CN103724844A - Modifier for asphalt pavement - Google Patents
Modifier for asphalt pavement Download PDFInfo
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- CN103724844A CN103724844A CN201310695519.1A CN201310695519A CN103724844A CN 103724844 A CN103724844 A CN 103724844A CN 201310695519 A CN201310695519 A CN 201310695519A CN 103724844 A CN103724844 A CN 103724844A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/36—Bituminous materials, e.g. tar, pitch
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2611—Polyalkenes
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a modifier for an asphalt pavement. The modifier comprises the raw materials in parts by weight: asphalt, butyl rubber, mineral fibers, olefine resin, a radical scavenger and organic bentonite, wherein the asphalt material and a macromolecular polymer generate mutually invasive dispersion; gaps between macromolecules of the polymer are filled with asphalt molecules, and some chain links of the polymer molecules are dispersed into the asphalt molecules, so that a crosslinked net structure is formed; the crosslinked net structure is high in lipophilicity, so that oil molecules can be restrained in the crosslinked net structure and is synergetically enhanced under the action of the mineral fibers, the radical scavenger and the organic bentonite; therefore, free asphalt is reduced, an asphalt film is in a relatively stable state, and the viscosity of mucilage is enhanced; the asphalt softening point and the needle penetration degree are increased, the high-temperature dynamic stability and the rutting resistance are improved, and production of cracks under a low-temperature condition is relieved; meanwhile, by virtue of the enhancement of the viscosity of the asphalt mucilage, the bond performance is improved, and the water stability is improved. Therefore, the modifier for the asphalt pavement has the characteristics of high-temperature stability, high aging resistance, high low-temperature cracking resistance, good elastic effect and long service life, cannot move out in summer and be embrittled in winter and is suitable for cold temperature difference regions.
Description
Technical field
The present invention relates to traffic and overlay material technology field, particularly a kind of properties-correcting agent for bituminous pavement.
Background technology
Bituminous pavement is because forms such as the destruction that causes of high temperature has rut, gathers around bag, pushes, bellding, washboards.Rut is that bituminous pavement is subject to loading action under hot conditions, and the irreclaimable tension set of vertical densification or the generation of compound sidesway occurs compound.The harm of rut is embodied in two aspects, and the one, affect road-ability, the 2nd, traffic safety is constituted a threat to.The factor that affects stability at high temperature of asphalt mixture is many-sided, comprises testing method, material factor, environmental factors etc., control the generation of rut well, needs many factors to consider, and catches principal contradiction, makes rut controlled.
The type of rut can be divided into following a few class substantially:
1. due to sub-surface or subgrade strength inadequate, under driving effect, roadbed or basic unit deform and make road surface occur rut, are commonly referred to as structural rut.
2. due to the poor high temperature stability of asphalt, slip resistance is not enough, causes asphalt under vehicle effect, to occur side direction passing, and this class distortion is commonly referred to as de-stabilise rut.
3. some freezing smooth section in the winter time, vehicle uses antiskid chain or adopts band nail wheel tire, causes the heavy wear on road surface, and this class rut is commonly referred to as abradability rut.
High temperature also has impact to bituminous pavement in addition: bituminous pavement on period, stand different temperature and humidity environment, and bituminous concrete is a kind of viscoelastic material, its physical and mechanical property and temperature are closely related, also relevant with the loading action time.More than summer temperature 25 degree, more than at this moment bituminous pavement surface temperature reaches 40 degree, met or exceeded the softening point temperature of road bitumen, under carload effect, permanent deformation easily produces, and along with temperature raising and load increase the weight of, distortion will strengthen.Lower than 25 o'clock, generally can not produce serious distortion.According to the conclusion of experimental study, hot environment typically refers to the temperature condition of 25～35 degree.In military service process, the high temperature of environment makes the deliquescing of asphalt medium pitch, and under the rolling of heavy vehicle, meeting makes to gather materials and be subjected to displacement in compound, and the accumulation of displacement can cause surface deformation, directly translates into rut disease; If each surface layer bonding measure is bad, the displacement of at high temperature gathering materials also can be carried out along direction of traffic, directly translates into passing disease.When there's a sudden fall in temperature in the winter time, soil matrix and road surface base are owing to being subject to temperature variation, freeze the expansion of generation winter, cause roadbed and basic unit produce crack and reflex to oil mat, the stress relaxation of asphalt is unable to catch up with the growth of thermal stress, simultaneously stiffness sharply increases, and surpasses the ultimate strength of compound or limit tensile strain and produces cracking.Along with the lifting repeatedly of temperature, thermal stress diminishes the limit tensile strain of compound, and the aging stiffness of pitch that makes of adding pitch increases, and stress relaxation ability reduces, and cracking is more and more serious along with the increase in road age.
Therefore, need to carry out modification to pitch, and then improve the anti-rut of high temperature, crack resistance at low-temperature and rutting resistance and the water stability of asphalt, effectively reduce the disease of bituminous pavement.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of properties-correcting agent for bituminous pavement, improve the anti-rut of high temperature, crack resistance at low-temperature and rutting resistance and the water stability of asphalt, effectively reduce the disease of bituminous pavement.
A kind of properties-correcting agent for bituminous pavement of the present invention, properties-correcting agent raw material comprises following component by weight: pitch 5-15 part, isoprene-isobutylene rubber 35-45 part, mineral fibre 4-10 part, olefine kind resin 15-20 part, radical scavenger 1-10 part, organobentonite 1-5 part;
Further, properties-correcting agent raw material comprises following component by weight: pitch 10-15 part, isoprene-isobutylene rubber 38-45 part, mineral fibre 6-10 part, olefine kind resin 15-20 part, radical scavenger 3-8 part, organobentonite 1-5 part;
Further, properties-correcting agent raw material comprises 12 parts of following component pitches, 40 parts of isoprene-isobutylene rubbers, 8 parts of mineral fibre, 17 parts of olefine kind resins, 5 parts of radical scavengers, 3 parts of organobentonites by weight;
Further, described olefine kind resin is the long carbochain hydrocarbon resin of C6-C18;
Further, described olefine kind resin is t-butyl styrene and the multipolymer of Vinylstyrene in polyisobutene base material;
Further, described radical scavenger is one or more mixtures in 2,2-phenylbenzene-1-trinitrophenyl-hydrazine, para benzoquinone, tetramethyl-benzoquinone, 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone;
Further, described mineral fibre is one or more mixtures in basalt fibre, andesite fiber, diabase fiber;
Further, described mineral fibre is the surperficial chopped strand through expansion process, and described staple length is 10-20mm, and diameter is 10-15 μ m;
Further, described pitch is one or more mixtures in rock asphalt, coal tar pitch, petroleum pitch.
Properties-correcting agent for bituminous pavement of the present invention can be by passing through twin screw extruder extruding pelletization after each component is mixed, prepared by the mode that is 120-200 ℃ of bottom brace granulation at extrusion temperature, also can be applicable to the character of each component materials of the present invention and can realize the object of the invention preparation method being prepared by other.
Beneficial effect of the present invention:
Properties-correcting agent for bituminous pavement of the present invention, between bituminous material and high molecular polymer, there is the diffusion of mutually invading, asphaltene molecule is filled in the gap of polymer macromolecule, some chain link of polymer molecule diffuses in asphaltene molecule simultaneously, thereby form crosslinked reticulated structure, there is good oleophylic performance, oil molecule can be bound by crosslinked reticulated structure, and by mineral fibre and radical scavenger and the collaborative enhancing of organobentonite, and then reduce free pitch, make asphalt membrane in more stable state, strengthen rubber cement viscosity, can improve pitch softening point and penetration degree, strengthen the generation that high temperature dynamic stability improves rutting resistance and reduces crack under cold condition, the adhesivity of simultaneously passing through to strengthen asphalt mastic is to improve bond stress and then to improve water stability.Therefore, the properties-correcting agent for bituminous pavement of the present invention has high-temperature stable, and resistance to deterioration is good, and anti-low-temperature cracking is good, and elastic effect is good, and summer is outer moving not, and do not become fragile winter, the temperature difference that seasons oneself to cold area, the characteristic of long service life.
Embodiment
A kind of properties-correcting agent for bituminous pavement of this enforcement, properties-correcting agent raw material comprises following component by weight: pitch 5-15 part, isoprene-isobutylene rubber 35-45 part, mineral fibre 4-10 part, olefine kind resin 15-20 part, radical scavenger 1-10 part, organobentonite 1-5 part.
Be preferably pitch 10-15 part, isoprene-isobutylene rubber 38-45 part, mineral fibre 6-10 part, olefine kind resin 15-20 part, radical scavenger 3-8 part, organobentonite 1-5 part.
The best is, 12 parts of pitches, 40 parts of isoprene-isobutylene rubbers, 8 parts of mineral fibre, 17 parts of olefine kind resins, 5 parts of radical scavengers, 3 parts of organobentonites.
In the present embodiment, described olefine kind resin is the long carbochain hydrocarbon resin of C6-C18.
In the present embodiment, described olefine kind resin is t-butyl styrene and the multipolymer of Vinylstyrene in polyisobutene base material.
In the present embodiment, described radical scavenger is one or more mixtures in 2,2-phenylbenzene-1-trinitrophenyl-hydrazine, para benzoquinone, tetramethyl-benzoquinone, 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone.
In the present embodiment, described mineral fibre is one or more mixtures in basalt fibre, andesite fiber, diabase fiber.
In the present embodiment, described mineral fibre is the surperficial chopped strand through expansion process, and described staple length is 10-20mm, and diameter is 10-15 μ m;
In the present embodiment, described pitch is one or more mixtures in rock asphalt, coal tar pitch, petroleum pitch.
The properties-correcting agent for bituminous pavement of the present embodiment can be by passing through twin screw extruder extruding pelletization after each component is mixed, prepared by the mode that is 120-200 ℃ of bottom brace granulation at extrusion temperature, also can be applicable to the character of each component materials of the present invention and can realize the object of the invention preparation method being prepared by other.
Below by specific embodiment, the properties-correcting agent for bituminous pavement of the present invention is further elaborated.
Embodiment mono-
The properties-correcting agent for bituminous pavement of the present embodiment, properties-correcting agent raw material comprises 12 parts of following component pitches, 40 parts of isoprene-isobutylene rubbers, 8 parts of mineral fibre, 17 parts of olefine kind resins, 5 parts of radical scavengers, 3 parts of organobentonites by weight.
In the present embodiment, described olefine kind resin is t-butyl styrene and the multipolymer of Vinylstyrene in polyisobutene base material.
In the present embodiment, described radical scavenger is 2, 2-phenylbenzene-1-trinitrophenyl-hydrazine, in the present embodiment, by described 2, 2-phenylbenzene-1-trinitrophenyl-hydrazine replaces with para benzoquinone according to equivalent weight part, tetramethyl-benzoquinone, a kind of in 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone, or replace with 2 according to equivalent weight part, 2-phenylbenzene-1-trinitrophenyl-hydrazine and para benzoquinone, tetramethyl-benzoquinone, the mixture of 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre is basalt fibre, in the present embodiment, described basalt fibre is replaced with to a kind of in andesite fiber, diabase fiber according to equivalent weight part, or according to equivalent weight part, replace with the mixture of basalt fibre and andesite fiber, diabase fiber, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre be surface through the chopped strand of expansion process, after 1450-1500 high-temperature fusion, to become continuous fibre and be cut into length be 10-20mm to Defect, diameter is the chopped strand of 10-15 μ m.
In the present embodiment, described pitch is rock asphalt, in the present embodiment, rock asphalt is replaced with to a kind of in coal tar pitch, petroleum pitch according to equivalent weight part, or according to equivalent weight part, replace with the mixture of rock asphalt and coal tar pitch, petroleum pitch, all qualified properties-correcting agent.
After each component is mixed, by twin screw extruder extruding pelletization, after extrusion temperature is 120-200 ℃ of bottom brace granulation, add in asphalt, compound paves after mixing, and after paving, can roll immediately following paver.
Embodiment bis-
The properties-correcting agent for bituminous pavement of the present embodiment, properties-correcting agent raw material comprises following component by weight: 5 parts of pitches, 35 parts of isoprene-isobutylene rubbers, 4 parts of mineral fibre, 15 parts of olefine kind resins, 1 part of radical scavenger, 1 part of organobentonite.
In the present embodiment, described olefine kind resin is t-butyl styrene and the multipolymer of Vinylstyrene in polyisobutene base material.
In the present embodiment, described radical scavenger is para benzoquinone, in the present embodiment, described para benzoquinone is replaced with to 2 according to equivalent weight part, a kind of in 2-phenylbenzene-1-trinitrophenyl-hydrazine, tetramethyl-benzoquinone, 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone, or replace with para benzoquinone and 2 according to equivalent weight part, the mixture of 2-phenylbenzene-1-trinitrophenyl-hydrazine, tetramethyl-benzoquinone, 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre is andesite fiber, in the present embodiment, described andesite fiber is replaced with to a kind of in basalt fibre, diabase fiber according to equivalent weight part, or according to equivalent weight part, replace with the mixture of basalt fibre and andesite fiber, diabase fiber, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre be surface through the chopped strand of expansion process, after 1450-1500 high-temperature fusion, to become continuous fibre and be cut into length be 10-20mm to Defect, diameter is the chopped strand of 10-15 μ m.
In the present embodiment, described pitch is coal tar pitch, in the present embodiment, coal tar pitch is replaced with to a kind of in rock asphalt, petroleum pitch according to equivalent weight part, or according to equivalent weight part, replace with the mixture of rock asphalt and coal tar pitch, petroleum pitch, all qualified properties-correcting agent.
Embodiment tri-
The properties-correcting agent for bituminous pavement of the present embodiment, properties-correcting agent raw material comprises following component by weight: 15 parts of pitches, 45 parts of isoprene-isobutylene rubbers, 10 parts of mineral fibre, 20 parts of olefine kind resins, 10 parts of radical scavengers, 5 parts of organobentonites.
In the present embodiment, described olefine kind resin is t-butyl styrene and the multipolymer of Vinylstyrene in polyisobutene base material.
In the present embodiment, described radical scavenger is tetramethyl-benzoquinone, in the present embodiment, described tetramethyl-benzoquinone is replaced with to para benzoquinone, 2 according to equivalent weight part, a kind of in 2-phenylbenzene-1-trinitrophenyl-hydrazine, 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone, or replace with tetramethyl-benzoquinone and para benzoquinone, 2 according to equivalent weight part, the mixture of 2-phenylbenzene-1-trinitrophenyl-hydrazine, 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre is diabase fiber, in the present embodiment, described diabase fiber is replaced with to a kind of in andesite fiber, basalt fibre according to equivalent weight part, or according to equivalent weight part, replace with the mixture of diabase fiber and andesite fiber, basalt fibre, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre be surface through the chopped strand of expansion process, after 1450 ℃ of high-temperature fusion, to become continuous fibre and be cut into length be 15mm to Defect, diameter is the chopped strand of 10-15 μ m.
In the present embodiment, described pitch is petroleum pitch, in the present embodiment, petroleum pitch is replaced with to a kind of in coal tar pitch, rock asphalt according to equivalent weight part, or according to equivalent weight part, replace with the mixture of petroleum pitch and coal tar pitch, rock asphalt, all qualified properties-correcting agent.
Embodiment tetra-
The properties-correcting agent for bituminous pavement of the present embodiment, properties-correcting agent raw material comprises following component by weight: pitch 10-part, 38 parts of isoprene-isobutylene rubbers, 6 parts of mineral fibre, 15 parts of olefine kind resins, 3 parts of radical scavengers, 1 part of organobentonite.
In the present embodiment, described olefine kind resin is t-butyl styrene and the multipolymer of Vinylstyrene in polyisobutene base material.
In the present embodiment, described radical scavenger is 2-methyl-2-nitromethane, in the present embodiment, described 2-methyl-2-nitromethane is replaced with to para benzoquinone, tetramethyl-benzoquinone, 2 according to equivalent weight part, a kind of in 2-phenylbenzene-1-trinitrophenyl-hydrazine and phenyl-N-tert-butylnitrone, or replace with 2-methyl-2-nitromethane and para benzoquinone, tetramethyl-benzoquinone, 2 according to equivalent weight part, the mixture of 2-phenylbenzene-1-trinitrophenyl-hydrazine and phenyl-N-tert-butylnitrone, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre is andesite fiber, in the present embodiment, described andesite fiber is replaced with to a kind of in basalt fibre, diabase fiber according to equivalent weight part, or according to equivalent weight part, replace with the mixture of andesite fiber and basalt fibre, diabase fiber, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre be surface through the chopped strand of expansion process, after high-temperature fusion, to become continuous fibre and be cut into length be 10-20mm to Defect, diameter is the chopped strand of 10-15 μ m.
In the present embodiment, described pitch is coal tar pitch, in the present embodiment, coal tar pitch is replaced with to a kind of in rock asphalt, petroleum pitch according to equivalent weight part, or according to equivalent weight part, replace with the mixture of coal tar pitch and rock asphalt, petroleum pitch, all qualified properties-correcting agent.
Embodiment five
The properties-correcting agent for bituminous pavement of the present embodiment, properties-correcting agent raw material comprises following component by weight: 15 parts of pitches, 45 parts of isoprene-isobutylene rubbers, 10 parts of mineral fibre, 20 parts of olefine kind resins, 8 parts of radical scavengers, 5 parts of organobentonites.
In the present embodiment, described olefine kind resin is t-butyl styrene and the multipolymer of Vinylstyrene in polyisobutene base material.
In the present embodiment, described radical scavenger is phenyl-N-tert-butylnitrone, in the present embodiment, described phenyl-N-tert-butylnitrone is replaced with to para benzoquinone, tetramethyl-benzoquinone, 2-methyl-2-nitromethane and 2 according to equivalent weight part, a kind of in 2-phenylbenzene-1-trinitrophenyl-hydrazine, or replace with phenyl-N-tert-butylnitrone and para benzoquinone, tetramethyl-benzoquinone, 2-methyl-2-nitromethane and 2 according to equivalent weight part, the mixture of 2-phenylbenzene-1-trinitrophenyl-hydrazine, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre is diabase fiber, in the present embodiment, described diabase fiber is replaced with to a kind of in andesite fiber, basalt fibre according to equivalent weight part, or according to equivalent weight part, replace with the mixture of diabase fiber and andesite fiber, basalt fibre, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre be surface through the chopped strand of expansion process, after 1450-1500 high-temperature fusion, to become continuous fibre and be cut into length be 10-20mm to Defect, diameter is the chopped strand of 10-15 μ m.
In the present embodiment, described pitch is rock asphalt, in the present embodiment, rock asphalt is replaced with to a kind of in coal tar pitch, petroleum pitch according to equivalent weight part, or according to equivalent weight part, replace with the mixture of rock asphalt and coal tar pitch, petroleum pitch, all qualified properties-correcting agent.
Embodiment six
The properties-correcting agent for bituminous pavement of the present embodiment, properties-correcting agent raw material comprises following component by weight: 8 parts of pitches, 42 parts of isoprene-isobutylene rubbers, 4 parts of mineral fibre, 20 parts of olefine kind resins, 2 parts of radical scavengers, 5 parts of organobentonites.
In the present embodiment, described olefine kind resin is t-butyl styrene and the multipolymer of Vinylstyrene in polyisobutene base material.
In the present embodiment, described radical scavenger is 2-methyl-2-nitromethane, in the present embodiment, described 2-methyl-2-nitromethane is replaced with to para benzoquinone, tetramethyl-benzoquinone, 2 according to equivalent weight part, a kind of in 2-phenylbenzene-1-trinitrophenyl-hydrazine and phenyl-N-tert-butylnitrone, or replace with 2-methyl-2-nitromethane and para benzoquinone, tetramethyl-benzoquinone, 2 according to equivalent weight part, the mixture of 2-phenylbenzene-1-trinitrophenyl-hydrazine and phenyl-N-tert-butylnitrone, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre is andesite fiber, in the present embodiment, described andesite fiber is replaced with to a kind of in basalt fibre, diabase fiber according to equivalent weight part, or according to equivalent weight part, replace with the mixture of andesite fiber and basalt fibre, diabase fiber, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre be surface through the chopped strand of expansion process, after high-temperature fusion, to become continuous fibre and be cut into length be 10-20mm to Defect, diameter is the chopped strand of 10-15 μ m.
In the present embodiment, described pitch is coal tar pitch, in the present embodiment, coal tar pitch is replaced with to a kind of in rock asphalt, petroleum pitch according to equivalent weight part, or according to equivalent weight part, replace with the mixture of coal tar pitch and rock asphalt, petroleum pitch, all qualified properties-correcting agent.
Embodiment seven
The properties-correcting agent for bituminous pavement of the present embodiment, properties-correcting agent raw material comprises following component by weight: 10 parts of pitches, 45 parts of isoprene-isobutylene rubbers, 6 parts of mineral fibre, 20 parts of olefine kind resins, 3 parts of radical scavengers, 5 parts of organobentonites.
In the present embodiment, described olefine kind resin is t-butyl styrene and the multipolymer of Vinylstyrene in polyisobutene base material.
In the present embodiment, described radical scavenger is 2, 2-phenylbenzene-1-trinitrophenyl-hydrazine, in the present embodiment, by described 2, 2-phenylbenzene-1-trinitrophenyl-hydrazine replaces with para benzoquinone according to equivalent weight part, tetramethyl-benzoquinone, a kind of in 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone, or replace with 2 according to equivalent weight part, 2-phenylbenzene-1-trinitrophenyl-hydrazine and para benzoquinone, tetramethyl-benzoquinone, the mixture of 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre is basalt fibre, in the present embodiment, described basalt fibre is replaced with to a kind of in andesite fiber, diabase fiber according to equivalent weight part, or according to equivalent weight part, replace with the mixture of basalt fibre and andesite fiber, diabase fiber, all qualified properties-correcting agent, products obtained therefrom character there is no significant difference.
In the present embodiment, described mineral fibre be surface through the chopped strand of expansion process, after 1450-1500 high-temperature fusion, to become continuous fibre and be cut into length be 10-20mm to Defect, diameter is the chopped strand of 10-15 μ m.
In the present embodiment, described pitch is rock asphalt, in the present embodiment, rock asphalt is replaced with to a kind of in coal tar pitch, petroleum pitch according to equivalent weight part, or according to equivalent weight part, replace with the mixture of rock asphalt and coal tar pitch, petroleum pitch, all qualified properties-correcting agent.
After each component is mixed, by twin screw extruder extruding pelletization, after extrusion temperature is 120-200 ℃ of bottom brace granulation, add in asphalt, compound paves after mixing, and after paving, can roll immediately following paver.
The performance test of the properties-correcting agent for bituminous pavement of the present invention:
For the properties-correcting agent of bituminous pavement, in 0.2% ratio, join asphalt; By wheel tracking test, test-results is as follows:
Freeze thawing split test result: (two-sided hitting real 50 times)
| Project | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example six | Example 7 |
| Freeze thawing cleavage strength (%) | 99.8 | 99.5 | 90 | 89 | 96 | 95 | 89 |
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (9)
1. for a properties-correcting agent for bituminous pavement, it is characterized in that: properties-correcting agent raw material comprises following component by weight: pitch 5-15 part, isoprene-isobutylene rubber 35-45 part, mineral fibre 4-10 part, olefine kind resin 15-20 part, radical scavenger 1-10 part, organobentonite 1-5 part.
2. the properties-correcting agent for bituminous pavement according to claim 1, is characterized in that: properties-correcting agent raw material comprises following component by weight: pitch 10-15 part, isoprene-isobutylene rubber 38-45 part, mineral fibre 6-10 part, olefine kind resin 15-20 part, radical scavenger 3-8 part, organobentonite 1-5 part.
3. the properties-correcting agent for bituminous pavement according to claim 2, is characterized in that: properties-correcting agent raw material comprises 12 parts of following component pitches, 40 parts of isoprene-isobutylene rubbers, 8 parts of mineral fibre, 17 parts of olefine kind resins, 5 parts of radical scavengers, 3 parts of organobentonites by weight.
4. the properties-correcting agent for bituminous pavement according to claim 3, is characterized in that: described olefine kind resin is the long carbochain hydrocarbon resin of C6-C18.
5. the properties-correcting agent for bituminous pavement according to claim 4, is characterized in that: described olefine kind resin is t-butyl styrene and the multipolymer of Vinylstyrene in polyisobutene base material.
6. the properties-correcting agent for bituminous pavement according to claim 5, it is characterized in that: described radical scavenger is one or more mixtures in 2,2-phenylbenzene-1-trinitrophenyl-hydrazine, para benzoquinone, tetramethyl-benzoquinone, 2-methyl-2-nitromethane and phenyl-N-tert-butylnitrone.
7. the properties-correcting agent for bituminous pavement according to claim 6, is characterized in that: described mineral fibre is one or more mixtures in basalt fibre, andesite fiber, diabase fiber.
8. the properties-correcting agent for bituminous pavement according to claim 7, is characterized in that: described mineral fibre is the chopped strand of surface through expansion process, and described staple length is 10-20mm, and diameter is 10-15 μ m.
9. the properties-correcting agent for bituminous pavement according to claim 8, is characterized in that: described pitch is one or more mixtures in rock asphalt, coal tar pitch, petroleum pitch.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104387782A (en) * | 2014-12-14 | 2015-03-04 | 李保集 | Crack-resistant road asphalt and preparation method thereof |
| CN104893097A (en) * | 2015-05-26 | 2015-09-09 | 苏州宏恒化工有限公司 | Method for preparing PP (Polypropylene) composite material for packing rope |
| CN105802264A (en) * | 2014-12-14 | 2016-07-27 | 李保集 | Anti-crack type road asphalt and preparation method thereof |
| CN106398239A (en) * | 2015-11-27 | 2017-02-15 | 梁清源 | Novel anti-rutting agent and preparation method thereof |
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| CN101830669A (en) * | 2010-04-23 | 2010-09-15 | 广东工业大学 | Method for manufacturing synthetic asphalt for extra heavy traffic |
| CN102432230A (en) * | 2011-09-20 | 2012-05-02 | 武汉理工大学 | Preparation method of deicing, anti-skid and noise-reduction asphalt pavement material |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830669A (en) * | 2010-04-23 | 2010-09-15 | 广东工业大学 | Method for manufacturing synthetic asphalt for extra heavy traffic |
| CN102432230A (en) * | 2011-09-20 | 2012-05-02 | 武汉理工大学 | Preparation method of deicing, anti-skid and noise-reduction asphalt pavement material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387782A (en) * | 2014-12-14 | 2015-03-04 | 李保集 | Crack-resistant road asphalt and preparation method thereof |
| CN105802264A (en) * | 2014-12-14 | 2016-07-27 | 李保集 | Anti-crack type road asphalt and preparation method thereof |
| CN105802264B (en) * | 2014-12-14 | 2018-05-29 | 江苏增光复合材料科技有限公司 | A kind of crack resistance type road asphalt and preparation method thereof |
| CN104893097A (en) * | 2015-05-26 | 2015-09-09 | 苏州宏恒化工有限公司 | Method for preparing PP (Polypropylene) composite material for packing rope |
| CN106398239A (en) * | 2015-11-27 | 2017-02-15 | 梁清源 | Novel anti-rutting agent and preparation method thereof |
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