CN108978389A - A kind of construction method of bituminous pavement - Google Patents
A kind of construction method of bituminous pavement Download PDFInfo
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- CN108978389A CN108978389A CN201810609276.8A CN201810609276A CN108978389A CN 108978389 A CN108978389 A CN 108978389A CN 201810609276 A CN201810609276 A CN 201810609276A CN 108978389 A CN108978389 A CN 108978389A
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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
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Abstract
A kind of construction method of bituminous pavement, the present invention carries out more careful setting to the work progress and construction parameter of bituminous pavement, compare more smooth closely knit with other present bituminous pavements in the road surface built, with preferable loosening, corrosion-resistant and isolation performance, it avoids road surface and generates gap, the use for improving road surface receives the order and security performance, simultaneously, due to having carried out effective distribution to entire process, the construction time can be greatlyd save, and it is controlled by the temperature to mixture, it can largely reduce because of wastage of material caused by material transportation and work progress, save the laying cost of bituminous pavement.
Description
Technical field
The invention belongs to technical field of road construction, and in particular to a kind of construction method of bituminous pavement.
Background technique
Bituminous pavement refers to various types of road surfaces that bitumen for road use material making is mixed in mineral material.Pitch combines
Material, which improves to pave the way, resists the ability of driving and the damage of natural cause road pavement with pellet, and evenness of road surface is made to lack dirt, waterproof, warp
It is durable long.Therefore, bituminous pavement is a kind of high class pavement being the most widely used in road construction.The pitch class knot of bituminous pavement
Structure layer itself belongs to flexible pavement scope, but rigid cement concrete, or half can also be used in addition to flexible material in its base
The hydraulic material of rigidity.Currently, bituminous pavement has more and more been applied in the road construction in city, due to routine
Often there is the problem that quality control is not tight, and laying parameter is difficult to control in asphalt pavement construction method, accordingly, it is desirable to provide a kind of
The construction method of bituminous pavement, for the asphalt pavement construction in city and rural construction.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of construction methods of bituminous pavement.
The present invention is achieved by the following technical programs.
A kind of construction method of bituminous pavement provided by the invention, comprising the following steps:
S1 is arranged the base on road surface, and carries out finishing operations, construction survey and construction lofting is then carried out, using tight
Line device is released along every 10 meters of laying of roadway width both sides from 0.5 meter of the making boundary in place and the Construction Elevation of middle point, and two
Side suspension steel wire reference line, middle point increase slide bar and control the elevation that paves；
S2 mixes and stirs bitumen concrete, and the heating temperature for controlling pitch is 140-160 DEG C, and the heating temperature of building stones exists
150-170 DEG C, the factory temperature of mixed bitumen concrete is controlled at 150-160 DEG C；
S3, the transport of mix asphalt concrete, is transported using dump truck, is transported to the mix asphalt concrete in the place that paves
Temperature is not less than 120-150 DEG C, when transport, and the mixed liquor of one layer of diesel oil and water is brushed in the recessing of transport vehicle；
S4, mix asphalt concrete pave, and are paved using thickness control method with bitumen concrete paver full width, are pacified on paver
Automatic Levelling standard apparatus is filled, and the laying parameter of paver is set, paver is allowed to run work under full-automatic state, is travelled
Speed control is in 4~6m/min；
S5, mix asphalt concrete compacting, after the completion of paving, and then mix asphalt concrete is compacted, by first pressing, again press with
And final pressure three phases carry out, and are driven at a constant speed using road roller from low side to flash straight line, should be overlapped last 1/2-1/3 every time
Wheelmark is compacted the parameter of work are as follows: and 110 DEG C~130 DEG C of first pressing, 2~3km/h of speed；100 DEG C~120 DEG C of pressure again, speed 3~
5km/h；80 DEG C~90 DEG C of final pressure, 4~5km/h of speed；
S6, seam pave and set chock in its end when being compacted, and when secondary construction continues along its end transverse joint, to first paving
With edge answer refinement to repair, by loosening, crackle, thickness is insufficient or the part that is not compacted sufficiently is disposed, and digging neat tape edge will hang down
Directly, linear straight suitable, and the step of spraying one layer of sticking layer oil and heated bitumen, continuing thereafter with repetition S4-S5 carries out mix asphalt concrete
Pave and be compacted；
S7, natural cooling, bitumen concrete to be mixed is all after the completion of construction, allows its natural cooling, after temperature is lower than 50 DEG C,
Can open to traffic, construction complete.
Further, when carrying out construction lofting in step sl, device for measuring force is installed on cord holder, and control reference line
Pulling force be greater than 800N.
Further, it carries out in paving process in step s 4, the paving material of bitumen concrete is maintained at 125 DEG C~160 DEG C
Between.
Further, in step s 5, longitudinal progress is rolled, it is adjacent to roll at least overlapping widths are as follows: two-wheel 30cm, two wheels
For the half of the width of rear-wheel.
Further, in step s 5, the temperature of mix asphalt concrete is mixed when final pressure is completed not less than 90 DEG C when multiple pressure is completed
The temperature for closing bitumen concrete is not less than 70 DEG C.
Further, in step s 5, as the temperature of seam crossing has been unable to meet compacting temperature requirement, heater should be used
The temperature for improving mix asphalt concrete has reached required compacting temperature, then until being compacted to seamless mark, otherwise, it is necessary to will not be inconsistent
The mix asphalt concrete for closing temperature requirement cut and making again, and until being rolled by seamless mark jointly immediately.
Further, it when carrying out seam in step s 6, if it is longitudinal cold joint, then needs first to be dug along longitudinal direction with planer
It is straight, if it is lateral cold joint, then need with joint-cutting machine-cut it is straight after pave again.
Further, in step s 6, due to operating interruptions, the end of material spreader has been cooled down, and is restored at second day
When work, end need to be made into one of transverse joint, transverse joint direction should be at a generally normal angle with making direction, transverse joint in connected level and
Should all be staggered at least distance of 1m between adjacent stroke.
The beneficial effects of the present invention are: implementation through the invention, work progress and construction ginseng to bituminous pavement
Number carries out more careful setting, the road surface built compare with other present bituminous pavements more it is smooth it is closely knit, have it is preferable
Loosening, it is corrosion-resistant and isolation performance, avoid road surface generate gap, the use for improving road surface receives the order and security performance,
Simultaneously as having carried out effective distribution to entire process, the construction time can be greatlyd save, and by mixture
Temperature control, can largely reduce because wastage of material caused by material transportation and work progress, saves asphalt road
The laying cost in face.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
A kind of construction method of bituminous pavement, comprising the following steps:
S1 is arranged the base on road surface, and carries out finishing operations, construction survey and construction lofting is then carried out, using tight
Line device is released along every 10 meters of laying of roadway width both sides from 0.5 meter of the making boundary in place and the Construction Elevation of middle point, and two
Side suspension steel wire reference line, middle point increase slide bar and control the elevation that paves；
S2 mixes and stirs bitumen concrete, and the heating temperature for controlling pitch is 140-160 DEG C, and the heating temperature of building stones exists
150-170 DEG C, the factory temperature of mixed bitumen concrete is controlled at 150-160 DEG C；
S3, the transport of mix asphalt concrete, is transported using dump truck, is transported to the mix asphalt concrete in the place that paves
Temperature is not less than 120-150 DEG C, when transport, and the mixed liquor of one layer of diesel oil and water is brushed in the recessing of transport vehicle；
S4, mix asphalt concrete pave, and are paved using thickness control method with bitumen concrete paver full width, are pacified on paver
Automatic Levelling standard apparatus is filled, and the laying parameter of paver is set, paver is allowed to run work under full-automatic state, is travelled
Speed control is in 4~6m/min；
S5, mix asphalt concrete compacting, after the completion of paving, and then mix asphalt concrete is compacted, by first pressing, again press with
And final pressure three phases carry out, and are driven at a constant speed using road roller from low side to flash straight line, should be overlapped last 1/2-1/3 every time
Wheelmark is compacted the parameter of work are as follows: and 110 DEG C~130 DEG C of first pressing, 2~3km/h of speed；100 DEG C~120 DEG C of pressure again, speed 3~
5km/h；80 DEG C~90 DEG C of final pressure, 4~5km/h of speed；
S6, seam pave and set chock in its end when being compacted, and when secondary construction continues along its end transverse joint, to first paving
With edge answer refinement to repair, by loosening, crackle, thickness is insufficient or the part that is not compacted sufficiently is disposed, and digging neat tape edge will hang down
Directly, linear straight suitable, and the step of spraying one layer of sticking layer oil and heated bitumen, continuing thereafter with repetition S4-S5 carries out mix asphalt concrete
Pave and be compacted；
S7, natural cooling, bitumen concrete to be mixed is all after the completion of construction, allows its natural cooling, after temperature is lower than 50 DEG C,
Can open to traffic, construction complete.
Further, when carrying out construction lofting in step sl, device for measuring force is installed on cord holder, and control reference line
Pulling force be greater than 800N.
Further, it carries out in paving process in step s 4, the paving material of bitumen concrete is maintained at 125 DEG C~160 DEG C
Between.
Further, in step s 5, longitudinal progress is rolled, it is adjacent to roll at least overlapping widths are as follows: two-wheel 30cm, two wheels
For the half of the width of rear-wheel.
Further, in step s 5, the temperature of mix asphalt concrete is mixed when final pressure is completed not less than 90 DEG C when multiple pressure is completed
The temperature for closing bitumen concrete is not less than 70 DEG C.
Further, in step s 5, as the temperature of seam crossing has been unable to meet compacting temperature requirement, heater should be used
The temperature for improving mix asphalt concrete has reached required compacting temperature, then until being compacted to seamless mark, otherwise, it is necessary to will not be inconsistent
The mix asphalt concrete for closing temperature requirement cut and making again, and until being rolled by seamless mark jointly immediately.
Further, it when carrying out seam in step s 6, if it is longitudinal cold joint, then needs first to be dug along longitudinal direction with planer
It is straight, if it is lateral cold joint, then need with joint-cutting machine-cut it is straight after pave again.
Further, in step s 6, due to operating interruptions, the end of material spreader has been cooled down, and is restored at second day
When work, end need to be made into one of transverse joint, transverse joint direction should be at a generally normal angle with making direction, transverse joint in connected level and
Should all be staggered at least distance of 1m between adjacent stroke.
It is illustrated below with a specific work progress.
I, construction survey
Main contents include:
A. the vertical broken height process control of road pavement；
B. cross-section each portion's elevation；
C. the inspection repetition measurement of plan-position；
C. the construction lofting during asphalt paving；
D. construction detection.
The good and spreading quality that will badly directly influence road surface of the procedure.For this purpose, my company has specially set up building site
Measurement group is equipped with the survey engineer 2 with measurement experience and the skilled survey several and advanced measuring instrument (total stations 1 of work
Platform, level 2).Following items work will be carried out in construction:
1. needing to carry out the encryption of bench mark according to construction, important bench mark staking mark is protected, the elevation of each bench mark
It must make once to be closed measurement in cross-post, to detect the accuracy of each bench mark.
2. various measuring instruments have to be demarcated and checked before use, it is ensured that its error is within allowed band.
3. measuring basis data and measurements such as the benchmark, the control points that are provided according to construction drawing design and supervising engineer
Mark carries out translocation by defined precision, restores alignment.After measurement result reports supervising engineer's core to ratify, as construction operation
Foundation.Since the elevation of sub-surface, transverse slope, flatness will directly influence the flatness and engineering matter of bituminous pavement paving
Amount.Therefore, before the asphalt that paves, absolute altitude to former road surface, transverse slope, flatness make primary comprehensive translocation, increase
Detect frequency.The detection frequency of the measurement of the level is no less than every 10 meters of sections, and road single width is not less than 3 points.This work is super
Preceding progress, in order to avoid influence bituminous mixture laying operation.Construction lofting: it is released from making boundary for every 10 meters along making width both sides
At 0.5 meter and the Construction Elevation of intermediate point, two side suspension steel wire reference lines, middle point adds slide bar control design case to pave elevation.
In order to ensure reference line is tight, device for measuring force is installed on cord holder.According to previous construction experience, reference line pulling force is not less than
800N in this way, the sag of reference line will be made no more than 1mm, and makes the spacing of cord holder no more than 200m.The benchmark used
Line wirerope diameter is advisable no more than 3mm.Whether elevation and the paving thickness that detect asphalt surface course in paving process in time are sufficient
Enough, code requirement will be met by detecting frequency and absolute altitude.All detection data will arrange in time binds into book form, in case check.
II, Bituminous Mixture Ratio
Bitumen Mix Design is carried out in strict accordance with the step of specification regulation, partial objectives for mix-design (cold burden
Mix-design), refinery operation scheduling (hot material mix-design) and production cooperation verifying.And accomplish:
(1) the quasi- index Test that gathers materials, pitch report, asphalt are submitted to supervising engineer within 28 days before going into operation
Every skill such as gradation, asphalt binder dosage and asphalt stability, flow valuve, voidage, dynamic stability, residual stability
The written material of art index.
(2) to the overall process of mix-design, supervising engineer is asked and in relation to station by design liaison and guidance.
(3) in the approval for not obtaining supervising engineer, any change must not be made to production technology, all operations are in management
It is carried out under the close supervision of engineer.
III, mixture mixes and stirs
A. thick, fine aggregate should classify stacking and feed, and such as thick, fine aggregate clay content is more than 1%, is not had to firmly.
B. it mixes and stirs to gather materials and fully be dried including miberal powder.The gathering materials of every kind of specification, miberal powder and pitch must all be distinguished
Match ratio as required carries out ingredient.
C. the heating temperature of pitch is answered within the scope of 140 DEG C~160 DEG C, and building stones heating temperature should be in 150 DEG C~170 DEG C ranges
Interior, the factory temperature of mixture should be within the scope of 150 DEG C~160 DEG C, and should ensure that the temperature for transporting to construction site not less than 160
℃。
D. it the mixture of all overheats or carbonized, blistered and aqueous mixture should all be abandoned.Mix and stir later mix
Closing material must be uniformly that all particles to gather materials should all coat oil plant, must not have grey spot, isolation and caking phenomenon,
Otherwise engineering must not be used for.
E. when the specification of material and match ratio change, all trial mix should be carried out according to door test data, when trial mix
Bitumen content, gradation composition and the related mechanical property of mixture must be surveyed sample, and submits a report asking for supervising engineer's approval.
The transport of IV, mixture
The bitumen concrete mixed and stirred using blending station, is transported with dump truck.It is transported to the asphalt temperature in the place that paves not
Lower than 120~150 DEG C, the undesirable mixture of quality must not making on the way.
A. clean self-unloading slot bucket vehicles drive mixture should be used, the car side board inner wall and base surface of transport vehicle clean dry
Only, have to be stained with organic substance, and brushing a thin layer grease (diesel oil: water=1:3) mixed liquor in recessing, to prevent dust dirty
Dye and heat excessively lose, and haulage vehicle should have overlay device, should seal fastening in slot quadrangle.
B. isolated or conglomeration cannot crush hard shell, agglomerate are stayed in dumper discharging in the mixture on vehicle,
And should all be discarded lower than regulation making temperature or the mixing being moistened by rain, engineering must not be used for.
C. unless the material shipped can spread on daytime and can be compacted, or paved base site, have it is enough and feasible
Lighting installation, the same day or it is on duty cannot complete compacting mixture must not transport scene to.Otherwise, extra mixture is not handy
In this engineering.
V, mixture paves
It is paved using thickness control method with bitumen concrete paver full width.After paver loads onto Automatic Levelling standard apparatus,
To the parameters such as thickness, the elevation angle that paver input is laid with, paver is allowed to run work under full-automatic state, travel speed 4~
6m/min.The paving material of bitumen concrete is maintained between 125 DEG C~160 DEG C, and loose laying depth is determined according to test section.
A. before the mixture of making upper layer, the quality of confirmation lower layer should be checked, when lower layer's quality is undesirable, no
Standard paves.Supervising engineer's approval should be submitted a report asking for before paving.Measuring instrument should be checked and approved before unwrapping wire.
B. surface layer and adhesion coating should continuously construct.Otherwise, all discrete materials on surface should all be cleaned, until surface is without dirt
Until object.Before making surface layer, adhesion coating pitch should be spilt and obtain supervising engineer's approval.To swept and spilt the table of adhesion coating pitch
Face, mustn't vehicle driving.
C. dumper should incessantly unload mixture into paver, and pave immediately, without delay.To paver
The speed of conveying material should work continuously with paver.In case of temporary fracture, then paver should remain in operation.
D. it paves and is pushed ahead along wirerope or steel nose girder, to control elevation.Using wirerope is hung, centre is adopted on road surface both sides
With steel nose girder, every 6 meters set a measuring point.Surface layer controls elevation using Automatic Levelling standard apparatus (equalizer bar).
E. the travel speed and operating method of paver should adjust in time, and spreading speed is preferably controlled at 2-4 ms/min, with
Guarantee that mixture is smooth and is equably layered on entire paving width, does not generate drag mark, tomography and isolation.
It f., all must not paved mixture when the rainy day, surface was lower than 10 DEG C there are ponding and temperature.
VI, compacting
After detection mixture temperature is suitble to after paving, and then roll.Compacting by first pressing, multiple pressure, final pressure three phases into
Row.Road roller drives at a constant speed from low side to flash straight line, fast after first slow, pressure of shaking after first static pressure, by weak vibration to shaking by force, then from by force to
It is weak, it should be overlapped 1/3 wheelmark of l/2-every time.Prevent brake, u-turn, curve driving in work.Roll temperature are as follows: 110 DEG C of first pressing~
130 DEG C, 2~3km/h of speed；100 DEG C~120 DEG C are pressed again, 3~5km/h of speed；80 DEG C~90 DEG C of final pressure, 4~5km/h of speed.
It to the Local topography that road roller can not be compacted, is tamped using vibratory plate compactor, road roller is not or not roller-compaction and uncooled road
Steering, u-turn or stop-for-waiting in section.
A. mixture completion pave and strike off should immediately road pavement be checked, to irregular place in time manually into
Row adjustment, is then sufficiently and uniformly compacted.
B. it is equipped with small-size vibratory roller or hand steered vibration tamping plate, for narrow narrow place compacting or repairing work.
C. compacting is divided into first pressing, multiple pressure and final pressure.
D. first pressing uses steel wheel or vibrated roller (or depressed), and makes driving wheel as close as possible to paver, first pressing inspection
Flatness and road camber should modify when necessary, multiple pressure tandem tandem vibratory roller or rubber-tyred roller.Final pressure uses light
Face steel roller or vibrated roller (but must not vibrate).
E. rolling operation carries out at a temperature of mixture is in and can obtain maximum density, and general first pressing must not be lower than
130 DEG C, press must not again it is low must not be lower than 90 DEG C, temperature when final pressure is completed must not be lower than 70 DEG C.
F. rolling longitudinally to carry out, and the low side to be paved by material uniformly carries out at a slow speed towards flash, adjacent to roll at least
Overlapping widths are as follows: two-wheel 30cm, two wheels are the half of the width of rear-wheel.
G. during rolling, road roller must not be stopped over, turns to or be braked.It is preceding when road roller alternately rolls back and forth
Stopping place twice afterwards should be at a distance of 10m or more, and should be driven out to other than compacting start line 3m.
H. road roller must not rest on the mixture pressed through of the temperature higher than 70 DEG C.Meanwhile it should take and effectively arrange
It applies, prevents oil plant, lubricating grease, gasoline or other organic impurities from falling on road surface during road roller is operated or parked.
I. compacting when, as seam crossing (including longitudinal joint, transverse joint or because other reasons formed construction joint) mixing temperature
Compacting temperature requirement is had been unable to meet, the temperature of mixture should be improved using heater and reaches the compacting temperature of requirement, then is pressed
Until actual arrival is seamless mark.Otherwise, it is necessary to mixture and again making are cut, until being rolled by seamless mark jointly immediately.
VII, seam
Transverse joint is preferably grown unsuitable short, to reduce transverse joint, sets chock in end when decking and rolling, it is horizontal that next day continues end when construction
Seam, to first pave with edge answer refinement to repair, by loosening, crackle, thickness is insufficient or the part that is not compacted sufficiently is disposed, and digs
Neat tape edge is vertical, linear straight suitable, and sprays one layer of sticking layer oil, and heated bitumen can pave virgin material.
A. making work arrangement should make vertically and horizontally two kinds of seams be held at minimum number, in the density and table of seam crossing
Face modification should be identical as other parts.
B. longitudinal seam should use a kind of automatic control seamer device, to control the absolute altitude between adjacent stroke, and do
It is reliably combined between adjacent stroke.Longitudinal seam should be hot seam, and should be it is continuous with it is parallel, tape edge should vertically and shape
It is in line.Such as cold joint, first dug along longitudinal direction with planer straight, transverse joint is then directly paved with joint-cutting machine-cut again.
C. the mixture on longitudinal joint should be carried out immediately behind with a static(al) steel roller with static(al) in paver
It rolls.Work is rolled to be carried out continuously until seam is smooth and closely knit.
D. longitudinal seam is arranged except passing vehicle rut, becomes slope line with horizontal slope and is overlapped and should crouch within 15cm with lower
The dislocation of layer seam at least should be 15cm.
E. it when the end due to operating interruptions, material spreader has cooled down, or when resuming work within second day, should just do
At one of transverse joint.Transverse joint should be at a generally normal angle with making direction.Transverse joint should all be at least between connected level and adjacent stroke
Be staggered 1m.Transverse joint should have one vertically, be rolled into good arris.
F. when new black top concrete connect with original road surface and cooperates absolute altitude, enough numbers should be cut in original road surface
Amount newly spreads minimum thickness to guarantee to reach as defined in drawing.
VIII, open to traffic
After the completion of bitumen concrete construction, allow its natural cooling can open to traffic after temperature is lower than 50 DEG C.
Detection in work progress
Inspect the skills such as bitumen content, aggregate grading, flow valuve, stability, voidage, the saturation degree of asphalt in construction by random samples
Art index detects grade elevation, thickness, flatness, compactness, width, transverse slope etc. after completion daily in time, and reaches specification
Design requirement.
Claims (8)
1. a kind of construction method of bituminous pavement, it is characterised in that the following steps are included:
S1 is arranged the base on road surface, and carries out finishing operations, then carries out construction survey and construction lofting, uses cord holder
It is released along every 10 meters of laying of roadway width both sides outstanding from 0.5 meter of the making boundary in the place and Construction Elevation of middle point, both sides
Steel wire reference line is hung, middle point increases slide bar and controls the elevation that paves；
S2 mixes and stirs bitumen concrete, and the heating temperature for controlling pitch is 140-160 DEG C, and the heating temperature of building stones is in 150-170
DEG C, the factory temperature of mixed bitumen concrete is controlled at 150-160 DEG C；
S3, the transport of mix asphalt concrete, is transported using dump truck, is transported to the temperature of the mix asphalt concrete in the place that paves
Not less than 120-150 DEG C, when transport, the mixed liquor of one layer of diesel oil and water is brushed in the recessing of transport vehicle；
S4, mix asphalt concrete pave, and are paved using thickness control method with bitumen concrete paver full width, install certainly on paver
Dynamic levelling benchmark device, and the laying parameter of paver is set, allow paver to run work, travel speed under full-automatic state
Control is in 4~6m/min；
S5, mix asphalt concrete compacting, after the completion of paving, is and then compacted mix asphalt concrete, by first pressing, multiple pressure and end
It presses three phases to carry out, is driven at a constant speed using road roller from low side to flash straight line, last 1/2-1/3 wheel should be overlapped every time
Mark is compacted the parameter of work are as follows: and 110 DEG C~130 DEG C of first pressing, 2~3km/h of speed；100 DEG C~120 DEG C of pressure again, speed 3~
5km/h；80 DEG C~90 DEG C of final pressure, 4~5km/h of speed；
S6, seam pave and set chock in its end when being compacted, and when secondary construction continues along its end transverse joint, to first paving with it
Edge answers refinement to repair, and by loosening, crackle, thickness is insufficient or the part that is not compacted sufficiently is disposed, and it is vertical to dig neat tape edge, line
Shape is directly suitable, and the step of spraying one layer of sticking layer oil and heated bitumen, continuing thereafter with repetition S4-S5 carries out paving for mix asphalt concrete
And compacting；
S7, natural cooling, bitumen concrete to be mixed all after the completion of construction, its natural cooling can be opened after temperature is lower than 50 DEG C
Traffic is put, construction is completed.
2. the construction method of bituminous pavement as described in claim 1, it is characterised in that: carry out construction lofting in step sl
When, device for measuring force is installed on cord holder, and the pulling force for controlling reference line is greater than 800N.
3. the construction method of bituminous pavement as described in claim 1, it is characterised in that: carry out paving process in step s 4
In, the paving material of bitumen concrete is maintained between 125 DEG C~160 DEG C.
4. the construction method of bituminous pavement as described in claim 1, it is characterised in that: in step s 5, longitudinal progress is rolled,
It is adjacent to roll at least overlapping widths are as follows: two-wheel 30cm, two wheels are the half of the width of rear-wheel.
5. the construction method of bituminous pavement as described in claim 1, it is characterised in that: in step s 5, multiple pressure is mixed when completing
The temperature for closing bitumen concrete is not less than 90 DEG C, and the temperature of mix asphalt concrete is not less than 70 DEG C when final pressure is completed.
6. the construction method of bituminous pavement as described in claim 1, it is characterised in that: in step s 5, such as the temperature of seam crossing
Degree has been unable to meet compacting temperature requirement, and required compacting temperature should be had reached using the temperature that heater improves mix asphalt concrete
Degree, then until being compacted to seamless mark, otherwise, it is necessary to the mix asphalt concrete for not meeting temperature requirement be cut and spread again
It builds, and until being rolled by seamless mark jointly immediately.
7. the construction method of bituminous pavement as described in claim 1, it is characterised in that: when carrying out seam in step s 6, such as
Fruit is longitudinal cold joint, then need first to be dug along longitudinal direction with planer it is straight, if it is lateral cold joint, then need with joint-cutting machine-cut it is straight after
It paves again.
8. the construction method of bituminous pavement as described in claim 1, it is characterised in that: in step s 6, due to operating interruptions,
The end of material spreader has cooled down, and when resuming work within second day, end need to be made into one of transverse joint, transverse joint direction should be with paving
Build that direction is at a generally normal angle, transverse joint should all be staggered at least distance of 1m between connected level and adjacent stroke.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080066A (en) * | 2019-05-28 | 2019-08-02 | 青海省交通科学研究院 | A kind of highlands asphalt pavement construction method |
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| CN115305788A (en) * | 2022-07-21 | 2022-11-08 | 深圳市市政工程总公司 | Cement stabilized solid waste aggregate base layer construction method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080066A (en) * | 2019-05-28 | 2019-08-02 | 青海省交通科学研究院 | A kind of highlands asphalt pavement construction method |
| CN110725202A (en) * | 2019-10-23 | 2020-01-24 | 李寿莹 | Road and bridge pavement construction method |
| CN110820578A (en) * | 2019-11-15 | 2020-02-21 | 中交一公局第五工程有限公司 | Construction method for paving small-load steel structure bridge deck |
| CN113047109A (en) * | 2021-04-09 | 2021-06-29 | 广州市北二环交通科技有限公司 | Milling and re-paving construction process suitable for highway pavement |
| CN113322741A (en) * | 2021-04-20 | 2021-08-31 | 中国水利水电第九工程局有限公司 | Construction process of asphalt pavement in alpine region |
| CN115305788A (en) * | 2022-07-21 | 2022-11-08 | 深圳市市政工程总公司 | Cement stabilized solid waste aggregate base layer construction method |
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