CN115716725B - Anti-cracking asphalt mixture and preparation method thereof - Google Patents
Anti-cracking asphalt mixture and preparation method thereof Download PDFInfo
- Publication number
- CN115716725B CN115716725B CN202211428443.1A CN202211428443A CN115716725B CN 115716725 B CN115716725 B CN 115716725B CN 202211428443 A CN202211428443 A CN 202211428443A CN 115716725 B CN115716725 B CN 115716725B
- Authority
- CN
- China
- Prior art keywords
- filler
- parts
- prepare
- stirring
- mixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to an anti-cracking asphalt mixture and a preparation method thereof, belonging to the technical field of road engineering. The mixture comprises the following components in parts by weight: 7-10 parts of matrix asphalt, 60-70 parts of coarse aggregate, 25-35 parts of fine aggregate, 4.5-6 parts of impervious fiber filler, 3-5 parts of reinforcing node filler, 5-8 parts of mineral powder and 2-3 parts of asphalt oil. The impervious fiber filler and the reinforced node filler are compounded, an interactive network structure with certain elasticity and water absorption expansion performance is formed in the road surface after the pavement is paved, the deformation and cracking of the road surface are resisted, meanwhile, the water absorption expansion fills the gap of the road surface, the water seepage into the road surface is avoided, the dynamic water pressure and the slurry pumping are generated, and the severe deterioration of the road surface after the primary aging crack is prevented.
Description
Technical Field
The invention belongs to the technical field of road engineering, and particularly relates to an anti-cracking asphalt mixture and a preparation method thereof.
Background
Asphalt concrete is commonly called asphalt concrete, and is a mixture prepared by manually selecting aggregate and mixing the aggregate with road asphalt material in a certain proportion under the strictly controlled condition. The pavement paved by asphalt concrete has the advantages of smooth surface, comfortable running, wear resistance, low noise, short construction period, and convenient maintenance, is generally applied to expressways in the initial stage, and is gradually popularized to town road construction in the current stage.
The strength of the asphalt pavement is mainly expressed in two aspects, namely the cohesive force of cementing materials formed by asphalt and mineral powder and the internal friction resistance and locking force among aggregate particles. However, along with the aging of asphalt and the action of a large amount of driving loads, an asphalt pavement gradually generates primary cracks, the cracks are similar to tortoiseshell patterns, the blockiness is generally 20-50cm, the cracks are thinner, the driving safety is not greatly influenced, if the cracks are not repaired in time, the pavement can be rapidly deteriorated, and the main reason is that: under the condition of water, the water is filled in the primary cracks, the high-speed driving load acts, the primary cracks deform to generate dynamic water pressure, and the cracks are impacted and eroded, so that the cracks are accelerated to expand, when the netlike cracks are formed, obvious slurry pumping phenomenon is formed, the surface layer and the base layer are quickly flushed, pits are formed on the pavement, more water is further accumulated in the pits, and the pavement is severely damaged once the cracks appear; the prior art adopts a multilayer pavement structure, and has complex construction and higher cost.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention aims to provide an anti-cracking asphalt mixture and a preparation method thereof.
The aim of the invention can be achieved by the following technical scheme:
an anti-cracking asphalt mixture comprises the following components in parts by weight: 7-10 parts of matrix asphalt, 60-70 parts of coarse aggregate, 25-35 parts of fine aggregate, 4.5-6 parts of impervious fiber filler, 3-5 parts of reinforcing node filler, 5-8 parts of mineral powder and 2-3 parts of asphalt oil.
The impervious fibrous filler is prepared by the following method:
step A1: mixing hydroxyl silicone oil and toluene, placing the mixed solution in an ice-water bath, controlling the stirring speed to be 240-360rpm, slowly dropwise adding allyl chloride under the protection of nitrogen flow, stirring and reacting for 20-30min, introducing double bonds to the hydroxyl silicone oil for blocking, and performing reduced pressure rotary evaporation after the reaction to prepare a modified monomer;
further, the ratio of the amount of the hydroxy silicone oil, allyl chloride and toluene was 100g:6-8mL:30-50mL.
Step A2: adding a modified monomer, acrylic acid, allyl triethoxysilane and methyl methacrylate into a reaction kettle, stirring and mixing, heating to 66-75 ℃, controlling the stirring speed to be 120rpm, dissolving BPO with acetone, then dripping into the reaction kettle, controlling the reaction time to be 40-50min, and carrying out irregular addition reaction on raw materials under the initiation of the BPO to prepare a prepolymer;
further, the amount ratio of the modifying monomer, acrylic acid, allyltriethoxysilane, methyl methacrylate and BPO in the step A2 was 100g:10-15mL:2.7-3.2mL:5-8mL:0.22-0.28g.
Step A3: adding prepolymer, liquid styrene-butadiene rubber and cyclohexane into a reaction kettle for dilution and mixing, adding BPO solution for promoting free-end polymerization, banburying at 85-92 ℃ until the Mooney viscosity reaches 70, adding sulfur for high-speed stirring and quenching, simultaneously promoting crosslinking, and forcedly cooling to below 50 ℃ to prepare the anti-seepage rubber;
further, the usage ratio of prepolymer, liquid styrene-butadiene rubber, cyclohexane, BPO and sulfur in the step A3 is 100g:140-180g:80-130mL:0.1-0.15g:1.8-2.2g.
Step A4: adding the anti-seepage glue and basalt filaments into a glue spreader, extruding and coating the anti-seepage glue on the surfaces of the basalt filaments, and then sequentially drying, shaping, coiling, vulcanizing and cutting to prepare the anti-seepage fiber filler.
Further, the dosage ratio of the anti-seepage glue to the basalt filaments is 0.12-0.16g/g, and the length of the anti-seepage fiber filler is 8-15mm.
The preparation method of the reinforced node filler comprises the following steps: the silica fume is treated with a coupling agent to prepare a coupling filler, the agglomeration is reduced, the compatibility with an organic matrix is improved, then the coupling filler is blended with the impervious glue, extruded into a balling disk filled with calcium carbonate micropowder to be granulated into balls, and autoclaved and vulcanized to prepare the reinforced node filler.
Further, the dosage ratio of the coupling filler to the anti-seepage glue is 0.2-0.27g/g, and the particle size of the reinforcing node filler is 2-4mm.
The preparation method of the anti-cracking asphalt mixture specifically comprises the following steps:
step S1: adding coarse aggregate, fine aggregate, impervious fiber filler, reinforced node filler and mineral powder into a stirrer, and dry-mixing to prepare a dry material;
step S2: heating the matrix asphalt and the asphalt oil to 165-180 ℃ for stirring and mixing, and then slowly adding the dry materials for mixing in a stirring state to prepare the anti-cracking asphalt mixture.
The invention has the beneficial effects that:
1. the invention provides an asphalt mixture anti-cracking method, which is characterized in that an anti-seepage fiber filler and a reinforced node filler are compounded, a mixture is prepared, the surface layers of the anti-seepage fiber filler and the reinforced node filler are fused and bonded to form an interactive network structure which takes the anti-seepage fiber filler as a connecting material and the reinforced node filler as a steric hindrance material, the locking force between matrix aggregates is enhanced, and meanwhile, the asphalt mixture has certain elastic performance, and the structure is not damaged under slight deformation under heavy load, so that the anti-cracking effect is achieved;
2. the impervious fiber filler and the reinforced node filler are both prepared by compounding a self-made impervious rubber, and the self-made impervious rubber is a copolymer of a monomer containing a silica chain, acrylic acid, allyl triethoxysilane and styrene-butadiene rubber, the heat resistance of the impervious rubber is improved by introducing the silica chain, acrylic acid is introduced into the self-made impervious rubber for copolymerization in a reasonable proportion, the impervious rubber has certain water absorption performance, when water exists on a road, the impervious rubber absorbs water and slightly expands, the water absorption performance of the impervious rubber and the reinforced node filler fills a gap of the road, and the water is prevented from penetrating into the road to generate dynamic water pressure and pumping.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The embodiment prepares the anti-seepage glue, and prepares the anti-seepage fiber filler and the reinforced node filler from the anti-seepage glue, and the specific implementation process is as follows:
1. preparation of anti-seepage adhesive
a1, commercially available hydroxy silicone oil (viscosity: 30mm 2 Mixing/s with hydroxyl content of about 8 percent) and toluene for 5 minutes under stirring at 500rpm, transferring the mixed solution into a reaction kettle, placing the reaction kettle in an ice-water bath environment, controlling the stirring speed to be 240rpm, introducing flowing nitrogen into the reactor through a guide pipe for protection, arranging calcium oxide at the air outlet end to absorb tail gas, slowly dropwise adding allyl chloride into the reaction kettle at 5mL/min, keeping stirring for reaction for 20 minutes, reducing the pressure to 1kPa after the reaction, and steaming for 10 minutes in a rotary way to prepare the modified monomer, wherein the dosage ratio of hydroxyl silicone oil, allyl chloride and toluene is controlled to be 100g:6mL:30mL;
a2, adding the modified monomer, the acrylic acid, the allyl triethoxysilane and the methyl methacrylate into a reaction kettle, stirring and mixing, heating to 66 ℃, controlling the stirring speed to be 120rpm, dissolving the BPO with acetone, then dripping the dissolved BPO into the reaction kettle, and controlling the reaction time to be 50min to prepare a prepolymer, wherein the dosage ratio of the modified monomer, the acrylic acid, the allyl triethoxysilane, the methyl methacrylate and the BPO is 100g:10mL:3.2mL:5mL:0.22g;
a3, adding the prepolymer, the liquid styrene-butadiene rubber and the cyclohexane into a reaction kettle for dilution and mixing, adding the solution of the BPO, banburying at the temperature of 85 ℃ until the Mooney viscosity reaches 70, adding the sulfur, stirring at a high speed at 1000rpm, and forcedly cooling to below 50 ℃ through a water jacket to prepare the anti-seepage rubber, wherein the dosage ratio of the prepolymer, the liquid styrene-butadiene rubber, the cyclohexane, the BPO and the sulfur is 100g:140g:80mL:0.1g:1.8g.
2. Preparation of impervious fibrous filler
b1, feeding basalt filaments into a feeding port of a gluing machine, feeding anti-seepage glue into a feed bin of the gluing machine, preserving heat at 45 ℃, extruding the anti-seepage glue by the gluing machine to coat the surfaces of the basalt filaments, and controlling the gluing amount to be 0.12g/g to prepare gluing filaments;
and b2, passing the glue-coated filaments through a drying line, drying for 8min by adopting hot air at 40 ℃ for shaping, winding, then feeding into a vulcanizing kettle, autoclaved vulcanizing for 3h, taking out and cutting into short fibers with the length of 8mm, and preparing the impervious fiber filler.
3. Preparation of reinforced node filler
C1, stirring and dispersing the silica fume in an ethanol solution with the concentration of 20% at 800rpm, adding a coupling agent KH550 with the mass of 2% of the silica fume, standing for 5 hours, filtering out the silica fume, drying, and scattering to prepare a coupling filler;
and c2, blending the coupling filler and the anti-seepage glue according to 0.2g/g, extruding through an extruder, granulating the granules into balls in a ball forming tray filled with calcium carbonate micro powder, transferring the balls into a vulcanizing kettle, autoclaved vulcanizing for 3 hours, screening out the balls with the particle size of 2-4mm, and preparing the reinforced node filler.
Example 2
The embodiment prepares the anti-seepage glue, and prepares the anti-seepage fiber filler and the reinforced node filler from the anti-seepage glue, and the specific implementation process is as follows:
1. preparation of anti-seepage adhesive
a1, commercially available hydroxy silicone oil (adhesive)Degree of 30mm 2 Mixing/s with hydroxyl content of about 8 percent) and toluene for 5 minutes under stirring at 500rpm, transferring the mixed solution into a reaction kettle, placing the reaction kettle in an ice-water bath environment, controlling the stirring speed to be 300rpm, introducing flowing nitrogen into the reactor through a guide pipe for protection, arranging calcium oxide at the air outlet end to absorb tail gas, slowly dropwise adding allyl chloride into the reaction kettle at 5mL/min, keeping stirring for reaction for 25 minutes, reducing the pressure to 1kPa after the reaction, and steaming for 10 minutes in a rotary way to prepare the modified monomer, wherein the dosage ratio of hydroxyl silicone oil, allyl chloride and toluene is controlled to be 100g:7mL:40mL;
a2, adding the modified monomer, the acrylic acid, the allyl triethoxysilane and the methyl methacrylate into a reaction kettle, stirring and mixing, heating to 72 ℃, controlling the stirring speed to be 120rpm, dissolving the BPO with acetone, then dripping the dissolved BPO into the reaction kettle, and controlling the reaction time to be 45min to prepare a prepolymer, wherein the dosage ratio of the modified monomer, the acrylic acid, the allyl triethoxysilane, the methyl methacrylate and the BPO is 100g:13mL:2.9mL:7mL:0.25g;
a3, adding the prepolymer, the liquid styrene-butadiene rubber and the cyclohexane into a reaction kettle for dilution and mixing, adding the solution of the BPO, banburying at 88 ℃ until the Mooney viscosity reaches 70, adding the sulfur, stirring at a high speed at 1000rpm, and forcibly cooling to below 50 ℃ through a water jacket to prepare the anti-seepage rubber, wherein the dosage ratio of the prepolymer, the liquid styrene-butadiene rubber, the cyclohexane, the BPO and the sulfur is 100g:160g:100mL:0.13g:2.1g.
2. Preparation of impervious fibrous filler
b1, feeding basalt filaments into a feeding port of a gluing machine, feeding anti-seepage glue into a feed bin of the gluing machine, preserving heat at 45 ℃, extruding the anti-seepage glue by the gluing machine to coat the surfaces of the basalt filaments, and controlling the gluing amount to be 0.15g/g to prepare gluing filaments;
and b2, passing the glue-coated filaments through a drying line, drying for 10min by adopting hot air at 40 ℃ for shaping, winding, then feeding into a vulcanizing kettle, autoclaved vulcanizing for 3h, taking out and cutting into short fibers with the length of 12mm, and preparing the impervious fiber filler.
3. Preparation of reinforced node filler
C1, stirring and dispersing the silica fume in an ethanol solution with the concentration of 20% at 800rpm, adding a coupling agent KH550 with the mass of 2% of the silica fume, standing for 5 hours, filtering out the silica fume, drying, and scattering to prepare a coupling filler;
and c2, blending the coupling filler and the anti-seepage glue according to 0.24g/g, extruding through an extruder, granulating the granules into balls in a ball forming tray filled with calcium carbonate micro powder, transferring the balls into a vulcanizing kettle, autoclaved vulcanizing for 3 hours, screening out the balls with the particle size of 2-4mm, and preparing the reinforced node filler.
Example 3
The embodiment prepares the anti-seepage glue, and prepares the anti-seepage fiber filler and the reinforced node filler from the anti-seepage glue, and the specific implementation process is as follows:
1. preparation of anti-seepage adhesive
a1, commercially available hydroxy silicone oil (viscosity: 30mm 2 Mixing/s with hydroxyl content of about 8 percent) and toluene for 5 minutes under stirring at 500rpm, transferring the mixed solution into a reaction kettle, placing the reaction kettle in an ice-water bath environment, controlling the stirring speed to be 360rpm, introducing flowing nitrogen into the reactor through a guide pipe for protection, arranging calcium oxide at the air outlet end to absorb tail gas, slowly dropwise adding allyl chloride into the reaction kettle at 5mL/min, keeping stirring for reaction for 30 minutes, reducing the pressure to 1kPa after the reaction, and steaming for 10 minutes in a rotary way to prepare the modified monomer, wherein the dosage ratio of hydroxyl silicone oil, allyl chloride and toluene is controlled to be 100g:8mL:50mL;
a2, adding the modified monomer, the acrylic acid, the allyl triethoxysilane and the methyl methacrylate into a reaction kettle, stirring and mixing, heating to 75 ℃, controlling the stirring speed to be 120rpm, dissolving the BPO with acetone, then dripping the dissolved BPO into the reaction kettle, and controlling the reaction time to be 40min to prepare a prepolymer, wherein the dosage ratio of the modified monomer, the acrylic acid, the allyl triethoxysilane, the methyl methacrylate and the BPO is 100g:15mL:2.7mL:8mL:0.28g;
a3, adding the prepolymer, the liquid styrene-butadiene rubber and the cyclohexane into a reaction kettle for dilution and mixing, adding the solution of the BPO, banburying at 92 ℃ until the Mooney viscosity reaches 70, adding the sulfur, stirring at a high speed at 1000rpm, and forcibly cooling to below 50 ℃ through a water jacket to prepare the anti-seepage rubber, wherein the dosage ratio of the prepolymer, the liquid styrene-butadiene rubber, the cyclohexane, the BPO and the sulfur is 100g:180g:130mL:0.15g:2.2g.
2. Preparation of impervious fibrous filler
b1, feeding basalt filaments into a feeding port of a gluing machine, feeding anti-seepage glue into a feed bin of the gluing machine, preserving heat at 45 ℃, extruding the anti-seepage glue by the gluing machine to coat the surfaces of the basalt filaments, and controlling the gluing amount to be 0.16g/g to prepare gluing filaments;
and b2, passing the glue-coated filaments through a drying line, drying for 12min by adopting hot air at 40 ℃ for shaping, winding, then feeding into a vulcanizing kettle, autoclaved vulcanizing for 3.2h, taking out and cutting into short fibers with the length of 15mm, and preparing the impervious fiber filler.
3. Preparation of reinforced node filler
C1, stirring and dispersing the silica fume in an ethanol solution with the concentration of 20% at 800rpm, adding a coupling agent KH550 with the mass of 2% of the silica fume, standing for 5 hours, filtering out the silica fume, drying, and scattering to prepare a coupling filler;
and c2, blending the coupling filler and the anti-seepage glue according to 0.27g/g, extruding through an extruder, granulating the granules into balls in a ball forming tray filled with calcium carbonate micro powder, transferring the balls into a vulcanizing kettle, autoclaved vulcanizing for 3.5h, and screening out the balls with the particle size of 2-4mm to prepare the reinforced node filler.
Example 4
The raw materials prepared in the example 1 are used for preparing the anti-cracking asphalt mixture, and the specific implementation process is as follows:
s1, batching: weighing the following raw materials in parts by weight: 7 parts of matrix asphalt (70 #), 60 parts of coarse aggregate (10-30 mm continuous graded broken stone), 35 parts of fine aggregate (natural sand, the mud content of which is less than 2%), 4.5 parts of impervious fiber filler, 5 parts of reinforced node filler, 5 parts of mineral powder (S95 grade mineral powder) and 2 parts of asphalt oil;
s2, dry mixing: adding coarse aggregate, fine aggregate, impervious fiber filler, reinforced node filler and mineral powder into a stirrer, and dry-mixing to prepare a dry material;
s3, blending: heating the matrix asphalt and the asphalt oil to 165 ℃ for stirring and mixing, and then slowly adding the dry materials for mixing in a stirring state to prepare the anti-cracking asphalt mixture.
Example 5
The raw materials prepared in the example 2 are used for preparing the anti-cracking asphalt mixture, and the concrete implementation process is as follows:
s1, batching: weighing the following raw materials in parts by weight: 9 parts of matrix asphalt (70#) and 63 parts of coarse aggregate (10-30 mm continuous graded broken stone), 32 parts of fine aggregate (natural sand, the mud content of which is less than 2%), 5 parts of impervious fiber filler, 4 parts of reinforcing node filler, 7 parts of mineral powder (S95 grade mineral powder) and 3 parts of asphalt oil;
s2, dry mixing: adding coarse aggregate, fine aggregate, impervious fiber filler, reinforced node filler and mineral powder into a stirrer, and dry-mixing to prepare a dry material;
s3, blending: heating the matrix asphalt and the asphalt oil to 170 ℃ for stirring and mixing, and then slowly adding the dry materials for mixing in a stirring state to prepare the anti-cracking asphalt mixture.
Example 6
The raw materials prepared in the example 3 are used for preparing the anti-cracking asphalt mixture, and the specific implementation process is as follows:
s1, batching: weighing the following raw materials in parts by weight: 10 parts of matrix asphalt (70#), 70 parts of coarse aggregate (10-30 mm continuous graded broken stone), 25 parts of fine aggregate (natural sand, the mud content of which is less than 2%), 6 parts of impervious fiber filler, 3 parts of reinforcing node filler, 8 parts of mineral powder (S95 grade mineral powder) and 3 parts of asphalt oil;
s2, dry mixing: adding coarse aggregate, fine aggregate, impervious fiber filler, reinforced node filler and mineral powder into a stirrer, and dry-mixing to prepare a dry material;
s3, blending: heating the matrix asphalt and the asphalt oil to 180 ℃ for stirring and mixing, and then slowly adding the dry materials for mixing in a stirring state to prepare the anti-cracking asphalt mixture.
The mixtures prepared in examples 4-6 were sampled and tested for performance with reference to the JTG E20-2011 and JTGF40-2004 standards, and the specific test data are shown in Table 1:
TABLE 1
As can be seen from the data in Table 1, the pavement paved by the anti-cracking asphalt mixture prepared by the invention has higher strength, greatly delays the cracking time and effectively prolongs the service life of the pavement.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (7)
1. An anti-cracking asphalt mixture is characterized by comprising the following components in parts by weight: 7-10 parts of matrix asphalt, 60-70 parts of coarse aggregate, 25-35 parts of fine aggregate, 4.5-6 parts of impervious fiber filler, 3-5 parts of reinforced node filler, 5-8 parts of mineral powder and 2-3 parts of asphalt oil;
the impervious fibrous filler is prepared by the following method:
step A1: mixing hydroxyl silicone oil and toluene, placing in an ice-water bath, controlling the stirring speed to be 240-360rpm, dropwise adding allyl chloride under the protection of nitrogen flow, stirring for reaction for 20-30min, and performing reduced pressure rotary evaporation after the reaction to prepare a modified monomer;
step A2: adding a modified monomer, acrylic acid, allyl triethoxysilane and methyl methacrylate into a reaction kettle, stirring and mixing, heating to 66-75 ℃, controlling the stirring speed to be 120rpm, dissolving BPO with acetone, then dripping into the reaction kettle, and controlling the reaction time to be 40-50min to prepare a prepolymer;
step A3: adding prepolymer, liquid styrene-butadiene rubber and cyclohexane into a reaction kettle, mixing, adding BPO solution, banburying at 85-92 ℃ until the Mooney viscosity reaches 70, adding sulfur, stirring, and cooling to below 50 ℃ to prepare the anti-seepage adhesive;
step A4: adding the anti-seepage glue and basalt filaments into a glue spreader, extruding and coating the anti-seepage glue on the surfaces of the basalt filaments, and then sequentially drying, shaping, coiling, vulcanizing and cutting to prepare anti-seepage fiber fillers;
the preparation method of the reinforced node filler comprises the following steps: and (3) treating the silica fume with a coupling agent to prepare a coupling filler, blending the coupling filler with the impervious glue, extruding the mixture into a balling disk containing calcium carbonate micropowder for balling, and then performing autoclaved vulcanization to prepare the reinforced node filler.
2. The anti-cracking asphalt mixture according to claim 1, wherein the ratio of the hydroxyl silicone oil to the allyl chloride to the toluene is 100g:6-8mL:30-50mL.
3. The anti-cracking asphalt mixture according to claim 2, wherein the dosage ratio of the modified monomer, the acrylic acid, the allyl triethoxysilane, the methyl methacrylate and the BPO in the step A2 is 100g:10-15mL:2.7-3.2mL:5-8mL:0.22-0.28g.
4. The crack resistant asphalt mixture according to claim 3, wherein the prepolymer, the liquid styrene-butadiene rubber, the cyclohexane, the BPO and the sulfur in the step A3 are used in an amount ratio of 100g:140-180g:80-130mL:0.1-0.15g:1.8-2.2g.
5. An anti-cracking asphalt mixture according to claim 4, wherein the dosage ratio of the anti-penetration gel to basalt filaments is 0.12-0.16g/g, and the length of the anti-penetration fiber filler is 8-15mm.
6. The anti-cracking asphalt mixture according to claim 1, wherein the dosage ratio of the coupling filler to the anti-seepage adhesive is 0.2-0.27g/g, and the particle size of the reinforcing node filler is 2-4mm.
7. The method for preparing the anti-cracking asphalt mixture according to claim 1, which is characterized by comprising the following steps:
step S1: adding coarse aggregate, fine aggregate, impervious fiber filler, reinforced node filler and mineral powder into a stirrer, and dry-mixing to prepare a dry material;
step S2: heating the matrix asphalt and the asphalt oil to 165-180 ℃ for stirring and mixing, and then slowly adding the dry materials for mixing in a stirring state to prepare the anti-cracking asphalt mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211428443.1A CN115716725B (en) | 2022-11-15 | 2022-11-15 | Anti-cracking asphalt mixture and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211428443.1A CN115716725B (en) | 2022-11-15 | 2022-11-15 | Anti-cracking asphalt mixture and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115716725A CN115716725A (en) | 2023-02-28 |
| CN115716725B true CN115716725B (en) | 2023-10-20 |
Family
ID=85255141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211428443.1A Active CN115716725B (en) | 2022-11-15 | 2022-11-15 | Anti-cracking asphalt mixture and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115716725B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116606090B (en) * | 2023-05-25 | 2023-11-24 | 苏交科集团股份有限公司 | Low-temperature modified asphalt concrete and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016182177A1 (en) * | 2015-05-14 | 2016-11-17 | 주식회사 지케이기술연구소 | Asphalt concrete composition having waterproof function and construction method using same |
| CN111433275A (en) * | 2018-02-01 | 2020-07-17 | 美国陶氏有机硅公司 | Composition, polymer composite article formed therewith, and method of making same |
| CN111847988A (en) * | 2020-08-05 | 2020-10-30 | 胡剑安 | Waterproof high-strength basalt fiber asphalt mixture and preparation method thereof |
| CN113264749A (en) * | 2021-05-28 | 2021-08-17 | 上海宝新特种沥青混凝土有限公司 | Anti-crack asphalt mixture and preparation method thereof |
| CN114315232A (en) * | 2021-12-22 | 2022-04-12 | 苏州东振路桥工程有限公司 | A kind of permeable asphalt mixture and preparation method thereof |
| CN115161913A (en) * | 2022-08-19 | 2022-10-11 | 清华大学 | Fiber sizing method, coated fibers and fiber-reinforced composites |
-
2022
- 2022-11-15 CN CN202211428443.1A patent/CN115716725B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016182177A1 (en) * | 2015-05-14 | 2016-11-17 | 주식회사 지케이기술연구소 | Asphalt concrete composition having waterproof function and construction method using same |
| CN111433275A (en) * | 2018-02-01 | 2020-07-17 | 美国陶氏有机硅公司 | Composition, polymer composite article formed therewith, and method of making same |
| CN111847988A (en) * | 2020-08-05 | 2020-10-30 | 胡剑安 | Waterproof high-strength basalt fiber asphalt mixture and preparation method thereof |
| CN113264749A (en) * | 2021-05-28 | 2021-08-17 | 上海宝新特种沥青混凝土有限公司 | Anti-crack asphalt mixture and preparation method thereof |
| CN114315232A (en) * | 2021-12-22 | 2022-04-12 | 苏州东振路桥工程有限公司 | A kind of permeable asphalt mixture and preparation method thereof |
| CN115161913A (en) * | 2022-08-19 | 2022-10-11 | 清华大学 | Fiber sizing method, coated fibers and fiber-reinforced composites |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115716725A (en) | 2023-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109722046B (en) | Colored emulsified asphalt, preparation method thereof and colored micro-surfacing | |
| CN109852085B (en) | High-viscosity modified asphalt and preparation method thereof | |
| De et al. | The effect of grass fiber filler on curing characteristics and mechanical properties of natural rubber | |
| CN115716725B (en) | Anti-cracking asphalt mixture and preparation method thereof | |
| KR102020594B1 (en) | Recycled cold asphalt concrete mixture and Construction thereof | |
| WO2012103691A1 (en) | Road asphalt modified by composite modifier and preparation method thereof | |
| CN113801488B (en) | Asphalt-based concentrated sealing fabric, preparation method thereof and sand-containing fog seal | |
| CN111747683A (en) | Hot-mix-in-plant asphalt mixture and preparation method thereof | |
| CN101456700B (en) | Method for preparing composite modified rubber asphalt mixture | |
| KR102005942B1 (en) | Room temperature type modified asphalt composition for emergency repair and manufacturing thereof | |
| KR102438241B1 (en) | Room temperature emulsified asphalt mixture and its manufacturing method | |
| CN115304926A (en) | Modified asphalt and asphalt concrete | |
| WO2024016442A1 (en) | Graphene modified asphalt and preparation method therefor | |
| CN114804722A (en) | High-performance rubber asphalt mixture based on soft and hard asphalt compounding, and preparation method and application thereof | |
| CN113698138A (en) | high-RAP-content regeneration mixture and preparation method and application thereof | |
| CN116606088B (en) | Ultraviolet-resistant asphalt mastic macadam mixture and preparation method thereof | |
| CN113817333A (en) | High-viscosity modified asphalt, preparation method thereof and OGFC (one glass batch fiber reinforced plastic) asphalt mixture | |
| CN109133727B (en) | A kind of bituminous concrete and preparation method thereof | |
| JP7285422B1 (en) | Top layer composite material for composite surface layer of tunnel and its manufacturing method | |
| CN117229646A (en) | Modified asphalt material and preparation method thereof | |
| CN111995296A (en) | Self-compacting asphalt mixture and preparation method thereof | |
| CN116694092A (en) | Modified asphalt doped with modified fiber and its preparation method and application | |
| KR101676293B1 (en) | Synthetic latex based acrylate for concrete confusion and producing method thereof | |
| CN116426135A (en) | A kind of composite modified high-viscosity asphalt and preparation method thereof | |
| CN108191299B (en) | Rubber-asphalt mixture and the preparation method and application thereof based on road engineering stress absorbing layer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230920 Address after: 272400 Road South, 50 meters west of the intersection of Mining Area Road and Jidong Line in Liangbaosi Town, Jiaxiang County, Jining City, Shandong Province Applicant after: Jining Jiasheng New Building Materials Co.,Ltd. Address before: 1-1-505-1, Xindu building, southwest of the intersection of Weijin road and wandezhuang street, Nankai District, Tianjin Applicant before: HUIJIAWANG (TIANJIN) TECHNOLOGY CO.,LTD. Effective date of registration: 20230920 Address after: 1-1-505-1, Xindu building, southwest of the intersection of Weijin road and wandezhuang street, Nankai District, Tianjin Applicant after: HUIJIAWANG (TIANJIN) TECHNOLOGY CO.,LTD. Address before: Building 78, Fengning Community, Fengning Sub-district Office, Wuhua District, Kunming City, Yunnan Province, 650000 Applicant before: Kunming Jiangyu Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |