CN115217008A - Method for widening treatment of solid waste by using calcium carbide to stabilize regenerated granular road bed - Google Patents
Method for widening treatment of solid waste by using calcium carbide to stabilize regenerated granular road bed Download PDFInfo
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- CN115217008A CN115217008A CN202210865126.XA CN202210865126A CN115217008A CN 115217008 A CN115217008 A CN 115217008A CN 202210865126 A CN202210865126 A CN 202210865126A CN 115217008 A CN115217008 A CN 115217008A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000002910 solid waste Substances 0.000 title claims abstract description 26
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 title claims description 21
- 239000005997 Calcium carbide Substances 0.000 title claims description 20
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000002245 particle Substances 0.000 claims abstract description 29
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 239000010881 fly ash Substances 0.000 claims abstract description 17
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 16
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 16
- 239000004571 lime Substances 0.000 claims abstract description 16
- 238000003801 milling Methods 0.000 claims abstract description 14
- 239000002699 waste material Substances 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 58
- 238000005096 rolling process Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000011384 asphalt concrete Substances 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 238000005056 compaction Methods 0.000 claims 1
- 239000008187 granular material Substances 0.000 abstract description 4
- 239000002894 chemical waste Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000002440 industrial waste Substances 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/003—Foundations for pavings characterised by material or composition used, e.g. waste or recycled material
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a method for widening a road bed of solid waste regenerated granules stabilized by using electric lime, and relates to the technical field of energy conservation and environmental protection. The widening treatment method for the solid waste by utilizing the electric lime to stabilize the regenerated granular material road bed is characterized by comprising the following steps of: the specific operation is as follows: firstly, judging whether a lower bearing layer needs to be treated according to the original pavement damage condition, and damaging the substrate caused by uneven settlement. The method for widening and processing the solid waste and the regenerated granular material stabilized by the electric lime is suitable for reconstruction and expansion of the existing road engineering, fully utilizes industrial and chemical waste materials and original pavement materials, changes waste into valuable by mixing and proportioning several waste materials, saves resources to the maximum extent, is energy-saving and environment-friendly, has low construction cost, realizes original milling and planing and reutilization of solid waste materials by using the original pavement, broken plates, widened road bed, steps, electric lime, fly ash and small particles, saves resources, and can achieve the regenerated material with the same strength as other mixed materials.
Description
Technical Field
The invention relates to the technical field of energy conservation and environmental protection, in particular to a method for widening and treating a solid waste utilization calcium carbide stabilized regenerated granular material road bed.
Background
The traditional road reconstruction and extension construction usually mills old road surfaces to be abandoned, and newly widened road surfaces are paved by adopting new mixed materials, so that resources are wasted, the environment is polluted, and a large amount of mountain rocks are mined to easily cause environmental damage.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for widening and treating a road bed by utilizing solid wastes and calcium carbide to stabilize and regenerate aggregates, which solves the problems that the old road surface is usually milled and abandoned and the newly widened road surface is paved by adopting a new mixture in the traditional road reconstruction and expansion construction, so that the resources are wasted, the environment is polluted, and the environment is easily damaged due to the exploitation of a large amount of mountain stones.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for widening and treating a solid waste by utilizing a calcium carbide stabilized regenerated granular road bed is characterized by comprising the following steps: the specific operation is as follows:
firstly, judging whether a lower bearing layer needs to be processed or not according to the original pavement damage condition, milling the pavement and a base layer or a subbase layer completely for damage caused by uneven settlement of the base, replacing base filler or directly carrying out smooth rolling, and adding a geogrid if necessary. If the road surface is damaged by water, the road surface is milled directly to be changed into broken plates and small particles.
And then clearing the surface of the roadbed of the widened road bed, if the bearing capacity of the original foundation does not meet the requirement, replacing and filling, and rolling the widened road bed for several times until the compactness and the deflection value meet the specification and design requirements. If the base layer or the subbase layer of the original pavement is not damaged, digging steps on the side surfaces of the original pavement, checking the verticality and the flatness of the side walls of the steps, and brushing cement slurry on the steps; if the base layer or the subbase layer of the original pavement is damaged due to the uneven settlement of the roadbed, the pavement, the base layer and the subbase layer of the original pavement are milled completely, and the reclaimed materials are paved and rolled together with the pavement surface layer of the widened road bed after being mixed;
and finally, recovering the milled broken plates and small particles, processing and producing by adopting a plant mixing method or a road mixing method, and adding calcium carbide, fly ash and water to mix into a new material. Before large-scale road reconstruction and expansion construction, a test section of not less than 200 meters is required for reclaimed material utilization, whether the blending ratio of the waste materials meets the requirement or not is determined through tests, when a base layer or a subbase layer is paved on the top surface of a newly-widened road bed, layered paving and layered rolling are required, cross-seam rolling is required to be adopted at the longitudinal seam, and if necessary, a glass fiber net is additionally arranged at the same elevation position of the top surface of the new-old combined base layer or the subbase layer to prevent reflection cracks. Paving and rolling the new and old widened pavement base course, and then integrally paving a concrete or asphalt concrete pavement;
wherein the steps are cut and formed by a cutting machine; the calcium carbide lime is solid waste generated in a chemical plant; the fly ash is solid waste generated by power plants or industrial heating coal; the small particles are solid small particles formed in the original pavement milling and crushing process.
Preferably, the original pavement can be a concrete pavement or a bituminous concrete pavement, before widening and reconstruction of the road, if the original pavement is damaged due to the damage of a lower bearing layer, after milling the original pavement, milling and crushing a base layer and an underlayer, rolling and flattening the original road bed again, and paving a geogrid on the top of the road bed if necessary. Adding calcium carbide, fly ash and water into the crushed material, mixing and spreading and rolling the mixture synchronously with the widened roadbed surface material.
Preferably, the original pavement is milled directly without serious pavement damage, and is changed into broken plates and small particles with different particle sizes, and after milling of the upper layer is finished, steps are dug on the base layer or the subbase layer of the original pavement.
Preferably, the crushed plate is recycled, the whole waste can be recycled to a mixing station, calcium carbide lime, fly ash and water are added to be mixed into a new material, and the road mixing method can be directly adopted for construction on site.
Preferably, when new materials are paved on the steps, the flatness and the verticality of the cutting seams must be checked, a layer of cement paste is brushed before paving, the interlayer adhesion force is improved, and the old and new joint parts are rolled across the seams in the paving process.
(III) advantageous effects
The invention provides a method for widening and treating a solid waste utilization calcium carbide stabilized regenerated granular road bed. The method has the following beneficial effects:
the widening treatment method of the solid waste utilization electric lime stabilized recycled aggregate road bed is suitable for reconstruction and extension of existing road engineering, industrial and chemical waste materials and original pavement materials are fully utilized, a stable structure is formed by mixing and proportioning a plurality of waste materials, waste is changed into valuable, resources are saved to the greatest extent, the widening treatment method is energy-saving and environment-friendly, the construction cost is low, original pavement, broken plates, the widened road bed, steps, electric lime, fly ash and small particles are used, original milling and solid waste reutilization is achieved, resources are saved, and recycled materials with the same strength as other mixed materials can be achieved.
Drawings
FIG. 1: the invention is a structural schematic diagram of the original pavement improvement;
FIG. 2 is a schematic diagram: the invention is a structural schematic diagram of the laying condition of small particles;
in the figure: 1. original pavement 2, broken plates 3, widened road bed 4, steps 5, calcium carbide dust 6, fly ash 7 and small particles.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a method for widening and treating a solid waste regenerated particle road bed stabilized by using electric lime comprises the following specific operations:
firstly, judging whether a lower bearing layer needs to be processed or not according to the original pavement 1 damage condition, milling the pavement and a base layer or a subbase layer completely for damage caused by uneven settlement of the base, replacing base filler or directly carrying out smooth rolling, and adding a geogrid if necessary. If the road surface is damaged by water, the road surface is milled directly to change the road surface into the broken plates 2 and the small particles 7.
And then, clearing the surface of the roadbed of the widened roadbed 3, if the bearing capacity of the original foundation does not meet the requirement, replacing and filling, and rolling the widened roadbed 3 by times until the compactness and the deflection value meet the specification and design requirements. If the base layer or the subbase layer of the original pavement 1 is not damaged, digging a step 4 on the side surface of the original pavement, checking the verticality and the flatness of the side wall of the step 4, and brushing cement slurry on the step 4 for one time; if the base layer or the subbase layer of the original pavement 1 is damaged due to uneven settlement of the roadbed, the pavement, the base layer and the subbase layer of the original pavement 1 are milled, and the mixed reclaimed materials are paved and rolled together with the pavement surface layer of the widened road bed 3;
and finally, recycling the milled crushing plate 2 and the small particles 7, processing and producing by adopting a plant mixing method or a road mixing method, and adding calcium carbide 5, fly ash 6 and water to mix into a new material. Before large-scale road reconstruction and extension construction, a test section of not less than 200 meters is required for reclaimed material utilization, tests determine whether the waste material mixing matching specific energy meets requirements, when a base layer or a subbase layer is paved on the top surface of a newly-widened road bed 3, layered paving and layered rolling are required, cross-seam rolling is required to be adopted at longitudinal seams, and if necessary, a glass fiber net is additionally arranged at the same elevation position of the top surfaces of the new and old combined base layer or subbase layer to prevent reflection cracks. Paving and rolling the new and old widened pavement base, and then integrally paving a concrete or asphalt concrete pavement;
wherein the step 4 is cut and formed by a cutting machine; the calcium carbide 5 is solid waste generated in a chemical plant; the fly ash 6 is solid waste generated by power plants or industrial heating coal; the small particles 7 are solid small particles formed in the milling and crushing process of the original pavement 1;
wherein, original road surface 1 can be concrete road surface or bituminous concrete road surface, before the road is widened and reformed, if original road surface 1 damages because the lower layer is destroyed, mill and plane original road surface 1 after, basic unit and underlayment should also mill and plane the breakage, grind and level original road bed again, when necessary, the road bed top lays geogrid. Adding calcium carbide 5, fly ash 6 and water into the crushed material, mixing and synchronously paving, rolling and molding the mixture with the surface material of the widened road bed 3;
when the original pavement 1 is not seriously damaged, the original pavement 1 is milled and milled directly and is changed into broken plates 2 and small particles 7 with different particle sizes, and after milling and milling of the upper layer is finished, steps 4 are dug on a base layer or a subbase layer of the original pavement 1;
the crushed plate 2 is recycled, the whole waste can be recycled to a mixing station, and the calcium carbide 5, the fly ash 6 and water are added to be mixed into a new material, or the road mixing method can be directly adopted for construction on site;
when new materials are paved on the step 4, the flatness and the verticality of the joint seams must be checked, a layer of cement paste is brushed before paving, the interlayer adhesive force is improved, and the joint positions of new parts and old parts are rolled across the joint seams in the paving process.
In conclusion, the method for widening and treating the solid waste by utilizing the lime stabilized recycled aggregate road bed is suitable for reconstruction and expansion of the existing road engineering, fully utilizes industrial and chemical waste materials and the original road surface materials, forms a stable structure by mixing and proportioning a plurality of waste materials, changes waste into valuable, saves resources to the maximum extent, saves energy, protects environment and has low construction cost, realizes the original milling and planing and the reutilization of solid waste materials by using the original road surface, the broken plate, the widened road bed, the steps, the lime, the fly ash and the small particles, saves resources, and can achieve the recycled materials with the same strength as other mixed materials.
Compared with the existing production mode, the invention has the advantages that: only the original road surface, broken plates, widened road bed, steps, calcium carbide dust, fly ash and small particles are used, and the reconstruction and extension construction of the original road is realized. The technology is energy-saving and environment-friendly, fully utilizes various wastes for blending, does not pollute the environment, realizes the reutilization of chemical engineering and pavement wastes, forms a pavement regeneration mixture with higher strength, and is suitable for the construction of base layers and subbase layers of second-level and lower expressways or subbase layers of more than one-level expressways.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A method for widening and treating a solid waste by utilizing a calcium carbide stabilized regenerated granular road bed is characterized by comprising the following steps: the specific operation is as follows:
firstly, judging whether a lower bearing layer needs to be processed or not according to the damage condition of the original pavement (1), milling the pavement and a base layer or a subbase layer completely for the damage caused by the uneven settlement of the base, replacing base filler or directly flattening and rolling, and adding a geogrid if necessary. If the road surface is damaged by water, the road surface is milled directly to be changed into broken plates (2) and small particles (7).
And then clearing the table on the roadbed of the widened roadbed (3), if the bearing capacity of the original foundation does not meet the requirement, replacing and filling, and rolling the widened roadbed (3) by multiple times until the compaction degree and the deflection value meet the specification and design requirements. If the base layer or the subbase layer of the original pavement (1) is not damaged, digging steps (4) on the side surfaces of the original pavement, checking the verticality and the flatness of the side walls of the steps (4), and brushing cement slurry on the steps (4) for one time; if the base layer or the subbase layer of the original pavement (1) is damaged due to uneven settlement of the roadbed, the pavement, the base layer and the subbase layer of the original pavement (1) are milled, and the mixed reclaimed materials are paved and rolled together with the pavement surface layer of the widened road bed (3);
and finally, recycling the milled crushing plate (2) and the small particles (7), processing and producing by adopting a plant mixing method or a road mixing method, adding the calcium carbide (5), the fly ash (6) and water, and mixing to obtain a new material. Before large-scale road reconstruction and expansion construction, a test section of not less than 200 meters is required for reclaimed material utilization, whether the blending ratio of the waste materials meets the requirement or not is determined through tests, when a base layer or a base bottom layer of a newly-expanded road bed (3) is paved on the top surface, layered paving and layered rolling are required, cross-seam rolling is required to be adopted at the longitudinal seam, and a glass fiber net is additionally arranged at the same elevation position of the top surface of the newly-expanded base layer or the base bottom layer to prevent reflection cracks. Paving and rolling the new and old widened pavement base course, and then integrally paving a concrete or asphalt concrete pavement;
wherein the step (4) is cut and formed by a cutting machine; the calcium carbide (5) is solid waste generated in a chemical plant; the fly ash (6) is solid waste generated by power plants or industrial heating coal; the small particles (7) are solid small particles formed in the milling and crushing process of the original pavement (1).
2. The method for widening the treatment process of the solid waste regenerated particle road bed stabilized by using the electric lime as claimed in claim 1, is characterized in that: the original pavement (1) can be a concrete pavement or a bituminous concrete pavement, before the road is widened and reformed, if the original pavement (1) is damaged due to the damage of a lower bearing layer, after the original pavement (1) is milled, a base layer and a subbase layer are milled and crushed, the original road bed is rolled again, and the top of the road bed is paved with a geogrid when necessary. Adding the calcium carbide (5), the fly ash (6) and water into the crushed materials, mixing and synchronously paving, rolling and molding the ground materials of the road widening bed (3).
3. The method for widening the treatment process of the solid waste regenerated particle road bed stabilized by using the electric lime as claimed in claim 1, is characterized in that: original road surface (1) is directly milled and milled original road surface (1) without taking place the serious road surface damage condition, becomes broken plate (2) and tiny particle (7) of the equidimension not of particle diameter, and the back is milled and milled to the upper strata and is accomplished, digs step (4) on the basic unit or the subbase layer on original road surface (1).
4. The method for widening the treatment process of the solid waste regenerated particle road bed stabilized by using the electric lime as claimed in claim 1, is characterized in that: the crushed plate (2) is recycled, the whole waste can be recycled to a mixing station, calcium carbide (5), fly ash (6) and water are added to be mixed into a new material, and the road mixing method can be directly adopted for construction on site.
5. The method for widening the treatment process of the solid waste regenerated particle road bed stabilized by using the electric lime as claimed in claim 1, is characterized in that: and new materials are paved on the step (4), the flatness and the verticality of the cutting seams must be checked, a layer of cement paste is brushed before paving, the interlayer adhesion force is improved, and the old and new joint parts are rolled across the seams in the paving process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210865126.XA CN115217008A (en) | 2022-07-21 | 2022-07-21 | Method for widening treatment of solid waste by using calcium carbide to stabilize regenerated granular road bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210865126.XA CN115217008A (en) | 2022-07-21 | 2022-07-21 | Method for widening treatment of solid waste by using calcium carbide to stabilize regenerated granular road bed |
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| CN115217008A true CN115217008A (en) | 2022-10-21 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205329451U (en) * | 2015-12-08 | 2016-06-22 | 上海颖川佳固信息工程股份有限公司 | Foamed asphalt cold in -place recycling mixture pavement |
| CN107227667A (en) * | 2017-06-19 | 2017-10-03 | 四川交投建设工程股份有限公司 | A kind of Asphalt Pavement with Flexible Base splices Widening Construction method |
| CN111576127A (en) * | 2020-06-18 | 2020-08-25 | 湖南交通国际经济工程合作有限公司 | Splicing structure for new and old road surfaces of highway engineering and construction method thereof |
| CN111778802A (en) * | 2020-06-12 | 2020-10-16 | 中国二十冶集团有限公司 | Municipal road reconstruction project asphalt pavement lap joint construction method and lap joint structure |
| CN112982050A (en) * | 2021-01-27 | 2021-06-18 | 绍兴市城投再生资源有限公司 | Regenerated roadbed base filler and regenerated roadbed construction method |
-
2022
- 2022-07-21 CN CN202210865126.XA patent/CN115217008A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205329451U (en) * | 2015-12-08 | 2016-06-22 | 上海颖川佳固信息工程股份有限公司 | Foamed asphalt cold in -place recycling mixture pavement |
| CN107227667A (en) * | 2017-06-19 | 2017-10-03 | 四川交投建设工程股份有限公司 | A kind of Asphalt Pavement with Flexible Base splices Widening Construction method |
| CN111778802A (en) * | 2020-06-12 | 2020-10-16 | 中国二十冶集团有限公司 | Municipal road reconstruction project asphalt pavement lap joint construction method and lap joint structure |
| CN111576127A (en) * | 2020-06-18 | 2020-08-25 | 湖南交通国际经济工程合作有限公司 | Splicing structure for new and old road surfaces of highway engineering and construction method thereof |
| CN112982050A (en) * | 2021-01-27 | 2021-06-18 | 绍兴市城投再生资源有限公司 | Regenerated roadbed base filler and regenerated roadbed construction method |
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Application publication date: 20221021 |