CN204401432U - A kind of measures of cracks on concrete pavement repairs structure - Google Patents
A kind of measures of cracks on concrete pavement repairs structure Download PDFInfo
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- CN204401432U CN204401432U CN201520013203.4U CN201520013203U CN204401432U CN 204401432 U CN204401432 U CN 204401432U CN 201520013203 U CN201520013203 U CN 201520013203U CN 204401432 U CN204401432 U CN 204401432U
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Abstract
The utility model relates to a kind of measures of cracks on concrete pavement and repairs structure, relates to urban road and highway.Mainly comprise pull bar, gauze wire cloth, repair layer, pull bar is across on measures of cracks on concrete pavement, and pull bar and gauze wire cloth are embedded in repair layer.In measures of cracks on concrete pavement both sides, adopt joint cutter to cut out the dark seam of twice 1/3 ~ 1/4 concrete thickness of slab, cut Surface layer's concrete between two seams, pull bar and gauze wire cloth are set, adopt high-strength C50 steel fibre fines concrete to repair.The method easy construction, repairs cost low, adopts pull bar restriction crack progressing, and arrange gauze wire cloth and adopt high strength early strength concrete to repair road surface, be combined with former road surface, concrete strength is high, and open to traffic is fast.
Description
Technical field
The utility model relates to a kind of measures of cracks on concrete pavement and repairs structure, relates to urban road and highway, particularly relates to measures of cracks on concrete pavement and repairs.
Background technology
Cement concrete pavement can produce shrinkage crack under the hydration reaction and thermal stresses effect of cement, therefore, rigid pavement will arrange contracting seam, contracting seam is poured in rigid pavement, before not yet producing crack after concrete final set, adopt the method for joint-cutting, according to certain spacing on rigid pavement, cut out the seam on vertical road surface together, object allows rigid pavement is regular shrinks at joint-cutting place, the contracting portion of sewing on adopts joint sealing material to fill, and avoids rainwater on road surface to enter and causes pavement damage.But, due to many factors, after concrete pavement construction, or through use after a while, crack can be produced between two contracting seams, and be irregular, this crack is referred to as disconnected plate, not only affects the presentation quality on road surface, and rainwater is along infiltration road surface, crack, under the effect of vehicular load, produce purt mud phenomenon, plate sinks, and finally causes pavement damage.
Urban road and highway have very strict restriction to measures of cracks on concrete pavement, " Of Road Engineering Quality Checking And Evaluation standard " (JTG F80-2004) specifies, " the break number of concrete slab; speedway and Class I highway must not exceed 0.2% of evaluation section concrete slab total block data, other highways must not more than 0.4% ".The repairing in crack is more difficult, repairs improper being easy to and again damages, and the concrete slab that two are contracted between seam cuts by many units in charge of construction, and concreting again, although the method is effective, effort of taking a lot of work, rehabilitation cost is high.Also have the method adopting local to cut top concrete repair, but do not solve crack progressing problem well and adopt ordinary concrete to repair strength problem, mending concrete is broken under the effect of vehicular load after a while damages.
Summary of the invention
The purpose of this utility model is: provide a kind of simple and effective measures of cracks on concrete pavement to repair structure, this structure easy construction, repairing cost is low, adopts pull bar restriction crack progressing, arranges gauze wire cloth and adopts high strength steel fiber reinforced concrete to repair road surface, its beneficial effect is: do not need to abolish rigid pavement on a large scale, employing local repair process, arranges pull bar and gauze wire cloth can limit crack progressing effectively, and repair layer concrete strength is high, be combined with former road surface, open to traffic is fast.
The utility model is realized by following technology: measures of cracks on concrete pavement is repaired structure and mainly comprised pull bar 1, gauze wire cloth 2, repair layer 3, and described pull bar 1 is across on measures of cracks on concrete pavement, and pull bar 1 and gauze wire cloth 2 are embedded in repair layer 3.Pull bar 1 adopts indented bars, diameter 14 ~ 18 millimeters, and pull bar 1 two ends arrange right angle crotch, and repair layer 3 is steel fibrous concrete, and thickness h is 1/3 ~ 1/4 of rigid pavement thickness of slab, and the edge of repair layer 3 should exceed 1 at least 5 centimetre, pull bar.
There are the both sides in crack 4 in rigid pavement 8, joint cutter is adopted to cut out the dark joint-cutting 5 of twice 1/3 ~ 1/4 concrete thickness of slab, crack 4 is made substantially to occupy in the middle of twice joint-cutting 5, cut surface layer between two joint-cuttings 5 concrete, formed and repair groove together, in crack 4, place arranges pull bar 1, and the effect of pull bar 1 is that restriction crack 4 under thermal stresses, rigid pavement 8 is developed, and reflexes to repair layer 3.At pull bar 1 upper berth layer of steel wire net 2, repair layer 3 of constructing in groove, repair layer 3 adopts C50 strong intensity steel fiber reinforced concrete, and gauze wire cloth 2 can ensure the bulk strength of superthin concrete, does not produce shrinkage crack, and under vehicular load, concrete is not broken.Rear embossing filled up by concrete, and maintenance gets final product open to traffic in 2 ~ 3 days.
Accompanying drawing explanation
Fig. 1 is the utility model concrete patching profile;
Fig. 2 is that rigid pavement orthogonal fracture repairs plan view;
Fig. 3 is rigid pavement oblique crack repairing plan view;
Fig. 4 is for being concrete flag angle crack repairing plan view.
In figure: 1-pull bar, 2-gauze wire cloth, 3-repair layer, 4-crack, 5-joint-cutting, 6-transverse joint, 7-longitudinal joint, 8-rigid pavement.
Detailed description of the invention
During mending concrete pavement crack, there are the both sides in crack 4 in rigid pavement 8, joint cutter is adopted to cut out the dark joint-cutting 5 of twice 1/3 ~ 1/4 concrete thickness of slab, crack 4 is made substantially to occupy in the middle of twice joint-cutting 5, cut surface layer between two joint-cuttings 5 concrete, formed and repair groove together, milling machine milling also can be adopted to go out groove.In crack 4, place arranges pull bar 1, and according to the crotch position of pull bar 1 in groove, symmetrical crack 4 adopts the impact drilling to arrange pull bar 1, and at pull bar 1 upper berth layer of steel wire net 2, repair layer 3 of constructing in groove, repair layer 3 adopts C50 high-strength steel fiber fines concrete.The utility model is repaiied measures of cracks on concrete pavement profile and is seen Fig. 1, further illustrates the utility model below in conjunction with drawings and Examples:
Embodiment 1:
The crack 4 that rigid pavement 8 occurs is substantially vertical with road surface longitudinal joint 7, repairs plan view and sees Fig. 2, and the first half display gauze wire cloth 2 in figure, the latter half does not show gauze wire cloth 2.Cut out the dark joint-cutting of twice 1/3 ~ 1/4 concrete thickness of slab 5, two joint-cutting 5 spacing 50 cm at the parallel transverse joint in the both sides in crack 46, crack 4 is occupy in the middle of twice joint-cutting 5 substantially, requires joint-cutting 5 longitudinal joint 7.Cut the facing concrete between twice joint-cutting 5, formed and repair groove together.Adopt Churn drill to get out the anchor hole of pull bar 1 in the both sides in crack 4, the crotch of two pitchs of holes and pull bar 1 coincide, diameter 20 millimeters, dark 1 cm of hole depth rate pull bar 1 crotch.Pull bar 1 adopts the HRB335 indented bars of φ 16 millimeters to process, the spacing 15 ~ 20 centimetres that pull bar 1 is mutually arranged in groove.Cleaned out by anchor hole, insert anchor hole with epoxide-resin glue, pull bar two ends are uniform application epoxide-resin glue also, pull bar 1 is pressed into anchor hole, unnecessary epoxide-resin glue is extruded, and can carry out next step operation after epoxide-resin glue primary solidification, general 2 ~ 3 hours.Groove to be cleaned out and fully moistening with water, with cement paste brushing groove concrete joint surface, be conducive to conjunction old and new concret.Pull bar 1 is laid gauze wire cloth 2, and gauze wire cloth 2 specification is 4 × 40 × 40 millimeters, i.e. steel wire diameter 4 millimeters, and grid is spacing 40 millimeters in length and breadth, and gauze wire cloth 2 edge is 2 cm far from joint-cutting 5, and gauze wire cloth 2 and pull bar 1 adopt electric welding machine spot welding.First configure C50 high-strength concrete, steel fibre is mixed mix in high-strength concrete even, reserve the concrete of some not admixture steel fibres, first in groove, insert steel fibrous concrete, with drill rod in addition tamping, steel fibrous concrete end face is apart from road surface about 2 cm, by the Concrete Filled of non-admixture steel fibre on steel fibrous concrete, adopt small vibrator vibration compacting, embossing before concrete initial set, lines should be consistent with original rigid pavement 8.Cover straw bag watering maintenance, can open to traffic when concrete reaches 70% of design strength.
Epoxide-resin glue proportioning is as follows:
Epoxy resin 100 parts, dibutyl phthalate 10 ~ 20 parts, ethylenediamine 6 ~ 10 parts, dry cement appropriate (as filler).First epoxy resin and dibutyl phthalate are stirred, add curing agent ethylene diamine, then add cement.Epoxide-resin glue allotment is not too many, with joining, is finished before solidification.
C50 steel fibrous concrete is fines concrete, and the maximum particle of crushed stone is not more than 20 millimeters, and proportioning is as follows:
Cement: sand: rubble: steel fibre: water: water reducing agent=1: 2.16: 1.17: 0.25: 0.45: 0.01
One cubic metre of match ratio (weight ratio) is as follows:
Cement: sand: rubble: steel fibre: water: water reducing agent=478: 1034: 557: 118: 215: 4.78
Cement adopts 52.5R ordinary Portland cement, and sand adopts medium sand, and rubble adopts 0.5 ~ 1 centimetre of particulate rubble.Water reducing agent is the workability in order to improve steel fibrous concrete, constructability, adopts UNF-2A high efficiency water reducing agent.Can mix a small amount of early strength admixture, improve early age strength of concrete, early strength admixture adopts triethanolamine, and incorporation is 0.02% ~ 0.05% of cement consumption.
Embodiment 2:
Measures of cracks on concrete pavement 4 and road surface longitudinal joint 7 oblique, repair plan view and see Fig. 3, and the first half display gauze wire cloth 2 in figure, the latter half does not show gauze wire cloth 2.Cut out joint-cutting 5 in the both sides in crack 4, should ensure that pull bar 1 is not less than 5 centimetres apart from the minimum place of joint-cutting 5, require joint-cutting 5 longitudinal joint 7.Can install expansion bolt in the place boring not having pull bar 1 unsettled when laying gauze wire cloth 2, gauze wire cloth 2 is spot-welded together with expansion bolt, and other steps are with embodiment 1.
Embodiment 3:
Measures of cracks on concrete pavement 4 is positioned at plate angle, repairs plan view and sees Fig. 4, and the first half display gauze wire cloth in figure, the latter half does not show gauze wire cloth.Vertical transverse joint 6 and longitudinal joint 7 cut out vertical two joint-cuttings 5 mutually respectively, should ensure that pull bar 1 is not less than 5 centimetres apart from the minimum place of joint-cutting 5.In the place boring not having pull bar 1 unsettled, expansion bolt can be installed when laying gauze wire cloth 2, gauze wire cloth and expansion bolt spot-welded together, other steps are with embodiment 1.
Claims (3)
1. a measures of cracks on concrete pavement repairs structure, it is characterized in that: mainly comprise pull bar (1), gauze wire cloth (2), repair layer (3), described pull bar (1) is across on measures of cracks on concrete pavement, and pull bar (1) and gauze wire cloth (2) are embedded in repair layer (3).
2. a kind of measures of cracks on concrete pavement according to claim 1 repairs structure, it is characterized in that: described described pull bar (1) adopts indented bars, and diameter 14 ~ 18 millimeters, pull bar (1) two ends arrange right angle crotch.
3. a kind of measures of cracks on concrete pavement according to claim 1 repairs structure, it is characterized in that: described repair layer (3) is steel fibrous concrete, thickness h is 1/3 ~ 1/4 of rigid pavement thickness of slab, and the edge of repair layer (3) should exceed (1) at least 5 centimetre, pull bar.
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| CN201520013203.4U CN204401432U (en) | 2015-01-09 | 2015-01-09 | A kind of measures of cracks on concrete pavement repairs structure |
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| CN105507111A (en) * | 2016-01-14 | 2016-04-20 | 郑州大学 | Restoration structure and method for damaged concrete pavement panel |
| CN105507109A (en) * | 2016-01-14 | 2016-04-20 | 郑州大学 | Damaged concrete pavement panel reinforcing structure and method |
| CN105507110A (en) * | 2016-01-14 | 2016-04-20 | 郑州大学 | Reinforcing structure and method for damaged concrete pavement panel |
| CN107604801A (en) * | 2017-10-13 | 2018-01-19 | 苏州东振路桥工程有限公司 | The reparation structure and its gap casting glue restorative procedure of a kind of impaired bituminous paving |
| CN107620487A (en) * | 2017-11-09 | 2018-01-23 | 河南工程学院 | A kind of fiber concrete crack shutoff method |
| CN107829569A (en) * | 2017-10-31 | 2018-03-23 | 中国冶集团有限公司 | Masonry panel fracture unit method |
| CN108049651A (en) * | 2017-12-22 | 2018-05-18 | 武汉固立达建筑科技有限公司 | A kind of distress in concrete blocking method |
| CN108086086A (en) * | 2017-12-22 | 2018-05-29 | 河海大学 | A kind of method repaired structure and exploration coring bituminous paving is repaired using it that drills |
| CN108797292A (en) * | 2017-04-26 | 2018-11-13 | 福建省第公路工程公司 | A kind of cement concrete cracks breakage raggle formula patching |
| CN109736163A (en) * | 2019-01-17 | 2019-05-10 | 安徽省公路桥梁工程有限公司 | Embankment widens longitudinal joint treatment structures and construction method |
| CN109778653A (en) * | 2018-12-30 | 2019-05-21 | 广东华工大建筑工程有限公司 | A kind of concrete structure crack method for repairing and mending |
| CN110894754A (en) * | 2018-09-12 | 2020-03-20 | 上海天补材料科技有限公司 | Concrete crack treatment technology |
| CN110904763A (en) * | 2019-11-25 | 2020-03-24 | 四川路通建设工程有限公司 | Asphalt road reinforcing treatment method |
| CN111021267A (en) * | 2019-12-25 | 2020-04-17 | 付君义 | Connecting portion reinforcing apparatus in bridge maintenance |
| CN111719400A (en) * | 2020-07-08 | 2020-09-29 | 刘江桥 | Method for repairing damaged road surface |
| CN112813784A (en) * | 2021-01-08 | 2021-05-18 | 江秀剑 | Repairing device and repairing method for highway maintenance |
| CN113323442A (en) * | 2021-06-10 | 2021-08-31 | 中国十九冶集团有限公司 | Method for treating upper crack of fabricated floor slab |
| CN113323443A (en) * | 2021-06-30 | 2021-08-31 | 天津新路广建筑工程有限公司 | Concrete crack repairing method applying structural reinforcement |
| CN113737595A (en) * | 2021-09-28 | 2021-12-03 | 广东一新长城建筑集团有限公司 | Road repairing construction process |
| CN114319007A (en) * | 2021-08-16 | 2022-04-12 | 宁波路宝科技实业集团有限公司 | Pavement repairing method |
| CN114541337A (en) * | 2022-04-14 | 2022-05-27 | 重庆交通大学 | Method for repairing damage of abrasion section of debris flow drainage groove |
| CN115322713A (en) * | 2022-07-25 | 2022-11-11 | 烟台恒邦泵业有限公司 | Bonded iron-silicon-iron and preparation process thereof |
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- 2015-01-09 CN CN201520013203.4U patent/CN204401432U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105507109A (en) * | 2016-01-14 | 2016-04-20 | 郑州大学 | Damaged concrete pavement panel reinforcing structure and method |
| CN105507110A (en) * | 2016-01-14 | 2016-04-20 | 郑州大学 | Reinforcing structure and method for damaged concrete pavement panel |
| CN105507111A (en) * | 2016-01-14 | 2016-04-20 | 郑州大学 | Restoration structure and method for damaged concrete pavement panel |
| CN108797292A (en) * | 2017-04-26 | 2018-11-13 | 福建省第公路工程公司 | A kind of cement concrete cracks breakage raggle formula patching |
| CN107604801A (en) * | 2017-10-13 | 2018-01-19 | 苏州东振路桥工程有限公司 | The reparation structure and its gap casting glue restorative procedure of a kind of impaired bituminous paving |
| CN107604801B (en) * | 2017-10-13 | 2019-09-06 | 苏州东振路桥工程有限公司 | A kind of the reparation structure and its gap casting glue restorative procedure of impaired bituminous pavement |
| CN107829569A (en) * | 2017-10-31 | 2018-03-23 | 中国冶集团有限公司 | Masonry panel fracture unit method |
| CN107620487A (en) * | 2017-11-09 | 2018-01-23 | 河南工程学院 | A kind of fiber concrete crack shutoff method |
| CN108086086B (en) * | 2017-12-22 | 2019-11-12 | 河海大学 | A method of drilling repairs structure and repairs exploration coring bituminous pavement using it |
| CN108086086A (en) * | 2017-12-22 | 2018-05-29 | 河海大学 | A kind of method repaired structure and exploration coring bituminous paving is repaired using it that drills |
| CN108049651A (en) * | 2017-12-22 | 2018-05-18 | 武汉固立达建筑科技有限公司 | A kind of distress in concrete blocking method |
| CN110894754A (en) * | 2018-09-12 | 2020-03-20 | 上海天补材料科技有限公司 | Concrete crack treatment technology |
| CN109778653A (en) * | 2018-12-30 | 2019-05-21 | 广东华工大建筑工程有限公司 | A kind of concrete structure crack method for repairing and mending |
| CN109736163A (en) * | 2019-01-17 | 2019-05-10 | 安徽省公路桥梁工程有限公司 | Embankment widens longitudinal joint treatment structures and construction method |
| CN110904763A (en) * | 2019-11-25 | 2020-03-24 | 四川路通建设工程有限公司 | Asphalt road reinforcing treatment method |
| CN111021267B (en) * | 2019-12-25 | 2022-04-12 | 上海同固结构工程有限公司 | Connecting portion reinforcing apparatus in bridge maintenance |
| CN111021267A (en) * | 2019-12-25 | 2020-04-17 | 付君义 | Connecting portion reinforcing apparatus in bridge maintenance |
| CN111719400A (en) * | 2020-07-08 | 2020-09-29 | 刘江桥 | Method for repairing damaged road surface |
| CN112813784A (en) * | 2021-01-08 | 2021-05-18 | 江秀剑 | Repairing device and repairing method for highway maintenance |
| CN113323442A (en) * | 2021-06-10 | 2021-08-31 | 中国十九冶集团有限公司 | Method for treating upper crack of fabricated floor slab |
| CN113323443A (en) * | 2021-06-30 | 2021-08-31 | 天津新路广建筑工程有限公司 | Concrete crack repairing method applying structural reinforcement |
| CN114319007A (en) * | 2021-08-16 | 2022-04-12 | 宁波路宝科技实业集团有限公司 | Pavement repairing method |
| CN113737595A (en) * | 2021-09-28 | 2021-12-03 | 广东一新长城建筑集团有限公司 | Road repairing construction process |
| CN113737595B (en) * | 2021-09-28 | 2022-07-05 | 广东一新长城建筑集团有限公司 | Road repairing construction process |
| CN114541337A (en) * | 2022-04-14 | 2022-05-27 | 重庆交通大学 | Method for repairing damage of abrasion section of debris flow drainage groove |
| CN114541337B (en) * | 2022-04-14 | 2024-03-29 | 重庆交通大学 | Method for repairing damage of abrasion section of debris flow drainage groove |
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