CN110776280A - Roadbed material and preparation method thereof - Google Patents
Roadbed material and preparation method thereof Download PDFInfo
- Publication number
- CN110776280A CN110776280A CN201911223767.XA CN201911223767A CN110776280A CN 110776280 A CN110776280 A CN 110776280A CN 201911223767 A CN201911223767 A CN 201911223767A CN 110776280 A CN110776280 A CN 110776280A
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- Prior art keywords
- roadbed material
- roadbed
- slurry
- soil
- steps
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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
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- 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
- C04B28/08—Slag 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
- 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
- C04B28/14—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 calcium sulfate 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)
- Road Paving Structures (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a roadbed material, which comprises 60-80 wt% of slurry, 5-10 wt% of inorganic gelled material, 0.1-0.2 wt% of waterproof agent and 10-20 wt% of muck. The roadbed material takes the slurry as a raw material, the rapid solidification of the slurry is realized through the inorganic cementing material, and the roadbed material widely applicable to roadbed paving is prepared by reasonably utilizing a large amount of waste slurry generated during subway construction, so that the roadbed material has high environmental protection value.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a roadbed material.
Background
In the construction process of subway construction engineering, a large amount of waste residue soil slurry can be generated. The main components of the mud are clay and water, and simultaneously contain a large amount of sandstone, usually, only a large amount of mud ponds can be built on a construction site, and the waste mud is stored and then is gradually treated. However, construction sites are mostly in urban areas, some sites are also located in luxurious commercial and traffic areas, the existence of the mud pit not only occupies a precious construction site, but also influences the construction progress and the site environment, and the collected mud cannot be stored for a long time.
After the stored slurry is generally washed by water to obtain gravels with economic value, the washed slurry is transferred to a remote place to be dumped and is even illegally discharged in drainage ditches in urban areas, so that a series of environmental problems such as land pollution, pipe network blockage, water and soil loss and the like are caused. The discarded slurry can not be reasonably utilized, and serious resource waste is caused.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a saving and environment-friendly roadbed material.
In order to solve the technical problems, the invention adopts the technical scheme that: the roadbed material comprises the following components in percentage by weight:
in order to solve the technical problems, the invention also adopts the technical scheme that:
a preparation method of a roadbed material is used for preparing the roadbed material and comprises the following steps:
s1, putting 60-80 wt% of slurry, 5-10 wt% of inorganic cementing material, 0.1-0.2 wt% of waterproofing agent and 10-20 wt% of residue soil into a stirring cylinder for stirring;
s2, spraying 0.02-0.05 wt% of soil curing agent into the stirring cylinder during the stirring process of the step S1 to form a mixture.
The invention has the beneficial effects that: the roadbed material takes the slurry as a raw material, the rapid solidification of the slurry is realized through the inorganic cementing material, and the roadbed material widely applicable to roadbed paving is prepared by reasonably utilizing a large amount of waste slurry generated during subway construction, so that the roadbed material has high environmental protection value.
Drawings
Fig. 1 is a flowchart of a method for manufacturing a roadbed material according to a first embodiment of the invention.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the roadbed material takes the slurry as a raw material, the rapid solidification of the slurry is realized through the inorganic cementing material, and a large amount of waste slurry generated in the process of constructing the subway is reasonably utilized.
Referring to fig. 1, a roadbed material comprises the following components by weight percent:
the structural principle of the invention is briefly described as follows: the slurry can be rapidly solidified under the action of the inorganic cementing material, the waterproofing agent is matched with the muck, the water content of the roadbed material can be kept in a proper area, and the fluidity and the adhesiveness of the roadbed material are controlled.
From the above description, the beneficial effects of the present invention are: the roadbed material takes the slurry as a raw material, the rapid solidification of the slurry is realized through the inorganic cementing material, and the roadbed material widely applicable to roadbed paving is prepared by reasonably utilizing a large amount of waste slurry generated during subway construction, so that the roadbed material has high environmental protection value.
Further, the soil stabilizer also comprises 0.02-0.05 wt% of soil stabilizer.
As can be seen from the above description, the soil stabilizer can change the characteristics of the soil surface charges in the slurry, reduce the repulsive force among the soil particles, and improve the adsorption force among the soil particles
Further, the building material also comprises 0-20 wt% of building aggregate.
From the above description, it can be seen that the building aggregate is capable of providing the necessary support within the slurry.
Further, the inorganic cementing material is one or more of cement, gypsum and slag micropowder.
From the above description, it can be seen that the combination of various inorganic cementitious materials enables fine control of the hardness of the roadbed material.
A preparation method of a roadbed material is used for preparing the roadbed material and comprises the following steps:
s1, putting 60-80 wt% of slurry, 5-10 wt% of inorganic cementing material, 0.1-0.2 wt% of waterproofing agent and 10-20 wt% of residue soil into a stirring cylinder for stirring;
s2, spraying 0.02-0.05 wt% of soil curing agent into the stirring cylinder during the stirring process of the step S1 to form a mixture.
Further, step S3 is included after step S2, building aggregate is added to the mixture to form the roadbed material.
Further, the moisture content of the roadbed material is 5-8%.
As can be seen from the above description, maintaining the moisture content at 5-8% facilitates the transportation and transfer of the subgrade material.
Further, the soil stabilizer in step S2 is diluted and sprayed.
Example one
Referring to fig. 1, a first embodiment of the present invention is: the roadbed material comprises 60-80 wt% of slurry, 5-10 wt% of inorganic gelled material, 0.1-0.2 wt% of waterproofing agent and 10-20 wt% of residue soil.
In detail, the soil stabilizer also comprises 0.02-0.05 wt% of soil stabilizer and 0-20 wt% of building aggregate.
In this embodiment, the inorganic cementing material is one or more of cement, gypsum and slag micropowder, and the cement includes quick-setting cement and ordinary cement.
A preparation method of a roadbed material is used for preparing the roadbed material and comprises the following steps:
s1, putting 60-80 wt% of slurry, 5-10 wt% of inorganic cementing material, 0.1-0.2 wt% of waterproofing agent and 10-20 wt% of residue soil into a stirring cylinder for stirring;
s2, spraying 0.02-0.05 wt% of soil curing agent into the stirring cylinder during the stirring process of the step S1 to form a mixture; the soil curing agent is diluted and then sprayed;
s3, adding building aggregate into the mixture in the step S2 to form the roadbed material.
Optionally, the moisture content of the roadbed material is 5-8%, and preferably, the moisture content of the roadbed material is 6%.
The roadbed material in the embodiment is mainly used for paving the roadbed, wherein the paving of the roadbed comprises transportation, paving, rolling and maintenance;
the mixed mixture should be transported to a paving site as soon as possible; the mix on the car should be covered to reduce moisture loss.
When in paving, optionally, an asphalt concrete paver or a stabilized soil paver is adopted to pave the mixture; or paving the mixture by adopting a motor grader: and calculating the paving area of the mixture of each vehicle according to the thickness of the paving layer and the compacted dry density required to be achieved, uniformly unloading the mixture in the center of the construction section, and when the construction section is wider, unloading the mixture into two lines, and then uniformly paving the mixture according to the loose paving thickness by using a grader.
According to the difference of road width, wheel width and wheel track of road roller, the rolling scheme is made, the rolling times of all parts are the same as much as possible, and the two sides of the road surface are pressed for 2-3 times. The road roller is firstly light, then heavy, firstly fast and then slow, and firstly, two sides and then the middle are rolled; when the curve is set to be ultrahigh, rolling is carried out from the inner side to the outer side. The rear wheel of the three-wheel roller is overlapped 1/2 wheel width, and the rear wheel must exceed the joint of two sections until the whole thickness of each layer is completely uniform and reaches the specified compaction degree. The road roller is strictly prohibited from turning around or suddenly braking on a finished or rolling road section, and the surface of the composite consolidated soil is ensured not to be artificially damaged.
In the rolling process, the surface of the composite consolidated soil should always keep appropriate water content (the optimal water content is increased or reduced by 2%), if the water evaporation is too fast, a small amount of curing agent diluent with low concentration (1: 200) should be timely sprinkled. And (4) during rolling.
After the composite consolidated soil is rolled, a layer can be immediately paved without special maintenance period. If the user does not have time to do or do not do the upper layer, covering and sealing traffic for maintenance are needed, and the maintenance period is controlled to be 7-14 days.
In addition, the roadbed material in the embodiment can also be used for paving roadbeds of expressways, municipal roads, parks, factory parks and the like.
In conclusion, the roadbed material provided by the invention takes the slurry as a raw material, the slurry is quickly solidified through the inorganic cementing material, and the roadbed material widely applicable to roadbed paving is prepared by reasonably utilizing a large amount of waste slurry generated in subway construction, so that the roadbed material has high environmental protection value.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. A roadbed material, comprising: the roadbed material comprises the following components in percentage by weight:
2. the roadbed material of claim 1, wherein: also comprises 0.02-0.05 wt% of soil solidifying agent.
3. The roadbed material of claim 1, wherein: also comprises 0-20 wt% of building aggregate.
4. The roadbed material of claim 1, wherein: the inorganic cementing material is one or more of cement, gypsum and slag micropowder.
5. A method for producing a roadbed material according to any one of claims 1 to 4, wherein the method comprises the following steps: the method comprises the following steps:
s1, putting 60-80 wt% of slurry, 5-10 wt% of inorganic cementing material, 0.1-0.2 wt% of waterproofing agent and 10-20 wt% of residue soil into a stirring cylinder for stirring;
s2, spraying 0.02-0.05 wt% of soil curing agent into the stirring cylinder during the stirring process of the step S1 to form a mixture.
6. The method for producing a roadbed material according to claim 5, wherein the method comprises the steps of: and a step S3 of adding construction aggregate to the mixture after the step S2 to form the roadbed material.
7. The method for producing a roadbed material according to claim 5, wherein the method comprises the steps of: the moisture content of the roadbed material is 5-8%.
8. The method for producing a roadbed material according to claim 5, wherein the method comprises the steps of: the soil stabilizer in step S2 is diluted and sprayed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911223767.XA CN110776280A (en) | 2019-12-03 | 2019-12-03 | Roadbed material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911223767.XA CN110776280A (en) | 2019-12-03 | 2019-12-03 | Roadbed material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110776280A true CN110776280A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911223767.XA Pending CN110776280A (en) | 2019-12-03 | 2019-12-03 | Roadbed material and preparation method thereof |
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| CN (1) | CN110776280A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548851A (en) * | 2021-07-12 | 2021-10-26 | 中国一冶集团有限公司 | Drag pipe slurry condensate and preparation method and application method thereof |
Citations (5)
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|---|---|---|---|---|
| JP4380818B2 (en) * | 1998-10-15 | 2009-12-09 | 大林道路株式会社 | Permeable asphalt pavement structure |
| CN104119056A (en) * | 2014-07-24 | 2014-10-29 | 新奥生态建材有限公司 | Road paving material prepared from phosphogypsum composite residues and preparation method thereof |
| CN108409227A (en) * | 2018-02-02 | 2018-08-17 | 中交第二航务工程局有限公司 | Slurry, which is abandoned, using slurry shield abandons sand co-formulated Testing of Grouting Material Behind Segments method |
| CN109734395A (en) * | 2019-01-21 | 2019-05-10 | 中铁十四局集团大盾构工程有限公司 | A kind of synchronization mortar of mud laden water shield discarded slurry and preparation method thereof |
| CN110092636A (en) * | 2018-01-29 | 2019-08-06 | 郑敏 | A kind of composite material and its application method for shield discarded slurry environmental protection treatment |
-
2019
- 2019-12-03 CN CN201911223767.XA patent/CN110776280A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4380818B2 (en) * | 1998-10-15 | 2009-12-09 | 大林道路株式会社 | Permeable asphalt pavement structure |
| CN104119056A (en) * | 2014-07-24 | 2014-10-29 | 新奥生态建材有限公司 | Road paving material prepared from phosphogypsum composite residues and preparation method thereof |
| CN110092636A (en) * | 2018-01-29 | 2019-08-06 | 郑敏 | A kind of composite material and its application method for shield discarded slurry environmental protection treatment |
| CN108409227A (en) * | 2018-02-02 | 2018-08-17 | 中交第二航务工程局有限公司 | Slurry, which is abandoned, using slurry shield abandons sand co-formulated Testing of Grouting Material Behind Segments method |
| CN109734395A (en) * | 2019-01-21 | 2019-05-10 | 中铁十四局集团大盾构工程有限公司 | A kind of synchronization mortar of mud laden water shield discarded slurry and preparation method thereof |
Non-Patent Citations (4)
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| 丁毅: "《土壤固化及其应用筑路材料与技术的变革》", 30 June 2009, 中国大地出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548851A (en) * | 2021-07-12 | 2021-10-26 | 中国一冶集团有限公司 | Drag pipe slurry condensate and preparation method and application method thereof |
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Application publication date: 20200211 |