CN204803705U - Concrete road surface expansion joint filleting structure - Google Patents
Concrete road surface expansion joint filleting structure Download PDFInfo
- Publication number
- CN204803705U CN204803705U CN201520490191.4U CN201520490191U CN204803705U CN 204803705 U CN204803705 U CN 204803705U CN 201520490191 U CN201520490191 U CN 201520490191U CN 204803705 U CN204803705 U CN 204803705U
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- expansion joint
- road surface
- concrete road
- surface expansion
- utility
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Abstract
The utility model relates to a concrete road surface expansion joint filleting structure, including the expansion joint, the expansion joint top is equipped with a buffering hole, buries formula pitch waterstop in the expansion joint in being equipped with, is equipped with rubberized asphalt stress absorbed layer in the buffering hole, and rubberized asphalt stress absorbed layer buries in and is equipped with the sealed with silicone rubber transition layer between the formula pitch waterstop. The profitable effect of utility model is: the utility model discloses the structure has characteristics such as intensity height, good, anticorrosive, heat -resisting, the tough nature of water proofness, bonding reinforce, and eliminate in the at utmost or weaken external corrosive medium and the relapse erosion of quality of water to expansion joint department reduce and leak and permeate, improve the expansion joint life -span, saving later stage cost of maintenance.
Description
Technical field
The utility model relates to a kind of construction engineering technical field, and especially one can shearing resistance resistance to deformation, replaceable concrete road surface expansion joint filleting structure.
Background technology
Along with developing rapidly of China's economic construction, the network of communication lines being representative with highway, bridge, track traffic and transport undertaking are advanced by leaps and bounds, and have made significant headway.Shrinkage joint is a very important ingredient during traffic structure is built, and its role is to regulate the displacement caused by mobile load, environmental characteristic and constructional materials physical property.Shrinkage joint long term exposure in atmosphere, environment for use is severe, it is the position of the most easily destruction and more difficult repairing in highway, bridge, rail traffic structure, found by site inspection and analysis, the main cause of shrinkage joint water slop failure is that erosion control mill layer concrete and infrastructure are thrown off, cause shrinkage joint to be out of shape comparatively large, former water-stopping structure can not meet the requirement of operation.The destruction at shrinkage joint not only makes traffick not feel well, lack the sense of security, and damages the vehicle that causes to integrally-built impact because of it, greatly reduces the application life of highway, bridge and track traffic.In road maintenance process, shrinkage joint is destroyed the maintenance cost caused and has been accounted for 7 ~ 25% of whole maintenance cost, therefore, the repairing quality at shrinkage joint not only directly affects the safety and comfort degree of driving, also affects maintenance cost and the active time of whole means of transportation.
In existing concrete structure, as road, checkdam, reservoir, subway, culvert, sluice, the underground constructions such as tunnel, due to can not continuous placing or the distortion due to foundation settlement (earthquake), or the reason such as to expand with heat and contract with cold of the concrete component to cause due to the change of temperature, shrinkage joint will be reserved when building, deformation joint, anti-seep measure will be taked in these gaps, prevent outside water or ground water seepage in structure space, usual way is maltha and copper sheet or rubber water-proof sheet in shrinkage joint, and the irregular deformation of concrete pit, phenomenon is emitted in the race that postorder can be caused to pour into maltha, and be difficult to cleaning.Meanwhile, current domestic existing petroleum asphalt material, although it has certain elasticity, because both bituminous material and concrete modulus of elasticity has larger difference, causes Bond Performance Between Concrete poor.
Summary of the invention
For the feature at highway, bridge, track traffic shrinkage joint, when do not affect or the least possible impact pass through, ensure shrinkage joint durability and usability, building shrinkage joint stability, durability, long life serve structure, is the technical barrier being badly in need of at present solving.The utility model will solve the shortcoming of above-mentioned prior art, provides a kind of concrete road surface expansion joint filleting structure.This expanded joint structure adopts three layer construction compound action, should ensure that shrinkage joint adapts to the distortion of base plate, inner sealing, ensures washing away or the fatigue stress effect of pulsating water pressure of surperficial anti-high-velocity flow again.
The utility model solves the technical scheme that its technical problem adopts: this concrete road surface expansion joint filleting structure, comprise shrinkage joint, a pit buffer is provided with above shrinkage joint, buried pitch waterstop in being provided with in shrinkage joint, be provided with rubber asphalt stress absorbing layer in pit buffer, rubber asphalt stress absorbing layer and in be provided with silicone rubber seal transition zone between buried pitch waterstop.
As preferably, the degree of depth of described pit buffer is 3 ~ 5cm, is a-a horizontal plane bottom pit buffer, and road surface is b-b horizontal plane.
As preferably, in described, buried pitch waterstop adopts oil building asphalt mixture, it is the composition of 10# pitch, 30# pitch, 60# pitch and 70# pitch, 90# pitch, 100# pitch, above-mentioned asphalt mixture heating is dissolved, be poured in concrete extension joint, require that liquid bitumen mixture is placed into bottom joint-cutting place, rigid pavement, packed height is arranged at from a-a horizontal plane 2cm place.
As preferably, described silicone rubber seal transition zone adopts room temperature vulcanized sili cone rubber, be that a kind of composite organic-inorganic material room temperature vulcanized sili cone rubber sealing transition layer be made up of Si-O main chain is close on middle buried water stop, and cover 0.2 ~ 0.5cm place on overlap joint a-a horizontal plane completely.
As preferably, described rubber asphalt stress absorbing layer is made up of rubber asphalt bottom, macadam and modified bitumen top layer three part.Rubber asphalt 180 rotary viscosity that rubber asphalt bottom adopts is 2.0 ~ 4.0Pas, softening point > 60 DEG C, 5 DEG C of ductility > 10cm; Macadam is 9.5 ~ 13.2mm single particle size limestone gravel, and wherein super particles content is no more than 10%; Modified bitumen is SBS modified bitumen.
As preferably, after described modified bitumen top layer laying, use pneumatic-tired rollers roller-compaction again, roll rear supplementary a small amount of modified bitumen for the first time, repeatedly roll until modified bitumen top layer flushes with b-b horizontal plane.
The effect that utility model is useful is: the utility model structure has the features such as intensity is high, water-tolerant, anticorrosion, heat-resisting, obdurability, adhesion stress are strong, eliminate or weaken extraneous corrosive medium and water quality to the full extent to the corrosion function repeatedly at shrinkage joint place, reduce and leak and permeate, improve the shrinkage joint life-span, save later period maintenance cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Description of reference numerals: in buried pitch waterstop 1, silicone rubber seal transition zone 2, rubber asphalt stress absorbing layer 3, shrinkage joint 4, pit buffer 5.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Embodiment: a kind of concrete road surface expansion joint filleting structure, comprise shrinkage joint 4, a pit buffer 5 is provided with above shrinkage joint 4, buried pitch waterstop 1 in being provided with in shrinkage joint 4, be provided with rubber asphalt stress absorbing layer 3 in pit buffer 5, rubber asphalt stress absorbing layer 3 and in be provided with silicone rubber seal transition zone 2 between buried pitch waterstop 1.Be a-a horizontal plane bottom pit buffer 5, road surface is b-b horizontal plane.
Choose 40 parts of 10# pitches, 10 parts of 30# pitches, 20 parts of 60# pitches, 5 parts of 70# pitches, 10 parts of 90# pitches, 15 parts of 100# pitch mixing are melted in together, under hot melt state, special nozzle is adopted to be filled in shrinkage joint 4, as in buried pitch waterstop 1, require fully to be placed into bottom joint-cutting place, rigid pavement, packed height is arranged at from a-a horizontal plane 2cm place.
Before embedding silicon rubber sealing material, should ensure that base material table is clear without laitance, loosening sand grains or release agent etc., first use sand papering substrate surface, carry out adhesive surface and be stained with tentatively clearly to remove the impurity such as demoulding chaste tree, then emery cloth being dipped a small amount of ethanol carries out adhesive surface after-treatment; Deployed room temperature vulcanized sili cone rubber, with special spraying equipment by room temperature vulcanized sili cone rubber sealing transition layer 2 even application and in being close on buried pitch waterstop 1, and cover completely on overlap joint a-a horizontal plane, spraying Altitude control is at 0.2 ~ 0.5cm.
Rubber asphalt stress absorbing layer 3 is made up of rubber asphalt bottom, macadam and modified bitumen top layer three part.When rubber asphalt spills paving, should in strict accordance with 1.8kg ± 0.2kg/m
2the paving dosage that spills carry out, when spilling paving, spill paving car and should to remain a constant speed travelings, stabilized (steady-state) speed, to ensure to spill the even of paving, it is 180 ~ 200 DEG C that the spilling of rubber asphalt spreads temperature; After spraying rubber asphalt, for guaranteeing that rubble and pitch bond closely, should completely spread rubble (preferably in 3min) immediately while hot, rubble spreads the tentative 15 ~ 22kg/m of paving amount
2, timely spreading rubble after sprinkling rubber asphalt, so that the building stones of pitch and spreading can effectively bond and fix; Subsequently, rubble is laid modified bitumen top layer, then use pneumatic-tired rollers roller-compaction, roll rear supplementary a small amount of modified bitumen for the first time, repeatedly roll until modified bitumen top layer flushes with b-b horizontal plane; For ensureing that pitch and stone can effectively cohere; Pneumatic-tired rollers should be adopted after rubble spreads paving immediately to carry out rolling operation, and pneumatic-tired rollers roll immediately following crushed stone spreading car simultaneously, roll 3 times and are advisable.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (5)
1. a concrete road surface expansion joint filleting structure, comprise shrinkage joint (4), it is characterized in that: shrinkage joint (4) top is provided with a pit buffer (5), buried pitch waterstop (1) in being provided with in shrinkage joint (4), be provided with rubber asphalt stress absorbing layer (3) in pit buffer (5), rubber asphalt stress absorbing layer (3) and in be provided with silicone rubber seal transition zone (2) between buried pitch waterstop (1).
2. concrete road surface expansion joint filleting structure according to claim 1, it is characterized in that: the degree of depth of described pit buffer (5) is 3 ~ 5cm, pit buffer (5) bottom is a-a horizontal plane, in buried pitch waterstop (1) be located at bottom, shrinkage joint (4) to from a-a horizontal plane 2cm place, in being located at, on buried pitch waterstop (1) top to a-a horizontal plane 0.2 ~ 0.5cm place for silicone rubber seal transition zone (2).
3. concrete road surface expansion joint filleting structure according to claim 1 and 2, is characterized in that: in described, buried pitch waterstop (1) adopts oil building asphalt mixture.
4. concrete road surface expansion joint filleting structure according to claim 1 and 2, is characterized in that: described silicone rubber seal transition zone (2) adopts room temperature vulcanized sili cone rubber.
5. concrete road surface expansion joint filleting structure according to claim 1 and 2, is characterized in that: described rubber asphalt stress absorbing layer (3) is made up of rubber asphalt bottom, macadam and modified bitumen top layer three part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520490191.4U CN204803705U (en) | 2015-07-03 | 2015-07-03 | Concrete road surface expansion joint filleting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520490191.4U CN204803705U (en) | 2015-07-03 | 2015-07-03 | Concrete road surface expansion joint filleting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204803705U true CN204803705U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520490191.4U Expired - Fee Related CN204803705U (en) | 2015-07-03 | 2015-07-03 | Concrete road surface expansion joint filleting structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204803705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714642A (en) * | 2016-03-10 | 2016-06-29 | 长沙理工大学 | Joints and construction method suitable for continuous reinforced concrete pavement structure |
| CN112095443A (en) * | 2020-09-14 | 2020-12-18 | 哈尔滨工业大学 | Interface strong-adhesion type seamless telescopic device and construction method thereof |
-
2015
- 2015-07-03 CN CN201520490191.4U patent/CN204803705U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714642A (en) * | 2016-03-10 | 2016-06-29 | 长沙理工大学 | Joints and construction method suitable for continuous reinforced concrete pavement structure |
| CN105714642B (en) * | 2016-03-10 | 2017-08-29 | 长沙理工大学 | Suitable for the seam and construction method of continuous reinforced concrete pavement structure |
| CN112095443A (en) * | 2020-09-14 | 2020-12-18 | 哈尔滨工业大学 | Interface strong-adhesion type seamless telescopic device and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20170703 |