CN109942265A - A kind of roadbed material and its application using building waste processing product - Google Patents
A kind of roadbed material and its application using building waste processing product Download PDFInfo
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- CN109942265A CN109942265A CN201910090047.4A CN201910090047A CN109942265A CN 109942265 A CN109942265 A CN 109942265A CN 201910090047 A CN201910090047 A CN 201910090047A CN 109942265 A CN109942265 A CN 109942265A
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Abstract
The present invention relates to a kind of roadbed material using building waste processing product and its applications.The roadbed material includes: lime, dedusting ash, flyash, recycled fine aggregate, regenerated coarse aggregate composition, and wherein dedusting ash additive amount is no more than the 60% of flyash quality.The present invention regenerates the ratio of coarse-fine aggregate, dedusting ash and flyash by reasonably optimizing, success replaces 50% flyash for the production of roadbed material, greatly reduce production cost, the coefficient of variation reduces simultaneously, the intensity of base-material of satisfying the need has castering action, it is impervious good to have the characteristics that, underlayment, the strength grade especially suitable for town road road surface require lower inorganic roadbed material of regeneration etc., and cost advantage can be highlighted by promoting the use of in the city of natural resources scarcity.
Description
Technical field
The present invention relates to construction refuse resource circulating technology fields, and in particular to a kind of to handle product using building waste
Roadbed material.
Background technique
The building waste discards waste concrete material and refers to relatively simple recycled concrete aggregate, the ground base such as removed
The discarded concrete material of the generations such as beam, column, plate and the concrete road surface of dismounting that plinth, reinforced concrete structure are built.
With the quickening of Urbanization in China, the yield of urban building waste is also rapidly increasing, and becomes urban development
A big obstacle.In face of increasingly serious environmental problem, the generation of building waste is undoubtedly exacerbated between human and environment, resource
Contradiction affects the coordinated development of urban ecological environment.For environmental protection and the utilization of resources, building waste processing and again
It makes profits with the inexorable trend for being all future development.
By practice in recent years, China obtains more breakthrough in building waste processing technique and comprehensive utilization technique.So
And by building waste containing miscellaneous more, the reasons such as brick and tile isolation technics is immature still are limited to available construction refuse regenerated at present
Application of the aggregate in concrete, research and application for the dedusting ash generated in construction refuse resource treatment process are very
It is few；And in a small amount of application study of dedusting ash, there is also many restrictions conditions, if it is simply possible to use in backfilling material, need to it is specific
Major ingredient, auxiliary agent with the use of etc..
Summary of the invention
In order to overcome the above technical problems, the present invention proposes on the basis of the further investigation to dedusting ash characteristic with dedusting
The inventive concept of ash substitution part flyash, and product is handled by reasonably selecting other building wastes, optimize each component ratio,
When utmostly improving the utilization rate of building waste, moreover it is possible to the cost of material of roadbed material be effectively reduced, improve the strong of roadbed material
Degree.
Technical scheme is as follows:
A kind of roadbed material, comprising: lime, dedusting ash, flyash, recycled fine aggregate, regenerated coarse aggregate composition, wherein dedusting
Grey additive amount is no more than the 60% of flyash quality.
The lime is the quick lime containing the efficient oxidation calcium and 70% or more magnesia quality summation.
The dedusting ash come from building refuse concrete block raw material sorting removal of impurities, broken, screening, particle shaping,
The dust obtained during the processing such as removal micro mist.Make dregs, old metal, light-weight walling material, organic by treatment process
The separation such as sundries.
Flat-elongated particles content should be less than 8% in the flyash, and sundries content is less than 0.5%.
Partial size < 5mm of the recycled fine aggregate.
The regenerated coarse aggregate is partial size 5-26.5mm, can also further refine partial size, such as 5- according to actual needs
10mm、10-26.5mm。
As one of embodiments of the present invention, the roadbed material includes the component of following parts by weight: 1.0 parts of lime, being removed
0.75-2.0 parts of dust, 1.5-3.0 parts of flyash, 8.25-12.0 parts of recycled fine aggregate, 12.75-18.0 parts of regenerated coarse aggregate.
As another embodiment of the present invention, the roadbed material includes the component of following parts by weight: lime 1.0
Part, 1.0-2.0 parts of dedusting ash, 2.0-3.0 parts of flyash, 11.0-12.0 parts of recycled fine aggregate, regenerated coarse aggregate 16.0-18.0
Part.The roadbed material composite compression-resisting intensity 0.6MPa specification obtained within this range.
Further preferably, the roadbed material includes the component of following parts by weight: 1.0 parts of lime, 1.0-1.5 parts of dedusting ash,
2.5-3.0 parts of flyash, 11.5-11.8 parts of recycled fine aggregate, 17.0 parts of regenerated coarse aggregate；Or, the roadbed material includes as follows
The component of parts by weight: 1.0 parts of lime, 1.5-2.0 parts of dedusting ash, 2.0-2.5 parts of flyash, 11.5-11.8 parts of recycled fine aggregate,
17.0 parts of regenerated coarse aggregate.
As another embodiment of the present invention, the roadbed material includes the component of following parts by weight: lime 1.0
Part, 0.75-1.5 parts of dedusting ash, 1.5-2.25 parts of flyash, 8.25 parts of recycled fine aggregate, 12.75 parts of regenerated coarse aggregate.Herein
The roadbed material composite compression-resisting intensity 0.8MPa specification obtained in range.
Further preferably, the roadbed material includes the component of following parts by weight: 1.0 parts of lime, 0.75 part of dedusting ash, and fine coal
2.25 parts, 8.25 parts of recycled fine aggregate, 12.75 parts of regenerated coarse aggregate of ash；Or, the roadbed material includes the group of following parts by weight
Point: 1.0 parts of lime, 1.5 parts of dedusting ash, 1.5 parts of flyash, 8.25 parts of recycled fine aggregate, 12.75 parts of regenerated coarse aggregate.
Underlayment, strength grade the present invention also provides above-mentioned roadbed material on town road road surface require lower regeneration nothing
Application in machine road.
The beneficial effects of the present invention are:
Building waste recycled concrete aggregate, the foundation such as removed, armored concrete are utilized the invention proposes a kind of
Beam, column, plate, concrete road surface of dismounting of structural construction etc., the regeneration coarse-fine aggregate obtained by certain process and are removed
Technical solution of the dust as roadbed material.The regeneration coarse-fine aggregate is to be removed by building refuse concrete block raw material by sorting
It is obtained after miscellaneous, broken, screening, particle shaping, removal micro mist etc. technical process；The dedusting ash is completed in process of production
It unloads ash and transports, and be sufficiently mixed with < 5mm fine aggregate, be more advantageous to application of the dedusting ash in roadbed material.
The present invention regenerates the ratio of coarse-fine aggregate, dedusting ash and flyash by reasonably optimizing, successfully instead of 50% fine coal
Ash is used for the production of roadbed material, greatly reduces production cost, while the coefficient of variation reduces, the intensity for the base-material that satisfies the need has promotion to make
With it is impervious good to have the characteristics that, underlayment, the strength grade especially suitable for town road road surface require lower regeneration nothing
Machine roadbed material etc., cost advantage can be highlighted by promoting the use of in the city of natural resources scarcity.The present invention is for improving roadbed material
Construction quality reduces project cost, reduces environmental pollution, and promotes the smooth implementation of China's strategy of sustainable development to have important
Economy and realistic meaning.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
It is 30% (0.6MPa) that 1 dedusting ash of embodiment, which substitutes flyash,
One, material requirements:
1, use the discarded concrete generated by dismountings such as foundation, building structure, pavement of road for raw material, into building
Building refuse process for producing line, by sorting removal of impurities, broken, screening, particle shaping, removal micro mist etc. technical process, by several
The process flow of kind equipment composition Combined Treatment, reaches the separation such as dregs, old metal, light-weight walling material, foreign organic matter, production
It can be used for the regeneration coarse-fine aggregate and dedusting ash of Structural Engineering out.Recycled fine aggregate partial size 0-5mm, regenerated coarse aggregate partial size 5-
10mm and 10-26.5mm, dedusting ash, flat-elongated particles content should be less than 8%, and sundries content is less than 0.5%.
2, lime: the efficient oxidation calcium adds the quick lime of 70% or more content of magnesia.
3, water: drinking water
Two, it is formulated (100 kilograms of roadbed material dosages)
Three, testing result (standard foundation: " highway engineering stabilized with inorganic binder testing of materials regulation " JTG E51-
2009)。
Table 1: 1 testing result of embodiment
It is 50% (0.6MPa) that 2 dedusting ash of embodiment, which substitutes flyash,
One, material requirements:
1, use the discarded concrete generated by dismountings such as foundation, building structure, pavement of road for raw material, into building
Building refuse process for producing line, by sorting removal of impurities, broken, screening, particle shaping, removal micro mist etc. technical process, by several
The process flow of kind equipment composition Combined Treatment, reaches the separation such as dregs, old metal, light-weight walling material, foreign organic matter, production
It can be used for the regeneration coarse-fine aggregate and dedusting ash of Structural Engineering out.Recycled fine aggregate partial size 0-5mm, regenerated coarse aggregate partial size 5-
10mm and 10-26.5mm, dedusting ash, flat-elongated particles content should be less than 8%, and sundries content is less than 0.5%.
2, lime: the efficient oxidation calcium adds the quick lime of 70% or more content of magnesia.
3, water: drinking water
Two, it is formulated (100 kilograms of roadbed material dosages)
Three, testing result (standard foundation: " highway engineering stabilized with inorganic binder testing of materials regulation " JTG E51-
2009)。
Table 2: 2 testing result of embodiment
It is 100% (0.6MPa) that 1 dedusting ash of comparative example, which substitutes flyash,
One, material requirements:
1, use the discarded concrete generated by dismountings such as foundation, building structure, pavement of road for raw material, into building
Building refuse process for producing line, by sorting removal of impurities, broken, screening, particle shaping, removal micro mist etc. technical process, by several
The process flow of kind equipment composition Combined Treatment, reaches the separation such as dregs, old metal, light-weight walling material, foreign organic matter, production
It can be used for the regeneration coarse-fine aggregate and dedusting ash of Structural Engineering out.Recycled fine aggregate partial size 0-5mm, regenerated coarse aggregate partial size 5-
10mm and 10-26.5mm, dedusting ash, flat-elongated particles content should be less than 8%, and sundries content is less than 0.5%.
2, lime: the efficient oxidation calcium adds the quick lime of 70% or more content of magnesia.
3, water: drinking water
Two, it is formulated (100 kilograms of roadbed material dosages)
Three, testing result (standard foundation: " highway engineering stabilized with inorganic binder testing of materials regulation " JTG E51-
2009)。
Table 3: 1 testing result of comparative example
It is 0% (0.6MPa) that 2 dedusting ash of comparative example, which substitutes flyash,
One, material requirements:
1, use the discarded concrete generated by dismountings such as foundation, building structure, pavement of road for raw material, into building
Building refuse process for producing line, by sorting removal of impurities, broken, screening, particle shaping, removal micro mist etc. technical process, by several
The process flow of kind equipment composition Combined Treatment, reaches the separation such as dregs, old metal, light-weight walling material, foreign organic matter, production
It can be used for the regeneration coarse-fine aggregate and dedusting ash of Structural Engineering out.Recycled fine aggregate partial size 0-5mm, regenerated coarse aggregate partial size 5-
10mm and 10-26.5mm, dedusting ash, flat-elongated particles content should be less than 8%, and sundries content is less than 0.5%.
2, lime: the efficient oxidation calcium adds the quick lime of 70% or more content of magnesia.
3, water: drinking water
Two, it is formulated (100 kilograms of roadbed material dosages)
Three, testing result (standard foundation: " highway engineering stabilized with inorganic binder testing of materials regulation " JTG E51-
2009)。
Table 4: 2 testing result of comparative example
It is 30% (0.8MPa) that 3 dedusting ash of embodiment, which substitutes flyash,
One, material requirements:
1, use the discarded concrete generated by dismountings such as foundation, building structure, pavement of road for raw material, into building
Building refuse process for producing line, by sorting removal of impurities, broken, screening, particle shaping, removal micro mist etc. technical process, by several
The process flow of kind equipment composition Combined Treatment, reaches the separation such as dregs, old metal, light-weight walling material, foreign organic matter, production
It can be used for the regeneration coarse-fine aggregate and dedusting ash of Structural Engineering out.Recycled fine aggregate partial size 0-5mm, regenerated coarse aggregate partial size 5-
10mm and 10-26.5mm, dedusting ash, flat-elongated particles content should be less than 8%, and sundries content is less than 0.5%.
2, lime: the efficient oxidation calcium adds the quick lime of 70% or more content of magnesia.
3, water: drinking water
Two, it is formulated (100 kilograms of roadbed material dosages)
Three, testing result (standard foundation: " highway engineering stabilized with inorganic binder testing of materials regulation " JTG E51-
2009)。
Table 5: 3 testing result of embodiment
It is 50% (0.8MPa) that 4 dedusting ash of embodiment, which substitutes flyash,
One, material requirements:
1, use the discarded concrete generated by dismountings such as foundation, building structure, pavement of road for raw material, into building
Building refuse process for producing line, by sorting removal of impurities, broken, screening, particle shaping, removal micro mist etc. technical process, by several
The process flow of kind equipment composition Combined Treatment, reaches the separation such as dregs, old metal, light-weight walling material, foreign organic matter, production
It can be used for the regeneration coarse-fine aggregate and dedusting ash of Structural Engineering out.Recycled fine aggregate partial size 0-5mm, regenerated coarse aggregate partial size 5-
10mm and 10-26.5mm, dedusting ash, flat-elongated particles content should be less than 8%, and sundries content is less than 0.5%.
2, lime: the efficient oxidation calcium adds the quick lime of 70% or more content of magnesia.
3, water: drinking water
Two, it is formulated (100 kilograms of roadbed material dosages)
Three, testing result (standard foundation: " highway engineering stabilized with inorganic binder testing of materials regulation " JTG E51-
2009)。
Table 6: 4 testing result of embodiment
It is 100% (0.8MPa) that 3 dedusting ash of comparative example, which substitutes flyash,
One, material requirements:
1, use the discarded concrete generated by dismountings such as foundation, building structure, pavement of road for raw material, into building
Building refuse process for producing line, by sorting removal of impurities, broken, screening, particle shaping, removal micro mist etc. technical process, by several
The process flow of kind equipment composition Combined Treatment, reaches the separation such as dregs, old metal, light-weight walling material, foreign organic matter, production
It can be used for the regeneration coarse-fine aggregate and dedusting ash of Structural Engineering out.Recycled fine aggregate partial size 0-5mm, regenerated coarse aggregate partial size 5-
10mm and 10-26.5mm, dedusting ash, flat-elongated particles content should be less than 8%, and sundries content is less than 0.5%.
2, lime: the efficient oxidation calcium adds the quick lime of 70% or more content of magnesia.
3, water: drinking water
Two, it is formulated (100 kilograms of roadbed material dosages)
Three, testing result (standard foundation: " highway engineering stabilized with inorganic binder testing of materials regulation " JTG E51-
2009)。
Table 7: 3 testing result of comparative example
It is 0% (0.8MPa) that 4 dedusting ash of comparative example, which substitutes flyash,
One, material requirements:
1, use the discarded concrete generated by dismountings such as foundation, building structure, pavement of road for raw material, into building
Building refuse process for producing line, by sorting removal of impurities, broken, screening, particle shaping, removal micro mist etc. technical process, by several
The process flow of kind equipment composition Combined Treatment, reaches the separation such as dregs, old metal, light-weight walling material, foreign organic matter, production
It can be used for the regeneration coarse-fine aggregate and dedusting ash of Structural Engineering out.Recycled fine aggregate partial size 0-5mm, regenerated coarse aggregate partial size 5-
10mm and 10-26.5mm, dedusting ash, flat-elongated particles content should be less than 8%, and sundries content is less than 0.5%.
2, lime: the efficient oxidation calcium adds the quick lime of 70% or more content of magnesia.
3, water: drinking water
Two, it is formulated (100 kilograms of roadbed material dosages)
Three, testing result (standard foundation: " highway engineering stabilized with inorganic binder testing of materials regulation " JTG E51-
2009)。
Table 8: 4 testing result of comparative example
Above-described embodiment 1, embodiment 2, embodiment 3, embodiment 4 are that dedusting ash is respectively used to lime-flyash stabilization material
Expect in two kinds of specifications of 0.6MPa and 0.8MPa, by the testing result with comparative example 1-4 it is found that as dedusting ash substitutes flyash
The data of the increase of ratio, testing result are more stable.But because building refuse concrete is during recycling treatment, by sorting
Part of cement ingredient can be contained in the dedusting ash component that removal of impurities, broken, screening, particle shaping, removal micro mist etc. technique generate,
When dedusting ash additional amount is excessive, it can be obviously shortened the resting period of lime, flyash stabilizing material, it is made to occur hardened piece now
As.
According to lime-flyash stabilization material in F20-2015 standard JTG/T " highway road surface construction technology detailed rules and regulations "
Recommendation ratio are as follows: lime: flyash=1:2~1:4, therefore, comprehensive many factors, it is proposed that dedusting ash highest is added to
60%.
Although above the present invention is described in detail with a general description of the specific embodiments,
On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, fall within the scope of the claimed invention without departing from theon the basis of the spirit of the present invention.
Claims (9)
1. a kind of roadbed material using building waste processing product characterized by comprising lime, dedusting ash, flyash, again
Raw fine aggregate, regenerated coarse aggregate composition, wherein dedusting ash additive amount is no more than the 60% of flyash quality.
2. roadbed material according to claim 1, which is characterized in that the dedusting ash comes from building refuse concrete block
Raw material dust obtained in sorting removal of impurities, broken, screening, particle shaping, removal micro mist treatment process.
3. roadbed material according to claim 1 or 2, which is characterized in that partial size < 5mm of the recycled fine aggregate.
4. roadbed material according to claim 1 to 3, which is characterized in that the regenerated coarse aggregate is partial size 5-
26.5mm。
5. roadbed material according to claim 1 to 4, which is characterized in that flat-elongated particles content is answered in the flyash
Less than 8%, sundries content is less than 0.5%.
6. -5 any roadbed material according to claim 1, which is characterized in that the roadbed material includes the group of following parts by weight
Point: 1.0 parts of lime, 0.75-2.0 parts of dedusting ash, 1.5-3.0 parts of flyash, 8.25-12.0 parts of recycled fine aggregate, regenerate thick bone
12.75-18.0 parts of material.
7. -6 any roadbed material according to claim 1, which is characterized in that the roadbed material includes the group of following parts by weight
Point: 1.0 parts of lime, 1.0-2.0 parts of dedusting ash, 2.0-3.0 parts of flyash, 11.0-12.0 parts of recycled fine aggregate, regenerated coarse aggregate
16.0-18.0 parts；
Preferably, the roadbed material includes the component of following parts by weight: 1.0 parts of lime, 1.0-1.5 parts of dedusting ash, and flyash
2.5-3.0 parts, 11.5-11.8 parts of recycled fine aggregate, 17.0 parts of regenerated coarse aggregate；
Or, the roadbed material includes the component of following parts by weight: 1.0 parts of lime, 1.5-2.0 parts of dedusting ash, flyash 2.0-2.5
Part, 11.5-11.8 parts of recycled fine aggregate, 17.0 parts of regenerated coarse aggregate.
8. -7 any roadbed material according to claim 1, which is characterized in that the roadbed material includes the group of following parts by weight
Point: 1.0 parts of lime, 0.75-1.5 parts of dedusting ash, 1.5-2.25 parts of flyash, 8.25 parts of recycled fine aggregate, regenerated coarse aggregate
12.75 parts；
Preferably, the roadbed material includes the component of following parts by weight: 1.0 parts of lime, 0.75 part of dedusting ash, and flyash 2.25
Part, 8.25 parts of recycled fine aggregate, 12.75 parts of regenerated coarse aggregate；
Or, the roadbed material includes the component of following parts by weight: 1.0 parts of lime, 1.5 parts of dedusting ash, 1.5 parts of flyash, regeneration
8.25 parts of fine aggregate, 12.75 parts of regenerated coarse aggregate.
9. underlayment, strength grade of any roadbed material of claim 1-8 on town road road surface require lower regeneration
Application in inorganic road.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112174561A (en) * | 2020-08-26 | 2021-01-05 | 北京鼎创科技环保集团有限公司 | Method for preparing lime fly ash stable recycled aggregate and product thereof |
| CN115677309A (en) * | 2022-11-16 | 2023-02-03 | 马智红 | Composite roadbed material prepared from construction waste and preparation method thereof |
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Application publication date: 20190628 |