CN108149578A - A kind of processing method about bonding plane at ultra-thin wearing layer bituminous bridge expanssion joint - Google Patents
A kind of processing method about bonding plane at ultra-thin wearing layer bituminous bridge expanssion joint Download PDFInfo
- Publication number
- CN108149578A CN108149578A CN201711392256.1A CN201711392256A CN108149578A CN 108149578 A CN108149578 A CN 108149578A CN 201711392256 A CN201711392256 A CN 201711392256A CN 108149578 A CN108149578 A CN 108149578A
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- CN
- China
- Prior art keywords
- ultra
- wearing layer
- thin wearing
- expansion joint
- layer bituminous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
In the maintenance processes of road, ultra-thin wearing layer bituminous is brand-new material in recent years, using more in the work progress of bridge pave-load layer concrete road surface transformation, the ultra-thin wearing layer bituminous comparatively weakness that paves at expansion joint, emulsion layer is used alone as adhesive linkage using conventional method, breakage is easily caused, the spreading quality of ultra-thin pitch at expansion joint can be effectively improved at present expansion joint with emulsified asphalt adhesive linkage while use using modified epoxy brushing.
Description
Technical field
Bridge Reconstruction field.
Background technology
In the maintenance processes of road, ultra-thin wearing layer bituminous is brand-new material in recent years, due to its have it is higher anti-
Sliding ability, seepage of water add, and paving layer is relatively thin, less to original structure impost, is widely applied.It is supported in bridge pavement
It is higher for the ultra-thin wearing layer bituminous fitting section quality requirement to pave during shield, in bridge pave-load layer concrete road
In the work progress of face transformation, the ultra-thin wearing layer bituminous comparatively weakness that paves at expansion joint is independent using conventional method
Using emulsion layer as adhesive linkage, under the environment that is open to traffic, easily cause the position ultra-thin wearing layer bituminous loose, formed and destroyed
Face, and gradually expand, it influences the traffic safety of road and is formed to generate the phenomenon that jumping vehicle at expansion joint.
According to construction experience for many years, our company research has summed up a kind of method, ultra-thin wearing layer bituminous at expansion joint
Before paving, interface processing is carried out at expansion joint concrete position, interface processing is carried out to it, modified ring together is brushed in milling face
Oxygen resin, progress is ultra-thin wearing layer bituminous before its curing paves, and is effectively increased ultra-thin wearing layer bituminous adhesive strength,
Avoid ultra-thin wearing layer bituminous loose destruction.
Invention content
This invention is by the ultra-thin wearing layer bituminous faying face brushing modified epoxy that paves, being effectively increased super
Thin bonding force reduces loose destruction ultra-thin wearing layer bituminous at bridge expanssion joint.
This invention comprises the steps of.
Step 1, construction site is checked according to construction drawing, determines ultra-thin wearing layer bituminous paving thickness, really
The fixed ultra-thin wearing layer bituminous region that paves, gradient of road etc. carry out milling to original path face.
Step 2 is mixed at bridge expanssion joint with reference to the ultra-thin wearing layer bituminous thickness to pave according to the longitudinal slope of bridge
Solidifying soil section carries out brushing modified epoxy.
After the completion of step 3 epoxy resin brushing, cure ultra-thin wearing layer bituminous pave of advancing at it.
Step 4 conserves.
Step 5 open to traffic
It is also included wherein in step 1 and repetition measurement is carried out to the concrete pavement layer road surface of former bridge floor, original structure drawing is compared, according to survey
Amount data are summarized, and calculate the ultra-thin wearing layer bituminous paving thickness of live reality, have for concrete roadway surface
Defect, it is loose, first there are the region of disease, the reparation of advanced walking along the street face Structural defect to defect.
It also repairs using concrete chisel removal processing loosely, protects comprising the defective position of road pavement wherein in step 1
Original reinforcing bar is stayed, again casting concrete, for the more position in crack, reinforced using geotechnological lattice.
After the completion of also repairing comprising the defective position of road pavement wherein in step 1, start to carry out milling, milling to structural plane
Depth of the depth according to the practical survey calculation in scene is dug, but thickness is no more than 2cm.
It is wherein also included in step 1, during milling, due to having steel in former bridge structure pave-load layer supercrust
Muscle, protective layer thickness is generally 3cm, and during milling, milling depth is not easy more than 2cm.
It wherein also includes in step 1, after the completion of milling, bridge floor is cleaned, clean out the dust of bridge floor and loose
Finger stone, and be rinsed using giant, until bridge floor drying is without drifting along.
It wherein also includes in step 2, after the completion of milling, the concrete structure surface at bridge expanssion joint is changed before paving
The brushing of property epoxy resin.
The proportioning of modified epoxy is wherein also included in step 2, adhesive, curing agent are matched by the description of product,
Each proportional quantity should not be excessive, a 5kg, is configured according to single expansion joint dosage, prevents from being configured the excessive colloid time and passes wine and consolidate
Change.
1st, during being also included in modified epoxy brushing wherein in step 2, it is ensured that the colloid of brushing wants thin and thick moderate, thick
Degree is in 2mm ~ 3mm or so, to ensure that structure colloid can immerse ultra-thin wearing layer bituminous layer.
2nd, it also to be carried out before ultra-thin wearing layer bituminous pave comprising brushing modified epoxy wherein in step 2, every
At place expansion joint it is ultra-thin wearing layer bituminous pave before carry out brushing modified epoxy in half an hour.
When asphalt paving the 3rd, is also included in wherein in step 3, roll the time in pitch and ground before colloid curing
Pressure, brushing adhesive are controlled to completion is rolled within one hour.
4th, it is also included in after the completion of ultra-thin wearing layer bituminous pave, blocked road, conserves 72 hours wherein in step 4, support
During shield, no through traffic all vehicle pass-throughs.
What the 5th, this was invented is that a little easy for construction, modified epoxy bonding force is strong, and durability is preferable.
Description of the drawings
Fig. 1 is bridge expanssion joint figure Pavement Improvement figure.
Specific embodiment
Method for the expansion joint node processing for being better understood from this invention, the elaboration being embodied with reference to figure are said
It is bright.
As shown in the figure, according to design drawing and field condition, milling milling is carried out to 6 structure of bridge pave-load layer concrete road surface
Plane depth is required according to design drawing.
At milling to expansion joint 1, should the slope of a low-angle be carried out, top of the slope is according to the actual state at scene
The top surface of expansion joint shaped steel 4, bottom of slope are road-surface milling face 2
Road surface after milling 2 is cleaned out after the completion of milling, cleaning is divided into first to be cleaned with dedicated sweeper, is then used
Giant is rinsed.Until milling face is totally dustless, and without loose concrete particle.
After milling face is rinsed well, after the drying of concrete surface, one layer of concrete milling face brushing is gone out at expansion joint and is changed
Property epoxy glue layer 3.
After the completion of modified epoxy glue 3 is brushed, proceed by ultra-thin wearing layer bituminous 5 and pave.Brushing modified epoxy
Resin glue 3 is brushed depending on live asphalt paving progress before cover asphalt paving at every place expansion joint in 10 minutes.
After ultra-thin wearing layer bituminous 5 paving is completed, to the closed maintenance that the transformation region carries out, all vehicles is forbidden to lead to
Row.
Claims (3)
1. the present invention changes for a kind of brushing of the ultra-thin wearing layer bituminous expansion joint node processing that paves of bridge concrete Pavement Improvement
Property epoxy resin increase bonding force method.
2. it is an oblique section to expansion joint concrete milling, top of the slope is stretches before brushing modified epoxy as right 1 is told
Contracting seam shaped steel top surface, bottom of slope are road-surface milling face.
3. as right 1 is told, the mode that this kind of brushing modified epoxy increases pitch bonding force is used for bridge deck concrete road surface
The method of transformation paves comprising plain asphalt and ultra-thin wearing layer bituminous paves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711392256.1A CN108149578A (en) | 2017-12-21 | 2017-12-21 | A kind of processing method about bonding plane at ultra-thin wearing layer bituminous bridge expanssion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711392256.1A CN108149578A (en) | 2017-12-21 | 2017-12-21 | A kind of processing method about bonding plane at ultra-thin wearing layer bituminous bridge expanssion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108149578A true CN108149578A (en) | 2018-06-12 |
Family
ID=62464890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711392256.1A Pending CN108149578A (en) | 2017-12-21 | 2017-12-21 | A kind of processing method about bonding plane at ultra-thin wearing layer bituminous bridge expanssion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108149578A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374017A (en) * | 2019-06-11 | 2019-10-25 | 广州市市政工程设计研究总院有限公司 | A kind of blackened remodeling method of cement bridge floor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1469128A1 (en) * | 2003-04-16 | 2004-10-20 | Hebag AG | Waterproof expansion joint construction |
| CN101929127A (en) * | 2010-08-25 | 2010-12-29 | 广州新粤交通技术有限公司 | Method for preparing overlay of bridge expansion joint |
| CN206070394U (en) * | 2016-07-15 | 2017-04-05 | 江苏中路工程技术研究院有限公司 | Existed concrete bridge bridge floor overlays thin-layer bituminous paving structure |
| CN206385417U (en) * | 2016-11-16 | 2017-08-08 | 西安公路研究院 | A kind of asphalt pavement structure with high-performance ultrathin wearing course |
| CN206385416U (en) * | 2016-11-16 | 2017-08-08 | 西安公路研究院 | A kind of cement pavement structure with high-performance ultrathin wearing course |
-
2017
- 2017-12-21 CN CN201711392256.1A patent/CN108149578A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1469128A1 (en) * | 2003-04-16 | 2004-10-20 | Hebag AG | Waterproof expansion joint construction |
| CN101929127A (en) * | 2010-08-25 | 2010-12-29 | 广州新粤交通技术有限公司 | Method for preparing overlay of bridge expansion joint |
| CN206070394U (en) * | 2016-07-15 | 2017-04-05 | 江苏中路工程技术研究院有限公司 | Existed concrete bridge bridge floor overlays thin-layer bituminous paving structure |
| CN206385417U (en) * | 2016-11-16 | 2017-08-08 | 西安公路研究院 | A kind of asphalt pavement structure with high-performance ultrathin wearing course |
| CN206385416U (en) * | 2016-11-16 | 2017-08-08 | 西安公路研究院 | A kind of cement pavement structure with high-performance ultrathin wearing course |
Non-Patent Citations (2)
| Title |
|---|
| 吴煜等: "超薄磨耗层施工技术在道路维修工程中的应用", 《道路与交通工程》 * |
| 李国强等: "《面向未来的土木工程-第三届全国高校土木工程专业大学生论坛》", 30 April 2015, 同济大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374017A (en) * | 2019-06-11 | 2019-10-25 | 广州市市政工程设计研究总院有限公司 | A kind of blackened remodeling method of cement bridge floor |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180612 |
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| WD01 | Invention patent application deemed withdrawn after publication |