CN106758653A - Pin-connected panel shearing resistance bituminous paving and its method for paving - Google Patents
Pin-connected panel shearing resistance bituminous paving and its method for paving Download PDFInfo
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- CN106758653A CN106758653A CN201611144616.1A CN201611144616A CN106758653A CN 106758653 A CN106758653 A CN 106758653A CN 201611144616 A CN201611144616 A CN 201611144616A CN 106758653 A CN106758653 A CN 106758653A
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- asphalt
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- asphalts
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Classifications
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- 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
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
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- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
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- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The present invention relates to the structure and method of construction of bituminous paving, specifically a kind of pin-connected panel shearing resistance bituminous paving and its method for paving.Including the following structure sheafs from top to bottom laid successively：（3.5‑4.5）The wearing course of cm, is waste tyre rubber powder and SBS composite modified asphalt stone matrix asphalts SMA 13；Water-proof tack coat；（6‑10）The supporting course of cm, is modified emulsifying asphalt and cementitious composite grouting asphalt SFC 20.Bituminous paving bulk strength of the invention and pliability are good, fatigue life is long, cracking resistance good, construction and maintenance convenience, short construction period, construction pollution are small.
Description
Technical field
The present invention relates to the structure and method of construction of bituminous paving, specifically a kind of pin-connected panel shearing resistance bituminous paving and its paving
Dress method.
Background technology
Bituminous concrete is a kind of flexible material, under load duty and strong shear stress repeated action, bitumen layer at wheelmark
Thickness is gradually thinning, and rut occurs in road surface after permanent deformation accumulation, weakens the bulk strength of surface layer and pavement structure,
And easily induce other diseases.Especially city traffic lights crossroad, bus-stop, intersection and expressway tol lcollection
Stand, due to frequently by vehicle start, acceleration, deceleration, braking etc. vertically and horizontally load action under, bituminous paving easily occurs sternly
The wave of weight, embrace, detrusion or the vertical deformation disease such as rut.
At present, administer asphalt pavement rut disease it is general system-wide section using the mixture gradation dual-purpose softening point of improvement or
Viscosity matrix pitch or modified pitch higher.These schemes can improve the permanent deformation resistance on road surface, but for cutting by force
Stress again and again occur section or regional area, though effect has improvement, persistence is still unsatisfactory, rut disease into
It is influence China's bituminous paving travel safety and the persistent ailment of comfortableness.
In recent years, it was the local rut of improvement, the semi-flexible composite pavement with cement grout bituminous concrete as Typical Representative
This new structure is arisen at the historic moment.It refers to using open gradation large porosity matrix asphalt as parent, in its sky
A kind of road surface that cement mortar is composited is poured into gap.The road surface combines bituminous concrete and cement concrete is respective excellent
Point, with the flexibility higher than cement concrete pavement and higher than the rigidity of asphalt concrete pavement, to treatment pavement track disease
Effect is significant.However, this composite pavement is by two kinds of asphalt (flexible frame) and cement mortar (rigid filler material)
The material of different phase is constituted, after being acted on through frequent wheel shear stress, temperature contracting change and power, flexible frame and rigid filler
Material can be peeling-off, and the overall mechanical characteristic of composite construction, water stability and fatigue life can be greatly reduced；In addition, composite road
The flexibility in face depends on the strain that Asphalt mix for open-graded friction course is born, and coarse aggregate content is up in Asphalt mix for open-graded friction course
More than 90 percent, the maximum flexural-tensile strain of decision compound is low by the rubber cement content that fine aggregate and pitch are constituted, should in temperature
In the presence of power and sub-surface reflection disease, easily there is fatigue cracking in composite pavement；Further, this composite pavement is using existing
Field method construction, and the formation of strength of cement mortar needs health cycle and cumbersome health-preserving condition more long, causes road surface normal
It is open to traffic is obstructed and significantly postpone with the duration.
The content of the invention
The technical problems to be solved by the invention are to provide that a kind of bulk strength and pliability are good, fatigue life is long, cracking resistance
Performance is good, construction and maintenance convenience, short construction period, construction pollution small pin-connected panel shearing resistance bituminous paving and its method for paving.
Pin-connected panel shearing resistance bituminous paving of the invention includes the following structure sheafs from top to bottom laid successively：
The wearing course of (3.5-4.5) cm, is waste tyre rubber powder and SBS composite modified asphalt stone matrix asphalts SMA-
13；
Water-proof tack coat；
The supporting course of (6-10) cm, is modified emulsifying asphalt and cementitious composite grouting asphalt SFC-20.
Preferably, the waste tyre rubber powder and SBS composite modified asphalt stone matrix asphalt SMA-13 wearing courses
Mixed and stirred by following raw material by weight percentage and formed：Gather materials 83%~85%, miberal powder 9%~11%, waste tyre rubber powder
With SBS composite modified asphalts 5.8%~6.3%, various raw material quality percentages total 100%；The waste tyre rubber powder with
SBS composite modified asphalts technical indicator meets：Needle penetration (25 DEG C, 100g, 5s) be 50~70 (0.1mm), ductility (5cm/min,
5 DEG C) it is not less than 20cm, softening point is not less than 75 DEG C, and 60 DEG C of dynamic viscosities are not less than 40000Pa.s, and 160 DEG C of dynamic viscosities are
1.5~4 (Pa.s), elasticity recovers (25 DEG C) and is not less than 85%.
Preferably, the water-proof tack coat using type PCR modified emulsifying asphalts are split soon, evaporated residue content is not less than
55%, fountain height is 0.5m2-0.7Kg/m2。
Preferably, the modified emulsifying asphalt is by cement with cementitious composite grouting asphalt SFC-20 supporting courses
The skeleton space that modified emulsified asphalt mortar pours into the PAC-20 Asphalt mix for open-graded friction course that voidage is 22%~28% is constituted；
The PAC-20 Asphalt mix for open-graded friction course is mixed and stirred by following raw material by weight percentage and formed：Gather materials 94%~
96%, miberal powder 1%~3%, waste tyre rubber powder and SBS composite modified asphalts 2.9%~3.2%, various raw material quality percentages
Than adding up to 100；The waste tyre rubber powder meets with SBS composite modified asphalts technical indicator：Needle penetration (25 DEG C, 100g, 5s) is
50~70 (0.1mm), ductility (5cm/min, 5 DEG C) is not less than 20cm, and softening point is not less than 75 DEG C, and 60 DEG C of dynamic viscosities are not less than
40000Pa.s, 160 DEG C of dynamic viscosities are 1.5~4 (Pa.s), and elasticity recovers (25 DEG C) and is not less than 85%.
Preferably, the modified cement emulsified asphalt slurry mixed and stirred by following raw material by weight percentage and
Into：River sand 25%~30%, miberal powder 15%~20%, cement 20%~25%, modified emulsifying asphalt 25%~30%, mixing water
2%~10%, water reducer 0.2%~0.4%, various raw material quality percentages add up to 100%；The river sand maximum particle diameter
It is 0.6mm；The miberal powder is limestone mineral powder；The modified emulsifying asphalt splits solidifying type BCR modified emulsifying asphalts, evaporation soon for slow
Residuals content is not less than 60%；The mixing water is drinking water；The cement is PC42.5 composite Portland cements；It is described to subtract
Aqua is poly- hydroxy acid water reducer.
The batch production method for prefabricating of pin-connected panel shearing resistance asphalt pavement structural layer module of the invention, comprises the following steps：
(1) supporting course prefabricated mould is assembled, and supporting course prefabricated mould is by bed die, side form and assembled rectangular of end mould
Mould；
(2) pre-buried lifting part in the mould after the completion of assembly；
(3) with edible oil as interleaving agent, uniformly it is applied on bed die, side form and end mould；
(4) preparation of PAC-20 Asphalt mix for open-graded friction course, comprises the following steps：A, will warm up 185 DEG C~195 DEG C
Input after weighing of gathering materials is mixed and stirred in cylinder；B, the miberal powder after weighing is added in step a products therefroms, mixes and stirs 5s~10s；C, general
It is heated to being added in step b products therefroms after 165 DEG C~175 DEG C of waste tyre rubber powder is weighed with SBS composite modified asphalts, mixes
With 30s~45s, PAC-20 Asphalt mix for open-graded friction course is obtained；
(5) hot-mix asphalt mixture paver is used, the PAC-20 Asphalt mix for open-graded friction course that step (4) is obtained is equal
Even paves in the mould obtained by step (3), and the spreading speed is 2.0m/min~3.0m/min, mixture laying temperature
It is not less than 170 DEG C；
(6) pave and rolled using dual-steel wheel road roller and pneumatic-tired rollers immediately after after terminating；
(7) preparation of modified cement emulsified asphalt slurry, comprises the following steps：A, the river sand after weighing and miberal powder are put into
In mixer；B, the mixing water after weighing is added in step a products therefroms, stirs 60s；C, the water reducer after weighing is added
It is added in step b products therefroms, stirs 30s；D, load weighted modified emulsifying asphalt is added in step c products therefroms, stirred
90s is mixed, finished cement modified emulsified asphalt mortar is obtained；
(8) step (7) products therefrom leaning to one side the step of normal temperature is cooled to, the big space pitches of PAC-20 are mixed obtained by (5)
Close on material, it is artificial on one side to be disperseed by modified cement emulsified asphalt slurry using rubber road harrow or scraper, matrix pitch is filled naturally
The space of compound；The mortar for not penetrating into big space asphalt concrete pavement promotes mortar to fill space using plate compactor vibration；
(9) slurry of excess surface is cleared away after the completion of modified cement emulsified asphalt slurry is poured into；
(10) by step (9) be in the milk after the completion of structure sheaf at 25 DEG C ± 5 DEG C plastic covering membrane curing 7 days；
(11) side form of supporting course mould and end mould unification are increased into 4cm for being molded wearing course；
(12) type PCR modified emulsifying asphalts are split soon in the sprinkling of step (10) resulting structures layer surface, fountain height is 0.5kg/
m2~0.7kg/m2；
(13) SMA-13 waste tyre rubber powders and the preparation of the composite modified stone matrix asphalts of SBS, comprise the following steps：
A, will warm up 190 DEG C~200 DEG C gather materials weigh after during input mixes and stirs cylinder；B, the miberal powder after weighing is added to step a institutes
Obtain in product, mix and stir 5s~10s；C, the waste tyre rubber powder that will warm up 165 DEG C~170 DEG C and SBS composite modified asphalts are weighed
After be added in step b products therefroms, mix and stir 30s~45s, obtain SMA-13 stone matrix asphalt mixtures；
(14) hot-mix asphalt mixture paver, the SMA-13 stone matrix asphalts that step (13) is obtained is used to mix
Close material uniformly to pave in the mould of step (12), spreading speed is 2.0m/min~3.0m/min, mixture laying temperature
It is not less than 175 DEG C；
(15) pave and rolled using dual-steel wheel road roller immediately after after terminating；
(16) after step (15) resulting structures layer is cooled to normal temperature, all side forms and end mould are removed, that is, completes shearing resistance pitch
The batch production of road surface structare layer is prefabricated.
The live laying method of pin-connected panel shearing resistance asphalt pavement structural layer module of the invention, comprises the following steps：
(1) section lengths of measurement bicycle road pavement track disease, width and area, detect with the method for drill hole sampling
Average influence depth of the rut disease to former road surface structare layer；
(2) according to the measurement of step (1), testing result, milling length, width and the depth on former road surface are calculated, and is carried out
Milling is processed, and structural strengthening is carried out to the local disease below average influence depth；
(3) after detecting step (2) milling working face flatness, the standard deviation of maximal clearance cannot be greater than 1.2mm, for
The position that partly flat degree is unsatisfactory for requiring carries out leveling using finish-milling planer；
(4) to step (3) gained working face purge, sprayed after the completion of cleaning split soon type PCR modified emulsifying asphalts glue
Knot layer, fountain height is controlled in 0.7Kg/m2~0.9Kg/m2；
(5) according to the depth H of step (4) gained working face, the corresponding anti-shearing asphalt pavement structure of thickness is selected
Layer module；Width W according to working face determines the cutting width of anti-shearing asphalt pavement structural layer module；The cutting of individual module
Length is 2m；The Cutting Length of length and individual module according to working face, it is determined that the quantity of required module；
(6) according to step (5) selected parameter, cutting, the numbering of anti-shearing asphalt pavement structural layer module are carried out, so
Slow lifting afterwards, makes Prefabricated block depart from bed die；
(7) by step (6) gained modular transportation to job site, according to numbering lifting, successively closely, smooth be assembled in
In the scope of operation, the seam wherein between adjacent block is bonded using PCR modified emulsifying asphalts；Between Prefabricated block and former road surface
Longitudinal seam is using waste tyre rubber powder and the SBS composite modified asphalt cementation of fissures；Prefabricated block assembly wears away lifting part edge after terminating
Layer surface cutting is flat can be open to traffic.
The present invention compared with the existing technology, with advantages below and beneficial effect：
(1) use and taken with the modified cement emulsified asphalt slurry of Asphalt mix for open-graded friction course phase and similar thermal expansion coefficient
For cement mortar as grouting material, the adhesion strength between grouting material and Asphalt mix for open-graded friction course can be effectively improved, carried to the greatest extent
The water stability and globality of composite pavement high；It is flat by the viscous of modified cement emulsified asphalt slurry, bullet, strength, soft and rigidity
Weighing apparatus realizes " firm " of composite pavement, " soft " balance, improves fatigue life and the cracking resistance of composite pavement.
(2) the prefabricated shearing resistance asphalt pavement structural layer module of batch production, quality is more reliable, technique is more controllable；On-site consolidation method
Repairing rut disease can be greatly shortened the duration, and open to traffic is fast.
(3) the invention provides a kind of new approaches of hot-mix asphalt mixture cold-application construction, heat can be effectively improved and mixes hot paving
The pollution that asphalt is constructed to site environment, is particularly suited for the poor construction surface of the ventilation such as tunnel road surface, while protecting
Annual uninterrupted construction is capable of achieving on the premise of barrier pavement quality.
Specific embodiment
Embodiment 1
A certain bituminous paving, two-way 4 track, bicycle road 3.75m wide, former road surface structare layer is：The modified drip of upper layer 4cm
Modified asphalt concrete Sup-20, the friendship again that cutting optimal is 8cm of blue or green stone matrix asphalt SMA-13, middle surface layer for 6cm
Asphalt Sup-25.According to the statistics of the volume of traffic, its daily average motorbus and medium-sized or above various per track
The volume of traffic of lorry belongs to Heavy Traffic in 2300 (/ day * is per tracks), and pavement track disease is serious.Using three meters of rulers pair
The car in the section is removed depth, active width and length and is measured, and rutting depth is 0.8cm~2.0cm, and active width is
3.6m, length is 46m.Drill hole sampling has been carried out to former road surface, during rut disease is concentrated mainly on, upper layer, below Rotating fields
Completely there is not disease.
According to the condition and feature of the engineering, rut Disease Processing uses scheme of the present invention, is designed as follows：
First, shearing resistance asphalt pavement structural layer design
Wearing course:The waste tyre rubber powder of 4cm and SBS composite modified asphalt stone matrix asphalt SMA-13, compacting drip
The dynamic stability of blue or green compound strains (- 10 DEG C) and is not less than 3000 not less than 6000 times/mm, low temperature bend test maximal destruction
μ ε, residual stability are not less than 0.8mm not less than 80%, freeze-thaw split strength ratio not less than 80%, construction depth；In compound
Waste tyre rubber powder is 6.0%, remaining 94% all mineral aggregate with the mass percent of SBS composite modified asphalts.
Water-proof tack coat：Using type PCR modified emulsifying asphalts are split soon, fountain height is 0.5kg/m2~0.7kg/m2。
Supporting course：The modified emulsifying asphalt of 6cm and cementitious composite grouting asphalt SFC-20, the mixing of health 7 days
Material dynamic stability is steady not less than 3000 μ ε, Marshall not less than 10000 times/mm, (- 10 DEG C) of low temperature bend test maximal destruction strain
Fixed degree is not less than 8KN；The mass percent of waste tyre rubber powder and SBS composite modified asphalts in PAC-20 Asphalt mix for open-graded friction course
It is 2.9, remaining 97.1% all mineral aggregate；The mass percent of each component is in modified cement emulsified asphalt slurry：River sand
(27.81%), miberal powder (18.05%), modified emulsifying asphalt (26.7%), cement (22.7%), water reducer (0.23%), mix and stir
Water (4.51%).
2nd, design of material
1st, pitch
Waste tyre rubber powder and SBS composite modified asphalts technical requirements and testing result in the present embodiment of table 2
Type PCR modified emulsifying asphalts technical requirements and testing result are split in the present embodiment of watch 3 soon
It is slow in the present embodiment of watch 4 to split solidifying type BCR modified emulsifying asphalts technical requirements and testing result soon
2nd, mineral aggregate gradation
The mineral aggregate formate gradation composition result gathered materials in each asphalt structure sheaf of table 5 with miberal powder composition
3rd, cement
Composite Portland cement PC42.5 is used in modified cement emulsified asphalt slurry, technical indicator meets GB175-2007
Regulation.
4th, miberal powder
Miberal powder uses limestone mineral powder, technical indicator to meet《Standard specification for construction and acceptance of highway asphalt pavement》(JTGF40-
2004) require.
6th, river sand
0.6mm sieve apertures percent of pass is that 100%, 0.075mm sieve apertures percent of pass is 0.6% in river sand.
8th, water reducer
Using poly- hydroxy acid water reducer, technical indicator meets the regulation of GB8076.
3rd, pin-connected panel shearing resistance asphalt pavement structural layer module is prefabricated and scene is mated formation
1st, pin-connected panel shearing resistance asphalt pavement structural layer module is prefabricated
(1) selection of supporting course prefabricated mould and assembly
Supporting course prefabricated mould is by bed die, side form and the assembled rectangular mould of end mould, according in the present embodiment
The Site Detection data of pavement track disease, structure in solid reinforced concrete foundation is embedded in from thick 1.5cm high carbon steel sheets
Into bed die, width 4m, length 47m；Side form using 2cm thick high carbon steel sheet, per segment length 5m, 6cm high, between every section of side form and
Connected using fastening bolt between side form and bed die, side form sets the support member with bed die in 45° angle every 30cm；End mould is adopted
With the thick high-elastic steel plates of 2cm, 3.8m long is connected between end mould and side form, bed die using fastening bolt, and every 30cm set with
Bed die is in the support member of 45° angle.The supporting course prefabricated mould bottom surface internal diameter that assembly is completed is 46.96m long, width 3.8m, 6cm high.
(2) pre-buried lifting part in the mould after the completion of assembly, with the every 2m of bed die length direction as unit, each unit sets
A, b, c, d, e totally 5 lifting parts are put, wherein a and b is longitudinally arranged point-blank along mould, apart from side form 50cm；C is same with d
Sample is longitudinally arranged point-blank along mould, and it is parallel to be in line with 2 points of a, b, apart from another side form 50cm；While a, c
2 points are in line with cutting seam apart from 50cm, and 2 points of b, d is in line apart from end mould 50cm, and two straight line parallels；Lifting
Part e is arranged on the rectangular central point that a, b, c, d are constituted.
(3) with edible oil as interleaving agent, uniformly it is applied on bed die, side form and end mould, must not on pre-buried lifting part
Smear.
(4) preparation of PAC-20 Asphalt mix for open-graded friction course, comprises the following steps：A, the title that gathers materials that will warm up 185 DEG C
During input mixes and stirs cylinder after weight；B, the miberal powder after weighing is added in step a products therefroms, mixes and stirs 8s；C, will warm up 170 DEG C
Waste tyre rubber powder and SBS composite modified asphalts weigh after be added in step b products therefroms, mix and stir 40s, obtain PAC-20 big
Space asphalt.
(5) hot-mix asphalt mixture paver is used, the PAC-20 Asphalt mix for open-graded friction course that step (4) is obtained is equal
Even paves in the mould obtained by step (3), and spreading speed is 2.3m/min, 175 DEG C of mixture laying temperature.
(6) one side paved mixture, while carrying out first pressing using dual-steel wheel road roller and pneumatic-tired rollers, pressing again and whole
Pressure.158 DEG C of first pressing started temperature, is rolled 2 times using dual-steel wheel road roller；125 DEG C of started temperature is pressed again, and road is pressed using double steel wheels
Machine is rolled 3 times；56 DEG C of final pressure temperature, is rolled 1 time using pneumatic-tired rollers.
(7) preparation of modified cement emulsified asphalt slurry, comprises the following steps：A, the river sand after weighing and miberal powder are put into
In mixer；B, the mixing water after weighing is added in step a products therefroms, stirs 60s；C, the water reducer after weighing is added
It is added in step b products therefroms, stirs 30s；D, load weighted modified emulsifying asphalt is added in step c products therefroms, stirred
90s is mixed, finished cement modified emulsified asphalt mortar is obtained.
(8) step (7) products therefrom leaning to one side the step of normal temperature is cooled to, the big space pitches of PAC-20 are mixed obtained by (5)
Close on material, it is artificial on one side to be disperseed by modified cement emulsified asphalt slurry using rubber road harrow or scraper；Big space pitch is not penetrated into
The mortar of concrete road surface can promote mortar to fill space using plate compactor vibration, and plate compactor gait of march is 3m/min.
(9) slurry of excess surface is cleared away after the completion of modified cement emulsified asphalt slurry is poured at twice with bamboo besom, the
15 minutes after being once about in the milk, 1 hour after being about in the milk for the second time (after modified emulsifying asphalt demulsification), expose after cleaning slurry
Bituminous concrete.
(10) by step (9) be in the milk after the completion of structure sheaf at 25 DEG C ± 5 DEG C plastic covering membrane curing 7 days.
(11) side form of supporting course mould and end mould unification are increased into 4cm for being molded wearing course, every section of side form and side form
It is connected using fastening bolt between the mould of end, is connected using the vertical drilling bolt of interval 30cm between upper and lower side form and end mould
Connect, the Elevated section of side form and end mould is set every 30cm and bed die is in 30 ° of support member, and is uniformly applied on side form and end mould
Smear edible oil interleaving agent.
(12) type PCR modified emulsifying asphalts are split soon in the sprinkling of step (10) resulting structures layer surface, fountain height is 0.63kg/
m2。
(13) SMA-13 waste tyre rubber powders and the preparation of the composite modified stone matrix asphalts of SBS, comprise the following steps：
A, will warm up 195 DEG C gather materials weigh after during input mixes and stirs cylinder；B, the miberal powder after weighing is added to step a products therefroms
In, mix and stir 5s；C, the waste tyre rubber powder that will warm up 172 DEG C and SBS composite modified asphalts are added to step b gained and produce after weighing
In thing, 35s is mixed and stirred, obtain SMA-13 stone matrix asphalt mixtures.
(14) hot-mix asphalt mixture paver, the SMA-13 stone matrix asphalts that step (13) is obtained is used to mix
Close material uniformly to pave in the mould of step (12), spreading speed is 2.5m/min, mixture laying temperature is 178 DEG C.
(15) pave and first pressing, multiple pressure and final pressure are carried out using dual-steel wheel road roller immediately after after terminating.First pressing starts temperature
170 DEG C of degree, is rolled 2 times using dual-steel wheel road roller；155 DEG C of started temperature is pressed again, is rolled 4 times using dual-steel wheel road roller；Eventually
85 DEG C of end temp of pressure, is rolled 2 times using dual-steel wheel road roller.
(16) after step (15) resulting structures layer cooling 24h, to normal temperature, all side forms and end mould are removed, that is, completes shearing resistance
The batch production of asphalt pavement structural layer is prefabricated.
2nd, pin-connected panel shearing resistance asphalt pavement structural layer module is mated formation
(1) 3m rulers are used to measure the section lengths of bicycle road pavement track disease for 46m, width are 3.6m and area is
165.6m2, rut depth capacity is 2mm, detects rut disease to the average of former road surface structare layer using the method for drill hole sampling
Influence depth is 10cm.
(2) according to the measurement of step (1), testing result, calculate the milling length on former road surface for 46m, width be 3.6m and
Depth 10cm, and milling treatment is carried out, the structure sheaf below milling depth is complete, without carrying out local reinforcement.
(3) using the flatness of working face after 3m rulers detecting step (2) milling, the standard deviation of maximal clearance is 0.8mm,
Possesses the condition mated formation, without leveling.
(4) to step (3) gained working face purge, sprayed after the completion of cleaning split soon type PCR modified emulsifying asphalts glue
Knot layer, fountain height is 0.85Kg/m2。
(5) according to 2.0m long, width 3.6m size by health after anti-shearing asphalt pavement structural layer prefabricated section cut into
23 units, then slow lifting, make Prefabricated block depart from bed die.
(6) by step (5) gained, each unit module is numbered, and transport to job site is lifted, successively according to numbering
Closely, smooth to be assembled in operation, wherein the seam between adjacent block is bonded using PCR modified emulsifying asphalts；Prefabricated molds
Longitudinal seam between block and former road surface is using waste tyre rubber powder and the SBS composite modified asphalt cementation of fissures；Prefabricated block assembly terminates
Lifting part can be open to traffic along abrasion layer surface cutting is flat afterwards.
3rd, Engineering detection results
1st, the testing result of pin-connected panel shearing resistance asphalt pavement structural layer Prefabricated block
(1) wearing course:The waste tyre rubber powder of 4cm and SBS composite modified asphalt stone matrix asphalt SMA-13, compacting
The dynamic stability of asphalt is 8420 times/mm, (- 10 DEG C) of low temperature bend test maximal destruction strain is 3195 μ ε, residual
It is that 85.9%, construction depth is 1.1mm for 93.1%, freeze-thaw split strength ratio to stay stability.
(2) supporting course：The modified emulsifying asphalt of 6cm and cementitious composite are in the milk asphalt SFC-20, health 7 days it is mixed
Material dynamic stability is closed for 13821 times/mm, low temperature bend test maximal destruction strain (- 10 DEG C) for 3326 μ ε, Marshall stability are
18.7KN。
2. pin-connected panel shearing resistance asphalt pavement structural layer Site Detection result
After live pavement construction terminates, quality in site detection is carried out to engineering of mating formation, testing result is pavement seepage system
Number is for 24.5ml/min (it is required that being less than 50ml/min), surface evenness for 0.9mm (it is required that being less than 1.2mm), construction depth are
1.1mm (it is required that being not less than 0.8mm), coefficient of friction are 62BPN (it is required that being not less than 45BPN), are satisfied by design requirement.
Claims (7)
1. a kind of pin-connected panel shearing resistance bituminous paving, it is characterized in that：Including the following structure sheafs from top to bottom laid successively,
（3.5-4.5）The wearing course of cm, is waste tyre rubber powder and SBS composite modified asphalt stone matrix asphalts SMA-13；
Water-proof tack coat；
（6-10）The supporting course of cm, is modified emulsifying asphalt and cementitious composite grouting asphalt SFC-20.
2. pin-connected panel shearing resistance bituminous paving according to claim 1, it is characterized in that：The waste tyre rubber powder is combined with SBS
Modified asphalt horse's hoofs fat crushed stones compound SMA-13 wearing courses are mixed and stirred by following raw material by weight percentage and formed：Gather materials
83%~85%, miberal powder 9%~11%, waste tyre rubber powder and SBS composite modified asphalts 5.8%~6.3%, various raw material quality percentages
Than adding up to 100%；The waste tyre rubber powder meets with SBS composite modified asphalts technical indicator：Needle penetration（25 DEG C, 100g, 5s）For
50~70（0.1mm）, ductility（5cm/min, 5 DEG C）Not less than 20cm, softening point is not less than 75 DEG C, and 60 DEG C of dynamic viscosities are not less than
40000Pa.s, 160 DEG C of dynamic viscosities are 1.5~4（Pa.s）, elasticity recovery（25℃）Not less than 85%.
3. pin-connected panel shearing resistance bituminous paving according to claim 1, it is characterized in that：The water-proof tack coat is used and splits type soon
PCR modified emulsifying asphalts, evaporated residue content is not less than 55%, and fountain height is 0.5m2-0.7Kg/m2。
4. pin-connected panel shearing resistance bituminous paving according to claim 1, it is characterized in that：The modified emulsifying asphalt is answered with cement
It is that to pour into voidage by modified cement emulsified asphalt slurry be 22%~28% to close grouting asphalt SFC-20 supporting courses
The skeleton space of PAC-20 Asphalt mix for open-graded friction course is constituted；The PAC-20 Asphalt mix for open-graded friction course is by following by weight hundred
Divide to be mixed and stirred than the raw material of meter and form：Gather materials 94%~96%, miberal powder 1%~3%, waste tyre rubber powder and SBS composite modified asphalts
2.9%~3.2%, various raw material quality percentages total 100；The waste tyre rubber powder refers to SBS composite modified asphalt technologies
Mark meets：Needle penetration（25 DEG C, 100g, 5s）It is 50~70（0.1mm）, ductility（5cm/min, 5 DEG C）Not less than 20cm, softening point
Not less than 75 DEG C, 60 DEG C of dynamic viscosities are not less than 40000Pa.s, and 160 DEG C of dynamic viscosities are 1.5~4（Pa.s）, elasticity recovery
（25℃）Not less than 85%.
5. pin-connected panel shearing resistance bituminous paving according to claim 1, it is characterized in that：The modified cement emulsified asphalt slurry
Mixed and stirred by following raw material by weight percentage and formed：River sand 25%~30%, miberal powder 15%~20%, cement 20%~25%,
Modified emulsifying asphalt 25%~30%, mixing water 2%~10%, water reducer 0.2%~0.4%, various raw material quality percentages add up to
It is 100%；The river sand maximum particle diameter is 0.6mm；The miberal powder is limestone mineral powder；The modified emulsifying asphalt splits soon for slow
Solidifying type BCR modified emulsifying asphalts, evaporated residue content is not less than 60%；The mixing water is drinking water；The cement is
PC42.5 composite Portland cements；The water reducer is poly- hydroxy acid water reducer.
6. a kind of batch production method for prefabricating of the pin-connected panel shearing resistance asphalt pavement structural layer module based on claim 1-5, including
Following steps：
（1）Supporting course prefabricated mould is assembled, and supporting course prefabricated mould is by bed die, side form and the assembled cuboid mould of end mould
Tool；
（2）Pre-buried lifting part in mould after the completion of assembly；
（3）With edible oil as interleaving agent, uniformly it is applied on bed die, side form and end mould；
（4）The preparation of PAC-20 Asphalt mix for open-graded friction course, comprises the following steps：A, will warm up 185 DEG C~195 DEG C and gather materials
During input mixes and stirs cylinder after weighing；B, the miberal powder after weighing is added in step a products therefroms, mixes and stirs 5s~10s；C, will heating
It is added in step b products therefroms after being weighed to 165 DEG C~175 DEG C of waste tyre rubber powders and SBS composite modified asphalts, mixes and stirs
30s~45s, obtains PAC-20 Asphalt mix for open-graded friction course；
（5）Using hot-mix asphalt mixture paver, by step（4）The PAC-20 Asphalt mix for open-graded friction course for being obtained is uniform
Pave in step（3）In the mould of gained, the spreading speed is 2.0m/min~3.0m/min, and mixture laying temperature is not low
In 170 DEG C；
（6）Pave and rolled using dual-steel wheel road roller and pneumatic-tired rollers immediately after after terminating；
（7）The preparation of modified cement emulsified asphalt slurry, comprises the following steps：A, by the river sand after weighing and miberal powder input stirring
In machine；B, the mixing water after weighing is added in step a products therefroms, stirs 60s；C, the water reducer after weighing is added to
In step b products therefroms, 30s is stirred；D, load weighted modified emulsifying asphalt is added in step c products therefroms, stirred
90s, obtains finished cement modified emulsified asphalt mortar；
（8）By step（7）Products therefrom leans to one side the step of normal temperature is cooled to（5）Gained PAC-20 Asphalt mix for open-graded friction course
On, it is artificial on one side to be disperseed by modified cement emulsified asphalt slurry using rubber road harrow or scraper, the mixing of matrix pitch is filled naturally
The space of material；The mortar for not penetrating into big space asphalt concrete pavement promotes mortar to fill space using plate compactor vibration；
（9）Modified cement emulsified asphalt slurry clears away the slurry of excess surface after the completion of pouring into；
（10）By step（9）Structure sheaf after the completion of grouting plastic covering membrane curing 7 days at 25 DEG C ± 5 DEG C；
（11）The side form of supporting course mould and end mould unification are increased into 4cm for being molded wearing course；
（12）In step（10）Type PCR modified emulsifying asphalts are split in the sprinkling of resulting structures layer surface soon, and fountain height is 0.5kg/m2~
0.7kg/m2；
（13）SMA-13 waste tyre rubber powders and the preparation of the composite modified stone matrix asphalts of SBS, comprise the following steps：A, general
Be heated to 190 DEG C~200 DEG C gather materials weigh after during input mixes and stirs cylinder；B, the miberal powder after weighing is added to step a gained produce
In thing, 5s~10s is mixed and stirred；C, the waste tyre rubber powder that will warm up 165 DEG C~170 DEG C and SBS composite modified asphalts add after weighing
It is added in step b products therefroms, mixes and stirs 30s~45s, obtains SMA-13 stone matrix asphalt mixtures；
（14）Using hot-mix asphalt mixture paver, by step（13）The SMA-13 stone matrix asphalt mixtures for being obtained
Uniformly pave in step（12）Mould in, spreading speed is 2.0m/min~3.0m/min, and mixture laying temperature is low
In 175 DEG C；
（15）Pave and rolled using dual-steel wheel road roller immediately after after terminating；
（16）Step（15）After resulting structures layer is cooled to normal temperature, all side forms and end mould are removed, that is, complete shearing resistance bituminous paving
The batch production of structure sheaf is prefabricated.
7. a kind of live laying method of pin-connected panel shearing resistance asphalt pavement structural layer module described in claim 6, including following step
Suddenly：
（1）Section lengths, width and the area of bicycle road pavement track disease are measured, rut is detected with the method for drill hole sampling
Average influence depth of the disease to former road surface structare layer；
（2）According to step（1）Measurement, testing result, calculate milling length, width and the depth on former road surface, and carry out milling
Treatment, structural strengthening is carried out to the local disease below average influence depth；
（3）Detecting step（2）The flatness of working face after milling, the standard deviation of maximal clearance cannot be greater than 1.2mm, for part
The position that flatness is unsatisfactory for requiring carries out leveling using finish-milling planer；
（4）To step（3）Gained working face is purged, and is sprayed after the completion of cleaning and split soon type PCR modified emulsifying asphalt tack coats,
Fountain height is controlled in 0.7Kg/m2~0.9Kg/m2；
（5）According to step（4）The depth H of gained working face, selects the corresponding anti-shearing asphalt pavement structural layer mould of thickness
Block；Width W according to working face determines the cutting width of anti-shearing asphalt pavement structural layer module；The Cutting Length of individual module
It is 2m；The Cutting Length of length and individual module according to working face, it is determined that the quantity of required module；
（6）According to step（5）Selected parameter, carries out cutting, the numbering, Ran Houhuan of anti-shearing asphalt pavement structural layer module
Slow lifting, makes Prefabricated block depart from bed die；
（7）By step（6）Gained modular transportation is lifted to job site according to numbering, successively closely, smooth be assembled in operation
On face, the seam wherein between adjacent block is bonded using PCR modified emulsifying asphalts；Longitudinal direction between Prefabricated block and former road surface
Seam is using waste tyre rubber powder and the SBS composite modified asphalt cementation of fissures；Prefabricated block assembly terminate after by lifting part along wearing course table
Face cutting is flat can be open to traffic.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109133800A (en) * | 2018-09-29 | 2019-01-04 | 南京兴佑交通科技有限公司 | Semi-flexible composite pavement prefabricated section and preparation method, the road surface using prefabricated section preparation and preparation method |
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| CN104947564A (en) * | 2015-05-12 | 2015-09-30 | 上海市政工程设计研究总院（集团）有限公司 | Paving method of durable tunnel pavement |
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| CN101220574A (en) * | 2007-08-23 | 2008-07-16 | 孟宪惠 | Method for paving track resistant road surface and product improving track resistant capability of road surface |
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| CN109133800A (en) * | 2018-09-29 | 2019-01-04 | 南京兴佑交通科技有限公司 | Semi-flexible composite pavement prefabricated section and preparation method, the road surface using prefabricated section preparation and preparation method |
| CN109133800B (en) * | 2018-09-29 | 2021-11-09 | 南京兴佑交通科技有限公司 | Semi-flexible composite pavement precast block and manufacturing method thereof, pavement prepared by adopting precast block and manufacturing method thereof |
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