CN216404953U - High-bonding-force water-based epoxy asphalt wearing layer pavement structure - Google Patents
High-bonding-force water-based epoxy asphalt wearing layer pavement structure Download PDFInfo
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- CN216404953U CN216404953U CN202122640971.0U CN202122640971U CN216404953U CN 216404953 U CN216404953 U CN 216404953U CN 202122640971 U CN202122640971 U CN 202122640971U CN 216404953 U CN216404953 U CN 216404953U
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Abstract
The utility model discloses a high-bonding-force water-based epoxy asphalt wearing layer pavement structure which comprises a basic pavement structure layer, wherein a wearing layer is laid on the upper surface of the basic pavement structure layer, and the wearing layer sequentially comprises a toughening water-based epoxy emulsified asphalt layer, a high-bonding-force layer and an organic silicon permeable layer from top to bottom. The utility model adopts toughened and modified waterborne epoxy, high-viscosity emulsified asphalt and proper amount of cement to prepare the waterborne epoxy asphalt wearing layer together, so that the pavement structure has better adhesive property, the adhesive property of the toughened waterborne epoxy emulsified asphalt layer and the original pavement is improved, the problem that asphalt is brittle and cracked after epoxy resin is added is effectively solved, and the high-temperature property of a cementing material and the adhesive property with aggregate are modified; the maximum nominal diameter of the mixture is limited while the higher asphalt dosage is adopted, so that the road noise can be effectively reduced while the skid resistance is ensured.
Description
Technical Field
The utility model relates to the field of pavement maintenance, in particular to a high-bonding-force water-based epoxy asphalt wearing layer pavement structure.
Background
With the rapid development of high-grade highway construction in China, the vehicle passing mileage of the expressway breaks through 14 kilometers, and more asphalt pavements enter a maintenance period. The preventive maintenance technology can effectively improve the service performance of the asphalt pavement and prolong the service life of the pavement. The water-based epoxy resin is an epoxy resin material with hydrophilicity after emulsification, and after modification, the water-based epoxy resin has the characteristics of good compatibility with emulsified asphalt and capability of obviously modifying the performance of asphalt cement, so that the water-based epoxy resin is applied to a wear layer material based on the emulsified asphalt to a certain extent. But the epoxy resin used for the epoxy resin has larger brittleness and is easy to crack and debond from a base layer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-adhesion waterborne epoxy asphalt wearing layer structure aiming at the problems of insufficient adhesion and large brittleness of a waterborne epoxy emulsified asphalt mixture in the existing waterborne epoxy wearing layer structure.
The utility model is realized by the following technical scheme:
the utility model provides a high adhesive force waterborne epoxy asphalt wearing layer road surface structure, includes basic road surface structural layer, wearing and tearing layer has been laid to basic road surface structural layer upper surface, wearing and tearing layer is from last to including toughening waterborne epoxy emulsified asphalt layer, high adhesive layer, organosilicon permeable formation down in proper order.
Further, the thickness of the toughening water-based epoxy emulsified asphalt layer is 8-12 mm.
Further, the organic silicon permeable layer adopts silane emulsion, and the spraying amount of the silane emulsion is 0.3-0.4L per square meter
Further, the toughening water-based epoxy emulsified asphalt layer is a structural layer formed by uniformly paving basalt or diabase macadam serving as a base material and water-based epoxy resin and high-viscosity emulsified asphalt serving as a cementing material.
Further, the nominal diameter of the maximum particle size of the base material is 8 mm.
Further, the high-viscosity adhesive layer is made of high-viscosity emulsified asphalt, and the spraying amount of the high-viscosity emulsified asphalt is 0.4-0.6L per square meter.
Compared with the prior art, the utility model has the following advantages:
(1) by spraying the organic silicon permeable emulsion on the original basic pavement structure layer, fine cracks and cracks invisible to naked eyes of the asphalt pavement can be effectively closed, and the pavement structure has better bonding performance.
(2) The high-viscosity emulsified asphalt is used as the bonding layer, so that the bonding performance of the toughening waterborne epoxy emulsified asphalt layer and the original pavement is improved.
(3) The toughened water-based epoxy is mixed with the high-viscosity emulsified asphalt to be used as a cementing material, so that the problem that the asphalt is brittle and cracked after the epoxy resin is added is effectively solved, and the high-temperature performance of the cementing material and the bonding performance of the cementing material and aggregate are modified; the maximum nominal diameter of the mixture is limited while the higher asphalt dosage is adopted, so that the road noise can be effectively reduced while the skid resistance is ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of a pavement structure of a high-adhesion water-based epoxy asphalt wearing layer in the utility model.
The reference numbers are as follows:
1. a base pavement structure layer; 2. toughening the water-based epoxy emulsified asphalt layer; 3. a high tack layer; 4. a silicone permeable layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
As shown in fig. 1, a high-adhesion waterborne epoxy asphalt wearing layer pavement structure comprises a basic pavement structure layer 1, wherein a wearing layer is laid on the upper surface of the basic pavement structure layer 1, and the wearing layer sequentially comprises a toughening waterborne epoxy emulsified asphalt layer 2, a high-adhesion layer 3 and an organic silicon permeation layer 4 from top to bottom. Generally, toughened and modified water-based epoxy resin, high-viscosity emulsified asphalt and a proper amount of cement are jointly configured to form a wearing layer, a basic pavement structure layer 1 is generally of an asphalt concrete structure, the high-viscosity emulsified asphalt containing reducible organic silicon resin is sprayed on a pavement of the asphalt concrete structure to form an organic silicon permeable layer 4, so that organic silicon effectively penetrates into the original pavement structure, and the interface bonding performance is improved while the original aged asphalt is reduced; and then spraying high-viscosity modified emulsified asphalt on the surface of the organic silicon layer as a binder to bond the toughening waterborne epoxy emulsified asphalt layer 2 with the basic pavement structure layer 1. The asphalt concrete structure layer is processed on the original pavement structure, and the thickness of the asphalt concrete structure layer is equal to that of the original pavement structure.
In a preferred embodiment of the present invention, the thickness of the toughened water-based epoxy emulsified asphalt layer 2 is 8mm-12mm, and 10mm is generally selected.
In a preferred embodiment of the present invention, the silicone osmotic layer 4 is a silane emulsion having an effective silane content of generally 54.7% and a distribution of 0.3 to 0.4L/square meter, preferably 0.35L/m 2.
In a preferred embodiment of the utility model, the wearing course uses basalt or diabase macadam as a base material, and uses a mixture of aqueous epoxy resin and high-viscosity emulsified asphalt as a cementing material, wherein the dosage of the aqueous epoxy resin is 5-15% of the high-viscosity emulsified asphalt, the preferred ratio of the dosage of the aqueous epoxy resin to the high-viscosity emulsified asphalt is 1:9, the breaking elongation of the modified aqueous epoxy is 130%, the viscosity of evaporation residue of the high-viscosity emulsified asphalt is 550000Pa.s, the ratio of the cementing material to the base material is 8.3%, and cement with the mass ratio of 2% of the mixture is blended; the maximum nominal particle size of the substrate is 8mm, preferably 7.2 mm.
In a preferred embodiment of the utility model, the high-viscosity bonding layer 3 mainly comprises high-viscosity emulsified asphalt, the viscosity of evaporation residues is 60000Pa.s, and the spraying amount is preferably 0.5L/square meter.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a high adhesion waterborne epoxy asphalt wearing layer road surface structure which characterized in that, includes basic road surface structural layer, wearing layer has been laid to basic road surface structural layer upper surface, wearing layer is from last to including toughening waterborne epoxy emulsified asphalt layer, high adhesion coating, organosilicon permeable formation down in proper order.
2. The high-bonding-force waterborne epoxy asphalt wearing layer pavement structure as claimed in claim 1, wherein the thickness of the toughened waterborne epoxy emulsified asphalt layer is 8mm-12 mm.
3. The high-adhesion waterborne epoxy asphalt wearing layer pavement structure as claimed in claim 1, wherein the silicone permeable layer is a silane emulsion, and the silane emulsion is distributed in the silicone permeable layer in an amount of 0.3-0.4L/sq.m.
4. The high-bonding-force aqueous epoxy asphalt wearing layer pavement structure as claimed in claim 1, wherein the toughening aqueous epoxy emulsified asphalt layer is a structural layer formed by uniformly paving basalt or diabase macadam serving as a base material and aqueous epoxy resin and high-bonding emulsified asphalt mixed as a cementing material.
5. A high-adhesion waterborne epoxy asphalt wearing course pavement structure as recited in claim 4, wherein the maximum particle size of the base material has a nominal diameter of 8 mm.
6. The high-adhesion waterborne epoxy asphalt wearing layer pavement structure as claimed in claim 1, wherein the high-adhesion layer is high-viscosity emulsified asphalt, and the distribution amount of the high-viscosity emulsified asphalt in the high-adhesion layer is 0.4-0.6L per square meter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122640971.0U CN216404953U (en) | 2021-10-29 | 2021-10-29 | High-bonding-force water-based epoxy asphalt wearing layer pavement structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122640971.0U CN216404953U (en) | 2021-10-29 | 2021-10-29 | High-bonding-force water-based epoxy asphalt wearing layer pavement structure |
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| CN216404953U true CN216404953U (en) | 2022-04-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115404006A (en) * | 2022-07-11 | 2022-11-29 | 江苏高速公路工程养护技术有限公司 | Hydrophobic dustproof pavement protective coating material and preparation method and application thereof |
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2021
- 2021-10-29 CN CN202122640971.0U patent/CN216404953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115404006A (en) * | 2022-07-11 | 2022-11-29 | 江苏高速公路工程养护技术有限公司 | Hydrophobic dustproof pavement protective coating material and preparation method and application thereof |
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