CN108975769A - The Modified Bitumen Pavement and its method for paving of a kind of long-life intersection bituminous pavement - Google Patents

The Modified Bitumen Pavement and its method for paving of a kind of long-life intersection bituminous pavement Download PDF

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Publication number
CN108975769A
CN108975769A CN201810836875.3A CN201810836875A CN108975769A CN 108975769 A CN108975769 A CN 108975769A CN 201810836875 A CN201810836875 A CN 201810836875A CN 108975769 A CN108975769 A CN 108975769A
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China
Prior art keywords
pavement
intersection
life
long
asphalt mixture
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CN201810836875.3A
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Inventor
邵招娣
成相飞
嵇李梅
杨德荣
王寅
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Nanjing Pujiang Engineering Testing Co Ltd
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Nanjing Pujiang Engineering Testing Co Ltd
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Priority to CN201810836875.3A priority Critical patent/CN108975769A/en
Publication of CN108975769A publication Critical patent/CN108975769A/en
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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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E01C7/182—Aggregate or filler materials, except those according to E01C7/26
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
    • E01C7/262—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with fibrous material, e.g. asbestos; with animal or vegetal admixtures, e.g. leather, cork
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
    • E01C7/265—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with rubber or synthetic resin, e.g. with rubber aggregate, with synthetic resin binder
    • 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

Abstract

The present invention relates to the Modified Bitumen Pavement and its method for paving of a kind of long-life intersection bituminous pavement, including sub-surface and modified asphalt mixture surface layer, the sub-surface by rubber asphalt, fiber, fiber stabilizer, gather materials, filler and adjuvantComposition；The modified asphalt mixture surface layer is by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite roasting product and adjuvant

Description

The Modified Bitumen Pavement and its method for paving of a kind of long-life intersection bituminous pavement
Technical field
The present invention relates to technical field of road engineering, and in particular to a kind of modified pitch of long-life intersection bituminous pavement Road surface and its method for paving.
Background technique
With the development of Chinese national economy, car ownership is skyrocketed through, in the growing volume of traffic, environmental factor Comprehensive function under, especially near intersection, road surface by vehicle frequently braking, starting, turn to the effects of so that road Intersection pavement bears biggish shearing force, easily leads to road surface structare layer unstability, to generate passage disease, not only serious shadow The service life and service quality on road surface are rung, while also bringing heavy maintenance to bear to highway maintenance department.
Currently, arterial highway bituminous pavement mainly uses Double-layer asphalt surface layer structure form, with highway surface layer 4+6+8 Three-decker compare, thinner thickness, bituminous pavement is easy to appear the diseases such as track, crack, the especially position in intersection, The passage disease that 2-3cm is occurred as soon as after being open to traffic 1 to two years is commonplace, and conventional maintenance plan is difficult to meet intersection harshness Requirement, there was only 2-3 usually using the service life, maintenance is frequent, causes greatly to interfere to vehicle pass-through, not only cause The waste of fund also brings undesirable social influence, therefore how to promote the maintenance effect of intersection passage disease, extends and uses The problem of service life is urgent need to resolve in current research.
Show that surface layer contributes passage disease to arterial highway up and down according to existing result of study, cutting optimal Contribution is bigger, is the primary layer position for occurring elapsing, therefore improves the high-temperature behavior of cutting optimal mixture, to promotion pavement structure Anti- passage performance plays an important role.In addition, correlative study both at home and abroad shows can have by improving asphalt modulus Effect improves the ability of its resistance to deformation at high operating temperatures, to enhance the high-temperature behavior of asphalt, and identical There is better bearing capacity under thickness.
To extend the service life of intersection bituminous pavement, improving anti-passage performance, rely on Pukou area's main line public Road construction project under load action on the basis of the mechanical analysis of intersection, selects composite modification technology, high-modulus technology, fibre The dimension enhancing emerging asphalt technology of innovation, carries out the anti-passage asphalt mixture design in intersection and performance evaluation, and anti-passage is handed over Prong Pavement Structure Combination design and construction technical study, on-site test and service performance after work are observed, and are passed through to its society Ji benefit is analyzed, and the long-life anti-complete key technology of passage intersection asphalt pavement conserving is ultimately formed.This project is opened The maintenance effect for promoting intersection bituminous pavement passage disease is opened up, saves the maintenance cost in life cycle management, further Promote application scale of the High Modulus Asphalt Mixture in arterial highway, there is very important realistic meaning.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of modifications of long-life intersection bituminous pavement Bituminous pavement and its method for paving enhance the high-temperature behavior of asphalt, have preferably carrying energy under identical thickness Power extends service life.
The purpose of the present invention is achieved through the following technical solutions:
A kind of Modified Bitumen Pavement of long-life intersection bituminous pavement, including sub-surface and modified asphalt mixture face Layer, the sub-surface by rubber asphalt, fiber, fiber stabilizer, gather materials, filler and adjuvant I form；
The modified asphalt mixture surface layer is roasted by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite Burning product and adjuvant II composition.
Further, the adjuvant I is antitack agent, plasticizer and antioxidant according to 1:(0.8-1.2): (0.8-1.2) Weight ratio be mixed with to obtain.
Further, described to gather materials by coarse aggregate and fine aggregate according to 100:(10-15) weight ratio be mixed with to obtain.
Further, the filler is the limestone powder of 500 mesh or more；The fiber stabilizer is the polyester of 2-3mm Fiber.
Further, the modified asphalt mixture surface layer consists of the following parts by weight:
It is further preferred that the modified asphalt mixture surface layer consists of the following parts by weight:
Further, the matrix pitch is No. 70 pitches；The Styrene Content in Coplymer is 38-42wt%； The diatomite roasting product is the diatomite roasting product of 1000 mesh or more.
Further, the adjuvant II is promotor, crosslinking agent, filling oil, plasticizer and antioxidant according to 1:(1.5- 1.8): (1.5-1.8): (0.8-1.2): the weight ratio of (0.8-1.2) is mixed with to obtain.
The method for paving of the Modified Bitumen Pavement of above-mentioned long-life intersection bituminous pavement, includes the following steps:
S1 prepares sub-surface: by rubber asphalt, fiber, fiber stabilizer and adjuvant I according to 100:(10-20): (5- 10): the weight ratio mixing swelling 50-80min of (3-5), spread is in adjacent cement sheeting after shearing 40-50min uniformly by colloid On, spread quantity 2-3kg/m2, synchronous spread fiber, spread quantity 100-120g/m2, the hot rubble of spread reaches its coverage rate 80% or more, 1-2 times is rolled using rubber-tyred roller to get sub-surface；
S2 prepares modified asphalt mixture surface layer: by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite Roasting product and adjuvant II are added according to weight to be uniformly mixed in high-speed mixing equipment, then is squeezed by screw extruder Out, pelletizing, extrusion temperature are controlled at 140-160 DEG C, are transported after cooling to road scene, spreading machine is used to carry out road surface booth Paving, after steel roller frequency low-amplitude vibroroller cmpacting 2-3 times, reuses pneumatic-tired rollers and rolls 1-2 times, finally uses steel Roller is quiet to grind 1-2 times to get modified asphalt mixture surface layer.
The beneficial effects of the present invention are: the decrease of void fraction of the raw material of modified asphalt mixture surface layer is as low as 4% hereinafter, having Good waterproof effect；And dynamic modulus is more than 14000MPa at 15 DEG C, 10Hz, dynamic stability index reach 8000 times/ Mm or more has apparent advantage in terms of modulus, waterproof performance and high-temperature behavior.It include base in modified asphalt mixture surface layer Matter pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite roasting product and adjuvant II, improve the high-temperature behavior of mixture, The scope of application is wider, there is whole promotion to the performance requirement of the asphalt of design, can preferably adapt to intersection drip The service life of Modified Bitumen Pavement is increased to by requirement of the green mixture to high performance asphalt from current 2-3 5-8 or even 8 year or more.
Specific embodiment
Technical solution of the present invention is described in further detail combined with specific embodiments below, but protection scope of the present invention is not It is confined to as described below.
Embodiment 1
A kind of Modified Bitumen Pavement of long-life intersection bituminous pavement, including sub-surface and modified asphalt mixture face Layer, the sub-surface by rubber asphalt, fiber, fiber stabilizer, gather materials, filler and adjuvant I form；
The modified asphalt mixture surface layer is roasted by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite Burning product and adjuvant II composition.
Specifically, the adjuvant I is the weight ratio mixing system of antitack agent, plasticizer and antioxidant according to 1:0.8:0.8 It is standby to obtain.
Specifically, it is described gather materials be mixed with to obtain according to the weight ratio of 10:1 by coarse aggregate and fine aggregate.
Specifically, the filler is the limestone powder of 500 mesh or more；The polyester that the fiber stabilizer is 2-3mm is fine Dimension.
Specifically, the modified asphalt mixture surface layer consists of the following parts by weight:
Specifically, the matrix pitch is No. 70 pitches；The Styrene Content in Coplymer is 38wt%；The silicon Diatomaceous earth roasting product is the diatomite roasting product of 1000 mesh or more.
Specifically, the adjuvant II is promotor, crosslinking agent, filling oil, plasticizer and antioxidant according to 1:1.5: The weight ratio of 1.5:0.8:0.8 is mixed with to obtain.
The method for paving of the Modified Bitumen Pavement of above-mentioned long-life intersection bituminous pavement, includes the following steps:
S1 prepares sub-surface: by rubber asphalt, fiber, fiber stabilizer and adjuvant I according to the weight of 100:10:5:3 It is swollen 50min than mixing, spread is on adjacent cement sheeting after shearing 40min uniformly by colloid, spread quantity 2kg/m2, synchronous Spread fiber, spread quantity 100g/m2, the hot rubble of spread makes its coverage rate reach 80% or more, rolls 2 using rubber-tyred roller It is secondary to get sub-surface；
S2 prepares modified asphalt mixture surface layer: by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite Roasting product and adjuvant II are added according to weight to be uniformly mixed in high-speed mixing equipment, then is squeezed by screw extruder Out, pelletizing, extrusion temperature are controlled at 140 DEG C, are transported after cooling to road scene, are carried out pavement spread using spreading machine, make After steel roller frequency low-amplitude vibroroller cmpacting 2 times, reuses pneumatic-tired rollers and roll 1 time, finally use steel roller It is quiet to grind 1 time to get modified asphalt mixture surface layer.
The voidage of the raw material of modified asphalt mixture surface layer is lower than 4% in embodiment 1, the dynamic analog at 15 DEG C, 10Hz For amount more than 14000MPa, dynamic stability index reaches 8000 times/mm or more, service life >=5 year of Modified Bitumen Pavement.
Embodiment 2
A kind of Modified Bitumen Pavement of long-life intersection bituminous pavement, including sub-surface and modified asphalt mixture face Layer, the sub-surface by rubber asphalt, fiber, fiber stabilizer, gather materials, filler and adjuvant I form；
The modified asphalt mixture surface layer is roasted by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite Burning product and adjuvant II composition.
Specifically, the adjuvant I is the weight ratio mixing system of antitack agent, plasticizer and antioxidant according to 1:1.2:1.2 It is standby to obtain.
Specifically, it is described gather materials be mixed with to obtain according to the weight ratio of 10:1.5 by coarse aggregate and fine aggregate.
Specifically, the filler is the limestone powder of 500 mesh or more；The polyester that the fiber stabilizer is 2-3mm is fine Dimension.
Specifically, the modified asphalt mixture surface layer consists of the following parts by weight:
Specifically, the matrix pitch is No. 70 pitches；The Styrene Content in Coplymer is 42wt%；The silicon Diatomaceous earth roasting product is the diatomite roasting product of 1000 mesh or more.
Specifically, the adjuvant II is promotor, crosslinking agent, filling oil, plasticizer and antioxidant according to 1:1.8: The weight ratio of 1.8:1.2:1.2 is mixed with to obtain.
The method for paving of the Modified Bitumen Pavement of above-mentioned long-life intersection bituminous pavement, includes the following steps:
S1 prepares sub-surface: by rubber asphalt, fiber, fiber stabilizer and adjuvant I according to the weight of 100:20:10:5 It is swollen 80min than mixing, spread is on adjacent cement sheeting after shearing 50min uniformly by colloid, spread quantity 3kg/m2, synchronous Spread fiber, spread quantity 120g/m2, the hot rubble of spread makes its coverage rate reach 80% or more, rolls 1 using rubber-tyred roller It is secondary to get sub-surface；
S2 prepares modified asphalt mixture surface layer: by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite Roasting product and adjuvant II are added according to weight to be uniformly mixed in high-speed mixing equipment, then is squeezed by screw extruder Out, pelletizing, extrusion temperature are controlled at 160 DEG C, are transported after cooling to road scene, are carried out pavement spread using spreading machine, make After steel roller frequency low-amplitude vibroroller cmpacting 3 times, reuses pneumatic-tired rollers and roll 2 times, finally use steel roller It is quiet to grind 2 times to get modified asphalt mixture surface layer.
The voidage of the raw material of modified asphalt mixture surface layer is lower than 4% in embodiment 2, the dynamic analog at 15 DEG C, 10Hz For amount more than 14000MPa, dynamic stability index reaches 8000 times/mm or more, service life >=5 year of Modified Bitumen Pavement.
Embodiment 3
A kind of Modified Bitumen Pavement of long-life intersection bituminous pavement, including sub-surface and modified asphalt mixture face Layer, the sub-surface by rubber asphalt, fiber, fiber stabilizer, gather materials, filler and adjuvant I form；
The modified asphalt mixture surface layer is roasted by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite Burning product and adjuvant II composition.
Specifically, the adjuvant I is that antitack agent, plasticizer and antioxidant are mixed with according to the weight ratio of 1:1:1 It arrives.
Specifically, it is described gather materials be mixed with to obtain according to the weight ratio of 10:1.2 by coarse aggregate and fine aggregate.
Specifically, the filler is the limestone powder of 500 mesh or more；The polyester that the fiber stabilizer is 2-3mm is fine Dimension.
Specifically, the modified asphalt mixture surface layer consists of the following parts by weight:
Specifically, the matrix pitch is No. 70 pitches；The Styrene Content in Coplymer is 42wt%；The silicon Diatomaceous earth roasting product is the diatomite roasting product of 1000 mesh or more.
Specifically, the adjuvant II is promotor, crosslinking agent, filling oil, plasticizer and antioxidant according to 1:1.6: The weight ratio of 1.6:1:1 is mixed with to obtain.
The method for paving of the Modified Bitumen Pavement of above-mentioned long-life intersection bituminous pavement, includes the following steps:
S1 prepares sub-surface: by rubber asphalt, fiber, fiber stabilizer and adjuvant I according to the weight of 100:15:8:4 It is swollen 60min than mixing, spread is on adjacent cement sheeting after shearing 45min uniformly by colloid, spread quantity 2.5kg/m2, together Walk spread fiber, spread quantity 110g/m2, the hot rubble of spread made its coverage rate reach 80% or more, ground using rubber-tyred roller Pressure 2 times to get sub-surface；
S2 prepares modified asphalt mixture surface layer: by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite Roasting product and adjuvant II are added according to weight to be uniformly mixed in high-speed mixing equipment, then is squeezed by screw extruder Out, pelletizing, extrusion temperature are controlled at 150 DEG C, are transported after cooling to road scene, are carried out pavement spread using spreading machine, make After steel roller frequency low-amplitude vibroroller cmpacting 2 times, reuses pneumatic-tired rollers and roll 1 time, finally use steel roller It is quiet to grind 2 times to get modified asphalt mixture surface layer.
The voidage of the raw material of modified asphalt mixture surface layer is lower than 4% in embodiment 3, the dynamic analog at 15 DEG C, 10Hz For amount more than 14000MPa, dynamic stability index reaches 8000 times/mm or more, service life >=5 year of Modified Bitumen Pavement.
Embodiment 4
A kind of Modified Bitumen Pavement of long-life intersection bituminous pavement, including sub-surface and modified asphalt mixture face Layer, the sub-surface by rubber asphalt, fiber, fiber stabilizer, gather materials, filler and adjuvant I form；
The modified asphalt mixture surface layer is roasted by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite Burning product and adjuvant II composition.
Specifically, the adjuvant I is the weight ratio mixing system of antitack agent, plasticizer and antioxidant according to 1:1.1:0.9 It is standby to obtain.
Specifically, it is described gather materials be mixed with to obtain according to the weight ratio of 10:1.3 by coarse aggregate and fine aggregate.
Specifically, the filler is the limestone powder of 500 mesh or more；The polyester that the fiber stabilizer is 2-3mm is fine Dimension.
Specifically, the modified asphalt mixture surface layer consists of the following parts by weight:
Specifically, the matrix pitch is No. 70 pitches；The Styrene Content in Coplymer is 40wt%；The silicon Diatomaceous earth roasting product is the diatomite roasting product of 1000 mesh or more.
Specifically, the adjuvant II is promotor, crosslinking agent, filling oil, plasticizer and antioxidant according to 1:1.6: The weight ratio of 1.7:0.8:1.2 is mixed with to obtain.
The method for paving of the Modified Bitumen Pavement of above-mentioned long-life intersection bituminous pavement, includes the following steps:
S1 prepares sub-surface: by rubber asphalt, fiber, fiber stabilizer and adjuvant I according to the weight of 100:20:10:4 It is swollen 70min than mixing, spread is on adjacent cement sheeting after shearing 45min uniformly by colloid, spread quantity 2.5kg/m2, together Walk spread fiber, spread quantity 110g/m2, the hot rubble of spread made its coverage rate reach 80% or more, ground using rubber-tyred roller Pressure 2 times to get sub-surface；
S2 prepares modified asphalt mixture surface layer: by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite Roasting product and adjuvant II are added according to weight to be uniformly mixed in high-speed mixing equipment, then is squeezed by screw extruder Out, pelletizing, extrusion temperature are controlled at 160 DEG C, are transported after cooling to road scene, are carried out pavement spread using spreading machine, make After steel roller frequency low-amplitude vibroroller cmpacting 3 times, reuses pneumatic-tired rollers and roll 2 times, finally use steel roller It is quiet to grind 1 time to get modified asphalt mixture surface layer.
The voidage of the raw material of modified asphalt mixture surface layer is lower than 4% in embodiment 4, the dynamic analog at 15 DEG C, 10Hz For amount more than 14000MPa, dynamic stability index reaches 8000 times/mm or more, service life >=5 year of Modified Bitumen Pavement.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention It is interior.

Claims (9)

1. a kind of Modified Bitumen Pavement of long-life intersection bituminous pavement, including sub-surface and modified asphalt mixture face Layer, which is characterized in that the sub-surface by rubber asphalt, fiber, fiber stabilizer, gather materials, filler and adjuvant I form；
The modified asphalt mixture surface layer is by matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite roasting product It is formed with adjuvant II.
2. a kind of Modified Bitumen Pavement of long-life intersection bituminous pavement according to claim 1, which is characterized in that institute Stating adjuvant I is antitack agent, plasticizer and antioxidant according to 1:(0.8-1.2): the weight ratio of (0.8-1.2) is mixed with It arrives.
3. a kind of Modified Bitumen Pavement of long-life intersection bituminous pavement according to claim 1, which is characterized in that institute State and gather materials by coarse aggregate and fine aggregate according to 100:(10-15) weight ratio be mixed with to obtain.
4. a kind of Modified Bitumen Pavement of long-life intersection bituminous pavement according to claim 1, which is characterized in that institute State the limestone powder that filler is 500 mesh or more；The fiber stabilizer is the polyester fiber of 2-3mm.
5. a kind of Modified Bitumen Pavement of long-life intersection bituminous pavement according to claim 1, which is characterized in that institute Modified asphalt mixture surface layer is stated to consist of the following parts by weight:
6. a kind of Modified Bitumen Pavement of long-life intersection bituminous pavement according to claim 5, which is characterized in that institute Modified asphalt mixture surface layer is stated to consist of the following parts by weight:
7. a kind of Modified Bitumen Pavement of long-life intersection bituminous pavement according to claim 5 or 6, feature exist In the matrix pitch is No. 70 pitches；The Styrene Content in Coplymer is 38-42wt%；The diatomite roasting Product are the diatomite roasting product of 1000 mesh or more.
8. a kind of Modified Bitumen Pavement of long-life intersection bituminous pavement according to claim 5 or 6, feature exist In the adjuvant II is promotor, crosslinking agent, filling oil, plasticizer and antioxidant according to 1:(1.5-1.8): (1.5- 1.8): (0.8-1.2): the weight ratio of (0.8-1.2) is mixed with to obtain.
9. a kind of side of mating formation of the Modified Bitumen Pavement of the described in any item long-life intersection bituminous pavements of claim 1-8 Method, which comprises the steps of:
S1 prepares sub-surface: by rubber asphalt, fiber, fiber stabilizer and adjuvant I according to 100:(10-20): (5-10): The weight ratio mixing swelling 50-80min of (3-5), spread is spilt on adjacent cement sheeting after shearing 40-50min uniformly by colloid Cloth amount is 2-3kg/m2, synchronous spread fiber, spread quantity 100-120g/m2, the hot rubble of spread make its coverage rate reach 80% with On, 1-2 times is rolled using rubber-tyred roller to get sub-surface；
S2 prepares modified asphalt mixture surface layer: matrix pitch, butadiene-styrene rubber, Petropols, polyester glass fibre, diatomite are roasted Product and adjuvant II are added according to weight to be uniformly mixed in high-speed mixing equipment, then squeezed out by screw extruder, Pelletizing, extrusion temperature are controlled at 140-160 DEG C, are transported after cooling to road scene, are carried out pavement spread using spreading machine, make It after steel roller frequency low-amplitude vibroroller cmpacting 2-3 times, reuses pneumatic-tired rollers and rolls 1-2 times, finally use steel wheel pressure Road machine is quiet to grind 1-2 times to get modified asphalt mixture surface layer.
CN201810836875.3A 2018-07-26 2018-07-26 The Modified Bitumen Pavement and its method for paving of a kind of long-life intersection bituminous pavement Pending CN108975769A (en)

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CN206736657U (en) * 2017-04-20 2017-12-12 南京恒菲交通科技有限公司 A kind of cracking resistance rubber asphalt composite seal coat

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Application publication date: 20181211