CN214782978U - Anti-fatigue anti-cracking road - Google Patents
Anti-fatigue anti-cracking road Download PDFInfo
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- CN214782978U CN214782978U CN202120407042.2U CN202120407042U CN214782978U CN 214782978 U CN214782978 U CN 214782978U CN 202120407042 U CN202120407042 U CN 202120407042U CN 214782978 U CN214782978 U CN 214782978U
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Abstract
The utility model belongs to the technical field of road engineering technique and specifically relates to a crack road is prevented in antifatigue is related to, and it is equipped with the open slot including fracture ground bed layer, the crack department of fracture ground bed layer, is equipped with the repair layer in the open slot, is equipped with modified asphalt concrete layer on the fracture ground bed layer. The present application has the following effects: the repair layer can effectively promote the connection effect between the concrete structure of fracture ground stratum basale crack department both sides, and modified asphalt concrete layer can form the protection outside the fracture ground stratum basale to it is difficult to continue to produce the fracture to make the crack of fracture ground stratum basale.
Description
Technical Field
The application relates to the technical field of road engineering, in particular to an anti-fatigue anti-cracking road.
Background
The local damage of the road is caused by many reasons, such as design reasons, construction reasons, base material reasons, influence of an over-weight vehicle and the like. The local damage form of the road comprises edge gnawing, cracks, pot holes, broken corners and the like.
The utility model patent of grant publication No. CN209798471U discloses a prevent road structure of fracture, and it is from up including road bed, cement stabilized macadam subbase, filled large-grain size cement stabilized macadam subbase and pitch layer down in proper order. The filling type large-particle-size cement stabilized macadam subbase layer is a structural layer formed by using large-particle-size main aggregates as a frame and filling gaps among the large-particle-size main aggregates with cement stabilized macadam fillers.
In view of the above-mentioned related technologies, the inventor considers that the anti-cracking road structure is only suitable for a newly repaired road section, and cannot repair an original cracked road.
SUMMERY OF THE UTILITY MODEL
In order to repair an original cracked road, the application provides an anti-fatigue anti-cracking road.
The application provides an antifatigue prevents cracked road adopts following technical scheme:
the utility model provides an antifatigue prevents road that ftractures, includes the ground stratum basale that ftractures, the crack department of the ground stratum basale that ftractures is equipped with the open slot, be equipped with the repair layer in the open slot, be equipped with modified asphalt concrete layer on the ground stratum basale that ftractures.
Through adopting above-mentioned technical scheme, the repair layer can effectively promote the connection effect between the concrete structure of fracture ground stratum basale crack department both sides to can effectively reduce the superstructure of fracture ground stratum basale and transmit the stress to crack department, modified asphalt concrete layer can form the protection outside the fracture ground stratum basale, thereby is difficult to continue to produce the fracture with the crack that makes fracture ground stratum basale.
Optionally, the crack-resistant plaster is arranged at the crack of the cracked ground substrate layer.
By adopting the technical scheme, the crack-resistant adhesive further prevents cracks of the cracked substrate layer from being cracked continuously.
Optionally, the surface of the cracked foundation layer is a chiseled surface, and the chiseled surface is provided with an abdication at the anti-crack attachment position.
Through adopting above-mentioned technical scheme, the chisel hair side is used for strengthening the adhesion effect of tar sand leveling layer on the basement bed that ftractures to make the holistic structural stability of road structure can improve.
Optionally, an asphalt sand leveling layer is arranged between the cracked ground substrate layer and the modified asphalt concrete layer.
Through adopting above-mentioned technical scheme, the tar sand leveling layer not only can be used for making level to fracture ground stratum basale to can also improve holistic frostproofing effect of road structure and life, can strengthen road structure's intensity stability simultaneously.
Optionally, a glass fiber grating layer is arranged between the asphalt sand leveling layer and the modified asphalt concrete layer.
By adopting the technical scheme, the glass fiber grating layer can play a role in reinforcing the asphalt sand leveling layer and the modified asphalt concrete layer, so that the tensile strength and the deformation resistance of the asphalt mixture are improved, and the crack resistance of the modified asphalt concrete layer is enhanced.
Optionally, a bonding mortar layer is arranged at the crack of the cracked ground substrate layer, and the bonding mortar layer is located below the repairing layer.
By adopting the technical scheme, on one hand, the bonding mortar layer further enhances the bonding effect of the repairing layer so that the crack of the cracked ground substrate layer is more difficult to crack; on the other hand, the bonded mortar layer makes the repairing layer difficult to generate settlement at the groove bottom of the open groove, so that the repairing layer can keep good repairing effect.
Optionally, a connecting rib is arranged between the bonding mortar layer and the repairing layer, one end of the connecting rib is arranged in the bonding mortar layer, and the other end of the connecting rib is arranged in the repairing layer.
Through adopting above-mentioned technical scheme, the splice bar can strengthen the connection effect between repair layer and the bonding mortar layer to make the repair layer be difficult for deviating from in the open slot.
Optionally, the side wall of the open slot is provided with a pull groove, and the pull groove is arranged along the length direction of the open slot.
By adopting the technical scheme, the pull groove is used for enhancing the adhesion effect and the bonding capability between the repairing layer and the side wall of the open groove, so that a gap is not easy to generate between the repairing layer and the side wall of the open groove.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the repairing layer can effectively improve the connecting effect between concrete structures on two sides of the crack of the cracked foundation layer, and the modified asphalt concrete layer can form protection outside the cracked foundation layer, so that the crack of the cracked foundation layer is difficult to crack continuously;
2. by bonding the mortar layer, the bonding effect of the repairing layer is further enhanced, and the repairing layer is difficult to generate settlement at the bottom of the open slot.
Drawings
FIG. 1 is a schematic structural diagram of the whole anti-fatigue and anti-cracking road in the embodiment of the application;
fig. 2 is an enlarged view of a portion a in fig. 1.
Description of reference numerals: 1. a cracked ground substrate layer; 11. a road base layer; 12. a road surface layer; 13. an open slot; 131. groove drawing; 2. leveling the asphalt sand layer; 3. a modified asphalt concrete layer; 4. repairing the layer; 5. bonding a mortar layer; 6. connecting ribs; 7. anti-crack plaster; 8. a glass fiber grid layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses antifatigue prevents cracked road. Referring to fig. 1, the fatigue crack-resistant road includes a cracked ground base layer 1, an asphalt sand leveling layer 2, and a modified asphalt concrete layer 3.
The cracked ground base layer 1 is an original cracked road, the cracked ground base layer 1 generally comprises a road base layer 11 and a road surface layer 12, and the cracking position of the cracked ground base layer 1 is a road surface layer 12 of a concrete structure. The modified asphalt concrete layer 3 is positioned above the cracked ground base layer 1, and the modified asphalt concrete layer 3 protects the cracked ground base layer 1, so that cracks of the cracked ground base layer 1 are not prone to continuously cracking. The asphalt sand leveling layer 2 is located between the cracked ground base layer 1 and the modified asphalt concrete layer 3, and the asphalt sand leveling layer 2 is used for leveling the cracked ground base layer 1, so that the modified asphalt concrete layer 3 can be laid conveniently.
Referring to fig. 1 and 2, an open groove 13 is formed at the crack of the cracked foundation layer 1. The opening direction of the open slot 13 is the extending direction of the crack. The longitudinal section of the open slot 13 along the road paving direction is rectangular, and the direction of the notch of the open slot 13 faces to one side far away from the original road surface. The opening groove 13 is internally provided with a repairing layer 4, and the repairing layer 4 mainly comprises a concrete repairing agent. The concrete repairing agent comprises various types such as inorganic type, organic modification type and the like, and can be reasonably selected according to the actual road condition requirement of the cracked ground base layer 1 during construction. The repairing layer 4 can effectively improve the connecting effect between the concrete structures on two sides of the crack of the cracked foundation layer 1, and can effectively reduce the stress transmitted to the crack by the upper layer structure of the cracked foundation layer 1, so that the crack of the cracked foundation layer 1 is difficult to continuously crack.
The cracked foundation layer 1 is provided with a bonding mortar layer 5 at the crack. The bonding mortar layer 5 is positioned below the repairing layer 4, namely the bonding mortar layer 5 is used for embedding and filling the groove bottom of the open groove 13. The adhesive mortar layer 5 is mainly composed of adhesive mortar. During construction, an open slot 13 is arranged at the crack of the cracked foundation layer 1, then the crack and the open slot 13 are dedusted, and then the bonding mortar is poured into the crack at the slot bottom of the open slot 13 to form the bonding mortar layer 5. On the one hand, the bonding mortar layer 5 further enhances the bonding effect of the repair layer 4, so that the cracks of the cracked substrate layer 1 are more difficult to crack; on the other hand, the adhesive mortar layer 5 makes it difficult for the repair layer 4 to settle at the bottom of the open groove 13, so that the repair layer 4 can maintain a good repair effect.
The side wall of the opening groove 13 is provided with a pull groove 131. The pull grooves 131 are arranged along the length direction of the open groove 13, and a plurality of the pull grooves 131 are arranged at equal intervals along the thickness direction of the open groove 13. In this embodiment, three grooves 131 are taken as an example for explanation. When the repair layer 4 is embedded in the open groove 13, the repair layer 4 can be filled into the pull groove 131. The pull grooves 131 serve to enhance the adhesion effect and the bonding ability between the repair layer 4 and the sidewalls of the open grooves 13, so that a gap is not easily generated between the repair layer 4 and the sidewalls of the open grooves 13.
And a connecting rib 6 is arranged between the bonding mortar layer 5 and the repairing layer 4. The connecting rib 6 may be formed of a slender metal member such as a gas chain rivet. One end of the connecting rib 6 is arranged in the bonding mortar layer 5, and the other end of the connecting rib 6 is arranged in the repairing layer 4. The connecting ribs 6 can enhance the connecting effect between the repairing layer 4 and the bonding mortar layer 5, so that the repairing layer 6 is not easy to be separated from the opening groove 13. After the opening groove 13 is formed in the crack of the cracked foundation layer 1, one end of the connecting rib 6 can be inserted into the crack, and the other end of the opening groove 13 is reserved in the opening groove 13, so that the length of the connecting rib 6 needs to be selected according to the depth of the crack. After the connecting ribs 6 are arranged, the construction of the bonding mortar layer 5 and the repairing layer 4 can be carried out in sequence.
The crack-resistant paste 7 is arranged at the crack of the cracked ground base layer 1. The anti-crack pastes 7 are laid along the extending direction of the crack, and two adjacent anti-crack pastes 7 along the extending direction of the crack are mutually lapped. The anti-crack sticker 7 has strong tensile strength and can effectively resist the tensile stress at the crack, so that the tensile capacity of the road is improved. And the anti-crack paste 7 has certain viscoelasticity, and can play a role in energy dissipation and buffering so as to absorb the tensile energy of the road surface. The crack resistant sticker 7 further prevents the crack of the cracked base layer 1 from continuing to crack.
The surface of the base layer 1 is a roughened surface. Before construction, the asphalt sand leveling layer 2 firstly conducts scabbling treatment on the cracked ground base layer 1, and then the scabbed surface can be formed by cleaning the scabbed surface. The roughened surface is used to enhance the adhesion of the tar sand leveling layer 2 to the cracked foundation layer 1, thereby improving the structural stability of the overall road structure. The setback surface is provided with a abdication at the anti-crack paste 7, thereby preventing the bonding part of the anti-crack paste 7 from being infirm due to unevenness.
The tar sand leveling layer 2 is mainly formed by laying tar sand materials. The tar sand leveling layer 2 not only can be used for leveling the cracking ground base layer 1, but also has good low-temperature resistance and corrosion resistance, so that the tar sand leveling layer 2 can also improve the overall anti-freezing effect and the service life of the road structure, and meanwhile, the tar sand leveling layer 2 can also enhance the strength stability of the road structure.
A glass fiber grating layer 8 is arranged between the asphalt sand leveling layer 2 and the modified asphalt concrete layer 3. The glass fiber grating layer 8 is formed by laying glass fiber gratings. And after the asphalt sand leveling layer 2 is constructed and compacted, laying the glass fiber grating on the asphalt sand leveling layer 2. The glass fiber grating layer 8 can play a role in reinforcing the asphalt sand leveling layer 2 and the modified asphalt concrete layer 3, so that the tensile strength and the deformation resistance of the asphalt mixture are improved, and the crack resistance of the modified asphalt concrete layer 3 is enhanced.
The modified asphalt concrete layer 3 is mainly formed by laying modified asphalt concrete. The modified asphalt concrete is not easy to have low rutting deformation at high temperature and heavy load, and has good low-temperature performance. When the modified asphalt concrete is paved, the thickness of the modified asphalt concrete can be properly thickened. The thickness of the modified asphalt concrete layer 3 is increased, so that the temperature change of the cracked foundation layer 1 can be reduced, the tensile stress of the modified asphalt concrete layer 3 is reduced, the overall bending rigidity of the road structure can be increased, the deflection difference of the joint is reduced, and the shear stress of the modified asphalt concrete layer 3 is reduced.
The implementation principle of the anti-fatigue anti-cracking road in the embodiment of the application is as follows: during construction, the original cracked ground base layer 1 is trimmed. Opening grooves 13 are formed in the cracks of the cracked ground substrate layer 1, the opening grooves 13 are formed along the extending direction of the cracks, construction of drawing grooves 131 is conducted on the side walls of the opening grooves 13, and dust removal treatment is conducted on the opening grooves 13 and the cracks after construction is completed. Then one end of the connecting rib 6 is inserted into the slit, and the other end of the connecting rib 6 is reserved in the open slot 13. And then pouring the bonding mortar into the gap to form a bonding mortar layer 5, and after the bonding mortar layer 5 is finally set, filling a concrete repairing agent into the open slot 13 to form a repairing layer 4. Then, the crack-resistant paste 7 is adhered to the gap, and the surface of the cracked foundation layer 1 is roughened to form a roughened surface. Cleaning the cracked ground base layer 1, paving asphalt sand on the cracked ground base layer 1 to form an asphalt sand leveling layer 2, paving a glass fiber grating on the asphalt sand leveling layer 2 to form a glass fiber grating layer 8, and paving modified asphalt concrete on the glass fiber grating layer 8 to form a modified asphalt concrete layer 3.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A fatigue-resistant crack-resistant pavement comprising a cracked ground substrate layer (1), characterized in that: the crack ground stratum basale (1) crack department is equipped with open slot (13), be equipped with in open slot (13) and repair layer (4), be equipped with modified asphalt concrete layer (3) on the crack ground stratum basale (1).
2. The fatigue-resistant and crack-resistant road according to claim 1, wherein: the crack-resistant paste (7) is arranged at the crack of the crack ground substrate layer (1).
3. The fatigue-resistant and crack-resistant road according to claim 2, wherein: the surface of the cracking ground base layer (1) is a chiseling surface, and the chiseling surface is provided with a abdication at the anti-cracking paste (7).
4. The fatigue-resistant and crack-resistant road according to claim 1, wherein: and an asphalt sand leveling layer (2) is arranged between the cracking ground substrate layer (1) and the modified asphalt concrete layer (3).
5. The fatigue and crack resistant roadway of claim 4, wherein: and a glass fiber grating layer (8) is arranged between the asphalt sand leveling layer (2) and the modified asphalt concrete layer (3).
6. The fatigue-resistant and crack-resistant road according to claim 1, wherein: and a bonding mortar layer (5) is arranged at the crack of the cracked ground substrate layer (1), and the bonding mortar layer (5) is positioned below the repairing layer (4).
7. The fatigue-resistant and crack-resistant road according to claim 6, wherein: be equipped with between bonding mortar layer (5) and repair layer (4) splice bar (6), the one end of splice bar (6) is established in bonding mortar layer (5), and the other end of splice bar (6) is established in repair layer (4).
8. The fatigue-resistant and crack-resistant road according to claim 1, wherein: the side wall of the open slot (13) is provided with a pull slot (131), and the pull slot (131) is arranged along the length direction of the open slot (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120407042.2U CN214782978U (en) | 2021-02-24 | 2021-02-24 | Anti-fatigue anti-cracking road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120407042.2U CN214782978U (en) | 2021-02-24 | 2021-02-24 | Anti-fatigue anti-cracking road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214782978U true CN214782978U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120407042.2U Active CN214782978U (en) | 2021-02-24 | 2021-02-24 | Anti-fatigue anti-cracking road |
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| Country | Link |
|---|---|
| CN (1) | CN214782978U (en) |
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2021
- 2021-02-24 CN CN202120407042.2U patent/CN214782978U/en active Active
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