CN110172888A - The construction method on the road surface highway SMA - Google Patents
The construction method on the road surface highway SMA Download PDFInfo
- Publication number
- CN110172888A CN110172888A CN201910523508.2A CN201910523508A CN110172888A CN 110172888 A CN110172888 A CN 110172888A CN 201910523508 A CN201910523508 A CN 201910523508A CN 110172888 A CN110172888 A CN 110172888A
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- Prior art keywords
- paver
- column
- highway
- time
- road surface
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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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/18—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
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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
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a kind of construction methods on the road surface highway SMA, and highway is divided into several segments and is laid with, comprising the following steps: S1, complete roadbed, rolled using heavy road roller, measure roadbed with three meters of ruler methods, the flatness for controlling roadbed is 8mm；S2, it paves for the first time: highway being divided into identical two column according to width and is laid with, asphalt filler is laid on roadbed by each column with the paver that a screed lengthens；It paves for the second time: highway width being divided into odd column and is laid with, be denoted as middle column and two sides column respectively, asphalt filler is laid on the road surface of the asphalt filler to pave for the first time by each column with a paver；S3, road surface are rolled；S4,50 DEG C are down to asphalt filler temperature hereinafter, forming the road surface SMA.The present invention, which has the effect of reducing, occurs crack probability at highway SMA pavement joint.
Description
Technical field
The present invention relates to road construction fields.It is more particularly related to a kind of construction on the road surface highway SMA
Method.
Background technique
Stone mastic asphalt (Stone Mastic Asphalt, abbreviation SMA), by asphalt binder and on a small quantity
Fiber stabilizer, fine aggregate and more amount the bitumastic of filler (miberal powder) composition be filled in the rough set of gap grading
Expect skeleton gap, organize integral asphalt, it have resistant to high temperatures, low-temperature stability, good water stability, well
Durability and function of surface (antiskid, track is small, flatness is high, noise is small, visibility good), nowadays transportation is increasingly
Prosperity, the transport frequency improve year by year, also higher and higher to the bearing capacity requirement of highway, although the high speed built now is public
Road road surface mostly uses the road surface SMA, and still, the construction process requirement of SMA is high, and construction method can the biggish wave of road pavement quality generation
Phenomena such as moving, being easy to appear pit slot, loose, peeling, crack, sink, the especially seam crossing on road surface.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of construction methods on the road surface highway SMA, have preferable compacting
The probabilistic effects to crack with reduction seam crossing.
In order to realize these purposes and other advantages according to the present invention, a kind of applying for the road surface highway SMA is provided
Highway is divided into several segments and is laid with by work method, comprising the following steps:
S1, roadbed treatment: completing roadbed, is rolled using heavy road roller, measures roadbed with three meters of ruler methods, controls roadbed
Flatness be 8mm；
S2, road surfacing: including paving and paving for the second time for the first time；
It paves for the first time: highway being divided into identical two column according to width and is laid with, one screed of each column
Asphalt filler is laid on roadbed by the paver of lengthening, and the paving material of asphalt filler controls between 170~175 DEG C, booth
Paving machine, which is stepped, to be laid with, and the travel speed of paver is 3m/min, and the screed height of paver is identical, is filled out to pitch
Material is cooled to 80 DEG C, is paved for the second time；
It paves for the second time: highway width being divided into odd column and is laid with, be denoted as middle column and two sides column respectively, often
Asphalt filler is laid on the road surface of the asphalt filler to pave for the first time by column with a paver, and paver is arranged in V-shape,
Paver one is denoted as positioned at the paver of middle column, is denoted as paver two positioned at the paver that two sides arrange, and paver one is located at most
The first lengthening section is added in front, the two sides of one screed section of foundation of paver, and the height of the first lengthening section bottom is lower than section of foundation
0.5~1cm, two screed of paver close to middle column side add the second lengthening section, the height of the second lengthening section bottom with
Section of foundation is concordant, and the second lengthening section paved surface is overlapped with the paved surface of the first lengthening section, paver two and one section of foundation of paver
Bottom level it is identical, the paving material of the second asphalt filler controls between 160~165 DEG C, paver stablize after traveling
Speed is 2m/min；
S3, road surface are rolled: cleaning asphalt filler surface irregularities, and middle column is divided into identical two column, makes each column covering drip
The seam crossing of green filler is rolled 2 times with double-steel wheeled vibratory roller with the speed of 25m/min, while pressing road with double-steel wheeled vibratory
Machine is rolled two sides column 2 times with the speed of 25m/min, and the temperature of asphalt filler is not less than 140 DEG C in roller compaction process, public according to high speed
The width on road is divided into identical multiple row, and each column uses a band tyre road roller to roll 2 times with the speed of 30m/min, each column
It is rolled 2 times with a double-steel wheeled vibratory roller with the speed of 30m/min again, each column uses a band tyre road roller again
It is rolled 1 time with the speed of 30m/min, the temperature of asphalt filler is not less than 130 DEG C in roller compaction process, according to the width of highway
Be divided into identical multiple row, rolled two sides column 2 times with double-steel wheeled vibratory roller with the speed of 40m/min, from two sides to center into
Capable to roll, adjacent two column roll 1/2 wheel width of band overlapping, and the temperature of asphalt filler is not less than 120 DEG C in roller compaction process；
S4,50 DEG C are down to asphalt filler temperature hereinafter, forming the road surface SMA；
Further, it is 30~50m that every section of highway, which is laid with range,.
Further, road bed is epoxy emulsion cement sand bed.
Further, the miberal powder in asphalt filler is levigate limestone, the miberal powder mesh of asphalt filler when paving for the first time
Number is 50 mesh or more, and the miberal powder mesh number of asphalt filler when paving for the second time is 200 mesh or more.
Further, when paving for the first time, the initial travel speed of paver is 1m/min, is 3m/min after stablizing.
Further, it after the completion of paving for the second time, carries out rolling for the first time in 5min.
The present invention is include at least the following beneficial effects: being divided into according to width highway when paving for the first time identical
Two column are laid with, and keep the expressway surface seam crossing that asphalt filler is formed when being laid with less, will high speed when paving for the second time
Highway width is divided into odd column and is laid with, the seam crossing that two column asphalt fillers are formed when middle column covering paves for the first time, booth
Paving machine one forms convex shape road surface when being laid with, and the lower polishing on convex shape road surface is located at whole road surface same by paver two
One height, seam crossing shift to install, and reduce the depth of seam, carry out being easier to make when a point column substep rolls in road roller road pavement
Asphalt filler is combined into entirety, and the probability that seam crossing cracks is reduced in later period use process.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is point structural schematic diagram for column that paves one of embodiment first time of the invention；
Fig. 2 is that the one of embodiment of the present invention paves point structural schematic diagram arranged for the second time；
Fig. 3 is that the one of embodiment of the present invention paves the positional structure schematic diagram of middle column and screed for the second time；
Fig. 4 is the pavement structure schematic diagram after the completion of the one of embodiment of the present invention paves for the second time；
Fig. 5 is that the one of embodiment of the present invention rolls a point structural schematic diagram for column for the first time；
Fig. 6 is the one of embodiment of the present invention second and third time rolls a point structural schematic diagram for column.
Appended drawing reference are as follows: roadbed 1；Pave asphalt filler layer 2 for the first time；Pave asphalt filler layer 3 for the second time；Paver is pressed
Plate 4.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification
Text can be implemented accordingly.
The present invention provides a kind of highway SMA construction method on road surface, and highway is divided into several segments and is laid with,
Every section be laid with the following steps are included:
S1, the processing of roadbed 1: being completed roadbed 1, rolled using heavy road roller, measures roadbed 1, control with three meters of ruler methods
The flatness of roadbed 1 is 8mm；
S2, road surfacing: including paving and paving for the second time for the first time；
It paves for the first time: highway being divided into identical two column according to width and is laid with, as shown in Figure 1, each column is used
Asphalt filler is laid on roadbed 1 by one paver, and the paving material of asphalt filler controls between 170~175 DEG C, is paved
Machine, which is stepped, to be laid with, and the paver adjacent when operating that paves is unaffected, and the travel speed of paver is 2m/min, booth
The screed height of paving machine is identical, is paved into the identical road surface of apparent height, is cooled to 80 DEG C to asphalt filler, carries out second and spreads out
Paving；
It paves for the second time: highway width being divided into odd column and is laid with, be denoted as middle column and two sides column respectively, such as
Shown in Fig. 2, asphalt filler is laid on the road surface of the asphalt filler to pave for the first time by each column with a paver, and paver is in
V-shape arrangement is denoted as paver one positioned at the paver of middle column, is denoted as paver two positioned at the paver that two sides arrange, paves
Machine one is located at forefront, and conducive to paver two when being operated, the road surface formed to the first lengthening section is filled polishing, spreads out
The first lengthening section is added in the two sides of one screed section of foundation of paving machine, the height of the first lengthening section bottom lower than section of foundation 0.5~
1cm, as shown in figure 3, the seam crossing depth as shallow for the asphalt filler for being laid with paver one and paver two, in later period roller compaction process
In be easier to be combined together, two screed of paver close to middle column side add the second lengthening section, the second lengthening section bottom
Height it is concordant with section of foundation, the second lengthening section paved surface is overlapped with the first lengthening section paved surface, paver two and paver one
The bottom level of section of foundation is identical, and one first lengthening section of paver is laid with the road surface polishing to be formed, makes finally formed road surface
Positioned at sustained height, the paving material of the second asphalt filler is controlled between 160~165 DEG C, and the traveling after paver is stablized is fast
Degree is 2m/min, after the completion of paving for the second time, forms road surface as shown in Figure 4；
S3, road surface are rolled: cleaning asphalt filler surface irregularities, middle column are divided into identical two column, as shown in figure 5, making
Each column covers the seam crossing of asphalt filler, is rolled 2 times with double-steel wheeled vibratory roller with the speed of 25m/min, makes seam crossing
Asphalt filler is more fully combined into entirety, while rolling two sides column 2 with double-steel wheeled vibratory roller with the speed of 25m/min
Secondary, the temperature of asphalt filler is not less than 140 DEG C in roller compaction process, is divided into identical multiple row, such as Fig. 6 according to the width of highway
Shown, each column uses a band tyre road roller to roll 2 times with the speed of 30m/min, and each column uses a double-steel wheeled vibratory again
Road roller is rolled 2 times with the speed of 30m/min, and each column uses a band tyre road roller to grind with the speed of 30m/min again
Pressure 1 time, keeps compactness of pavement more preferable, and the temperature of asphalt filler is not less than 130 DEG C in roller compaction process, according to the width of highway
It is divided into identical multiple row, as shown in fig. 6, being rolled two sides column 2 times with double-steel wheeled vibratory roller with the speed of 40m/min, from two
Lateral center is rolled, and adjacent 1/2 wheel of band overlapping that rolls is wide, and rolling road surface is made to keep smooth, asphalt filler in roller compaction process
Temperature be not less than 120 DEG C；
S4,50 DEG C are down to asphalt filler temperature hereinafter, forming the road surface SMA.
In the above-mentioned technical solutions, roadbed 1 is first completed, road surfacing is carried out after 1 flatness of roadbed is up to standard, is spread out for the first time
The paver to pave includes the lengthening section of screed section of foundation and two sides, make road surface be laid with when asphalt filler formed connect
Less at seam, an only seam crossing is divided into odd column when paving for the second time, is denoted as middle column and two sides column, middle column respectively
The seam crossing that two column asphalt fillers are formed when covering paves for the first time, the road surface that paver one is paved into are in convex shape, make paver
The seam crossing depth as shallow of one asphalt filler being laid with paver two, is easier to be combined together, pave in later period roller compaction process
Machine two is identical as the bottom level of one section of foundation of paver, and one first lengthening section of paver is laid with the road surface polishing to be formed, is made
The road surface that asphalt filler is formed is located at sustained height, carries out a point column substep with road roller road pavement and rolls, rolls covering for the first time
Pave the seam to be formed for the second time, and the asphalt filler of seam crossing is made more fully to be combined into entirety, and second using wheel tire pressure road
Machine is rolled, and keeps the compactness on road surface more preferable, is rolled for the third time using double-steel wheeled vibratory roller, makes the smooth of road surface
Degree is more preferable, after the completion of construction, detects to the seam crossing on the road surface SMA, and the detection method of the anti-crack ability on road surface is by " highway drip
Green road surface waterproof crack-resistant layer is designed and constructed technical specification " (DB13/T 1506-2012) detected, and the results are shown in Table 1.
Table 1
Flatness, transverse slope, the compactness of SMA bituminous pavement meet the requirements, and under low temperature condition, pitch is easy to shrink,
Seam crossing easily cracks, and cleavage strength, freeze thawing retained strength are shown than the data result of, low-temperature impact test, the asphalt road
The seam crossing in face has preferable anti-low-temperature cracking ability.
In another technical solution, it is 30~50m, the construction temperature of asphalt filler that every section of highway, which is laid with range,
More demanding, short distance construction is conducive to control construction parameter.
In another technical solution, 1 surface of roadbed is epoxy emulsion cement sand bed, in the mistake that asphalt filler is laid with
Cheng Zhong, is conducive to paver movement, and the shiny surface being formed simultaneously also is conducive to the water that bitumen layer is penetrated into discharge.
In another technical solution, the miberal powder in asphalt filler is levigate limestone, pitch when paving for the first time
The miberal powder mesh number of filler is 50 mesh or more, and the miberal powder mesh number of asphalt filler when paving for the second time is 200 mesh or more, and coarse mineral powder is conducive to
The infiltration of moisture, mineral fine can fill gap, and moisture is made to be easier to flow to highway edge.
In another technical solution, when paving for the first time, the initial travel speed of paver is 1m/min, is after stablizing
3m/min。
In another technical solution, after the completion of paving for the second time, carries out rolling for the first time in 5min, pitch is kept to fill out
The temperature of material is within the temperature range of signal rolls.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and embodiment shown and described herein and legend.
Claims (6)
1. the construction method on the road surface highway SMA, is divided into several segments for highway and is laid with, which is characterized in that including
Following steps:
S1, roadbed treatment: completing roadbed, is rolled using heavy road roller, measures roadbed with three meters of ruler methods, controls the flat of roadbed
Whole degree is 8mm；
S2, road surfacing: including paving and paving for the second time for the first time；
It paves for the first time: highway being divided into identical two column according to width and is laid with, each column is lengthened with a screed
Paver asphalt filler is laid on roadbed, the paving material of asphalt filler controls the paver between 170~175 DEG C
It is stepped and is laid with, the travel speed of paver is 3m/min, and the screed height of paver is identical, cold to asphalt filler
But it to 80 DEG C, is paved for the second time；
It paves for the second time: highway width being divided into odd column and is laid with, be denoted as middle column and two sides column respectively, each column is used
Asphalt filler is laid on the road surface of the asphalt filler to pave for the first time by one paver, and paver is arranged in V-shape, is located at
The paver of middle column is denoted as paver one, is denoted as paver two positioned at the paver that two sides arrange, and paver one is located at forefront,
The first lengthening section is added in the two sides of one screed section of foundation of paver, the height of the first lengthening section bottom lower than section of foundation 0.5~
1cm, two screed of paver add the second lengthening section, the height and section of foundation of the second lengthening section bottom close to the side of middle column
Concordantly, the second lengthening section paved surface is overlapped with the paved surface of the first lengthening section, the bottom of paver two and one section of foundation of paver
Highly identical, the paving material of the second asphalt filler controls between 160~165 DEG C, and the travel speed after paver is stablized is
2m/min；
S3, road surface are rolled: cleaning asphalt filler surface irregularities, and middle column is divided into identical two column, fills out each column covering pitch
The seam crossing of material is rolled 2 times with double-steel wheeled vibratory roller with the speed of 25m/min, at the same with double-steel wheeled vibratory roller with
The speed of 25m/min rolls two sides column 2 times, and the temperature of asphalt filler is not less than 140 DEG C in roller compaction process, according to highway
Width is divided into identical multiple row, and each column uses a band tyre road roller to roll 2 times with the speed of 30m/min, and each column is used again
One double-steel wheeled vibratory roller is rolled 2 times with the speed of 30m/min, each column use again a band tyre road roller with
The speed of 30m/min rolls 1 time, and the temperature of asphalt filler is not less than 130 DEG C in roller compaction process, according to the width of highway point
It at identical multiple row, is rolled two sides column 2 times with double-steel wheeled vibratory roller with the speed of 40m/min, is carried out from two sides to center
It rolls, adjacent to roll 1/2 wheel width of band overlapping, the temperature of asphalt filler is not less than 120 DEG C in roller compaction process；
S4,50 DEG C are down to asphalt filler temperature hereinafter, forming the road surface SMA.
2. the construction method on the road surface highway SMA as described in claim 1, which is characterized in that every section of highway is laid with
Range is 30~50m.
3. the construction method on the road surface highway SMA as described in claim 1, which is characterized in that road bed is epoxy cream
Liquid cement sand bed.
4. the construction method on the road surface highway SMA as described in claim 1, which is characterized in that the miberal powder in asphalt filler
For levigate limestone, the miberal powder mesh number of asphalt filler when paving for the first time is 50 mesh or more, asphalt filler when paving for the second time
Miberal powder mesh number be 200 mesh more than.
5. the construction method on the road surface highway SMA as described in claim 1, which is characterized in that when paving for the first time, pave
The initial travel speed of machine is 1m/min, is 3m/min after stablizing.
6. the construction method on the road surface highway SMA as described in claim 1, which is characterized in that after the completion of paving for the second time,
It carries out rolling for the first time in 5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910523508.2A CN110172888A (en) | 2019-06-17 | 2019-06-17 | The construction method on the road surface highway SMA |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910523508.2A CN110172888A (en) | 2019-06-17 | 2019-06-17 | The construction method on the road surface highway SMA |
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| CN110172888A true CN110172888A (en) | 2019-08-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108413A (en) * | 2021-12-04 | 2022-03-01 | 广东盈辉建设工程有限公司 | Method for improving pavement construction flatness |
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| CN114108413A (en) * | 2021-12-04 | 2022-03-01 | 广东盈辉建设工程有限公司 | Method for improving pavement construction flatness |
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