CN105802041A - Asphalt pavement repair material and preparation method thereof - Google Patents

Asphalt pavement repair material and preparation method thereof Download PDF

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Publication number
CN105802041A
CN105802041A CN201610226257.8A CN201610226257A CN105802041A CN 105802041 A CN105802041 A CN 105802041A CN 201610226257 A CN201610226257 A CN 201610226257A CN 105802041 A CN105802041 A CN 105802041A
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weight portion
organic matrix
powder
additive
temperature
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CN105802041B (en
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吴亮
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725th Research Institute of CSIC
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725th Research Institute of CSIC
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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
    • C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
    • C08L23/286—Chlorinated polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/002—Methods
    • 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
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • 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
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

Abstract

The invention discloses an additive for asphalt pavement construction and a preparation method of the additive. The additive is prepared from 40%-50% of an organic matrix, 35%-40% of reinforced particles, 8%-10% of reinforced fibers and 5%-7% of an aid, wherein the organic matrix is prepared from polyethylene modified asphalt, butyl rubber modified asphalt, polyethylene wax and chlorinated polyethylene; the reinforced particles are formed by sintering and grinding kaolin, clay, coal gangue, aluminum ash, red mud, monatomic silicon powder and metal powder; the reinforced fibers are formed by mixing polyacrylonitrile fibers, aramid fibers and epoxy resin; the aid is formed by mixing calcium stearate, silica powder, sodium hydroxide and sulfur. During usage, construction is conducted after the additive is mixed with existing asphalt concrete, so that a constructed pavement has higher strength and abrasion resistance, and the service life of paved asphalt pavement can be prolonged substantially.

Description

A kind of bituminous pavement repairing material and preparation method thereof
Technical field
The present invention relates to the bituminous paving in road construction field, a kind of asphalt pavement construction additive and preparation method thereof.
Background technology
Bituminous paving be bituminous concrete is paved, roller-compaction and various types of road surfaces of being formed.Bituminous concrete is with having the asphalt material of certain viscosity and suitable consumption and the mineral aggregate of certain grating, through the mixture that abundant mix is formed.Bituminous concrete is as the long-term impact of asphalt pavement material, the repeated action of fleet vehicles load to be born, and environmental factors.So bituminous concrete is while possessing certain ability to bear, it is necessary to possess the durability of good opposing effect of natural environment.It is to say, want to show the stability under enough hot environments, the crack resistance under low-temperature condition, good water stability, lasting ageing resistance and be beneficial to the features such as safe skid resistance, the service function good to ensure bituminous paving.But in prior art, the intensity of bituminous paving is the most inadequate, so after heavy vehicle is repeatedly current, easily cause the damage of Local Road Surface, and when repairing, need the road surface excision damaged, peel off, newer bituminous concrete is paved, roller-compaction, in the meantime, the unimpeded of road is often affected.
Summary of the invention
For solving the problem that existing bituminous paving intensity deficiency causes cracking, needing often to keep in repair after current bulk transport car time length, the invention provides a kind of asphalt pavement construction additive and preparation method thereof, in use, this additive is constructed after existing bituminous concrete mixing again, so that the road surface after Shi Gong has higher intensity and wearability, it is possible to increase substantially the service life on institute's asphalt road surface.
nullThe present invention solves that the technical scheme that above-mentioned technical problem is used is: a kind of asphalt pavement construction additive，According to weight ratio，By the organic matrix of 45-50%、The enhancing granule of 35-40%、The reinforcing fiber of 8-10% and the adjuvant of 5-7% are made，Wherein，Described organic matrix is by the polyethylene modified asphalt of 4-5 weight portion、The butyl rubber modified pitch of 6-8 weight portion、The Tissuemat E of 2-3 weight portion and the chlorinated polyethylene composition of 7-9 weight portion，Described enhancing granule is by the Kaolin of 16-18 weight portion、The clay of 6-7 weight portion、The gangue of 12-13 weight portion、The aluminum ash of 5-7 weight portion、The red mud of 8-9 weight portion、The simple substance silica flour of 2-3 weight portion and the metal sintered rear grinding of 5-7 weight portion form，Described reinforcing fiber is by the polyacrylonitrile fibre of 2-3 weight portion、The aramid fiber of 3-5 weight portion and the epoxy resin of 5-7 weight portion mix，Described adjuvant is by the calcium stearate of 7-8 weight portion、The silicon powder of 4-6 weight portion、The sodium hydroxide of 1-2 part and the sulfur of 2-3 part mix.
Described metal powder is that aluminium powder, magnesium powder and iron powder mix according to the ratio of weight ratio 2:1:1.
Possibly together with the scrap rubber of 3-5 weight portion in described organic matrix.
The particle diameter of described enhancing granule is less than 5mm, and preferred scheme is, is divided into three grades of 1-5mm, 0.074-1mm and less than 0.074mm these three grating, and the weight ratio of three kinds of gratings is 3:5:2.
The preparation method of above-mentioned asphalt pavement construction additive, comprises the following steps:
1) each material is weighed according to described ratio, standby；
2) selecting step 1) load weighted calcium stearate, silicon powder, wear into fineness after sodium hydroxide and sulfur mixing less than the fine powder of 300 microns, obtain adjuvant, standby；
3) selecting step 1) load weighted polyacrylonitrile fibre, aramid fiber and epoxy resin mixing after obtain reinforcing fiber, standby；
4) selecting step 1) load weighted polyethylene modified asphalt, butyl rubber modified pitch, Tissuemat E and chlorinated polyethylene send in internal rubber mixer, mixing 0.5-1h under conditions of temperature is 130-140 DEG C, obtains organic matrix, standby；
5) by step 2) reinforcing fiber that obtains of the adjuvant that obtains and step 3) is sequentially added in the organic matrix of step 4), and continues mixing 1-2h in internal rubber mixer, and melting temperature is 160-170 DEG C, and after mixing end, natural cooling obtains jelly, standby；
6) selecting step 1) load weighted Kaolin, clay, gangue, aluminum ash, red mud and metal powder mix homogeneously are sent in sintering furnace, 2-3h is sintered under conditions of 1900 DEG C, then in sintering furnace, blast carbon dioxide cooling, when in-furnace temperature is reduced to 1700 DEG C, simple substance silica flour is joined in sintering furnace, in holding sintering furnace, under conditions of carbon dioxide atmosphere, furnace temperature is increased again to 1900 DEG C, this temperature is then kept to sinter 3-5h, after being cooled to room temperature rapidly, grinding i.e. obtains strengthening granule, the jelly that this enhancing granule and step 5) obtain is packed postscript respectively and obtains product.
The room temperature that is cooled to rapidly in described step 6) refers to: is first cooled to 1750 DEG C with the rate of temperature fall of 0.5 DEG C/min, is cooled to room temperature rapidly with the rate of temperature fall of 100-300 DEG C/min the most again.
The additive of the present invention is in use, first by jelly thermoplastic, and make itself and the asphalt mixing paved the way uniformly (at least mix 20min, generally 20-60min), to strengthen in the mixture after granule joins mix the most again, last and mineral aggregate mix forms bituminous concrete and carries out road surfacing construction.
The consumption of this additive is that road tar per ton adds the additive no less than 10kg, it is generally preferable to be that one ton of Colophonium adds 50-100kg additive.
Beneficial effect: the present invention compared with prior art, has the advantage that
1) organic matrix of the present invention carries out mixing with adjuvant, polyethylene modified asphalt, butyl rubber modified pitch, Tissuemat E and chlorinated polyethylene are at high temperature cross-linked with each other, then the calcium stearate in adjuvant, silicon powder are sufficient filling with in wherein, the performance making organic matrix is more stable, meanwhile, under high temperature, a small amount of sodium hydroxide in adjuvant manufactures the alkaline environment of local, organic matrix then can be modified by sulfur, thus changes its performance further；
2) after the organic matrix in the present invention is mixing with reinforcing fiber, polyacrylonitrile fibre in reinforcing fiber and aramid fiber, there is high intensity, high-modulus, fast light, high temperature resistant, wear-resisting, acid-alkali-corrosive-resisting, resisting fatigue, creep resisting excellent properties, its intensity is 5-6 times of steel fibre, modulus is 2-3 times of steel fibre, toughness is 2 times of steel fibre, cyclization or aramid fiber are mixing with organic matrix, it is possible to be effectively improved and ultimately form the durability on road surface, impermeability and freeze-thaw resistance；Simultaneously, epoxy resin in adjuvant, not only increase water resistance, and ensure the highest crosslink density, and nonmetallic surface is had the adhesive strength of excellence, so that the adjuvant wherein added can be the most bonding with organic matrix, the rotproofness of organic matrix, freeze-thaw resistance and permeability resistance are greatly improved；
3) organic matrix of the present invention is using polyethylene modified asphalt, butyl rubber modified pitch, Tissuemat E and chlorinated polyethylene as main body, will not produce with the Colophonium paved the way the most in use and repel, when preparing bituminous concrete, it is possible to well with existing Colophonium, mineral aggregate crosslinking；
4) Kaolin, clay, gangue, aluminum ash and the red mud contained in the enhancing granule of the present invention is at 1900 DEG C of sintering so that ferrum oxide (containing in red mud), aluminium oxide (containing in aluminum ash) and silicon oxide (gangue) reaction contained, and forms SiO2- Fe2O3、Mg- Fe2O3And the mullite crystal of pin, column, increase substantially intensity and the thermal shock resistance strengthening granule, and by adding metal powder wherein, due to sintering temperature and sintering time, the meeting disperse of small part metal powder is in the SiO of the most thoroughly molding2- Fe2O3、Mg- Fe2O3And in the mullite structure of pin, column, thus further increasing intensity, the metal powder of the overwhelming majority still keeps its form and performance to be blended in enhancing granule, is formed and is similar to ceramic-metallic structure and performance, increases substantially its wearability and intensity；Afterwards, the simple substance silica flour added sinters in carbon dioxide environment, still retain elemental form, and at high temperature form visco-plasticity phase, Dispersed precipitate, in strengthening granule, improves the toughness strengthening granule, improves and strengthens the thermal shock resistance of granule and overall homogeneity, and then after joining in bituminous concrete, increase substantially the intensity of bituminous concrete, wearability and weatherability；
5) mode that the present invention cools down after using sintering rapidly, can make to produce between the enhancing in enhancing granule mutually crack defect, thus be prone to pulverize on the premise of not destroying enhancing mutually.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is further elaborated, material component used in each embodiment, is this area convenient source.
Embodiment 1
nullA kind of asphalt pavement construction additive，According to weight ratio，By the organic matrix of 45%、The enhancing granule of 40%、The reinforcing fiber of 10% and the adjuvant of 5% are made，Wherein，Described organic matrix is by the polyethylene modified asphalt of 4 weight portions、The butyl rubber modified pitch of 6 weight portions、The Tissuemat E of 2 weight portions and the chlorinated polyethylene composition of 7 weight portions，Described enhancing granule is by the Kaolin of 16 weight portions、The clay of 6 weight portions、The gangue of 12 weight portions、The aluminum ash of 5 weight portions、The red mud of 8 weight portions、The simple substance silica flour of 2 weight portions and the metal sintered rear grinding of 5 weight portions form，Described reinforcing fiber is by the polyacrylonitrile fibre of 2 weight portions、The aramid fiber of 3 weight portions and the epoxy resin of 5 weight portions mix，Described adjuvant is by the calcium stearate of 7 weight portions、The silicon powder of 4 weight portions、The sulfur of the sodium hydroxide of 1 part and 2 parts mixes；Described metal powder is that aluminium powder, magnesium powder and iron powder mix according to the ratio of weight ratio 2:1:1.
The preparation method of above-mentioned asphalt pavement construction additive, comprises the following steps:
1) each material is weighed according to described ratio, standby；
2) selecting step 1) load weighted calcium stearate, silicon powder, wear into fineness after sodium hydroxide and sulfur mixing less than the fine powder of 300 microns, obtain adjuvant, standby；
3) selecting step 1) load weighted polyacrylonitrile fibre, aramid fiber and epoxy resin mixing after obtain reinforcing fiber, standby；
4) selecting step 1) load weighted polyethylene modified asphalt, butyl rubber modified pitch, Tissuemat E and chlorinated polyethylene send in internal rubber mixer, mixing 1h under conditions of temperature is 130 DEG C, obtains organic matrix, standby；
5) by step 2) reinforcing fiber that obtains of the adjuvant that obtains and step 3) is sequentially added in the organic matrix of step 4), and continues mixing 2h in internal rubber mixer, and melting temperature is 160 DEG C, and after mixing end, natural cooling obtains jelly, standby；
6) selecting step 1) load weighted Kaolin, clay, gangue, aluminum ash, red mud and metal powder mix homogeneously are sent in sintering furnace, 2h is sintered under conditions of 1900 DEG C, then in sintering furnace, blast carbon dioxide cooling, when in-furnace temperature is reduced to 1700 DEG C, simple substance silica flour is joined in sintering furnace, in holding sintering furnace, under conditions of carbon dioxide atmosphere, furnace temperature is increased again to 1900 DEG C, this temperature is then kept to sinter 3h, after being cooled to room temperature rapidly, grinding i.e. obtains strengthening granule, the jelly that this enhancing granule and step 5) obtain is packed postscript respectively and obtains product.
It is more than the basic embodiment of the present embodiment, can be further optimized and limit on the basis of above:
As, possibly together with the scrap rubber of 3 weight portions in described organic matrix；
And for example, the particle diameter of described enhancing granule is less than 5mm, and preferred scheme is, is divided into three grades of 1-5mm, 0.074-1mm and less than 0.074mm these three grating, and the weight ratio of three kinds of gratings is 3:5:2；
For another example, the room temperature that is cooled to rapidly in described step 6) refers to: is first cooled to 1750 DEG C with the rate of temperature fall of 0.5 DEG C/min, is cooled to room temperature rapidly with the rate of temperature fall of 100 DEG C/min the most again.
Embodiment 2
nullA kind of asphalt pavement construction additive，According to weight ratio，By the organic matrix of 50%、The enhancing granule of 35%、The reinforcing fiber of 8% and the adjuvant of 7% are made，Wherein，Described organic matrix is by the polyethylene modified asphalt of 5 weight portions、The butyl rubber modified pitch of 8 weight portions、The Tissuemat E of 3 weight portions and the chlorinated polyethylene composition of 9 weight portions，Described enhancing granule is by the Kaolin of 18 weight portions、The clay of 7 weight portions、The gangue of 13 weight portions、The aluminum ash of 7 weight portions、The red mud of 9 weight portions、The simple substance silica flour of 3 weight portions and the metal sintered rear grinding of 7 weight portions form，Described reinforcing fiber is by the polyacrylonitrile fibre of 3 weight portions、The aramid fiber of 5 weight portions and the epoxy resin of 7 weight portions mix，Described adjuvant is by the calcium stearate of 8 weight portions、The silicon powder of 6 weight portions、The sulfur of the sodium hydroxide of 2 parts and 3 parts mixes；Described metal powder is that aluminium powder, magnesium powder and iron powder mix according to the ratio of weight ratio 2:1:1.
The preparation method of above-mentioned asphalt pavement construction additive, comprises the following steps:
1) each material is weighed according to described ratio, standby；
2) selecting step 1) load weighted calcium stearate, silicon powder, wear into fineness after sodium hydroxide and sulfur mixing less than the fine powder of 300 microns, obtain adjuvant, standby；
3) selecting step 1) load weighted polyacrylonitrile fibre, aramid fiber and epoxy resin mixing after obtain reinforcing fiber, standby；
4) selecting step 1) load weighted polyethylene modified asphalt, butyl rubber modified pitch, Tissuemat E and chlorinated polyethylene send in internal rubber mixer, mixing 0.5h under conditions of temperature is 140 DEG C, obtains organic matrix, standby；
5) by step 2) reinforcing fiber that obtains of the adjuvant that obtains and step 3) is sequentially added in the organic matrix of step 4), and continues mixing 1h in internal rubber mixer, and melting temperature is 170 DEG C, and after mixing end, natural cooling obtains jelly, standby；
6) selecting step 1) load weighted Kaolin, clay, gangue, aluminum ash, red mud and metal powder mix homogeneously are sent in sintering furnace, 3h is sintered under conditions of 1900 DEG C, then in sintering furnace, blast carbon dioxide cooling, when in-furnace temperature is reduced to 1700 DEG C, simple substance silica flour is joined in sintering furnace, in holding sintering furnace, under conditions of carbon dioxide atmosphere, furnace temperature is increased again to 1900 DEG C, this temperature is then kept to sinter 5h, after being cooled to room temperature rapidly, grinding i.e. obtains strengthening granule, the jelly that this enhancing granule and step 5) obtain is packed postscript respectively and obtains product.
It is more than the basic embodiment of the present embodiment, can be further optimized and limit on the basis of above:
As, possibly together with the scrap rubber of 5 weight portions in described organic matrix；
And for example, the particle diameter of described enhancing granule is less than 5mm, and preferred scheme is, is divided into three grades of 1-5mm, 0.074-1mm and less than 0.074mm these three grating, and the weight ratio of three kinds of gratings is 3:5:2；
For another example, the room temperature that is cooled to rapidly in described step 6) refers to: is first cooled to 1750 DEG C with the rate of temperature fall of 0.5 DEG C/min, is cooled to room temperature rapidly with the rate of temperature fall of 300 DEG C/min the most again.
Embodiment 3
nullA kind of asphalt pavement construction additive，According to weight ratio，By the organic matrix of 47.5%、The enhancing granule of 37.5%、The reinforcing fiber of 9% and the adjuvant of 6% are made，Wherein，Described organic matrix is by the polyethylene modified asphalt of 4.5 weight portions、The butyl rubber modified pitch of 7 weight portions、The Tissuemat E of 2.5 weight portions and the chlorinated polyethylene composition of 8 weight portions，Described enhancing granule is by the Kaolin of 17 weight portions、The clay of 6.5 weight portions、The gangue of 12.5 weight portions、The aluminum ash of 6 weight portions、The red mud of 8.5 weight portions、The simple substance silica flour of 2.5 weight portions and the metal sintered rear grinding of 6 weight portions form，Described reinforcing fiber is by the polyacrylonitrile fibre of 2.5 weight portions、The aramid fiber of 4 weight portions and the epoxy resin of 6 weight portions mix，Described adjuvant is by the calcium stearate of 7.5 weight portions、The silicon powder of 5 weight portions、The sulfur of the sodium hydroxide of 1.5 parts and 2.5 parts mixes；Described metal powder is that aluminium powder, magnesium powder and iron powder mix according to the ratio of weight ratio 2:1:1.
The preparation method of above-mentioned asphalt pavement construction additive, comprises the following steps:
1) each material is weighed according to described ratio, standby；
2) selecting step 1) load weighted calcium stearate, silicon powder, wear into fineness after sodium hydroxide and sulfur mixing less than the fine powder of 300 microns, obtain adjuvant, standby；
3) selecting step 1) load weighted polyacrylonitrile fibre, aramid fiber and epoxy resin mixing after obtain reinforcing fiber, standby；
4) selecting step 1) load weighted polyethylene modified asphalt, butyl rubber modified pitch, Tissuemat E and chlorinated polyethylene send in internal rubber mixer, mixing 45min under conditions of temperature is 135 DEG C, obtains organic matrix, standby；
5) by step 2) reinforcing fiber that obtains of the adjuvant that obtains and step 3) is sequentially added in the organic matrix of step 4), and continues mixing 1.5h in internal rubber mixer, and melting temperature is 165 DEG C, and after mixing end, natural cooling obtains jelly, standby；
6) selecting step 1) load weighted Kaolin, clay, gangue, aluminum ash, red mud and metal powder mix homogeneously are sent in sintering furnace, 2.5h is sintered under conditions of 1900 DEG C, then in sintering furnace, blast carbon dioxide cooling, when in-furnace temperature is reduced to 1700 DEG C, simple substance silica flour is joined in sintering furnace, in holding sintering furnace, under conditions of carbon dioxide atmosphere, furnace temperature is increased again to 1900 DEG C, this temperature is then kept to sinter 4h, after being cooled to room temperature rapidly, grinding i.e. obtains strengthening granule, the jelly that this enhancing granule and step 5) obtain is packed postscript respectively and obtains product.
It is more than the basic embodiment of the present embodiment, can be further optimized and limit on the basis of above:
As, possibly together with the scrap rubber of 4 weight portions in described organic matrix；
And for example, the particle diameter of described enhancing granule is less than 5mm, and preferred scheme is, is divided into three grades of 1-5mm, 0.074-1mm and less than 0.074mm these three grating, and the weight ratio of three kinds of gratings is 3:5:2；
For another example, the room temperature that is cooled to rapidly in described step 6) refers to: is first cooled to 1750 DEG C with the rate of temperature fall of 0.5 DEG C/min, is cooled to room temperature rapidly with the rate of temperature fall of 200 DEG C/min the most again.
In addition to above scheme, it is of course also possible to add the serpentine fine powder of the Gypsum Fibrosum preparata of 1-2 part, the bentonite of 1-2 part and 3-4 part in adjuvant, the particle diameter of serpentine fine powder is less than 0.074mm；
Further, adjuvant can also add the iron mine waste residue of 4-5 part, the chromite powder of 2-3 part and the ilmenite powder of 3-4 part, thus improving the intensity of product of the present invention further, the fineness of iron mine waste residue, chromite powder and ilmenite powder is all less than 0.074mm.

Claims (6)

  1. null1. an asphalt pavement construction additive，It is characterized in that: according to weight ratio，By the organic matrix of 45-50%、The enhancing granule of 35-40%、The reinforcing fiber of 8-10% and the adjuvant of 5-7% are made，Wherein，Described organic matrix is by the polyethylene modified asphalt of 4-5 weight portion、The butyl rubber modified pitch of 6-8 weight portion、The Tissuemat E of 2-3 weight portion and the chlorinated polyethylene composition of 7-9 weight portion，Described enhancing granule is by the Kaolin of 16-18 weight portion、The clay of 6-7 weight portion、The gangue of 12-13 weight portion、The aluminum ash of 5-7 weight portion、The red mud of 8-9 weight portion、The simple substance silica flour of 2-3 weight portion and the metal sintered rear grinding of 5-7 weight portion form，Described reinforcing fiber is by the polyacrylonitrile fibre of 2-3 weight portion、The aramid fiber of 3-5 weight portion and the epoxy resin of 5-7 weight portion mix，Described adjuvant is by the calcium stearate of 7-8 weight portion、The silicon powder of 4-6 weight portion、The sodium hydroxide of 1-2 part and the sulfur of 2-3 part mix.
  2. A kind of asphalt pavement construction additive the most according to claim 1, it is characterised in that: described metal powder is that aluminium powder, magnesium powder and iron powder mix according to the ratio of weight ratio 2:1:1.
  3. A kind of asphalt pavement construction additive the most according to claim 1, it is characterised in that: possibly together with the scrap rubber of 3-5 weight portion in described organic matrix.
  4. A kind of asphalt pavement construction additive the most according to claim 1, it is characterised in that: the particle diameter of described enhancing granule is less than 3mm.
  5. The preparation method of a kind of asphalt pavement construction additive the most according to claim 1, it is characterised in that comprise the following steps:
    1) each material is weighed according to the ratio described in claim 1, standby；
    2) selecting step 1) load weighted calcium stearate, silicon powder, wear into fineness after sodium hydroxide and sulfur mixing less than the fine powder of 300 microns, obtain adjuvant, standby；
    3) selecting step 1) load weighted polyacrylonitrile fibre, aramid fiber and epoxy resin mixing after obtain reinforcing fiber, standby；
    4) selecting step 1) load weighted polyethylene modified asphalt, butyl rubber modified pitch, Tissuemat E and chlorinated polyethylene send in internal rubber mixer, mixing 0.5-1h under conditions of temperature is 130-140 DEG C, obtains organic matrix, standby；
    5) by step 2) reinforcing fiber that obtains of the adjuvant that obtains and step 3) is sequentially added in the organic matrix of step 4), and continues mixing 1-2h in internal rubber mixer, and melting temperature is 160-170 DEG C, and after mixing end, natural cooling obtains jelly, standby；
    6) selecting step 1) load weighted Kaolin, clay, gangue, aluminum ash, red mud and metal powder mix homogeneously are sent in sintering furnace, 2-3h is sintered under conditions of 1900 DEG C, then in sintering furnace, blast carbon dioxide cooling, when in-furnace temperature is reduced to 1700 DEG C, simple substance silica flour is joined in sintering furnace, in holding sintering furnace, under conditions of carbon dioxide atmosphere, furnace temperature is increased again to 1900 DEG C, this temperature is then kept to sinter 3-5h, after being cooled to room temperature rapidly, grinding i.e. obtains strengthening granule, the jelly that this enhancing granule and step 5) obtain is packed postscript respectively and obtains product.
  6. The preparation method of a kind of asphalt pavement construction additive the most according to claim 1, it is characterized in that: the room temperature that is cooled to rapidly in described step 6) refers to: be first cooled to 1750 DEG C with the rate of temperature fall of 0.5 DEG C/min, be cooled to room temperature rapidly with the rate of temperature fall of 100-300 DEG C/min the most again.
CN201610226257.8A 2016-04-13 2016-04-13 A kind of bituminous pavement repairing material and preparation method thereof Active CN105802041B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107033386A (en) * 2017-04-14 2017-08-11 长安大学 Nanometer iron powder raising pitch is anti-aging or reduces the application of road surface heavy metal ion
CN107033610A (en) * 2016-11-23 2017-08-11 北京东方雨虹防水技术股份有限公司 A kind of fiber reinforcement type modified pitch roofing healant and preparation method thereof
CN107033612A (en) * 2017-04-13 2017-08-11 桂林理工大学 A kind of preparation method of red mud modified pitch
CN109337297A (en) * 2018-10-17 2019-02-15 河海大学 A kind of road and bridge mat formation with high bitumen content cold mixing bituminous epoxy and the preparation method and application thereof
CN111499240A (en) * 2020-03-16 2020-08-07 山东大学 Red mud fiber composite material, preparation method thereof and application thereof in modified asphalt
CN114806196A (en) * 2022-04-07 2022-07-29 江西新越沥青有限公司 Preparation method of modified asphalt with heat preservation and insulation functions

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CN101445338A (en) * 2008-11-27 2009-06-03 武汉理工大学 Method for producing wet-mixing, skid-resistance and noise-reduction asphalt road surface material

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN107033610A (en) * 2016-11-23 2017-08-11 北京东方雨虹防水技术股份有限公司 A kind of fiber reinforcement type modified pitch roofing healant and preparation method thereof
CN107033610B (en) * 2016-11-23 2020-01-14 北京东方雨虹防水技术股份有限公司 Fiber-reinforced modified asphalt roof repairing agent and preparation method thereof
CN107033612A (en) * 2017-04-13 2017-08-11 桂林理工大学 A kind of preparation method of red mud modified pitch
CN107033386A (en) * 2017-04-14 2017-08-11 长安大学 Nanometer iron powder raising pitch is anti-aging or reduces the application of road surface heavy metal ion
CN109337297A (en) * 2018-10-17 2019-02-15 河海大学 A kind of road and bridge mat formation with high bitumen content cold mixing bituminous epoxy and the preparation method and application thereof
CN109337297B (en) * 2018-10-17 2021-02-02 河海大学 High-asphalt-content cold-mix epoxy asphalt for road and bridge pavement and preparation method and application thereof
CN111499240A (en) * 2020-03-16 2020-08-07 山东大学 Red mud fiber composite material, preparation method thereof and application thereof in modified asphalt
CN111499240B (en) * 2020-03-16 2022-02-22 山东大学 Red mud fiber composite material, preparation method thereof and application thereof in modified asphalt
CN114806196A (en) * 2022-04-07 2022-07-29 江西新越沥青有限公司 Preparation method of modified asphalt with heat preservation and insulation functions

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