CN108587563B - Asphalt adhesive and preparation method and application thereof - Google Patents
Asphalt adhesive and preparation method and application thereof Download PDFInfo
- Publication number
- CN108587563B CN108587563B CN201810468966.6A CN201810468966A CN108587563B CN 108587563 B CN108587563 B CN 108587563B CN 201810468966 A CN201810468966 A CN 201810468966A CN 108587563 B CN108587563 B CN 108587563B
- Authority
- CN
- China
- Prior art keywords
- asphalt
- binder
- parts
- modified asphalt
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
Abstract
The invention belongs to the technical field of asphalt additives, and particularly relates to an asphalt binder and a preparation method and application thereof. The modified asphalt is used as the main material, so that the high temperature resistance and the low temperature resistance of the adhesive are improved, and a foundation is provided for the anionic surfactant, the anthracene oil and the bentonite to play a role under the high temperature or low temperature condition; the invention utilizes the anionic surfactant to promote the mixing uniformity of the bentonite, the modified asphalt and the anthracene oil, and is beneficial to obtaining the adhesive with stable adhesive property; the invention utilizes anthracene oil to improve the permeability of each component of the asphalt binder, so that the asphalt binder permeates into the old asphalt structure, and the bonding strength of the asphalt binder is further improved. The results of the examples show that the bonding strength of the asphalt binder provided by the invention is more than or equal to 2.5 MPa.
Description
Technical Field
The invention belongs to the technical field of asphalt additives, and particularly relates to an asphalt binder and a preparation method and application thereof.
Background
The asphalt binder is a thin asphalt layer spread to reinforce the adhesion between the asphalt layer of the pavement and the cement concrete panel, and is commonly used in the following cases: firstly, before the upper layer of the double-layer or three-layer hot-mix hot-laid asphalt mixture pavement is laid, when an asphalt layer below the pavement is polluted; secondly, when an asphalt layer is additionally paved on the old asphalt pavement or the cement concrete pavement; and thirdly, when the newly paved asphalt mixture is contacted with the side surfaces of the kerbstone, the rainwater inlet or the inspection well. The asphalt material used as the conventional adhesive is generally quick-cracking spraying type emulsified asphalt, or quick-setting or medium-setting liquid petroleum asphalt or coal asphalt, and after the asphalt is sprayed, new asphalt layers and old asphalt layers can be bonded together, but the bonding firmness is not ideal, so that the building or repairing effect of roads is influenced.
Disclosure of Invention
The invention aims to provide an asphalt binder, which can penetrate into the lower asphalt layer to be bonded, thereby improving the bonding firmness between asphalt layers.
In order to achieve the above purpose, the invention provides the following technical scheme:
an asphalt binder comprising, in parts by mass: 100 parts of modified asphalt, 2-4 parts of anionic surfactant, 10-15 parts of anthracene oil, 7-15 parts of bentonite and 140-180 parts of water;
the modified asphalt comprises matrix asphalt and a normal-temperature asphalt modifier; the normal-temperature asphalt modifier accounts for 8-12% of the mass of the modified asphalt.
Preferably, the base asphalt comprises SBS modified asphalt.
Preferably, the normal-temperature asphalt modifier comprises rubber oil and a stabilizer, and the mass ratio of the rubber oil to the stabilizer is 3-5: 1.
Preferably, the stabilizer comprises an organic stabilizer and/or an inorganic stabilizer.
Preferably, the anionic surfactant comprises one or more of sulfonic acid anionic surfactant, carboxylic acid anionic surfactant and sulfuric acid oil anionic surfactant.
Preferably, the sulfonic acid anionic surfactant comprises sodium dodecylbenzene sulfonate or sodium dodecylphenyl ether disulfonate;
the carboxylic acid anionic surfactant comprises sodium stearate or sodium laurate;
the sulfated oil anionic surfactant comprises sulfated castor oil or fatty alcohol-polyoxyethylene ether sulfate.
Preferably, the swelling coefficient of the bentonite is more than or equal to 30mL/2 g.
The invention also provides a preparation method of the asphalt binder in the technical scheme, which comprises the following steps:
(1) mixing the anionic surfactant with part of water at 90-95 ℃ to obtain an emulsion;
(2) mixing the emulsion obtained in the step (1) with bentonite to obtain slurry emulsified soap liquid;
(3) mixing the slurry emulsified soap liquid obtained in the step (2) with modified asphalt and anthracene oil to obtain an adhesive primary product;
(4) and mixing the residual water with the primary adhesive to obtain the asphalt adhesive.
Preferably, the temperature of the modified asphalt in the step (3) is 130-150 ℃; the temperature of the anthracene oil is 80-90 ℃.
The invention also provides application of the asphalt binder in the technical scheme or the asphalt binder prepared by the preparation method in the technical scheme in preparation of layer-sticking oil or layer-penetrating oil.
The invention provides an asphalt binder, which comprises the following components in parts by mass: 100 parts of modified asphalt, 2-4 parts of anionic surfactant, 10-15 parts of anthracene oil, 7-15 parts of bentonite and 140-180 parts of water; the modified asphalt comprises matrix asphalt and a normal-temperature asphalt modifier; the normal-temperature asphalt modifier accounts for 8-12% of the mass of the modified asphalt. The modified asphalt is used as a main material, and provides a foundation for the action of an anionic surfactant, anthracene oil and bentonite under the high-temperature or low-temperature condition; the invention utilizes the anionic surfactant to promote the mixing uniformity of the bentonite, the modified asphalt and the anthracene oil, and is beneficial to obtaining the adhesive with stable adhesive property; the invention utilizes anthracene oil to improve the permeability of each component of the asphalt binder, so that the asphalt binder permeates into the old asphalt structure, and the bonding strength of the asphalt binder is further improved. The results of the examples show that the bonding strength of the asphalt binder provided by the invention is more than or equal to 2.5 MPa.
Drawings
FIG. 1 is a schematic flow diagram of a process for preparing a bituminous binder according to the present invention.
Detailed Description
The invention provides an asphalt binder, which comprises the following components in parts by mass: 100 parts of modified asphalt, 2-4 parts of anionic surfactant, 10-15 parts of anthracene oil, 7-15 parts of bentonite and 140-180 parts of water; the modified asphalt comprises matrix asphalt and a normal-temperature asphalt modifier; the normal-temperature asphalt modifier accounts for 8-12% of the mass of the modified asphalt.
In the present invention, the raw material components are commercially available products well known to those skilled in the art, unless otherwise specified.
The asphalt binder of the present invention comprises modified asphalt. In the invention, the modified asphalt comprises base asphalt and a normal temperature asphalt modifier, wherein the base asphalt is preferably SBS modified asphalt, and is further preferably SBS modified 70# petroleum asphalt or SBS modified 90# petroleum asphalt. In the invention, the mass content of the SBS modifier in the SBS modified asphalt is preferably 4-10%, and more preferably 4-8%. The source of the SBS modified asphalt is not particularly required by the invention, and the SBS modified asphalt can be a commercially available product or a self-made product which is well known to the skilled person. In the present invention, when the SBS modified asphalt is prepared by itself, the preparation method preferably includes: mixing the SBS modifier with the asphalt at 160-180 ℃, and stirring for 20-60 min at 200-320 r/min to obtain the SBS modified asphalt.
In the invention, the dosage of the SBS modifier is consistent with the corresponding mass content in the SBS modified asphalt in the technical scheme, and the dosage is not repeated. In the invention, the mixing temperature of the SBS modifier and the asphalt is preferably 160-180 ℃, and more preferably 165-175 ℃. In the invention, the mixing of the SBS modifier and the asphalt is preferably carried out under the condition of stirring, and the stirring speed is preferably 200-320 r/min, and more preferably 240-300 r/min; the stirring time is preferably 20-60 min, and more preferably 30-40 min. The source of the SBS modifier is not particularly required by the present invention and commercially available products well known to those skilled in the art may be used. The invention preferably modifies the asphalt under the conditions, and can obtain the SBS modified asphalt with good high-low temperature performance and temperature sensing performance, and good fatigue resistance, elasticity and toughness performance.
In the invention, the normal-temperature asphalt modifier in the modified asphalt preferably comprises rubber oil and a stabilizer, and the mass ratio of the rubber oil to the stabilizer is preferably 3-5: 1, and more preferably 4-4.5: 1. In the present invention, the rubber oil is preferably obtained by refining waste tires and plastics to reduce the cost.
In the present invention, the stabilizer preferably includes an organic stabilizer and/or an inorganic stabilizer. When the stabilizer is a mixture of an organic stabilizer and an inorganic stabilizer, the dosage ratio of the organic stabilizer to the inorganic stabilizer is not specially required. In the present invention, the organic stabilizer comprises a diaryl disulfide; the inorganic stabilizer comprises one or more of phosphoric acid, zinc oxide, montmorillonite and kaolin; when the inorganic stabilizer is a mixture of several components, the invention has no special requirement on the dosage ratio of the components in the mixture.
The stabilizer preferably reacts with active functional groups such as hydroxyl, carbonyl, ester and the like contained in the asphalt to form stable ionic bonds or covalent bonds, so that the chemical structure of the asphalt is changed, two-phase separation is effectively prevented, and the storage stability of the SBS modified asphalt is further improved.
In the invention, the mass content of the normal temperature asphalt modifier in the modified asphalt is 8-12%, and preferably 9-11%. The invention limits the content of the normal temperature asphalt modifier in the range, and can obtain the asphalt adhesive with better low temperature resistance and high temperature resistance. In the present invention, the low temperature resistance means excellent flexibility, no crack, no fracture phenomenon under low temperature conditions; the asphalt binder can resist a low temperature of-20 to-25 ℃, and is more preferably-25 ℃. In the invention, the high temperature resistance refers to the performance of no phenomena of flowing, sliding and dripping of asphalt under a high temperature condition, and the modified asphalt binder can resist the high temperature of 150-160 ℃, and is more preferably 155-160 ℃.
The preparation method of the modified asphalt of the invention preferably comprises the following steps:
mixing SBS modified asphalt with a normal temperature asphalt modifier at 120-150 ℃, and performing swelling development to obtain the modified asphalt.
In the invention, the composition of the normal-temperature asphalt modifier is consistent with that of the normal-temperature asphalt modifier in the technical scheme, and the composition is not repeated here. In the invention, the dosage of the normal temperature asphalt modifier is consistent with the mass content of the normal temperature asphalt modifier in the modified asphalt in the technical scheme, and the dosage is not repeated here. In the invention, the mixing temperature of the SBS modified asphalt and the normal temperature asphalt modifier is preferably 120-150 ℃, and more preferably 125-145 ℃. The invention has no special requirements on the mixing mode of the SBS modified asphalt and the normal temperature asphalt modifier, and the mixing mode which is well known by the technicians in the field can be adopted.
After the SBS modified asphalt is mixed with the normal-temperature asphalt modifier, the invention carries out swelling development on the mixed mixture to obtain the modified asphalt. In the swelling development process, the mixed residual temperature is utilized, and the mixture is not required to be additionally heated. In the present invention, the swelling development process is preferably performed under stirring conditions so that the normal temperature modifier is in full contact with the SBS modified asphalt. In the invention, the swelling development comprises a swelling stage and a development stage, and the stirring speed of the swelling stage is preferably 200-400 r/min, and more preferably 240-300 r/min; the time of the swelling stage is preferably 25-60 min, and more preferably 30-45 min. In the invention, the temperature in the development stage is preferably 125-145 ℃, more preferably 130-140 ℃, and more preferably 132-138 ℃; the stirring speed in the development stage is preferably 100-150 r/min, and more preferably 110-120 r/min; the time of the development stage is preferably 10-20 min, and more preferably 12-18 min. In the invention, after the development, the softening point of the material obtained after the development is preferably detected to judge whether the modified asphalt is obtained; if the softening point of the developed material is reduced to 80-90% of the original asphalt, the material is the modified asphalt, and at the moment, the development is stopped; if the softening point of the developed material is higher than 90% of the original asphalt, adjusting the environment of the material to be consistent with the environment of the swelling stage, and repeating the processes of the swelling stage and the development stage until the modified asphalt is obtained.
According to the invention, the SBS modified asphalt and the normal temperature asphalt modifier are preferably subjected to swelling development under the conditions, so that the SBS modified asphalt and the normal temperature modifier are compatible, and the storage stability of the modified asphalt is improved.
The asphalt binder comprises 2-4 parts by mass of anionic surfactant, and more preferably 2.5-3.5 parts by mass of the modified asphalt. In the invention, the anionic surfactant can improve the mixing uniformity of bentonite and modified asphalt, thereby obtaining the asphalt adhesive with better stability.
In the invention, the anionic surfactant preferably comprises one or more of sulfonic acid anionic surfactant, carboxylic acid anionic surfactant and sulfuric acid oil anionic surfactant; the sulfonic acid anionic surfactant preferably comprises sodium dodecyl benzene sulfonate or sodium dodecyl phenyl ether disulfonate; the carboxylic acid anionic surfactant preferably comprises sodium stearate or sodium laurate; the sulfated oil anionic surfactant preferably comprises sulfated castor oil or fatty alcohol-polyoxyethylene ether sulfate; the fatty alcohol-polyoxyethylene ether sulfate is preferably fatty alcohol-polyoxyethylene ether ammonium sulfate.
In the present invention, when the anionic surfactant includes a mixture of a plurality of components, the anionic surfactant may specifically be a mixture of sodium dodecylbenzenesulfonate and sodium stearate, a mixture of sodium dodecylbenzenesulfonate and fatty alcohol-polyoxyethylene ether ammonium sulfate, a mixture of sulfated castor oil and sodium dodecylphenyl ether disulfonate, and a mixture of sodium dodecylbenzenesulfonate, sodium laurate and fatty alcohol-polyoxyethylene ether ammonium sulfate. In the invention, when the anionic surfactant is a mixture of several components, the dosage ratio of the components in the mixture is not particularly required.
The asphalt binder comprises 10-15 parts of anthracene oil, preferably 11-14 parts of anthracene oil, and more preferably 12-13 parts of anthracene oil based on 100 parts by mass of the modified asphalt. In the invention, the anthracene oil can promote the permeability of each component of the asphalt binder, so that the asphalt binder can permeate into the asphalt structure, thereby improving the bonding strength of the asphalt binder.
The asphalt binder comprises 7-15 parts by mass of bentonite, and more preferably 8-12 parts by mass of 100 parts by mass of the modified asphalt. In the invention, the bentonite swells when meeting water, so that the viscosity performance of the asphalt adhesive is improved. In the present invention, the swelling coefficient of the bentonite is preferably not less than 30mL/2g, and more preferably 35 to 40mL/2 g. In the present invention, the bentonite is preferably sodium bentonite; the colloid value of the sodium bentonite is preferably 37-42 mL/15g of soil, and more preferably 40-41 mL/15g of soil; the granularity of the sodium bentonite is preferably 300-800 meshes, and is further preferably 450-550 meshes; the refractoriness of the sodium bentonite is 1508-1545 ℃ preferably, and 1515-1540 ℃ further preferably.
In the present invention, the chemical composition of the sodium bentonite preferably includes, in parts by mass: SiO 2262 to 70 parts of Al2O317 to 23 parts of Fe2O32.5-5.3 parts of CaO + MgO, 1-2 parts of CaO + MgO and K2O+Na2And 3 parts of O2. The aluminum oxide is more preferably 18 to 21 parts by mass, the iron oxide is more preferably 3 to 5 parts by mass, the total amount of calcium oxide and magnesium oxide is preferably 1.2 to 1.8 parts by mass, and the total amount of potassium oxide and sodium oxide is preferably 2.2 to 2.8 parts by mass.
The asphalt binder of the present invention comprises 140 to 180 parts by weight of water, more preferably 150 to 175 parts by weight, based on 100 parts by weight of the modified asphalt. The present invention does not require a particular source of such water and may be employed as is well known to those skilled in the art.
In the invention, the viscosity of the asphalt binder at 25 ℃ is preferably 1500-2100 CP, and more preferably 1600-1800 CP. In the present invention, the storage stability of the asphalt binder is preferably 1% or less; the stability was tested according to the T0655-1993 emulsified asphalt storage stability test. In the invention, the penetration depth of the asphalt binder is preferably not less than 5mm, and more preferably 5-6 mm; the penetration depth refers to the penetration depth obtained by testing after asphalt binder is sprayed on the surface of the pavement base layer according to the method for testing the penetration depth of the penetrating layer oil of the T0984-2008 semi-rigid base layer. In the invention, the bonding strength of the asphalt binder is preferably not less than 2.5MPa, and more preferably 2.6-2.7 MPa; the bonding strength refers to the pull strength. In the invention, the ductility of the asphalt binder is preferably not less than 40cm, and more preferably 40-50 cm; the ductility refers to the result of ductility test conducted at 15 ℃ and 5 cm/min. In the invention, the solubility refers to the percentage of the dissolving amount of the asphalt binder in the trichloroethylene in the total mass of the asphalt binder, and the solubility of the asphalt binder in the trichloroethylene is preferably more than or equal to 97.5%, and more preferably 98.0-98.5%.
In the invention, the bonding strength of the asphalt binder and the mineral aggregate is tested according to the cationic emulsified asphalt test method of JTG E20-2011 road engineering asphalt and asphalt mixture test procedure T0654-2011 emulsified asphalt and coarse aggregate adhesion test, and the stripping area of the asphalt binder on the surface of the mineral aggregate after the test accounts for less than or equal to 20 percent of the total amount, and is further preferably 0.01-5 percent; the bonding strength of the asphalt binder and the mineral aggregate reaches 4-5 grades. In the present invention, the mineral aggregate preferably comprises an alkaline stone or an acidic stone, the acidity and alkalinity of which depends on SiO in the chemical composition2Is divided by the content of (A); SiO in the stone2The material with the mass content of more than or equal to 65 percent is acidic stone material, and SiO in the stone material2The alkaline stone is used with the mass content less than or equal to 52 percent.
The invention also provides a preparation method of the asphalt binder in the technical scheme, which comprises the following steps:
(1) mixing the anionic surfactant with part of water at 90-95 ℃ to obtain an emulsion;
(2) mixing the emulsion obtained in the step (1) with bentonite to obtain slurry emulsified soap liquid;
(3) mixing the slurry emulsified soap liquid obtained in the step (2) with modified asphalt and anthracene oil to obtain an adhesive primary product;
(4) and mixing the residual water with the primary adhesive to obtain the asphalt adhesive.
The invention mixes the anionic surfactant with part of water to obtain the emulsion. In the present invention, the mixing is preferably performed at 90 to 95 ℃, and more preferably at 92 to 94 ℃. In the present invention, the mixing of the anionic surfactant with water is preferably carried out at the above temperature range, and the anionic surfactant can be sufficiently dissolved to obtain a uniformly dispersed emulsion. The manner in which the present invention provides the mixing temperature is not particularly limited and may be any that is well known to those skilled in the art.
In the present invention, the water for mixing with the anionic surfactant is a part of the water for the raw material for preparing the asphalt binder. In the invention, the mass ratio of the anionic surfactant to water in the preparation of the emulsion is preferably 1: 30-40, and more preferably 1: 32-36.
In the invention, the mixing is preferably carried out under the condition of stirring, and the stirring speed is preferably 100-150 r/min, and more preferably 120-140 r/min; the stirring time is preferably 1-5 min, and more preferably 2-3 min.
After the emulsion is obtained, the bentonite is mixed with the emulsion to obtain the slurry emulsified soap liquid. The invention has no special requirement on the mixing mode of the bentonite and the emulsion, and the bentonite and the emulsion can be mixed by adopting the method which is well known by the technical personnel in the field. After the bentonite is mixed with the emulsion, the invention preferably stirs the mixture so as to uniformly mix the bentonite and the emulsion. In the invention, the stirring speed is preferably 200-350 r/min, and more preferably 260-300 r/min; the stirring time is preferably 3-5 min, and more preferably 3.5-4.5 min. In the present invention, the stirring process does not require additional heating of the mixed materials.
After the slurry emulsified soap liquid is obtained, modified asphalt, anthracene oil and the slurry emulsified soap liquid are mixed to obtain an adhesive primary product. In the invention, the temperature of the modified asphalt is preferably 130-150 ℃, and more preferably 135-145 ℃; the temperature of the anthracene oil is preferably 80-90 ℃, and is further preferably 82-88 ℃. In the present invention, the temperature of the modified asphalt and the anthracene oil is preferably limited to the above range, so that the viscosity can be reduced and the mixing of the modified asphalt, the anthracene oil and the slurry emulsified soap solution can be promoted. In the invention, the mixing is preferably carried out under the condition of stirring, and the stirring speed is preferably 280-350 r/min, and more preferably 290-320 r/min; the stirring time is preferably 20-30 min, and more preferably 24-28 min. In the present invention, the mixing is preferably effected by means of a static mixer.
After the adhesive primary product is obtained, the residual water is mixed with the adhesive primary product to obtain the asphalt adhesive. In the present invention, the temperature of the remaining water is preferably room temperature. The present invention preferably mixes the remaining water with the binder precursor for adjusting the viscosity of the binder. In the present invention, the total amount of the remaining water and the above-mentioned water for mixing the anionic surfactant is the same as the amount of water used for raw materials for preparing the asphalt binder.
The invention also provides application of the asphalt binder in the technical scheme or the asphalt binder prepared by the preparation method in the technical scheme in preparation of layer-sticking oil or layer-penetrating oil.
In the present invention, the method for preparing the slime layer oil preferably comprises: mixing the asphalt binder with water to obtain a prime coat oil; the mass ratio of the asphalt binder to water is preferably 1: 6-10, and more preferably 1: 7-9.
In the present invention, the method for preparing the transmural oil preferably includes: mixing the asphalt binder with water to obtain viscous layer oil; the mass ratio of the asphalt binder to water is preferably 1: 0.8-2, and more preferably 1: 1-1.8.
For further illustration of the present invention, the following detailed description of the asphalt binder and its preparation method and application are provided in conjunction with the accompanying drawings and examples, which should not be construed as limiting the scope of the present invention.
Example 1
The asphalt binder was prepared according to the schematic flow chart of the asphalt binder preparation method shown in fig. 1:
mixing 5 parts of SBS modifier with 95 parts of No. 70 petroleum asphalt at 170 ℃ to obtain SBS modified asphalt; mixing 90 parts of SBS modified asphalt with 10 parts of normal temperature asphalt modifier at 135 ℃ to obtain modified asphalt;
mixing 2.5 parts of sodium dodecyl benzene sulfonate with 140 parts of 90 ℃ water, and stirring for 3min under the condition of 100r/min to obtain an emulsion;
adding 7 parts of sodium bentonite into the emulsion, and stirring for 5min under the condition of 280r/min to obtain slurry emulsified soap liquid;
adding 100 parts of 130 ℃ modified asphalt and 15 parts of 80 ℃ anthracene oil into the slurry emulsified soap solution through a static mixer, stirring while adding, wherein the stirring speed is 280r/min, and the stirring time is 20min, so as to obtain an adhesive primary product;
10 parts of water were added to the binder base to obtain a bituminous binder.
The obtained asphalt binder was mixed with water at a mass ratio of 1:1.2 to obtain sample 1, and the bonding strength and permeability were measured.
Example 2
Mixing 7 parts of SBS modifier with 93 parts of No. 90 petroleum asphalt at 165 ℃ to obtain SBS modified asphalt; mixing 91 parts of SBS modified asphalt with 9 parts of normal temperature asphalt modifier at 145 ℃ to obtain modified asphalt;
mixing 3.5 parts of sodium stearate and 0.5 part of sodium laurate with 150 parts of water with the temperature of 92 ℃, and stirring for 3min at the condition of 120r/min to obtain an emulsion;
adding 11 parts of sodium bentonite into the emulsion, and stirring for 4min under the condition of 300r/min to obtain a slurry emulsified soap solution;
adding 100 parts of modified asphalt (140 ℃) and 13 parts of anthracene oil (90 ℃) into the slurry emulsified soap liquid through a static mixer, stirring while adding, wherein the stirring speed is 320r/min, and the stirring time is 23min, so as to obtain an adhesive primary product;
adding 15 parts of water into the primary adhesive product to obtain an asphalt adhesive; the obtained asphalt binder was mixed with water at a mass ratio of 1:0.8 to obtain sample 2, which was tested for its adhesive strength and permeability.
Example 3
Mixing 8 parts of SBS modifier with 92 parts of No. 70 petroleum asphalt at 175 ℃ to obtain SBS modified asphalt; mixing 89 parts of SBS modified asphalt with 11 parts of normal temperature asphalt modifier at the temperature of 130 ℃ to obtain modified asphalt;
mixing 3 parts of sodium didodecyl phenyl ether disulfonate with 160 parts of 90 ℃ water, and stirring for 2min at the condition of 150r/min to obtain an emulsion;
adding 10 parts of sodium bentonite into the emulsion, and stirring for 4min under the condition of 200r/min to obtain a slurry emulsified soap solution;
adding 100 parts of modified asphalt (150 ℃) and 10 parts of anthracene oil (80 ℃) into the slurry emulsified soap liquid through a static mixer, stirring while adding, wherein the stirring speed is 290r/min, and the stirring time is 20min, so as to obtain an adhesive primary product;
adding 20 parts of water into the primary adhesive product to obtain an asphalt adhesive; the obtained asphalt binder was mixed with water at a mass ratio of 1:1.8 to obtain sample 3, which was tested for its adhesive strength and permeability.
The viscosity of the asphalt binder obtained in examples 1 to 3 was measured at 25 ℃ using a viscosity tester;
testing the change condition of the viscosity of the asphalt binder obtained in the example 1-3 according to the T0655-1933 standard, and testing the storage stability of the asphalt binder;
testing the permeability of the asphalt binder obtained in example 1-3 according to the T0984-2008 standard;
testing the ductility of the asphalt binder obtained in the example 1-3 at the temperature of 15 ℃ at 5 cm/min;
the asphalt binder of the examples 1 to 3 was dissolved with trichloroethylene to test the purity of the asphalt binder;
preparing a formed asphalt concrete standard test plate according to a JTGE20 rut test, and testing the pull strength of the adhesive obtained in the embodiment 1-3 by using a bonding tester as the bonding strength;
testing the adhesion performance of the asphalt binder obtained in the example 1-3 and mineral aggregate according to the JTG E20/T0654 condition;
testing the low-temperature flexibility of the asphalt binder obtained in the embodiment 1-3 according to the test conditions of JC/T975-2005 channel bridge waterproof paint;
the heat resistance of the asphalt binder obtained in examples 1-3 was tested under the test conditions of JC/T975-2005 channel bridge waterproof paint.
TABLE 1 examples 1-3 asphalt Binder Performance test results
As can be seen from the data in Table 1, the asphalt binder provided by the present invention has excellent bonding strength, which can reach 2.5MPa or more, because the anthracene oil can promote the penetration of the components of the binder, so that the binder can penetrate into the structure of the old asphalt or the pavement matrix asphalt, thereby enhancing the bonding performance of the asphalt binder.
The embodiments show that the asphalt binder provided by the invention has higher bonding performance and permeability, can permeate into asphalt, and improves the strength of new and old asphalt bonding layers.
In addition, the asphalt binder provided by the invention has higher purity, and the influence of impurities on the bonding performance is avoided; the asphalt binder has good stability and small variation range of bonding strength, can further prolong the service cycle of the asphalt binder and avoid resource waste caused by the fact that the binder cannot be used due to the reduction of the storage stability in a short time; the asphalt binder has no crack and no continuous cracking under the low-temperature condition, has excellent flexibility, and has no phenomena of flowing, sliding and dripping under the high-temperature condition, which shows that the asphalt binder provided by the invention has excellent low-temperature crack resistance and expands the application range of the asphalt binder; the asphalt binder provided by the invention can be used as viscous layer oil or permeable layer oil by adjusting the water quantity; finally, the asphalt binder provided by the invention has better water damage resistance and fatigue cracking resistance and has better market value.
Although the present invention has been described in detail with reference to the above embodiments, it is only a part of the embodiments of the present invention, not all of the embodiments, and other embodiments can be obtained without inventive step according to the embodiments, and the embodiments are within the scope of the present invention.
Claims (8)
1. The asphalt binder comprises the following components in parts by mass: 100 parts of modified asphalt, 2-4 parts of anionic surfactant, 10-15 parts of anthracene oil, 7-15 parts of bentonite and 140-180 parts of water;
the modified asphalt comprises matrix asphalt and a normal-temperature asphalt modifier; the normal-temperature asphalt modifier accounts for 8-12% of the mass of the modified asphalt; the base asphalt comprises SBS modified asphalt;
the preparation method of the modified asphalt comprises the following steps: mixing SBS modified asphalt with a normal temperature asphalt modifier at 120-150 ℃, and performing swelling development to obtain the modified asphalt.
2. The asphalt binder as claimed in claim 1, wherein the normal temperature asphalt modifier comprises rubber oil and a stabilizer, and the mass ratio of the rubber oil to the stabilizer is 3-5: 1.
3. The asphalt binder of claim 2 wherein the stabilizer comprises an organic stabilizer and/or an inorganic stabilizer.
4. An asphalt binder as defined in claim 1 wherein the anionic surfactant comprises one or more of sodium dodecylbenzene sulphonate, sodium dodecylphenyl ether disulfonate, sodium stearate, sodium laurate, sulfated castor oil and fatty alcohol polyoxyethylene ether sulfate.
5. The asphalt binder of claim 1 wherein the bentonite has a coefficient of expansion of greater than or equal to 30mL/2 g.
6. A process for preparing an asphalt binder as claimed in any one of claims 1 to 5, comprising the steps of:
(1) mixing the anionic surfactant with part of water at 90-95 ℃ to obtain an emulsion;
(2) mixing the emulsion obtained in the step (1) with bentonite to obtain slurry emulsified soap liquid;
(3) mixing the slurry emulsified soap liquid obtained in the step (2) with modified asphalt and anthracene oil to obtain an adhesive primary product;
(4) and mixing the residual water with the primary adhesive to obtain the asphalt adhesive.
7. The preparation method according to claim 6, wherein the temperature of the modified asphalt in the step (3) is 130 to 150 ℃; the temperature of the anthracene oil is 80-90 ℃.
8. Use of the bituminous binder according to any one of claims 1 to 5 or of the bituminous binder obtained by the method according to any one of claims 6 to 7 for the preparation of a skim coat oil or a skim coat oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468966.6A CN108587563B (en) | 2018-05-16 | 2018-05-16 | Asphalt adhesive and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468966.6A CN108587563B (en) | 2018-05-16 | 2018-05-16 | Asphalt adhesive and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108587563A CN108587563A (en) | 2018-09-28 |
| CN108587563B true CN108587563B (en) | 2020-12-25 |
Family
ID=63631385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810468966.6A Active CN108587563B (en) | 2018-05-16 | 2018-05-16 | Asphalt adhesive and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108587563B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110922769B (en) * | 2018-09-20 | 2022-09-09 | 中国石油化工股份有限公司 | Direct-vat-set high-viscosity asphalt modifier and preparation method thereof |
| CN114075807B (en) * | 2020-08-21 | 2023-04-28 | 何肖斌 | Cement pavement staggered platform repairing method |
| CN115785681A (en) * | 2022-11-09 | 2023-03-14 | 江苏天诺道路材料有限公司 | Emulsified asphalt for permeable layer and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB317496A (en) * | 1928-03-16 | 1929-08-16 | Ig Farbenindustrie Ag | An improved cold asphalt and application thereof |
| CN102653631A (en) * | 2012-04-16 | 2012-09-05 | 交通运输部公路科学研究所 | Mixed asphalt for pavements and preparation method for mixed asphalt |
| CN103468009B (en) * | 2013-09-26 | 2016-05-25 | 山西盛驰科技有限公司 | A kind of modified pavement asphalt and production technology |
| CN103642255B (en) * | 2013-11-25 | 2016-01-20 | 中国日用化学工业研究院 | A kind of nano modification road petroleum pitch and preparation technology thereof |
-
2018
- 2018-05-16 CN CN201810468966.6A patent/CN108587563B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108587563A (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103242002B (en) | Cold-mix semi-flexible composite pavement material and preparation method thereof | |
| CN108587563B (en) | Asphalt adhesive and preparation method and application thereof | |
| CN110713362B (en) | Normal-temperature asphalt mixture and preparation method thereof | |
| CN101255304B (en) | Tung oil modified JS waterproofing paint and preparation thereof | |
| CN103554933B (en) | For the high-adhesion priming oil and preparation method thereof of cement stabilized macadam base | |
| CN103145396B (en) | Multifunctional quick repair material for cement concrete pavements and preparation method thereof | |
| CN105482477A (en) | Super-adhesive composite modified emulsified asphalt and preparation method thereof | |
| CN102219446A (en) | Modified emulsified bitumen cement waterproof coating and preparation method thereof | |
| CN100457845C (en) | Composite waterproof bridge paint and its prepn process | |
| CN104530731A (en) | High-viscosity spraying type SBS modified emulsified asphalt and preparing method thereof | |
| CN108084881B (en) | Non-cured rubber asphalt waterproof coating for wet ground and preparation method thereof | |
| CN104371339B (en) | A kind of Colophonium fat glue of road improvement Colophonium plasticity and preparation method thereof | |
| CN105272125A (en) | Geopolymer-based rapid repairing material and preparation method thereof | |
| CN104449555B (en) | Based on waterborne epoxy modified second-order reaction water-proof bond material and preparation method | |
| CN102757654B (en) | Prime coat oil and method for preparing same | |
| CN113235351B (en) | Airport pavement structure with asphalt layer paved on old cement airport runway and paving method thereof | |
| KR100932717B1 (en) | The emulsified mastic waterproofing material using at room temperature and method for producing thereof | |
| Ren et al. | Laboratory investigation on performance of waste-oil cutback asphalt as prime coat on cement stabilized macadam base | |
| CN105802260A (en) | Epoxy resin curing material system for road epoxy asphalt and preparation method of epoxy resin curing material system | |
| CN108559284A (en) | A kind of thin overlay sticking layer oil and its preparation method and application | |
| CN110885634B (en) | Asphalt-based material and preparation method thereof | |
| CN109232974A (en) | A kind of bituminous pavement reclaimed materials normal-temperature regeneration agent | |
| CN101723619A (en) | Pavement patching material and preparation method thereof | |
| CN103130470A (en) | Warm mix drainage asphalt mixture and preparation method thereof | |
| KR101212288B1 (en) | Primer composition and construction method for waterproof structure using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |