CN105625150A - Method for repairing boundary and reinforcing for bituminous pavement pit slot - Google Patents
Method for repairing boundary and reinforcing for bituminous pavement pit slot Download PDFInfo
- Publication number
- CN105625150A CN105625150A CN201511018615.8A CN201511018615A CN105625150A CN 105625150 A CN105625150 A CN 105625150A CN 201511018615 A CN201511018615 A CN 201511018615A CN 105625150 A CN105625150 A CN 105625150A
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- Prior art keywords
- border
- layer
- repair
- woven fabrics
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0966—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving
Abstract
The invention discloses a method for repairing boundary and reinforcing for a bituminous pavement pit slot, comprising the following steps: after excavating and clearing up a pit slot in the bituminous pavement, backfilling a repair material to the pit slot, wherein a seam formed on the road surface is called as a repair boundary; firstly painting a layer of binding agent to the repair boundary, then paving a layer of non-woven fabric to the binding agent and covering the repair boundary, and finally painting a layer of bitumen on the non-woven fabric and spreading a layer of macadam, wherein the distances from two sides of the non-woven fabric to the repair boundary are both longer than 5cm, and the cover area of the binding agent at the lower layer of the non-woven cloth and the cover area of the bitumen at the upper layer of the non-woven cloth are both larger than the cover area of the non-woven cloth. The method can effectively prolong the service life of the bituminous concrete pavement after pit slot repair and is applicable to various pit slot repair boundaries of the bituminous concrete surface layer.
Description
Technical field
The present invention relates to a kind of method that asphalt pavement pit repairs border reinforcement, in Road maintenance engineering technology.
Background technology
Hole groove is the most common disease type of bituminous pavement, drastically influence the use safety of bituminous pavement and work-ing life. The hole groove of bituminous pavement is mainly dug out and removes after totally by the current method for asphalt pavement pit reparation, backfills repair materials, the seam formed at road table be called and repair border in the groove of hole.
After asphalt pavement pit is repaired, man-made further destroy mainly contains two kinds of forms, and one is that repair materials destroys, and another repairs border to split. The former is mainly due to the poor-performing of repair materials itself, and this kind of situation is more common in materials such as adopting prefabricated bituminous concrete blocks to the interim process of hole groove. The latter is then the most common failure mode run into after the hole groove reparation of actual road surface.
Repairing the destruction that border occurs after asphalt pavement pit reparation is a kind of comparatively complicated phenomenon, and initial scholar thinks this kind of collapse mode, and mainly cohesive strength between repair materials and former ground surface material is inadequate. Get more and more along with to the observation of this kind of collapse mode, practitioner finds gradually, larger difference is all there is in old ground surface material and new repair materials in modulus and degree of aging, this makes the performance degradation speed in face, old road far faster than repair materials, thus cause face, old road to be border that new road surface contacts by occur gradually after power loose, come off, form weak boundary, as shown in Figure 1. When old ground surface material border loose to a certain extent time, under layer table action of pulling stress, crack will be produced. This destruction makes hole groove repair bigger and bigger, becomes a persistent ailment in asphalt pavement conserving reparation.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of asphalt pavement pit to repair the method for border reinforcement, the interface stressing conditions between repair materials and protobitumen ground surface material after asphalt pavement pit reparation can be improved, thus extend the life-span of reparation.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
Asphalt pavement pit repairs a method for border reinforcement, is dug out by the hole groove of bituminous pavement and removes after totally, backfills repair materials, the seam formed at road table be called and repair border in the groove of hole; First on reparation border, a layer binder is brushed, then layer of non-woven fabric is routed on binding agent and covers and repair border, last brushing one layer of pitch on non-woven fabrics also spreads cloth one layer of rubble, the distance that two lateral extents of non-woven fabrics repair border is all greater than 5cm, and under non-woven fabrics, the area coverage of layer binder and the area coverage of non-woven fabrics upper strata pitch are all greater than the area coverage of non-woven fabrics.
The main purpose that the first step is implemented is as the binding agent between upper strata non-woven fabrics and lower floor's bituminous concrete, simultaneously also as interface water-resisting agent, prevents moisture from entering the old and new and repairs interface. Therefore, require that the specification of binding agent is: 25 DEG C of condition Tensile strength are not less than 6MPa, under 25 DEG C of conditions, elongation at break is not less than 80%, 20 DEG C and when 75 �� of angles of shear slip resistance be not less than 1.5MPa, and the cohesive strength between lower floor's bituminous concrete is not less than 3MPa.
Non-woven fabrics is bonded in reparation border surface by the 2nd step, and its main purpose is using non-woven fabrics as power transmission device, transmits the tensile stress between repair materials and protobitumen ground surface material, reduces the tensile stress repairing interface; Meanwhile, owing to non-woven fabrics has certain area, former layer table pulling force can being decomposed into even distributed force and act on both sides, interface, much slower interface is by power, thus plays the effect extending interface work-ing life. , it is desired to the specification of non-woven fabrics is: water-intake rate is not more than 0.3%, therefore less than 200 DEG C are not out of shape, and ultimate strength is not less than 19N, and thickness is not more than 3mm.
The main effect of the 3rd step is protection non-woven fabrics, under avoiding it to act directly on environment and load. Consider attractive in appearance simultaneously, adopt pitch rubble to carry out surface treatment, basically identical with the color on protobitumen road surface. Therefore, described pitch without particular requirement, generic media pitch or modifying asphalt all can, the specification of described rubble is: maximum particle diameter is within the scope of 1.18��2.36mm, and crushed stone spreading amount is 2.0��4.0kg/m2��
Useful effect: asphalt pavement pit provided by the invention repairs the method for border reinforcement, after groove reparation border, bituminous concrete hole is carried out reinforcement, another side on border can be delivered to uniformly by non-woven fabrics in the power suffered by side, new old asphalt pavement border, much slower border is by power, thus reach reinforcement bituminous concrete hole groove and repair border, extend the effect in pit repairing life-span.
Accompanying drawing explanation
Fig. 1 for backfilling road surface structural representation after repair materials in the groove of hole;
Fig. 2 is that in the present invention, schematic diagram arranged by non-woven fabrics;
In figure: 1 is the repair materials of backfill, and 2 is non-woven fabrics, and 3 is old asphalt pavement.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, the hole groove of bituminous pavement is dug out and removes after totally, in the groove of hole, backfill repair materials, the seam formed at road table is called and repairs border; A kind of asphalt pavement pit repairs the method for border reinforcement, first on reparation border, a layer binder is brushed, as shown in Figure 2, then layer of non-woven fabric is routed on binding agent and covers and repair border, last brushing one layer of pitch on non-woven fabrics also spreads cloth one layer of rubble, the distance that two lateral extents of non-woven fabrics repair border is all greater than 5cm, and under non-woven fabrics, the area coverage of layer binder and the area coverage of non-woven fabrics upper strata pitch are all greater than the area coverage of non-woven fabrics.
The present invention it is ensured that carry out construction and repair under dry, cleaning and suitable temperature condition. Should keeping a close eye on weather situation during maintenance construction, contact in time with meteorological department, the definite grasp construction same day and in the recent period weather condition, to instruct reparation. If night, repairing construction, preferably constructed in the middle of continuous 3-5 fine day. Rain, snow etc. should not construct weather forbid construction. The specification of each material wants as follows:
(A) specification of binding agent requires as shown in table 1.
The specification requirement of table 1 binding agent
(B) specification of non-woven fabrics requires as shown in table 2.
The specification requirement of table 2 non-woven fabrics
| Technical indicator | Technical requirements |
| Ultimate strength, N | ��19 |
| Water-intake rate, % | ��0.3 |
| Thickness, mm | ��3 |
| 200 DEG C of deformation performances | It is not out of shape |
(C) the specification requirement of rubble is: maximum particle diameter is within the scope of 1.18��2.36mm, and crushed stone spreading amount is 2.0��4.0kg/m2��
Below in conjunction with an embodiment, the present invention is made further instructions.
Binding agent in this example adopts Nantong to produce bituminous epoxy binding agent, and on non-woven fabrics, brushing pitch all adopts SBS modifying asphalt, and bituminous epoxy binding agent performance is as shown in table 3.
The specification of table 3 bituminous epoxy binding agent
Bituminous epoxy binding agent spreading amount as binding agent is 0.68L/m2, the spreading amount of the SBS modifying asphalt of brushing on non-woven fabrics is 0.45L/m2��
Adopting Zhenjiang Mao Di basalt aggregate as spreading cloth rubble, maximum particle diameter is within the scope of 1.18��2.36mm, and crushed stone spreading amount is 3.0kg/m2��
Implementation process is as follows: first cheats groove at bituminous concrete and repairs brushing one layer of 0.68L/m on border2SBS modifying asphalt, then non-woven fabrics wide for 10cm is taped against on binding agent, finally on non-woven fabrics brush one layer of 0.45L/m2SBS modifying asphalt, and spread cloth 3.0kg/m2Rubble.
Groove reparation border, bituminous concrete hole, after reinforcement, experienced by the usage period of half a year, does not adopt the same period pit repairing of this technology the phenomenon ftractureed in border occur, and the bituminous concrete hole groove adopting present method to process is repaired near border and leakless generation.
The above is only the preferred embodiment of the present invention; it is noted that, for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. the method for an asphalt pavement pit reparation border reinforcement, it is characterised in that: the hole groove of bituminous pavement is dug out and removes after totally, in the groove of hole, backfill repair materials, the seam formed at road table is called and repairs border; First on reparation border, a layer binder is brushed, then layer of non-woven fabric is routed on binding agent and covers and repair border, last brushing one layer of pitch on non-woven fabrics also spreads cloth one layer of rubble, the distance that two lateral extents of non-woven fabrics repair border is all greater than 5cm, and under non-woven fabrics, the area coverage of layer binder and the area coverage of non-woven fabrics upper strata pitch are all greater than the area coverage of non-woven fabrics.
2. asphalt pavement pit according to claim 1 repairs the method for border reinforcement, it is characterized in that: the specification of described binding agent is: 25 DEG C of condition Tensile strength are not less than 6MPa, under 25 DEG C of conditions, elongation at break is not less than 80%, 20 DEG C and when 75 �� of angles of shear slip resistance be not less than 1.5MPa, and between lower floor's bituminous concrete, cohesive strength is not less than 3MPa.
3. asphalt pavement pit according to claim 1 repairs the method for border reinforcement, it is characterised in that: the specification of described non-woven fabrics is: water-intake rate is not more than 0.3%, and less than 200 DEG C are not out of shape, and ultimate strength is not less than 19N, and thickness is not more than 3mm.
4. asphalt pavement pit according to claim 1 repairs the method for border reinforcement, it is characterised in that: the specification of described rubble is: maximum particle diameter is within the scope of 1.18��2.36mm, and crushed stone spreading amount is 2.0��4.0kg/m2��
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018615.8A CN105625150B (en) | 2015-12-29 | 2015-12-29 | A kind of method that asphalt pavement pit repairs border reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018615.8A CN105625150B (en) | 2015-12-29 | 2015-12-29 | A kind of method that asphalt pavement pit repairs border reinforcement |
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| CN105625150A true CN105625150A (en) | 2016-06-01 |
| CN105625150B CN105625150B (en) | 2017-09-15 |
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| CN201511018615.8A Active CN105625150B (en) | 2015-12-29 | 2015-12-29 | A kind of method that asphalt pavement pit repairs border reinforcement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611945A (en) * | 2018-05-18 | 2018-10-02 | 李竑靓 | A kind of construction of the highway maintenance process |
| CN112523028A (en) * | 2019-09-17 | 2021-03-19 | 浙江长兴市政建设有限公司 | Waterproof edge sealing construction method for joint of pit and groove of asphalt pavement |
| CN114411475A (en) * | 2022-01-11 | 2022-04-29 | 中国路桥工程有限责任公司 | Quick repairing method for asphalt pavement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1337711B1 (en) * | 2000-11-14 | 2007-10-03 | Lu, Eric Chia-Chun | Processes of finishing slits of surface layer of airplane runway |
| CN102251464A (en) * | 2011-04-21 | 2011-11-23 | 高伟 | Asphalt pavement crack pouring process and pavement crack repair agent |
| CN202323706U (en) * | 2011-09-09 | 2012-07-11 | 江苏省交通科学研究院股份有限公司 | Repair structure for epoxy asphalt pavement pit slot |
| CN202482745U (en) * | 2011-11-30 | 2012-10-10 | 矢岛浩二 | Repairing patch for asphalt road |
| US20130149035A1 (en) * | 2011-05-19 | 2013-06-13 | Timothy Geary | Pot hole repair patch and method of installation |
-
2015
- 2015-12-29 CN CN201511018615.8A patent/CN105625150B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1337711B1 (en) * | 2000-11-14 | 2007-10-03 | Lu, Eric Chia-Chun | Processes of finishing slits of surface layer of airplane runway |
| CN102251464A (en) * | 2011-04-21 | 2011-11-23 | 高伟 | Asphalt pavement crack pouring process and pavement crack repair agent |
| US20130149035A1 (en) * | 2011-05-19 | 2013-06-13 | Timothy Geary | Pot hole repair patch and method of installation |
| CN202323706U (en) * | 2011-09-09 | 2012-07-11 | 江苏省交通科学研究院股份有限公司 | Repair structure for epoxy asphalt pavement pit slot |
| CN202482745U (en) * | 2011-11-30 | 2012-10-10 | 矢岛浩二 | Repairing patch for asphalt road |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611945A (en) * | 2018-05-18 | 2018-10-02 | 李竑靓 | A kind of construction of the highway maintenance process |
| CN112523028A (en) * | 2019-09-17 | 2021-03-19 | 浙江长兴市政建设有限公司 | Waterproof edge sealing construction method for joint of pit and groove of asphalt pavement |
| CN114411475A (en) * | 2022-01-11 | 2022-04-29 | 中国路桥工程有限责任公司 | Quick repairing method for asphalt pavement |
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|---|---|
| CN105625150B (en) | 2017-09-15 |
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