CN101676492A - Method for repairing asphalt pavement cracks - Google Patents
Method for repairing asphalt pavement cracks Download PDFInfo
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- CN101676492A CN101676492A CN200810222642A CN200810222642A CN101676492A CN 101676492 A CN101676492 A CN 101676492A CN 200810222642 A CN200810222642 A CN 200810222642A CN 200810222642 A CN200810222642 A CN 200810222642A CN 101676492 A CN101676492 A CN 101676492A
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Abstract
The invention discloses a method for repairing asphalt pavement cracks, comprising the following steps: a. opening a trench: setting the trench size according to the crack size and opening the trench;b. cleaning the trench: cleaning disintegrating slags in the trench and dust at the periphery of the trench after finishing opening the trench; c. pouring a crack: pouring cold crack filling materialin the trench, and performing vibration operation on the cold crack filling material after crack pouring; d. filling materials: filling joint stones in the trench and performing vibration compactionoperation on the stones until the stones after vibration and compaction in the trench level with the pavement; and e. curing. By using the method in the invention, asphalt pavement cracks can be effectively repaired by cold-patch notching and vibration, the cracks and gaps at the periphery thereof can be completely closed, the materials in the trench can be integrated with the original asphalt pavement after repairing, thus having high strength, resisting water encroachment thoroughly, improving the service life of the asphalt pavement remarkably and saving investment on whole-life maintenancecosts of the asphalt pavement greatly.
Description
Technical field
The present invention relates to traffic route maintenance field, particularly a kind of method of repairing asphalt pavement cracks.
Background technology
Flexible pavement is mated formation and is finished open to traffic after a period of time, the crack can occur under the effect of various factors.These cracks such as untimely punishment along with constantly entering of moisture, will make among Fig. 1 basic unit under the surface layer even roadbed softening, cause the road surface bearing capacity to descend, and produce purt slurry, check crack, depression, faulting of slab ends, thereby quicken the destruction of road pavement.
Prior art mainly is divided into two kinds of the hot method cementation of fissures and the cold process cementation of fissures to the repairing in crack.The used gap-grouting material of the hot method cementation of fissures is solid or thick liquid at normal temperatures, directly the cementation of fissures needs the special firing equipment of configuration that gap-grouting material is heated in advance, and gap-grouting material need be heated to more than 150 ℃ usually, viscosity just can pour into the crack after obviously reducing.After pouring into, along with the reduction of temperature, the viscosity of material will sharply increase again, be difficult to be penetrated in the flexible pavement of both sides, crack, can't form one with old flexible pavement, and bad adhesion has not only increased the repairing cost but also increased repair procedure.And the both sides, crack after the repairing often microcrack just occurs once more less than half a year, cause water destruct.As seen, existing hot method Slit-pouring Technology is repaired the cost height, the repair procedure complexity, and repair efficiency is not good.
Compare with the hot method cementation of fissures, the used gap-grouting material of the cold process cementation of fissures is a mulseal, and mulseal need not heating before use, and it is low to have normal temperature viscosity, good fluidity, and surface tension is little, is easy to advantages such as infiltration, is desirable gap-grouting material.But the existing cold process cementation of fissures generally adopts the technology that manually directly pours into, and has significant limitation and deficiency.At first, prior art can only be repaired for the slight crack of crack width＜3 millimeter; Secondly, owing to directly mulseal is poured into the crack, the amount of pouring into of mulseal is little, can't make mulseal be full of whole crack and peripheral space thereof, does not reach the purpose in complete sealed fracture and peripheral space; They are three years old, owing to be the simple cementation of fissures, mulseal descends the moving speed of seepage flow limited at short notice, often after 24 hours even longer time, the height of material just can obviously reduce in the seam, and over a period to come, prolongation along with the time, the height of material can continue to reduce in the seam, and therefore, the flexible pavement after the existing cold process cementation of fissures punishment often will the crack occur at the place, crack soon once more after maintenance; Its four, the intensity of gap-grouting material is far below the asphalt surface course material, therefore, the crack after the repairing often occur the spring mend the autumn split, the autumn mends the winter and splits, service time is short, needs repeatedly to repair the phenomenon that the life-cycle maintenance costs is high.As seen, existing cold process Slit-pouring Technology, repair procedure is too simple, can not bring into play the performance advantage of emulsified bituminous materials, and repair efficiency is poor, and the maintenance of flexible pavement life-cycle drops into high.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of repairing asphalt pavement cracks, and this method can be carried out cold process to asphalt pavement crack effectively and be repaired.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of method of repairing asphalt pavement cracks, this method may further comprise the steps:
A, fluting: according to flaw size the fluting size is set, the operation of slotting;
B, clear groove: disintegrating slag and the cleaning of the dust around the groove that fluting is finished in the pit is clean;
C, the cementation of fissures: cold-penetration is stitched material pour in the groove, behind the filling groove cold-penetration seam material is vibrated operation;
D, filler: filling joint filling building stones and building stones are carried out vibratory compaction operation in groove, the building stones in groove after the jolt ramming are with till the road surface flushes;
E, health.
During the described flaw size of step a 〉=1 millimeter, the described fluting that is provided with is of a size of 10～20 mm wides, 20～40 millimeters deep.
Used instrument is a brill formula groover during the described fluting operation of step a.
Around the described groove of step b is in 10～50 cm range.
The instrument that the described clear groove of step b is used is portable hair-dryer.
The described cementation of fissures of step c and described vibration operation is divided into twice to be carried out, and step is: for the first time cold-penetration is stitched material and irritate half place to the groove height, to pouring into the cold-penetration seam material vibrating 5～10 minutes in the groove; Pour into for the second time cold-penetration seam material, when gap-grouting material is lower than 2～5 millimeters on road surface, material vibrating was made it to permeate in 3～5 minutes enrich pavement crack and peripheral space thereof.
The described cold-penetration seam of step c material is a mulseal.
The described joint filling building stones of steps d are the basalt building stones of 3～15 millimeters of particle diameters, building stones mud content≤1%, building stones particle diameter qualification rate 〉=80%.
The used instrument of the operation of vibration described in step c and the steps d is an immersion vibrator.
The described conditioned time of step e is 15～30 minutes.
As seen from the above technical solutions, the method of repairing asphalt pavement cracks of the present invention, the fluting operation has at first been carried out in the crack, carried out clear groove operation in the groove behind the groove to ending afterwards, in groove, carry out the cementation of fissures and filler then successively, and adopted immersion vibrator after the cementation of fissures and filler, respectively material to be carried out mechanical oscillation, therefore, using this method can repair slot effectively cold-patch vibration of the crack that needs are punished, make crack and peripheral space thereof closed fully, and make the crack after the repairing that the intensity suitable with the protobitumen road surface be arranged, complete and protobitumen road surface forms one, thereby resist rainwater effectively, the destruction of external cause road pavement such as vehicle significantly improves application life on road surface.
Description of drawings
Fig. 1 is existing generalized section.
Fig. 2 is a cross-sectional view of the present invention.
The specific embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below enumerate embodiment, the present invention is described in further detail.
In order to improve the repair efficiency of asphalt pavement crack effectively, improve the application life of flexible pavement, method of the present invention is when handling asphalt pavement crack, at first described crack has been carried out the operation of fluting operation, secondly, behind fluting, carried out clear groove respectively, the vibration cementation of fissures, jolt-packing and health operation, by this method sealed fracture and peripheral space thereof fully, and make the crack after the repairing that the intensity suitable with the protobitumen road surface be arranged, complete and protobitumen road surface forms one, in the application life of improving flexible pavement effectively, saves its life-cycle maintenance and drops into.
Fig. 2 is a cross-sectional view of the present invention.As shown in Figure 2, to the crack slot finish after, carry out in the groove of cross-notching to finish the cementation of fissures and filler the operation.
Present embodiment is as follows to the step that asphalt pavement crack adopts the vibration of fluting cold-patch to repair:
1, fluting.
Fluting for the asphalt pavement crack setting of flaw size 〉=1 millimeter in the present embodiment is of a size of 10～20 mm wides, 20～40 millimeters deep, and used grooving tool is a brill formula groover during fluting operation.Use before the brill formula groover, should satisfactory drill bit be installed in advance according to groove width, and regulate the groover groove depth, could begin the operation of slotting.
Wherein, described brill formula groover be a kind of can make that the crack enlarges mill machine clearly.This fluting function to new cement pavement or flexible pavement slit enlarge, mill clearly, operation such as cold bonding, or during at old maintenance of surface, can follow the tracks of irregular cracks, utilize special rotary drilling-head and special lift installation, can be implemented in former crack, according to design size, efficiently enlarge, when clearing up, road pavement does not cause new destruction.
2, clear groove.
Thoroughly cleaning is clean with the dust in 10～50 cm range around disintegrating slag in the groove and the groove with portable hair-dryer.
3, the cementation of fissures.
At twice cold-penetration being stitched material pours in the groove, for the first time cold-penetration is stitched material and irritate half place to the groove height, because the cold-penetration that adopts in present embodiment seam material flowability is good, so vibrate 5～10 minutes back and forth with immersion vibrator, cold-penetration seam material can be seeped into down in crack, bottom, fluting place among Fig. 2 and the peripheral space thereof apace; Make it on the other hand under the effect of external force, to be full of crack and peripheral space thereof densely, thereby make crack and peripheral space thereof closed fully, and saved material self and flow and be full of the time in crack.Because cold-penetration seam the following of material oozes, the gap-grouting material liquid level is descended, need carry out the cementation of fissures operation second time.In groove, pour into for the second time cold-penetration seam material and be lower than 2～5 millimeters on road surface until gap-grouting material, still with inserting vibrator material is vibrated 3～5 minutes back and forth, the purpose of this operation also is to enrich crack and peripheral space and saving cementation of fissures time for cold-penetration seam material is permeated more up hill and dale.
By this twice vibration cementation of fissures, cold-penetration seam material can ooze down to crack and peripheral space thereof fully, and be full of crack and peripheral space thereof very densely, prevent to subside owing to cementation of fissures leakiness causes, can pavement patching ground is better more thorough, thus saved owing to often repair the loss of the resources of being brought such as human and material resources.
In the present embodiment, adopted the operation of twice cementation of fissures vibration, be full of crack and peripheral space thereof densely, then can only carry out a cementation of fissures vibration operation if a cementation of fissures vibration just can be satisfied cold-penetration seam material; If after twice cementation of fissures operation, the liquid level of gap-grouting material descends still clearly, also can adopt twice above cementation of fissures vibration operation.
The cold-penetration seam material that present embodiment adopts is a mulseal.
4, filler.
As can be seen from Figure 2, also need in groove, evenly to clog building stones after the cementation of fissures.After building stones are inserted,, adopt immersion vibrator with building stones jolt ramming for cold-penetration seam material in building stones and the step 3 being combined and increasing the compactness of building stones in the groove.Because the building stones inserted can sink under the vibration effect of immersion vibrator, therefore, need repeat described filling and jolt ramming operation 2～3 times, until the building stones of inserting closely knit and after described building stones are by jolt ramming with till the road surface flushes.At this moment, be to be the building stones of cementing agent in the groove with cold-penetration seam material with being full of, promptly clogging building stones is skeletons of whole groove.
In step 3, the purpose of the cementation of fissures is for cold-penetration seam material is oozed down fully to the crack and peripheral space thereof at unslotted place, filler then is for building stones can be covered with in groove fully densely, the building stones of inserting in the groove are cementing agent with the cold-penetration seam material that is full of in the step 3 in the groove, thereby can further improve the compactedness of building stones in the groove.
The filling building stones that present embodiment adopted are the basalt building stones of 3～15 millimeters of particle diameters, its building stones mud content≤1%, building stones particle diameter qualification rate 〉=80%.
Immersion vibrator described in the cementation of fissures and the filler mainly is suitable for the closely knit construction of concrete vibration of 2-3 grating, the material that comes in the vibra shoot to be added with it in the present embodiment is to realize complete sealed fracture and peripheral space thereof, and making the crack after the repairing that the intensity suitable with the protobitumen road surface be arranged, complete and protobitumen road surface forms one.
5, health.
After treating filler, with the disintegrating slag on the road surface cleaning during one section of clean and health and after, but open to traffic, general conditioned time is about 15～30 minutes, the concrete open to traffic time can be grasped flexibly according to the temperature situation.
Adopted in the present embodiment to asphalt pavement crack slot, clear groove, twice vibration cementation of fissures and jolt-packing, carry out the method for health at last, be a kind of automaticity height, good water-proof effect, the asphalt pavement crack cold-patch vibration patching of intensity height, long service life is repaired in the crack, can reduce the loss of the human and material resources that caused in traffic route maintenance field etc. to greatest extent, the life-cycle maintenance of having saved flexible pavement drops into.
Being preferred embodiment of the present invention only below, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of method of repairing asphalt pavement cracks is characterized in that, this method may further comprise the steps:
A, fluting: according to flaw size the fluting size is set, the operation of slotting;
B, clear groove: disintegrating slag and the cleaning of the dust around the groove that fluting is finished in the pit is clean;
C, the cementation of fissures: cold-penetration is stitched material pour in the groove, behind the filling groove cold-penetration seam material is vibrated operation;
D, filler: filling joint filling building stones and building stones are carried out vibratory compaction operation in groove, the building stones in groove after the jolt ramming are with till the road surface flushes;
E, health.
2, the method for claim 1 is characterized in that, during the described flaw size of step a 〉=1 millimeter, the described fluting that is provided with is of a size of 10～20 mm wides, 20～40 millimeters deep.
3, the method for claim 1 is characterised in that, used instrument is a brill formula groover during the described fluting operation of step a.
4, the method for claim 1 is characterized in that, is in 10～50 cm range around the described groove of step b.
5, the method for claim 1 is characterized in that, the instrument that the described clear groove of step b is used is portable hair-dryer.
6, the method for claim 1 is characterized in that, the described cementation of fissures of step c and described vibration operation is divided into twice to be carried out, and step is: for the first time cold-penetration is stitched material and irritate half place to the groove height, to pouring into the cold-penetration seam material vibrating 5～10 minutes in the groove; Pour into for the second time cold-penetration seam material, when gap-grouting material is lower than 2～5 millimeters on road surface, material vibrating was made it to permeate in 3～5 minutes enrich pavement crack and peripheral space.
As claim 1 or 6 described methods, it is characterized in that 7, the described cold-penetration seam of step c material is a modified emulsifying asphalt.
8, the method for claim 1 is characterized in that, the described joint filling building stones of steps d are the basalt building stones of 3～15 millimeters of particle diameters, building stones mud content≤1%, building stones particle diameter qualification rate 〉=80%.
9, the method for claim 1 is characterized in that, the used instrument of the described vibration operation of step c and steps d is an immersion vibrator.
10, the method for claim 1 is characterized in that, the described conditioned time of step e is 15～30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102226420A CN101676492B (en) | 2008-09-19 | 2008-09-19 | Method for repairing asphalt pavement cracks |
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| CN2008102226420A CN101676492B (en) | 2008-09-19 | 2008-09-19 | Method for repairing asphalt pavement cracks |
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| CN101676492A true CN101676492A (en) | 2010-03-24 |
| CN101676492B CN101676492B (en) | 2011-01-12 |
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| CN2008102226420A Expired - Fee Related CN101676492B (en) | 2008-09-19 | 2008-09-19 | Method for repairing asphalt pavement cracks |
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| CN104480844A (en) * | 2014-12-15 | 2015-04-01 | 中南林业科技大学 | Method for repairing crack of asphalt concrete pavement |
| CN105332329A (en) * | 2015-11-17 | 2016-02-17 | 江苏中路工程技术研究院有限公司 | Pavement crack disposal structure and technology |
| CN106012782A (en) * | 2016-06-02 | 2016-10-12 | 潍坊学院 | Pavement patching method and device |
| CN106363811A (en) * | 2015-07-21 | 2017-02-01 | 上海坚睿实业有限公司 | Vibration device for stone crack repair |
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| DE19946144A1 (en) * | 1999-09-27 | 2001-03-29 | Siegfried Neis | Stabilization of bitumen and asphalt surfaces in areas exposed to water, comprises cleaning edges of cracks, applying polyurethane filling compound and stone particles, allowing to harden, then applying polysulfide composition |
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| CN1629405B (en) * | 2004-10-22 | 2010-11-10 | 深圳市魁道道路用材技术开发有限公司 | Method for repairing crack on asphalt road pavement |
| CN1710205A (en) * | 2005-06-28 | 2005-12-21 | 邓敬森 | Bituminous pavement top-crack or settlement treating method |
| KR100708372B1 (en) * | 2006-10-13 | 2007-04-18 | 이순익 | Method and apparatus for regenerating of pavement |
| CN100516365C (en) * | 2007-02-06 | 2009-07-22 | 高强 | Process of repairing pit in asphalt road |
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