CN215164286U - QMS pavement wearing layer with good anti-cracking performance - Google Patents
QMS pavement wearing layer with good anti-cracking performance Download PDFInfo
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- CN215164286U CN215164286U CN202120054040.XU CN202120054040U CN215164286U CN 215164286 U CN215164286 U CN 215164286U CN 202120054040 U CN202120054040 U CN 202120054040U CN 215164286 U CN215164286 U CN 215164286U
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Abstract
The utility model is suitable for a thin layer top facing technical field provides a QMS road surface wearing layer that anti-cracking performance is good, including the base course, the upper surface subsides of base course are equipped with high-elastic modified asphalt concrete layer, and the upper surface subsides of elasticity modified asphalt concrete layer are equipped with the steel fibre enhancement layer, and steel fibre enhancement layer and high-elastic modified asphalt concrete layer fixed connection, and the upper surface subsides of steel fibre enhancement layer are equipped with super-viscous wearing layer, super-viscous wearing layer and steel fibre enhancement layer fixed connection, are provided with the adhesive linkage between super-viscous wearing layer and the steel fibre enhancement layer; compared with maintenance technologies such as micro surfacing, broken stone sealing and the like, the super-adhesive wearing layer is arranged as the surface layer, so that the driving comfort of the road surface can be improved, the noise is reduced, and the wear resistance is enhanced; the use of the bonding layer not only improves the bonding property between the super-adhesive wearing layer and the steel fiber reinforced layer, but also enhances the wear resistance of the cover surface; the steel fiber reinforced layer improves the self-reinforcement and crack resistance of the material.
Description
Technical Field
The utility model belongs to the technical field of the thin layer top facing, especially, relate to a QMS road surface wearing and tearing layer that anti-cracking performance is good.
Background
With the increase of the road age and the traffic volume of the asphalt pavement in China and the influence of complex climatic factors, the asphalt pavement is easy to have early disease phenomena such as cracks, ruts, pits, and the reduction of anti-skid performance, and the diseases seriously affect the service level of the asphalt pavement and become important problems to be solved urgently in the field of highway engineering research.
Currently, thin layer finishes have poor abrasion and crack resistance, resulting in reduced ride comfort and safety.
SUMMERY OF THE UTILITY MODEL
The utility model provides a QMS road surface wearing and tearing layer that anti schizolysis performance is good aims at solving the wearability and the crack resistance of present thin layer top facing relatively poor, leads to the travelling comfort of driving and the problem that the security reduces.
The utility model discloses a QMS road surface wearing layer with good anti-cracking performance, which comprises a base layer, wherein the upper surface of the base layer is pasted with a high-elastic modified asphalt concrete layer, and the high-elastic modified asphalt concrete layer is fixedly connected with the base layer; the upper surface of the high-elasticity modified asphalt concrete layer is adhered with a steel fiber reinforced layer, the steel fiber reinforced layer is fixedly connected with the high-elasticity modified asphalt concrete layer, the upper surface of the steel fiber reinforced layer is adhered with a super-adhesive wearing layer, and the super-adhesive wearing layer is fixedly connected with the steel fiber reinforced layer; an adhesive layer is arranged between the super-sticky wearing layer and the steel fiber reinforced layer, and the super-sticky wearing layer is connected with the steel fiber reinforced layer through the adhesive layer.
Preferably, the basic unit with be provided with aerogel composite fiber heat insulation layer between the high-elastic modified asphalt concrete layer, the basic unit with high-elastic modified asphalt concrete layer is connected through aerogel composite fiber heat insulation layer.
Preferably, the top of the ultra-viscous wear layer has a heat reflective coating.
Preferably, the high-elasticity modified asphalt concrete layer adopts fine grain type AC-10 dense gradation.
Preferably, the material of the heat reflection coating is methyl methacrylate resin.
Preferably, the adhesive layer is a silica gel compacting agent.
Compared with the prior art, the beneficial effects of the utility model are that: compared with maintenance technologies such as micro surfacing, broken stone sealing and the like, the super-adhesive wearing layer is arranged as the surface layer, so that the driving comfort of the road surface can be improved, the noise is reduced, and the wear resistance is enhanced; the use of the bonding layer not only improves the bonding property between the super-adhesive wearing layer and the steel fiber reinforced layer, but also enhances the wear resistance of the cover surface; the steel fiber reinforced layer improves the self-reinforcement and crack resistance of the material;
by arranging the high-elasticity modified asphalt concrete layer, the high-elasticity modified asphalt concrete layer adopts AC-10 dense-graded asphalt concrete as a stress absorption layer, so that the anti-reflection crack capability is improved; the design of the heat reflection coating can reflect sunlight and reduce the temperature of the pavement;
by arranging the aerogel composite fiber heat-insulating layer, the aerogel composite fiber heat-insulating layer can effectively block the external temperature, the temperature of the pavement can be reduced at high temperature in summer, the shear strength of the whole pavement is improved, and the occurrence of track diseases can be reduced; in winter, when the temperature difference is great day and night, the aerogel composite fiber heat insulation layer can effectively slow down the change rate of the temperature of the pavement and reduce the temperature shrinkage cracks caused by great day and night changes of the external environment temperature.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view of the super bond wearing course layer of FIG. 1;
in the figure: 1-base layer, 2-high elastic modified asphalt concrete layer, 3-steel fiber reinforced layer, 4-super-viscous wearing layer, 5-adhesive layer, 6-aerogel composite fiber heat insulation layer and 7-heat reflection coating.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in 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 invention and are not intended to limit the invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-2, a QMS pavement wearing layer with good crack resistance comprises a base layer 1, wherein a high-elasticity modified asphalt concrete layer 2 is adhered to the upper surface of the base layer 1, and the high-elasticity modified asphalt concrete layer 2 is fixedly connected with the base layer 1; the upper surface of the high-elasticity modified asphalt concrete layer 2 is adhered with a steel fiber reinforced layer 3, the steel fiber reinforced layer 3 is fixedly connected with the high-elasticity modified asphalt concrete layer 2, the upper surface of the steel fiber reinforced layer 3 is adhered with a super-adhesive wearing layer 4, and the super-adhesive wearing layer 4 is fixedly connected with the steel fiber reinforced layer 3; an adhesive layer 5 is arranged between the super-sticky wearing layer 4 and the steel fiber reinforced layer 3, and the super-sticky wearing layer 4 and the steel fiber reinforced layer 3 are connected through the adhesive layer 5.
In the present embodiment, the base course 1 is provided, wherein the base course 1 is an original road surface. By arranging the high-elasticity modified asphalt concrete layer 2, wherein the high-elasticity modified asphalt concrete layer 2 is a fine grain type AC-10 asphalt concrete layer prepared by adopting high-elasticity modified asphalt with super elasticity and a hot-mixing hot-paving process, the high-elasticity modified asphalt concrete layer 2 can be used as a stress absorption layer, and the anti-reflection crack capability of the device is improved. The steel fiber reinforced layer 3 has improved material crack resistance by providing the steel fiber reinforced layer 3, wherein the steel fiber reinforced layer 3 comprises the cationic emulsified asphalt and the steel fibers.
Through setting up super-viscous wearing layer 4, wherein contain pitch and five twist roving glass fiber of short silk in the super-viscous wearing layer 4, this five twist roving glass fiber of short silk has effectively improved the bonding strength of super-viscous wearing cold mix, makes super-viscous wearing layer 4's adhesion nature and compressive property improve greatly. The super-sticky wearing layer 4 is used as the surface layer, the technical advantages of the super-sticky wearing layer 4 are fully utilized, the driving comfort can be greatly improved, the noise is reduced, the wear resistance, the waterproofness and the durability are enhanced, the construction process is simple, the cold-stirring and cold-paving on site are realized, the hot stirring is not needed, the low carbon and the energy are saved, and the manufacturing cost can be greatly reduced. Through setting up adhesive linkage 5, because adhesive linkage 5 is the silica gel dense agent, make adhesive linkage 5's use not only improved the adhesion between super viscous wearing layer 4 and the steel fiber enhancement layer 3, strengthened the wearability of top facing simultaneously.
Further, be provided with aerogel composite fiber heat insulation layer 6 between basic unit 1 and the high-elastic modified asphalt concrete layer 2, basic unit 1 and high-elastic modified asphalt concrete layer 2 are connected through aerogel composite fiber heat insulation layer 6.
In this embodiment, through setting up aerogel composite fiber heat insulation layer 6, wherein the aerogel composite fiber that aerogel composite fiber heat insulation layer 6 adopted has overcome the shortcoming that aerogel intensity is low, more fragile. In summer, the temperature of the pavement can be reduced, the shear strength of the whole pavement is improved, and the occurrence of track diseases can be reduced; in winter, when the temperature difference is great day and night, the aerogel composite fiber heat insulation layer 6 can effectively slow down the change rate of the temperature of the pavement and reduce the temperature shrinkage cracks caused by great day and night changes of the external environment temperature.
Further, the top of the ultra-viscous wearing layer 4 has a heat reflective coating 7. The material of the heat reflective coating 7 is methyl methacrylate resin.
In the present embodiment, the black color characteristic of the road surface can be improved by providing the heat reflective coating 7, and the heat reflective coating 7 is a functional coating material applied to the surface of the super-viscous wearing layer 4, and the functional particles in the coating reflect radiation or radiate absorbed heat energy to the external space, thereby reflecting sunlight to reduce the amount of heat stored in the surface layer and the structural layer and suppressing the temperature rise of the road surface.
Further, the high-elasticity modified asphalt concrete layer 2 adopts fine grain type AC-10 dense gradation.
In the embodiment, the high-elasticity modified asphalt concrete layer 2 adopts AC-10 dense-graded asphalt concrete as the stress absorption layer, so that the anti-reflection crack capability is improved.
Further, the adhesive layer 5 is a silica gel compacting agent.
In this embodiment, by setting the adhesive layer 5 as a silica gel compacting agent, after the user finishes laying the steel fiber reinforcement layer 3, the silica gel compacting agent can be coated on the upper surface of the steel fiber reinforcement layer 3, and then the super-sticky wearing layer 4 is laid above the silica gel compacting agent, so that the silica gel compacting agent improves the adhesion between the super-sticky wearing layer 4 and the steel fiber reinforcement layer 3, and the wear resistance of the overlay is enhanced.
In conclusion, the super-sticky wearing layer 4 is arranged as the surface layer, so that compared with maintenance technologies such as micro-surfacing, gravel sealing and the like, the travelling comfort of the road surface can be improved, the noise is reduced, and the wear resistance is enhanced; the use of the bonding layer 5 not only improves the bonding property between the super-adhesive wearing layer 4 and the steel fiber reinforced layer 3, but also enhances the wear resistance of the cover surface; the steel fiber reinforced layer 3 improves the self-reinforcement and crack resistance of the material;
by arranging the high-elasticity modified asphalt concrete layer 2, the high-elasticity modified asphalt concrete layer 2 adopts AC-10 dense-graded asphalt concrete as a stress absorption layer, so that the anti-reflection crack capability is improved; the design of the heat reflection coating can reflect sunlight and reduce the temperature of the pavement;
by arranging the aerogel composite fiber heat-insulating layer 6, the aerogel composite fiber heat-insulating layer 6 can effectively block the external temperature, the temperature of the pavement can be reduced at high temperature in summer, the shear strength of the whole pavement is improved, and the occurrence of track diseases can be reduced; in winter, when the temperature difference is great day and night, the aerogel composite fiber heat insulation layer 6 can effectively slow down the change rate of the temperature of the pavement and reduce the temperature shrinkage cracks caused by great day and night changes of the external environment temperature.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A QMS pavement wearing layer with good anti-cracking performance is characterized in that: the asphalt base layer comprises a base layer (1), wherein a high-elasticity modified asphalt concrete layer (2) is adhered to the upper surface of the base layer (1), and the high-elasticity modified asphalt concrete layer (2) is fixedly connected with the base layer (1);
the upper surface of the high-elasticity modified asphalt concrete layer (2) is adhered with a steel fiber reinforced layer (3), the steel fiber reinforced layer (3) is fixedly connected with the high-elasticity modified asphalt concrete layer (2), the upper surface of the steel fiber reinforced layer (3) is adhered with a super-adhesive wearing layer (4), and the super-adhesive wearing layer (4) is fixedly connected with the steel fiber reinforced layer (3);
an adhesive layer (5) is arranged between the super-adhesive wearing layer (4) and the steel fiber reinforced layer (3), and the super-adhesive wearing layer (4) is connected with the steel fiber reinforced layer (3) through the adhesive layer (5).
2. The QMS pavement wear layer having good crack resistance as defined in claim 1, wherein: basic unit (1) with be provided with aerogel composite fiber heat insulation layer (6) between high-elastic modified asphalt concrete layer (2), basic unit (1) with high-elastic modified asphalt concrete layer (2) are connected through aerogel composite fiber heat insulation layer (6).
3. The QMS pavement wear layer having good crack resistance as defined in claim 1, wherein: the top of the super-sticky wearing layer (4) is provided with a heat reflection coating (7).
4. The QMS pavement wear layer having good crack resistance as defined in claim 1, wherein: the high-elasticity modified asphalt concrete layer (2) adopts fine grain type AC-10 dense gradation.
5. A QMS pavement wear layer with good crack resistance as defined in claim 3, wherein: the material of the heat reflection coating (7) is methyl methacrylate resin.
6. The QMS pavement wear layer having good crack resistance as defined in claim 1, wherein: the adhesive layer (5) is a silica gel compacting agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120054040.XU CN215164286U (en) | 2021-01-08 | 2021-01-08 | QMS pavement wearing layer with good anti-cracking performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120054040.XU CN215164286U (en) | 2021-01-08 | 2021-01-08 | QMS pavement wearing layer with good anti-cracking performance |
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| Publication Number | Publication Date |
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| CN215164286U true CN215164286U (en) | 2021-12-14 |
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| CN202120054040.XU Active CN215164286U (en) | 2021-01-08 | 2021-01-08 | QMS pavement wearing layer with good anti-cracking performance |
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2021
- 2021-01-08 CN CN202120054040.XU patent/CN215164286U/en active Active
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