CN105801006B - Asphalt for heavy traffic road and preparation method thereof - Google Patents
Asphalt for heavy traffic road and preparation method thereof Download PDFInfo
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- CN105801006B CN105801006B CN201610127800.9A CN201610127800A CN105801006B CN 105801006 B CN105801006 B CN 105801006B CN 201610127800 A CN201610127800 A CN 201610127800A CN 105801006 B CN105801006 B CN 105801006B
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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
- 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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Abstract
The invention discloses a kind of asphalt for heavy traffic road, include the raw material of following parts by weight：50~100 parts of pitch, 200~350 parts of miberal powder, gather materials 50~100 parts, 5~10 parts of inorfil, 10~20 parts of ultra-high molecular weight polyethylene, 20~40 parts of rubber powder, 10~20 parts of diatomite.The Stability of Asphalt Concrete Pavement of the application is high, and needle penetration is significant lower, belongs to harder asphalt material, and its dynamic viscosity is also lower than plain asphalt.As can be seen here, asphalt of the invention has more preferable application property；And there is bigger viscous toughness and toughness, show bigger mechanical strength；And elastic recovery properties are good, good high-temperature stability is shown.
Description
Technical field
The invention belongs to field of road construction, and in particular to for the asphalt of heavy traffic road and its preparation side
Method.
Background technology
Following phenomenon be present in heavy traffic road：Vehicle overload, heavy traffic caused road heavy duty, in several years of road occupation
Occur as soon as the situation of pavement damage.
With the development of national economy and highway transportation cause, the proportion of the medium and heavy goods stock of haulage vehicle is continuous
Increase, total mounted mass and axle heavy amount of automobile improves constantly, more and more large-scale, and update speed is quickly.Single shaft surpasses
10t is crossed, twin shaft has turned into the main body of communications and transportation more than 18t, heavy-duty vehicle of the twin shaft more than 22t.It is additionally, since road quality classification
Raising and juice driving, overload of vehicle, overload transport turn into very universal phenomenon, and current bituminous paving should
How to change that just to adapt to new highway communication situation be a urgent problem during current highway in China is built.And China
Compare, the design and use life-span of Asphalt Pavement Abroad is increasingly longer.Dripped after complete thick formula asphalt concrete pavement and high-strength thick
There is Permanence Pavement or Long Life Pavement again after blue or green road surface.
Europe proposes Perpetual Pavements Structural at first, practice have shown that this structure is within 40 years design periods, without
Structural maintenance, road maintenance expense is reduced, reduce road traffic delay.U.S.'s Long Life Asphalt Pavement is long in Europe
It is improved on the basis of on life-span bituminous paving, design life is more than 50 years, the thicker bitumen layer flexible road of use
Face, reducing traditional asphalt, bottom is ftractureed and avoids structural rut layer by layer, due to the damage on this road surface be only limitted to pavement top (25~
100mm), regularly surface milling, repairing pavement with the covering therefore are only needed so that bituminous paving does not need big knot within service life
Structure is rebuild.
Now with the reduction of cement admixture road surface proportion, bituminous paving has had overwhelming superiority.Pitch mixes
Material road surface has the advantages that seamless, profile pattern be good, driving slides that steady, comfortableness is strong, it is small that Vehicular vibration is influenceed, and
And mechanization of building operation degree is high, progress is fast, quality is good, maintenance is simple, therefore, asphaltic road-mix surface course is increasingly taken seriously,
Asphalt is used to building highway, deck paving and runway more and more widely.
There is the problem of service life is short in existing bituminous paving, it is serious to be mainly reflected in the abrasion condition on road surface, anti-car
Rut ability, bituminous paving abrasion will have a strong impact on the service ability of pavement structure, not only directly influence the flatness on road surface
And travel safety, and because asphalt thickness is thinned, weaken the bulk strength of surface layer and pavement structure, it will further
Other diseases are induced, influence the use quality and service life of bituminous paving.
At present, in order to solve the problems, such as to exist, following several measures mainly solve：
From bituminous paving raw material and design angle, one side emphasis from high-quality selection of gathering materials, there is functional modification
Pitch use is improved, but this undoubtedly adds cost；On the other hand, traditional Mixture Design Method is adjusted,
For example coarse grading is adjusted to improve abrasion resistance, but the water resistant damage performance that this can be to bituminous paving has been destroyed.
Angle is improved from pavement structure, large grain diameter water permeability asphalt concrete structure, high-modulus asphalt concrete occurs
Deng a series of new pavement structure and combinations thereof system, to it is wear-resistant play the role of it is certain, but its application but by region and
The limitation of environment.
From road surface additive angle, occur miscellaneous different shape, the different mechanisms of action, different uses both at home and abroad
The additive of volume, different using effects.These additive types are various, serve certain wear-resistant, Rut resistance effect, still
Still the problem of wear-resistant and Rut resistance effect is not very good be present.
The content of the invention
The problem of for presently, there are, the present invention provide a kind of asphalt for heavy traffic road, can be effective
Raising road surface antiwear property and rutting resistance, improve service life of road.
The present invention also provides a kind of preparation method of the asphalt for heavy traffic road, obtained asphalt
With higher abrasion resistance and rutting resistance.
In order to solve the above-mentioned technical problem, the present invention provides following technical scheme：
A kind of asphalt for heavy traffic road, include the raw material of following parts by weight：50~100 parts of pitch, ore deposit
200~350 parts of powder, gather materials 50~100 parts, 5~10 parts of inorfil, 10~20 parts of ultra-high molecular weight polyethylene, rubber powder 20~
40 parts, 10~20 parts of diatomite.
Wherein, the technical indicator of the pitch is as follows：
(1) needle penetration that 100 grams of load-carrying was sunk in 5 seconds in lubricating grease sample of the insulation at 25 DEG C is 2~4mm；
Penetration index >=-0.4；
(2) kinematic viscosity≤2.8Pas at 135 DEG C；Dynamic viscosity >=4500Pas at 60 DEG C；
(3) toughness >=5Nm is glued；Toughness >=2.5Nm；Flash-point >=230 DEG C；Solubility >=99%；Softening point >=60 DEG C；
(4) during storage stability isolation test, softening point difference≤2.5 DEG C after 48h are stored；
(5) elasticity at 25 DEG C recovers >=70%；
(6) dynamic shearing >=1000kPa at 35 DEG C, dynamic shearing >=20kPa at 60 DEG C；
(7) heating-up temperature is in 163 DEG C of rotating thin film heat run, and the mass change of residue is -1.0 after heating 5h
~1.0%, penetration ratio >=65% of the residue at 25 DEG C.
Preferably, the inorfil is basalt fibre or carbon fiber；And a diameter of the 0.8 of the inorfil~
1.2mm, length are 50~80mm.
Preferably, the rubber powder is tyre rubber powder；The tyre rubber powder be junked tire crush and remove steel wire with
Powder after fiber, powder size are 20~70 mesh.
Wherein, it is described to gather materials including coarse aggregate and fine aggregate, it is preferable that the weight ratio of the coarse aggregate and fine aggregate is 1:
2~4.Wherein, gather materials including rubble, crushing gravel, graded gravel and slag etc..
Wherein, the asphalt for heavy traffic road, in addition to 2~4 parts of phosphorus-containing matters.Preferably, institute
It is phosphite ester or methylene trihydrocarbyl phosphine to state phosphorus-containing matter.
The main function of phosphorus-containing matter significantly improves softening point, viscosity, needle penetration and the ageing-resistant ability of pitch, class
The mild oxidation of pitch is similar to, but not influences the brittle point of pitch.The addition of phosphorus-containing matter particularly phosphite ester, makes modification
The high-temperature storage stability of asphalt system, resistance to permanent deformation, such ability improve, reason be phosphorus-containing matter promote asphalt component by
Collosol structure changes to gel structure, and asphalt content is bigger, average molecular mass is bigger, is more easily formed homogeneous body
System.It is however noted that after phosphorus content excess, can cause to produce g., jelly-like phenomenon.Therefore, phosphorus-containing matter addition palpus
It is restricted, if the addition of phosphorus-containing matter is less than 2 parts by weight, asphalt component can not be promoted from collosol structure to gel structure
Transformation；If the addition of phosphorus-containing matter is more than 4 parts by weight, the meeting for easily causing emulsified asphalt produces g., jelly-like phenomenon, causes
Certain waste.
The invention also discloses the preparation method of the above-mentioned asphalt for heavy traffic road, comprise the following steps：
(1) pitch is put into mixer first after being heated to 130 DEG C~150 DEG C and adds rubber powder, mixer continues to heat
To 165 DEG C~175 DEG C and continue 50~60min of stirring, then swelling 60min is stood at 170 DEG C, obtain rubber asphalt；
(2) diatomite is poured slowly into the rubber asphalt obtained by step (1), is then stirred with machine mixer,
Continue 10~20 minutes, that is, obtain silicon modified rubber pitch；(diatomite belongs to physical dispersion in pitch, and its loose structure will
Pitch, which firmly adsorbs to be formed in its surface and hole, stablizes unified entirety, it is meant that the letter of diatomite modified asphalt technics comparing
It is single.The asphalt of formation in the case of high temperature load and Moisture Damage, diatomite with its excellent high-temperature stability and
Corrosion resistance can bear to destroy as stress particle, so as to improve the high-temperature stability of bituminous paving and water stability.And I
State's diatomite rich reserves, cheap, suitable popularization)；
(3) miberal powder is put into baking oven and is heated to 140 DEG C~180 DEG C, constant temperature 2.5~6 hours；It will gather materials and be put into other one
160 DEG C~200 DEG C are heated in individual baking oven, constant temperature 3~5 hours；
(4) miberal powder obtained by silicon modified rubber pitch made from step (2) and step (3) and gathering materials is mixed, then proceeded to
Inorfil and ultra-high molecular weight polyethylene (if being added with phosphorus-containing matter, adding in this step) are added, is heated to 160
DEG C~200 DEG C, mix 5~10 minutes, produce asphalt.
The beneficial effects of the invention are as follows：
(1) asphalt of the invention, pavement performance is excellent, and wear-resisting, waterproof, anti-rut behavior are excellent, has great
Social effect and industry value.
(2) by adding sizing material in pitch, hence it is evident that improve the high temperature resistant property of modified bitumen product and antifatigue
Performance；Si modification processing is carried out to it again on this basis, so than directly carrying out the asphalt road after Si modification processing to pitch
High temperature resistant and water resistant the evil performance in face are more excellent, and also than the high temperature resistance for the modified bitumen product that sizing material processing is only carried out to pitch
Performance and anti-fatigue performance are more excellent.
(3) by adding phosphorus-containing matter, significantly improve softening point, viscosity, needle penetration and the ageing-resistant ability of pitch,
Under conditions of high temperature, pitch change is small, non-fusible, improves its rutting resistance.
(4) various composition of the present invention obtains big carry by rational proportioning, the various performances of obtained asphalt
Height, the wearability and Rut resistance of road are improved particularly, have improved the service life of road, reduce the generation of road accident.
Embodiment
Experimental method used in following embodiments is conventional method unless otherwise specified.
Material used, reagent etc., unless otherwise specified, are commercially obtained in following embodiments.
The present invention provides these embodiments and is to be able to be best understood from the present invention, and can be by the model of the present invention
Enclose and be completely communicated to those skilled in the art.It should be noted that in specification in the whole text and claim mentioned in
"comprising" or " comprising " be an open language, therefore " include but be not limited to " should be construed to.Specification subsequent descriptions are real
The better embodiment of the present invention is applied, so the description is for the purpose of the rule of specification, is not limited to this hair
Bright scope.Protection scope of the present invention is worked as to be defined depending on appended claims institute defender.
Embodiment 1
A kind of asphalt for heavy traffic road, include the raw material of following parts by weight：50 parts of pitch, miberal powder 200
Part, gather materials 50 parts, 5 parts of inorfil, 10 parts of ultra-high molecular weight polyethylene, 20 parts of rubber powder, 10 parts of diatomite.
Wherein, used bitumen technology index is as follows：
(1) needle penetration that 100 grams of load-carrying was sunk in 5 seconds in lubricating grease sample of the insulation at 25 DEG C is 2~4mm；
Penetration index >=-0.4；
(2) kinematic viscosity≤2.8Pas at 135 DEG C；Dynamic viscosity >=4500Pas at 60 DEG C；
(3) toughness >=5Nm is glued；Toughness >=2.5Nm；Flash-point >=230 DEG C；Solubility >=99%；Softening point >=60 DEG C；
(4) during storage stability isolation test, softening point difference≤2.5 DEG C after 48h are stored；
(5) elasticity at 25 DEG C recovers >=70%；
(6) dynamic shearing >=1000kPa at 35 DEG C, dynamic shearing >=20kPa at 60 DEG C；
(7) heating-up temperature is in 163 DEG C of rotating thin film heat run, and the mass change of residue is -1.0 after heating 5h
~1.0%, penetration ratio >=65% of the residue at 25 DEG C.
The inorfil is basalt fibre；And a diameter of 0.8mm of the inorfil, length 80mm.
The rubber powder is tyre rubber powder；The tyre rubber powder be junked tire crush and remove steel wire and fiber after
Powder, powder size are 20 mesh.
Wherein, it is described to gather materials including coarse aggregate and fine aggregate, it is preferable that the weight ratio of the coarse aggregate and fine aggregate is 1:
2。
The preparation method of the above-mentioned asphalt for heavy traffic road, comprises the following steps：
(1) pitch is put into mixer first and is heated to adding rubber powder after 130 DEG C, mixer continues to be heated to 165 DEG C
And continue to stir 60min, then swelling 60min is stood at 170 DEG C, obtain rubber asphalt；
(2) diatomite is poured slowly into the rubber asphalt obtained by step (1), is then stirred with machine mixer,
Continue 10 minutes, that is, obtain silicon modified rubber pitch；
(3) miberal powder is put into baking oven and is heated to 140 DEG C, constant temperature 6 hours；It will gather materials to be put into another baking oven and heat
To 160 DEG C, constant temperature 5 hours；
(4) miberal powder obtained by silicon modified rubber pitch made from step (2) and step (3) and gathering materials is mixed, then proceeded to
Inorfil and ultra-high molecular weight polyethylene are added, is heated to 160 DEG C, mixes 10 minutes, produces asphalt.
Embodiment 2
A kind of asphalt for heavy traffic road, include the raw material of following parts by weight：60 parts of pitch, miberal powder 230
Part, gather materials 60 parts, 6 parts of inorfil, 12 parts of ultra-high molecular weight polyethylene, 25 parts of rubber powder, 12 parts of diatomite.
Wherein, the technical indicator of the pitch is as follows：
(1) needle penetration that 100 grams of load-carrying was sunk in 5 seconds in lubricating grease sample of the insulation at 25 DEG C is 2~4mm；
Penetration index >=-0.4；
(2) kinematic viscosity≤2.8Pas at 135 DEG C；Dynamic viscosity >=4500Pas at 60 DEG C；
(3) toughness >=5Nm is glued；Toughness >=2.5Nm；Flash-point >=230 DEG C；Solubility >=99%；Softening point >=60 DEG C；
(4) during storage stability isolation test, softening point difference≤2.5 DEG C after 48h are stored；
(5) elasticity at 25 DEG C recovers >=70%；
(6) dynamic shearing >=1000kPa at 35 DEG C, dynamic shearing >=20kPa at 60 DEG C；
(7) heating-up temperature is in 163 DEG C of rotating thin film heat run, and the mass change of residue is -1.0 after heating 5h
~1.0%, penetration ratio >=65% of the residue at 25 DEG C.
The inorfil is carbon fiber；And a diameter of 0.8mm of the inorfil, length 80mm.
The rubber powder is tyre rubber powder；The tyre rubber powder be junked tire crush and remove steel wire and fiber after
Powder, powder size are 30 mesh.
Wherein, it is described to gather materials including coarse aggregate and fine aggregate, it is preferable that the weight ratio of the coarse aggregate and fine aggregate is 1:
2。
The preparation method of the above-mentioned asphalt for heavy traffic road, comprises the following steps：
(1) pitch is put into mixer first and is heated to adding rubber powder after 130 DEG C, mixer continues to be heated to 175 DEG C
And continue to stir 50min, then swelling 60min is stood at 170 DEG C, obtain rubber asphalt；
(2) diatomite is poured slowly into the rubber asphalt obtained by step (1), is then stirred with machine mixer,
Continue 15 minutes, that is, obtain silicon modified rubber pitch；
(3) miberal powder is put into baking oven and is heated to 140 DEG C, constant temperature 2.5 hours；It will gather materials to be put into another baking oven and add
Hot to 160 DEG C, constant temperature 3 hours；
(4) miberal powder obtained by silicon modified rubber pitch made from step (2) and step (3) and gathering materials is mixed, then proceeded to
Inorfil and ultra-high molecular weight polyethylene are added, is heated to 180 DEG C, mixes 8 minutes, produces asphalt.
Embodiment 3
A kind of asphalt for heavy traffic road, include the raw material of following parts by weight：80 parts of pitch, miberal powder 250
Part, gather materials 80 parts, 8 parts of inorfil, 15 parts of ultra-high molecular weight polyethylene, 30 parts of rubber powder, 15 parts and 3 parts of diatomite it is phosphorous organic
Thing.
Wherein, the technical indicator of the pitch is as follows：
(1) needle penetration that 100 grams of load-carrying was sunk in 5 seconds in lubricating grease sample of the insulation at 25 DEG C is 2~4mm；
Penetration index >=-0.4；
(2) kinematic viscosity≤2.8Pas at 135 DEG C；Dynamic viscosity >=4500Pas at 60 DEG C；
(3) toughness >=5Nm is glued；Toughness >=2.5Nm；Flash-point >=230 DEG C；Solubility >=99%；Softening point >=60 DEG C；
(4) during storage stability isolation test, softening point difference≤2.5 DEG C after 48h are stored；
(5) elasticity at 25 DEG C recovers >=70%；
(6) dynamic shearing >=1000kPa at 35 DEG C, dynamic shearing >=20kPa at 60 DEG C；
(7) heating-up temperature is in 163 DEG C of rotating thin film heat run, and the mass change of residue is -1.0 after heating 5h
~1.0%, penetration ratio >=65% of the residue at 25 DEG C.
The inorfil is basalt fibre；And a diameter of 1.2mm of the inorfil, length 50mm.
The rubber powder is tyre rubber powder；The tyre rubber powder be junked tire crush and remove steel wire and fiber after
Powder, powder size are 70 mesh.
Wherein, it is described gather materials including weight ratio be 1:2 coarse aggregate and fine aggregate.
Wherein, the phosphorus-containing matter is phosphite ester.
The invention also discloses the preparation method of the above-mentioned asphalt for heavy traffic road, comprise the following steps：
(1) pitch is put into mixer first and is heated to adding rubber powder after 140 DEG C, mixer continues to be heated to 170 DEG C
And continue to stir 60min, then swelling 60min is stood at 170 DEG C, obtain rubber asphalt；
(2) diatomite is poured slowly into the rubber asphalt obtained by step (1), is then stirred with machine mixer,
Continue 10 minutes, that is, obtain silicon modified rubber pitch；
(3) miberal powder is put into baking oven and is heated to 160 DEG C, constant temperature 3 hours；It will gather materials to be put into another baking oven and heat
To 180 DEG C, constant temperature 4 hours；
(4) miberal powder obtained by silicon modified rubber pitch made from step (2) and step (3) and gathering materials is mixed, then proceeded to
Inorfil, ultra-high molecular weight polyethylene and phosphorus-containing matter are added, is heated to 180 DEG C, mixes 8 minutes, produces pitch
Compound.
Embodiment 4
A kind of asphalt for heavy traffic road, include the raw material of following parts by weight：100 parts of pitch, miberal powder 200
Part, gather materials 50 parts, 10 parts of inorfil, 20 parts of ultra-high molecular weight polyethylene, 40 parts of rubber powder, 20 parts and 4 parts of diatomite is phosphorous has
Machine thing.
Wherein, the technical indicator of the pitch is as follows：
(1) needle penetration that 100 grams of load-carrying was sunk in 5 seconds in lubricating grease sample of the insulation at 25 DEG C is 2~4mm；
Penetration index >=-0.4；
(2) kinematic viscosity≤2.8Pas at 135 DEG C；Dynamic viscosity >=4500Pas at 60 DEG C；
(3) toughness >=5Nm is glued；Toughness >=2.5Nm；Flash-point >=230 DEG C；Solubility >=99%；Softening point >=60 DEG C；
(4) during storage stability isolation test, softening point difference≤2.5 DEG C after 48h are stored；
(5) elasticity at 25 DEG C recovers >=70%；
(6) dynamic shearing >=1000kPa at 35 DEG C, dynamic shearing >=20kPa at 60 DEG C；
(7) heating-up temperature is in 163 DEG C of rotating thin film heat run, and the mass change of residue is -1.0 after heating 5h
~1.0%, penetration ratio >=65% of the residue at 25 DEG C.
Preferably, the inorfil is basalt fibre or carbon fiber；And the inorfil is a diameter of
1.0mm, length 70mm.
Preferably, the rubber powder is tyre rubber powder；The tyre rubber powder be junked tire crush and remove steel wire with
Powder after fiber, powder size are 50 mesh.
Wherein, described to gather materials including coarse aggregate and fine aggregate, the weight ratio of the coarse aggregate and fine aggregate is 1:4.
The phosphorus-containing matter is methylene trihydrocarbyl phosphine.
The preparation method of the above-mentioned asphalt for heavy traffic road, comprises the following steps：
(1) pitch is put into mixer first and is heated to adding rubber powder after 150 DEG C, mixer continues to be heated to 175 DEG C
And continue to stir 55min, then swelling 60min is stood at 170 DEG C, obtain rubber asphalt；
(2) diatomite is poured slowly into the rubber asphalt obtained by step (1), is then stirred with machine mixer,
Continue 10 minutes, that is, obtain silicon modified rubber pitch；
(3) miberal powder is put into baking oven and is heated to 150 DEG C, constant temperature 6 hours；It will gather materials to be put into another baking oven and heat
To 170 DEG C, constant temperature 4 hours；
(4) miberal powder obtained by silicon modified rubber pitch made from step (2) and step (3) and gathering materials is mixed, then proceeded to
Inorfil, ultra-high molecular weight polyethylene and phosphorus-containing matter are added, is heated to 190 DEG C, mixes 10 minutes, produces pitch
Compound.
Embodiment 5
A kind of asphalt for heavy traffic road, include the raw material of following parts by weight：100 parts of pitch, miberal powder 350
Part, gather materials 100 parts, 10 parts of inorfil, 10 parts of ultra-high molecular weight polyethylene, 30 parts of rubber powder, 15 parts of diatomite.
Wherein, the technical indicator of the pitch is as follows：
(1) needle penetration that 100 grams of load-carrying was sunk in 5 seconds in lubricating grease sample of the insulation at 25 DEG C is 2~4mm；
Penetration index >=-0.4；
(2) kinematic viscosity≤2.8Pas at 135 DEG C；Dynamic viscosity >=4500Pas at 60 DEG C；
(3) toughness >=5Nm is glued；Toughness >=2.5Nm；Flash-point >=230 DEG C；Solubility >=99%；Softening point >=60 DEG C；
(4) during storage stability isolation test, softening point difference≤2.5 DEG C after 48h are stored；
(5) elasticity at 25 DEG C recovers >=70%；
(6) dynamic shearing >=1000kPa at 35 DEG C, dynamic shearing >=20kPa at 60 DEG C；
(7) heating-up temperature is in 163 DEG C of rotating thin film heat run, and the mass change of residue is -1.0 after heating 5h
~1.0%, penetration ratio >=65% of the residue at 25 DEG C.
Preferably, the inorfil is basalt fibre or carbon fiber；And the inorfil is a diameter of
1.2mm, length 50mm.
Preferably, the rubber powder is tyre rubber powder；The tyre rubber powder be junked tire crush and remove steel wire with
Powder after fiber, powder size are 40 mesh.
Wherein, it is described gather materials including weight ratio be 1:2 coarse aggregate and fine aggregate.
Wherein, the phosphorus-containing matter is phosphite ester.
The invention also discloses the preparation method of the above-mentioned asphalt for heavy traffic road, comprise the following steps：
(1) pitch is put into mixer first and is heated to adding rubber powder after 135 DEG C, mixer continues to be heated to 170 DEG C
And continue to stir 60min, then swelling 60min is stood at 170 DEG C, obtain rubber asphalt；
(2) diatomite is poured slowly into the rubber asphalt obtained by step (1), is then stirred with machine mixer,
Continue 20 minutes, that is, obtain silicon modified rubber pitch；
(3) miberal powder is put into baking oven and is heated to 180 DEG C, constant temperature 3 hours；It will gather materials to be put into another baking oven and heat
To 200 DEG C, constant temperature 3 hours；
(4) miberal powder obtained by silicon modified rubber pitch made from step (2) and step (3) and gathering materials is mixed, then proceeded to
Inorfil, ultra-high molecular weight polyethylene and phosphorus-containing matter are added, is heated to 200 DEG C, mixes 5 minutes, produces pitch
Compound.
The performance indications of asphalt to being prepared detect, and the results are shown in Table 1.
The performance indications of the asphalt of table 1
According to《Standard specification for construction and acceptance of highway asphalt pavement》JTG F40-2004 weigh to These parameters, it is seen that all
Index meets the requirements, and the Stability of Asphalt Concrete Pavement of the application is high, and needle penetration is significant lower, belongs to harder pitch material
Material, has higher abrasion resistance, and its viscosity is smaller, and particularly 60 DEG C of dynamic viscosity is also lower than plain asphalt.Thus may be used
See, asphalt of the invention has more preferable application property；And there is bigger viscous toughness and toughness, show bigger power
Intensity is learned, there is excellent anti-rut behavior；And elastic recovery properties are good, good high-temperature stability is shown.
Claims (9)
- A kind of 1. asphalt for heavy traffic road, it is characterised in that：Include the raw material of following parts by weight：Pitch 50~ 100 parts, 200~350 parts of miberal powder, gather materials 50~100 parts, 5~10 parts of inorfil, 10~20 parts of ultra-high molecular weight polyethylene, 20~40 parts of rubber powder, 10~20 parts of diatomite；The preparation method of the asphalt comprises the following steps：(1) pitch is put into mixer first after being heated to 130 DEG C~150 DEG C and adds rubber powder, mixer continues to be heated to 165 DEG C~175 DEG C and continue 50~60min of stirring, then swelling 60min is stood at 170 DEG C, obtain rubber asphalt；(2) diatomite is poured slowly into the rubber asphalt obtained by step (1), be then stirred with machine mixer, continued 10~20 minutes, that is, obtain silicon modified rubber pitch；(3) miberal powder is put into baking oven and is heated to 140 DEG C~180 DEG C, constant temperature 2.5~6 hours；It will gather materials and be put into another baking 160 DEG C~200 DEG C are heated in case, constant temperature 3~5 hours；(4) miberal powder obtained by silicon modified rubber pitch made from step (2) and step (3) and gathering materials is mixed, then proceedes to add Inorfil and ultra-high molecular weight polyethylene, 160 DEG C~200 DEG C are heated to, pitch mixing is produced after mixing 5~10 minutes Material.
- 2. the asphalt according to claim 1 for heavy traffic road, it is characterised in that：The technology of the pitch Index is as follows：(1) needle penetration that 100 grams of load-carrying was sunk in 5 seconds in lubricating grease sample of the insulation at 25 DEG C is 2~4mm；Pin enters Spend index >=-0.4；(2) kinematic viscosity≤2.8Pas at 135 DEG C；Dynamic viscosity >=4500Pas at 60 DEG C；(3) toughness >=5Nm is glued；Toughness >=2.5Nm；Flash-point >=230 DEG C；Solubility >=99%；Softening point >=60 DEG C；(4) during storage stability isolation test, softening point difference≤2.5 DEG C after 48h are stored；(5) elasticity at 25 DEG C recovers >=70%；(6) dynamic shearing >=1000kPa at 35 DEG C, dynamic shearing >=20kPa at 60 DEG C；(7) heating-up temperature be in 163 DEG C of rotating thin film heat run heat the mass change of residue after 5h for -1.0~ 1.0%, penetration ratio >=65% of the residue at 25 DEG C.
- 3. the asphalt according to claim 1 for heavy traffic road, it is characterised in that：The inorfil is Basalt fibre or carbon fiber.
- 4. the asphalt according to claim 1 for heavy traffic road, it is characterised in that：The inorfil A diameter of 0.8~1.2mm, length are 50~80mm.
- 5. the asphalt according to claim 1 for heavy traffic road, it is characterised in that：The rubber powder is tire Rubber powder；The tyre rubber powder be junked tire crush and remove steel wire and fiber after powder, powder size be 20~70 Mesh.
- 6. the asphalt according to claim 1 for heavy traffic road, it is characterised in that：It is described to gather materials including thick Gather materials and fine aggregate, the weight ratio of the coarse aggregate and fine aggregate is 1:2~4.
- 7. the asphalt according to claim 1 for heavy traffic road, it is characterised in that：Also contain including 2~4 parts Phosphorus organic matter.
- 8. the asphalt according to claim 7 for heavy traffic road, it is characterised in that：The phosphorus-containing matter For phosphite ester or methylene trihydrocarbyl phosphine.
- 9. it is used for the preparation method of the asphalt of heavy traffic road according to claim 7, it is characterised in that including such as Lower step：(1) pitch is put into mixer first after being heated to 130 DEG C~150 DEG C and adds rubber powder, mixer continues to be heated to 165 DEG C~175 DEG C and continue 50~60min of stirring, then swelling 60min is stood at 170 DEG C, obtain rubber asphalt；(2) diatomite is poured slowly into the rubber asphalt obtained by step (1), be then stirred with machine mixer, continued 10~20 minutes, that is, obtain silicon modified rubber pitch；(3) miberal powder is put into baking oven and is heated to 140 DEG C~180 DEG C, constant temperature 2.5~6 hours；It will gather materials and be put into another baking oven In be heated to 160 DEG C~200 DEG C, constant temperature 3~5 hours；(4) miberal powder obtained by silicon modified rubber pitch made from step (2) and step (3) and gathering materials is mixed, then proceedes to add Inorfil, ultra-high molecular weight polyethylene and phosphorus-containing matter, 160 DEG C~200 DEG C are heated to, after mixing 5~10 minutes Produce asphalt.
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| CN201610127800.9A CN105801006B (en) | 2016-03-07 | 2016-03-07 | Asphalt for heavy traffic road and preparation method thereof |
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| CN201610127800.9A CN105801006B (en) | 2016-03-07 | 2016-03-07 | Asphalt for heavy traffic road and preparation method thereof |
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| CN107445518B (en) * | 2017-07-24 | 2020-01-17 | 扬州大学 | Grading basalt fiber asphalt mixture with high fatigue resistance and preparation method thereof |
| CN108328933A (en) * | 2018-01-12 | 2018-07-27 | 杭州朗特建材有限公司 | A kind of high-performance environment-friendly modified pitch and preparation method thereof |
| CN110540381A (en) * | 2018-05-29 | 2019-12-06 | 江苏一诺路桥工程检测有限公司 | asphalt mixture preparation method based on asphalt cement |
| CN109575613A (en) * | 2018-10-31 | 2019-04-05 | 佛山市光烨环保科技有限公司 | A method of asphalt modifier is prepared using useless lubricating grease, gear oil and coal tar |
| CN110423452B (en) * | 2019-08-02 | 2021-03-26 | 长安大学 | High-strength durable rapid repair material for roads and preparation method thereof |
| CN110643187B (en) * | 2019-09-19 | 2021-05-07 | 三河市纳诺科斯机电产品制造有限公司 | Modified fly ash reinforced road asphalt and preparation method thereof |
| CN111689719A (en) * | 2020-06-19 | 2020-09-22 | 广东水电二局股份有限公司 | Basalt fiber reinforced asphalt concrete and preparation method thereof |
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