CN102704380A - Construction method of highway asphalt pavement - Google Patents
Construction method of highway asphalt pavement Download PDFInfo
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- CN102704380A CN102704380A CN2012101812341A CN201210181234A CN102704380A CN 102704380 A CN102704380 A CN 102704380A CN 2012101812341 A CN2012101812341 A CN 2012101812341A CN 201210181234 A CN201210181234 A CN 201210181234A CN 102704380 A CN102704380 A CN 102704380A
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Abstract
The invention relates to a construction method of a highway asphalt pavement. The construction method is suitable for guaranteeing the highway quality and has long service life. The construction method comprises the following steps of: performing preliminary rolling by using a tire roller, i.e., rolling for two to three times by the tire roller following a paving machine, wherein the temperature of the pavement is 120-150 DEG C in the rolling process; and finishing final rolling by using a steel-wheel roller after preliminary rolling. In order to prevent tire adhesion, the temperature of the pavement is over 100 DEG C when the preliminary rolling is finished by the tire roller. Tire preliminary rolling is adopted; since the temperature of the pavement during preliminary rolling is high, the amplitude of tire kneading is high; and thus, the weight of the adopted tire roller can be properly reduced, and the rolling is only required to be performed for two to three times to meet the design requirements on compaction degree of the pavement. The rolling quality of the pavement is determined according to the temperature. Meanwhile, asphalt in materials can easily form a thick sealing oil film layer on the pavement, so that water, mud and air can be prevented from invasion, pavement damage by water is facilitated, and the durability of the pavement is improved.
Description
Technical field
The present invention relates to a kind of job practices of asphalt highway.
Background technology
Flexible pavement is various types of road surfaces of in the mineral material, mixing bitumen for road use material making.Asphalt binder has improved the ability of paving the way with pellet opposing driving and the infringement of natural cause road pavement, makes the few dirt, waterproof, durable in use of evenness of road surface.Therefore, flexible pavement is the high class pavement that a kind of quilt the most extensively adopts in the road construction.
Asphalt binder is bonded to integral body with the mineral pellet, gains in strength and strengthens the road surface and resist the ability that driving destroys, and the road surface is had a water resisting property.The bituminous material that is fit to the build road surface is mainly petroleum bitumen and coal tar pitch.
Bituminous mixture is paved on the road surface by paver, adopts road roller to carry out pavement compaction then; Pavement compaction divides first pressing, multiple pressure, final pressure three phases to carry out.The drop temperature of the processing of paver is generally 130-150 ℃.
The purpose of first pressing is leveling, stablizes compound, for multiple the pressure creates conditions.First pressing should roll immediately following behind the paver, and keeps short first nip length, makes surface compaction soon with this, reduces heat and scatters and disappears.First pressing is the basis of compacting bituminous mixture, and in the prior art, the vibratory roller (all being steel roller) that generally adopts light-duty steel cylinder road roller or cut out vibrating device rolls twice, and its linear pressure should not be less than 35N/M.And carry out first pressing when temperature is higher behind bituminous mixture laying, compacting temperature is confirmed through examination shop pressure testing according to bitumen consistency, road roller type, temperature, paving layer thickness, mix type.
And then carry out multiple pressure after the first pressing, multiple purpose of pressing is to make that compound is closely knit, stable, moulding, generally adopts heavy road roller (being generally rubber-tyred roller), and number of rolling is definite through pressure testing, and is no less than 4-6 time, meets the requirements of till the degree of compaction.
The purpose of final pressure is to eliminate the wheelmark that rolling wheel produces, and generally adopts the steel cylinder road roller.
The weak point of above-mentioned prior art is:
1, the steel wheel rolling road surface is adopted in first pressing, and watering in a large number causes temperature leak simultaneously;
When 2, adopting tire to carry out multiple pressure, the temperature of bituminous mixture is lower, is prone to cause bituminous mixture to be bonded on the tyre tread; Need to adopt diesel oil to clean tire, waste time and energy and waste diesel oil;
3, steel wheel can cause the passing of bituminous mixture during first pressing, and the place of turning back is prone to form the horizontal ridge, causes surface evenness not enough;
4, have vibrations during the steel wheel rolling road surface, cause the road surface basic forming, the amplitude of the rubbing effect that tire brings when pressing again is less, can't bring into play the rubbing effect of tire, causes the compactness on road surface not meet designing requirement;
The temperature of bituminous mixture is lower when 5, pressing again, and tire print is difficult for eliminating;
The temperature of bituminous mixture is lower when 6, pressing again, is difficult on the road surface, forming the sealing oil film.
The deficiency of said prior art causes the quality of existing asphalt highway often undesirable, and the application life of highway is shorter.
Summary of the invention
The technical problem that the present invention will solve provide a kind of step simple, be suitable for guaranteeing road quality and the application life job practices of long asphalt highway.
In order to solve the problems of the technologies described above; The invention provides a kind of job practices of asphalt highway, it comprises: adopt rubber-tyred roller to carry out first pressing, that is: rubber-tyred roller rolls 2-3 time immediately following behind the paver; And in the process of rolling, pavement temperature is 120-150 ℃; Adopt steel roller to accomplish final pressure after the first pressing, to eliminate the tire seal on the road surface.When first pressing, through the mode of adjustment rubber-tyred roller water tank volume or counterweight, the compacting weight that makes each tire of said rubber-tyred roller is the 1.8-2 ton.For preventing the tire sizing, the pavement temperature when adopting rubber-tyred roller to accomplish first pressing is more than 100 ℃, with the protected tyre sizing; The difference of the blowing pressure of each tire of said rubber-tyred roller is controlled in the 8-16Pa.
Technique scheme of the present invention is compared prior art and is had the following advantages: in the job practices of (1) asphalt highway of the present invention; Temperature is higher than 130 ℃ bituminous mixture and is paved after on the road surface by paver; Adopt rubber-tyred roller to carry out first pressing immediately; Because the temperature of charge of this moment is between 120-150 ℃; The road surface is suitable for through the amplitude of tire rubbing bigger, and the weight of the rubber-tyred roller that therefore adopts can suitably reduce, and the compacting weight of each tire gets final product (the tire compacting weight of rubber-tyred roller of the prior art is generally more than 2 tons) for the 1.8-2 ton; Rolling number of times also only needs 2-3 time, can satisfy the designing requirement of road surface compactness.Wherein, quality is rolled on temperature decision road surface.Temperature of charge is higher during the tire first pressing, so the pitch in the material forms thicker Seal Oil rete easily on the road surface, thereby can prevent sealing, mud and air intrusion, is beneficial to and prevents road surface damage by water evil, improves pavement durability; (2) among the present invention, adopt the tire first pressing, the sticking tire of bituminous mixture, the tire sizing is only relevant with temperature, and the temperature that needs only bituminous mixture is more than 100 ℃, and tire rolls just can not sizing.And in the prior art, when adopting tire to carry out multiple pressure step, to the tire watering, the temperature that causes bituminous mixture adopts tire to press again at 80-100 ℃ this moment, is easy to sizing.(3) among the present invention, temperature of charge is higher during the tire first pressing, is not prone to phenomenons such as material passing, cracking and segregation during the rolled asphalt compound, and turns back and a little do not swell, so be difficult for forming road surface Heng Geng, surface evenness is better.Rubber-tyred roller is in the process of rolling, and the tire tread road pavement has the rubbing effect, and on the road surface, forms closeer fine rule, line more carefully, close more, surface evenness, compactness are just good more.Road surface after the tire first pressing need not the repairing aspect, road surface not moisture (because no watering process).In addition, the tire first pressing is suitable for the cataclasm horizontal ridge because of paver leveling generation, also has and eliminates the pave spot that produces, the effect of pit, makes the road surface more smooth, attractive in appearance, is suitable for reducing the related work amount.The kneading action of rubber-tyred roller can be filled up the space, top layer with pitch rubbing to the top layer and form oil film, and to reach the sealing top layer, anti-sealing, mud and air are invaded.Help preventing road surface damage by water evil, improve pavement durability.(4) the present invention adopts tire to accomplish first pressing, is suitable for simplifying construction sequence, reduces the road surface and roll number of times, so can significantly reduce construction cost, accelerate construction progress, is beneficial to the raising pavement quality simultaneously.
The specific embodiment
The job practices of the asphalt highway of present embodiment comprises: adopt rubber-tyred roller to accomplish first pressing; That is: rubber-tyred roller rolls 2-3 time immediately following behind the paver; Specifically be that rubber-tyred roller is followed in the paver rear end about 30 meters and back and forth rolled with interior; To guarantee that in the process of rolling pavement temperature is 120-150 ℃; Adopt steel roller to accomplish final pressure after the first pressing immediately, the number of times that rolls of steel roller exceeds with the tire seal of eliminating on the road surface.
When first pressing, through modes such as adjustment rubber-tyred roller water tank volume or counterweights, the compacting weight that makes each tire of said rubber-tyred roller is the 1.8-2 ton.
For preventing the tire sizing, the pavement temperature when adopting rubber-tyred roller to accomplish first pressing is more than 100 ℃, with the protected tyre sizing.
The tire of no tyre surface radian can not be as the rolling of aspect material, and its reason is can not produce closeer lines in the process of rolling, and is easy to generate the tire vestige, can only be used for bottom, middle material rolls use.
During the tire first pressing, oil film roller tire pressure is real, the process of rubbing, squeezes the supreme aspect of rubbing to oil film.Oil film more than 100 ℃, is just squeezed the supreme aspect of rubbing by tire in the material temperature easily.During work, tire tread is two-sided irregular zigzag, squeezes the supreme aspect of rubbing to oil film.The concavo-convex place of compound aspect does not have corner angle, and is in the arc-shaped, is suitable for sealing aspect better.And in the prior art, when adopting tire to press again, material is warm below 100 ℃, the easiest tire sizing that causes.Add spray, wipe diesel oil, tire and aspect barrier film, oil film just squeeze and rub.The present invention adopts the tire first pressing, does not have the problem of tire sizing, and can practice thrift a large amount of scourings and use diesel oil every year; When cleaning the sizing on the road roller in addition, diesel oil is often trickled down to the road surface, is prone to the pitch oil film on dissolving road surface, thereby can influences workmanship.
Rubber-tyred roller the blowing pressure of tire when dispatching from the factory is set at 0.35MPa; During work; Adjust the blowing pressure of tire as required; Its adjusting range and will keep the blowing pressure basically identical of each tire of road roller between 0.2-0.8MPa, its difference should be controlled in the 8-16Pa.
Obviously, the foregoing description only be for clearly the present invention is described and is done for example, and be not to be qualification to embodiment of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (1)
1. the job practices of an asphalt highway is characterized in that comprising the steps:
Adopt rubber-tyred roller to carry out first pressing, that is: rubber-tyred roller rolls 2-3 time immediately following behind the paver, and in the process of rolling, pavement temperature is 120-150 ℃;
After accomplishing, first pressing adopt steel roller to accomplish final pressure;
When first pressing, the compacting weight of each tire of said rubber-tyred roller is the 1.8-2 ton;
Pavement temperature when adopting rubber-tyred roller to accomplish first pressing is more than 100 ℃;
The difference of the blowing pressure of each tire of said rubber-tyred roller is controlled in the 8-16Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101812341A CN102704380A (en) | 2010-11-28 | 2010-11-28 | Construction method of highway asphalt pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101812341A CN102704380A (en) | 2010-11-28 | 2010-11-28 | Construction method of highway asphalt pavement |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010561526.9A Division CN102011360B (en) | 2010-11-28 | 2010-11-28 | Construction method of highway asphalt pavement |
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| CN102704380A true CN102704380A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101812341A Pending CN102704380A (en) | 2010-11-28 | 2010-11-28 | Construction method of highway asphalt pavement |
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| CN (1) | CN102704380A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113370A (en) * | 2015-07-28 | 2015-12-02 | 安徽省新路建设工程集团有限责任公司 | Asphalt-pavement compacting construction method based on kneading compaction |
| CN112030657A (en) * | 2020-09-04 | 2020-12-04 | 中交一公局集团有限公司 | Asphalt mixture compacting process and pavement construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04203006A (en) * | 1990-11-30 | 1992-07-23 | Katsuyama Kensetsu Kogyo Kk | Method and apparatus for paving road |
| KR0135645B1 (en) * | 1995-07-29 | 1998-04-24 | 최훈 | Compaction method of joint area of asphalt pavement and concrete pavement |
| CN101532275A (en) * | 2009-04-10 | 2009-09-16 | 袁斌 | Bituminous pavement preventative regeneration and maintenance method |
| CN101570950A (en) * | 2009-06-03 | 2009-11-04 | 河南通和高速公路养护工程有限责任公司 | Asphalt cool recycled cement gravel mixed in place train and method for construction |
| CN101694083A (en) * | 2009-09-23 | 2010-04-14 | 中交二公局第六工程有限公司 | Express highway pavement asphalt concrete construction technique |
| CN101768912A (en) * | 2010-01-05 | 2010-07-07 | 江西赣粤高速公路股份有限公司 | Cold recycled asphalt mixture processing method for pavement spread |
-
2010
- 2010-11-28 CN CN2012101812341A patent/CN102704380A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04203006A (en) * | 1990-11-30 | 1992-07-23 | Katsuyama Kensetsu Kogyo Kk | Method and apparatus for paving road |
| KR0135645B1 (en) * | 1995-07-29 | 1998-04-24 | 최훈 | Compaction method of joint area of asphalt pavement and concrete pavement |
| CN101532275A (en) * | 2009-04-10 | 2009-09-16 | 袁斌 | Bituminous pavement preventative regeneration and maintenance method |
| CN101570950A (en) * | 2009-06-03 | 2009-11-04 | 河南通和高速公路养护工程有限责任公司 | Asphalt cool recycled cement gravel mixed in place train and method for construction |
| CN101694083A (en) * | 2009-09-23 | 2010-04-14 | 中交二公局第六工程有限公司 | Express highway pavement asphalt concrete construction technique |
| CN101768912A (en) * | 2010-01-05 | 2010-07-07 | 江西赣粤高速公路股份有限公司 | Cold recycled asphalt mixture processing method for pavement spread |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113370A (en) * | 2015-07-28 | 2015-12-02 | 安徽省新路建设工程集团有限责任公司 | Asphalt-pavement compacting construction method based on kneading compaction |
| CN112030657A (en) * | 2020-09-04 | 2020-12-04 | 中交一公局集团有限公司 | Asphalt mixture compacting process and pavement construction method |
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Application publication date: 20121003 |