CN111268980A - Method for using machine-made sand stone powder and lime composite building waste slurry as road filler - Google Patents
Method for using machine-made sand stone powder and lime composite building waste slurry as road filler Download PDFInfo
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- CN111268980A CN111268980A CN202010119787.9A CN202010119787A CN111268980A CN 111268980 A CN111268980 A CN 111268980A CN 202010119787 A CN202010119787 A CN 202010119787A CN 111268980 A CN111268980 A CN 111268980A
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- Prior art keywords
- powder
- machine
- made sand
- lime
- composite
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
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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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention relates to a method for using machine-made sand powder and lime composite building waste mud as road filler, which comprises the following steps: 1) carrying out dewatering consolidation treatment on the building waste slurry; 2) obtaining machine-made sandstone powder; 3) preparing quicklime powder and slaked lime powder; 4) mixing quicklime powder and machine-made sand powder uniformly, mixing the solidified building waste slurry with the quicklime powder and the machine-made sand powder through a double-helix reverse device to form composite slurry soil, and sealing the materials in a plant mixing plant; 5) mixing the composite mud soil with hydrated lime powder by using a granular material mixing machine to form machine-made sand stone powder and lime composite building waste mud composite soil; 6) and transporting the composite soil to a road filling site, paving by using a road paver, and rolling and compacting by using a compactor. The invention can reuse the waste building mud, and changes waste into valuable; meanwhile, the machine-made sand is easy to obtain, the added value is improved, and the problems of technology, civil life and environmental protection are solved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a method for manufacturing a road filler, in particular to a method for using machine-made sand stone powder and lime composite building waste slurry as the road filler, belonging to the technical field of municipal and traffic engineering.
[ background of the invention ]
The traditional road filler adopts excavated mountain weathered macadam, and is compacted by rolling with a compactor after being paved, so that the structural layer reaches the compaction standard and the soil foundation resilience modulus required by the specification. Under the situation that environmental protection is increasingly emphasized, the causticity of green water of the green mountains becomes common knowledge, filling materials are more and more difficult to obtain by destroying the mountains, the price is high, and the search for alternative filling materials meeting the road filling requirements becomes a new hotspot in municipal and traffic industries.
The construction waste slurry is used as an important product in the urbanization process and the development of the traffic industry, and a large amount of land resources occupied by the solidified product or a large amount of financial investment in the centralized transportation and solidification treatment of the slurry become new problems of local governments at all levels. The resource utilization of the building waste slurry becomes an important work of the state and the city at the present stage, and although the utilization attempt is made in a certain field at present, the problems of small utilization quantity, low utilization efficiency and the like exist, and the resource utilization is not in direct proportion to the increasing quantity of the waste slurry. Therefore, finding a method for utilizing and harmlessly treating waste building mud in large quantity is a big matter beneficial to the nation and the people.
With the vigorous promotion of infrastructure construction, the traditional building materials are increasingly in short supply, natural river sand is difficult to obtain, machine-made sand becomes a new trend of current industry development, and the stone powder serving as a machine-made sand product is low in additional value and utilization rate at present; meanwhile, the lime as an important material of the lime soil is increasingly tense in resources, and the purchasing cost is obviously increased.
Therefore, in order to solve the above technical problems, it is necessary to provide an innovative method for using machine-made sand powder and lime composite construction waste slurry as road filler, so as to overcome the above-mentioned drawbacks in the prior art.
[ summary of the invention ]
In order to solve the problems, the invention aims to provide a method for using machine-made sand stone powder and lime composite construction waste slurry as a road filler, wherein machine-made sand screen residual stone powder is used for replacing partial lime, and waste construction slurry obtained by composite dehydration of stone powder and lime is used as the road filler.
In order to achieve the purpose, the invention adopts the technical scheme that: the method for using machine-made sand powder and lime composite building waste mud as road filler comprises the following process steps:
1) carrying out dewatering consolidation treatment on the building waste slurry;
2) obtaining machine-made sandstone powder;
3) preparing quicklime powder and slaked lime powder;
4) mixing quicklime powder and machine-made sand powder uniformly, mixing the solidified building waste slurry with the quicklime powder and the machine-made sand powder through a double-helix reverse device to form composite slurry soil, and sealing the materials in a plant mixing plant;
5) mixing the composite mud soil with hydrated lime powder by using a granular material mixing machine to form machine-made sand stone powder and lime composite building waste mud composite soil;
6) the composite soil is transported to a road filling site by a transport vehicle, paved by a road paver and compacted by a compactor.
The method for using the machine-made sand powder and lime composite building waste slurry as the road filler further comprises the following steps: in the step 1), the water content of the solidified building waste slurry is required to be less than or equal to 30%, the total (%) of water-soluble salts is less than 5%, the content of organic matters is less than 8%, the content of cadmium (mg/kg) is less than 10%, the content of lead (mg/kg) is less than 200, and the pH value is greater than 8.
The method for using the machine-made sand powder and lime composite building waste slurry as the road filler further comprises the following steps: in the step 2), the moisture content of the machine-made sandstone powder is required to be less than 1%, and the particle size is required to be less than or equal to 0.075 mm.
The method for using the machine-made sand powder and lime composite building waste slurry as the road filler further comprises the following steps: in the step 3), the quicklime powder and the hydrated lime powder are grade III or above, and the effective calcium and magnesium content is more than or equal to 70%.
The method for using the machine-made sand powder and lime composite building waste slurry as the road filler further comprises the following steps: in the step 4), the material sealing time is 3-5 days, so that the water content of the composite mud soil is reduced to 20-23%.
The method for using the machine-made sand powder and lime composite building waste slurry as the road filler further comprises the following steps: in the step 4), the mixing proportion of the quicklime powder and the machine-made sand powder is calculated according to the cured construction waste slurry by measuring the water content of the construction waste slurry, and the construction waste slurry is added according to the dry soil mass; the mixing proportion of quicklime powder for highways, first-level highways and urban main roads is 2.8 percent, and the mixing proportion of machine-made sandstone powder is 2 percent; the quicklime powder mixing proportion of roads, urban secondary roads and roads below the second level and below is 2.0 percent, and the machine-made sandstone powder mixing proportion is 1.5 percent.
The method for using the machine-made sand powder and lime composite building waste slurry as the road filler further comprises the following steps: in the step 5), the dry soil mass is calculated by measuring the water content of the compound soil after the slaked lime powder is added according to the mixing proportion of the slaked lime powder and the material is added according to the dry soil mass; the mixing proportion of the slaked lime powder to the high-speed roads, the first-level roads and the urban main roads is 4.2 percent; the mixing proportion of the slaked lime powder is 3 percent for the second and lower roads, the urban secondary main roads and the roads below.
The method for using the machine-made sand powder and lime composite building waste slurry as the road filler further comprises the following steps: in the step 5), the mixture is stirred for 2 times; the water content of the mud composite soil is 18-20%.
The method for using the machine-made sand powder and lime composite building waste slurry as the road filler further comprises the following steps: in the step 6), the loose paving thickness is controlled to be about 25 cm; the rolling sequence is that the vibratory roller rolls for 2 times, then the sheep foot rolls for 3 times, and finally the double-steel-wheel roller rolls for 1 time.
Compared with the prior art, the invention has the following beneficial effects: the method for using the machine-made sand stone powder and lime composite building waste slurry as the road filler can recycle the waste building slurry and change waste into valuable; meanwhile, the machine-made sand powder is easy to obtain, the cost is low, and the additional value of the machine-made sand is improved, so that the problems of technology, civil life and environmental protection are solved.
[ detailed description ] embodiments
The invention relates to a method for using machine-made sand powder and lime composite building waste slurry as road filler, which comprises the following process steps:
1) carrying out dewatering consolidation treatment on the building waste slurry; wherein, the water content of the solidified building waste mud is less than or equal to 30 percent, the total amount of water-soluble salt (%) < 5 percent, the content of organic matters < 8 percent, cadmium (mg/kg) < 10 percent, lead (mg/kg) < 200 percent and PH value > 8 percent, and the environmental protection requirement of the filler is met.
2) Obtaining machine-made sandstone powder by adopting the existing organic sand making process; the moisture content of the machine-made sandstone powder is required to be less than 1%, and the particle size is less than or equal to 0.075 mm.
3) Preparing quicklime powder and slaked lime powder; the quicklime powder and the hydrated lime powder are grade III or above, and the effective calcium and magnesium content is more than or equal to 70%.
4) Mixing quicklime powder and machine-made sand powder uniformly, mixing the solidified building waste slurry with quicklime powder and machine-made sand powder by a double-helix reverse device to form composite slurry soil, and sealing the materials in a plant mixing plant. The material sealing time is 3-5 days, so that the water content of the composite mud soil is reduced to 20-23%.
The invention relates to quicklime powder and machine-made sandstone powder mixing proportion, calculating the dry soil mass by measuring the water content of solidified building waste slurry, and adding according to the dry soil mass; the mixing proportion of quicklime powder for highways, first-level highways and urban main roads is 2.8 percent, and the mixing proportion of machine-made sandstone powder is 2 percent; the quicklime powder mixing proportion of roads, urban secondary roads and roads below the second level and below is 2.0 percent, and the machine-made sandstone powder mixing proportion is 1.5 percent.
5) Mixing the composite mud soil with hydrated lime powder by using a granular material mixing machine to form machine-made sand stone powder and lime composite building waste mud composite soil; wherein, the mixing is carried out for 2 times; the water content of the mud composite soil is 18-20%.
The invention forms the composite soil of machine-made sand stone powder and lime composite building waste mud, and controls the water content of the composite soil to be 18-20%. The invention relates to a method for adding hydrated lime powder into compound soil according to the mixing proportion of the hydrated lime powder and the material covering, which comprises the steps of measuring the water content of the compound soil, calculating the dry soil mass, and adding the compound soil according to the dry soil mass; the mixing proportion of the slaked lime powder to the high-speed roads, the first-level roads and the urban main roads is 4.2 percent; the mixing proportion of the slaked lime powder is 3 percent for the second and lower roads, the urban secondary main roads and the roads below.
6) The composite soil is transported to a road filling site by a transport vehicle, paved by a road paver and compacted by a compactor. Specifically, the loose paving thickness is controlled to be about 25 cm; the rolling sequence is that the vibratory roller rolls for 2 times, then the sheep foot rolls for 3 times, and finally the double-steel-wheel roller rolls for 1 time.
The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.
Claims (9)
1. The method for using machine-made sand powder and lime composite building waste mud as road filler is characterized by comprising the following steps: the method comprises the following process steps:
1) carrying out dewatering consolidation treatment on the building waste slurry;
2) obtaining machine-made sandstone powder;
3) preparing quicklime powder and slaked lime powder;
4) mixing quicklime powder and machine-made sand powder uniformly, mixing the solidified building waste slurry with the quicklime powder and the machine-made sand powder through a double-helix reverse device to form composite slurry soil, and sealing the materials in a plant mixing plant;
5) mixing the composite mud soil with hydrated lime powder by using a granular material mixing machine to form machine-made sand stone powder and lime composite building waste mud composite soil;
6) the composite soil is transported to a road filling site by a transport vehicle, paved by a road paver and compacted by a compactor.
2. The method of using machine-made sand powder and lime composite construction waste mud as road filler according to claim 1, characterized in that: in the step 1), the water content of the solidified building waste slurry is required to be less than or equal to 30%, the total (%) of water-soluble salts is less than 5%, the content of organic matters is less than 8%, the content of cadmium (mg/kg) is less than 10%, the content of lead (mg/kg) is less than 200, and the pH value is greater than 8.
3. The method of using machine-made sand powder and lime composite construction waste mud as road filler according to claim 1, characterized in that: in the step 2), the moisture content of the machine-made sandstone powder is required to be less than 1%, and the particle size is required to be less than or equal to 0.075 mm.
4. The method of using machine-made sand powder and lime composite construction waste mud as road filler according to claim 1, characterized in that: in the step 3), the quicklime powder and the hydrated lime powder are grade III or above, and the effective calcium and magnesium content is more than or equal to 70%.
5. The method of using machine-made sand powder and lime composite construction waste mud as road filler according to claim 1, characterized in that: in the step 4), the material sealing time is 3-5 days, so that the water content of the composite mud soil is reduced to 20-23%.
6. The method of using machine-made sand powder and lime composite construction waste mud as road filler according to claim 1, characterized in that: in the step 4), the mixing proportion of the quicklime powder and the machine-made sand powder is calculated according to the cured construction waste slurry by measuring the water content of the construction waste slurry, and the construction waste slurry is added according to the dry soil mass; the mixing proportion of quicklime powder for highways, first-level highways and urban main roads is 2.8 percent, and the mixing proportion of machine-made sandstone powder is 2 percent; the quicklime powder mixing proportion of roads, urban secondary roads and roads below the second level and below is 2.0 percent, and the machine-made sandstone powder mixing proportion is 1.5 percent.
7. The method of using machine-made sand powder and lime composite construction waste mud as road filler according to claim 1, characterized in that: in the step 5), the dry soil mass is calculated by measuring the water content of the compound soil after the slaked lime powder is added according to the mixing proportion of the slaked lime powder and the material is added according to the dry soil mass; the mixing proportion of the slaked lime powder to the high-speed roads, the first-level roads and the urban main roads is 4.2 percent; the mixing proportion of the slaked lime powder is 3 percent for the second and lower roads, the urban secondary main roads and the roads below.
8. The method of using machine-made sand powder and lime composite construction waste mud as road filler according to claim 1, characterized in that: in the step 5), the mixture is stirred for 2 times; the water content of the mud composite soil is 18-20%.
9. The method of using machine-made sand powder and lime composite construction waste mud as road filler according to claim 1, characterized in that: in the step 6), the loose paving thickness is controlled to be about 25 cm; the rolling sequence is that the vibratory roller rolls for 2 times, then the sheep foot rolls for 3 times, and finally the double-steel-wheel roller rolls for 1 time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010119787.9A CN111268980A (en) | 2020-02-26 | 2020-02-26 | Method for using machine-made sand stone powder and lime composite building waste slurry as road filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010119787.9A CN111268980A (en) | 2020-02-26 | 2020-02-26 | Method for using machine-made sand stone powder and lime composite building waste slurry as road filler |
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| Publication Number | Publication Date |
|---|---|
| CN111268980A true CN111268980A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010119787.9A Pending CN111268980A (en) | 2020-02-26 | 2020-02-26 | Method for using machine-made sand stone powder and lime composite building waste slurry as road filler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113912362A (en) * | 2021-11-11 | 2022-01-11 | 江苏绿和环境科技有限公司 | Building slurry curing treatment process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012028418A1 (en) * | 2010-09-02 | 2012-03-08 | Novacem Limited | Integrated process for producing compositions containing magnesium |
| CN109678446A (en) * | 2019-03-01 | 2019-04-26 | 上海路域环保科技有限公司 | A kind of sludge curing agent and preparation method thereof |
| CN110482915A (en) * | 2019-08-26 | 2019-11-22 | 江苏水工建设有限公司 | A kind of riverway sludge curing process |
| CN110577349A (en) * | 2019-10-23 | 2019-12-17 | 深圳研源环境科技有限公司 | Building slurry treatment process and application |
| CN110593036A (en) * | 2019-09-20 | 2019-12-20 | 上海市政工程设计研究总院（集团）有限公司 | Method for preparing roadbed filler by utilizing high-water-content engineering waste soil |
-
2020
- 2020-02-26 CN CN202010119787.9A patent/CN111268980A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012028418A1 (en) * | 2010-09-02 | 2012-03-08 | Novacem Limited | Integrated process for producing compositions containing magnesium |
| CN109678446A (en) * | 2019-03-01 | 2019-04-26 | 上海路域环保科技有限公司 | A kind of sludge curing agent and preparation method thereof |
| CN110482915A (en) * | 2019-08-26 | 2019-11-22 | 江苏水工建设有限公司 | A kind of riverway sludge curing process |
| CN110593036A (en) * | 2019-09-20 | 2019-12-20 | 上海市政工程设计研究总院（集团）有限公司 | Method for preparing roadbed filler by utilizing high-water-content engineering waste soil |
| CN110577349A (en) * | 2019-10-23 | 2019-12-17 | 深圳研源环境科技有限公司 | Building slurry treatment process and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113912362A (en) * | 2021-11-11 | 2022-01-11 | 江苏绿和环境科技有限公司 | Building slurry curing treatment process |
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Application publication date: 20200612 |
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