CN214061247U - Elastic filling material for bridge expansion joint - Google Patents
Elastic filling material for bridge expansion joint Download PDFInfo
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- CN214061247U CN214061247U CN202021323712.4U CN202021323712U CN214061247U CN 214061247 U CN214061247 U CN 214061247U CN 202021323712 U CN202021323712 U CN 202021323712U CN 214061247 U CN214061247 U CN 214061247U
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- heat
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- elastic
- insulation
- block
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Abstract
The utility model relates to the technical field of roads and bridges, in particular to an elastic filling material for bridge expansion joints; the heat-insulation and heat-insulation composite material comprises an asphalt layer, and a heat-insulation filling block and an elastic filling block which are embedded in the asphalt layer, wherein the heat-insulation filling block is a closed-cell polyethylene foam plate cut into a diamond shape or a square shape, and the elastic filling block is a waste tire block cut into a diamond shape or a square shape. The heat preservation filling block can let whole filler play certain heat preservation thermal-insulated effect, reduces the heat-conduction between two adjacent road surfaces, and the elasticity filling block can provide certain bearing capacity, but it is elastic, even the utility model discloses the elasticity filling block also can not cause the actual injury to the metal part in the expansion joint under the condition that receives the wheel and roll.
Description
Technical Field
The utility model belongs to the technical field of the road bridge technique and specifically relates to bridge expansion joint elasticity stopping.
Background
The bridge expansion joint is not a gap but a pair of steel structure devices hooked with each other, can connect two adjacent bridge decks without fixation, and can effectively resist pavement expansion caused by factors such as temperature and the like. It is obvious that it must be filled with a non-rigid material, otherwise it may cause damage to passing cars and the like. The conventional method generally adopts a mode of asphalt and gravel for filling. However, it is known that the elasticity of the crushed stone is very poor, and the crushed stone may scratch the metal structure inside the expansion joint under the pressure of long-term traffic of the automobile.
Disclosure of Invention
The utility model provides a not enough to prior art, the utility model provides an elasticity stopping suitable for inside packing of expansion joint.
The technical scheme of the utility model is that:
bridge expansion joint elasticity stopping, its characterized in that: the heat-insulation and heat-insulation composite material comprises an asphalt layer, and a heat-insulation filling block and an elastic filling block which are embedded in the asphalt layer, wherein the heat-insulation filling block is a closed-cell polyethylene foam plate cut into a diamond shape or a square shape, and the elastic filling block is a waste tire block cut into a diamond shape or a square shape. The heat preservation filling block can let whole filler play certain heat preservation thermal-insulated effect, reduces the heat-conduction between two adjacent road surfaces, and the elasticity filling block can provide certain bearing capacity, but it is elastic, even the utility model discloses the elasticity filling block also can not cause the actual injury to the metal part in the expansion joint under the condition that receives the wheel and roll.
Specifically, the number of the heat-preservation filling blocks is equal to that of the elastic filling blocks.
Specifically, the heat-insulating filling blocks and the elastic filling blocks are the same in shape, the side length is 2 cm, the thickness is 1 cm, and the uniform small size is convenient for mixing with asphalt.
In particular, the upper surface and the lower surface of the elastic filling block are carved with tool marks, so that the surface friction force is improved, and the combination with asphalt is facilitated.
Specifically, the closed-cell polyethylene foam board adopted by the heat-insulating filling block is a heat-deformation-resistant polyethylene foam board, specifically, a heat-deformation-resistant polyethylene foam plastic disclosed in chinese patent and a preparation method thereof, and a heat-deformation-resistant polyethylene foam plastic disclosed in patent No. 201610290775.6. The asphalt is mixed with other materials by heating, so that the asphalt is made of a material which is not easy to deform at high temperature.
The utility model has the advantages that: adopt obturator polyethylene cystosepiment and junked tire piece to replace the rubble, do not increase the quantity of pitch, have certain buffer capacity to rolling of vehicle, because the filling block itself has elasticity, even receive the impact and also can not produce the essence damage to the inside metal parts in expansion joint.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the cutting mark of the elastic filling block.
In the figure, 1, asphalt; 2. an elastic filling block; 3. a heat-insulating filling block; 4. and (6) cutting marks.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1 and 2, the elastic filling material for bridge expansion joints is characterized in that: the heat-insulation and heat-insulation composite material comprises an asphalt layer, and a heat-insulation filling block and an elastic filling block which are embedded in the asphalt layer, wherein the heat-insulation filling block is a closed-cell polyethylene foam plate cut into a diamond shape or a square shape, and the elastic filling block is a waste tire block cut into a diamond shape or a square shape. The heat preservation filling block can let whole filler play certain heat preservation thermal-insulated effect, reduces the heat-conduction between two adjacent road surfaces, and the elasticity filling block can provide certain bearing capacity, but it is elastic, even the utility model discloses the elasticity filling block also can not cause the actual injury to the metal part in the expansion joint under the condition that receives the wheel and roll.
The number of the heat-preservation filling blocks is equal to that of the elastic filling blocks.
The heat-insulating filling blocks and the elastic filling blocks are the same in shape, the side lengths are both 2 cm, the thicknesses are both 1 cm, and the uniform small sizes are convenient for mixing with asphalt.
The upper surface and the lower surface of the elastic filling block are carved with tool marks, and the elastic filling block has the advantages of improving the friction force of the surface and being more beneficial to the combination with asphalt.
The closed-cell polyethylene foam board adopted by the heat-insulation filling block is a heat-deformation-resistant polyethylene foam board, and specifically relates to heat-deformation-resistant polyethylene foam plastic disclosed in Chinese patent and a preparation method thereof, and patent number 201610290775.6. The asphalt is mixed with other materials by heating, so that the asphalt is made of a material which is not easy to deform at high temperature.
The preparation method of this example:
firstly, cutting waste tires and polyethylene foam boards into diamonds or squares for later use;
secondly, melting asphalt, and uniformly mixing the asphalt with the material obtained in the first step;
and thirdly, laying the mixture obtained in the second step on a plane, and cooling the mixture into a plate or a coiled material.
The application method of the embodiment comprises the following steps:
transporting the plate or the coiled material to the bridge expansion joint, cutting the plate or the coiled material with a certain area according to the using amount, and pouring the hot melt into the bridge expansion joint and trowelling the surface.
The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.
Claims (5)
1. Bridge expansion joint elasticity stopping, its characterized in that: the heat-insulation and heat-insulation composite material comprises an asphalt layer, and a heat-insulation filling block and an elastic filling block which are embedded in the asphalt layer, wherein the heat-insulation filling block is a closed-cell polyethylene foam plate cut into a diamond shape or a square shape, and the elastic filling block is a waste tire block cut into a diamond shape or a square shape.
2. The elastic filler for bridge expansion joints according to claim 1, wherein: the number of the heat-preservation filling blocks is equal to that of the elastic filling blocks.
3. The elastic filler for bridge expansion joints according to claim 2, wherein: the heat-insulating filling block and the elastic filling block are the same in shape, the side length is 2 cm, and the thickness is 1 cm.
4. The elastic filler for bridge expansion joints according to claim 3, wherein: the upper surface and the lower surface of the elastic filling block are carved with tool marks.
5. The elastic filler for bridge expansion joints according to claim 4, wherein: the closed-cell polyethylene foam board adopted by the heat-insulation filling block is a heat-deformation-resistant polyethylene foam board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021323712.4U CN214061247U (en) | 2020-07-08 | 2020-07-08 | Elastic filling material for bridge expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021323712.4U CN214061247U (en) | 2020-07-08 | 2020-07-08 | Elastic filling material for bridge expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214061247U true CN214061247U (en) | 2021-08-27 |
Family
ID=77384704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021323712.4U Active CN214061247U (en) | 2020-07-08 | 2020-07-08 | Elastic filling material for bridge expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214061247U (en) |
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2020
- 2020-07-08 CN CN202021323712.4U patent/CN214061247U/en active Active
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