CN201506946U - Expansion joint on cement concrete pavement - Google Patents
Expansion joint on cement concrete pavement Download PDFInfo
- Publication number
- CN201506946U CN201506946U CN2009200259909U CN200920025990U CN201506946U CN 201506946 U CN201506946 U CN 201506946U CN 2009200259909 U CN2009200259909 U CN 2009200259909U CN 200920025990 U CN200920025990 U CN 200920025990U CN 201506946 U CN201506946 U CN 201506946U
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- expansion joint
- cement concrete
- concrete pavement
- layer
- rainwater
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Abstract
The utility model discloses an expansion joint on a cement concrete pavement. The funnel-shaped expansion joint is arranged on a cross section of the cement concrete pavement; a surface layer is made of asphalt, cement mortar, iron powder and mixtures of an adhesive agent and arranged on an upper layer of the funnel-shaped expansion joint; a diaphragm layer is made of a plastic film and arranged at the lower part of the surface layer; a waterproof layer is arranged at the lower part of the diaphragm layer, and the materials thereof adopt powdery structures with the hydrophobic property. By adopting the funnel-shaped expansion joint, an infiltration path of rainwater on the pavement is changed. Compared with a straight joint, the rainwater can not directly infiltrate downwards, and powdery filling materials in the waterproof layer can be movably and newly arranged and distributed along with the change on gaps of the expansion joint, so that the gaps are filled, thereby effectively eliminating the infiltration of rainwater into cement concrete pavement base and prolonging the service life of the cement concrete pavement.
Description
Technical field
The utility model relates to a kind of cement concrete pavement, relates in particular to a kind of expanded joint structure of cement concrete pavement.
Background technology
Concrete is because of drawing materials extensively, cheap, the compressive strength height, characteristics such as maintenance costs is low, become the most widely used constructional materials in world today's building structure, but the topmost shortcoming of concrete is that anti-pressure ability is poor, ftractures easily, and staying suitable shrinkage joint in the rigid pavement is one of effective ways of control cracking.At present, the packing material that is used for the shrinkage joint, road surface mainly contains two kinds: a kind of is to fill up with the drop table, and the natural ductility of pitch is good, can remedy the gap of the seam that causes because of expanding with heat and contract with cold, and prevents that rainwater from entering the basis of cement concrete, causes the infringement on road surface.But also there is shortcoming in pitch as the inserts at shrinkage joint, and promptly in summer high temperature season, pitch dissolves easily under hot conditions and causes loss, and easy in the winter time dry and cracked generation crack is subjected to the influence of ambient conditions big; Two are to use the shaped steel material as inserts, have adhesion stress by force, not fragile, the advantage of long service life, but exist price expensive, the shortcoming that cost is high.
Summary of the invention
The purpose of this utility model is the problem that exists at existing cement concrete road surface expansion joint, provide a kind of indeformable under all temps condition, prevent that the road surface rainwater from entering highway subgrade, prolong the rigid pavement cement concrete road surface expansion joint structure in application life.
The purpose of this utility model is achieved through the following technical solutions, the cross section of this cement concrete pavement is the infundibulate shrinkage joint, the upper strata at described infundibulate shrinkage joint is a surface layer, described surface material is the mixture of pitch, cement mortar, iron powder, binder, the bottom of described surface layer is provided with membrane layer, the material of described membrane layer is a plastic sheeting, and the bottom of described membrane layer is provided with waterproofing course, and the material of described waterproofing course is the granular structure with hydrophobic nature.
The cross section at described shrinkage joint is a funnel-shaped structure, because the upper opening of funnel is wide than the bottom, compare with vertical masonry joint, the bottom surface of funnel upper shed and concrete athwartship plane adhesive surface are big, stretching resistance, shearing force are strong, the rigid pavement that has prevented the both sides, shrinkage joint is stressed inconsistent, simultaneously, infundibulate seam barrier performance is good, this is because the outer wall of funnel is a curve, compares with vertical masonry joint, has changed the path that the road surface rainwater infiltrates, infiltration can not directly down can effectively stop the road surface rainwater to infiltrate the basic unit and the roadbed of highway.
Because the material in the waterproofing course is dry loose granular structure, when the road surface gap width varies with temperature when flexible, its powdered granule promptly can move in the slit and rearrange distribution, make and be full of powder particles in the slit all the time, thereby can guarantee the shrinkage joint no matter how temperature changes, water resistance is constant, and can effectively stop rainwater water leaking-in cement concrete road bed.
The beneficial effects of the utility model: funnel shaped expanded joint structure, changed the path that the road surface rainwater infiltrates, compare with vertical masonry joint, infiltration can not be directly down, adding powdery packing material in the waterproofing course can change to move and rearrange distribution along with the slit at shrinkage joint, all the time be full of the slit, can effectively stop rainwater water leaking-in cement concrete road bed, prolong the application life of cement concrete pavement.
Description of drawings
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing
Fig. 1 is a sectional view of the present utility model
Among the figure: 1, infundibulate seam 2, surface layer 3, membrane layer 4, waterproofing course
The specific embodiment
As shown in Figure 1, the cross section of this cement concrete pavement is infundibulate shrinkage joint 1, the upper strata at infundibulate shrinkage joint 1 is a surface layer 2, surface layer 2 materials are the mixture of pitch, cement mortar, iron powder, binder, the bottom of surface layer 2 is provided with membrane layer 3, and the material of membrane layer 3 is a plastic sheeting, and the bottom of membrane layer 3 is provided with waterproofing course 4, the material of waterproofing course 4 is the granular structure with hydrophobic nature
Claims (3)
1. a cement concrete road surface expansion joint is characterized in that this cement concrete road surface expansion joint cross section is an infundibulate, and the upper strata at described infundibulate shrinkage joint is a surface layer, and the bottom of described surface layer is provided with membrane layer, and the bottom of described membrane layer is provided with waterproofing course.
2. a kind of cement concrete road surface expansion joint according to claim 1 is characterized in that
3. a kind of cement concrete road surface expansion joint according to claim 1, the material that it is characterized in that described waterproofing course is the granular structure with hydrophobic nature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200259909U CN201506946U (en) | 2009-05-21 | 2009-05-21 | Expansion joint on cement concrete pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200259909U CN201506946U (en) | 2009-05-21 | 2009-05-21 | Expansion joint on cement concrete pavement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201506946U true CN201506946U (en) | 2010-06-16 |
Family
ID=42468075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200259909U Expired - Fee Related CN201506946U (en) | 2009-05-21 | 2009-05-21 | Expansion joint on cement concrete pavement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201506946U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233408A (en) * | 2013-05-08 | 2013-08-07 | 江苏永泰建造工程有限公司 | Cement concrete expansion joint structure with large area ground, and implementation method thereof |
| CN103485259A (en) * | 2013-09-06 | 2014-01-01 | 福建省奥翔体育塑胶有限公司 | Expansion joint padding belt for preventing sport field plastic from swelling or collapsing and method for producing expansion joint padding belt |
| CN103924557A (en) * | 2014-04-16 | 2014-07-16 | 黄河勘测规划设计有限公司 | Panel dam concrete squeezing side wall cut-through method |
| CN104562889A (en) * | 2014-12-31 | 2015-04-29 | 王新华 | Cement concrete pavement with novel expansion joints and pre-broken joints |
| CN110644360A (en) * | 2019-10-24 | 2020-01-03 | 福州大学 | Expansion joint structure suitable for seamless bridge approach plate and construction method |
| CN111021177A (en) * | 2019-12-04 | 2020-04-17 | 东南大学 | High-ductility cement-based material based seamless cement pavement structure and construction method and application thereof |
-
2009
- 2009-05-21 CN CN2009200259909U patent/CN201506946U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233408A (en) * | 2013-05-08 | 2013-08-07 | 江苏永泰建造工程有限公司 | Cement concrete expansion joint structure with large area ground, and implementation method thereof |
| CN103233408B (en) * | 2013-05-08 | 2015-11-11 | 李永奎 | A kind of cement concrete expansion joint structure of Ground and implementation method thereof |
| CN103485259A (en) * | 2013-09-06 | 2014-01-01 | 福建省奥翔体育塑胶有限公司 | Expansion joint padding belt for preventing sport field plastic from swelling or collapsing and method for producing expansion joint padding belt |
| CN103485259B (en) * | 2013-09-06 | 2015-10-21 | 福建省奥翔体育塑胶有限公司 | The Expansion Joint filler band preventing athletic ground plastic cement from heaving or to subside and implementation method |
| CN103924557A (en) * | 2014-04-16 | 2014-07-16 | 黄河勘测规划设计有限公司 | Panel dam concrete squeezing side wall cut-through method |
| CN104562889A (en) * | 2014-12-31 | 2015-04-29 | 王新华 | Cement concrete pavement with novel expansion joints and pre-broken joints |
| CN110644360A (en) * | 2019-10-24 | 2020-01-03 | 福州大学 | Expansion joint structure suitable for seamless bridge approach plate and construction method |
| CN111021177A (en) * | 2019-12-04 | 2020-04-17 | 东南大学 | High-ductility cement-based material based seamless cement pavement structure and construction method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20110521 |