CN221118134U - Be applied to stable and anticracking rubble basic unit of road - Google Patents
Be applied to stable and anticracking rubble basic unit of road Download PDFInfo
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- CN221118134U CN221118134U CN202321491239.4U CN202321491239U CN221118134U CN 221118134 U CN221118134 U CN 221118134U CN 202321491239 U CN202321491239 U CN 202321491239U CN 221118134 U CN221118134 U CN 221118134U
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- 239000004568 cement Substances 0.000 claims abstract description 61
- 239000004575 stone Substances 0.000 claims abstract description 56
- 239000010426 asphalt Substances 0.000 claims abstract description 38
- 239000004567 concrete Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 238000005336 cracking Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims 3
- 238000011105 stabilization Methods 0.000 claims 3
- 239000000463 material Substances 0.000 abstract description 19
- 230000008901 benefit Effects 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 91
- 239000012615 aggregate Substances 0.000 description 18
- 229910052500 inorganic mineral Inorganic materials 0.000 description 12
- 239000011707 mineral Substances 0.000 description 12
- 239000000843 powder Substances 0.000 description 12
- 239000002699 waste material Substances 0.000 description 12
- 230000007613 environmental effect Effects 0.000 description 6
- 235000019738 Limestone Nutrition 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000006028 limestone Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000009418 renovation Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
The application relates to a stable and anti-cracking macadam base layer applied to a road, which comprises a stable and anti-cracking macadam base layer applied to the road, and comprises an underlayment, a high-performance crushed stone layer, a cement stable crushed stone layer, a cement concrete layer and an asphalt mixture layer, wherein the high-performance crushed stone layer is arranged on the upper surface of the underlayment, the cement stable crushed stone layer is arranged above the high-performance crushed stone layer, and the soil cement concrete layer is paved on the surface of the cement stable crushed stone layer. The application has the advantages of saving raw materials, protecting environment, reducing cost and the like, has obvious economic benefit and social benefit, meets the requirements of sustainable and coordinated development of economy, environment and society in China, has simple and economical and convenient recycling aggregate material taking, does not add extra cost for construction, can save about 30% of direct construction cost, can obtain local materials of recycling aggregate, utilizes materials such as crushed stone and the like required and used for construction, and greatly reduces the demand of mountain-opening and stone-taking.
Description
Technical Field
The application relates to the field of road macadam base, in particular to a stable and anti-cracking macadam base applied to a road.
Background
The cement stabilized macadam has the action principle that graded macadam is used as aggregate, a certain amount of cementing materials and enough mortar volume are adopted to fill gaps of the aggregate, and paving and compacting are carried out according to the embedding and extrusion principle; the compactness is close to compactness, the strength mainly depends on the principle of embedded locking between broken stones, and meanwhile, the mortar has enough mortar volume to fill gaps of aggregate; the cement stabilized macadam has high initial strength, the strength is increased along with the age, the cement stabilized macadam is not muddy when meeting rain, and the cement stabilized macadam is an ideal base material of an advanced pavement, and in advanced and secondary advanced roads built in China, about 12% of roads need to be renovated annually in recent years according to the design life and actual use condition of the roads, wherein a large number of old road renovation needs to adopt the measures of milling an old road base layer and then paving a new structural layer and a new surface layer.
At present, about 12% of roads need to be renovated each year, wherein a large number of old road renovation needs to adopt the measures of milling an old road base layer and then paving a new structural layer and a new surface layer, but the cement stabilized gravel layer in the old road base layer is directly transported to a waste landfill for treatment, so that a large amount of land is occupied, the surrounding environment is polluted, and meanwhile, the asphalt gravel layer in the old road base layer is easy to deform due to uneven stress during use, so that the service life of the whole pavement structure is short, and great limitation exists.
With respect to the related art as described above, a practical person considers a stable and crack-proof macadam foundation applied to a road.
Disclosure of utility model
In order to provide a stable and crack-resistant macadam foundation for application to roads.
The application provides a stable and anti-cracking macadam base layer applied to a road, which adopts the following technical scheme:
The utility model provides a be applied to stable and anticracking rubble basic unit of road, includes underlayment, high performance rubble layer, cement stabilize rubble layer, cement concrete layer, and asphalt mixture layer, high performance rubble layer sets up in the upper surface of underlayment, cement stabilize the rubble layer set up in high performance rubble layer top, soil cement concrete layer lays the surface at cement stabilizes the rubble layer, asphalt mixture layer top sets up with cement concrete layer top, high performance rubble layer is including connecting frame and gradation rubble layer, the connecting frame sets up with the inside of gradation rubble layer.
By adopting the technical scheme, the old cement stabilized macadam materials which are milled down can be recycled to the greatest extent, and the waste materials are not required to be transported to a waste landfill for treatment and are effectively converted into valuable production materials, so that the aim of environmental protection is realized in all directions, and the social and environmental benefits of the cement stabilized macadam recycling technology are significant in the long term compared with the direct economic benefits.
Optionally, the water content of the graded broken stone layer is 4.5%, the paving thickness of the high-performance broken stone layer is 20-25 cm, and the paving thickness of the subbase layer is 25-30 cm.
By adopting the technical scheme, when the water content is 4.5%, the shear strength of the graded broken stone layer reaches the peak value, and the use effect is better.
Optionally, the connection frame is made by nano alloy material, the connection frame overlooks for "S" shape, the connection frame is provided with a plurality of groups, and constitutes fixed knot through the welding between the connection frame.
By adopting the technical scheme, after the connecting frame is added, the deformation resistance of the graded broken stone layer is enhanced, and the method is more suitable for the condition of uneven deformation of the roadbed.
Optionally, the pavement thickness of the cement stabilized gravel layer is 20cm, the pavement thickness of the cement concrete layer is 20cm, and evenly distributed drill holes are formed in the cement concrete layer.
Through adopting above-mentioned technical scheme, through cement concrete layer surface evenly distributed's drilling, let the rainwater of infiltration continue ooze, guarantee sufficient rainwater infiltration ability, the road surface is ponding not.
Optionally, the paving thickness of the asphalt mixture layer is 18-22 cm.
By adopting the technical scheme, the asphalt mixing layer has high strength, high deformation resistance, high compressive strength and high compression resilience modulus, and can resist the action of heavy traffic load.
Optionally, the asphalt mixing layer comprises coarse aggregate, fine aggregate and mineral powder, wherein the coarse aggregate adopts limestone, the fine aggregate is stone dust with the same lithology, the mineral powder is ground by the limestone, and single particle of the mineral powder is smaller than 0.075mm.
By adopting the technical scheme, a certain amount of cement is added into asphalt to replace mineral powder, so that the adhesiveness between asphalt and stone can be improved, the asphalt has better high-temperature stability, the strength is larger than that of an asphalt crushed stone layer, the deformation resistance is strong, and the compressive strength is large.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The cement stabilized crushed stone layer has the advantages of saving raw materials, protecting environment, reducing cost and the like, has obvious economic benefit and social benefit, meets the requirements of sustainable and coordinated development of economy, environment and society in China, is simple and economic and convenient for reclaiming recycled aggregate, does not increase extra cost for construction, can save about 30% of direct construction cost, saves about 5% of other construction auxiliary and administrative management cost, can obtain materials locally, utilizes materials such as crushed stone scraps required and used for construction, greatly reduces the demand of mountain-cutting and stone-taking, effectively protects a large amount of raw materials of natural resources from transportation, saves energy sources, reduces air pollution caused by truck exhaust, can furthest regenerate and utilize old cement stabilized crushed stone materials which are milled down, does not need to transport the waste materials to a waste landfill for treatment, effectively converts the waste materials into valuable production materials, comprehensively realizes the purpose of environmental protection, and has social and environmental benefits of cement stabilized regeneration technology, and has great significance in the long term than direct economic benefit;
2. According to the utility model, the connecting frame is added in the graded broken stone layer, so that the deformation resistance of the graded broken stone layer is enhanced, the graded broken stone layer is more suitable for the condition of uneven deformation of roadbed, and meanwhile, the strength of the graded broken stone layer is improved due to the fact that the graded broken stone layer is added with the imitated steel fibers;
3. According to the utility model, through the asphalt mixture layer, the technical problem that the service life of the whole pavement structure is short due to uneven stress deformation is avoided, a certain amount of cement is added into asphalt to replace mineral powder, so that the water stability of the pavement structure can be improved, and meanwhile, a certain amount of cement is added into asphalt to replace mineral powder to improve the adhesiveness between asphalt and stone.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of a stabilized and anti-cracking ballast bed for a roadway according to the present utility model.
Fig. 2 is a schematic diagram of the overall structure of the present utility model.
Fig. 3 is a schematic structural view of the cement concrete layer of the present utility model.
Fig. 4 is a schematic structural view of a connection frame of the present utility model.
Fig. 5 is a schematic view of the structure of the high performance crushed stone layer of the present utility model.
Reference numerals illustrate: 1. a base layer; 2. a high performance crushed stone layer; 3. cement stabilizing the crushed stone layer; 4. a cement concrete layer; 5. an asphalt mixture layer; 6. a connection frame; 7. grading the crushed stone layer.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses a stable and anti-cracking macadam foundation applied to a road. Referring to fig. 1 to 5, a stable and anti-cracking gravel base layer applied to a road comprises an underlayment 1, a high-performance gravel layer 2, a cement stabilized gravel layer 3, a cement concrete layer 4 and an asphalt mixture layer 5, wherein the high-performance gravel layer 2 is arranged on the upper surface of the underlayment 1, the cement stabilized gravel layer 3 is arranged above the high-performance gravel layer 2, the soil cement concrete layer 4 is paved on the surface of the cement stabilized gravel layer 3, the top of the asphalt mixture layer 5 is arranged above the cement concrete layer 4, the high-performance gravel layer 2 comprises a connecting frame 6 and a graded gravel layer 7, the connecting frame 6 is arranged inside the graded gravel layer 7, old cement stabilized gravel materials milled down can be recycled to the maximum extent, the waste materials do not need to be transported to a waste landfill for treatment, and are effectively converted into valuable production materials, the aim of environmental protection is realized in all directions, and social and environmental benefits of a cement stabilized gravel regeneration technology are significant in terms of direct economic benefit.
Referring to fig. 1 to 5, the graded crushed stone layer 7 is made of graded crushed stone, steel-like fibers and water, the diameter of the steel-like fibers is 25mm, the steel-like fibers are added into the graded crushed stone material at a content of 0.1%, and the strength of the graded crushed stone layer 7 is improved by adding the steel-like fibers, so that the graded crushed stone layer 7 is more suitable for the condition of uneven deformation of roadbed.
Referring to fig. 1-5, the water content of the graded broken stone layer 7 is 4.5%, the paving thickness of the high-performance broken stone layer 2 is 20-25 cm, the paving thickness of the subbase layer 1 is 25-30 cm, and when the water content is 4.5%, the shearing strength of the graded broken stone layer 7 reaches the peak value, so that the use effect is better.
Referring to fig. 1-5, the connecting frame 6 is made of nano alloy material, the connecting frame 6 is regarded as an S shape in a depression mode, the connecting frame 6 is provided with a plurality of groups, a fixed structure is formed between the connecting frames 6 through welding, after the connecting frame 6 is added, the deformation resistance of the graded broken stone layer 7 is enhanced, and the method is more suitable for the condition of uneven deformation of roadbed.
Referring to fig. 1-5, the cement stabilized crushed stone layer 3 is made of recycled aggregate, cement and water, wherein the recycled aggregate is waste cement stabilized crushed stone material, the cement proportion is 5% -6%, the water proportion is 5.5% -5.6%, the recycled aggregate can be obtained locally, the utilization of materials such as crushed stone and the like required and used in construction is greatly reduced, the demand of mountain opening and stone taking is greatly reduced, and a large amount of raw materials of natural resources are effectively protected from being transported.
Referring to fig. 1-5, the paving thickness of the cement stabilized gravel layer 3 is 20cm, the paving thickness of the cement concrete layer 4 is 20cm, evenly distributed drill holes are formed in the cement concrete layer 4, so that the infiltrated rainwater can continuously infiltrate downwards, and enough rainwater infiltration capacity is ensured, and no water accumulation exists on the pavement.
Referring to fig. 1-5, the asphalt mixture layer 5 has a paving thickness of 18-22 cm, the asphalt mixture layer 5 is made of aggregates, mineral powder, cement and a binder, the binder is asphalt, the aggregates comprise coarse aggregates and fine aggregates, the petroleum ratio of the asphalt mixture layer 5 is 3% -3.6%, the optimal use amount of asphalt is 3%, the strength of the asphalt mixture layer 5 is larger than that of an asphalt crushed stone layer, the deformation resistance is strong, the compressive strength is large, the compressive resilience modulus is not worse than that of a traditional asphalt crushed stone layer, and the effect of heavy traffic load can be resisted.
Referring to fig. 1-5, coarse aggregate adopts limestone, fine aggregate is stone dust of the limestone, mineral powder is ground by the limestone, single particle of the ground mineral powder is smaller than 0.075mm, and the ratio of the mineral powder to cement is 1:10, a certain amount of cement is added into asphalt to replace mineral powder, so that the adhesiveness between asphalt and stone can be improved, the asphalt has better high-temperature stability, the strength is larger than that of an asphalt crushed stone layer, the deformation resistance is strong, and the compressive strength is large.
The implementation principle of the stable and anti-cracking macadam base layer applied to the road provided by the embodiment of the application is as follows: the recycled aggregate in the cement stabilized crushed stone layer 3 can be obtained locally, the utilization of materials such as crushed stone scraps and the like which are needed and used in construction is greatly reduced, the demand of mountain making and stone taking is greatly reduced, a large amount of raw materials of natural resources are effectively protected from being transported, energy sources are saved, air pollution caused by tail gas discharged by trucks is reduced, the milled old cement stabilized crushed stone materials can be recycled to the greatest extent, the waste materials are not required to be transported to a waste landfill for treatment, the waste materials are effectively converted into valuable production materials, the technical problem that the service life of the whole pavement structure is short due to uneven stress deformation is solved through the asphalt mixture layer 5, the adhesiveness of asphalt and stone can be improved by adding a certain amount of cement substitute mineral powder into asphalt, the asphalt stabilized crushed stone layer has better high-temperature stability, the strength ratio asphalt crushed stone layer is strong in deformation resistance, the compression strength is high, and the rebound modulus is not poor than that of the conventional crushed stone layer is avoided.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (5)
1. A stable and crack-resistant ballast bed for a roadway, characterized by: including underlayer (1), high performance gravel layer (2), cement stabilization gravel layer (3), cement concrete layer (4), and asphalt mixture layer (5), high performance gravel layer (2) set up in the upper surface of underlayer (1), cement stabilization gravel layer (3) set up in high performance gravel layer (2) top, cement concrete layer (4) are laid on the surface of cement stabilization gravel layer (3), asphalt mixture layer (5) top set up with cement concrete layer (4) top, high performance gravel layer (2) are including connecting frame (6) and graded gravel layer (7), connecting frame (6) set up with the inside of graded gravel layer (7).
2. A stabilized and anti-cracking ballast bed for road applications according to claim 1, wherein: the water content of the graded broken stone layer (7) is 4.5%, the paving thickness of the high-performance broken stone layer (2) is 20-25 cm, and the paving thickness of the subbase layer (1) is 25-30 cm.
3. A stabilized and anti-cracking ballast bed for road applications according to claim 1, wherein: the connecting frames (6) are made of nano alloy materials, the connecting frames (6) are prone to be S-shaped, the connecting frames (6) are provided with a plurality of groups, and the connecting frames (6) form a fixed structure through welding.
4. A stabilized and anti-cracking ballast bed for road applications according to claim 1, wherein: the pavement thickness of the cement stabilized gravel layer (3) is 20cm, the pavement thickness of the cement concrete layer (4) is 20cm, and evenly distributed drill holes are formed in the cement concrete layer (4).
5. A stabilized and anti-cracking ballast bed for road applications according to claim 1, wherein: the paving thickness of the asphalt mixture layer (5) is 18-22 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321491239.4U CN221118134U (en) | 2023-06-13 | 2023-06-13 | Be applied to stable and anticracking rubble basic unit of road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321491239.4U CN221118134U (en) | 2023-06-13 | 2023-06-13 | Be applied to stable and anticracking rubble basic unit of road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221118134U true CN221118134U (en) | 2024-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321491239.4U Active CN221118134U (en) | 2023-06-13 | 2023-06-13 | Be applied to stable and anticracking rubble basic unit of road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221118134U (en) |
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2023
- 2023-06-13 CN CN202321491239.4U patent/CN221118134U/en active Active
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