CN104746439A - Rapid repairing method for damage to bridge expansion joint notch - Google Patents
Rapid repairing method for damage to bridge expansion joint notch Download PDFInfo
- Publication number
- CN104746439A CN104746439A CN201510037409.5A CN201510037409A CN104746439A CN 104746439 A CN104746439 A CN 104746439A CN 201510037409 A CN201510037409 A CN 201510037409A CN 104746439 A CN104746439 A CN 104746439A
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- China
- Prior art keywords
- joint notch
- concrete
- repairing method
- notch
- elastic polyurethane
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a rapid repairing method for damage to a bridge expansion joint notch. The rapid repairing method includes the following steps that S1, concrete of the expansion joint notch is chiseled out for trimming, dust is cleaned away, and water is removed; S2, the expansion joint notch is coated with a primer; S3, polyurethane elastic concrete is prepared, and aggregate is doped while the polyurethane elastic concrete is guided into the expansion joint notch until the expansion joint notch is filled; S4, the polyurethane elastic concrete is subjected to surface finishing, so that the surface of the polyurethane elastic concrete is flat.
Description
Technical field
The present invention relates to road, bridge construction technical field, particularly the damaged fast repairing method of a kind of bridge expanssion joint notch.
Background technology
At present, in China's speedway, town road, the various types of type steel expansion joint device of bridge expanssion joint extensive use, construction technology is comparatively ripe, but due to himself defect and operating environment impact, easily there is the diseases such as shaped steel fracture, concrete breakage, waterstop season cracking in type steel expansion joint, not only causes the waste of resource, bring very big inconvenience simultaneously to repairing construction.
Because expansion gap device is originally as prefabricated component, therefore in highway and Urban Bridge shrinkage joint Renewal process, two longer key links consuming time are the construction of reserved notch and shrinkage joint is concrete builds and maintenance, and especially concreting and maintenance holding time in whole Renewal process is the longest.Therefore for saving Highway Bridge Expansion Joint replacing construction, needing to solve reserved notch concrete construction problem, later stage concreting and maintenance required time will be saved simultaneously as far as possible.Both sides concrete curing deficiency and open to traffic, the long main difficult technical being restriction conventional telescopic and stitching maintain and replace of reserved notch engineering time.Therefore both durability was reliable how to realize one, rapid construction can meet the active demand that the current shrinkage joint notch renovation technique required is bridge expanssion joint notch recovery technique again.
Summary of the invention
The present invention is directed to prior art above shortcomings, provide one.
The present invention is achieved through the following technical solutions:
The damaged fast repairing method of a kind of bridge expanssion joint notch, comprises step:
S1, cut deburring to the concrete of shrinkage joint notch, dust out also dries moisture;
S2, at shrinkage joint notch brushing silane coupling agent;
S3, preparation elastic polyurethane concrete, import elastic polyurethane concrete in the notch of shrinkage joint, while participate in aggregate, until fill full shrinkage joint notch;
S4, receipts face is carried out to elastic polyurethane concrete, make its surfacing.
Preferably, elastic polyurethane concrete be comprise summer component and winter component two component polyurethane elastic concrete.
Preferably, in step s3, at importing elastic polyurethane concrete, while turn over while participating in aggregate.
Preferably, aggregate is cobble.
Preferably, after step s4, layer of fine sand is sprinkled at elastic polyurethane concrete surface.
Preferably, after a predetermined time, fine sand is cleaned.
Present invention process speed of application is fast, elastic concrete durability is strong, solves in prior art owing to repairing at shrinkage joint notch concrete the technical problem that curing time is long and later stage durability is not high.
Accompanying drawing explanation
Shown in Fig. 1 is section structure schematic diagram of the present invention.
Detailed description of the invention
Below with reference to accompanying drawing of the present invention; clear, complete description and discussion are carried out to the technical scheme in the embodiment of the present invention; obviously; as described herein is only a part of example of the present invention; it is not whole examples; based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to protection scope of the present invention.
For the ease of the understanding to the embodiment of the present invention, be further explained for specific embodiment below in conjunction with accompanying drawing, and each embodiment does not form the restriction to the embodiment of the present invention.
Bridge expanssion joint notch as shown in Figure 1, left side is not for repair state, and right side is reparation state, according to this figure, is described implementation step of the present invention below in conjunction with Fig. 1.
The damaged fast repairing method of a kind of bridge expanssion joint notch provided by the invention, comprises step:
S1, cut deburring to the concrete 1 of shrinkage joint notch, dust out also dries moisture;
S2, at shrinkage joint notch brushing silane coupling agent 3, can mix appropriate acetone, the present invention does not do concrete restriction to the thickness of silane coupling agent 3 and the addition ratio that mixes acetone.Silane coupling agent 3 cuts rear concrete interface as interfacial agents bonding polyurethane elastic concrete 2 and notch, silane coupling agent 3 is a kind of bi-components, 100% solid content elastomer coatings, be used for adding the adhesion strength between reinforced concrete 1 and elastic polyurethane concrete 2, use silane coupling agent 3 can increase adhesion strength more than 25%;
S3, preparation elastic polyurethane concrete 2(winter and summer are constructed two kinds of different temperature effect components, the on-the-spot bi-component according to fixing carries out the construction of 1:1 match ratio), while import elastic polyurethane concrete 2 in the notch of shrinkage joint, while it is good for participating in the cobble that aggregate 4(adopts particle diameter to be not more than 1cm), until fill full shrinkage joint notch, the elastic polyurethane concrete 2 of building can be turned over small instruments and tools (vibrating without the need to machinery) easily, noise-less pollution;
S4, adopt artificial receipts face to elastic polyurethane concrete 2, scrape plane surface, treat the basic sclerosis in surface, can be sprinkled into the fine sand that one deck is thin, can clean fine sand after 20 minutes, integral construction completes, can open to traffic after one hour.
The present invention is applicable to speedway or the situation needing fast Development traffic is keeped in repair in notch concrete breakage in town road shrinkage joint, this construction technology speed is fast, elastic concrete durability is strong, to solve in prior art owing to repairing at shrinkage joint notch concrete the technical problem that curing time is long and later stage durability is not high.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. the damaged fast repairing method of bridge expanssion joint notch, is characterized in that, comprise step:
S1, cut deburring to the concrete of shrinkage joint notch, dust out also dries moisture;
S2, at shrinkage joint notch brushing silane coupling agent;
S3, preparation elastic polyurethane concrete, import elastic polyurethane concrete in the notch of shrinkage joint, while participate in aggregate, until fill full shrinkage joint notch;
S4, receipts face is carried out to elastic polyurethane concrete, make its surfacing.
2. the damaged fast repairing method of bridge expanssion joint notch according to claim 1, is characterized in that, described elastic polyurethane concrete be comprise summer component and winter component two component polyurethane elastic concrete.
3. the damaged fast repairing method of bridge expanssion joint notch according to claim 1, is characterized in that, in step s3, at importing elastic polyurethane concrete, while turn over while participating in aggregate.
4. the damaged fast repairing method of bridge expanssion joint notch according to claim 1, it is characterized in that, described aggregate is cobble.
5. the damaged fast repairing method of bridge expanssion joint notch according to claim 1, is characterized in that, after step s4, sprinkle layer of fine sand at elastic polyurethane concrete surface.
6. the damaged fast repairing method of bridge expanssion joint notch according to claim 5, is characterized in that, after a predetermined time, clean described fine sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510037409.5A CN104746439A (en) | 2015-01-26 | 2015-01-26 | Rapid repairing method for damage to bridge expansion joint notch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510037409.5A CN104746439A (en) | 2015-01-26 | 2015-01-26 | Rapid repairing method for damage to bridge expansion joint notch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104746439A true CN104746439A (en) | 2015-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510037409.5A Pending CN104746439A (en) | 2015-01-26 | 2015-01-26 | Rapid repairing method for damage to bridge expansion joint notch |
Country Status (1)
| Country | Link |
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| CN (1) | CN104746439A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625169A (en) * | 2015-12-24 | 2016-06-01 | 重庆博焱建筑加固工程有限公司 | Rapid replacing method and restoring method for bridge expansion joint |
| CN106906740A (en) * | 2017-04-07 | 2017-06-30 | 北京特希达交通勘察设计院有限公司 | The restorative procedure of bridge expanssion joint |
Citations (5)
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| CA2252332A1 (en) * | 1998-01-29 | 1999-07-29 | Silicone Specialties, Inc. | Expansion joint system |
| US20040154247A1 (en) * | 2003-02-04 | 2004-08-12 | Frank Bellino | Precast composite header joint system and a method for forming and installing the same |
| EP1775383A1 (en) * | 2005-10-12 | 2007-04-18 | Mageba S.A. | Method for reconstructing a structure fit for traffic |
| CN102296545A (en) * | 2011-05-26 | 2011-12-28 | 中国铁道科学研究院铁道建筑研究所 | Method for quickly repairing existing expansion joints of concrete railway bridge |
| CN104018424A (en) * | 2014-05-10 | 2014-09-03 | 浙江大学宁波理工学院 | Bridge expansion joint repairing method |
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2015
- 2015-01-26 CN CN201510037409.5A patent/CN104746439A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2252332A1 (en) * | 1998-01-29 | 1999-07-29 | Silicone Specialties, Inc. | Expansion joint system |
| US20040154247A1 (en) * | 2003-02-04 | 2004-08-12 | Frank Bellino | Precast composite header joint system and a method for forming and installing the same |
| EP1775383A1 (en) * | 2005-10-12 | 2007-04-18 | Mageba S.A. | Method for reconstructing a structure fit for traffic |
| CN102296545A (en) * | 2011-05-26 | 2011-12-28 | 中国铁道科学研究院铁道建筑研究所 | Method for quickly repairing existing expansion joints of concrete railway bridge |
| CN104018424A (en) * | 2014-05-10 | 2014-09-03 | 浙江大学宁波理工学院 | Bridge expansion joint repairing method |
Non-Patent Citations (4)
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| 宋元林，梁新华，张兴顺: "公路桥梁伸缩缝的修复试验研究", 《山西交通科技》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625169A (en) * | 2015-12-24 | 2016-06-01 | 重庆博焱建筑加固工程有限公司 | Rapid replacing method and restoring method for bridge expansion joint |
| CN106906740A (en) * | 2017-04-07 | 2017-06-30 | 北京特希达交通勘察设计院有限公司 | The restorative procedure of bridge expanssion joint |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150701 |