CN112897939A - Method for prefabricating assembled roadbed by using building solid waste - Google Patents
Method for prefabricating assembled roadbed by using building solid waste Download PDFInfo
- Publication number
- CN112897939A CN112897939A CN202110129382.8A CN202110129382A CN112897939A CN 112897939 A CN112897939 A CN 112897939A CN 202110129382 A CN202110129382 A CN 202110129382A CN 112897939 A CN112897939 A CN 112897939A
- Authority
- CN
- China
- Prior art keywords
- solid waste
- prefabricating
- roadbed
- polyvinyl chloride
- quicklime
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002910 solid waste Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 24
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 46
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 24
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 24
- 239000000292 calcium oxide Substances 0.000 claims abstract description 23
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 23
- 229920000881 Modified starch Polymers 0.000 claims abstract description 21
- 239000004568 cement Substances 0.000 claims abstract description 21
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 21
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 21
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920005552 sodium lignosulfonate Polymers 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 238000003892 spreading Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 16
- 239000002893 slag Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 10
- 150000002500 ions Chemical class 0.000 abstract description 3
- 239000000314 lubricant Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008520 organization Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a method for prefabricating and assembling a roadbed by using building solid wastes, which comprises the following steps: adding quicklime and cement into the solid waste, and stirring; adding hard polyvinyl chloride and pregelatinized starch, mixing for 2min, and adding sodium lignosulfonate and magnesium oxide; after spreading, spraying citric acid solution, standing for 1d, and rolling. The hard polyvinyl chloride effectively lubricates soil particles to play a role of a lubricant, and the low-concentration citric acid solution can further eliminate the friction force between the soil particles, so that the soil reaches higher compactness when being rolled, the soil particles form new ion connection force, and the pavement base layer has good overall stability, flexibility and elasticity.
Description
Technical Field
The invention relates to a method for prefabricating and assembling a roadbed by using building solid wastes.
Background
The generation and discharge of solid wastes are continued along with the human society, and the production, distribution, exchange and consumption links of the social production can generate wastes; the links of planning, designing, raw material purchasing, manufacturing, packaging, transporting, distributing, consuming and the like of the product in the life cycle of the product can also generate solid waste, and the solid waste can also be generated even if the solid waste is utilized for reverse production and a corresponding reverse logistics process; solid wastes are generated in various functional areas of land use, residential areas, commercial areas, industrial areas, agricultural areas, municipal facilities, cultural and recreational areas, outdoor open lands and the like; solid waste is produced and discharged by any individual, enterprise, government organization and social organization throughout the society.
The Chinese patent application with the application number of CN200810157044.X discloses a solid waste earth bag of stones, slag and soil, such as engineering construction waste, industrial waste, mine tailing and the like, which does not contain chemical pollution, and a method for applying the solid waste earth bag to a foundation and a side slope. The method is characterized in that the crushed usable solid wastes are directly filled into the earthwork bags subjected to strict specifications, then the solid waste earthwork bags are stacked on the engineering construction foundation and the side slope according to a certain arrangement mode, and the solid waste earthwork bags are compacted layer by adopting rolling equipment to form the building foundation, so that the resources are saved, the freezing and thawing are prevented, and the method is energy-saving and environment-friendly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for prefabricating and assembling a roadbed by using building solid wastes, which can enable soil particles to form new ion connection force and enables a pavement base layer to have good overall stability, flexibility and elasticity.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for prefabricating and assembling a roadbed by using construction solid wastes comprises the following steps: adding quicklime and cement into the solid waste, and stirring; adding hard polyvinyl chloride and pregelatinized starch, mixing for 2min, and adding sodium lignosulfonate and magnesium oxide; after spreading, spraying citric acid solution, standing for 1d, and rolling.
Preferably, per 1kg of solid waste, the other amounts are: 20-500g of quicklime, 1-2kg of cement, 10-30g of hard polyvinyl chloride, 20-80g of pregelatinized starch, 20-30g of sodium lignosulfonate and 20-30g of magnesium oxide.
Preferably, per 1kg of solid waste, the other amounts are: 200g of quicklime, 1.5kg of cement, 20g of hard polyvinyl chloride, 40g of pregelatinized starch, 25g of sodium lignosulfonate and 25g of magnesium oxide.
Preferably, per 1kg of solid waste, the other amounts are: 20g of quicklime, 1kg of cement, 10g of hard polyvinyl chloride, 20g of pregelatinized starch, 20g of sodium lignosulfonate and 20g of magnesium oxide.
Preferably, per 1kg of solid waste, the other amounts are: 500g of quicklime, 2kg of cement, 30g of hard polyvinyl chloride, 80g of pregelatinized starch, 30g of sodium lignosulfonate and 30g of magnesium oxide.
Preferably, per 1kg of solid waste, the other amounts are: 300g of quicklime, 1.2kg of cement, 18g of rigid polyvinyl chloride, 30g of pregelatinized starch, 22g of sodium lignosulfonate and 27g of magnesium oxide.
Preferably, the stirring speed is 400-600 r/min.
Preferably, the solid waste is one or more mixtures of steel slag and blast furnace slag.
Preferably, the quicklime powder has a particle size of 0.1 to 0.6 mm.
Preferably, the citric acid solution has a mass concentration of 0.1 to 0.2%.
The invention has the following beneficial effects: the hard polyvinyl chloride effectively lubricates soil particles to play a role of a lubricant, and the low-concentration citric acid solution can further eliminate the friction force between the soil particles, so that the soil reaches higher compactness when being rolled, the soil particles form new ion connection force, and the pavement base layer has good overall stability, flexibility and elasticity.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
A method for prefabricating and assembling a roadbed by using construction solid wastes comprises the following steps: adding quicklime with the granularity of 0.1-0.6mm and cement into the solid waste, and stirring at the stirring speed of 500 r/min; adding hard polyvinyl chloride and pregelatinized starch, mixing for 2min, and adding sodium lignosulfonate and magnesium oxide; after spreading, spraying citric acid solution with mass concentration of 0.1-0.2%, standing for 1d, and rolling.
Every 1kg of solid waste, the other dosage is as follows: 300g of quicklime, 1.2kg of cement, 18g of rigid polyvinyl chloride, 30g of pregelatinized starch, 22g of sodium lignosulfonate and 27g of magnesium oxide.
The solid waste is one or a mixture of steel slag and blast furnace slag.
Example 2
A method for prefabricating and assembling a roadbed by using construction solid wastes comprises the following steps: adding quicklime with the granularity of 0.1-0.6mm and cement into the solid waste, and stirring at the stirring speed of 400 r/min; adding hard polyvinyl chloride and pregelatinized starch, mixing for 2min, and adding sodium lignosulfonate and magnesium oxide; after spreading, spraying citric acid solution with mass concentration of 0.1-0.2%, standing for 1d, and rolling.
Every 1kg of solid waste, the other dosage is as follows: 500g of quicklime, 2kg of cement, 30g of hard polyvinyl chloride, 80g of pregelatinized starch, 30g of sodium lignosulfonate and 30g of magnesium oxide.
The solid waste is one or a mixture of steel slag and blast furnace slag.
Example 3
A method for prefabricating and assembling a roadbed by using construction solid wastes comprises the following steps: adding quicklime with the granularity of 0.1-0.6mm and cement into the solid waste, and stirring at the stirring speed of 600 r/min; adding hard polyvinyl chloride and pregelatinized starch, mixing for 2min, and adding sodium lignosulfonate and magnesium oxide; after spreading, spraying citric acid solution with mass concentration of 0.1-0.2%, standing for 1d, and rolling.
Every 1kg of solid waste, the other dosage is as follows: 20g of quicklime, 1kg of cement, 10g of hard polyvinyl chloride, 20g of pregelatinized starch, 20g of sodium lignosulfonate and 20g of magnesium oxide.
The solid waste is one or a mixture of steel slag and blast furnace slag.
Example 4
A method for prefabricating and assembling a roadbed by using construction solid wastes comprises the following steps: adding quicklime with the granularity of 0.1-0.6mm and cement into the solid waste, and stirring at the stirring speed of 440 r/min; adding hard polyvinyl chloride and pregelatinized starch, mixing for 2min, and adding sodium lignosulfonate and magnesium oxide; after spreading, spraying citric acid solution with mass concentration of 0.1-0.2%, standing for 1d, and rolling.
Every 1kg of solid waste, the other dosage is as follows: 200g of quicklime, 1.5kg of cement, 20g of hard polyvinyl chloride, 40g of pregelatinized starch, 25g of sodium lignosulfonate and 25g of magnesium oxide.
The solid waste is one or a mixture of steel slag and blast furnace slag.
Comparative example 1
The difference from example 1 is that: no rigid polyvinyl chloride was added.
And (3) performance testing:
the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and any simple changes or equivalent substitutions of the technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention are within the scope of the present invention.
Claims (10)
1. The method for prefabricating and assembling the roadbed by using the building solid waste is characterized by comprising the following steps of: adding quicklime and cement into the solid waste, and stirring; adding hard polyvinyl chloride and pregelatinized starch, mixing for 2min, and adding sodium lignosulfonate and magnesium oxide; after spreading, spraying citric acid solution, standing for 1d, and rolling.
2. The method for prefabricating an assembled roadbed by using the construction solid waste, according to the claim 1, wherein every 1kg of the solid waste, the other dosage is as follows: 20-500g of quicklime, 1-2kg of cement, 10-30g of hard polyvinyl chloride, 20-80g of pregelatinized starch, 20-30g of sodium lignosulfonate and 20-30g of magnesium oxide.
3. The method for prefabricating an assembled roadbed by using the construction solid waste, according to the claim 1, wherein every 1kg of the solid waste, the other dosage is as follows: 200g of quicklime, 1.5kg of cement, 20g of hard polyvinyl chloride, 40g of pregelatinized starch, 25g of sodium lignosulfonate and 25g of magnesium oxide.
4. The method for prefabricating an assembled roadbed by using the construction solid waste, according to the claim 1, wherein every 1kg of the solid waste, the other dosage is as follows: 20g of quicklime, 1kg of cement, 10g of hard polyvinyl chloride, 20g of pregelatinized starch, 20g of sodium lignosulfonate and 20g of magnesium oxide.
5. The method for prefabricating an assembled roadbed by using the construction solid waste, according to the claim 1, wherein every 1kg of the solid waste, the other dosage is as follows: 500g of quicklime, 2kg of cement, 30g of hard polyvinyl chloride, 80g of pregelatinized starch, 30g of sodium lignosulfonate and 30g of magnesium oxide.
6. The method for prefabricating an assembled roadbed by using the construction solid waste, according to the claim 1, wherein every 1kg of the solid waste, the other dosage is as follows: 300g of quicklime, 1.2kg of cement, 18g of rigid polyvinyl chloride, 30g of pregelatinized starch, 22g of sodium lignosulfonate and 27g of magnesium oxide.
7. The method for prefabricating and assembling a roadbed by using the construction solid wastes as recited in claim 1, wherein the stirring speed is 400-600 r/min.
8. The method for prefabricating an assembled roadbed by using the construction solid waste, as claimed in claim 1, wherein the solid waste is one or more mixtures of steel slag and blast furnace slag.
9. The method for prefabricating an assembled roadbed using construction solid wastes according to claim 1, wherein the particle size of the quicklime powder is 0.1-0.6 mm.
10. The method for prefabricating and assembling a roadbed by using the construction solid waste, according to claim 1, wherein the mass concentration of the citric acid solution is 0.1-0.2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110129382.8A CN112897939A (en) | 2021-01-29 | 2021-01-29 | Method for prefabricating assembled roadbed by using building solid waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110129382.8A CN112897939A (en) | 2021-01-29 | 2021-01-29 | Method for prefabricating assembled roadbed by using building solid waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112897939A true CN112897939A (en) | 2021-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110129382.8A Pending CN112897939A (en) | 2021-01-29 | 2021-01-29 | Method for prefabricating assembled roadbed by using building solid waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112897939A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016149081A1 (en) * | 2015-03-13 | 2016-09-22 | United States Gypsum Company | Hydrophobic finish compositions with extended flow time retention and building products made thereof |
| CN108727731A (en) * | 2018-05-22 | 2018-11-02 | 丁妙严 | Flame retardant type coconut shell flour PVC composite materials |
| CN109206111A (en) * | 2018-09-14 | 2019-01-15 | 北京城建十六建筑工程有限责任公司 | A kind of driveway roadbed filled compositions and preparation method thereof |
| CN111350109A (en) * | 2020-03-06 | 2020-06-30 | 中冶天工集团有限公司 | Construction method for factory road of hydraulic reclamation land reclamation area |
-
2021
- 2021-01-29 CN CN202110129382.8A patent/CN112897939A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016149081A1 (en) * | 2015-03-13 | 2016-09-22 | United States Gypsum Company | Hydrophobic finish compositions with extended flow time retention and building products made thereof |
| CN108727731A (en) * | 2018-05-22 | 2018-11-02 | 丁妙严 | Flame retardant type coconut shell flour PVC composite materials |
| CN109206111A (en) * | 2018-09-14 | 2019-01-15 | 北京城建十六建筑工程有限责任公司 | A kind of driveway roadbed filled compositions and preparation method thereof |
| CN111350109A (en) * | 2020-03-06 | 2020-06-30 | 中冶天工集团有限公司 | Construction method for factory road of hydraulic reclamation land reclamation area |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210706 Address after: 226000 No. 87 Youth Middle Road, Nantong City, Jiangsu Province Applicant after: JIANGSU College OF ENGINEERING AND TECHNOLOGY Applicant after: NANTONG MATERIAL ENGINEERING TECHNOLOGY RESEARCH INSTITUTE OF NANJING University Address before: No.87 Qingnian Middle Road, Nantong, Jiangsu 226000 Applicant before: JIANGSU College OF ENGINEERING AND TECHNOLOGY |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210604 |
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| RJ01 | Rejection of invention patent application after publication |