CN109468904A - A kind of pitch composite seal coat construction method for road in airport - Google Patents
A kind of pitch composite seal coat construction method for road in airport Download PDFInfo
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- CN109468904A CN109468904A CN201910005100.6A CN201910005100A CN109468904A CN 109468904 A CN109468904 A CN 109468904A CN 201910005100 A CN201910005100 A CN 201910005100A CN 109468904 A CN109468904 A CN 109468904A
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- Prior art keywords
- emulsified asphalt
- road
- spread
- construction
- paver
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- 238000010276 construction Methods 0.000 title claims abstract description 37
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 239000010426 asphalt Substances 0.000 claims abstract description 50
- 230000007704 transition Effects 0.000 claims abstract description 24
- 210000002615 epidermis Anatomy 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 38
- 239000004575 stone Substances 0.000 claims description 29
- 239000010410 layer Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000012615 aggregate Substances 0.000 claims description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 9
- 239000011707 mineral Substances 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 6
- 238000003892 spreading Methods 0.000 claims description 6
- 230000007480 spreading Effects 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000004945 emulsification Methods 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 239000006210 lotion Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000000306 recurrent effect Effects 0.000 claims description 3
- 238000009490 roller compaction Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 10
- 238000011010 flushing procedure Methods 0.000 abstract description 5
- 230000003487 anti-permeability effect Effects 0.000 abstract description 4
- 230000001804 emulsifying effect Effects 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 18
- 239000004746 geotextile Substances 0.000 description 10
- 238000013461 design Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- 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
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
-
- 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
- E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
- E01C7/353—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them with exclusively bituminous binders; Aggregate, fillers or other additives for application on or in the surface of toppings with exclusively bituminous binders, e.g. for roughening or clearing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a kind of pitch composite seal coat construction methods for road in airport, combined type sealing is carried out using the asphaltic base of sub-layer, transition zone and upper epidermis, the airfield runway is by MS-2 type micro-surface area upper epidermis, MS-2 type micro-surface area transition zone and modified emulsifying asphalt synchronous surface dressing；The pitch composite seal coat construction method for being used for road in airport can be avoided plat-bottom escape, while can also improve concrete road surface anti-permeability performance, flushing resistance, improve road face durability.
Description
Technical field
Present invention relates particularly to a kind of pitch composite seal coat construction methods for road in airport.
Background technique
Since the positions such as civil airport runway, parallel taxiway and fast slideway are subjected to heavy traffic, high-intensitive load for a long time
Repeated action, deicing level ground position is for a long time by the corrosion impact of deicing liquid, the phenomenon that Yi Fasheng plat-bottom escape, and is difficult to repair.
Caused by the reason of coming to nothing may be many factors, wherein base soak for a long time, top concreting when slurries
Lead to concrete temperature strain failure by shear substructure, the failure bottom substrate immersion of cementation of fissures material and boat with bottom substrate consolidation
Negative pressure causes edges of boards base purt mud etc. to be the common cause for causing base's destruction to be come to nothing generally believed in the industry when pocket slips over.
When civil airport cement concrete road surface uses cement stabilized macadam base, the type of interlayer of original adoption is stone
It considers sealing to be worth doing, mainly uses geomembrane later, Practical Project effect does not reach expected.Current major design scheme is setting
Geotextiles, or even it is not provided with middle layer (non-critical areas)；In recent engineering design intend consider setting 1 thickness degree 2cm with
Upper particulate formula (sand grains formula) bituminous concrete, or (single layer is same for asphaltic base top dressing layer of the setting thickness in monolayer no more than 1cm
Walk crushed stone sealing/slurry seal/micro-surface area).The Practical Project effect of different type middle layer is summarized as follows:
(1) middle layer or setting screening seal coat are not provided between cement treated material and cement sheeting.Both do not have buffer action,
Also the flushing resistance that cement treated material can not be improved, is substantially designed to abandon, and civil aviaton is in the non-key area in movement area at present
Cement road face is directly cast in the design scheme on cement treated material and should avoided by domain.
(2) geomembrane is set between cement treated material and cement sheeting.Engineering practice shows that geomembrane is arranged imitates in isolation
Good effect is played in terms of fruit, but due to geotechnological film surface excessively " smooth ", for cement pavement slab block and cutting optimal
Interlayer effect of contraction it is too weak, cause plate temperature day (round the clock) variation under the influence of dilatation amount be more than expected design,
Even occur the phenomenon that plate " overall movement " under extreme case, and then induces some more serious engineering diseases.Therefore the people
Boat substantially no longer uses this technical solution after the large airport engineering of East China.
(3) geotextiles are set between cement treated material and cement sheeting.All there is large area in setting geotextiles and geomembrane
When construction, due to geotextiles and geomembrane can not completely with the construction technology problem of cement treated material surface close " fitting ", and
In cement sheeting casting process, since heavy mechanical equipment (mainly concrete truck, material distributing machine etc.) is in geotextiles and geotechnique
Film surface when driving, can cause local failure to geotextiles and geomembrane.The good geotextiles of making can be sent out well first
It waves " isolation features ", and its surface can form the interface with the larger coefficient of friction resistance with cement concrete, be not in plate
The excessive problem of block dilatation amount.For geotextiles are with respect to asphaltic base sealing, project cost is lower, this is also that civil aviaton is current
One of the reason of considering setting geotextiles in the design.
But the geotextiles under cement sheeting are set and repeat to make in cement sheeting temperature contraction stress and the long-term of warping stress
Under, it is easy to the phenomenon that destroying as plate is mobile occur.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind can be avoided plat-bottom escape, while can also improve concrete
Road face anti-permeability performance, flushing resistance, the pitch composite seal coat construction method for road in airport for improving road face durability.
To solve the above problems, the present invention adopts the following technical scheme:
A kind of pitch composite seal coat construction method for road in airport, using the asphaltic base of sub-layer, transition zone and upper epidermis
Carry out combined type sealing, comprising the following steps:
1) sub-layer is constructed
(1) shovel dress building stones: the building stones for being packed into hopper should maintain an equal level with the height of hopper left baffle, prevent because expecting excessively to trickle down；
(2) emulsified asphalt: should check oil pick-up tube and its connector whether good seal, forbid emulsified asphalt to splash；
(3) it demarcates: the temperature of emulsified asphalt being heated and is stablized between 60 DEG C ~ 80 DEG C；It is on valve, is at pipe
Road recurrent state, spray bars emulsified asphalt are uniformly mixed with asphalt tank internal emulsification pitch, are demarcated in asphalt binder stability controller
Emulsified asphalt spread quantity and travel speed, vehicular velocity setting are 30 ~ 60m/min；
(4) spread paves: setting emulsified asphalt and the spraying altitude and dosage gathered materials open building stones dispenser and asphalt distribution
Bar；During spread, left and right spray bars are adjusted at any time, guarantee the integrality of seam；It should be met the following requirements when spread: sealing
In work progress, chip sealer wants smooth ride, at the uniform velocity；Construct the first width when, should gather materials on spread device in side plus baffle, prevent
Only building stones splash, construct last width when, use same method in the other side, among spread when width, unilateral pitch to be kept to spray
Spill width than building stones spray width more than 8 ~ 10cm；
(5) defect repair: when discovery sprinkling emulsified asphalt has blank, it should carry out manually mending in time and spill；When there is emulsified asphalt accumulation
When should strike off；When emulsified asphalt sprinkling ribbon occurs with the spreading that gathers materials, atomizer and bin gate should be closed in time, check atomizer
Pressure whether meet the requirements, whether bin gate is blocked by big particle diameter stone；Gather materials when floating, road surface should be scanned out, and must not
Rubbing oneself adhered in place gather materials；When any material is finished, the valve of all conveying materials should be closed, is usually first closed
Building stones switch, it is rear to close emulsified asphalt switch, the pitch oil film of Yao Liuyou 50cm, so as to seam.Then chip sealer is pressed into advance side
To sailing out of job step；
(6) joint treatment: transverse joint processing, transverse joint are handled using rendezvous method, in every section of joint part, are layered on iron plate or tarred brown paper are horizontal
Before this section is spilt a little and after terminal, length is 1 ~ 1.5m；Longitudinal joint processing, emulsified asphalt spread will guarantee that driving is straight suitable, construct
When next width, the spread of sealing side building stones should be aligned with the building stones on the right side of a upper width, guarantee that longitudinal joint docking is good, seam pitch
Lap must not exceed l0cm；
(7) be compacted and form: synchronous surface dressing laying finishes, after emulsified asphalt demulsification to be modified, using the tire of 16 ~ 30T
Road roller roll for 2 ~ 4 times, when rolling, should follow intermediate, first slow rear fast principle behind first both sides, each wheelmark weight when rolling
Folded 30cm, rolling speed control road roller in 30m/min ~ 60m/min, roller compaction process arbitrarily must not brake or turn around；
(8) construction terminates chip sealer to be cleaned: chip sealer being driven into no vehicular traffic, is parked without the specified safety place such as slope；
2) upper epidermis and transition zone construction
(1) travelling route of paver, and field lofting construction lofting: are determined according to the actual conditions of construction area；
(2) it charges: mineral aggregate, emulsified asphalt, filler, water, additive etc. being respectively charged into the corresponding hopper of paver, should ensure that mine
The humidity uniformity of material；
(3) it paves and blanks and moulding and conserving: charged paver is opened to construction starting point, be directed at strike angle line, and adjust and pave
Case thickness and camber are adjacent to paving box periphery with former road surface, and one piece of malthoid of place mat, works as paver preferably under the paving box of starting point
After advance, malthoid is taken away together together with mixture above, by production mix proportion and live mineral aggregate water content situation, sufficiently mixes
With mineral aggregate, filler, water, additive and lotion, mixed mixture inflow pave slot and be distributed in the slot that paves it is appropriate when, start booth
Paving vehicle at the uniform velocity advances, and openable paver vehicle following sparge pipe when needing, water spray is wet, and spreading speed is to keep mixture laying
Subject to amount and amount of agitation are almost the same, general forward speed is 1.5 ~ 3.0km/h, should carry out immediately artificial levelling after paving, and is looked for
Flat emphasis is: starting point, terminal, longitudinal seam, blocked up, excessively thin or uneven place, especially gathers materials the longitudinal direction of generation to super large partial size
Scratch should be removed and be filled and led up as early as possible, and molding rolls, upper epidermis and transition zone during conserving molding, forbid any vehicle and
Pedestrian enters, and transition zone carries out 4~6 using pneumatic-tired rollers and rolls, and upper epidermis paving can be carried out after the completion of transition zone rolls
It builds；
(4) scene of transition zone and upper epidermis paves: charged paver being opened to construction starting point, manipulator commands paver vehicle
It is directed at Construction control line, paving box is stably placed to the place that starts, leveling personnel adjust paving box thickness and camber；Manipulator's root
The experience adjustments material jaw opening that actually paves is combined according to calibration result；Mixture uniformly paves, and paver vehicle speed is controlled in 1.5-
3.0KM/h, strict control paving thickness are laid in seam using sheet iron in transverse joint processing to ensure pavement performance
Place, vehicle to be paved paves takes out simultaneously manual sorting seam immediately later；Control surface evenness.
The invention has the benefit that for solve plat-bottom escape, improve concrete road surface anti-permeability performance, flushing resistance,
Improve road face durability, using the arrangement and method for construction of asphaltic base composite seal coat, asphaltic base composite seal coat design overall thickness be 17 ~
22mm divides three layers of implementation, the asphaltic base combined type sealing scheme of sub-layer, transition zone and upper epidermis from the bottom to top.
Detailed description of the invention
Fig. 1 is a kind of structure combination diagram of the asphaltic base combined type sealing for road in airport of the present invention；
Fig. 2 is that a kind of sub-layer of the asphaltic base combined type sealing construction method for road in airport of the present invention is mainly constructed signal
Figure；
Fig. 3 is main for the upper epidermis and transition zone of a kind of asphaltic base combined type sealing construction method for road in airport of the present invention
Construction schematic diagram.
Specific embodiment
A specific embodiment of the invention is described in further detail below in conjunction with attached drawing, so that technical solution of the present invention is easier to
In understanding and grasp.
Refering to fig. 1 shown in -3, a kind of pitch composite seal coat construction method for road in airport, using sub-layer 1, transition
The asphaltic base of layer 2 and upper epidermis 3 carries out combined type sealing, and the airfield runway is by Portland Cement Concrete Surface Course 4, MS-2 type micro-surface area
Surface layer 5, MS-2 type micro-surface area transition zone 7, modified emulsifying asphalt synchronous surface dressing 8 and cement stabilized macadam base 6 form, packet
Include following steps:
1) sub-layer is constructed
(1) shovel dress building stones: the building stones for being packed into hopper should maintain an equal level with the height of hopper left baffle, prevent because expecting excessively to trickle down；
(2) emulsified asphalt: should check oil pick-up tube and its connector whether good seal, forbid emulsified asphalt to splash；
(3) it demarcates: the temperature of emulsified asphalt being heated and is stablized between 60 DEG C ~ 80 DEG C；It is on valve, is at pipe
Road recurrent state, spray bars emulsified asphalt are uniformly mixed with asphalt tank internal emulsification pitch, are demarcated in asphalt binder stability controller
Emulsified asphalt spread quantity and travel speed, vehicular velocity setting are 30 ~ 60m/min；
(4) spread paves: setting emulsified asphalt and the spraying altitude and dosage gathered materials open building stones dispenser and asphalt distribution
Bar；During spread, left and right spray bars are adjusted at any time, guarantee the integrality of seam；It should be met the following requirements when spread: sealing
In work progress, chip sealer wants smooth ride, at the uniform velocity；Construct the first width when, should gather materials on spread device in side plus baffle, prevent
Only building stones splash, construct last width when, use same method in the other side, among spread when width, unilateral pitch to be kept to spray
Spill width than building stones spray width more than 8 ~ 10cm；
(5) defect repair: when discovery sprinkling emulsified asphalt has blank, it should carry out manually mending in time and spill；When there is emulsified asphalt accumulation
When should strike off；When emulsified asphalt sprinkling ribbon occurs with the spreading that gathers materials, atomizer and bin gate should be closed in time, check atomizer
Pressure whether meet the requirements, whether bin gate is blocked by big particle diameter stone；Gather materials when floating, road surface should be scanned out, and must not
Rubbing oneself adhered in place gather materials；When any material is finished, the valve of all conveying materials should be closed, is usually first closed
Building stones switch, it is rear to close emulsified asphalt switch, the pitch oil film of Yao Liuyou 50cm, so as to seam.Then chip sealer is pressed into advance side
To sailing out of job step；
(6) joint treatment: transverse joint processing, transverse joint are handled using rendezvous method, in every section of joint part, are layered on iron plate or tarred brown paper are horizontal
Before this section is spilt a little and after terminal, length is 1 ~ 1.5m；Longitudinal joint processing, emulsified asphalt spread will guarantee that driving is straight suitable, construct
When next width, the spread of sealing side building stones should be aligned with the building stones on the right side of a upper width, guarantee that longitudinal joint docking is good, seam pitch
Lap must not exceed l0cm；
(7) be compacted and form: synchronous surface dressing laying finishes, after emulsified asphalt demulsification to be modified, using the tire of 16 ~ 30T
Road roller roll for 2 ~ 4 times, when rolling, should follow intermediate, first slow rear fast principle behind first both sides, each wheelmark weight when rolling
Folded 30cm, rolling speed control road roller in 30m/min ~ 60m/min, roller compaction process arbitrarily must not brake or turn around；
(8) construction terminates chip sealer to be cleaned: chip sealer being driven into no vehicular traffic, is parked without the specified safety place such as slope；
2) upper epidermis and transition zone construction
(1) travelling route of paver, and field lofting construction lofting: are determined according to the actual conditions of construction area；
(2) it charges: mineral aggregate, emulsified asphalt, filler, water, additive etc. being respectively charged into the corresponding hopper of paver, should ensure that mine
The humidity uniformity of material；
(3) it paves and blanks and moulding and conserving: charged paver is opened to construction starting point, be directed at strike angle line, and adjust and pave
Case thickness and camber are adjacent to paving box periphery with former road surface, and one piece of malthoid of place mat, works as paver preferably under the paving box of starting point
After advance, malthoid is taken away together together with mixture above, by production mix proportion and live mineral aggregate water content situation, sufficiently mixes
With mineral aggregate, filler, water, additive and lotion, mixed mixture inflow pave slot and be distributed in the slot that paves it is appropriate when, start booth
Paving vehicle at the uniform velocity advances, and openable paver vehicle following sparge pipe when needing, water spray is wet, and spreading speed is to keep mixture laying
Subject to amount and amount of agitation are almost the same, general forward speed is 1.5 ~ 3.0km/h, should carry out immediately artificial levelling after paving, and is looked for
Flat emphasis is: starting point, terminal, longitudinal seam, blocked up, excessively thin or uneven place, especially gathers materials the longitudinal direction of generation to super large partial size
Scratch should be removed and be filled and led up as early as possible, and molding rolls, upper epidermis and transition zone during conserving molding, forbid any vehicle and
Pedestrian enters, and transition zone carries out 4~6 using pneumatic-tired rollers and rolls, and upper epidermis paving can be carried out after the completion of transition zone rolls
It builds；
(4) scene of transition zone and upper epidermis paves: charged paver being opened to construction starting point, manipulator commands paver vehicle
It is directed at Construction control line, paving box is stably placed to the place that starts, leveling personnel adjust paving box thickness and camber；Manipulator's root
The experience adjustments material jaw opening that actually paves is combined according to calibration result；Mixture uniformly paves, and paver vehicle speed is controlled in 1.5-
3.0KM/h, strict control paving thickness are laid in seam using sheet iron in transverse joint processing to ensure pavement performance
Place, vehicle to be paved paves takes out simultaneously manual sorting seam immediately later；Control surface evenness.
The invention has the benefit that for solve plat-bottom escape, improve concrete road surface anti-permeability performance, flushing resistance,
Improve road face durability, using the arrangement and method for construction of asphaltic base composite seal coat, asphaltic base composite seal coat design overall thickness be 17 ~
22mm divides three layers of implementation, the asphaltic base combined type sealing scheme of sub-layer, transition zone and upper epidermis from the bottom to top.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of pitch composite seal coat construction method for road in airport, it is characterised in that: using sub-layer, transition zone and on
The asphaltic base on surface layer carries out combined type sealing, comprising the following steps:
1) sub-layer is constructed
(1) shovel dress building stones: the building stones for being packed into hopper should maintain an equal level with the height of hopper left baffle, prevent because expecting excessively to trickle down；
(2) emulsified asphalt: should check oil pick-up tube and its connector whether good seal, forbid emulsified asphalt to splash；
(3) it demarcates: the temperature of emulsified asphalt being heated and is stablized between 60 DEG C ~ 80 DEG C；It is on valve, is at pipe
Road recurrent state, spray bars emulsified asphalt are uniformly mixed with asphalt tank internal emulsification pitch, are demarcated in asphalt binder stability controller
Emulsified asphalt spread quantity and travel speed, vehicular velocity setting are 30 ~ 60m/min；
(4) spread paves: setting emulsified asphalt and the spraying altitude and dosage gathered materials open building stones dispenser and asphalt distribution
Bar；During spread, left and right spray bars are adjusted at any time, guarantee the integrality of seam；It should be met the following requirements when spread: sealing
In work progress, chip sealer wants smooth ride, at the uniform velocity；Construct the first width when, should gather materials on spread device in side plus baffle, prevent
Only building stones splash, construct last width when, use same method in the other side, among spread when width, unilateral pitch to be kept to spray
Spill width than building stones spray width more than 8 ~ 10cm；
(5) defect repair: when discovery sprinkling emulsified asphalt has blank, it should carry out manually mending in time and spill；When there is emulsified asphalt accumulation
When should strike off；When emulsified asphalt sprinkling ribbon occurs with the spreading that gathers materials, atomizer and bin gate should be closed in time, check atomizer
Pressure whether meet the requirements, whether bin gate is blocked by big particle diameter stone；Gather materials when floating, road surface should be scanned out, and must not
Rubbing oneself adhered in place gather materials；When any material is finished, the valve of all conveying materials should be closed, is usually first closed
Building stones switch, it is rear to close emulsified asphalt switch, the pitch oil film of Yao Liuyou 50cm, so as to seam；
Then chip sealer is sailed out of into job step by direction of advance；
(6) joint treatment: transverse joint processing, transverse joint are handled using rendezvous method, in every section of joint part, are layered on iron plate or tarred brown paper are horizontal
Before this section is spilt a little and after terminal, length is 1 ~ 1.5m；Longitudinal joint processing, emulsified asphalt spread will guarantee that driving is straight suitable, construct
When next width, the spread of sealing side building stones should be aligned with the building stones on the right side of a upper width, guarantee that longitudinal joint docking is good, seam pitch
Lap must not exceed l0cm；
(7) be compacted and form: synchronous surface dressing laying finishes, after emulsified asphalt demulsification to be modified, using the tire of 16 ~ 30T
Road roller roll for 2 ~ 4 times, when rolling, should follow intermediate, first slow rear fast principle behind first both sides, each wheelmark weight when rolling
Folded 30cm, rolling speed control road roller in 30m/min ~ 60m/min, roller compaction process arbitrarily must not brake or turn around；
(8) construction terminates chip sealer to be cleaned: chip sealer being driven into no vehicular traffic, is parked without the specified safety place such as slope；
2) upper epidermis and transition zone construction
(1) travelling route of paver, and field lofting construction lofting: are determined according to the actual conditions of construction area；
(2) it charges: mineral aggregate, emulsified asphalt, filler, water, additive etc. being respectively charged into the corresponding hopper of paver, should ensure that mine
The humidity uniformity of material；
(3) it paves and blanks and moulding and conserving: charged paver is opened to construction starting point, be directed at strike angle line, and adjust and pave
Case thickness and camber are adjacent to paving box periphery with former road surface, and one piece of malthoid of place mat, works as paver preferably under the paving box of starting point
After advance, malthoid is taken away together together with mixture above, by production mix proportion and live mineral aggregate water content situation, sufficiently mixes
With mineral aggregate, filler, water, additive and lotion, mixed mixture inflow pave slot and be distributed in the slot that paves it is appropriate when, start booth
Paving vehicle at the uniform velocity advances, and openable paver vehicle following sparge pipe when needing, water spray is wet, and spreading speed is to keep mixture laying
Subject to amount and amount of agitation are almost the same, general forward speed is 1.5 ~ 3.0km/h, should carry out immediately artificial levelling after paving, and is looked for
Flat emphasis is: starting point, terminal, longitudinal seam, blocked up, excessively thin or uneven place, especially gathers materials the longitudinal direction of generation to super large partial size
Scratch should be removed and be filled and led up as early as possible, and molding rolls, upper epidermis and transition zone during conserving molding, forbid any vehicle and
Pedestrian enters, and transition zone carries out 4~6 using pneumatic-tired rollers and rolls, and upper epidermis paving can be carried out after the completion of transition zone rolls
It builds；
(4) scene of transition zone and upper epidermis paves: charged paver being opened to construction starting point, manipulator commands paver vehicle
It is directed at Construction control line, paving box is stably placed to the place that starts, leveling personnel adjust paving box thickness and camber；Manipulator's root
The experience adjustments material jaw opening that actually paves is combined according to calibration result；Mixture uniformly paves, and paver vehicle speed is controlled in 1.5-
3.0KM/h, strict control paving thickness are laid in seam using sheet iron in transverse joint processing to ensure pavement performance
Place, vehicle to be paved paves takes out simultaneously manual sorting seam immediately later；Control surface evenness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005100.6A CN109468904A (en) | 2019-01-03 | 2019-01-03 | A kind of pitch composite seal coat construction method for road in airport |
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| CN110578280A (en) * | 2019-08-19 | 2019-12-17 | 江苏增光复合材料科技有限公司 | Crack-resistant anti-scouring cement pavement composite structure |
| CN110578281A (en) * | 2019-08-19 | 2019-12-17 | 江苏增光复合材料科技有限公司 | construction method of civil aviation airport field way cement pavement structure layer |
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| CN110578280A (en) * | 2019-08-19 | 2019-12-17 | 江苏增光复合材料科技有限公司 | Crack-resistant anti-scouring cement pavement composite structure |
| CN110578281A (en) * | 2019-08-19 | 2019-12-17 | 江苏增光复合材料科技有限公司 | construction method of civil aviation airport field way cement pavement structure layer |
| CN110578281B (en) * | 2019-08-19 | 2021-07-09 | 江苏增光新材料科技股份有限公司 | Construction method of civil aviation airport field way cement pavement structure layer |
| CN110578280B (en) * | 2019-08-19 | 2021-08-24 | 江苏增光新材料科技股份有限公司 | Crack-resistant anti-scouring cement pavement composite structure |
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