral aggregate.

When preparing the diluted asphalt mixture, in the second step, the stirring temperature of the mineral aggregate is 20 ℃, and the stirring time is 1.5 min; in the third step, the heating temperature of the diluted asphalt is 90 ℃, and the heating time is 1.6 min; in the fourth step, the mixing temperature is 90 ℃, the mixing time is 2.1min, and the standing time is 8.5 min.

The results of the performance tests of the diluted asphalt modifiers prepared in examples 1 to 12 are shown in Table 1.

Table 1: performance test results of the asphalt dilution modifier

The test data in table 1 is for example the data in beijing, and the test data in other areas is not much different from beijing.

The cutback asphalts prepared in examples 13 to 17 were subjected to the penetration, ductility, softening point and other performance tests in accordance with the test protocol for road engineering asphalts and asphalt mixtures (JTJ E20-2011), and the test results are shown in table 2.

Table 2: performance test results of the diluted asphalt after curing

The diluted asphalts prepared in examples 25 to 36 were subjected to performance tests such as low-temperature crack resistance, high-temperature dynamic stability, freeze-thaw splitting and the like according to test protocol for road engineering asphalts and asphalt mixtures (JTJ E20-2011), and the test results are shown in tables 3 to 7.

Table 3: test result of low-temperature crack resistance of diluted asphalt mixture

Table 4: test results of high temperature stability of diluted asphalt mixture (just when it was laid, more than 800)

Example numbering	Degree of dynamic stability (mm/times)
		Example 25	835
Example 26	819
		Example 27	830
Example 28	819
		Example 29	850
Example 30	870
		Example 31	873
Example 32	865
		Example 33	857
Example 34	855
		Example 35	854
Example 36	850

Table 5: initial Marshall test Performance test results for diluted asphalt mix (Strength just after paving, greater than 3)

Table 6: performance test results of the Molding Marshall test for diluted asphalt mixture (Strength after curing, greater than 8)

Example numbering	Stability (KN)	Flow value (0.1mm)
			Example 25	9.21	32.1
Example 26	9.24	32.1
			Example 27	9.43	32.1
Example 28	9.28	31.6
			Example 29	9.26	32.2
Example 30	9.51	32.0
			Example 31	9.64	32.0
Example 32	9.63	32.0
			Example 33	9.67	31.2
Example 34	9.66	32.4
			Example 35	9.62	32.0
Example 36	9.64	32.0

Table 7: marshall test residual stability performance test result of diluted asphalt mixture

The base asphalt used in the above examples was heavy traffic No. 70. The mineral aggregates used in the above examples were basalt and/or diabase, as shown in the following table (LB-13 pool).

The matrix asphalt in the embodiment can be replaced by SBS asphalt, and after replacement, various performances of the prepared asphalt mixture can be improved by 15-25%.

It will be understood by those skilled in the art that the asphalt cutback modifier and the method of making the same of the present invention includes any combination of the summary and the detailed description of the invention described above, and is not described in detail or by each of the embodiments of the combination for the sake of brevity. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A diluted asphalt modifier is a composite material, and is characterized in that: the diluted asphalt modifier is formed by compounding a viscosity-reducing asphalt modifier and a solidified asphalt modifier, and the solidified asphalt modifier is formed by compounding a solidified component and a catalytic component; the curing component comprises one or more of epoxidized soybean oil acrylate, castor oil-based polyurethane acrylate, cardanol-based polyurethane acrylate, tung oil-based polyurethane acrylate resin, maleated epoxidized soybean oil acrylate, epoxidized soybean oil itaconate and cyclopentadienylated linseed oil; the catalytic component comprises one or more of 2-hydroxy-2-methyl-1-phenyl-1-acetone, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, 1-hydroxy-cyclohexylbenzophenone, (2, 4, 6-trimethylbenzoyl) diphenylphosphine oxide, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-acetone, and 2-isopropylthia-ne; the solidified asphalt modifier comprises 33-56% of solidified components and 44-67% of catalytic components by mass percent.

2. The diluted asphalt modifier according to claim 1, wherein: the viscosity-reducing asphalt modifier comprises one or more of diesel oil, kerosene and gasoline.

3. The diluted asphalt modifier according to claim 1, wherein: the diluted asphalt modifier comprises 82-96% of viscosity-reducing asphalt modifier and 4-18% of solidified asphalt modifier by mass percent.

4. A process for the preparation of a cutback asphalt modifier according to any one of claims 1 to 3, comprising the following steps in sequence:

5. The process for producing a diluted asphalt modifier according to claim 4, wherein: in the first step, the weighed viscosity-reducing asphalt modifier accounts for 82-96% by mass of the diluted asphalt modifier to be prepared, and the total amount of the weighed curing component and the weighed catalytic component accounts for 4-18% by mass of the diluted asphalt modifier to be prepared.

6. The process for producing a diluted asphalt modifier according to claim 5, wherein: in the first step, the weighed curing component accounts for 33-56% by mass of the cured asphalt modifier to be prepared, and the weighed catalytic component accounts for 44-67% by mass of the cured asphalt modifier to be prepared.

7. The process for producing a diluted asphalt modifier according to claim 4, wherein: in the second step, the mixing temperature is 5-10 ℃, the mixing time is 5-20min, and the standing time is 5-8 min; in the third step, the mixing temperature is 8-10 ℃, the mixing time is 5-10min, and the standing time is 5-8 min; in the fourth step, the mixing temperature is 10-15 ℃, the mixing time is 5-20min, and the standing time is 5-10 min.