CN113818299A - Application process of building waste roadbed filling aggregate - Google Patents
Application process of building waste roadbed filling aggregate Download PDFInfo
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- CN113818299A CN113818299A CN202010570237.9A CN202010570237A CN113818299A CN 113818299 A CN113818299 A CN 113818299A CN 202010570237 A CN202010570237 A CN 202010570237A CN 113818299 A CN113818299 A CN 113818299A
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- 239000002699 waste material Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 17
- 239000004033 plastic Substances 0.000 claims abstract description 17
- 239000010426 asphalt Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 14
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 14
- 229920002472 Starch Polymers 0.000 claims description 7
- 239000010440 gypsum Substances 0.000 claims description 7
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 7
- -1 polyethylene sodium Polymers 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 241001536352 Fraxinus americana Species 0.000 claims description 5
- 239000002956 ash Substances 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000002689 soil Substances 0.000 claims description 5
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000004567 concrete Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000002910 solid waste Substances 0.000 description 1
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Images
Classifications
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- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
-
- 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
-
- 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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses an application process of building rubbish roadbed filling aggregate, which comprises the following steps: step 1, selecting raw materials, step 2, preparing roadbed filling materials, step 3, excavating a roadbed, step 4, paving and rolling, step 5, paving a steel-plastic grating, step 6, sprinkling water, step 7, and pouring asphalt. The invention realizes the filling of the roadbed by using the construction waste filling aggregate, solves the application problem of the construction waste in roadbed engineering, improves the utilization rate of the construction waste, provides a reliable choice for roadbed filling materials and methods, and brings huge economic and social benefits.
Description
Technical Field
The invention relates to the technical field of highway engineering, in particular to an application process of building rubbish roadbed filling aggregate.
Background
At present, the urbanization process in China is rapidly developed, the quantity of waste building garbage generated by municipal construction, old city reconstruction, dynamic removal, cement concrete road reconstruction and the like is increased day by day, the quantity of urban building garbage per year in China is counted to be more than 5 million tons, the main components of the building garbage are waste bricks, mortar, concrete and brick-concrete building garbage, the building garbage has different components and poor mechanical property and cannot be directly used as a road material, and the building garbage can not be combusted, so the building garbage is treated by means of landfill, stacking and the like, the treatment modes occupy a large amount of land, consume a large amount of treatment funds and pollute the environment. Meanwhile, a large amount of materials applied in the road base material are derived from natural stone ores, excessive mining and extraction of the materials do not generate great influence on the environment, and limited natural resources are exhausted. Therefore, a large amount of brick-concrete building waste in cities is utilized to prepare the road base material, waste is changed into valuable, the policies of national comprehensive resource utilization and sustainable development are met, the waste landfill land is saved, the environmental pollution is reduced, and meanwhile, the cost of the road base material is also reduced.
The utilization of the construction waste mainly has the following problems: the construction waste recycled aggregate is different from the traditional aggregate, such as strength, durability and water stability, the traditional aggregate application method is not suitable for the construction waste recycled aggregate, the engineering quality cannot be guaranteed, and a series of safety problems can be caused, so that a new construction process is very needed to guarantee the construction quality.
Disclosure of Invention
Aiming at the problems of serious surplus of recycled aggregate of the current construction waste and immature application, the invention provides an application process of the construction waste roadbed filling aggregate by combining excellent mechanical and engineering properties of the construction waste, so that the construction waste is recycled.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an application process of building rubbish roadbed filling aggregate comprises the following steps:
step 1, selecting raw materials
The particle size of the recycled aggregate of the construction waste of the first level is 9-15 mm, and the particle size of the recycled aggregate of the construction waste of the second level is 5-9 mm; the particle size of the recycled aggregate of the third-level construction waste is less than 5 mm;
step 2, preparing roadbed filling material
Selecting and uniformly stirring all levels of construction waste recycled aggregate according to a proportion, and stirring other raw materials to obtain a construction waste mixture as a roadbed filling material; firstly, building waste recycled aggregate with the particle sizes of 9-15 mm and 5-9 mm is put in, then the building waste recycled aggregate with the particle size of less than 5mm is put in and uniformly stirred, and then other materials are put in and respectively and sequentially uniformly stirred to obtain uniformly distributed roadbed filling materials;
step 3, excavating roadbed
Clearing surface garbage, leveling a road surface, excavating soil in an original roadbed, and finishing steps at the edge of the roadbed;
step 4, paving and rolling
Firstly, drawing a square grid, then spreading, vibrating layer by layer, leveling and plastering;
step 5, paving the steel-plastic grating
Steel-plastic geogrids are laid between every two layers of roadbed filling materials, if only one layer is used, the steel-plastic geogrids are laid before asphalt is poured, and two adjacent steel-plastic geogrids need to be lapped;
step 6, sprinkling water
Watering should be carried out immediately after the roadbed is filled and rolled, the rolled roadbed surface is required to be kept in a wet state, vehicles are strictly forbidden to pass, and the watering amount is generally controlled to be 3-5 kg/m2A proper amount;
step 7, pouring asphalt
Pouring of asphalt can be carried out after the steps are completed, and pouring is carried out in three layers, wherein each layer is 4 cm.
Preferably, in the step 1, samples are extracted according to a proportion of one in a thousand for strength tests, and the construction waste recycled aggregate with the test result meeting the standard requirement is stacked in a warehouse.
Preferably, the roadbed filling material in the step 2 comprises the following components in parts by weight: 1.0 part of white ash, 0.75-2.0 parts of dedusting ash, 1.5-3.0 parts of fly ash, 8.25-12.0 parts of first-level construction waste recycled aggregate, 12.75-18.0 parts of second-level construction waste recycled coarse aggregate, 8-11.5 parts of third-level construction waste recycled coarse aggregate, 2 parts of gypsum powder, 1 part of fatty alcohol polyethylene sodium sulfonate, 1 part of anhydrous sodium sulphate, 0.5 part of starch ether and 0.5 part of silicic acid sol.
Preferably, the roadbed filling material comprises the following components in parts by weight: 1.0 part of white ash, 1.0-1.5 parts of dedusting ash, 2.5-3.0 parts of fly ash, 17.0 parts of first-level construction waste recycled aggregate recycled coarse aggregate, 11.5-11.8 parts of second-level construction waste recycled aggregate, 10-13.8 parts of third-level construction waste recycled aggregate, 1.5 parts of gypsum powder, 1.5 parts of fatty alcohol polyethylene sodium sulfonate, 1 part of anhydrous sodium sulphate, 0.5 part of starch ether and 1 part of silicic acid sol; 1 part of gypsum powder, 1 part of fatty alcohol-polyethylene sodium sulfonate, 1.5 parts of anhydrous sodium sulphate, 1.5 parts of starch ether and 0.7 part of silicic acid sol.
Preferably, the height of each step in the step 3 is 20-50 cm, and the width of each step is 40-75 cm.
Preferably, in the step 4, "drawing and feeding" is strictly performed on each layer of paving of the roadbed, a square grid is scattered by using lime lines before paving, the size of the determined square grid is 8m × 8m, 10m × 10m and 12m × 12m, a reverse feeding mode is preferentially adopted when a dump truck unloads soil, a construction mode of multilayer paving and layer-by-layer rolling is adopted, the virtual paving thickness of each layer is 20-35 cm, when the virtual paving thickness exceeds the maximum thickness of one-time paving, the two-time paving and rolling are carried out, the interval time of two-layer paving does not exceed 30min, the thickness of the lower layer is about greater than that of the upper layer, the thickness of the lower layer is 3/5, mechanical leveling and rolling are needed after each layer of paving is completed, the rolling times are 5-12 times, and continuous construction of each paving, vibration, leveling and plastering should be carried out, and if a corresponding facility seam needs to be interrupted.
Preferably, in the step 5, the overlapping length of the steel-plastic grating is 15-20 cm, and the overlapping part is firmly fixed by a U-shaped nail or a connecting piece.
Preferably, in the step 6, after the rolling of the roadbed filling materials is finished, a sprinkler is needed to be used for continuously replenishing water to the part with insufficient water content, the part with excessive water content is aired, the rolling is carried out under the condition of the optimal water content as far as possible, and the water content is guaranteed to be 10-15%.
Preferably, the paving speed in the step 7 is 0.6-1.0 m/min, if the ambient temperature is lower than 20 ℃, a heating system of a paver plate is started, and when the ambient temperature is lower than 8 ℃, oxygen welding is used for assisting in heating the screed plate.
The invention has the following beneficial effects:
(1) the method can effectively solve the problem of building garbage pollution, improve the environment, reduce the capital investment for treating the building garbage, simultaneously realize the cyclic utilization of resources and create good economic benefits.
(2) The solid waste in the construction waste, such as brick slag, broken stone, concrete blocks and the like, has good compressive strength, frost heaving resistance and shrinkage resistance, is good in water stability when being matched with other materials, is convenient to construct, and can meet the construction quality requirement of roadbed filling.
(3) The roadbed and pavement treated by the building garbage aggregate backfill material solve the problem of recycling of the building garbage without other treatment, thereby laying a solid foundation for works such as urban environmental protection, urban land occupation and the like and exploring an effective path for renovating the building garbage.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a diagram of the steps at the edge of the roadbed in accordance with the present invention;
FIG. 3 is a 8m by 8m square grid of the present invention;
FIG. 4 is a 10m by 10m square grid of the present invention;
FIG. 5 is a 12m by 12m square grid of the present invention;
FIG. 6 is a lap joint view of the steel-plastic grille of the present invention;
note that: 1 is a u nail;
FIG. 7 is a view of the asphalt placement of the present invention.
Detailed Description
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.
The invention provides a technical scheme that: an application process of building rubbish roadbed filling aggregate comprises the following steps:
step 1, selecting raw materials
The particle size of the recycled aggregate of the construction waste of the first level is 9-15 mm, and the particle size of the recycled aggregate of the construction waste of the second level is 5-9 mm; the particle size of the recycled aggregate of the third-level construction waste is less than 5 mm;
step 2, preparing roadbed filling material
Selecting and uniformly stirring all levels of construction waste recycled aggregate according to a proportion, and stirring other raw materials to obtain a construction waste mixture as a roadbed filling material; firstly, building waste recycled aggregate with the particle sizes of 9-15 mm and 5-9 mm is put in, then the building waste recycled aggregate with the particle size of less than 5mm is put in and uniformly stirred, and then other materials are put in and respectively and sequentially uniformly stirred to obtain uniformly distributed roadbed filling materials;
step 3, excavating roadbed
Clearing surface garbage, leveling a road surface, excavating soil in an original roadbed, and finishing steps at the edge of the roadbed;
step 4, paving and rolling
Firstly, drawing a square grid, then spreading, vibrating layer by layer, leveling and plastering;
step 5, paving the steel-plastic grating
Steel-plastic geogrids are laid between every two layers of roadbed filling materials, if only one layer is used, the steel-plastic geogrids are laid before asphalt is poured, and two adjacent steel-plastic geogrids need to be lapped;
step 6, sprinkling water
Watering should be carried out immediately after the roadbed is filled and rolled, the rolled roadbed surface is required to be kept in a wet state, vehicles are strictly forbidden to pass, and the watering amount is generally controlled to be 3-5 kg/m2A proper amount;
step 7, pouring asphalt
Pouring of asphalt can be carried out after the steps are completed, and pouring is carried out in three layers, wherein each layer is 4 cm.
In the step 1, samples are extracted from the construction waste recycled aggregate according to a proportion of one thousandth for strength test respectively, the construction waste recycled aggregate with the test result meeting the standard requirement is stacked in a warehouse respectively, in addition, the warehouse is required to have no light irradiation and ventilation on four sides, the raw materials are ensured not to be polluted and not influenced by climate and environment, and the roadbed filling material in the step 2 comprises the following components in parts by weight: 1.0 part of white ash, 0.75-2.0 parts of dedusting ash, 1.5-3.0 parts of fly ash, 8.25-12.0 parts of first-level construction waste recycled aggregate, 12.75-18.0 parts of second-level construction waste recycled coarse aggregate, 8-11.5 parts of third-level construction waste recycled coarse aggregate, 2 parts of gypsum powder, 1 part of sodium fatty alcohol polyethylene sulfonate, 1 part of anhydrous sodium sulphate, 0.5 part of starch ether and 0.5 part of silicic acid sol, wherein the time for transporting the roadbed filling materials to a paving site after preparation is controlled within one hour, the height and the width of each step in the step 3 are 20-50 cm and 40-75 cm, the shape and the surface of each step are ensured to be regular, the roadbed surface is clean, the roadbed is strictly paved on each layer, a grid is paved by using lime lines before paving, a grid is determined in the size of 8m, 10m, 12m, and three dump trucks are adopted in a reverse mode of unloading soil-first, adopting a construction mode of multilayer paving and layer-by-layer rolling, wherein the virtual paving thickness of each layer is 20-35 cm, when the maximum thickness of one-time paving is exceeded, the paving and rolling are divided into two times, the interval time of two-layer paving is not more than 30min, the thickness of the lower layer is about more than that of the upper layer, the thickness of the lower layer is 3/5, mechanical leveling and rolling are needed after the paving of each layer is completed, the rolling frequency is 5-12 times, continuous construction is needed for each time of paving, vibrating, leveling and plastering, and if the application of facility seams is needed to be interrupted, the lapping length of the steel-plastic grating in the step 5 is 15-20 cm, the lapping position is firmly fixed by a U-shaped nail or a connecting piece, a specially-assigned person is used for inspection after the lapping is completed, the engineering quality is ensured, a sprinkler is needed to continuously supplement water to the part with insufficient water content after the roadbed filling material is rolled in the step 6, the part with the excessive water content is dried, and the rolling is possibly carried out under the condition of the optimal water content, the water content is guaranteed to be 10-15%, water is sprayed by spraying, a small amount of water is sprayed for multiple times, the wet-curing effect is greatly improved, the pavement diseases are reduced, the paving speed in the step 7 is 0.6-1.0 m/min, if the ambient temperature is lower than 20 ℃, a heating system of a paver plate is started, and when the ambient temperature is lower than 8 ℃, the oxygen welding is used for assisting in heating the screed plate, so that the difficulty in compacting the asphalt mixture due to low asphalt temperature is avoided.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-0nly Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An application process of building rubbish roadbed filling aggregate is characterized in that: the method comprises the following processing steps:
step 1, selecting raw materials
The particle size of the recycled aggregate of the construction waste of the first level is 9-15 mm, and the particle size of the recycled aggregate of the construction waste of the second level is 5-9 mm; the particle size of the recycled aggregate of the third-level construction waste is less than 5 mm;
step 2, preparing roadbed filling material
Selecting and uniformly stirring all levels of construction waste recycled aggregate according to a proportion, and stirring other raw materials to obtain a construction waste mixture as a roadbed filling material; firstly, building waste recycled aggregate with the particle sizes of 9-15 mm and 5-9 mm is put in, then the building waste recycled aggregate with the particle size of less than 5mm is put in and uniformly stirred, and then other materials are put in and respectively and sequentially uniformly stirred to obtain uniformly distributed roadbed filling materials;
step 3, excavating roadbed
Clearing surface garbage, leveling a road surface, excavating soil in an original roadbed, and finishing steps at the edge of the roadbed;
step 4, paving and rolling
Firstly, drawing a square grid, then spreading, vibrating layer by layer, leveling and plastering;
step 5, paving the steel-plastic grating
Steel-plastic geogrids are laid between every two layers of roadbed filling materials, if only one layer is used, the steel-plastic geogrids are laid before asphalt is poured, and two adjacent steel-plastic geogrids need to be lapped;
step 6, sprinkling water
Watering should be carried out immediately after the roadbed is filled and rolled, the rolled roadbed surface is required to be kept in a wet state, vehicles are strictly forbidden to pass, and the watering amount is generally controlled to be 3-5 kg/m2A proper amount;
step 7, pouring asphalt
Pouring of asphalt can be carried out after the steps are completed, and pouring is carried out in three layers, wherein each layer is 4 cm.
2. The application process of the building rubbish roadbed filling aggregate according to claim 1, characterized in that:
in the step 1, samples are extracted from the construction waste recycled aggregate according to a proportion of one in a thousand for strength test respectively, and the construction waste recycled aggregate with the test result meeting the standard requirement is stacked in a warehouse respectively.
3. The application process of the building rubbish roadbed filling aggregate according to claim 1, characterized in that:
the roadbed filling material in the step 2 comprises the following components in parts by weight: 1.0 part of white ash, 0.75-2.0 parts of dedusting ash, 1.5-3.0 parts of fly ash, 8.25-12.0 parts of first-level construction waste recycled aggregate, 12.75-18.0 parts of second-level construction waste recycled coarse aggregate, 8-11.5 parts of third-level construction waste recycled coarse aggregate, 2 parts of gypsum powder, 1 part of fatty alcohol polyethylene sodium sulfonate, 1 part of anhydrous sodium sulphate, 0.5 part of starch ether and 0.5 part of silicic acid sol;
preferably, the roadbed filling material comprises the following components in parts by weight: 1.0 part of white ash, 1.0-1.5 parts of dedusting ash, 2.5-3.0 parts of fly ash, 17.0 parts of first-level construction waste recycled aggregate recycled coarse aggregate, 11.5-11.8 parts of second-level construction waste recycled aggregate, 10-13.8 parts of third-level construction waste recycled aggregate, 1.5 parts of gypsum powder, 1.5 parts of fatty alcohol polyethylene sodium sulfonate, 1 part of anhydrous sodium sulphate, 0.5 part of starch ether and 1 part of silicic acid sol; 1 part of gypsum powder, 1 part of fatty alcohol-polyethylene sodium sulfonate, 1.5 parts of anhydrous sodium sulphate, 1.5 parts of starch ether and 0.7 part of silicic acid sol.
4. The application process of the building rubbish roadbed filling aggregate according to claim 1, characterized in that: in the step 3, the height of each step is 20-50 cm, and the width of each step is 40-75 cm.
5. The application process of the building rubbish roadbed filling aggregate according to claim 1, characterized in that:
in the step 4, "drawing and feeding" is strictly executed for each layer of paving of the roadbed, a square grid is scattered by lime lines before paving, the size of the determined square grid is 8m by 8m, 10m by 10m and 12m by 12m, a reverse feeding mode is preferentially adopted when a dump truck unloads soil, a construction mode of multilayer paving and layer-by-layer rolling is adopted, the virtual paving thickness of each layer is 20-35 cm, when the maximum thickness of one-time paving is exceeded, the two-layer paving is divided into two times of paving and rolling, the interval time of the two-layer paving is not more than 30min, the thickness of the lower layer is about larger than that of the upper layer, the thickness of the lower layer is 3/5, mechanical leveling and rolling are needed after each layer of paving is completed, the rolling times are 5-12 times, each time of paving, vibrating, leveling and plastering should be continuously constructed, and if necessary, the construction work seams of the corresponding facilities should be interrupted.
6. The application process of the building rubbish roadbed filling aggregate according to claim 1, characterized in that: and in the step 5, the overlapping length of the steel-plastic grating is 15-20 cm, and the overlapping part is firmly fixed by using a U-shaped nail or a connecting piece.
7. The application process of the building rubbish roadbed filling aggregate according to claim 1, characterized in that: and 6, after rolling, the roadbed filling materials need to be continuously supplemented with water by a sprinkler to the part with insufficient water content, and the part with excessive water content is aired, and is rolled under the condition of the optimal water content as far as possible, so that the water content is ensured to be 10-15%.
8. The application process of the building rubbish roadbed filling aggregate according to claim 1, characterized in that: and 7, paving at a speed of 0.6-1.0 m/min, starting a heating system of the paver plate if the ambient temperature is lower than 20 ℃, and simultaneously assisting to heat the screed plate by using oxygen welding when the ambient temperature is lower than 8 ℃.
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