CN107311541A - A kind of highway subgrade composite and highway subgrade preparation method - Google Patents
A kind of highway subgrade composite and highway subgrade preparation method Download PDFInfo
- Publication number
- CN107311541A CN107311541A CN201710550357.0A CN201710550357A CN107311541A CN 107311541 A CN107311541 A CN 107311541A CN 201710550357 A CN201710550357 A CN 201710550357A CN 107311541 A CN107311541 A CN 107311541A
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- China
- Prior art keywords
- highway subgrade
- oil shale
- flyash
- composite
- mrow
- 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.)
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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
- C04B28/001—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 unburned clay
-
- 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
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- 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
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
- C04B18/125—Slate residues, e.g. colliery shale or oil shale or oil shale ash
-
- 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
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
Abstract
The embodiment of the invention discloses a kind of highway subgrade composite, the raw material that the composite is made up of following mass percent is made：Oil shale residues 34~43%, flyash 19~22%, remaining is bankets.The present invention mixes substantial amounts of oil shale residues and coal burning thing flyash in conventional Roadbed Soil, the secondary Utilizing question of waste material is solved significantly, in the range of specific match ratio, intensity and deformation requirements of the highway subgrade design specification for highway subgrade soil are met, with great economic and social benefit.
Description
Technical field
The invention belongs to highway subgrade technical field of composite materials, more particularly to one kind is mixed with oil shale residues and flyash
Highway subgrade composite of native the like waste and preparation method thereof.
Background technology
The bulk deposition of oil shale residues and flyash equal industrial residue, severe contamination environment, road foundation amount of filler is big,
Salvage value is high, how using these industrial residues and to be widely used in road construction and is also in the exploratory stage.Jilin Province
Oil shale reserves are abundant, yield is big, the oil shale residues produced every year are even more surprising with flyash number, a large amount of discarded to provide
The generation of material not only brings the waste of resource, and also environment is polluted.
The content of the invention
For the oil shale residues and the recycling problem of flyash product largely discarded in the prior art, the present invention
It is a kind of high road of cheap, cost performance with stable intensity, deformation behaviour there is provided a kind of highway subgrade composite
Based filler.
The highway subgrade composite that the present invention is provided, the raw material being made up of following mass percent is made：Oil shale gives up
Slag 34~43%, flyash 19~22%, banket 38~44%, three's sum is 100%.
It is highly preferred that the raw material that the composite is made up of following mass percent is made：Oil shale residues 40%, powder
Coal ash 20%, banket 40%.
Preferably, the flyash is sial type flyash, and the oil shale residues are dry after oil shale mine is crushed
By high-temperature calcination and the reacted product that gasifies in furnace.
Preferably, it is described to banket as silty clay.
It is highly preferred that silicon, iron, aluminum oxide proportion are more than 85% in the flyash, loss on ignition is 4.22%.
The present invention also provides a kind of preparation method of highway subgrade, comprises the following steps：
S1：By above-mentioned highway subgrade composite-material formula, each raw material is taken, by oil shale residues, flyash, banket drying wind
Dry milling is broken, wherein, oil shale residues cross 40mm sieve apertures after rolling；
S2：Oil shale residues, flyash after S1 is handled and banket to be put into mixer and be thoroughly mixed, add water control
Roadbed composite is made between 10~20% in the water content of compound processed；
S3：On smooth roadbed weight-bearing surface, roadbed composite prepared by laying S2 hits standing 24 after real, shaping small
When, complete the making of highway subgrade.
Preferably, in S2, required amount of water is being obtained by the formula calculating as shown in following formula (1)：
Wherein：mw- required amount of water, kg；
m′o- oil shale residues air-dry material quality, kg；
m′f- flyash air-dries material quality, kg；
m′s- banketing air-dries material quality, kg；
wo- oil shale residues air-dry moisture content, %；
wf- flyash air-dries moisture content, %；
ws- banket air-dried moisture content, %；
W-design requirement moisture content, %.
Compared with prior art, the present invention has the advantages that：
(1) substantial amounts of oil shale residues and coal burning thing flyash are mixed in conventional subgrade soils, solved significantly useless
The secondary Utilizing question of material, in the range of specific match ratio, meets intensity of the highway subgrade design specification for highway subgrade soil
New technology is disposed there is provided a kind of seasonal frost region overly moist Roadbed Soil with deformation requirements, with great economic and social benefit.
(2) it is filling roadbed using oil shale residues and flyash, the requisition for field of being fetched earth outside identitypath can be reduced, is thus reduced
Influence of the highway construction to surrounding enviroment, while reducing construction costs.It is expected that every kilometer of highway construction oil shale residues and fine coal
Grey consumption reaches thousands of tons of, has reached that waste resource makes full use of, and reduces the purpose of environmental pollution；Silty clay is in immersion situation
Under, moisture content increase, intensity decreases, it is impossible to meet the intensity requirement of Roadbed Soil.Using the new road of discarded composite
It can increase the service life, the road engineering maintenance cost of reduction about 10% can also save a large amount of operation costs.Oil shale is given up
Slag and rejected fly ash are recycled, as the improved materials of subgrade soils, not only can fully meet highway subgrade design rule
Intensity and deformation requirements in model, obtain the more preferable Roadbed Soil material of more reliable, water stabilizing.Can also be both works
Industry waste material provides a kind of new recoverying and utilizing method, realizes the secondary utilization of waste resource, reduces environmental pollution.
Embodiment
In order that those skilled in the art more fully understand that technical scheme can be practiced, with reference to specific
The invention will be further described for embodiment, but illustrated embodiment is not as a limitation of the invention
Oil shale residues are to pass through high-temperature calcination and the reacted product that gasifies after oil shale mine is crushed in gas retort,
Its chemical composition is mainly SiO2, Fe2O3, Al2O3, CaO, MgO.
In following examples of the present invention, the oil shale residues produced with Wangqing and other places, sial type flyash (silicon,
Iron, aluminum oxide proportion are more than 85%, and loss on ignition is 4.22%) to banket and (have with the common silty clay in the Northeast
There are middle liquid limit and inductile index, it may occur that obvious winter frost heaving, intensity decreases, depression of bearing force, nothing after immersion
Method meets the requirement that roadbed in Road Design specification carries ratio) exemplified by, detailed illustrate is carried out to technical scheme
It is bright.
Embodiment 1
A kind of highway subgrade composite of the present embodiment, the raw material being made up of following mass percent is made：Oil shale gives up
Slag 40%, flyash 20%, silty clay 40%.
Embodiment 2
A kind of highway subgrade composite of the present embodiment, the raw material being made up of following mass percent is made：Oil shale gives up
Slag 34%, flyash 22%, silty clay 44%.
Embodiment 3
A kind of highway subgrade composite of the present embodiment, the raw material being made up of following mass percent is made：Oil shale gives up
Slag 43%, flyash 19%, silty clay 38%.
Embodiment 4
A kind of highway subgrade composite of the present embodiment, the raw material being made up of following mass percent is made：Oil shale gives up
Slag 38%, flyash 19%, silty clay 43%.
Comparative example 1
A kind of highway subgrade material of this comparative example, composition is silty clay.
Comparative example 2
A kind of highway subgrade composite of this comparative example, the raw material being made up of following mass percent is made：Oil shale gives up
Slag 31%, flyash 30%, silty clay 39%.
Comparative example 3
A kind of highway subgrade composite of this comparative example, the raw material being made up of following mass percent is made：Oil shale gives up
Slag 24.2%, flyash 25.8%, silty clay 50%.
The highway subgrade composite that 1-4 of the embodiment of the present invention is provided is mainly used in the roadbed part of road foundation, in order to
Verify that it has sufficient intensity, deformation behaviour, we are determined to its california bearing ratio and the modulus of resilience.Carrying ratio is
Sample, which soaks 96 hours, determines intensity, and deformation of the modulus of resilience for consideration material under Frozen-thawed cycled effect and equilibrium humidity is special
Levy, both of which considers performance of the material under least favorable state.
(1) california bearing ratio is determined
After the flyash of the embodiment 1-4 highway subgrade composites provided and silty clay are dried, pulverized in proportion
It is well mixed, mixed and stirred with drying, pulverizing oil shale residues that are rear and crossing 40mm hole sizers, the configuration moisture content that adds water is 12.1%, warp
Cross heavy compaction and test specimen is made, its california bearing ratio (%) is measured after 96h immersion, in order to illustrate effect, we are with contrast
The highway subgrade material that example 1 is provided, and the highway subgrade composite that comparative example 2-3 is provided is as a comparison case, using same
Method handled, gained california bearing ratio (%) is as shown in table 1 below.
The california bearing ratio of the highway subgrade material of the water content 12.1% of table 1
| Example | CBR (%) |
| Embodiment 1 | 39.8 |
| Embodiment 2 | 35.7 |
| Embodiment 3 | 36.2 |
| Embodiment 4 | 32.0 |
| Comparative example 1 | 0.93 |
| Comparative example 2 | 15.1 |
| Comparative example 3 | 9.35 |
As can be seen from Table 1, the carrying ratio of oil shale residues, flyash and roadbed soil composite material is substantially better than independent make
Banketed with silty clay, and when oil shale residues 34~43%, flyash 19~22%, banket 38~44% when, its CBR intensity
It is worth preferably, and meets the carrying ratio of highway subgrade material and requires.
The carrying ratio that silty clay is used alone in comparative example 1 is immersed in 0.95%, well below in highway subgrade design specification
Highway in roadbed highest index 8%, be used alone and cannot function as the Roadbed Soil of highway.
Meanwhile, we have also been made other tests, and silty clay is used alone, and control different moisture content, and moisture content is
Between 10~20%, the carrying that many experiments measure silty clay is compared between 0.75~1.2%.Further having proved to make
Used for the Roadbed Soil of highway.
Further, we determine the configuration moisture content that adds water by taking the highway subgrade composite that embodiment 1-4 is provided as an example
For 18.2% when, its california bearing ratio data.Gained california bearing ratio (%) is as shown in table 2 below.
The california bearing ratio of the highway subgrade material of the water content 18.2% of table 2
| Example | CBR (%) |
| Embodiment 1 | 41.8 |
| Embodiment 2 | 41.2 |
| Embodiment 3 | 39.2 |
| Embodiment 4 | 39.4 |
As can be seen from Table 2, the roadbed soil composite material that embodiment 1-4 is provided, when preparation water content is 18.2%, it holds
Carry and be more than 39% than CBR, the carrying ratio of silty clay, significantly larger than highway subgrade design specification is not only significantly larger than used alone
In highway in roadbed highest index 8%.
(2) modulus of resilience is determined
We are according to the calculating of the new highway subgrade resilient modulus Preliminary design modulus of resilience in JTG D30-2015 below
Formula, subgrade resilient modulus is obtained by humidity regulation coefficient, Frozen-thawed cycled/drying and watering cycle subgrade soils modulus reduction coefficient.Tool
Body is by taking the roadbed soil composite material that embodiment 1 is provided as an example, and when humidity regulation coefficient takes experimental field Jilin Area average, real
The modulus of resilience for applying the roadbed soil composite material of the offer of example 1 is 70~130MPa, higher than bituminous paving to subgrade resilient modulus
19.5~29.5MPa requirement.
As fully visible, the roadbed soil composite material that 1-4 of the embodiment of the present invention is provided has stable intensity and deformation behaviour,
It is a kind of high roadbed filling of cheap, cost performance.
Embodiment described above is only the preferred embodiment to absolutely prove the present invention and being lifted, and its protection domain is not limited
In this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, the protection in the present invention
Within the scope of, protection scope of the present invention is defined by claims.
Claims (7)
1. a kind of highway subgrade composite, it is characterised in that the raw material that the composite is made up of following mass percent
It is made：
Oil shale residues 34~43%, flyash 19~22%, remaining be.
2. highway subgrade composite according to claim 1, it is characterised in that the composite is by following quality hundred
The raw material than composition is divided to be made：
Oil shale residues 40%, flyash 20%, banket 40%.
3. highway subgrade composite according to claim 1, it is characterised in that described to banket as silty clay.
4. highway subgrade composite according to claim 3, it is characterised in that the flyash is sial type fine coal
Ash, the oil shale residues are to pass through high-temperature calcination and the reacted product that gasifies after oil shale mine is crushed in gas retort.
5. highway subgrade composite according to claim 4, it is characterised in that silicon, iron, alumina in the flyash
Thing proportion is more than 85%, and loss on ignition is 4.22%.
6. a kind of preparation method of highway subgrade, it is characterised in that comprise the following steps：
S1：Composite-material formula as described in claim 1, takes each raw material, and by oil shale residues, flyash, banket drying wind
Dry milling is broken, wherein, oil shale residues cross 40mm sieve apertures after rolling；
S2：Oil shale residues, flyash after S1 is handled and banket to be put into mixer and be thoroughly mixed, the control that adds water is mixed
The water content of material is closed between 10~20%, roadbed composite is made；
S3：On smooth roadbed weight-bearing surface, roadbed composite prepared by laying S2 stands 24 hours after hitting real, shaping, complete
Into the making of highway subgrade.
7. the preparation method of highway subgrade according to claim 1, it is characterised in that in S2, required amount of water is to pass through
Formula calculating as shown in following formula (1) is obtained：
<mrow>
<msub>
<mi>m</mi>
<mi>w</mi>
</msub>
<mo>=</mo>
<mrow>
<mo>(</mo>
<mfrac>
<msubsup>
<mi>m</mi>
<mi>o</mi>
<mo>&prime;</mo>
</msubsup>
<mrow>
<mn>1</mn>
<mo>+</mo>
<mn>0.01</mn>
<msub>
<mi>w</mi>
<mi>o</mi>
</msub>
</mrow>
</mfrac>
<mo>+</mo>
<mfrac>
<msubsup>
<mi>m</mi>
<mi>f</mi>
<mo>&prime;</mo>
</msubsup>
<mrow>
<mn>1</mn>
<mo>+</mo>
<mn>0.01</mn>
<msub>
<mi>w</mi>
<mi>f</mi>
</msub>
</mrow>
</mfrac>
<mo>+</mo>
<mfrac>
<msubsup>
<mi>m</mi>
<mi>s</mi>
<mo>&prime;</mo>
</msubsup>
<mrow>
<mn>1</mn>
<mo>+</mo>
<mn>0.01</mn>
<msub>
<mi>w</mi>
<mi>s</mi>
</msub>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
<mo>&times;</mo>
<mn>0.01</mn>
<mi>w</mi>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein：mw- required amount of water, kg；
m′o- oil shale residues air-dry material quality, kg；
m′f- flyash air-dries material quality, kg；
m′s- banketing air-dries material quality, kg；
wo- oil shale residues air-dry moisture content, %；
wf- flyash air-dries moisture content, %；
ws- banket air-dried moisture content, %；
W-design requirement moisture content, %.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710550357.0A CN107311541B (en) | 2017-07-07 | 2017-07-07 | A kind of highway subgrade composite material and highway subgrade production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710550357.0A CN107311541B (en) | 2017-07-07 | 2017-07-07 | A kind of highway subgrade composite material and highway subgrade production method |
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| Publication Number | Publication Date |
|---|---|
| CN107311541A true CN107311541A (en) | 2017-11-03 |
| CN107311541B CN107311541B (en) | 2019-12-03 |
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| CN201710550357.0A Expired - Fee Related CN107311541B (en) | 2017-07-07 | 2017-07-07 | A kind of highway subgrade composite material and highway subgrade production method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113135680A (en) * | 2021-03-22 | 2021-07-20 | 兰州有色冶金设计研究院有限公司 | Method for producing roadbed base material by using low-calorific-value solid waste |
| CN113185195A (en) * | 2021-04-28 | 2021-07-30 | 中建五局土木工程有限公司 | Improved composite roadbed filling and preparation method thereof |
| CN113800838A (en) * | 2021-11-05 | 2021-12-17 | 中南大学 | Road base material for highway and preparation method thereof |
| CN113860828A (en) * | 2021-12-03 | 2021-12-31 | 山东绿达建设发展集团有限公司 | Highway subgrade material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4592931A (en) * | 1983-07-28 | 1986-06-03 | Exxon Research & Engineering Co. | Method for soil stabilization and fugitive dust control |
| IL105654A (en) * | 1993-05-10 | 1997-06-10 | Univ Ben Gurion | Building material from fuel waste |
| CN101293750A (en) * | 2008-06-25 | 2008-10-29 | 吉林大学 | Coal ash soil composite material for highway subgrade and preparation method thereof |
| CN102491698A (en) * | 2011-12-12 | 2012-06-13 | 上海寰保渣业处置有限公司 | Highway basement layer and roadbed material containing coal-fired power plant slag and coal ash and using cement for stabilizing |
-
2017
- 2017-07-07 CN CN201710550357.0A patent/CN107311541B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4592931A (en) * | 1983-07-28 | 1986-06-03 | Exxon Research & Engineering Co. | Method for soil stabilization and fugitive dust control |
| IL105654A (en) * | 1993-05-10 | 1997-06-10 | Univ Ben Gurion | Building material from fuel waste |
| CN101293750A (en) * | 2008-06-25 | 2008-10-29 | 吉林大学 | Coal ash soil composite material for highway subgrade and preparation method thereof |
| CN102491698A (en) * | 2011-12-12 | 2012-06-13 | 上海寰保渣业处置有限公司 | Highway basement layer and roadbed material containing coal-fired power plant slag and coal ash and using cement for stabilizing |
Non-Patent Citations (3)
| Title |
|---|
| DR.ROBERT，M.BROOK: "《Soil stabilization with flyash and rice husk ash》", 《INTERNATIONAL JOURNAL OF RESEARCH AND REVIEWS IN APPLIED SCIENCES》 * |
| 詹健雄等: "《水泥生产基本知识》", 31 August 1990, 武汉工业大学出版社 * |
| 郑毅 等: "《土力学》", 30 June 2014, 武汉大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113135680A (en) * | 2021-03-22 | 2021-07-20 | 兰州有色冶金设计研究院有限公司 | Method for producing roadbed base material by using low-calorific-value solid waste |
| CN113185195A (en) * | 2021-04-28 | 2021-07-30 | 中建五局土木工程有限公司 | Improved composite roadbed filling and preparation method thereof |
| CN113800838A (en) * | 2021-11-05 | 2021-12-17 | 中南大学 | Road base material for highway and preparation method thereof |
| CN113860828A (en) * | 2021-12-03 | 2021-12-31 | 山东绿达建设发展集团有限公司 | Highway subgrade material and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN107311541B (en) | 2019-12-03 |
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