CN109440560A - A kind of ardealite lime stablized soil - Google Patents
A kind of ardealite lime stablized soil Download PDFInfo
- Publication number
- CN109440560A CN109440560A CN201811242739.8A CN201811242739A CN109440560A CN 109440560 A CN109440560 A CN 109440560A CN 201811242739 A CN201811242739 A CN 201811242739A CN 109440560 A CN109440560 A CN 109440560A
- Authority
- CN
- China
- Prior art keywords
- ardealite
- lime
- soil
- parts
- stablized
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- 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
-
- 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
- E01C3/04—Foundations produced by soil stabilisation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention proposes a kind of ardealite lime stablized soil, the raw material including following parts by weight: modifying agent can be used to be modified processing for 10~20 parts of lime, 5~30 parts of ardealite, 450~485 parts of soil, the ardealite；It is all satisfied job specfication and design requirement according to the compactness of entity project test section, flatness, deflection value, intensity, illustrates that ardealite lime stablized soil punishment collapsible loess subgrade has good pavement performance；Comprehensively consider from technology, economic aspect, under the premise of meeting road requirement, it is recommended that the alternative solution proportion of 5% rendzinas is lime: ardealite: soil=3:2:95, the alternative solution proportion of 8% rendzinas is lime: ardealite: soil=3:5:92, simultaneously, comparison uses the design mixture proportion of 5%, 8% dosage rendzinas, so that project cost is reduced about 10%~15% compared with lime stabilized soil project cost using ardealite lime stablized soil, economic benefit is obvious.
Description
Technical field
The present invention relates to engineering roadbed technical field, specially a kind of ardealite lime stablized soil.
Background technique
China central and west regions loess distribution is extensive, area about 63.2 × 104km2, account for about the national land gross area
6.6%.It is big wet that Guanzhong area of Shaanxi Province quilt " Code for building construction in collapsible loess zone " (GB50025-2004) is classified as the whole nation seven
Fall into one of property loess distribution region.
Collapsible loess belongs to bad engineering earth, and main feature is exactly that compressibility is lower in its natural state for the soil body, intensity
It is higher, and after meeting water immersion, the intensity of the soil body can drastically reduce, while generate biggish compressive deformation.Just because of collapsibility
This unfavorable geology characteristic of loess can generate highway construction, industry with civil buildings construction and Other Engineering construction certain
Harm.Lime, cement, industrial residue etc. is mostly used to carry out comprehensive stability collapsible loess subgrade to saturated yielding in current entity engineering
Property loess is handled.And since national environmental protection policy requirements make the manufacturer of traditional inorganic binder such as cement, lime
It sharply reduces, material shortage and price are constantly soaring.Ardealite and fine coal ash component have certain similitude, as can using changing
Property agent excite its activity, ardealite can also serve as a kind of outer-penetrating agent to solve the problems, such as the collapsibility of loess subgrade.Meanwhile phosphorus
Gypsum discharge amount increases year by year, and pollutes environment.
Some patented technologies about ardealite, lime or collapsible loess subgrade material have been had already appeared at present, it is such as public
A kind of Chinese patent " method for producing building material with low-temperature ceramic modified industry by-product gypsum " of 106064921 A of the number of opening CN, the patent
In refer to be modified ardealite processing, but there is no be applied to in terms of the improvement of collapsible loess subgrade；Publication number
The Chinese patent " a kind of lime stabilization clay recycle powder mixture " of 104404849 B of CN uses lime and recycling in the patent
Powder and clay carry out ratio mixing system material, but there is no in terms of the improvement being applied to collapsible loess subgrade；Publication number CN
A kind of Chinese patent " ardealite stablizes collapsible loess subgrade material and preparation method " of 108546066 A makes in the patent
Ratio hybrid governance collapsible loess subgrade problem, but phosphorus stone are carried out with ardealite, flyash and calcium hydroxide and collapsible loess
The ratio that cream, flyash and calcium hydroxide use is higher, and cost of manufacture is high.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of ardealite lime stablized soil,
The problems in background technique can effectively be solved.
To achieve the above object, the invention provides the following technical scheme: a kind of ardealite lime stablized soil, including with
The raw material of lower parts by weight: 10~20 parts of lime, 5~30 parts of ardealite, 450~485 parts of soil.
As a preferred technical solution of the present invention, a kind of ardealite lime stablized soil, including it is following
The raw material of parts by weight: 15 parts of lime, 10 parts of ardealite, 475 parts of soil.
As a preferred technical solution of the present invention, a kind of ardealite lime stablized soil, including it is following
The raw material of parts by weight: 15 parts of lime, 25 parts of ardealite, 460 parts of soil.
As a preferred technical solution of the present invention, modifying agent can be used to be modified processing for the ardealite.
As a preferred technical solution of the present invention, the soil is collapsible loess engineering construction place normal soil.
A kind of experimental method of ardealite lime stablized soil, comprising the following steps:
S1. hit-solid experiment is carried out to ardealite lime stablized soil, detects it after hitting reality, cutting sample, demoulding, weighing
Maximum moisture content and maximum dry density；
S2. 7d age unconfined compression strength test is carried out to ardealite lime stablized soil test specimen, and it is anti-to detect it
Compressive Strength；
S3. it after the soaked 96h of ardealite lime stablized soil test specimen, will be carried and tested than (CBR), and it is swollen to detect its
Bulk and CBR value；
S4. entity project experiment is carried out to ardealite lime stablized soil, and is detected, examined including compactness
Survey, deflection testing, flatness detection and unconfined compressive strength detection.
Compared with prior art, it the invention proposes a kind of ardealite lime stablized soil, is tested according to entity project
Compactness, flatness, deflection value, the intensity of section are all satisfied job specfication and design requirement, illustrate that ardealite lime is comprehensive
Stablizing soil punishment collapsible loess subgrade has good pavement performance；Comprehensively consider from technology, economic aspect, is used meeting road
Under the premise of it is required that, it is proposed that the alternative solution proportion of 5% rendzinas is lime: ardealite: soil=3:2:95,8% rendzinas
Alternative solution proportion is lime: ardealite: soil=3:5:92, meanwhile, comparison is cooperated using the design of 5%, 8% dosage rendzinas
Than, using modified ardealite lime stablized soil make project cost compared with lime stabilized soil project cost reduce about 10%~
15%, economic benefit is obvious.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain, it is clear that described embodiment is only this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Embodiment
The present invention provides a kind of ardealite lime stablized soil, the raw material including following parts by weight: 10~20 parts of lime,
Modifying agent can be used to be modified processing for 5~30 parts of ardealite, 450~485 parts of soil, the ardealite, and the soil is collapsibility
Loess engineering job location normal soil.
Its experimental method, comprising the following steps:
S1. hit-solid experiment is carried out to the ardealite lime stablized soil of different ratios of raw materials, by hitting reality, cutting sample, de-
Its maximum moisture content is detected after mould, weighing and maximum dry density, experimental result are as follows:
S2. the examination of 7d age unconfined compressive strength is carried out to the ardealite lime stablized soil test specimen of different ratios of raw materials
It tests, and detects its compression strength, testing result is as follows:
S3. it by after the soaked 96h of ardealite lime stablized soil test specimen of different ratios of raw materials, is carried than (CBR)
Test, and its swell increment and CBR value are detected, testing result is as follows:
S4. entity project experiment is carried out to ardealite lime stablized soil, and is detected, examined including compactness
Survey, deflection testing, flatness detection and unconfined compressive strength detection, compacting testing result are as follows:
| Pile No. | Lime: ardealite: soil | Compactness mean value (%) sand replacement method |
| K112+180--K112+250 | 3:2:95 | 96.9 |
| K112+250--K112+320 | 2:1:97 | 96.7 |
| K112+320--K112+400 | 3:5:92 | 97.2 |
；Deflection testing result is as follows:
；
Flatness detection results are as follows:
| Pile No. | Lime: ardealite: soil | Flatness qualification rate |
| K112+180--K112+250 | 3:2:95 | 100 |
| K112+250--K112+320 | 2:1:97 | 100 |
| K112+320--K112+400 | 3:5:92 | 100 |
；Unconfined compressive strength testing result is as follows:
The invention proposes a kind of ardealite lime stablized soil, according to the compactness of entity project test section, smooth
Degree, deflection value, intensity are all satisfied job specfication and design requirement, illustrate that ardealite lime stablized soil punishes collapsibility
Loess subgrade has good pavement performance；Comprehensively consider from technology, economic aspect, under the premise of meeting road requirement, builds
The alternative solution proportion for discussing 5% rendzinas is lime: ardealite: soil=3:2:95, and the alternative solution proportion of 8% rendzinas is stone
Ash: ardealite: soil=3:5:92, meanwhile, comparison uses the design mixture proportion of 5%, 8% dosage rendzinas, using modified phosphorus stone
Cream lime stablized soil makes project cost reduce about 10%~15% compared with lime stabilized soil project cost, and economic benefit is obvious.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of ardealite lime stablized soil, which is characterized in that the raw material including following parts by weight: 10~20 parts of lime,
5~30 parts of ardealite, 450~485 parts of soil.
2. a kind of ardealite lime stablized soil according to claim 1, which is characterized in that including following parts by weight
Raw material: 15 parts of lime, 10 parts of ardealite, 475 parts of soil.
3. a kind of ardealite lime stablized soil according to claim 1, which is characterized in that including following parts by weight
Raw material: 15 parts of lime, 25 parts of ardealite, 460 parts of soil.
4. a kind of ardealite lime stablized soil according to claim 1, which is characterized in that the ardealite can be used
Modifying agent is modified processing.
5. a kind of ardealite lime stablized soil according to claim 1, which is characterized in that the soil is that collapsibility is yellow
Geotechnological journey job location normal soil.
6. a kind of experimental method of ardealite lime stablized soil, which comprises the following steps:
S1. hit-solid experiment is carried out to ardealite lime stablized soil, its maximum is detected after hitting reality, cutting sample, demoulding, weighing
Moisture content and maximum dry density；
S2. 7d age unconfined compression strength test is carried out to ardealite lime stablized soil test specimen, and detects its pressure resistance
Degree；
S3. it after the soaked 96h of ardealite lime stablized soil test specimen, will be carried and tested than (CBR), and detect its swell increment
With CBR value；
S4. entity project experiment is carried out to ardealite lime stablized soil, and is detected, detected including compactness,
Deflection testing, flatness detection and unconfined compressive strength detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811242739.8A CN109440560A (en) | 2018-10-24 | 2018-10-24 | A kind of ardealite lime stablized soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811242739.8A CN109440560A (en) | 2018-10-24 | 2018-10-24 | A kind of ardealite lime stablized soil |
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| Publication Number | Publication Date |
|---|---|
| CN109440560A true CN109440560A (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811242739.8A Pending CN109440560A (en) | 2018-10-24 | 2018-10-24 | A kind of ardealite lime stablized soil |
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| CN (1) | CN109440560A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424484A (en) * | 2020-04-20 | 2020-07-17 | 中国科学院地质与地球物理研究所 | Construction method for reinforcing loess embankment by combining microbial mineralization and phosphogypsum |
| CN111424486A (en) * | 2020-04-20 | 2020-07-17 | 中国科学院地质与地球物理研究所 | Construction method for loess embankment settlement deformation control by adopting phosphogypsum |
| CN113789692A (en) * | 2021-08-27 | 2021-12-14 | 东华理工大学 | Comprehensive treatment method for collapsible loess subgrade |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929022A (en) * | 2015-06-10 | 2015-09-23 | 三峡大学 | Roadbed construction technology with ardealite improved expansive soil |
| US20160023949A1 (en) * | 2007-05-31 | 2016-01-28 | Utter Technology, Llc | Method for forming products from a flue gas desulfurization by-product and products formed thereby |
| CN108083739A (en) * | 2018-01-26 | 2018-05-29 | 湖北恒沁环保科技有限责任公司 | A kind of ardealite hydraulicity pavement material and preparation method thereof |
| CN108409276A (en) * | 2018-05-09 | 2018-08-17 | 王晓春 | A kind of modified ardealite roadbed material |
| CN108546066A (en) * | 2018-05-02 | 2018-09-18 | 长安大学 | A kind of ardealite stablizes collapsible loess subgrade material and preparation method |
| CN108647872A (en) * | 2018-05-02 | 2018-10-12 | 长安大学 | A kind of ardealite base material life cycle environmental impact method for quantitatively evaluating |
-
2018
- 2018-10-24 CN CN201811242739.8A patent/CN109440560A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160023949A1 (en) * | 2007-05-31 | 2016-01-28 | Utter Technology, Llc | Method for forming products from a flue gas desulfurization by-product and products formed thereby |
| CN104929022A (en) * | 2015-06-10 | 2015-09-23 | 三峡大学 | Roadbed construction technology with ardealite improved expansive soil |
| CN108083739A (en) * | 2018-01-26 | 2018-05-29 | 湖北恒沁环保科技有限责任公司 | A kind of ardealite hydraulicity pavement material and preparation method thereof |
| CN108546066A (en) * | 2018-05-02 | 2018-09-18 | 长安大学 | A kind of ardealite stablizes collapsible loess subgrade material and preparation method |
| CN108647872A (en) * | 2018-05-02 | 2018-10-12 | 长安大学 | A kind of ardealite base material life cycle environmental impact method for quantitatively evaluating |
| CN108409276A (en) * | 2018-05-09 | 2018-08-17 | 王晓春 | A kind of modified ardealite roadbed material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424484A (en) * | 2020-04-20 | 2020-07-17 | 中国科学院地质与地球物理研究所 | Construction method for reinforcing loess embankment by combining microbial mineralization and phosphogypsum |
| CN111424486A (en) * | 2020-04-20 | 2020-07-17 | 中国科学院地质与地球物理研究所 | Construction method for loess embankment settlement deformation control by adopting phosphogypsum |
| CN113789692A (en) * | 2021-08-27 | 2021-12-14 | 东华理工大学 | Comprehensive treatment method for collapsible loess subgrade |
| CN113789692B (en) * | 2021-08-27 | 2023-08-22 | 宁夏送变电工程有限公司 | Comprehensive treatment method for collapsible loess subgrade |
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Application publication date: 20190308 |
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