CN109574550A - Asphalt concrete pavement pit repairing material and preparation method - Google Patents

Asphalt concrete pavement pit repairing material and preparation method Download PDF

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Publication number
CN109574550A
CN109574550A CN201811642250.XA CN201811642250A CN109574550A CN 109574550 A CN109574550 A CN 109574550A CN 201811642250 A CN201811642250 A CN 201811642250A CN 109574550 A CN109574550 A CN 109574550A
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parts
concrete pavement
asphalt concrete
preparation
repairing material
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CN109574550B (en
Inventor
石鹏程
沈菊男
沙广璟
宋旭艳
李新生
祝鸿
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Suzhou University of Science and Technology
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Suzhou University of Science and Technology
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/26Bituminous materials, e.g. tar, pitch
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/12Esters of monohydric alcohols or phenols
    • C08F220/14Methyl esters, e.g. methyl (meth)acrylate
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/72Repairing or restoring existing buildings or building materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/76Use at unusual temperatures, e.g. sub-zero

Abstract

The invention discloses a kind of asphalt concrete pavement pit repairing materials, by weight include following components: 4.5-4.8 parts of pitch, 88-92 parts of regenerated aggregate, 1.2-1.5 parts of diluent, 3-5 parts of modified filler, 0.01-0.05 parts of antistripping agent;The diluent includes following components by weight: 85-90 parts of kerosene, 3-5 parts of petroleum ether, 5-8 parts of alcohols material, 0.5-1 parts of thinner;The modified filler includes following components by weight: 15-25 parts of expanded graphite, 40-65 parts of bentonite, 10-15 parts of calcium sulphate dihydrate, 1-5 parts of flyash, 5-8 parts of miberal powder;The antistripping agent includes following components by weight: 50-65 parts of methyl sodiosul foaliphatate, 15-25 parts of fatty alcohol polyoxyethylene ether, 3-8 parts of dodecyl azochlorosulfonate propyl lycine.Asphalt concrete pavement pit repairing material disclosed by the invention has higher early strength, gathers materials more preferable with the adhesiveness of pitch, while water stability is more preferable.

Description

Asphalt concrete pavement pit repairing material and preparation method
Technical field
The present invention relates to asphalt concrete pavements to repair field, in particular to a kind of asphalt concrete pavement pit repairing material Material and preparation method.
Background technique
Bituminous concrete is that current highway pavement should have more pavement material, with surfacing, seamless, noise The advantages that small.But due to being influenced by material and application environment, asphalt concrete pavement after a longer time of use be easy by To destruction, wherein pit slot just belongs to a kind of common pavement damage form.
Asphalt cold repairing is the material that a kind of common road pavement pit slot carries out Rapid-Repair, mainly uses pitch and gathers materials It is mixed with patching material, is influenced by weather smaller, facilitates timely road pavement to be repaired, but existing pitch cold asphalt mixture Still remain that water stability is poor, early strength is low, the problems such as easily peeling off with pitch bonding force of gathering materials, someone is by introducing inorganic glue Gel material such as cement just solves the above problems to asphalt modification, however easy shrinkage cracking after hardening of cement, after asphalt modification Early strength is still undesirable.In addition, natural aggregate is increasingly deficienter with current natural mineral resources growing tension, and Gathering materials is most commonly used raw material in pitch cold-repairing material, therefore finds a kind of alternative materials and replace the use of natural aggregate to be also Current problem in need of consideration.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of pitch coagulation Soil surface pit repairing material and preparation method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of asphalt concrete pavement pit repairing Material, including following components: 4.5-4.8 parts of pitch, 88-92 parts of regenerated aggregate, 1.2-1.5 parts of diluent, modified filler 3-5 Part, 0.01-0.05 parts of antistripping agent;
The diluent includes following components by weight: 85-90 parts of kerosene, 3-5 parts of petroleum ether, and 5-8 parts of alcohols material, 0.5-1 parts of thinner;
The modified filler includes following components by weight: 15-25 parts of expanded graphite, 40-65 parts of bentonite, and two water sulphur Sour calcium 10-15 parts, 1-5 parts of flyash, 5-8 parts of miberal powder;
The antistripping agent includes following components by weight: 50-65 parts of methyl sodiosul foaliphatate, fatty alcohol polyoxy second 15-25 parts of alkene ether, 3-8 parts of dodecyl azochlorosulfonate propyl lycine.
Preferably, the pitch is any one in coal tar pitch, asphalt or bitumen.
Preferably, the regenerated aggregate be by building waste through it is broken, preferably, the obtained collection of different-grain diameter of cleaning Material.
Preferably, the regenerated aggregate includes gathering materials for 5-10mm and two kinds of partial sizes of 10-20mm.
Preferably, 5-10mm partial size gathers materials and gathers materials weight ratio with 10-20mm partial size for 0.8- in the regenerated aggregate 1.2:1。
Preferably, the alcohols material is the mixing of one or two of ethyl alcohol, propyl alcohol, butanol, amylalcohol or more.
Further, a kind of preparation method of asphalt concrete pavement pit repairing material, comprising the following steps:
1) thinner is prepared, and kerosene, petroleum ether, alcohols material and thinner are uniformly mixed into 2-3min and diluted Agent;
2) pitch is heated to 130-140 DEG C, and diluent is added, stir evenly and be added when being cooled to 90-100 DEG C anti- Exfoliant is uniformly mixing to obtain liquid asphalt;
3) regenerated aggregate and modified filler are uniformly mixed and are heated to 80-100 DEG C, put into liquid bitumen and uniformly mixed Close 1-2min.
Preferably, the thinner the preparation method comprises the following steps: equipped with blender, thermometer and separatory funnel reaction kettle In, 100-200 part of dichloroethane solvent and heating by weight is added, put into 20-35 parts lauroleic acid and 15-25 parts Methylpropene sodium sulfonate is simultaneously continuously heating to 60-80 degree, then 0.3-0.5 parts of initiator and 28-36 parts of propylene are added dropwise respectively The mixed monomer solution that sour methyl esters, 18-27 parts of acrylamide is made into, at the uniform velocity dropwise addition 2-3h carry out copolyreaction, completion of dropwise addition After keep the temperature 1-2h, sodium hydroxide is added after reaction and adjusts PH to 8-9, the obtained copolymer of distillation removal solvent is liquid Thinner;Wherein the initiator is azodiisobutyronitrile or azobisisoheptonitrile.
Preferably, the antistripping agent the preparation method comprises the following steps: by methyl sodiosul foaliphatate, aliphatic alcohol polyethenoxy Ether, dodecyl azochlorosulfonate propyl lycine are heated to 40-60 DEG C of uniformly mixing.
Preferably, the modified filler the preparation method comprises the following steps: expanded graphite, bentonite, calcium sulphate dihydrate are uniformly mixed Merge through 250-350 DEG C of high-temperature calcination 2-3h, then flyash and miberal powder is added after cooling room temperature and is uniformly uniformly mixed and grinds To 120 mesh.
The beneficial effects of the present invention are:
(1) present invention accelerates the volatilization of diluent in patching material by the improvement to diluent, and it is viscous to reduce patching material Degree accelerates patching material speed of application and improves early strength, enhances the adhesiveness gathered materials with pitch by antistripping agent.
(2) present invention introduces modified filler in expanded graphite and bentonite there is loose porous structure, when road surface is cheated In the presence of having moisture in slot, the easily inflated graphite of moisture and bentonite adsorption calcine production into porous structure and with calcium sulphate dihydrate Object reaction, in addition the surfactant in antistripping agent can improve the absorption property to gather materials with asphalt surface, can further hinder Water proof point enters interface, and enhancing is gathered materials and pitch caking property, to improve water stability.
(3) present invention replaces natural aggregate to prepare asphalt concrete pavement pit repairing material using regenerated aggregate, that is, saves About natural aggregate, and recycling waste has been carried out to building waste, conducive to the protection of ecological environment.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification Text can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more The presence or addition of a other elements or combinations thereof.
A kind of asphalt concrete pavement pit repairing material disclosed by the invention, including following components: pitch 4.5-4.8 Part, 88-92 parts of regenerated aggregate, 1.2-1.5 parts of diluent, 3-5 parts of modified filler, 0.01-0.05 parts of antistripping agent;
Wherein, pitch is any one in coal tar pitch, asphalt or bitumen.
Wherein, regenerated aggregate be by building waste through it is broken, preferably, cleaning obtained different-grain diameter gather materials, including 5- 10mm and two kinds of partial sizes of 10-20mm gather materials, and it is 0.8- that the 5-10mm partial size, which gathers materials with 10-20mm partial size weight ratio of gathering materials, 1.2:1.Aggregate grading is affected to patching material performance, according to gathering materials for single particle size, since gradation is single, in material Portion's voidage is big, and intensity, water resistant evil performance are poor, and use the aggregate grading of different-grain diameter more reasonable, cheats after compacting Slot structure compact voids rate is small, is effective against the non-deformability of road surface compression after water damage invasion and hardening;And if adopted With three kinds or the aggregate of a variety of size gradings, then preferred increase workload and difficulty can be sieved to regenerated aggregate, while can also drop Low practice of construction efficiency, therefore in the case where two kinds of partial sizes meet the requirements without a variety of gradations;In addition using regeneration collection Material replaces natural aggregate to prepare pavement patching material, that is, has saved natural aggregate, and carried out waste circulation to building waste It utilizes.
Wherein, diluent includes following components by weight: 85-90 parts of kerosene, 3-5 parts of petroleum ether, and alcohols material 5-8 Part, 0.5-1 parts of thinner;Wherein alcohols material is the mixing of one or two of ethyl alcohol, propyl alcohol, butanol, amylalcohol or more.Mesh The preceding diluent used is generally diesel oil or kerosene, and to be diluted dose of pitch cold-repairing material need are evaporated completely in practical repairing work, road surface Early strength just will form, and the petroleum ether and alcohols material boiling point that introduce in the present invention are lower than kerosene, therefore modified dilution Agent accelerates evaporation rate because boiling point reduces, and in addition thinner can accelerate the mixing velocity of pitch and diluent, utilize the moon The molecular characterization and macromolecule dispersion mechanism of osmanthus olefin(e) acid copolymer, destruction colloid, the plane of asphaltene molecules pile up, make to tie Structure becomes loosely, to reduce the viscosity of pitch cold-repairing material, can act on by strong hydrogen bonding into resin and asphalt sheet molecule Between, molecule aggregate made of plane overlapping accumulation is broken, solvated layer is formed in asphalitine fragrant slice surrounding molecules, causes Fragrant slice haphazard packing, spatial extent degree reduce, to reduce the viscosity of system, improve material fluidity, accelerate speed of application, Accelerate pitch cold-repairing material early strength to be formed.
Wherein, modified filler includes following components by weight: 15-25 parts of expanded graphite, 40-65 parts of bentonite, and two water 10-15 parts of calcium sulfate, 1-5 parts of flyash, 5-8 parts of miberal powder.Expanded graphite and bentonite have loose porous in modified filler Structure, bentonite can successively lose surface water, the combination water in skeleton structure, the machine object in duct in the case where high-temperature calcination Pollutant causes porosity to increase, and structure is more loose, and specific surface area becomes larger, so that absorption property is further enhanced;And Calcium sulphate dihydrate can also lose the crystallization water through high temperature and form active half-H 2 O calcium sulphate or calcium oxide in modified filler, react with water The skeleton function of patching material can be enhanced in the hydrated product of formation.In the presence of having moisture in the pit slot of road surface, moisture is easily swollen Swollen graphite and bentonite adsorption are reacted into porous structure and with half-H 2 O calcium sulphate, calcium oxide, and flyash and miberal powder can be into One step fills the aggregate void in closely knit patching material, and then enhances the sum aggregate material-asphalt interface that gathers materials, and improves the morning of patching material Phase intensity and water stability.
Wherein, antistripping agent includes following components by weight: 50-65 parts of methyl sodiosul foaliphatate, fatty alcohol polyoxy 15-25 parts of vinethene, 3-8 parts of dodecyl azochlorosulfonate propyl lycine.Component in antistripping agent is surfactant, can be with It is adsorbed on and gathers materials and asphalt surface, improve its surface adhesion performance, enhancing is gathered materials and asphalt surface caking property, its water resistant damage is improved Evil property, and methyl sodiosul foaliphatate is anionic surfactant, fatty alcohol polyoxyethylene ether is non-ionic surfactant Agent, dodecyl azochlorosulfonate propyl lycine are amphoteric surfactant, and different types of surfactant can act on acid, alkali Property or neutrality etc. be different types of to gather materials and filler surface.
Further, a kind of preparation method of asphalt concrete pavement pit repairing material, comprising the following steps:
1) thinner is prepared, and kerosene, petroleum ether, alcohols material and thinner are uniformly mixed into 2-3min and diluted Agent;
2) pitch is heated to 130-140 DEG C, and diluent is added, stir evenly and be added when being cooled to 90-100 DEG C anti- Exfoliant is uniformly mixing to obtain liquid asphalt;
3) regenerated aggregate and modified filler are uniformly mixed and are heated to 80-100 DEG C, put into liquid bitumen and uniformly mixed Close 1-2min.
Wherein, thinner the preparation method comprises the following steps: equipped with blender, thermometer and separatory funnel reaction kettle in, be added 100-200 parts of dichloroethane solvent and heating by weight put into 20-35 parts of lauroleic acid and 15-25 parts of methyl-prop Alkene sodium sulfonate is simultaneously continuously heating to 60-80 degree, then be added dropwise respectively 0.3-0.5 parts of initiator and 28-36 parts of methyl acrylate, The mixed monomer solution that 18-27 parts of acrylamide is made into, at the uniform velocity dropwise addition 2-3h carry out copolyreaction, keep the temperature 1- after completion of dropwise addition Sodium hydroxide is added after reaction and adjusts PH to 8-9 by 2h, and the copolymer that distillation removal solvent obtains is liquid thinner, Wherein initiator is azodiisobutyronitrile or azobisisoheptonitrile.
Wherein, modified filler the preparation method comprises the following steps: uniformly mixing and passing through expanded graphite, bentonite, calcium sulphate dihydrate Flyash and miberal powder is added after 250-350 DEG C of high-temperature calcination 2-3h, then cooling room temperature to be uniformly uniformly mixed and be ground to 120 Mesh.
Wherein antistripping agent the preparation method comprises the following steps: by methyl sodiosul foaliphatate, fatty alcohol polyoxyethylene ether, dodecyl Azochlorosulfonate propyl lycine is heated to 40-60 DEG C of uniformly mixing.
It is exemplified below out some specific embodiments and comparative example.
Embodiment one
A kind of asphalt concrete pavement pit repairing material, including following components: 4.5 parts of pitch, 90 parts of regenerated aggregate, dilute Release 1.5 parts of agent, 4 parts of modified filler, 0.05 part of antistripping agent.
Wherein, pitch is coal tar pitch.
Wherein, regenerated aggregate includes gathering materials for 5-10mm and two kinds of partial sizes of 10-20mm, the 5-10mm partial size gather materials with 10-20mm partial size gathers materials weight ratio for 1.2:1.
Wherein, diluent includes following components by weight: 90 parts of kerosene, 4 parts of petroleum ether, and 5 parts of alcohols material, thinner 1 part;Wherein alcohols material be propyl alcohol, thinner the preparation method comprises the following steps: be equipped with blender, thermometer and separatory funnel reaction In kettle, 100 parts of dichloroethane solvent and heating by weight is added, puts into 20 parts of lauroleic acid and 25 parts of metering system Sodium sulfonate is simultaneously continuously heating to 60 degree, then be added dropwise respectively 0.3 part of azodiisobutyronitrile initiator and 28 parts of methyl acrylate, The mixed monomer solution that 27 parts of acrylamide is made into, at the uniform velocity dropwise addition 2h carry out copolyreaction, 1h are kept the temperature after completion of dropwise addition, react After sodium hydroxide be added adjust PH to 8, the obtained copolymer of distillation removal solvent is liquid thinner.
Wherein, modified filler includes following components by weight: 25 parts of expanded graphite, 55 parts of bentonite, and calcium sulphate dihydrate 10 parts, 5 parts of flyash, 5 parts of miberal powder.Modified filler the preparation method comprises the following steps: expanded graphite, bentonite, calcium sulphate dihydrate is uniform It mixes and addition flyash and miberal powder is uniformly uniformly mixed and is ground to 120 through 350 DEG C of high-temperature calcination 2h, then after cooling room temperature Mesh.
Wherein, antistripping agent includes following components by weight: 50 parts of methyl sodiosul foaliphatate, aliphatic alcohol polyethenoxy 15 parts of ether, 5 parts of dodecyl azochlorosulfonate propyl lycine.Antistripping agent the preparation method comprises the following steps: by methyl sodiosul foaliphatate, fatty alcohol Polyoxyethylene ether, dodecyl azochlorosulfonate propyl lycine are heated to 60 DEG C of uniformly mixing.
The embodiment preparation method is as follows:
1) thinner is prepared, and kerosene, petroleum ether, propyl alcohol and thinner are uniformly mixed into 2min and obtain diluent;
2) pitch is heated to 130 DEG C, and diluent is added, stir evenly and antistripping agent is added when being cooled to 100 DEG C, It is uniformly mixing to obtain liquid asphalt;
3) regenerated aggregate and modified filler are uniformly mixed and are heated to 90 DEG C, put into liquid asphalt and uniformly mixed Close 1min.
Embodiment two
A kind of asphalt concrete pavement pit repairing material, including following components: 4.8 parts of pitch, 89 parts of regenerated aggregate, dilute Release 1.2 parts of agent, 5 parts of modified filler, 0.01 part of antistripping agent.
Wherein, pitch is asphalt.
Wherein, regenerated aggregate includes gathering materials for 5-10mm and two kinds of partial sizes of 10-20mm, the 5-10mm partial size gather materials with 10-20mm partial size gathers materials weight ratio for 1:1.
Wherein, diluent includes following components by weight: 88 parts of kerosene, 5 parts of petroleum ether, and 7 parts of alcohols material, thinner 1 part;Wherein alcohols material be butanol, thinner the preparation method comprises the following steps: be equipped with blender, thermometer and separatory funnel reaction In kettle, 200 parts of dichloroethane solvent and heating by weight is added, puts into 35 parts of lauroleic acid and 25 parts of metering system Sodium sulfonate is simultaneously continuously heating to 80 degree, then be added dropwise respectively 0.5 part of azodiisobutyronitrile initiator and 28 parts of methyl acrylate, The mixed monomer solution that 18 parts of acrylamide is made into, at the uniform velocity dropwise addition 3h carry out copolyreaction, 2h are kept the temperature after completion of dropwise addition, react After sodium hydroxide be added adjust PH to 9, the obtained copolymer of distillation removal solvent is liquid thinner.
Wherein, modified filler includes following components by weight: 15 parts of expanded graphite, 60 parts of bentonite, and calcium sulphate dihydrate 15 parts, 3 parts of flyash, 7 parts of miberal powder.Modified filler the preparation method comprises the following steps: expanded graphite, bentonite, calcium sulphate dihydrate is uniform It mixes and addition flyash and miberal powder is uniformly uniformly mixed and is ground to 120 through 250 DEG C of high-temperature calcination 3h, then after cooling room temperature Mesh.
Wherein, antistripping agent includes following components by weight: 65 parts of methyl sodiosul foaliphatate, aliphatic alcohol polyethenoxy 25 parts of ether, 3 parts of dodecyl azochlorosulfonate propyl lycine.Antistripping agent the preparation method comprises the following steps: by methyl sodiosul foaliphatate, fatty alcohol Polyoxyethylene ether, dodecyl azochlorosulfonate propyl lycine are heated to 60 DEG C of uniformly mixing.
The embodiment preparation method is as follows:
1) thinner is prepared, and kerosene, petroleum ether, butanol and thinner are uniformly mixed into 3min and obtain diluent;
2) pitch is heated to 140 DEG C, and diluent is added, stir evenly and antistripping agent is added when being cooled to 90 DEG C, It is uniformly mixing to obtain liquid asphalt;
3) regenerated aggregate and modified filler are uniformly mixed and are heated to 80 DEG C, put into liquid asphalt and uniformly mixed Close 2min.
Embodiment three
A kind of asphalt concrete pavement pit repairing material, including following components: 4.7 parts of pitch, 91 parts of regenerated aggregate, dilute Release 1.3 parts of agent, 3 parts of modified filler, 0.03 part of antistripping agent.
Wherein, pitch is any one in coal tar pitch, asphalt or bitumen.
Wherein, regenerated aggregate includes gathering materials for 5-10mm and two kinds of partial sizes of 10-20mm, the 5-10mm partial size gather materials with 10-20mm partial size gathers materials weight ratio for 0.8:1.
Wherein, diluent includes following components by weight: 86 parts of kerosene, 5 parts of petroleum ether, and 8 parts of alcohols material, thinner 1 part;Wherein alcohols material be amylalcohol, thinner the preparation method comprises the following steps: be equipped with blender, thermometer and separatory funnel reaction In kettle, 150 parts of dichloroethane solvent and heating by weight is added, puts into 30 parts of lauroleic acid and 20 parts of metering system Sodium sulfonate is simultaneously continuously heating to 70 degree, then be added dropwise respectively 0.4 part of azobisisoheptonitrile initiator and 32 parts of methyl acrylate, The mixed monomer solution that 24 parts of acrylamide is made at the uniform velocity is added dropwise 2 and carries out copolyreaction, 1.5h kept the temperature after completion of dropwise addition, instead Sodium hydroxide is added after answering and adjusts PH to 8, the copolymer that distillation removal solvent obtains is liquid thinner.
Wherein, modified filler includes following components by weight: 20 parts of expanded graphite, 60 parts of bentonite, and calcium sulphate dihydrate 12 parts, 3 parts of flyash, 5 parts of miberal powder.Modified filler the preparation method comprises the following steps: expanded graphite, bentonite, calcium sulphate dihydrate is uniform It mixes and addition flyash and miberal powder is uniformly uniformly mixed and is ground to through 300 DEG C of high-temperature calcination 2.5h, then after cooling room temperature 120 mesh.
Wherein, antistripping agent includes following components by weight: 60 parts of methyl sodiosul foaliphatate, aliphatic alcohol polyethenoxy 20 parts of ether, 5 parts of dodecyl azochlorosulfonate propyl lycine.Antistripping agent the preparation method comprises the following steps: by methyl sodiosul foaliphatate, fatty alcohol Polyoxyethylene ether, dodecyl azochlorosulfonate propyl lycine are heated to 60 DEG C of uniformly mixing.
The embodiment preparation method is as described below:
1) thinner is prepared, and kerosene, petroleum ether, amylalcohol and thinner are uniformly mixed into 2.5min and obtain diluent;
2) pitch is heated to 135 DEG C, and diluent is added, stir evenly and antistripping agent is added when being cooled to 95 DEG C, It is uniformly mixing to obtain liquid asphalt;
3) regenerated aggregate and modified filler are uniformly mixed and are heated to 100 DEG C, put into liquid-liquid pitch simultaneously Uniformly mixing 1.5min.
Comparative example one
A kind of asphalt concrete pavement pit repairing material, including following components: 4.5 parts of pitch, 90 parts of natural aggregate, mine 4 parts of powder, 1.5 parts of diluent, wherein pitch is coal tar pitch, and aggregate size includes 5-10mm and 10-20mm and the two weight ratio For 1:1, diluent is kerosene.The preparation method is as follows:
1) pitch is heated to 130 DEG C, and diluent is added, be uniformly mixing to obtain liquid asphalt;
2) it will gather materials and 90 DEG C are uniformly mixed and be heated to miberal powder;
3) gathering materials after heating is dosed to liquid asphalt with miberal powder and uniformly mixes 1min.
Comparative example two
A kind of asphalt concrete pavement pit repairing material, including following components: 4.8 parts of pitch, 89 parts of regenerated aggregate, mine 5 parts of powder, 1.2 parts of diluent, wherein pitch is asphalt, and aggregate size 10-20mm, diluent is kerosene.Preparation method It is as follows:
1) pitch is heated to 140 DEG C, and diluent is added, be uniformly mixing to obtain liquid asphalt;
2) it will gather materials and 80 DEG C are uniformly mixed and be heated to miberal powder;
3) gathering materials after heating is dosed to liquid asphalt with miberal powder and uniformly mixes 2min.
The following are the performance test results of above-described embodiment and comparative example:
Wherein test method is referring to JTG E20-2011 " highway engineering pitch and Asphalt Mixture Experiment regulation " and JTG The method of F40-2004 " standard specification for construction and acceptance of highway asphalt pavement ", adhesion property using water-boiling method test, with determine pitch and Aggregate adhesion grade;Early stage Marshall stability conserves 6h in room temperature for test specimen and directly demoulds test, to determine early strength;Leaching The water stability for drawing and testing to determine patching material is split in water Marshall stability and freeze thawing.This hair known to above-mentioned test data It is bright that there is higher early strength compared with comparative example, gather materials more preferable with the adhesiveness of pitch, while anti-water damage and water stability More preferably.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited In specific details.

Claims (10)

1. a kind of asphalt concrete pavement pit repairing material, which is characterized in that by weight include following components: pitch 4.5- 4.8 parts, 88-92 parts of regenerated aggregate, 1.2-1.5 parts of diluent, 3-5 parts of modified filler, 0.01-0.05 parts of antistripping agent;
The diluent includes following components by weight: 85-90 parts of kerosene, 3-5 parts of petroleum ether, and 5-8 parts of alcohols material, viscosity reduction 0.5-1 parts of agent;
The modified filler includes following components by weight: 15-25 parts of expanded graphite, 40-65 parts of bentonite, and calcium sulphate dihydrate 10-15 parts, 1-5 parts of flyash, 5-8 parts of miberal powder;
The antistripping agent includes following components by weight: 50-65 parts of methyl sodiosul foaliphatate, fatty alcohol polyoxyethylene ether 15-25 parts, 3-8 parts of dodecyl azochlorosulfonate propyl lycine.
2. asphalt concrete pavement pit repairing material according to claim 1, which is characterized in that the pitch is coal tar Any one in pitch, asphalt or bitumen.
3. asphalt concrete pavement pit repairing material according to claim 1, which is characterized in that the regenerated aggregate is By building waste through it is broken, preferably, cleaning obtained different-grain diameter gathers materials.
4. asphalt concrete pavement pit repairing material according to claim 3, which is characterized in that the regenerated aggregate packet Include gathering materials for 5-10mm and two kinds of partial sizes of 10-20mm.
5. asphalt concrete pavement pit repairing material according to claim 4, which is characterized in that in the regenerated aggregate 5-10mm partial size, which gathers materials, gathers materials weight ratio with 10-20mm partial size for 0.8-1.2:1.
6. asphalt concrete pavement pit repairing material according to claim 1, which is characterized in that the alcohols material is The mixing of the one or two of ethyl alcohol, propyl alcohol, butanol, amylalcohol or more.
7. a kind of preparation method of asphalt concrete pavement pit repairing material, which comprises the following steps:
1) thinner is prepared, and kerosene, petroleum ether, alcohols material and thinner are uniformly mixed into 2-3min and obtain diluent;
2) pitch is heated to 130-140 DEG C, and diluent is added, stir evenly and anti-strip is added when being cooled to 90-100 DEG C Agent is uniformly mixing to obtain liquid asphalt;
3) regenerated aggregate and modified filler are uniformly mixed and are heated to 80-100 DEG C, put into liquid bitumen and uniformly mix 1- 2min。
8. the preparation method of asphalt concrete pavement pit repairing material according to claim 7, which is characterized in that described Thinner the preparation method comprises the following steps: in the reaction kettle equipped with blender, thermometer and separatory funnel, 100- by weight is added 200 parts of dichloroethane solvent and heating, put into 20-35 parts of lauroleic acid and 15-25 parts of methylpropene sodium sulfonate and after It is continuous to be warming up to 60-80 degree, then 0.3-0.5 parts of initiator and the third of 28-36 parts of methyl acrylate, 18-27 parts is added dropwise respectively The mixed monomer solution that acrylamide is made into, at the uniform velocity dropwise addition 2-3h carry out copolyreaction, 1-2h are kept the temperature after completion of dropwise addition, reaction terminates Sodium hydroxide is added afterwards and adjusts PH to 8-9, the copolymer that distillation removal solvent obtains is liquid thinner;The wherein initiation Agent is azodiisobutyronitrile or azobisisoheptonitrile.
9. the preparation method of asphalt concrete pavement pit repairing material according to claim 7, which is characterized in that described Antistripping agent the preparation method comprises the following steps: by methyl sodiosul foaliphatate, fatty alcohol polyoxyethylene ether, dodecyl azochlorosulfonate propyl lycine It is heated to 40-60 DEG C of uniformly mixing.
10. the preparation method of asphalt concrete pavement pit repairing material according to claim 7, which is characterized in that institute State modified filler the preparation method comprises the following steps: expanded graphite, bentonite, calcium sulphate dihydrate are uniformly mixed and through 250-350 DEG C of height Temperature calcining 2-3h, then flyash and miberal powder is added after cooling room temperature and is uniformly uniformly mixed and is ground to 120 mesh.
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