CN105776960A - Preparation process for asphalt mixture - Google Patents
Preparation process for asphalt mixture Download PDFInfo
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- CN105776960A CN105776960A CN201610253534.4A CN201610253534A CN105776960A CN 105776960 A CN105776960 A CN 105776960A CN 201610253534 A CN201610253534 A CN 201610253534A CN 105776960 A CN105776960 A CN 105776960A
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- asphalt
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- fiber
- rubble
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
- C04B14/4643—Silicates other than zircon
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
Abstract
The invention discloses a preparation process for an asphalt mixture. The preparation process comprises preparation of basalt fibers, preparation of used tire grains, preparation of broken stones, asphalt heating, preparation of mineral powder and mixing, wherein 25 parts by weight of asphalt, 7 parts by weight of broken stones, 16 parts by weight of used tire grains, 38 parts by weight of basalt fibers and 8 parts by weight of mineral powder are mixed. According to the preparation process, the basalt fibers are added into the asphalt mixture, so that the strength, high temperature resistance and low temperature resistance of the asphalt mixture are improved, a pavement prepared from the asphalt mixture can be prevented from being damaged by the snow-ice weather in the north and exposure to the sun in the south, and is high in flatness, no wheel track is left, and potential safety hazards caused by wheel tracks are eliminated.
Description
Technical field
The invention belongs to road and bridge construction field, particularly relate to the preparation technology of the asphalt as highway pavement.
Background technology
There are bituminous paving and cement pavement in the road surface of highway or avenue highway, and bituminous paving is little to the friction of tire, but to hot day by thermal softening, automobile rolls and forms rut later, bonding Colophonium on tire, one is easily caused by vehicle accident, but tire infringement is bigger.And cement pavement is big to the friction of tire, the abrasion of tire is big, and relatively costly.
Therefore, the many employings in road surface laid now are asphaltic road-mix surface courses, and existing asphalt is different by binder used, can be divided into asphalt and coal tar pitch two big classes；Also there is employing some country or mixes bitumen mixing.By kind difference of gathering materials used, rubble, gravel, chiltern, slag several classes can be divided into, adopt the most general with rubble.Different by compound maximum particle size, the number classes such as coarse grain (less than 35～40 millimeters), middle grain (less than 20～25 millimeters), particulate (less than 10～15 millimeters), sand grains (less than 5～7 millimeters) can be divided into.Different by the compaction rate of compound, the number classes such as close-graded, half open gradation and open gradation can be divided into, open mix is also referred to as asphalt macadam.Wherein to mix the close-graded macadam-aggregate mix of heat paving durable in use for heat, and intensity is high, and good integrity is the representative materials building senior bituminous paving, applies the widest.Bituminous concrete is worked out by various countries different specifications, the heat that China formulates mixes hot black top compound technical specification, is called bituminous concrete with voidage 10% and following person, is subdivided into I type and II type, the porosity of I type is 3 (or 2)～6%, belongs to level of confidentiality distribution type；II type is 6～10%, belongs to half open gradation type；Voidage more than 10% person is called asphalt macadam, belongs to open gradation type.
Existing asphalt mainly has following several:
Asphalt mixture with plentiful aggregate (SAC)
The vehicle of larger flow is safe, comfortable on a highway to pass through at high speed, and asphalt surface course must have good antiskid performance.This just requires that asphalt surface course not only to have bigger coefficient of friction, and to have deeper surface texture depth (construction depth is that high speed traveling noise-decreasing floats, dabbling affects the principal element of driver's sight line) with minimizing water " LM ".Achievement in research in recent years shows: " the antiskid performance of asphalt surface course is the microtexture by surface layer structure and macrostructure two parts are formed.Wherein macrostructure derives from the match ratio of asphalt, is mainly determined by the thickness of aggregate, grating form ".
The mid-80 China starts to build high-grade highway, from the version of asphalt surface course: I type bituminous concrete, voidage 3%～6%, water penetration is little, good endurance, and the coefficient of friction of surface layer can reach requirement, but surface texture depth is less, far from reaching requirement.II type bituminous concrete voidage 6%～10%, surface structure is deep, and non-deformability is relatively strong, but its water penetration, durability are poor.In order to solve the antiskid performance (particularly surface layer is when construction depth is bigger, has again the version of good water proofing property) of asphalt surface course, stone asphalt Course is studied and is used.
Asphalt mixture with plentiful aggregate
Asphalt mixture with plentiful aggregate is to adopt more coarse crushing stone to form skeleton, and bitumastic fills the hole in skeleton the asphalt form making skeleton glued together and being formed.Specifically comprise: content of coarse aggregate 69%～78%, breeze 6%～10%, bitumen aggregate ratio about 5%.Through facts have proved of several high highways, stone asphalt Course had both been provided that deeper surface structure, there is again less space and less water penetration as traditional I type bituminous concrete, there is again good ability of anti-deformation (dynamic stability is higher) simultaneously.In other words, " many rubbles bituminous concrete had both had the advantage of traditional I type bituminous concrete, the advantage again with II type bituminous concrete, turn avoid the deficiency of two kinds of traditional asphalt xoncrete structure forms simultaneously.”
Stone mastic asphalt (SMA)
The German traffic of the sixties is very flourishing, the climatic characteristic (summer temperature about 20 DEG C, winter is not too cold) according to this country, and custom builds " pouring asphalt concrete " road surface.This structure Asphalt Content about 12%, breeze content is high.The rut using middle discovery road surface is extremely serious, additionally at that time the automobile of this country for anti-skidding needs, the commonly used tire (include Europe some countries also such) with nail, its result is pavement abrasion extremely serious (1 year can thinning about 4cm).In order to overcome day by day serious rut, reducing the abrasion on road surface, the match ratio of asphalt is adjusted by highway work person, increases the ratio of coarse aggregate, adds fiber stabilizer, defines the first shape of SMA structure.German traffic department in 1984 has formally formulated the design and construction specification on a SMA road surface, and SMA pavement structure form is able to perfect substantially.This novel pavement structure is successively in expanded, the utilization gradually of Germany, some countries of Europe.At the beginning of the nineties, American Highway circle thinks that its Pavement Road Surface Quality is good not as the pavement quality of European countries.Through investigating the gap finding there are two aspects: 1. in the utilization of modified pitch；2. in the version on road surface (i.e. SMA).1991, within 1992, start to be studied, promote this version of SMA, most typically: nineteen ninety-five Atlanta carry out network of highways for hosting the Olympic Games reconstructing with newly-built, all have employed this version of SMA and do road surface.
Stone mastic asphalt road surface (SMA)
Stone mastic asphalt (SMA) is a kind of bitumastic binder formed with Colophonium, breeze and fiber stabilizer, is filled in the mineral aggregate skeleton of gap grading, the compound formed.Its composition characteristic mainly includes two aspects: the structural framework of mutual interlocking composition high stability (non-deformability is strong) of coarse aggregate that 1. content is more；2. the bitumastic that fine aggregate breeze, Colophonium and fiber stabilizer form is by together with cementing for skeleton, and fills skeleton space, makes compound have flexible preferably and durability.
SMA structure composition can be summarized as " three-many-one-little, it may be assumed that coarse aggregate is many, breeze is many, Colophonium is many, fine aggregate few ".Specifically: 1. SMA is the asphalt of a kind of gap grading, the coarse aggregate ratio of more than 5mm is up to 70%～80%, and the consumption of breeze reaches 7%～13%, (" Ratio of filler bitumen " is beyond the restriction of general value 1.2).The gap grading being consequently formed, is rarely employed fine aggregate；2. for adding more Colophonium, increase breeze consumption on the one hand, use fiber as stabilizer simultaneously；3. asphalt content is more, and up to 6.5%～7%, caking property requires height, and wishes to select the Colophonium (preferably with modified pitch) that needle penetration is little, softening point is high, temperature stability is good
The feature of SMA: stone mastic asphalt is that current a kind of non-deformability generally acknowledged (using more) in the world is strong, the good bituminous mixtures for pavement surface of durability.Due to the good embedded squeezing of coarse aggregate, compound has extraordinary high temperature rutting resistance, simultaneously because the cementation of bitumastic, low-temperature deformation performance and water stability also have more improvement.Adding fiber stabilizer, make asphalt binder keep high viscosity, it paves and consolidation effect is better.Gap grading forms macrovoid on surface, and construction depth is big, and antiskid performance is good.The space of compound is only small again simultaneously, and ageing-resistant performance and durability are all fine, thus improve the Pavement Performance of asphalt comprehensively.
Rubber asphalt (AR)
Rubber asphalt is first junked tire protoplasm to be processed into rubber powder, it is combined in certain thickness grating ratio again, add multiple high polymer modifying agent simultaneously, and under the hot conditions of abundant mix (more than 180 DEG C), the cementing material of modified pitch formed after fully melting swollen reaction with matrix pitch.Rubber asphalt has the performances such as high-temperature stability, low temperature flexibility, ageing resistance, fatigue resistance, water resistant damageability, is ideal environment-friendly type ground surface material, is currently mainly applied to the stress absorbing layer in road structure and in surface layer.
Rubber asphalt, through the application of 50 years, defines two ripe graded mixture product lines.Compared with conventional pitch compound, rubber-asphalt mixture has higher asphalt content (about 7.5%).
Open mix (AR-OGFC): the aggregate blending being main by high consumption rubber asphalt (9-10%) and single particle size rubble forms.
Feature and application: open mix has good antiskid, splash-proof, noise-reducing and lasting stability, is the ideal surfaced layer material of highway and urban express way.The Reflective Cracking Resistance that open mix is prominent simultaneously, is widely used in cement pavement ultrathin overlay.
Gap-graded mix (AR-GAP): formed by median diameter gap grading and rubber asphalt mix.Dynamic stability reaches more than 3000, and freeze-thaw split value reaches more than 80.
Feature and application: be widely used in the intersection urban road surface layer more with speed change and reinforced structure owing to possessing good surface structure, dense water, anti-shear stability, gap grading and compound.
The performance advantage of Rubber-Asphalt Pavement:
Excellent fatigue resistance improves the endurance quality on road surface；
Owing to cementitious matter content is high, good springiness, improve the road surface resistivity to fatigue crack, reflection crack；
Stronger low temperature flexibility alleviates the temperature sensitivity on road surface；
Because cementitious matter content is high, oil film thick and contains antioxidant in tire, therefore improves road aging resistance, oxidation resistance；
The Rut resistance of excellence, permanent deformation resistance；
Owing to the durability of road is improved so that the maintenance costs of road significantly reduces；
Use junked tire in a large number, both saved the energy, be also beneficial to environmental conservation；
White carbon black in rubber can make road surface black preserve for a long time, high with the contrast of graticule, improves the safety of road；
When rubber asphalt is for asphalt, owing to construction thickness is thin, construction rapidly, shortens the engineering time.
Superpave asphalt (SUP)
Superpave asphalt is one of achievement in research of American strategy Highway Research Program (SHRP).Superpave is the abbreviation of SuperiorPerformingAsphaltPavement, the Chinese meaning " high performance asphalt pavement " Superpave Asphalt Mixture Design method exactly is a kind of brand-new Asphalt Mixture Design method, comprise asphalt binder specification, design of Asphalt Mix Volume, computer software and relevant use equipment, test method and standard.Sperpave asphalt mixture design is divided into three levels: mixture volume design designs also referred to as level I, uses gyratory compactor (SGC) and selects asphalt content according to volume designing requirement.The medium Pavement Performance level design of compound designs also referred to as level II, is designed as basis with mixture volume, and additional one group of SST and IDT tests to reach a series of performance prediction.The highest Pavement Performance level design of compound designs also referred to as level III, is designed as basis with mixture volume, and additional SST and IDT test is to test in a wide temperature excursion.Owing to containing trial stretch and result widely, analyze the performance prediction level that can provide more reliable completely.Superpave Asphalt Mixture Design system is the weather according to project location and design traffic volume, material is selected all to concentrate in volume-designed method with asphalt mixture design, the method requires when Designing Asphalt Pavement, take into full account and affect to temperature road pavement within the period of service, require road surface with can meeting high-temperature behavior requirement when the highest design temperature, do not produce excessively rut；When road surface minimum temperature, cryogenic property can be met requirement, it is to avoid or reduce cold cracking；Fatigue cracking is controlled within the scope of room temperature.For asphalt binder, adopt rotary thin film in drying oven test simulate asphalt mix and stir and pave in engineering aging；Adopt pressure aging vessel PAV simulation aging in pavement usage engineering of Colophonium.For gathering materials, when carrying out mixture gradation design, the concept of control point and restricted area is adopted to limit, it is preferable that test gradation design.For asphalt, after mixing, adopting short ageing to simulate asphalt and mixing and stirring pave in compacting process aging, bitumen mixture specimen adopts rotary compactor to prepare.In test specimen compacting process, the relation of record gyratory compaction number of times and height of specimen, thus being evaluated asphalt mixture volume characteristic.So-called Superpave mixture volume design is to carry out hot-mix asphalt mixture design according to the voidage of asphalt, void in mineral aggregate, Colophonium interstitial rate equal-volume characteristic, method mainly have designing material select, asphalt mix and stir, asphalt mixture volume analysis and compound checking, including bulk properties and water sensitivity.Asphalt mixture volume design process is mainly made up of four parts: 1. material selects；2. aggregate grading selects；3. asphalt optimum asphalt content is determined；4. the checking of asphalt is assessed, including bulk properties and water sensitivity.Material, aggregate grading, compound are all had a strict regulation by Suerpave asphalt mixture volume design method, and have formulated and strictly regulate requirement accordingly, including cementitious matter specification, aggregate specification, compound specification.
SBS modified asphalt concrete (SBS)
SBS modified pitch is on the basis of original matrix pitch, the SBS modifier of admixture 2.5%, 3.0%, 4.0%, modified Colophonium, and compared with protobitumen, its high temperature viscosity increases, and softening point raises.Under good design mixture proportion and execution conditions, durability and the high-temperature stability of bituminous paving significantly improve.
Modified pitch and Indexes of Evaluation Effect thereof
So-called modified pitch, also modified asphalt mixture is included, refer to " outer-penetrating agent (modifying agent) such as admixture rubber, resin, high molecular polymer, levigate rubber powder or other fillers; or take measures such as Colophonium mild oxidation processing makes the performance of Colophonium or asphalt be improved and the asphalt binder made ".Modifying agent refers to " the natural or artificial organic or inorganic material added in Colophonium or asphalt; melting, be dispersed in Colophonium improves or improve the material of bituminous pavement property (react with Colophonium or wrap in surface of aggregate) ".The quality of modified effect, is mainly evaluated by modified pitch index, and the evaluation index of modified pitch is: (1) Susceptibility Indexes: penetration index (needle penetration).(2) cryogenic property index: 5 DEG C of ductilities and equivalent brittle point.(3) r: 60 DEG C of viscosity, softening point and equivalent softening point.(4) heat stability (ageing-resistant) index: rotary thin film in drying oven is tested.(5) Colophonium viscoelastic effect index: elastic return.6. Colophonium and bond stress index of gathering materials: viscous toughness test.7. construction and safety index: flash-point, 135 DEG C of kinematic viscositys.8. index is isolated: softening point difference.
Heat pressing type bituminous concrete (HRA)
Heat pressing type asphalt concrete pavement (HotRolledAsphaltPavement, HRA), as the asphalt concrete pavement form of a kind of uniqueness, is widely used in Britain.
All there is following defect in above-mentioned existing asphalt:
Low temperature resistant poor with resistance to elevated temperatures, cryogenic conditions for the north is little, road surface is brittle crust easily, asphalt arches upward, losing surface evenness, be used for the southern area being chronically at exposure in sunshine, asphalt softens, it is likely to occur pavement asphalt variable thickness, causes the rough defect in road surface.
Summary of the invention
For high temperature resistant, the defect that resistance to low temperature is poor that overcome that above-mentioned various asphalt also exists, the invention provides the preparation technology of a kind of asphalt, this technique with the addition of basalt fibre in asphalt, strengthen the intensity of asphalt and high temperature resistant and low temperature resistant performance, can be chronically in exposure in sunshine, can be used for again in ice and snow weather, scope of application light, long service life.
A kind of preparation technology of asphalt, it is characterised in that: comprise the following steps that:
The first step: produce basalt fibre
Continuous basalt fiber is chopped into basalt fibre chopped fiber, fiber is coated (silane) wetting agent,
Second step: produce damaged tire granule
The rubber of waste tire is cut into graininess,
3rd step: produce rubble
With jaw crusher or kibbler roll, the mixture of basalt stone, granite or two kinds of rocks is broken into graininess,
4th step: heated asphalt
Colophonium heating and melting is become emulsus,
5th step: produce breeze
With jaw crusher or kibbler roll, ore reduction is become graininess,
6th step: mixing
In agitator, above-mentioned substance is mixed according to following parts by weight:
Colophonium: 25 ~ 55 parts
Rubble: 2 ~ 8 parts
Damaged tire granule: 12 ~ 18 parts
Basalt fibre: 22 ~ 38 parts
Breeze: 2 ~ 8 parts.
The granularity of described rubble is 3mm ~ 12mm, and damaged tire grain graininess is 1mm ~ 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.5mm ~ 1.2mm.
Granularity refers to the size of granule, and the granularity diameter of usual spherical particles represents, the granularity length of side of cubic granules represents.To irregular mineral grain, a certain sphere diameter equivalent diameter as this granule that can will have identical behavior with mineral grain.
Described rubble is the mixture of basalt stone, granite or two kinds of rocks.
Described damaged tire granule is make with waste tire.
Basalt fibre chopped fiber is the product by continuous basalt fiber precursor chopped.Fiber scribbles (silane) wetting agent.
Continuous basalt fiber is after basalt building stones melt at 1450 DEG C～1500 DEG C, by the continuous fiber of platinum-rhodium alloy bushing high speed pulling.Being similar to glass fibre, its performance is between high intensity S glass fibre and alkali-free E glass fibre, and the color of pure natural basalt fibre is generally brown, and some is like golden.
The invention have the advantages that
1, the present invention includes the material of following parts by weight: Colophonium: 25 ~ 55 parts；Rubble: 2 ~ 8 parts；Damaged tire granule: 12 ~ 18 parts；Basalt fibre: 22 ~ 38 parts；Breeze: 2 ~ 8 parts.Asphalt adds basalt fibre, improve the intensity of asphalt, high temperature resistant and low temperature resistant performance, it is no matter the ice and snow weather in the north, or tanning by the sun of the south sun, all without the road surface that destruction is made by the present invention, surface evenness is good, without leaving rut, eliminates the potential safety hazard that rut brings.
2, the granularity of rubble of the present invention is 3mm ~ 12mm, and damaged tire grain graininess is 1mm ~ 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.5mm ~ 1.2mm.The asphalt pliability so made and intensity are attained by requirement, and the surface evenness made can be protected, and also allow for workman's construction.
Detailed description of the invention
Embodiment 1
A kind of asphalt, it is characterised in that: include Colophonium, rubble, damaged tire granule, basalt fibre and breeze, in parts by weight:
Colophonium: 25 ~ 55 parts
Rubble: 2 ~ 8 parts
Damaged tire granule: 12 ~ 18 parts
Basalt fibre: 22 ~ 38 parts
Breeze: 2 ~ 8 parts.
The granularity of described rubble is 3mm ~ 12mm, and damaged tire grain graininess is 1mm ~ 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.5mm ~ 1.2mm.
Granularity refers to the size of granule, and the granularity diameter of usual spherical particles represents, the granularity length of side of cubic granules represents.To irregular mineral grain, a certain sphere diameter equivalent diameter as this granule that can will have identical behavior with mineral grain.
Described rubble is the mixture of basalt stone, granite or two kinds of rocks.
Described damaged tire granule waste tire is made.
Basalt fibre chopped fiber is the product by continuous basalt fiber precursor chopped.Fiber scribbles (silane) wetting agent.
Continuous basalt fiber is after basalt building stones melt at 1450 DEG C～1500 DEG C, by the continuous fiber of platinum-rhodium alloy bushing high speed pulling.Being similar to glass fibre, its performance is between high intensity S glass fibre and alkali-free E glass fibre, and the color of pure natural basalt fibre is generally brown, and some is like golden.
The technique preparing this asphalt:
The first step: produce basalt fibre
Continuous basalt fiber is chopped into basalt fibre chopped fiber, fiber is coated (silane) wetting agent,
Second step: produce damaged tire granule
The damaged tire of waste tire is cut into graininess, and grain graininess is 1mm ~ 3mm,
3rd step: produce rubble
With jaw crusher or kibbler roll, the mixture of basalt stone, granite or two kinds of rocks is broken into the granule that granularity is 3mm ~ 12mm,
4th step: heated asphalt
Colophonium heating and melting is become emulsus,
5th step: produce breeze
The granule becoming granularity to be 0.5mm ore reduction with jaw crusher or kibbler roll,
6th step: mixing
In agitator, above-mentioned substance is proportionally mixed.
The invention have the advantages that
1, the present invention includes Colophonium, rubble, damaged tire granule, basalt fibre and breeze, in parts by weight: Colophonium: 25 ~ 55 parts；Rubble: 2 ~ 8 parts；Damaged tire granule: 12 ~ 18 parts；Basalt fibre: 22 ~ 38 parts；Breeze: 2 ~ 8 parts.Asphalt adds basalt fibre, improve the intensity of asphalt, high temperature resistant and low temperature resistant performance, it is no matter the ice and snow weather in the north, or tanning by the sun of the south sun, all without the road surface that destruction is made by the present invention, surface evenness is good, without leaving rut, eliminates the potential safety hazard that rut brings.
3, the granularity of rubble of the present invention is 3mm ~ 12mm, and damaged tire grain graininess is 1mm ~ 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.5mm ~ 1.2mm.The asphalt pliability so made and intensity are attained by requirement, and the surface evenness made can be protected, and also allow for workman's construction.
Detailed description of the invention
Embodiment 1
A kind of asphalt, it is characterised in that: include Colophonium, rubble, damaged tire granule, basalt fibre and breeze, in parts by weight:
Colophonium: 25 parts
Rubble: 3 parts
Damaged tire granule: 12 parts
Basalt fibre: 22 parts
Breeze: 2 parts.
The granularity of described rubble is 3mm, and damaged tire grain graininess is 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.5mm.
Granularity refers to the size of granule, and the granularity diameter of usual spherical particles represents, the granularity length of side of cubic granules represents.To irregular mineral grain, a certain sphere diameter equivalent diameter as this granule that can will have identical behavior with mineral grain.
Described rubble is the mixture of basalt stone, granite or two kinds of rocks.
Described damaged tire granule waste tire is made.
Basalt fibre chopped fiber is the product by continuous basalt fiber precursor chopped.Fiber scribbles (silane) wetting agent.
Continuous basalt fiber is after basalt building stones melt at 1450 DEG C～1500 DEG C, by the continuous fiber of platinum-rhodium alloy bushing high speed pulling.Being similar to glass fibre, its performance is between high intensity S glass fibre and alkali-free E glass fibre, and the color of pure natural basalt fibre is generally brown, and some is like golden.
Present invention also offers the preparation technology of this asphalt:
The first step: produce basalt fibre
Continuous basalt fiber is chopped into basalt fibre chopped fiber, fiber is coated (silane) wetting agent,
Second step: produce damaged tire granule
The damaged tire of waste tire is cut into graininess, and grain graininess is 3mm,
3rd step: produce rubble
With jaw crusher or kibbler roll, the mixture of basalt stone, granite or two kinds of rocks is broken into the granule that granularity is 3mm,
4th step: heated asphalt
Colophonium heating and melting is become emulsus,
5th step: produce breeze
The granule becoming granularity to be 0.5mm ore reduction with jaw crusher or kibbler roll,
6th step: mixing
In agitator, above-mentioned substance is proportionally mixed.
Embodiment 2
A kind of asphalt, it is characterised in that: include Colophonium, rubble, damaged tire granule, basalt fibre and breeze, in parts by weight:
Colophonium: 25 parts
Rubble: 8 parts
Damaged tire granule: 12 parts
Basalt fibre: 22 parts
Breeze: 3 parts.
The granularity of described rubble is 8mm, and damaged tire grain graininess is 2mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.8mm.
Granularity refers to the size of granule, and the granularity diameter of usual spherical particles represents, the granularity length of side of cubic granules represents.To irregular mineral grain, a certain sphere diameter equivalent diameter as this granule that can will have identical behavior with mineral grain.
Described rubble is the mixture of basalt stone, granite or two kinds of rocks.
Described damaged tire granule waste tire is made.
Basalt fibre chopped fiber is the product by continuous basalt fiber precursor chopped.Fiber scribbles (silane) wetting agent.
Continuous basalt fiber is after basalt building stones melt at 1450 DEG C～1500 DEG C, by the continuous fiber of platinum-rhodium alloy bushing high speed pulling.Being similar to glass fibre, its performance is between high intensity S glass fibre and alkali-free E glass fibre, and the color of pure natural basalt fibre is generally brown, and some is like golden.
Present invention also offers the preparation technology of this asphalt:
The first step: produce basalt fibre
Continuous basalt fiber is chopped into basalt fibre chopped fiber, fiber is coated (silane) wetting agent,
Second step: produce damaged tire granule
The damaged tire of waste tire is cut into graininess, and grain graininess is 2mm,
3rd step: produce rubble
With jaw crusher or kibbler roll, the mixture of basalt stone, granite or two kinds of rocks is broken into the granule that granularity is 8mm,
4th step: heated asphalt
5th step: produce breeze
The granule becoming granularity to be 0.8mm ore reduction with jaw crusher or kibbler roll,
6th step: mixing
In agitator, above-mentioned substance is proportionally mixed.
Embodiment 3
A kind of asphalt, it is characterised in that: include Colophonium, rubble, damaged tire granule, basalt fibre and breeze, in parts by weight:
Colophonium: 25 parts
Rubble: 7 parts
Damaged tire granule: 16 parts
Basalt fibre: 38 parts
Breeze: 8 parts.
The granularity of described rubble is 12mm, and damaged tire grain graininess is 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 1.2mm.
Granularity refers to the size of granule, and the granularity diameter of usual spherical particles represents, the granularity length of side of cubic granules represents.To irregular mineral grain, a certain sphere diameter equivalent diameter as this granule that can will have identical behavior with mineral grain.
Described rubble is the mixture of basalt stone, granite or two kinds of rocks.
Described damaged tire granule waste tire is made.
Basalt fibre chopped fiber is the product by continuous basalt fiber precursor chopped.Fiber scribbles (silane) wetting agent.
Continuous basalt fiber is after basalt building stones melt at 1450 DEG C～1500 DEG C, by the continuous fiber of platinum-rhodium alloy bushing high speed pulling.Being similar to glass fibre, its performance is between high intensity S glass fibre and alkali-free E glass fibre, and the color of pure natural basalt fibre is generally brown, and some is like golden.
Present invention also offers the preparation technology of this asphalt:
The first step: produce basalt fibre
Continuous basalt fiber is chopped into basalt fibre chopped fiber, fiber is coated (silane) wetting agent,
Second step: produce damaged tire granule
The damaged tire of waste tire is cut into graininess, and grain graininess is 3mm,
3rd step: produce rubble
With jaw crusher or kibbler roll, the mixture of basalt stone, granite or two kinds of rocks is broken into the granule that granularity is 12mm,
4th step: heated asphalt
Colophonium heating and melting is become emulsus,
5th step: produce breeze
The granule becoming granularity to be 1.2mm ore reduction with jaw crusher or kibbler roll,
6th step: mixing
In agitator, above-mentioned substance is proportionally mixed.
Claims (4)
1. the preparation technology of an asphalt, it is characterised in that: comprise the following steps that:
The first step: produce basalt fibre
Continuous basalt fiber is chopped into basalt fibre chopped fiber, fiber is coated (silane) wetting agent,
Second step: produce damaged tire granule
The rubber of waste tire is cut into graininess,
3rd step: produce rubble
With jaw crusher or kibbler roll, the mixture of basalt stone, granite or two kinds of rocks is broken into graininess,
4th step: heated asphalt
Colophonium heating and melting is become emulsus,
5th step: produce breeze
With jaw crusher or kibbler roll, ore reduction is become graininess,
6th step: mixing
In agitator, above-mentioned substance is mixed according to following weight fraction:
Colophonium: 25 parts
Rubble: 7 parts
Damaged tire granule: 16 parts
Basalt fibre: 38 parts
Breeze: 8 parts.
2. a kind of asphalt according to claim 1, it is characterised in that: the granularity of described rubble is 3mm ~ 12mm, and described basalt fibre is short basalt fiber, and damaged tire grain graininess is 1mm ~ 3mm, and the granularity of described breeze is 0.5mm ~ 1.2mm.
3. a kind of asphalt according to claim 1 and 2, it is characterised in that: described rubble is the mixture of basalt stone, granite or two kinds of rocks.
4. a kind of asphalt according to claim 1 and 2, it is characterised in that: described damaged tire granule is make with waste tire.
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| CN201610253534.4A CN105776960A (en) | 2016-04-22 | 2016-04-22 | Preparation process for asphalt mixture |
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| CN201610253534.4A CN105776960A (en) | 2016-04-22 | 2016-04-22 | Preparation process for asphalt mixture |
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| CN108947333A (en) * | 2018-08-13 | 2018-12-07 | 袁帅 | A kind of asphalt pavement material and preparation method thereof |
| CN112960938A (en) * | 2021-02-06 | 2021-06-15 | 广东建安市政工程有限公司 | Wear-resistant asphalt concrete pavement and construction method thereof |
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| RU2541975C1 (en) * | 2014-03-05 | 2015-02-20 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" | Crushed-stone-mastic asphalt-concrete mix |
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| CN101219870A (en) * | 2007-12-29 | 2008-07-16 | 哈尔滨工业大学 | Rubber particle sheet pavement material and method for paving rubber particle sheet pavement |
| CN101767959A (en) * | 2010-01-11 | 2010-07-07 | 山东高速建设材料有限公司 | Protective plate of waterproof material and preparation method thereof |
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| CN112960938A (en) * | 2021-02-06 | 2021-06-15 | 广东建安市政工程有限公司 | Wear-resistant asphalt concrete pavement and construction method thereof |
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Application publication date: 20160720 |