CN110450297A - Resin compounded is modified high-viscosity asphalt preparation method - Google Patents

Abstract

The invention relates to the technical field of asphalt, and discloses a method for preparing resin composite modified high-viscosity asphalt, comprising the following preparation steps: 1), weighing modifier, resin viscosity and toughness auxiliary agent and granular stabilizer; 2), melting 3), stir the base asphalt in the sample container, and put in the modifier; 4), the modifier swells in the base asphalt; 5), the modifier swells in the base asphalt After the swelling is completed, put in the resin viscosity and toughness additive; 6), put in the granular stabilizer; 7), keep stirring the mixture in the sample container for not less than 2 hours, and let it stand to form a resin composite modified high-viscosity asphalt; 8), Sampling and testing to determine whether the indicators meet the technical requirements; during the stirring process, add modifiers, resin viscosity and toughness additives, and granular stabilizers to the base asphalt, and let it stand to form resin composite modified high-viscosity asphalt. Judging whether the technical requirements are met, the whole preparation process is simple, and the operation is also convenient.

Description

Preparation method of resin composite modified high-viscosity asphalt

technical field

The patent of the present invention relates to the technical field of asphalt, specifically, to a preparation method of resin composite modified high-viscosity asphalt.

Background technique

Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is liquid with a black surface and is soluble in carbon disulfide. Asphalt is a waterproof, moisture-proof and anti-corrosion organic gelling material. Asphalt can be mainly divided into three types: coal tar pitch, petroleum pitch and natural pitch. Among them, coal tar pitch is a by-product of coking; petroleum pitch is the residue after crude oil distillation; natural pitch is stored underground, and some form deposits or in accumulation on the surface of the earth's crust. Asphalt is mainly used in coatings, plastics, rubber and other industries as well as paving roads.

In recent years, permeable asphalt pavement has been widely used on the main roads and expressways of Beijing, Shanghai, Shenzhen and other cities due to its good drainage, noise reduction, anti-skid and other road performance. In order to ensure that the permeable asphalt mixture has good high-temperature anti-rutting performance, durability and anti-scattering performance, it is necessary to use high-viscosity modified asphalt as the binder.

In the prior art, in order to achieve high-viscosity asphalt with better performance, various preparation methods are used for preparation, but the current preparation methods all have the problems of cumbersome preparation steps and troublesome operation.

Contents of the invention

The purpose of the present invention is to provide a method for preparing resin composite modified high-viscosity asphalt, which aims to solve the problems of cumbersome preparation steps and troublesome operation in the preparation of high-viscosity asphalt in the prior art.

The present invention is achieved in this way, the preparation method of resin composite modified high-viscosity asphalt comprises the following preparation steps:

1), weighing modifier, resin viscosity and toughness additives and granular stabilizer;

2) Heat the base asphalt to not lower than 180°C until the base asphalt melts; place the molten base asphalt in the sample container, continue heating the sample container, and keep the temperature of the sample container higher than 180°C ℃;

3), stirring the matrix asphalt in the sample holder, and in the process of stirring, continuously drop into the modifier, and the matrix asphalt is mixed with the modifier to form a mixture;

4), after continuously stirring the mixture for 30min to 60min, the modifier swells in the base asphalt;

5), after the swelling of the modifying agent in the base asphalt is completed, the mixture is continuously stirred, and a resin viscosity and toughness aid is put into the mixture;

6) Putting a granular stabilizer into the mixture of the sample container, stirring the mixture continuously, and during the stirring process, covering the outer surface of the sample container for heat preservation;

7) Stir the mixture in the sample container continuously for not less than 2 hours. After stopping the stirring, let the mixture in the sample container stand for not less than 2 hours to form resin composite modified high-viscosity asphalt;

8) The resin composite modified high-viscosity asphalt in the sampling container is tested to determine whether each index meets the technical requirements and is ready for use.

Further, the modifier includes a star-shaped butadiene-styrene block copolymer and a linear butadiene-styrene block copolymer; in the preparation step 3), the linear butadiene-styrene block copolymer is uniformly dropped into Diene-styrene block copolymer, then drop into the star-shaped butadiene-styrene block copolymer, and after the star-shaped butadiene-styrene block copolymer has been thrown in, increase the stirring speed range to Between 5000r/min～5500r/min.

Further, in the preparation step 3), the sample holder is placed in a stirrer, and the stirrer has a stirring head; the stirring head extends into the mixture of the sample holder, and the stirring head is far from the The distance from the bottom is less than 1/3 of the depth of the mixture.

Further, during the process of adding the modifying agent, the stirring speed of the stirring head ranges from 2000r/min to 2500r/min.

Further, the resin viscosity and toughness aid includes low molecular weight resin and high molecular weight resin; in the preparation step 5), after the swelling of the modifying agent in the base asphalt is completed, the low molecular weight resin is first put into the mixture , and then put in the high molecular weight resin; in the process of putting in the resin viscosity and toughness additive, the stirring speed of the stirring head ranges from 2500r/min to 3500r/min.

Further, in the preparation step 2), the sample holder is placed in an electric heating jacket, and the electric heating jacket is wrapped around the outside of the sample holder, so that the temperature of the base asphalt in the sample holder does not change. lower than 180°C.

Further, the formula composition of the resin composite modified high-viscosity asphalt is as follows: the base asphalt accounts for 88.6% to 91.6%, the modifier accounts for 6.5% to 8.5%, and the resin viscosity and toughness additive accounts for 1.8% ~2.6%, the granular stabilizer accounts for 0.1%~0.3%.

Further, the sample holder has an accommodating cavity for containing base asphalt, and the upper part of the accommodating cavity has an upper opening communicating with the accommodating cavity; Stirring rod, the lower end of the stirring rod has the stirring head for stirring the matrix asphalt in the accommodating cavity, the body has a lifting plate arranged horizontally and used for placing the sample holder, the lifting plate Arranged horizontally, the stirring head is located above the lifting plate; the lifting plate has an upper end surface arranged upward, and the electric heating jacket is placed on the upper end surface of the lifting plate, and the electric heating jacket has an upper opening A heating chamber, the inner wall of the heating chamber is covered with a heating sheet, and a thermocouple is arranged on the heating sheet; the sample holder is placed in the heating chamber, and the outer surface of the sample holder is against the An electric heater, the upper part of the sample holder extends out of the heating cavity.

Further, the upper part of the electric heating jacket has a plurality of installation holes, and the plurality of installation holes are arranged around the outer periphery of the upper opening of the heating chamber, the bottom of the installation hole is provided with a spring, and the installation hole is provided with a spring. There is a movable positioning column, the lower end of the positioning column is in contact with the spring, and the upper end of the positioning column extends out of the installation hole; the outer periphery of the upper part of the sample container is provided with a step ring arranged downward, and the The step ring is arranged around the outer circumference of the sample holder; when the sample holder is placed in the heating chamber, the step ring abuts against the upper end of the positioning column.

Further, the outer periphery of the stirring head is provided with a plurality of stirring blades, and a plurality of the stirring blades are arranged around the outer periphery of the stirring head; the inner end of the stirring blade is connected to the outer periphery of the stirring head, and the stirring The outer end of the head extends outward away from the stirring head, the stirring blade is curved in an arc shape, and the middle part of the stirring blade protrudes and bends toward the rotation direction of the stirring rod; the stirring blade has a The cutting side of the rod rotation direction; the stirring blade has an upper end surface arranged upwards, and along the rotation direction of the stirring rod, the stirring blade is arranged obliquely downward; the upper end surface of the stirring blade is provided with a plurality of A guide groove, a plurality of the guide grooves are arranged at intervals along the direction from the inner end to the outer end of the stirring blade; the guide grooves respectively pass through the two sides of the stirring blade.

Compared with the prior art, the preparation method of the resin composite modified high-viscosity asphalt provided by the present invention heats and melts the base asphalt, and after the base asphalt is melted, it is continuously stirred, and during the stirring process, the modified asphalt is successively added into the base asphalt agent, resin viscosity and toughness additive and granular stabilizer, and then stand still to form resin composite modified high-viscosity asphalt. Finally, the resin composite modified high-viscosity asphalt is tested to judge whether it meets the technical requirements. The whole preparation process is simple. The operation is also convenient.

Description of drawings

Fig. 1 is the preparation flowchart of the resin composite modified high-viscosity asphalt provided by the present invention;

Fig. 2 is the schematic front view of the stirrer provided by the present invention;

Fig. 3 is a schematic front view of the stirring blade provided by the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

In the drawings of this embodiment, the same or similar symbols correspond to the same or similar components; The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. Construction and operation, so the words describing the positional relationship in the drawings are only for illustrative purposes, and should not be construed as limitations on this patent. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

Shown with reference to figure, be the preferred embodiment that the present invention provides.

A method for preparing resin composite modified high-viscosity asphalt, comprising the following preparation steps:

1), weighing modifier, resin viscosity and toughness additives and granular stabilizer;

2), heating the base asphalt to not less than 180°C until the base asphalt melts; place the molten base asphalt in the sample holder 103, continue to heat the sample holder 103, and keep the temperature of the sample holder 103 higher than 180°C;

3), stirring the matrix asphalt in the sample holder 103, and in the process of stirring, continuously drop into the modifier, and the matrix asphalt is mixed with the modifier to form a mixture;

4) After stirring the mixture continuously for 30min to 60min, the modifier swells in the base asphalt;

5) After the modifier is swollen in the base asphalt, the mixture is continuously stirred, and a resin viscosity and toughness additive is put into the mixture;

6) Putting a granular stabilizer into the mixture of the sample holder 103, stirring the mixture continuously, and during the stirring process, covering and heat-insulating the outer surface of the sample holder 103;

7), continuously stir the mixture in the sample holder 103 for not less than 2h, after stopping the stirring, leave the mixture in the sample holder 103 for not less than 2h to form resin composite modified high-viscosity asphalt;

8) Sampling the resin composite modified high-viscosity asphalt in the sample container 103 for detection, judging whether each index meets the technical requirements, and then waiting for use.

In the preparation method of resin composite modified high-viscosity asphalt provided above, the matrix asphalt is heated and melted, and after the matrix asphalt is melted, it is continuously stirred, and in the process of stirring, modifiers and resin viscosity and toughness additives are successively added to the matrix asphalt And granular stabilizers, and then stand still to form resin composite modified high-viscosity asphalt, and finally test the resin composite modified high-viscosity asphalt to judge whether it meets the technical requirements. The whole preparation process is simple and easy to operate.

Modifiers include star-shaped butadiene-styrene block copolymers and linear butadiene-styrene block copolymers; in preparation step 3), the linear butadiene-styrene block Copolymer, then put in the star-shaped butadiene-styrene block copolymer, and when the star-shaped butadiene-styrene block copolymer is added, increase the stirring speed range to 5000r/min～5500r/min .

In preparation step 3), the sample holder 103 is placed in the mixer, and the mixer has a stirring head 110; 1/3 of the depth.

In the process of adding the modifier, the stirring speed of the stirring head 110 ranges from 2000r/min to 2500r/min, so that the high-temperature matrix asphalt can be swirled without splashing.

Resin viscosity and toughness aids include low-molecular-weight resins and high-molecular-weight resins; in the preparation step 5), after the swelling of the modifier in the base asphalt is completed, the low-molecular-weight resins are first dropped into the mixture, and then the high-molecular-weight resins; During the process of adding resin viscosity and toughness additives, the stirring speed of the stirring head 110 ranges from 2500r/min to 3500r/min.

Two polymer synthetic resins with different molecular weights are selected as resin viscosity and toughness additives. Their molecular structures contain active groups such as hydroxyl groups and ether bonds, and the solid content is 100%. During the reaction process, new —OH and —O— , so that the modified high-viscosity modified asphalt has high cohesion and adhesion.

In this example, the base asphalt is mainly Thai Petrochemical IRPC70# road petroleum asphalt. Thai Petrochemical IRPC70# road petroleum asphalt and viscosity and toughness additives should be selected through miscibility tests. The miscibility is not good, easy to segregate, and the storage is poor. If the miscibility is too good, the dynamic viscosity of high-viscosity asphalt will be reduced, and the viscosity cannot be increased. , so choosing a resin viscosity and toughness additive with moderate miscibility is beneficial to improve storage stability and at the same time increase dynamic viscosity at 60°C.

The test is carried out by the amount of modifier and resin viscosity and toughness additives from low to high. After the preparation of each group of formulas, the dynamic viscosity at 60°C and the kinematic viscosity at 135°C are tested first, and then other indicators are tested after passing the test. After several groups of test comparisons, trial production process and method adjustments, strict testing, and comparison with similar commercially available products, a resin composite modified high-viscosity asphalt with good storage stability, slow segregation, and non-degradation was finally successfully tested. , Viscosity and toughness are good, and the dynamic viscosity at 60°C is particularly prominent, exceeding 110,000 Pa*S, which is much higher than the 60,000-80,000 Pa*S of commercially available high-viscosity modified asphalt. In addition, it has good corrosion resistance.

The domestic granular stabilizer is selected, the function of the stabilizer can reduce the interfacial energy between the base asphalt, the modifier and the resin viscosity and toughness additive, and also promote the dispersion of the modifier phase, prevent the agglomeration of the modifier, and strengthen the interphase combination.

The sample holder 103 is placed in the electric heating jacket 102, and the electric heating jacket 102 wraps the outside of the sample holder 103, so that the temperature of the base asphalt in the sample holder 103 is not lower than 180°C. The sample holder 103 is heated by the heating jacket 102, so that the base asphalt in the sample holder 103 is in a heat preservation state.

The formula composition of resin composite modified high-viscosity asphalt is as follows: matrix asphalt accounts for 88.6%-91.6%, modifier accounts for 6.5%-8.5%, resin viscosity and toughness additive accounts for 1.8%-2.6%, and granular stabilizer accounts for 0.1%. ~0.3%.

In July 2016, composite modified high-viscosity asphalt was applied to the OGFC-13 permeable asphalt pavement of Dapeng Gene Bank in Dapeng New District, Shenzhen. 124 tons of high-viscosity asphalt. After the paving is completed, the compaction is good, the porosity is between 19-23%, the water permeability is good, and the rutting test of the dynamic stability of the mixture reaches 9026 times/mm, far exceeding the "Highway Asphalt Pavement Construction Technology" Specifications "not less than 3000 times / mm requirements. It has been open to traffic for a whole year, and there is no obvious rutting, water damage, etc., and the composite modified high-viscosity asphalt road performance is good.

Table 1

Using the above preparation method of resin composite modified high viscosity asphalt, the technical indicators of resin composite modified high viscosity asphalt prepared are shown in the table above.

In this embodiment, the sample holder 102 has an accommodating cavity for containing base asphalt, and the upper part of the accommodating cavity has an upper opening communicating with the accommodating cavity, and the base asphalt and other materials are placed in the inside the chamber.

The base asphalt is stirred by using a mixer. The mixer includes a machine body 100 with a stirring rod 105 arranged vertically downward, and the stirring rod 105 is driven by a motor to rotate. The lower end of the stirring rod 105 has a stirring head 110 , the body 100 has a lifting plate 101 arranged horizontally for placing the sample holder 102 , the lifting plate 101 is arranged horizontally, and the stirring head 110 is located above the lifting plate 101 .

When stirring is required, the lifting plate 101 drives the sample holder 102 to move upward until the stirring head 110 at the lower end of the stirring rod 105 is placed in the matrix asphalt in the accommodating cavity, so that the stirring rod 105 rotates to drive the stirring head 110 to stir the matrix asphalt . In practice, the stirring head 110 can be extended to a position 1/3 of the height from the bottom of the accommodating cavity.

Place the sample container 102 on the lifting plate 101, which is driven by the lifting plate 101 to move up and down. When stirring is required, the lifting plate 101 drives the sample container 102 to move upward until the stirring head 110 of the stirring rod 105 is placed in the accommodating cavity In the base asphalt, the stirring rod 105 rotates to drive the stirring head 110 to stir the base asphalt. The structure is simple, easy to operate, and the mixing efficiency is greatly improved.

The lifting plate 101 has an upper end surface arranged upwards, and an electric heating jacket 102 is placed on the upper end surface of the lifting plate 101. There is a heating chamber with an upper opening in the electric heating jacket 102. The inner wall of the heating chamber is covered with an electric heater. Even, in this way, the electric heater is heated by the thermocouple. The sample holder 102 is placed in the heating chamber, and the outer surface of the sample holder 102 abuts against the electric heater, so that the electric heater conducts heat to the inside of the sample holder 102, so that the matrix pitch in the sample holder 102 is in a heated state, which is convenient Stir, and the temperature of heating can also be controlled. In order to facilitate taking and placing the sample holder 102, the upper part of the sample holder 102 extends out of the heating chamber.

The upper surface of the lifting plate 101 is provided with a groove, and the inner wall of the groove is covered with a heat insulating layer, and the lower part of the electric heating sleeve 102 is embedded in the groove, so that the electric heating sleeve 102 can be placed on the lifting plate 101 firmly to avoid the lifting plate 101 In the process of moving, or in the process of stirring, problems such as inclination of the electric heating jacket 102 appear; in addition, the bottom of the electric heating jacket 102 is pressed against the heat insulation layer, which can play a role of heat insulation and protect the lifting plate 101. And avoid heat loss.

The upper part of the electric heating mantle 102 has a plurality of installation holes, which are arranged around the outer periphery of the upper opening of the heating chamber. The bottom of the installation hole is provided with a spring, and a movable positioning column 104 is arranged in the installation hole. The lower end of the positioning column 104 Against the spring, the upper end of the positioning post 104 extends out of the installation hole. In this way, the positioning post 104 is pressed downward, the spring shrinks, and the positioning post 104 moves downward. When the external force pressing on the positioning post 104 is eliminated, the positioning post 104 then resets upward under the action of the spring.

The outer periphery of the upper part of the sample holder 102 is provided with a downwardly arranged stepped ring, which is arranged around the outer periphery of the sample holder 102; when the sample holder 102 is placed in the heating chamber, the stepped ring abuts against the upper end of the positioning column 104. In this way, under the positioning of the movable positioning column 104, it can be ensured that the outer periphery of the sample holder 102 abuts against the electric heater on the inner wall of the heating chamber, and can play a role of shock absorption.

There is a gap between the bottom of the sample holder 102 and the bottom of the heating chamber, which can ensure the self-balancing of the sample holder 102, so that the outer periphery of the sample holder 102 is completely in contact with the heating plate, and it is convenient to take and place the sample holder 102.

The periphery of stirring head 110 is provided with a plurality of stirring blades 107, and a plurality of stirring blades 107 is arranged around the periphery of stirring head 110; Extending outward, the stirring blade 107 is curved in an arc shape, and the middle part of the stirring blade 107 protrudes and bends toward the rotation direction of the stirring rod 105;

When the stirring rod 105 rotates, since the cutting side is protruding and curved, the cutting side can be used to stir and shear the matrix asphalt to achieve a better mixing effect and more effectively reduce the resistance of the stirring rod 105 to rotate.

The stirring blade 107 has an upper end surface arranged upward, and along the rotation direction of the stirring rod 105 , the stirring blade 107 is arranged obliquely downward. The upper end surface of the stirring blade 107 is inclined, which can increase the stirring range when the stirring blade 107 rotates, and achieve a wider range of stirring.

The upper end surface of the stirring blade 107 is provided with a plurality of guide grooves 109 , and the plurality of guide grooves 109 are arranged at intervals along the direction from the inner end to the outer end of the stirring blade 107 , and the guide grooves 109 penetrate through both sides of the stirring blade 107 respectively. Like this, agitating blade 107 utilizes guide groove 109 to play the effect of backflow of base asphalt while stirring and shearing, reduces stirring resistance, and in addition, guide groove 109 is arranged at intervals, also can play the effect of further shearing and stirring on base asphalt , to achieve multi-directional stirring and shearing.

Along the rotation direction of the stirring rod 105, the guide groove 109 is arranged in an arc shape from the outside to the inside, and the depth of the guide groove 109 gradually decreases, and the width of the guide groove 109 gradually decreases. In this way, the further stirring and shearing of the base asphalt by the guide groove 109 can be increased.

The outer end of stirring blade 107 is outwardly extended with curved hook 108, and curved hook 108 is arc-shaped, and the middle part of curved hook 108 deviates from the direction of rotation of stirring shaft and protrudes in arc shape. In this way, during the stirring process of the stirring blade 107, since the bending direction of the bending hook 108 is opposite to that of the stirring blade 107, the base asphalt outside the scope of the stirring blade 107 can be further stirred and sheared by using the curved hook 108.

The stirring head 110 has an extension section extending downwards below the stirring blade 107 , and along the direction from top to bottom, the extension section is in the shape of a cone. Like this, when stirring bar 105 rotates, extension section can not form bigger rotational resistance, and extension section is cone-shaped, and at the central position of stirring bar 105, can form the center of rotating vortex, strengthen the stirring blade 107 outside the stirring range The base asphalt is crowded inward, which is more conducive to mixing.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. resin compounded is modified high-viscosity asphalt preparation method, which is characterized in that including following preparation step:

1) modifying agent, is weighed, resin glues toughness auxiliary agent and graininess stabilizer；

2), matrix pitch is heated to not less than 180 DEG C, until matrix pitch melts；The matrix pitch of molten is placed in Sheng In sample device, the sample holder is continued to heat, the temperature of sample holder is kept to be higher than 180 DEG C；

3), stir the matrix pitch in the sample holder, and during stirring, continuously put into modifying agent, matrix pitch with Modifying agent is mixed to form mixture；

4) after the mixture, is continuously stirred 30min~60min, modifying agent is swollen in matrix pitch；

5) after the completion of, the modifying agent is swollen in matrix pitch, the mixture is continuously stirred, puts into resin in the mixture Viscous toughness auxiliary agent；

6) graininess stabilizer, is put into the mixture of the sample holder, continuously stirs the mixture, and in the mistake of stirring The outer surface of the sample holder is carried out covering and heat insulating processing by Cheng Zhong；

7) mixture, persistently stirred in sample holder is not less than 2h, and after stopping stirring, the mixture in sample holder is stood not Lower than 2h, the modified high-viscosity asphalt of resin compounded is formed；

8) it, samples the modified high-viscosity asphalt of the resin compounded in sample holder to be detected, judges whether indices meet technology and want It asks, for use.

2. the modified high-viscosity asphalt preparation method of resin compounded as described in claim 1, which is characterized in that the modifying agent includes Star-like butadiene-styrene block copolymer and linear butadiene-styrene block copolymer；In the preparation step 3) In, linear butadiene-styrene block copolymer is first uniformly put into, then put into star-like butadiene-styrene block copolymer, and After the star-like butadiene-styrene block copolymer is launched, raising mixing speed range to 5000r/min~ Between 5500r/min.

3. the modified high-viscosity asphalt preparation method of resin compounded as claimed in claim 1 or 2, which is characterized in that in the preparation In step 3), sample holder is placed in blender, the blender has stirring-head；The stirring-head protrudes into the mixing of sample holder In object, the distance of bottom of the stirring-head apart from sample holder is less than the 1/3 of the depth of mixture.

4. the modified high-viscosity asphalt preparation method of resin compounded as claimed in claim 3, which is characterized in that put into the modification During agent, the mixing speed range of the stirring-head is between 2000r/min~2500r/min.

5. the modified high-viscosity asphalt preparation method of resin compounded as claimed in claim 3, which is characterized in that the resin glues toughness Auxiliary agent includes low-molecular-weight resin and high molecular weight resin；In the preparation step 5) in, when the modifying agent is in matrix pitch After the completion of middle swelling, low-molecular-weight resin is first put into mixture, then put into high molecular weight resin；Toughness is glued in investment resin During auxiliary agent, the mixing speed range of the stirring-head is between 2500r/min~3500r/min.

6. the modified high-viscosity asphalt preparation method of resin compounded as claimed in claim 3, which is characterized in that in the preparation step 2) in, the sample holder is placed in electric jacket, and the electric jacket is wrapped in the outside of the sample holder, is made in the sample holder Matrix pitch temperature be not less than 180 DEG C.

7. the modified high-viscosity asphalt preparation method of resin compounded as claimed in claim 1 or 2, which is characterized in that the resin is multiple Closing the formula composition of modified high-viscosity asphalt are as follows: the matrix pitch accounts for 88.6%~91.6%, and the modifying agent accounts for 6.5%~ 8.5%, the resin glues toughness auxiliary agent and accounts for 1.8%~2.6%, and the graininess stabilizer accounts for 0.1%~0.3%.

8. the modified high-viscosity asphalt preparation method of resin compounded as claimed in claim 6, which is characterized in that have in the sample holder There is the accommodating cavity for holding matrix pitch, the top of the accommodating cavity has the upper opening of connection accommodating cavity；The blender packet Body is included, the body has the stirring rod arranged vertically downward, and the lower end of the stirring rod has for stirring the accommodating The stirring-head of intracavitary matrix pitch, the body has lifter plate horizontally disposed and for placing sample holder, described Lifter plate is horizontally disposed, and the stirring-head is located at the top of the lifter plate；The lifter plate has upwardly disposed upper surface, The upper surface of the lifter plate is placed with the electric jacket, the heating chamber with upper opening in the electric jacket, the heating It is covered with electric heating piece on the inner sidewall of chamber, is provided with thermocouple on the electric heating piece；The sample holder is placed on the heating chamber In, the outer surface of the sample holder abuts the electric heating piece, and the heating chamber is extended on the top of the sample holder.

9. the modified high-viscosity asphalt preparation method of resin compounded as claimed in claim 8, which is characterized in that the electric jacket it is upper Portion has multiple mounting holes, and multiple mounting holes are looped around the periphery arrangement of the upper opening of the heating chamber, the installation The bottom in hole is provided with spring, and movable positioning column is provided in the mounting hole, and the lower end of the positioning column abuts spring, Extend outside the mounting hole upper end of the positioning column；The periphery on the top of the sample holder is provided with the step arranged downward Ring, the step ring are arranged around the periphery of the sample holder；When the sample holder is placed in the heating chamber, the step Ring is connected to the upper end of the positioning column.

10. the modified high-viscosity asphalt preparation method of resin compounded as claimed in claim 8, which is characterized in that the stirring-head Periphery is provided with multiple mixing blade, and multiple mixing blade are arranged around the periphery of the stirring-head；The mixing blade Inner end be connected to the periphery of the stirring-head, the outer end of the stirring-head extends outwardly away from the stirring-head, the stirring Blade is convexly curved, and the rotation direction of middle part towards the stirring rod of the mixing blade is convexly curved；The stirring Blade has towards the cutting side of the stirring rod rotation direction；The mixing blade has upwardly disposed upper surface, edge The rotation direction of the stirring rod, the mixing blade be downwardly inclined arrangement；The upper surface of the mixing blade is provided with more A guide groove, multiple guide grooves along the mixing blade inner end to outer end direction arranged for interval；The guide groove point The two sides of the mixing blade are not penetrated through.