CN112012069A - Antiskid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance method - Google Patents

Antiskid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance method Download PDF

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Publication number
CN112012069A
CN112012069A CN202010834730.7A CN202010834730A CN112012069A CN 112012069 A CN112012069 A CN 112012069A CN 202010834730 A CN202010834730 A CN 202010834730A CN 112012069 A CN112012069 A CN 112012069A
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asphalt
slow
emulsified asphalt
noise
freezing
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CN112012069B (en
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耿磊
王小虎
张小敏
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Jiangsu Chuangwei Transportation Technology Development Co ltd
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Jiangsu Chuangwei Transportation Technology Development Co ltd
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    • 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
    • E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
    • 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
    • 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
    • E01C11/00—Details of pavings
    • 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
    • E01C11/00—Details of pavings
    • E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
    • 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
    • E01C11/00—Details of pavings
    • E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
    • E01C11/245—Methods or arrangements for preventing slipperiness or protecting against influences of the weather for preventing ice formation or for loosening ice, e.g. special additives to the paving material, resilient coatings
    • 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
    • E01C7/358—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them with a combination of two or more binders according to groups E01C7/351 - E01C7/356
    • 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
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/324—Alkali metal phosphate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • 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

Abstract

The invention discloses an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance method, which comprises the steps of synchronously spraying super-viscous emulsified asphalt and aggregate onto a base surface, rolling, cleaning the surface, then spraying a surface protective agent on the surface of the base surface, and finally demulsifying the protective agent. The super-sticky emulsified asphalt prepared by the invention has good high and low temperature performance, PG88-28 modified emulsified asphalt has high viscosity, the viscosity at 60 ℃ is more than 50000Pa s, the softening point is higher than 80 ℃, the ductility at 5 ℃ is more than 20cm, the slow-release type anti-icing material adopts a drug slow-release concept to combine an inorganic anti-icing material on an acrylic resin porous material, the slow-release effect is good, the service life is longer than 5 years, the protective agent adopts a water-based resin emulsion modified emulsified asphalt technology, and the material has strong bonding strength and anti-wheel sticking performance. The maintenance method has better active anti-icing, anti-sliding and noise reduction performances.

Description

Antiskid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance method
Technical Field
The invention relates to a method for maintaining an asphalt pavement, in particular to a method for maintaining an anti-slip, noise-reducing and slow-release type anti-freezing asphalt pavement.
Background
At present, the method for repairing the skid resistance or performing preventive maintenance on asphalt pavements and cement pavements adopted in the market mainly comprises two main categories of thin-layer cover coats and surface seal coats. Wherein, the thin layer overlay technology is generally used for the condition that the original pavement has structural damage or serious functional diseases. The thin-layer overlay technology usually needs to repair the structural diseases of the pavement and then treat the functional diseases, and on the basis, the thin-layer overlay is additionally paved for prolonging the service life of the pavement. The surface sealing layer is generally used in the situation that the pavement has no structural damage and the functional damage is not serious, and mainly comprises slurry sealing layer, micro-surfacing, gravel sealing layer, fog sealing layer and the like. However, the existing repair materials and technologies have poor pertinence to repair the anti-skid function of the road surface, especially for special road sections with fast anti-skid function decline, the existing repair materials and technologies have slow repair speed and high cost, and are difficult to meet the requirement of repeated and fast repair in a short period. Therefore, it is urgently needed to develop a novel preventive maintenance technology for rapidly opening traffic to solve the problem of insufficient skid resistance of the existing asphalt pavement.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a method for maintaining an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement.
The technical scheme is as follows: the invention provides a method for maintaining anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement, which comprises the steps of synchronously spraying super-viscous emulsified asphalt and aggregate onto a base surface, rolling, cleaning the surface, then spraying a surface protective agent on the surface of the base surface, and after the protective agent is demulsified,
the preparation method of the super-viscous emulsified asphalt comprises the following steps:
(1) preparing parent asphalt: heating the matrix asphalt, adding a thermoplastic elastomer, shearing by a high-speed shearing machine, adding rubber oil and sulfur, stirring and developing for 4-6 hours, adding an auxiliary agent A and an auxiliary agent B after the development is finished, and stirring to obtain matrix asphalt for later use;
(2) preparing a soap solution: respectively adding a cationic emulsifier and a super-viscous emulsified asphalt stabilizer into tap water, stirring and mixing, and then adjusting the pH value to 2-2.5 by using a hydrochloric acid solution for later use;
(3) preparing super-viscous emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a modified asphalt colloid mill to prepare emulsified asphalt, and compounding the emulsified asphalt with 60% solid content SBR;
the preparation method of the aggregate comprises the following steps: the aggregate is formed by mixing a slow-release anti-freezing material and basalt or steel slag;
the preparation method of the surface protective agent comprises the following steps: and stirring and mixing the intermediate anionic emulsified asphalt, the resin emulsion and the defoaming agent uniformly to obtain the surface protective agent.
Further, the preparation method of the intermediate anionic emulsified asphalt of the step (3) comprises the following steps:
(1) preparing parent asphalt: the preparation process comprises the following steps: adding the aid A, the aid B and the aid C into the matrix asphalt and stirring;
(2) preparing a soap solution: respectively adding an anionic emulsifier and a surface protective agent stabilizer into tap water, stirring and mixing, and then adjusting the pH value to 10-10.5 by using a NaOH solution;
(3) preparing an intermediate anionic emulsified asphalt: and grinding and emulsifying the soap solution and the parent asphalt by a colloid mill.
Further, the matrix asphalt is 70# matrix asphalt such as Bilong 70# asphalt, SK70# asphalt, Sitai 70# asphalt, GS70# asphalt, Zhehai 70# asphalt, and Clarityl 70# asphalt.
Further, the thermoplastic elastomer is one or a mixture of any two of a styrene and butadiene block copolymer SBS, a styrene butadiene rubber SBR, a hydrogenated styrene-butadiene block copolymer SEBS, a styrene-ethylene-propylene-styrene type block copolymer SEPS, a styrene-isoprene-styrene triblock copolymer SIS or a hydrogenated styrene-isoprene-styrene triblock copolymer hydrogenated SIS. The action of the high molecular elastomer can obviously increase the softening point, the viscosity at 60 ℃ and the low-temperature grade of the asphalt and improve the high-temperature non-sticking and low-temperature crack resistance of the emulsified asphalt evaporation residue of the non-stick wheel. Therefore, the emulsified asphalt for preparing the non-stick wheel has better low-temperature performance.
Further, the additive A is polyethylene wax; the auxiliary agent B is rosin resin, terpene resin, C5 petroleum resin, C9 petroleum resin, C5 hydrogenated petroleum resin, C9 hydrogenated petroleum resin, C5 modified C9 resin, C9 modified C5 resin, coumarone resin, piperylene resin, dicyclopentadiene resin or fumaric acid modified petroleum resin; the auxiliary agent C is rock asphalt, lake asphalt, oxidized asphalt, sulfonated asphalt, 0# asphalt and 10# asphalt.
Further, the cationic emulsifier is AA-63D, Aksu 4819, 1831 and 18331.
Further, the super-viscous emulsified asphalt stabilizer is sodium carboxymethylcellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, hydroxypropyl cellulose, CaCl2、NH4One or a mixture of any two of C1; the surface protective agent stabilizer is Na2SO4、Na3PO4One or a mixture of any two of sodium carboxymethylcellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose and hydroxypropyl cellulose.
Further, the resin emulsion is water-based polyurethane emulsion, water-based pure acrylic emulsion, water-based styrene-acrylic emulsion, water-based epoxy resin emulsion, water-based silicone acrylic emulsion and water-based vinyl acetate acrylic emulsion.
Further, the defoaming agent is emulsified silicone oil, a higher alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane.
Further, the spreading amount of the super sticky emulsified asphalt is 0.8-1.2Kg/m2(ii) a The spreading amount of the aggregate is 5-8Kg/m2(ii) a The spreading amount of the surface protective agent is 0.3-0.6Kg/m2。
Has the advantages that: firstly, preparing the needed super-viscous emulsified asphalt, the slow-release anti-icing material, the aggregate and the surface protective agent, and then adding 0.8-1.3kg/m2Super-viscous emulsified asphalt, a slow-release anti-freezing material accounting for 5-8% of aggregate, and 6-8kg/m2Aggregate and 0.3-0.5kg/m2The surface protective agent is distributed and sprayed to form the anti-skid, noise-reducing and slow-release type anti-freezing pavement material of two kinds of oil and one stone. The super-viscous emulsified asphalt prepared by the invention has good high and low temperature performance, namely PG88-28 modified emulsified asphalt, has high viscosity, the viscosity at 60 ℃ is more than 50000Pa s, the softening point is higher than 80 ℃, and the ductility at 5 ℃ is more than 20 cm; the slow-release type anti-icing material combines an inorganic anti-icing material on an acrylic resin porous material by adopting a drug slow-release conceptThe slow release effect is good, and the service life is longer than 5 years; the mineral aggregate is special stone or steel slag for paving a steel bridge deck, and has better skid resistance and wear resistance. The protective agent adopts the technology of modifying emulsified asphalt by aqueous resin emulsion, and the material has stronger bonding strength and wheel sticking prevention performance; the invention adopts the aggregate with the single grain diameter of 3-5mm, has larger porosity, solves the problem of larger noise in the traditional maintenance technology, and reduces the noise reduction performance by 4-6 dB at a micro surface and by 1-3 dB at a common fine surface. Therefore, the maintenance technology formed by the two-oil-stone scheme has better active anti-icing, anti-sliding and noise reduction performances.
Detailed Description
Example 1
The invention relates to a preparation method of an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance technology, which comprises the following steps: (1) preparation of super-viscous emulsified asphalt
1) Preparing parent asphalt:
Figure BDA0002637493610000031
the preparation process comprises the following steps: heating the Bilong No. 70 substrate asphalt to 175 ℃, then adding an SBS modifier into the Bilong No. 70 substrate asphalt, shearing for 1h by a high-speed shearing machine, adding Shell371 rubber oil, slowly adding sulfur after the Shell371 rubber oil is completely added, stirring and developing for 4.5h, adding polyethylene wax and rosin resin with the melting dropping point of 99 ℃ after the development is completed, and stirring for 3h to prepare the parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000032
the preparation method comprises the following steps: respectively adding AA-63D and CaCl2Adding into 55 deg.C tap water, stirring, mixing, and adjusting pH to 2-2.5 with hydrochloric acid.
3) Preparing super-viscous emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a modified asphalt colloid mill according to the mass ratio of 37: 63, wherein the temperature of the soap solution is 55 ℃, the emulsifying temperature of the parent asphalt is 175 ℃ to prepare emulsified asphalt, and then compounding the emulsified asphalt and 60% solid SBR according to the mass ratio of 97: 3 to prepare the target product of the super-viscous emulsified asphalt.
(2) Slow-release type anti-freezing material
Acrylic polymer carrier: 100 portions of
NaCl: 45 portions of
Ethylene glycol: 22 portions of
The preparation process comprises the following steps: slowly adding 30ml of acrylic acid polymer into 200ml of aqueous solution, stirring at the stirring speed of 800r/min for 40min to prepare acrylic acid suspension, adding ethylene glycol into the suspension, stirring at the stirring speed of 500r/min for 20min, adding NaCl, reducing the stirring speed to 100r/min, stirring for 30min, and performing pressure drying granulation to prepare the slow-release anti-freezing ice material.
(3) Aggregate preparation:
3-5mm basalt: 100 portions of
The slow-release type anti-freezing material comprises the following components: 6 portions of
The aggregate is prepared by mixing a slow-release anti-freezing material and 3-5mm basalt in mass ratio
(4) Surface protecting agent:
1) preparing parent asphalt:
Figure BDA0002637493610000041
the preparation process comprises the following steps: heating SK70# matrix asphalt to 175 ℃, then adding rock asphalt, coumarone resin and polyethylene wax with a melting point of 85 ℃ into SK70# matrix asphalt, and stirring for 3 hours to prepare parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000042
the preparation method comprises the following steps: sodium dodecyl benzene sulfonate and sodium carboxymethyl cellulose are added into tap water of 55 deg.c separately, and after stirring and mixing, 30% concentration NaOH solution is used to regulate pH value to 10-10.5 for further use.
3) Preparing an intermediate anionic emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a colloid mill according to the mass ratio of 50: 50, wherein the temperature of the soap solution is 55 ℃, and the emulsifying temperature of the parent asphalt is 175 ℃ to prepare the intermediate anionic emulsified asphalt.
4) Preparing a surface protective agent:
intermediate anionic emulsified asphalt: 100 portions of
Anionic aqueous polyurethane resin emulsion: 18 portions of
Emulsified silicone oil: 0.37 part
The preparation method comprises the following steps: and stirring and mixing the intermediate anionic emulsified asphalt cooled to room temperature, the anionic waterborne polyurethane resin emulsion and the emulsified silicone oil uniformly to obtain the surface protective agent.
(5) The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction:
spreading amount of the super-viscous emulsified asphalt: 0.9Kg/m2
The spreading amount of the middle layer aggregate is as follows: 6Kg/m2
Spreading amount of the upper surface protective agent: 0.3Kg/m2。
The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction: the pavement maintenance technology comprises the steps of synchronously spraying the super-sticky emulsified asphalt and stone on a base surface, rolling, cleaning pumice on the surface, spraying the surface protective agent after cleaning, and demulsifying the surface protective agent to prepare the pavement maintenance technology with the functions of deicing, skid resistance and noise reduction.
(6) Comparative micro-surfacing technique
1) Preparing micro-surfacing emulsified asphalt: 600g of Bilong 70# asphalt is taken and heated to 140 ℃. A soap solution (400 g) containing 20g of a Maitrevisweedk MQK micro-surface emulsifier, 35 g of 1468 latex (produced by Maitrevisdk), tap water and an acid was adjusted to pH 2-3, heated to 60 ℃ and passed through a colloid mill to prepare an asphalt emulsion. Obtaining the uniform and fine cation slow-breaking quick-setting emulsified asphalt.
2) Preparing a micro-surfacing mixture:
taking 100 parts of aggregate (containing 50% of 0-3mm, 35% of 3-5mm and 15% of 5-8mm), adding 1.5 parts of cement, uniformly mixing, then adding 7 parts of water, uniformly mixing, finally adding 11.5 parts of micro-surfacing emulsified asphalt, uniformly mixing for 120 seconds, forming a test piece, and testing the performance.
Table 1 example 1 technical index test results for preparing super viscous emulsified asphalt
Figure BDA0002637493610000051
Figure BDA0002637493610000061
Table 2 example 1 technical index test results for preparing surface protective agent
Index (I) Unit of Surface protective agent Technical requirements Test method
Appearance state - Liquid state Liquid state -
Solid content ％ 51.2 ≥43 GB/T-2793
Time to surface dry min 30 ≤60 GB/T-16777
Adhesion pull strength (20 ℃ C.) MPa 1.65 ≥1.0 JC/T975-2005
Adhesion pull strength (20 ℃ C.) MPa 0.84 ≥0.7 JC/T975-2005
Table 3 example 1 preparation maintenance technical index test results
Detecting items Unit of EXAMPLE 1 curing technique Micro-surfacing technology Technical requirements
2h cohesion N*m 2.3 2.1 ≥2.0
1h wet wheel abrasion g/m2 274 362 ≤538
6d wet wheel abrasion g/m2 295 452 ≤807
Load wheel sticking sand g/m2 299 308 ≤450
Pendulum value BPN 72.1 71.4 ≥50
Build depth TD mm 0.68 0.53 ≥0.45
Coefficient of water permeability ml/min 0 2.3 ≤10
Noise (F) dB 66.2 71.6 /
Example 2
The invention relates to a preparation method of an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance technology, which comprises the following steps: (1) preparation of super-viscous emulsified asphalt
1) Preparing parent asphalt:
Figure BDA0002637493610000062
Figure BDA0002637493610000071
the preparation process comprises the following steps: heating SK70# base asphalt to 175 ℃, then adding SBR into SK70# base asphalt, shearing for 1h through a high-speed shearing machine, adding rubber oil Sun235, adding the rubber oil Sun235, slowly adding sulfur after completely adding, stirring and developing for 6h, adding 80 ℃ polyethylene wax and C5 petroleum resin after completing development, and stirring for 3h to prepare parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000072
the preparation method comprises the following steps: respectively adding Aksu 4819 and hydroxyethyl cellulose into 55 deg.C tap water, stirring, mixing, and adjusting pH to 2-2.5 with hydrochloric acid.
3) Preparing super-viscous emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a modified asphalt colloid mill according to the mass ratio of 0.37: 0.63, wherein the temperature of the soap solution is 55 ℃, the emulsifying temperature of the parent asphalt is 175 ℃ to prepare emulsified asphalt, and then compounding the emulsified asphalt and 60% solid SBR according to the mass ratio of 97: 3 to prepare the target product of the super-viscous emulsified asphalt.
(2) Slow-release type anti-freezing material
Acrylic polymer carrier: 100 portions of
MgCl2: 30 portions of
Ethylene glycol: 10 portions of
The preparation process comprises the following steps: slowly adding 30ml of acrylic acid polymer into 200ml of aqueous solution, stirring at the stirring speed of 800r/min for 40min to prepare acrylic acid suspension, adding ethylene glycol into the suspension, stirring at the stirring speed of 500r/min for 20min, and adding MgCl2Reducing the stirring speed to 100r/min, stirring for 30min, and then pressing and granulating to prepare the slow-release anti-freezing ice material.
(3) Aggregate preparation:
3-5mm steel slag: 100 portions of
The slow-release type anti-freezing material comprises the following components: 7 portions of
The aggregate is prepared by mixing a slow-release anti-freezing material and 3-5mm steel slag in mass ratio
(4) Surface protecting agent:
1) preparing parent asphalt:
Figure BDA0002637493610000081
the preparation process comprises the following steps: heating the Bilong 70# base asphalt to 175 ℃, then adding lake asphalt, terpene resin and 145 ℃ polyethylene wax into the Bilong 70# base asphalt, and stirring for 4 hours to prepare parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000082
the preparation method comprises the following steps: KZW-803Y and Na are added respectively3PO4Adding into 55 deg.C tap water, stirring, mixing, and adjusting pH to 10-10.5 with 30% NaOH solution.
3) Preparing an intermediate anionic emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a colloid mill according to the mass ratio of 50: 50, wherein the temperature of the soap solution is 55 ℃, and the emulsifying temperature of the parent asphalt is 175 ℃ to prepare the intermediate anionic emulsified asphalt.
4) Preparing a surface protective agent:
intermediate anionic emulsified asphalt: 100 portions of
Aqueous pure acrylic emulsion: 22 portions of
Higher alcohol fatty acid complex: 2 portions of
The preparation method comprises the following steps: and stirring and mixing the intermediate anionic emulsified asphalt cooled to room temperature, the water-based pure acrylic emulsion and the high-carbon alcohol fatty acid compound uniformly to obtain the surface protective agent.
(5) The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction:
spreading amount of the super-viscous emulsified asphalt: 0.8Kg/m2
The spreading amount of the middle layer aggregate is as follows: 5.4Kg/m2
Spreading amount of the upper surface protective agent: 0.4Kg/m2。
The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction: the pavement maintenance technology comprises the steps of synchronously spraying the super-sticky emulsified asphalt and stone on a base surface, rolling, cleaning pumice on the surface, spraying the surface protective agent after cleaning, and demulsifying the surface protective agent to prepare the pavement maintenance technology with the functions of deicing, skid resistance and noise reduction.
(6) Comparative micro-surfacing technique
1) Preparing micro-surfacing emulsified asphalt: 600g of Bilong 70# asphalt is taken and heated to 140 ℃. A soap solution (400 g) containing 20g of a Maitrevisweedk MQK micro-surface emulsifier, 35 g of 1468 latex (produced by Maitrevisdk), tap water and an acid was adjusted to pH 2-3, heated to 60 ℃ and passed through a colloid mill to prepare an asphalt emulsion. Obtaining the uniform and fine cation slow-breaking quick-setting emulsified asphalt.
2) Preparing a micro-surfacing mixture:
taking 100 parts of aggregate (containing 50% of 0-3mm, 35% of 3-5mm and 15% of 5-8mm), adding 1.5 parts of cement, uniformly mixing, then adding 7 parts of water, uniformly mixing, finally adding 11.5 parts of micro-surfacing emulsified asphalt, uniformly mixing for 120 seconds, forming a test piece, and testing the performance.
Table 4 example 2 technical index test results for preparing super viscous emulsified asphalt
Figure BDA0002637493610000091
Table 5 results of technical index test for preparing surface protective agent in example 2
Index (I) Unit of Surface protective agent Technical requirements Test method
Appearance state - Liquid state Liquid state -
Solid content ％ 53.4 ≥43 GB/T-2793
Time to surface dry min 45 ≤60 GB/T-16777
Adhesion pull strength (20 ℃ C.) MPa 1.31 ≥1.0 JC/T975-2005
Adhesion pull strength (20 ℃ C.) MPa 0.74 ≥0.7 JC/T975-2005
Table 6 example 2 preparation maintenance technical index test results
Detecting items Unit of EXAMPLE 2 curing technique Micro-surfacing technology Technical requirements
2h cohesion N*m 2.2 2.1 ≥2.0
1h wet wheel abrasion g/m2 304 362 ≤538
6d wet wheel abrasion g/m2 357 452 ≤807
Load wheel sticking sand g/m2 212 308 ≤450
Pendulum value BPN 73.6 71.4 ≥50
Build depth TD mm 0.66 0.53 ≥0.45
Coefficient of water permeability ml/min 0 2.3 ≤10
Noise (F) dB 65.7 71.6 /
Example 3
The invention relates to a preparation method of an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance technology, which comprises the following steps: (1) preparation of super-viscous emulsified asphalt
1) Preparing parent asphalt:
Figure BDA0002637493610000101
the preparation process comprises the following steps: heating the west Tai 70# base asphalt to 175 ℃, then adding SEBS into the west Tai 70# base asphalt, shearing for 1h by a high-speed shearing machine, adding the gram-refined YT-6 rubber oil and the gram-refined YT-6 rubber oil, slowly adding sulfur after completely adding, stirring for development for 4h, adding the polyethylene wax and the terpene resin at 99 ℃ after the development is completed, and stirring for 3.5h to prepare the parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000102
the preparation method comprises the following steps: emulsifier 1831 and NH respectively4Adding Cl into tap water at 55 ℃, stirring and mixing, and then adjusting the pH value to 2-2.5 by hydrochloric acid for later use.
3) Preparing super-viscous emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a modified asphalt colloid mill according to the mass ratio of 0.37: 0.63, wherein the temperature of the soap solution is 55 ℃, the emulsifying temperature of the parent asphalt is 175 ℃ to prepare emulsified asphalt, and then compounding the emulsified asphalt and 60% solid SBR according to the mass ratio of 97: 3 to prepare the target product of the super-viscous emulsified asphalt.
(2) Slow-release type anti-freezing material
Acrylic polymer carrier: 100 portions of
CaCl2: 15 portions of
Ethylene glycol: 30 portions of
The preparation process comprises the following steps: slowly adding 30ml of acrylic acid polymer into 200ml of water solution, stirring at a stirring speed of 800r/min for 40min to prepare acrylic acid suspension, adding ethylene glycol into the suspension, stirring at a stirring speed of 500r/min for 20min, adding CaCl2Reducing the stirring speed to 100r/min, stirring for 30min, and then pressing and granulating to prepare the slow-release anti-freezing ice material.
(3) Aggregate preparation:
3-5mm steel slag: 100 portions of
The slow-release type anti-freezing material comprises the following components: 8 portions of
The aggregate is prepared by mixing a slow-release anti-freezing material and 3-5mm steel slag in mass ratio
(4) Surface protecting agent:
1) preparing parent asphalt:
Figure BDA0002637493610000111
the preparation process comprises the following steps: heating the west Tai 70# base asphalt to 175 ℃, and then adding lake asphalt, terpene resin and 125 ℃ polyethylene wax into the west Tai 70# base asphalt and stirring for 4 hours to prepare parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000112
the preparation method comprises the following steps: respectively adding SM-LY-102 and hydroxypropyl methylcellulose into tap water at 55 ℃, stirring and mixing, and adjusting the pH value to 10-10.5 by using 30% NaOH solution for later use.
3) Preparing an intermediate anionic emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a colloid mill according to the mass ratio of 50: 50, wherein the temperature of the soap solution is 55 ℃, and the emulsifying temperature of the parent asphalt is 175 ℃ to prepare the intermediate anionic emulsified asphalt.
4) Preparing a surface protective agent:
intermediate anionic emulsified asphalt: 100 portions of
Water-based styrene-acrylic emulsion: 150 portions of
Polyoxyethylene polyoxypropylene pentaerythritol ether: 2 portions of
The preparation method comprises the following steps: and stirring and mixing the intermediate anionic emulsified asphalt cooled to room temperature, the water-based styrene-acrylic emulsion and the polyoxyethylene polyoxypropylene pentaerythritol ether uniformly to obtain the surface protective agent.
(5) The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction:
spreading amount of the super-viscous emulsified asphalt: 0.95Kg/m2
The spreading amount of the middle layer aggregate is as follows: 6.2Kg/m2
Spreading amount of the upper surface protective agent: 0.4Kg/m2。
The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction: the pavement maintenance technology comprises the steps of synchronously spraying the super-sticky emulsified asphalt and stone on a base surface, rolling, cleaning pumice on the surface, spraying the surface protective agent after cleaning, and demulsifying the surface protective agent to prepare the pavement maintenance technology with the functions of deicing, skid resistance and noise reduction.
(6) Comparative micro-surfacing technique
1) Preparing micro-surfacing emulsified asphalt: 600g of Bilong 70# asphalt is taken and heated to 140 ℃. A soap solution (400 g) containing 20g of a Maitrevisweedk MQK micro-surface emulsifier, 35 g of 1468 latex (produced by Maitrevisdk), tap water and an acid was adjusted to pH 2-3, heated to 60 ℃ and passed through a colloid mill to prepare an asphalt emulsion. Obtaining the uniform and fine cation slow-breaking quick-setting emulsified asphalt.
2) Preparing a micro-surfacing mixture:
taking 100 parts of aggregate (containing 50% of 0-3mm, 35% of 3-5mm and 15% of 5-8mm), adding 1.5 parts of cement, uniformly mixing, then adding 7 parts of water, uniformly mixing, finally adding 11.5 parts of micro-surfacing emulsified asphalt, uniformly mixing for 120 seconds, forming a test piece, and testing the performance.
Table 7 example 3 technical index test results for preparing super viscous emulsified asphalt
Figure BDA0002637493610000121
Figure BDA0002637493610000131
Table 8 example 3 technical index test results for preparing surface protective agent
Index (I) Unit of Surface protective agent Technical requirements Test method
Appearance state - Liquid state Liquid state -
Solid content ％ 53.6 ≥43 GB/T-2793
Time to surface dry min 27 ≤60 GB/T-16777
Adhesion pull strength (20 ℃ C.) MPa 1.71 ≥1.0 JC/T975-2005
Adhesion pull strength (20 ℃ C.) MPa 0.88 ≥0.7 JC/T975-2005
Table 9 example 3 preparation maintenance technical index test results
Detecting items Unit of Example 3 curing technique Micro-surfacing technology Technical requirements
2h cohesion N*m 2.5 2.1 ≥2.0
1h wet wheel abrasion g/m2 196 362 ≤538
6d wet wheel abrasion g/m2 213 452 ≤807
Load wheel sticking sand g/m2 274 308 ≤450
Pendulum value BPN 74.6 71.4 ≥50
Build depth TD mm 0.63 0.53 ≥0.45
Coefficient of water permeability ml/min 0 2.3 ≤10
Noise (F) dB 65.8 71.6 /
Example 4
The invention relates to a preparation method of an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance technology, which comprises the following steps:
(1) preparation of super-viscous emulsified asphalt
1) Preparing parent asphalt:
Figure BDA0002637493610000141
the preparation process comprises the following steps: heating GS70# matrix asphalt to 175 ℃, then adding a thermoplastic elastomer SEPS into GS70# matrix asphalt, shearing for 1h by a high-speed shearing machine, adding oil-in-rubber KN4006 and oil-in-rubber KN4006, slowly adding sulfur after the addition is completed, stirring and developing for 5.5h, adding 95 ℃ polyethylene wax and piperylene resin after the development is completed, and stirring for 3h to prepare parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000142
the preparation method comprises the following steps: adding emulsifier 18331 and sodium carboxymethylcellulose into 55 deg.C tap water, stirring, mixing, and adjusting pH to 2-2.5 with hydrochloric acid.
3) Preparing super-viscous emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a modified asphalt colloid mill according to the mass ratio of 0.37: 0.63, wherein the temperature of the soap solution is 55 ℃, the emulsifying temperature of the parent asphalt is 175 ℃ to prepare emulsified asphalt, and then compounding the emulsified asphalt and 60% solid SBR according to the mass ratio of 97: 3 to prepare the target product of the super-viscous emulsified asphalt.
(2) Slow-release type anti-freezing material
Acrylic polymer carrier: 100 portions of
MgCl2: 35 portions of
Ethylene glycol: 26 portions of
The preparation process comprises the following steps: slowly adding 30ml of acrylic acid polymer into 200ml of aqueous solution, stirring at the stirring speed of 800r/min for 40min to prepare acrylic acid suspension, adding ethylene glycol into the suspension, stirring at the stirring speed of 500r/min for 20min, and adding MgCl2Reducing the stirring speed to 100r/min, stirring for 30min, and then pressing and granulating to prepare the slow-release anti-freezing ice material.
(3) Aggregate preparation:
3-5mm steel slag: 100 portions of
The slow-release type anti-freezing material comprises the following components: 7.5 parts of
The aggregate is prepared by mixing a slow-release anti-freezing material and 3-5mm steel slag in mass ratio
(4) Surface protecting agent:
1) preparing parent asphalt:
Figure BDA0002637493610000151
the preparation process comprises the following steps: GS70# base asphalt is heated to 175 ℃, and then sulfonated asphalt, C9 modified C5 resin and polyethylene wax at 117 ℃ are added into GS70# base asphalt to be stirred for 4 hours to prepare parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000152
the preparation method comprises the following steps: adding emulsifier sodium oleate and hydroxypropyl cellulose into 55 deg.C tap water, stirring, mixing, and adjusting pH to 10-10.5 with 30% NaOH solution.
3) Preparing an intermediate anionic emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a colloid mill according to the mass ratio of 50: 50, wherein the temperature of the soap solution is 55 ℃, and the emulsifying temperature of the parent asphalt is 175 ℃ to prepare the intermediate anionic emulsified asphalt.
4) Preparing a surface protective agent:
intermediate anionic emulsified asphalt: 100 portions of
Aqueous epoxy resin emulsion: 50 portions of
Polyoxyethylene polyoxypropylene amine ether: 2 portions of
The preparation method comprises the following steps: and stirring and mixing the intermediate anionic emulsified asphalt cooled to room temperature, the aqueous epoxy resin emulsion and the polyoxyethylene polyoxypropylene amine ether uniformly to obtain the surface protective agent.
(5) The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction:
spreading amount of the super-viscous emulsified asphalt: 1.05Kg/m2
The spreading amount of the middle layer aggregate is as follows: 6.8Kg/m2
Spreading amount of the upper surface protective agent: 0.4Kg/m2。
The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction: the pavement maintenance technology comprises the steps of synchronously spraying the super-sticky emulsified asphalt and stone on a base surface, rolling, cleaning pumice on the surface, spraying the surface protective agent after cleaning, and demulsifying the surface protective agent to prepare the pavement maintenance technology with the functions of deicing, skid resistance and noise reduction.
(6) Comparative micro-surfacing technique
1) Preparing micro-surfacing emulsified asphalt: 600g of Bilong 70# asphalt is taken and heated to 140 ℃. A soap solution (400 g) containing 20g of a Maitrevisweedk MQK micro-surface emulsifier, 35 g of 1468 latex (produced by Maitrevisdk), tap water and an acid was adjusted to pH 2-3, heated to 60 ℃ and passed through a colloid mill to prepare an asphalt emulsion. Obtaining the uniform and fine cation slow-breaking quick-setting emulsified asphalt.
2) Preparing a micro-surfacing mixture:
taking 100 parts of aggregate (containing 50% of 0-3mm, 35% of 3-5mm and 15% of 5-8mm), adding 1.5 parts of cement, uniformly mixing, then adding 7 parts of water, uniformly mixing, finally adding 11.5 parts of micro-surfacing emulsified asphalt, uniformly mixing for 120 seconds, forming a test piece, and testing the performance.
Table 10 example 4 technical index test results for preparing super viscous emulsified asphalt
Figure BDA0002637493610000161
Table 11 example 4 technical index test results for preparing surface protective agent
Figure BDA0002637493610000162
Figure BDA0002637493610000171
Table 12 example 4 preparation maintenance technical index test results
Detecting items Unit of Example 4 curing technique Micro-surfacing technology Technical requirements
2h cohesion N*m 2.5 2.1 ≥2.0
1h wet wheel abrasion g/m2 167 362 ≤538
6d wet wheel abrasion g/m2 206 452 ≤807
Load wheel sticking sand g/m2 304 308 ≤450
Pendulum value BPN 74.2 71.4 ≥50
Build depth TD mm 0.67 0.53 ≥0.45
Coefficient of water permeability ml/min 0 2.3 ≤10
Noise (F) dB 67.4 71.6 /
Example 5
The invention relates to a preparation method of an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance technology, which comprises the following steps:
(1) preparation of super-viscous emulsified asphalt
1) Preparing parent asphalt:
Figure BDA0002637493610000172
the preparation process comprises the following steps: heating the Zhehai 70# base asphalt to 175 ℃, then adding the thermoplastic elastomer SIS into the Zhehai 70# base asphalt, shearing for 1h through a high-speed shearing machine, adding rubber oil gram-refined YT-10, adding sulfur slowly after the addition is completed, stirring and developing for 4h, adding 105 ℃ polyethylene wax and fumaric acid modified petroleum resin after the development is completed, and stirring for 6h to prepare the parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000173
Figure BDA0002637493610000181
the preparation method comprises the following steps: respectively adding AA-63D and hydroxypropyl methylcellulose into tap water of 55 ℃, stirring and mixing, and then adjusting the pH value to 2-2.5 with hydrochloric acid for later use.
3) Preparing super-viscous emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a modified asphalt colloid mill according to the mass ratio of 0.37: 0.63, wherein the temperature of the soap solution is 55 ℃, the emulsifying temperature of the parent asphalt is 175 ℃ to prepare emulsified asphalt, and then compounding the emulsified asphalt and 60% solid SBR according to the mass ratio of 97: 3 to prepare the target product of the super-viscous emulsified asphalt.
(2) Slow-release type anti-freezing material
Acrylic polymer carrier: 100 portions of
NaCl: 60 portions of
Ethylene glycol: 28 portions of
The preparation process comprises the following steps: slowly adding 30ml of acrylic acid polymer into 200ml of aqueous solution, stirring at the stirring speed of 800r/min for 40min to prepare acrylic acid suspension, adding ethylene glycol into the suspension, stirring at the stirring speed of 500r/min for 20min, adding NaCl, reducing the stirring speed to 100r/min, stirring for 30min, and performing pressure drying granulation to prepare the slow-release anti-freezing ice material.
(3) Aggregate preparation:
3-5mm basalt: 100 portions of
The slow-release type anti-freezing material comprises the following components: 6.5 parts of
The aggregate is prepared by mixing a slow-release anti-freezing material and 3-5mm basalt in mass ratio
(4) Surface protecting agent:
1) preparing parent asphalt:
zhenhai No. 70 matrix asphalt: 100 portions of
0# asphalt: 35 portions of
C5 hydrogenated petroleum resin: 5 portions of
Polyethylene wax at 120 ℃: 4 portions of
The preparation process comprises the following steps: heating the matrix asphalt of Zhehai 70# to 175 ℃, and then adding 0# asphalt, C5 hydrogenated petroleum resin and polyethylene wax of 120 ℃ into the matrix asphalt of Zhehai 70# and stirring for 4 hours to prepare parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000182
Figure BDA0002637493610000191
the preparation method comprises the following steps: adding emulsifier sodium abietate and hydroxyethyl cellulose into tap water of 55 deg.C, stirring, mixing, and adjusting pH to 10-10.5 with 30% NaOH solution.
3) Preparing an intermediate anionic emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a colloid mill according to the mass ratio of 50: 50, wherein the temperature of the soap solution is 55 ℃, and the emulsifying temperature of the parent asphalt is 175 ℃ to prepare the intermediate anionic emulsified asphalt.
4) Preparing a surface protective agent:
intermediate anionic emulsified asphalt: 100 portions of
Water-based silicone-acrylic emulsion: 100 portions of
Polyoxypropylene glycerol ether: 1.3 parts of
The preparation method comprises the following steps: and stirring and mixing the intermediate anionic emulsified asphalt cooled to room temperature, the water-based silicone-acrylic emulsion and the polyoxypropylene glycerol ether uniformly to obtain the surface protective agent.
(5) The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction:
spreading amount of the super-viscous emulsified asphalt: 1.2Kg/m2
The spreading amount of the middle layer aggregate is as follows: 8Kg/m2
Spreading amount of the upper surface protective agent: 0.5Kg/m2。
The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction: the pavement maintenance technology comprises the steps of synchronously spraying the super-sticky emulsified asphalt and stone on a base surface, rolling, cleaning pumice on the surface, spraying the surface protective agent after cleaning, and demulsifying the surface protective agent to prepare the pavement maintenance technology with the functions of deicing, skid resistance and noise reduction.
(6) Comparative micro-surfacing technique
1) Preparing micro-surfacing emulsified asphalt: 600g of Bilong 70# asphalt is taken and heated to 140 ℃. A soap solution (400 g) containing 20g of a Maitrevisweedk MQK micro-surface emulsifier, 35 g of 1468 latex (produced by Maitrevisdk), tap water and an acid was adjusted to pH 2-3, heated to 60 ℃ and passed through a colloid mill to prepare an asphalt emulsion. Obtaining the uniform and fine cation slow-breaking quick-setting emulsified asphalt.
2) Preparing a micro-surfacing mixture:
taking 100 parts of aggregate (containing 50% of 0-3mm, 35% of 3-5mm and 15% of 5-8mm), adding 1.5 parts of cement, uniformly mixing, then adding 7 parts of water, uniformly mixing, finally adding 11.5 parts of micro-surfacing emulsified asphalt, uniformly mixing for 120 seconds, forming a test piece, and testing the performance.
Table 13 example 5 technical index test results for preparing super viscous emulsified asphalt
Figure BDA0002637493610000192
Figure BDA0002637493610000201
Table 14 results of technical index test for preparing surface protective agent in example 5
Index (I) Unit of Surface protective agent Technical requirements Test method
Appearance state - Liquid state Liquid state -
Solid content ％ 50.8 ≥43 GB/T-2793
Time to surface dry min 35 ≤60 GB/T-16777
Adhesion pull strength (20 ℃ C.) MPa 1.82 ≥1.0 JC/T975-2005
Adhesion pull strength (20 ℃ C.) MPa 0.93 ≥0.7 JC/T975-2005
Table 15 example 5 preparation maintenance technical index test results
Detecting items Unit of Example 5 curing technique Micro-surfacing technology Technical requirements
2h cohesion N*m 2.6 2.1 ≥2.0
1h wet wheel abrasion g/m2 141 362 ≤538
6d wet wheel abrasion g/m2 198 452 ≤807
Load wheel sticking sand g/m2 182 308 ≤450
Pendulum value BPN 71.8 71.4 ≥50
Build depth TD mm 0.71 0.53 ≥0.45
Coefficient of water permeability ml/min 0 2.3 ≤10
Noise (F) dB 66.8 71.6 /
Example 6
The invention relates to a preparation method of an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance technology, which comprises the following steps: (1) preparation of super-viscous emulsified asphalt
1) Preparing parent asphalt:
Figure BDA0002637493610000211
the preparation process comprises the following steps: heating Clarity 70# matrix asphalt to 175 ℃, adding a thermoplastic elastomer hydrogenated SIS into the Clarity 70# matrix asphalt, shearing for 1h by a high-speed shearing machine, adding oil KN-4010 in rubber oil and oil KN-4010 in rubber oil, slowly adding sulfur after completely adding, stirring and developing for 6h, adding polyethylene wax at 115 ℃ and C9 hydrogenated petroleum resin after finishing the development, and stirring for 3h to prepare parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000212
the preparation method comprises the following steps: respectively adding Aksu 4819 and hydroxyethyl cellulose into 55 deg.C tap water, stirring, mixing, and adjusting pH to 2-2.5 with hydrochloric acid.
3) Preparing super-viscous emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a modified asphalt colloid mill according to the mass ratio of 0.37: 0.63, wherein the temperature of the soap solution is 55 ℃, the emulsifying temperature of the parent asphalt is 175 ℃ to prepare emulsified asphalt, and then compounding the emulsified asphalt and 60% solid SBR according to the mass ratio of 97: 3 to prepare the target product of the super-viscous emulsified asphalt.
(2) Slow-release type anti-freezing material
Acrylic polymer carrier: 100 portions of
Potassium acetate: 30 portions of
Ethylene glycol: 21 portions of
The preparation process comprises the following steps: slowly adding 30ml of acrylic acid polymer into 200ml of aqueous solution, stirring at the stirring speed of 800r/min for 40min to prepare acrylic acid suspension, adding ethylene glycol into the suspension, stirring at the stirring speed of 500r/min for 20min, adding metal salt, reducing the stirring speed to 100r/min, stirring for 30min, and performing pressure drying granulation to prepare the slow-release anti-freezing ice material.
(3) Aggregate preparation:
3-5mm steel slag: 100 portions of
The slow-release type anti-freezing material comprises the following components: 5.5 parts of
The aggregate is prepared by mixing a slow-release anti-freezing material and 3-5mm steel slag in mass ratio
(4) Surface protecting agent:
1) preparing parent asphalt:
Figure BDA0002637493610000221
the preparation process comprises the following steps: the matrix asphalt of Clarity 70# is heated to 175 ℃, then 10# asphalt, dicyclopentadiene resin and polyethylene wax at 110 ℃ are added into the matrix asphalt of Clarity 70# and stirred for 4 hours to prepare the parent asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000222
the preparation method comprises the following steps: respectively adding sodium laurate and Na serving as emulsifiers3SO4Adding into 55 deg.C tap water, stirring, mixing, and adjusting pH to 10-10.5 with 30% NaOH solution.
3) Preparing an intermediate anionic emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a colloid mill according to the mass ratio of 50: 50, wherein the temperature of the soap solution is 55 ℃, and the emulsifying temperature of the parent asphalt is 175 ℃ to prepare the intermediate anionic emulsified asphalt.
4) Preparing a surface protective agent:
intermediate anionic emulsified asphalt: 100 portions of
Aqueous vinyl acetate-acrylic emulsion: 80 portions
Polyoxypropylene polyoxyethylene glyceryl ether: 1.7 parts of
The preparation method comprises the following steps: and stirring and mixing the intermediate anionic emulsified asphalt cooled to room temperature, the aqueous vinyl acetate-acrylic emulsion and the polyoxypropylene polyoxyethylene glycerol ether uniformly to obtain the surface protective agent.
(5) The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction:
spreading amount of the super-viscous emulsified asphalt: 1.15Kg/m2
The spreading amount of the middle layer aggregate is as follows: 7.5Kg/m2
Spreading amount of the upper surface protective agent: 0.4Kg/m2。
The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction: the pavement maintenance technology comprises the steps of synchronously spraying the super-sticky emulsified asphalt and stone on a base surface, rolling, cleaning pumice on the surface, spraying the surface protective agent after cleaning, and demulsifying the surface protective agent to prepare the pavement maintenance technology with the functions of deicing, skid resistance and noise reduction.
(6) Comparative micro-surfacing technique
1) Preparing micro-surfacing emulsified asphalt: 600g of Bilong 70# asphalt is taken and heated to 140 ℃. A soap solution (400 g) containing 20g of a Maitrevisweedk MQK micro-surface emulsifier, 35 g of 1468 latex (produced by Maitrevisdk), tap water and an acid was adjusted to pH 2-3, heated to 60 ℃ and passed through a colloid mill to prepare an asphalt emulsion. Obtaining the uniform and fine cation slow-breaking quick-setting emulsified asphalt.
2) Preparing a micro-surfacing mixture:
taking 100 parts of aggregate (containing 50% of 0-3mm, 35% of 3-5mm and 15% of 5-8mm), adding 1.5 parts of cement, uniformly mixing, then adding 7 parts of water, uniformly mixing, finally adding 11.5 parts of micro-surfacing emulsified asphalt, uniformly mixing for 120 seconds, forming a test piece, and testing the performance.
Table 16 example 6 technical index test results for preparing super viscous emulsified asphalt
Figure BDA0002637493610000231
Table 17 results of technical index test for preparing surface protective agent in example 6
Figure BDA0002637493610000232
Figure BDA0002637493610000241
Table 18 example 6 preparation maintenance technical index test results
Detecting items Unit of EXAMPLE 6 curing technique Micro-surfacing technology Technical requirements
2h cohesion N*m 2.1 2.1 ≥2.0
1h wet wheel abrasion g/m2 314 362 ≤538
6d wet wheel abrasion g/m2 436 452 ≤807
Load wheel sticking sand g/m2 305 308 ≤450
Pendulum value BPN 74.4 71.4 ≥50
Build depth TD mm 0.62 0.53 ≥0.45
Coefficient of water permeability ml/min 0 2.3 ≤10
Noise (F) dB 67.6 71.6 /
Example 7
The invention relates to a preparation method of an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement maintenance technology, which comprises the following steps:
(1) preparation of super-viscous emulsified asphalt
1) Preparing parent asphalt:
Figure BDA0002637493610000242
the preparation process comprises the following steps: heating the substrate asphalt of Bilong 70# to 175 ℃, adding the thermoplastic elastomer SBS into the substrate asphalt of Bilong 70#, shearing for 1h by a high-speed shearing machine, adding oil-in-rubber KN4008 and oil-in-rubber KN4008, slowly adding sulfur after the addition is completed, stirring and developing for 4.5h, adding polyethylene wax at 145 ℃ and C5 modified C9 resin after the development is completed, and stirring for 3.5h to prepare the matrix asphalt.
2) Preparing a soap solution:
Figure BDA0002637493610000251
the preparation method comprises the following steps: emulsifier 18331 and CaCl2Adding into 55 deg.C tap water, stirring, mixing, and adjusting pH to 2-2.5 with hydrochloric acid.
3) Preparing super-viscous emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a modified asphalt colloid mill according to the mass ratio of 0.37: 0.63, wherein the temperature of the soap solution is 55 ℃, the emulsifying temperature of the parent asphalt is 175 ℃ to prepare emulsified asphalt, and then compounding the emulsified asphalt and 60% solid SBR according to the mass ratio of 97: 3 to prepare the target product of the super-viscous emulsified asphalt.
(2) Slow-release type anti-freezing material
Acrylic polymer carrier: 100 portions of
Sodium acetate: 60 portions of
Ethylene glycol: 22 portions of
The preparation process comprises the following steps: slowly adding 30ml of acrylic acid polymer into 200ml of aqueous solution, stirring at the stirring speed of 800r/min for 40min to prepare acrylic acid suspension, adding ethylene glycol into the suspension, stirring at the stirring speed of 500r/min for 20min, adding sodium acetate, reducing the stirring speed to 100r/min, stirring for 30min, and performing pressure drying granulation to prepare the slow-release anti-freezing ice material.
(3) Aggregate preparation:
3-5mm basalt: 100 portions of
The slow-release type anti-freezing material comprises the following components: 4 portions of
The aggregate is prepared by mixing a slow-release anti-freezing material and 3-5mm basalt in mass ratio
(4) Surface protecting agent:
1) preparing parent asphalt:
Figure BDA0002637493610000252
the preparation process comprises the following steps: heating the Bilong 70# base asphalt to 175 ℃, then adding the oxidized asphalt, the fumaric acid modified petroleum resin and the polyethylene wax at 107 ℃ into the Bilong 70# base asphalt, and stirring for 4 hours to prepare the parent asphalt.
2) Preparing a soap solution:
tap water: 100 portions of
KZW-803Y: 1 part of
Na3PO4: 0.6 part
30% NaOH solution: 0.13 part
The preparation method comprises the following steps: respectively mixing emulsifier KZW-803Y and emulsifier Na3PO4Adding into 55 deg.C tap water, stirring, mixing, and adjusting pH to 10-10.5 with 30% NaOH solution.
3) Preparing an intermediate anionic emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a colloid mill according to the mass ratio of 50: 50, wherein the temperature of the soap solution is 55 ℃, and the emulsifying temperature of the parent asphalt is 175 ℃ to prepare the intermediate anionic emulsified asphalt.
4) Preparing a surface protective agent:
intermediate anionic emulsified asphalt: 100 portions of
Water-based styrene-acrylic emulsion: 75 portions of
Polydimethylsiloxane: 1.2 parts of
The preparation method comprises the following steps: and stirring and mixing the intermediate anionic emulsified asphalt cooled to room temperature, the water-based styrene-acrylic emulsion and the polydimethylsiloxane uniformly to obtain the surface protective agent.
(5) The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction:
spreading amount of the super-viscous emulsified asphalt: 1.2Kg/m2
The spreading amount of the middle layer aggregate is as follows: 8Kg/m2
Spreading amount of the upper surface protective agent: 0.3Kg/m2。
The preparation of the pavement maintenance technology for deicing, anti-skidding and noise reduction: the pavement maintenance technology comprises the steps of synchronously spraying the super-sticky emulsified asphalt and stone on a base surface, rolling, cleaning pumice on the surface, spraying the surface protective agent after cleaning, and demulsifying the surface protective agent to prepare the pavement maintenance technology with the functions of deicing, skid resistance and noise reduction.
(6) Comparative micro-surfacing technique
1) Preparing micro-surfacing emulsified asphalt: 600g of Bilong 70# asphalt is taken and heated to 140 ℃. A soap solution (400 g) containing 20g of a Maitrevisweedk MQK micro-surface emulsifier, 35 g of 1468 latex (produced by Maitrevisdk), tap water and an acid was adjusted to pH 2-3, heated to 60 ℃ and passed through a colloid mill to prepare an asphalt emulsion. Obtaining the uniform and fine cation slow-breaking quick-setting emulsified asphalt.
2) Preparing a micro-surfacing mixture:
taking 100 parts of aggregate (containing 50% of 0-3mm, 35% of 3-5mm and 15% of 5-8mm), adding 1.5 parts of cement, uniformly mixing, then adding 7 parts of water, uniformly mixing, finally adding 11.5 parts of micro-surfacing emulsified asphalt, uniformly mixing for 120 seconds, forming a test piece, and testing the performance.
Table 19 example 7 technical index test results for preparation of super viscous emulsified asphalt
Figure BDA0002637493610000261
Figure BDA0002637493610000271
Table 20 results of technical index test for preparing surface protective agent in example 7
Index (I) Unit of Surface protective agent Technical requirements Test method
Appearance state - Liquid state Liquid state -
Solid content ％ 51.2 ≥43 GB/T-2793
Time to surface dry min 25 ≤60 GB/T-16777
Adhesion pull strength (20 ℃ C.) MPa 1.61 ≥1.0 JC/T975-2005
Adhesion pull strength (20 ℃ C.) MPa 0.81 ≥0.7 JC/T975-2005
TABLE 21 example 7 preparation maintenance technical index test results
Figure BDA0002637493610000272
Figure BDA0002637493610000281
The invention adopts PG88-28 super-viscous composite modified emulsified asphalt with good high and low temperature performance, which has higher viscosity, the viscosity at 60 ℃ is more than 50000Pa s, the softening point is more than 80 ℃, and the ductility at 5 ℃ is more than 20 cm; the slow-release type anti-icing material combines the inorganic anti-icing material on the acrylic resin porous material by adopting a drug slow-release concept, has a good slow-release effect, and has a service life longer than 5 years; the mineral aggregate is special stone or steel slag for paving a steel bridge deck, and has better skid resistance and wear resistance. The protective agent adopts the technology of modifying emulsified asphalt by aqueous resin emulsion, and the material has stronger bonding strength and wheel sticking prevention performance; the invention adopts the aggregate with the single grain diameter of 3-5mm, has larger porosity, solves the problem of larger noise in the traditional maintenance technology, and reduces the noise reduction performance by 4-6 dB at a micro surface and by 1-3 dB at a common fine surface. Therefore, the maintenance technology formed by the two-oil-stone scheme has better active anti-icing, anti-sliding and noise reduction performances.

Claims (10)

1. A method for maintaining an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement is characterized by comprising the following steps: firstly, synchronously spraying the super-viscous emulsified asphalt and aggregate on a base surface, rolling, cleaning the surface, then spraying the surface protective agent on the upper surface, and after the protective agent is demulsified,
the preparation method of the super-viscous emulsified asphalt comprises the following steps:
(1) preparing parent asphalt: heating the matrix asphalt, adding a thermoplastic elastomer, shearing by a high-speed shearing machine, adding rubber oil and sulfur, stirring and developing for 4-6 hours, adding an auxiliary agent A and an auxiliary agent B after the development is finished, and stirring to obtain matrix asphalt for later use;
(2) preparing a soap solution: respectively adding a cationic emulsifier and a super-viscous emulsified asphalt stabilizer into tap water, stirring and mixing, and then adjusting the pH value to 2-2.5 by using a hydrochloric acid solution for later use;
(3) preparing super-viscous emulsified asphalt: grinding and emulsifying the soap solution and the parent asphalt by a modified asphalt colloid mill to prepare emulsified asphalt, and compounding the emulsified asphalt with 60% solid content SBR;
the preparation method of the aggregate comprises the following steps: the aggregate is formed by mixing a slow-release anti-freezing material and basalt or steel slag;
the preparation method of the surface protective agent comprises the following steps: and stirring and mixing the intermediate anionic emulsified asphalt, the resin emulsion and the defoaming agent uniformly to obtain the surface protective agent.
2. The method for maintaining an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement according to claim 1, which is characterized in that: the preparation method of the intermediate anionic emulsified asphalt comprises the following steps:
(1) preparing parent asphalt: the preparation process comprises the following steps: adding the aid A, the aid B and the aid C into the matrix asphalt and stirring;
(2) preparing a soap solution: respectively adding an anionic emulsifier and a surface protective agent stabilizer into tap water, stirring and mixing, and then adjusting the pH value to 10-10.5 by using a NaOH solution;
(3) preparing an intermediate anionic emulsified asphalt: and grinding and emulsifying the soap solution and the parent asphalt by a colloid mill.
3. The method for maintaining an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement according to claim 1, which is characterized in that: the matrix asphalt is 70# matrix asphalt such as Bilong 70# asphalt, SK70# asphalt, Sitai 70# asphalt, GS70# asphalt, Zhehai 70# asphalt and Clarityl 70# asphalt.
4. The method for maintaining an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement according to claim 1, which is characterized in that: the thermoplastic elastomer is one or a mixture of any two of a styrene and butadiene block copolymer SBS, a styrene butadiene rubber SBR, a hydrogenated styrene-butadiene block copolymer SEBS, a styrene-ethylene-propylene-styrene type block copolymer SEPS, a styrene-isoprene-styrene triblock copolymer SIS or a hydrogenated styrene-isoprene-styrene triblock copolymer hydrogenated SIS.
5. The method for maintaining an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement according to claim 1 or 2, which is characterized in that: the additive A is polyethylene wax; the auxiliary agent B is rosin resin, terpene resin, C5 petroleum resin, C9 petroleum resin, C5 hydrogenated petroleum resin, C9 hydrogenated petroleum resin, C5 modified C9 resin, C9 modified C5 resin, coumarone resin, piperylene resin, dicyclopentadiene resin or fumaric acid modified petroleum resin; the auxiliary agent C is rock asphalt, lake asphalt, oxidized asphalt, sulfonated asphalt, 0# asphalt and 10# asphalt.
6. The method for maintaining an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement according to claim 1, which is characterized in that: the cationic emulsifier is AA-63D, Aksu 4819, 1831 and 18331.
7. The method for maintaining an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement according to claim 1, which is characterized in that: the super-viscous emulsified asphalt stabilizer is sodium carboxymethylcellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, hydroxypropyl cellulose, CaCl2、NH4One or a mixture of any two of Cl; the surface protective agent stabilizer is Na2SO4、Na3PO4One or a mixture of any two of sodium carboxymethylcellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose and hydroxypropyl cellulose.
8. The method for maintaining an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement according to claim 1, which is characterized in that: the resin emulsion is water-based polyurethane emulsion, water-based pure acrylic emulsion, water-based styrene-acrylic emulsion, water-based epoxy resin emulsion, water-based silicone acrylic emulsion and water-based vinyl acetate acrylic emulsion.
9. The method for maintaining an anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement according to claim 1, which is characterized in that: the defoaming agent is emulsified silicone oil, a high-alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane.
10. According to claimThe method for maintaining the anti-skid, noise-reducing and slow-release type anti-freezing asphalt pavement according to claim 1 is characterized by comprising the following steps: the spreading amount of the super-viscous emulsified asphalt is 0.8-1.3kg/m2(ii) a The spreading amount of the aggregate is 6-8kg/m2(ii) a The spreading amount of the surface protective agent is 0.3-0.5kg/m2。
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