CN115322584A - High-viscosity modified emulsified asphalt binder and preparation method and application thereof - Google Patents

High-viscosity modified emulsified asphalt binder and preparation method and application thereof Download PDF

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CN115322584A
CN115322584A CN202211202763.5A CN202211202763A CN115322584A CN 115322584 A CN115322584 A CN 115322584A CN 202211202763 A CN202211202763 A CN 202211202763A CN 115322584 A CN115322584 A CN 115322584A
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emulsified asphalt
percent
binder
layer
modified emulsified
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CN115322584B (en
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张志祥
金光来
臧国帅
蔡文龙
李一鹤
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Jiangsu Sinoroad Engineering Research Institute Co ltd
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Jiangsu Sinoroad Engineering Research Institute Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • C08L95/005—Aqueous compositions, e.g. emulsions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
    • E01C7/353—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them with exclusively bituminous binders; Aggregate, fillers or other additives for application on or in the surface of toppings with exclusively bituminous binders, e.g. for roughening or clearing
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2419/00—Characterised by the use of rubbers not provided for in groups C08J2407/00 - C08J2417/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2453/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2461/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2461/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08J2461/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/16—Halogen-containing compounds
    • C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/20—Recycled plastic
    • C08L2207/24—Recycled plastic recycling of old tyres and caoutchouc and addition of caoutchouc particles
    • 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

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  • Organic Chemistry (AREA)
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Abstract

The invention belongs to the technical field of highway construction, and particularly relates to a high-viscosity modified emulsified asphalt binder and a preparation method and application thereof. The binder comprises the following components in parts by mass: 45 to 55 percent of matrix asphalt; 1 to 2 percent of emulsifier; 40 to 45 percent of water; 1 to 2 percent of hydrochloric acid; 0.5 to 1 percent of stabilizer; 1 to 3 percent of SBS modifier; 6 to 10 percent of high-viscosity modifier. The waste rubber powder is used as the high-viscosity modifier, and sulfur cross-linking bonds contained in a net structure of the waste rubber powder mainly comprise monosulfur, disulfur, polysulfide and annular sulfur cross-linking bonds, so that a stable compatible system is formed with the matrix asphalt, and preparation is made for compatibility required by adding the SBS modifier. The modified emulsified asphalt binder can be prepared by modifying and emulsifying the asphalt, so that the performance of the emulsified asphalt is obviously improved, the stability is enhanced, the long-distance transportation and storage are convenient, and meanwhile, as most of the waste rubber powder comes from waste tires, the invention ensures that the waste rubber powder is recycled, thereby reducing the manufacturing cost and the environmental pollution. Greatly reduces the production cost of the modified asphalt.

Description

High-viscosity modified emulsified asphalt binder and preparation method and application thereof
Technical Field
The invention belongs to the technical field of highway construction, and particularly relates to a high-viscosity modified emulsified asphalt binder and a preparation method and application thereof.
Background
The conventional preventive maintenance technology for the water seepage and the skid resistance of the asphalt pavement in China at present comprises the following steps: including slurry seal, chip seal or micro-surfacing. These technologies for preventive maintenance of road surfaces, although able to meet the basic functional requirements, have the following drawbacks: the interlayer adhesion is insufficient, so that the flake falling is easily caused, and the durability is poor.
In the prior art, the adhesive layer has the functions of sealing gaps and ensuring effective bonding between an upper layer and a lower layer in an asphalt pavement structure, and has important significance for ensuring common stress of the pavement structure and prolonging the service life of the asphalt pavement. However, the most widely used adhesive layer material for roads in China at present is still common emulsified asphalt or modified emulsified asphalt, and most of the materials adopt No. 70 matrix asphalt, and the material has the characteristics of easy production, stable quality and mature technology, but often has insufficient adhesive property, so that slippage and falling between layers are generated. Meanwhile, the tires of construction vehicles are easy to bond in the construction process, so that not only is the bonding material wasted, but also the bonding strength and the waterproof effect between different surface layers are influenced, the durability of the road surface is reduced, and the overall quality of the road surface structure is influenced. It has become a common phenomenon that the whole quality of the asphalt pavement structure is affected because the adhesive layer is damaged due to the insufficient performance of the material and the characteristic that the emulsified asphalt is easy to adhere to the wheel. Aiming at the problems, the conventional solutions at present are to supplement viscous layer oil, spread the viscous layer oil one day in advance or adopt construction integration, but the methods inevitably have the problems of increasing construction procedures, causing material waste, increasing construction cost, prolonging construction time and the like.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
The invention provides a high-viscosity modified emulsified asphalt binder, which is used for interlayer bonding of asphalt pavements and improves interlayer bonding force and bonding durability.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-viscosity modified emulsified asphalt binder comprises the following components in percentage by mass: 45 to 55 percent of matrix asphalt; 1 to 2 percent of emulsifier; 40 to 45 percent of water; 1 to 2 percent of hydrochloric acid; 0.5 to 1 percent of stabilizer; 1 to 3 percent of SBS modifier; 6 to 10 percent of high-viscosity modifier.
Preferably, the asphalt is No. 70 base asphalt. The softening point of No. 70 matrix asphalt is 46 ℃, compared with other types of asphalt, the softening point is moderate, and the asphalt just presents a flowing state when being heated to 130-150 ℃.
Preferably, the emulsifier is a fast-setting fatty amine cationic emulsifier, specifically MQ65 type emulsifier, and is in a liquid state at room temperature. After the emulsifier is added into the aqueous solution, the hydrophilic group of the emulsifier is combined with water after being added into the aqueous solution due to the extremely strong water-melting property of the hydrophilic group; the oleophilic group is a hydrocarbon group, and after the oleophilic group is added into the water solution, a film is formed on the water surface due to the hydrophobic property of the oleophilic group which is far away from water. When the asphalt solution is sheared at high speed, the oleophilic group is combined with asphalt, and the hydrophilic group is combined with water, so that the surface tension of the water is reduced, and the emulsified asphalt is formed.
Preferably, hydrochloric acid is used to adjust the pH of the emulsion. The emulsifier is matched with a quick-setting aliphatic amine cationic emulsifier for use, the dispersing effect of the emulsifier can be improved under an acidic condition, so that the emulsified asphalt is more exquisite, the dissolution of aromatic hydrocarbon and inorganic salt in a stabilizer is promoted, and the adhesive property of the adhesive is improved.
Preferably, the stabilizer includes an inorganic stabilizer and an organic stabilizer, and the inorganic stabilizer and the organic stabilizer are mixed in a ratio of 1:1, and the components are compounded according to the mass ratio of 1. Inorganic stabilizers include CaCl 2 、NaSO 4 And tourmaline, caCl 2 、NaSO 4 The mass ratio of the tourmaline to the tourmaline is 2:2:1. wherein CaCl 2 And NaSO 4 The density of the water phase can be increased, the double electric layer effect around emulsion particles is enhanced, mutual repulsion among the particles is improved, and the stability of the emulsion is improved; the tourmaline can generate potential difference in the process of spreading the binder, so that water molecules and oxygen molecules in the binder are ionized to generate corresponding negative ions, the binder is more uniformly adsorbed and adhered on the surfaces of the fibers and the crushed stones, and the overall stability of the binder is improved. The invention simultaneously uses CaCl 2 、NaSO 4 And tourmaline improve the bonding stability of the bonding agent in the laying process. The organic matter stabilizer comprises phenolic resin and epoxy resin, wherein the mass ratio of the phenolic resin to the epoxy resin is 1:0.8. the organic matter stabilizer has good thermal dissolution and condensation effect, and the emulsified asphalt has good high and low temperature performance after the organic matter stabilizer is added. According to the invention, the inorganic stabilizer and the organic stabilizer are compounded, so that the crosslinking reaction of asphalt and the modifier can be promoted and initiated, a three-dimensional space network structure is formed, and the storage stability and the bonding stability of the binder are improved. The construction vehicle tire is prevented from being bonded in the construction process, the bonding strength and the waterproof effect between different surface layers are improved, and the durability of the road surface is improved.
Preferably, the SBS modifier is in a linear structure and small in molecular weight, the main component of the SBS modifier is butadiene, the SBS modifier is easy to emulsify compared with common star-shaped and linear SBS modifiers, and after the SBS modifier is added, a net structure is formed between the SBS phase and the asphalt phase, so that the high-low temperature and crack resistance of the SBS modifier are improved.
Preferably, the high-viscosity modifier is waste rubber powder, and after the high-viscosity modifier is softened by heating, the waste rubber powder is fully filled in gaps among the aggregates to limit the relative sliding of the aggregates, so that the pavement structure is more stable; and the waste rubber powder has stronger stretchability in a micro-crystallization area in the blending process, and the stretched fibrous high-viscosity agent is mutually wound to form a stable net-shaped structure. The invention ensures that the waste rubber powder as a high-viscosity modifier is well dissolved in the matrix asphalt to form a stable compatible system, and then the modified matrix asphalt is emulsified by doping the soap liquid, so that the emulsifying property of the asphalt can be obviously improved, the stability of the adhesive is increased, the waste rubber powder is effectively utilized, and the production cost of the adhesive is greatly reduced.
The second purpose of the invention is to provide a preparation method of the modified emulsified asphalt binder, so as to solve the problem of insufficient interlayer binding power, thereby improving the structural integrity of the pavement and prolonging the service life of the pavement.
A preparation method of a high-viscosity modified emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH of the soap solution to 2-4; according to the invention, the stabilizer is used for preparing the soap liquid, so that the stability of the emulsion is improved, the product is convenient to store for a long time, and the added auxiliary agent is not separated. Then the modified asphalt is added into asphalt to prevent the premature demulsification of the high-viscosity modified emulsified asphalt binder.
(2) Heating the substrate asphalt to 130-150 ℃, and then adding an SBS modifier and a high-viscosity modifier; the temperature is too low to be beneficial to the formation of the product, the matrix asphalt can not be completely dissolved, and the performance aging of the product can be accelerated by too high temperature, so the temperature interval is selected. The invention adds the high-viscosity modifier in the matrix asphalt to improve the viscosity index of the matrix asphalt and ensure that the viscosity of the matrix asphalt meets the high-viscosity requirement of the asphalt, and then adds the SBS modifier to improve the indexes of the asphalt, such as softening point, low temperature ductility and the like and ensure that the asphalt has improved anti-rutting capability; on the basis of the high-elasticity and high-viscosity asphalt which is preliminarily formed, the purpose of preparing the high-viscosity modified emulsified asphalt binder is achieved by adding soap solution.
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing and grinding for 1 to 2h by using a colloid mill to obtain the modified emulsified asphalt binder. In order to mix evenly, the modified emulsified asphalt binder is prepared by firstly stirring slowly after the addition, then stirring quickly and then stirring slowly. If the time is too short, the grinding is not easy to be thorough, and if the time is too long, the properties of the grinding are damaged due to high-speed shearing.
The third purpose of the invention is to provide an application method of the high-viscosity modified emulsified asphalt binder, and the modified emulsified asphalt binder is used for paving fine surface parts of a quick-curing low-noise road surface. Aims to solve the problems of long curing time, poor durability and high road noise after curing in the preventive technology in the prior art.
In order to achieve the purpose, the modified emulsified asphalt binder provided by the invention is used for paving a fine surface of a quick-curing low-noise pavement, and comprises the following operation steps:
s1: pre-treating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and a seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stone on the original pavement, and preserving for 45min to 60min; wherein the spreading amount of the gravels is 4.7 to 5.2kg/m 2 The spreading coverage rate of the broken stones is 70 to 80 percent, and the spreading amount of the binder is 0.6 to 0.8kg/m 2 So that the coarse aggregate forms an embedded and extruded structure and can promote the demulsification of the asphalt and accelerate the curing time. The method adopts a layering and spreading process, so that the emulsified asphalt can be layered and demulsified, and the strength forming time is shortened; if one-time forming easily causes the phenomenon that the emulsified asphalt on the surface is demulsified, the emulsified asphalt in the structure can not be demulsified, and the strength of the structural layer is influenced.
S3: spreading a second layer of binder, broken stone and fiber on the first layer structure, and curing for 45min to 60min, wherein the spreading amount of the broken stone is 2.7 to 3.2kg/m 2 (ii) a The spreading coverage rate of the broken stone is 60 to 70 percent, and the spreading amount of the binder is 0.3 to 0.5kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the using amount of the fiber is 60-80 g/m 2 。
S4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 h. Wherein the spraying amount of the third layer of the binder is 0.3 to 0.5kg/m 2 。
Preferably, the fiber is one or more of polyester fiber, basalt fiber, lignin fiber and glass fiber, and the fiber length is 50mm to 70mm. The added fiber is beneficial to improving the integral durability and the anti-stripping performance of the fine surface of the low-noise pavement in quick health maintenance.
Preferably, the crushed stone is basalt crushed stone, the particle size of the first layer of crushed stone is 3-5mm, and the particle size of the second layer of crushed stone is 0-3mm. So that the gravels laid on the first layer are coarse aggregates and the gravels laid on the second layer are fine aggregates. Wherein the coarse aggregate of first layer forms inlays crowded structure, and the binder is filled and is inlaying crowded structure in, improves the stability of the smart top of low noise road surface department bottom of quick health preserving, and the second floor is through fine aggregate scattering filling skeleton space, improves the durability and the noise reduction effect of the smart top of low noise road surface department of quick health preserving.
Compared with the prior art, the invention has the following remarkable advantages:
(1) The waste rubber powder is used as the high-viscosity modifier, most waste rubber products are modified by a sulfur/accelerator vulcanization system, and sulfur cross-links contained in a net structure mainly comprise monosulfur, disulfide, polysulfide and annular sulfur cross-links, so that the waste rubber powder is well dissolved in the matrix asphalt as the high-viscosity modifier to form a stable compatible system and prepare for the compatibility required by adding the SBS modifier. The modified emulsified asphalt binder can be prepared by modifying and emulsifying the asphalt, so that the performance of the emulsified asphalt is obviously improved, the stability is enhanced, the long-distance transportation and storage are convenient, the application is wider, and meanwhile, as most of the waste rubber powder comes from waste tires, the invention ensures the secondary utilization of the waste rubber powder, reduces the manufacturing cost and reduces the environmental pollution. Greatly reduces the production cost of the modified asphalt.
(2) The invention utilizes CaCl by compounding a stabilizer 2 、NaSO 4 And tourmaline as inorganic stabilizer, to improve stability of soap solutionIn the process of spraying the asphalt glue, potential difference is generated between tourmaline crystals to induce water molecules or oxygen molecules in the binder to be ionized to generate corresponding negative ions, so that the binder is adsorbed and adhered to the surfaces of fibers and broken stones more uniformly, and the overall stability of the binder is improved. Meanwhile, the good thermal dissolution and condensation solidification effects of the organic matter stabilizer are utilized, so that the emulsified asphalt has good high and low temperature performances. According to the invention, the inorganic stabilizer and the organic stabilizer are compounded, so that the crosslinking reaction of asphalt and the modifier can be promoted and initiated, a three-dimensional space network structure is formed, and the storage stability and the bonding stability of the binder are improved.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the detailed description of the embodiments, features and effects of the modified emulsified asphalt binder according to the present invention is provided below. The present invention will be further described with reference to the following embodiments.
In a specific example of the present invention, commercially available materials were sourced as follows:
Figure DEST_PATH_IMAGE001
example 1
A high-viscosity modified emulsified asphalt binder comprises the following components in percentage by mass: 45% of No. 70 matrix asphalt; 2% of MQ65 type emulsifier; 40% of water; 2% of hydrochloric acid; 1% of a stabilizer; 3 percent of SBS modifier; 7 percent of waste rubber powder.
A preparation method of a high-viscosity modified emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an MQ65 type emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH value of the soap solution to 2-4;
(2) Heating the No. 70 matrix asphalt to 130-150 ℃, and then adding an SBS modifier and waste rubber powder;
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing and grinding by a colloid mill to obtain the modified emulsified asphalt binder.
An application method of a high-viscosity modified emulsified asphalt binder, which is used for laying a fine surface of a quick-curing low-noise pavement, comprises the following operation steps:
s1: pre-treating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and a seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stones on the original pavement, and preserving for 50min; wherein the crushed stone is basalt crushed stone, the particle diameter of the crushed stone is 4mm, and the spreading amount is 5kg/m 2 The spreading coverage of the broken stone is 75 percent, and the spreading amount of the adhesive is 0.7kg/m 2 。
S3: spraying second layer of binder, crushed stone and fiber on the first layer of structure, and maintaining for 50min, wherein the crushed stone is basalt crushed stone, the particle diameter of the crushed stone is 2mm, and the spraying amount is 3kg/m 2 (ii) a The spreading coverage rate of the broken stones is 65 percent, and the spreading amount of the adhesive is 0.4kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the dosage of the fiber is 70g/m 2 。
S4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 h. Wherein the spreading amount of the third layer adhesive is 0.4kg/m 2 。
Example 2
The high-viscosity modified emulsified asphalt binder comprises the following components in percentage by mass: 45% of No. 70 matrix asphalt; 2% of MQ65 type emulsifier; 40% of water; 2% of hydrochloric acid; 1% of a stabilizer; 2% of SBS modifier; 8 percent of waste rubber powder.
A preparation method of a high-viscosity modified emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an MQ65 type emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH value of the soap solution to 2-4;
(2) Heating the No. 70 matrix asphalt to 130-150 ℃, and then adding an SBS modifier and waste rubber powder;
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing grinding by a colloid mill to obtain the modified emulsified asphalt binder.
The application method of the high-viscosity modified emulsified asphalt binder is used for paving the fine surface of the road surface with quick curing and low noise, and comprises the following operation steps:
s1: pre-treating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and the seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stones on the original pavement, and preserving for 50min; wherein the crushed stone is basalt crushed stone, the particle size of the crushed stone is 4mm, and the spreading amount is 5kg/m 2 The spreading coverage of the broken stones is 75 percent, and the spreading amount of the adhesive is 0.7kg/m 2 。
S3: spraying second layer of binder, crushed stone and fiber on the first layer of structure, and maintaining for 50min, wherein the crushed stone is basalt crushed stone with particle diameter of 2mm and spraying amount of 3kg/m 2 (ii) a The spreading coverage rate of the broken stones is 65 percent, and the spreading amount of the adhesive is 0.4kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the dosage of the fiber is 70g/m 2 。
S4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 h. Wherein the spreading amount of the third layer adhesive is 0.4kg/m 2 。
Example 3
The high-viscosity modified emulsified asphalt binder comprises the following components in percentage by mass: 45% of No. 70 matrix asphalt; 2% of MQ65 type emulsifier; 40% of water; 2% of hydrochloric acid; 1% of a stabilizer; 1% of SBS modifier; 9 percent of waste rubber powder.
A preparation method of a high-viscosity modified emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an MQ65 type emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH of the soap solution to 2-4;
(2) Heating the No. 70 matrix asphalt to 130-150 ℃, and then adding an SBS modifier and waste rubber powder;
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing and grinding by a colloid mill to obtain the modified emulsified asphalt binder.
An application method of a high-viscosity modified emulsified asphalt binder, which is used for laying a fine surface of a quick-curing low-noise pavement, comprises the following operation steps:
s1: pre-treating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and a seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stone on the original pavement, and preserving for 50min; wherein the crushed stone is basalt crushed stone, the particle size of the crushed stone is 4mm, and the spreading amount is 5kg/m 2 The spreading coverage of the broken stone is 75 percent, and the spreading amount of the adhesive is 0.7kg/m 2 。
S3: spraying second layer of binder, crushed stone and fiber on the first layer of structure, and maintaining for 50min, wherein the crushed stone is basalt crushed stone, the particle diameter of the crushed stone is 2mm, and the spraying amount is 3kg/m 2 (ii) a The spreading coverage rate of the broken stones is 65 percent, and the spreading amount of the adhesive is 0.4kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the dosage of the fiber is 70g/m 2 。
S4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 h. Wherein the spreading amount of the third layer adhesive is 0.4kg/m 2 。
Example 4
A high-viscosity modified emulsified asphalt binder comprises the following components in percentage by mass: 50% of No. 70 matrix asphalt; 1% of MQ65 type emulsifier; 40% of water; 1% of hydrochloric acid; 1% of a stabilizer; 1% of SBS modifier; 6 percent of waste rubber powder.
A preparation method of a high-viscosity modified emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an MQ65 type emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH of the soap solution to 2-4;
(2) Heating the No. 70 matrix asphalt to 130-150 ℃, and then adding an SBS modifier and waste rubber powder;
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing grinding by a colloid mill to obtain the modified emulsified asphalt binder.
An application method of a high-viscosity modified emulsified asphalt binder, which is used for laying a fine surface of a quick-curing low-noise pavement, comprises the following operation steps:
s1: pretreating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and a seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stones on the original pavement, and preserving for 50min; wherein the crushed stone is basalt crushed stone, the particle diameter of the crushed stone is 4mm, and the spreading amount is 5kg/m 2 The spreading coverage of the broken stones is 75 percent, and the spreading amount of the adhesive is 0.7kg/m 2 。
S3: spraying second layer of binder, crushed stone and fiber on the first layer of structure, and maintaining for 50min, wherein the crushed stone is basalt crushed stone with particle diameter of 2mm and spraying amount of 3kg/m 2 (ii) a The spreading coverage rate of the broken stones is 65 percent, and the spreading amount of the adhesive is 0.4kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the dosage of the fiber is 70g/m 2 。
S4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 h. Wherein the spreading amount of the third layer adhesive is 0.4kg/m 2 。
Example 5
The high-viscosity modified emulsified asphalt binder comprises the following components in percentage by mass: 45% of No. 70 matrix asphalt; 1% of MQ65 type emulsifier; 45% of water; 1% of hydrochloric acid; 1% of a stabilizer; 1% of SBS modifier; 6 percent of waste rubber powder.
A preparation method of a high-viscosity modified emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an MQ65 type emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH of the soap solution to 2-4;
(2) Heating the No. 70 matrix asphalt to 130-150 ℃, and then adding an SBS modifier and waste rubber powder;
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing and grinding by a colloid mill to obtain the modified emulsified asphalt binder.
The application method of the high-viscosity modified emulsified asphalt binder is used for paving the fine surface of the road surface with quick curing and low noise, and comprises the following operation steps:
s1: pretreating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and a seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stone on the original pavement, and preserving for 50min; wherein the crushed stone is basalt crushed stone, the particle size of the crushed stone is 4mm, and the spreading amount is 5kg/m 2 The spreading coverage of the broken stones is 75 percent, and the spreading amount of the adhesive is 0.7kg/m 2 。
S3: spraying second layer of binder, crushed stone and fiber on the first layer of structure, and maintaining for 50min, wherein the crushed stone is basalt crushed stone, the particle diameter of the crushed stone is 2mm, and the spraying amount is 3kg/m 2 (ii) a The spreading coverage rate of the broken stones is 65 percent, and the spreading amount of the adhesive is 0.4kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the dosage of the fiber is 70g/m 2 。
S4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 h. Wherein the spreading amount of the third layer adhesive is 0.4kg/m 2 。
Comparative example 1
The modified emulsified asphalt binder comprises the following components in percentage by mass: 45% of No. 70 matrix asphalt; 2% of MQ65 type emulsifier; 43% of water; 2% of hydrochloric acid; 1% of stabilizer and 1% of SBS modifier; 6 percent of waste rubber powder.
Inorganic stabilizer packageIncluding CaCl 2 、NaSO 4 And tourmaline, caCl 2 、NaSO 4 The mass ratio of the tourmaline to the tourmaline is 2:2:1.
a preparation method of a modified emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an MQ65 type emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH value of the soap solution to 2-4;
(2) Heating the No. 70 matrix asphalt to 130-150 ℃, and then adding an SBS modifier and waste rubber powder;
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing and grinding by a colloid mill to obtain the modified emulsified asphalt binder.
The application method of the modified emulsified asphalt binder is used for paving the fine surface of a quick-curing low-noise pavement, and comprises the following operation steps:
s1: pre-treating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and a seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stone on the original pavement, and preserving for 50min; wherein the crushed stone is basalt crushed stone, the particle size of the crushed stone is 4mm, and the spreading amount is 5kg/m 2 The spreading coverage of the broken stone is 75 percent, and the spreading amount of the adhesive is 0.7kg/m 2 。
S3: spraying second layer of binder, crushed stone and fiber on the first layer of structure, and maintaining for 50min, wherein the crushed stone is basalt crushed stone, the particle diameter of the crushed stone is 2mm, and the spraying amount is 3kg/m 2 (ii) a The spreading coverage rate of the broken stones is 65 percent, and the spreading amount of the adhesive is 0.4kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the dosage of the fiber is 70g/m 2 。
S4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 h. Wherein the spreading amount of the third layer adhesive is 0.4kg/m 2 。
Comparative example 2
The modified emulsified asphalt binder comprises the following components in percentage by mass: 45% of No. 70 matrix asphalt; 2% of MQ65 type emulsifier; 43% of water; 2% of hydrochloric acid; 1% of stabilizer and 1% of SBS modifier; 6 percent of waste rubber powder.
The stabilizer comprises CaCl 2 And NaSO 4 ，CaCl 2 And NaSO 4 The mass ratio of (1): 1.
a preparation method of an emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an MQ65 type emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH of the soap solution to 2-4;
(2) Heating the 70# matrix asphalt to 130-150 ℃;
(3) And (3) shearing and grinding the soap solution and the matrix asphalt at a high speed by a colloid mill according to a certain proportion to obtain the emulsified asphalt binder.
The application method of the emulsified asphalt binder is characterized in that the prepared emulsified asphalt binder is used for paving a fine surface of a quick-curing low-noise pavement, and comprises the following operation steps:
s1: pre-treating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and the seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stones on the original pavement, and preserving for 50min; wherein the crushed stone is basalt crushed stone, the particle size of the crushed stone is 4mm, and the spreading amount is 5kg/m 2 The spreading coverage of the broken stones is 75 percent, and the spreading amount of the adhesive is 0.7kg/m 2 。
S3: spraying second layer of binder, crushed stone and fiber on the first layer of structure, and maintaining for 50min, wherein the crushed stone is basalt crushed stone, the particle diameter of the crushed stone is 2mm, and the spraying amount is 3kg/m 2 (ii) a The spreading coverage rate of the broken stones is 65 percent, and the spreading amount of the adhesive is 0.4kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the dosage of the fiber is 70g/m 2 。
S4: finally, a third layer of adhesive is sprayed on the second layer structure, and the second layer structure is opened after being cured for 1 hourAnd (5) traffic. Wherein the spreading amount of the third layer adhesive is 0.4kg/m 2 。
Comparative example 3
The modified emulsified asphalt binder comprises the following components in percentage by mass: 46% of No. 70 matrix asphalt; 2% of MQ65 type emulsifier; 44% of water; 2% of hydrochloric acid; 1% of stabilizer and 1% of SBS modifier; 6 percent of waste rubber powder.
The stabilizer comprises phenolic resin and epoxy resin, and the mass ratio of the phenolic resin to the epoxy resin is 1:0.8.
a preparation method of a modified emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an MQ65 type emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH of the soap solution to 2-4;
(2) Heating the No. 70 matrix asphalt to 130-150 ℃, and then adding an SBS modifier and waste rubber powder;
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing and grinding by a colloid mill to obtain the modified emulsified asphalt binder.
The application method of the modified emulsified asphalt binder is used for paving the fine surface of a quick-curing low-noise pavement, and comprises the following operation steps:
s1: pre-treating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and a seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stone on the original pavement, and preserving for 50min; wherein the crushed stone is basalt crushed stone, the particle diameter of the crushed stone is 4mm, and the spreading amount is 5kg/m 2 The spreading coverage of the broken stone is 75 percent, and the spreading amount of the adhesive is 0.7kg/m 2 。
S3: spraying second layer of binder, crushed stone and fiber on the first layer of structure, and maintaining for 50min, wherein the crushed stone is basalt crushed stone with particle diameter of 2mm and spraying amount of 3kg/m 2 (ii) a The spreading coverage rate of the broken stones is 65 percent, and the spreading of the binderThe amount is 0.4kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the dosage of the fiber is 70g/m 2 。
S4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 h. Wherein the spreading amount of the third layer adhesive is 0.4kg/m 2 。
Comparative example 4
An emulsified asphalt binder, which comprises the following components in percentage by mass: 47% of No. 70 matrix asphalt; 2% of MQ65 type emulsifier; 48% of water; 2% of hydrochloric acid; 1% of stabilizer and 1% of SBS modifier.
A preparation method of an emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an MQ65 type emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH of the soap solution to 2-4;
(2) Heating the No. 70 matrix asphalt to 130-150 ℃, and then adding an SBS modifier;
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing and grinding by a colloid mill to obtain the modified emulsified asphalt binder.
The application method of the emulsified asphalt binder is characterized in that the prepared emulsified asphalt binder is used for paving a fine surface of a quick-curing low-noise pavement, and comprises the following operation steps:
s1: pre-treating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and a seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stone on the original pavement, and preserving for 50min; wherein the crushed stone is basalt crushed stone, the particle size of the crushed stone is 4mm, and the spreading amount is 5kg/m 2 The spreading coverage of the broken stone is 75 percent, and the spreading amount of the adhesive is 0.7kg/m 2 。
S3: spraying second layer of binder, crushed stone and fiber on the first layer of structure, and maintaining for 50min, wherein the crushed stone is basalt crushed stone with particle diameter of 2mm and spraying amount of 3kg/m 2 (ii) a The spreading coverage rate of the crushed stones is 65 percent, and the crushed stones are stuckThe spreading amount of the binding agent is 0.4kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the dosage of the fiber is 70g/m 2 。
S4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 hour. Wherein the spreading amount of the third layer adhesive is 0.4kg/m 2 。
Comparative example 5
An emulsified asphalt binder, which comprises the following components in percentage by mass: 45% of No. 70 matrix asphalt; 2% of MQ65 type emulsifier; 44% of water; 2% of hydrochloric acid; 1% of a stabilizer; 6 percent of waste rubber powder.
A preparation method of an emulsified asphalt binder comprises the following steps;
(1) Firstly, adding a stabilizer and an MQ65 type emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH of the soap solution to 2-4;
(2) Heating the No. 70 matrix asphalt to 130-150 ℃, and then adding waste rubber powder;
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing and grinding by a colloid mill to obtain the modified emulsified asphalt binder.
The application method of the emulsified asphalt binder is characterized in that the prepared emulsified asphalt binder is used for paving a fine surface of a quick-curing low-noise pavement, and comprises the following operation steps:
s1: pre-treating the original pavement; in the step, the stone impurities scattered on the road surface need to be cleaned in advance, and the seam tape is pasted at the crack, wherein the seam tape is heated and melted firstly, and then is flattened after being pasted, so that an unstable interlayer is prevented from being formed.
S2: spraying a first layer of binder and broken stones on the original pavement, and preserving for 50min; wherein the crushed stone is basalt crushed stone, the particle size of the crushed stone is 4mm, and the spreading amount is 5kg/m 2 The spreading coverage of the broken stones is 75 percent, and the spreading amount of the adhesive is 0.7kg/m 2 。
S3: spraying second layer of binder, crushed stone and fiber on the first layer of structure, and maintaining for 50min, wherein the crushed stone is basalt crushed stone, the particle diameter of the crushed stone is 2mm, and the spraying amount is 3kg/m 2 (ii) a Gravel spreadingThe coverage rate is 65%, and the spreading amount of the adhesive is 0.4kg/m 2 (ii) a The fiber is sprayed together with the second layer of broken stone, and the dosage of the fiber is 70g/m 2 。
S4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 hour. Wherein the spreading amount of the third layer adhesive is 0.4kg/m 2 。
Performance verification
TABLE 1 Performance testing of high viscosity modified emulsified asphalt Binders
Figure 901745DEST_PATH_IMAGE003
TABLE 2 Performance test of the fine surface of the road surface with quick health preservation and low noise
Figure DEST_PATH_IMAGE004
As can be seen from the data results, the high-viscosity modified emulsified asphalt binder prepared by the invention is used for quickly curing interlayer bonding at the fine surface of a low-noise road surface, and can improve the interlayer bonding force and the bonding durability and shorten the curing time.
Comparative example 1 in comparison with example 1, the stabiliser comprises only the inorganic stabiliser CaCl 2 、NaSO 4 The performances of the adhesive, tourmaline and high-viscosity modified emulsified asphalt are all reduced, wherein the mixing time is shortened by 13 seconds, the consistency is reduced by 0.17cm, the dynamic viscosity at 60 ℃ is reduced by 800 pas, the rotational viscosity at 177 ℃ is reduced by 0.19 pas, and the abrasion value of a wet wheel abrasion test is increased by 157g/m 2 When the composite material is used for paving a fine surface of a fast-maintenance low-noise road surface, the water permeability coefficient of the composite material reaches 3.8ml/min, which shows that the composite material can promote and initiate the cross-linking reaction of asphalt and a modifier by compounding an inorganic stabilizer and an organic stabilizer to form a three-dimensional space network structure and improve the storage stability and the bonding stability of a bonding agent.
Comparative example 2 in comparison with example 1, the stabiliser comprises only the inorganic stabiliser CaCl 2 And NaSO 4 Does not contain tourmaline, and the mixing time is shortened by 20 secondsThe consistency is reduced by 0.29cm, the dynamic viscosity at 60 ℃ is reduced by 900 pas, the rotational viscosity at 177 ℃ is reduced by 0.15 pas, and the abrasion value of a wet wheel abrasion test is increased by 270g/m 2 When the tourmaline powder is used for paving a fine surface of a fast-curing low-noise pavement, the water permeability coefficient of the tourmaline powder reaches 4.3ml/min, and the tourmaline powder is combined with a comparative example 1 to show that potential difference can be generated in the process of spreading the binder, so that water molecules and oxygen molecules in the binder are ionized to generate corresponding negative ions, the binder is adsorbed and adhered to the surfaces of fibers and broken stones more uniformly, and the overall stability of the binder is improved.
Comparative example 3 in contrast to example 1, the stabilizers included only the organic stabilizers phenolic and epoxy resins. Wherein the mixing time is shortened by 25 seconds, the consistency is reduced by 0.2cm, the dynamic viscosity at 60 ℃ is reduced by 900 pas, the rotational viscosity at 177 ℃ is reduced by 0.23 pas, and the abrasion value of a wet wheel abrasion test is increased by 228g/m 2 And when the modified asphalt is used for paving a fine surface of a quick-curing low-noise road surface, the water permeability coefficient reaches 4.8ml/min, and the compound inorganic stabilizer and organic stabilizer are combined with comparative example 1 to show that the cross-linking reaction of asphalt and a modifier can be promoted and initiated by compounding the inorganic stabilizer and the organic stabilizer, a three-dimensional space network structure is formed, and the storage stability and the bonding stability of the binder are improved.
Comparative example 4 compared to example 1, which does not include the high viscosity modifier, the consistency is reduced by 0.24cm, the dynamic viscosity at 60 ℃ is reduced by 7000 pas, and the wet wheel wear test wear value is increased by 252g/m 2 When the rubber powder is used for paving the fine surface of a quick-curing low-noise road surface, the noise value is increased by 6.5dB, the pendulum value is reduced by 11.7BPN, and the water seepage coefficient reaches 4.3ml/min, so that the waste rubber powder not only improves the bonding property of the adhesive, but also improves the compatibility of the SBS modifier and the asphalt.
Comparative example 5 compared to example 1, which does not include SBS modifier, the kinematic viscosity at 60 ℃ was reduced by 900 pas, the rotational viscosity at 177 ℃ was reduced by 0.23 pas, and the wet wheel wear test wear value was increased by 111g/m 2 When the composite material is used for paving the fine surface of the fast-maintenance low-noise road surface, the noise value is increased by 7.1dB, the pendulum value is reduced by 12.4BPN, and the water seepage coefficient reaches4.1ml/min shows that the SBS modifier is used for improving the anti-rutting capability of the asphalt and has good technical effect.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The high-viscosity modified emulsified asphalt binder is characterized in that the binder comprises the following components in percentage by mass: 45 to 55 percent of matrix asphalt; 1 to 2 percent of emulsifier; 40 to 45 percent of water; 1 to 2 percent of hydrochloric acid; 0.5 to 1 percent of stabilizer; 1 to 3 percent of SBS modifier; 6 to 10 percent of high-viscosity modifier.
2. The high-viscosity modified emulsified asphalt binder as claimed in claim 1, wherein the emulsifier is a fast-setting fatty amine cationic emulsifier.
3. The high viscosity modified emulsified asphalt as defined in claim 1, wherein the stabilizer comprises an inorganic stabilizer and an organic stabilizer, and the inorganic stabilizer and the organic stabilizer are mixed in a ratio of 1:1 by mass ratio.
4. The high viscosity modified emulsified asphalt binder as claimed in claim 3, wherein the inorganic stabilizer comprises CaCl 2 、NaSO 4 And tourmaline, said CaCl 2 、NaSO 4 The mass ratio of the tourmaline to the tourmaline is 2:2:1.
5. the high-viscosity modified emulsified asphalt binder as claimed in claim 3, wherein the organic stabilizer comprises phenolic resin and epoxy resin, and the mass ratio of the phenolic resin to the epoxy resin is 1:0.8.
6. the high-viscosity modified emulsified asphalt binder as claimed in claim 1, wherein the high-viscosity modifier is waste rubber powder.
7. The method for preparing the high-viscosity modified emulsified asphalt binder according to claim 1, comprising the steps of;
(1) Firstly, adding a stabilizer and an emulsifier into water to prepare a soap solution, then heating the soap solution to 50-70 ℃, adding hydrochloric acid, and adjusting the pH of the soap solution to 2-4;
(2) Heating the substrate asphalt to 130-150 ℃, and then adding an SBS modifier and a high-viscosity modifier;
(3) And after the modifier is completely dissolved, adding the soap solution in proportion, and performing high-speed shearing grinding by a colloid mill to obtain the modified emulsified asphalt binder.
8. The method for applying the high-viscosity modified emulsified asphalt binder as claimed in claim 1, wherein the method for applying the high-viscosity modified emulsified asphalt binder to paving a fine surface of a fast-curing low-noise road surface comprises the following steps:
s1: pretreating the original pavement;
s2: spraying a first layer of binder and broken stone on the original pavement, and preserving for 45min to 60min;
s3: spreading a second layer of binder, broken stone and fiber on the first layer of structure, curing for 45min to 60min,
s4: and finally, spraying a third layer of adhesive on the second layer of structure, and opening the traffic after curing for 1 hour.
9. The application method of the high-viscosity modified emulsified asphalt binder according to claim 8, wherein the fiber is one or more of polyester fiber, basalt fiber, lignin fiber and glass fiber, and the fiber length is 50mm to 70mm.
10. The application method of the high-viscosity modified emulsified asphalt binder as claimed in claim 8, wherein the crushed stone is basalt crushed stone, the particle size of the crushed stone in the first layer is 3-5 mm, and the particle size of the crushed stone in the second layer is 0-3 mm.
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