CN103086680A - Lightweight silt foam composite soil and preparation method thereof - Google Patents
Lightweight silt foam composite soil and preparation method thereof Download PDFInfo
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- CN103086680A CN103086680A CN201310032812XA CN201310032812A CN103086680A CN 103086680 A CN103086680 A CN 103086680A CN 201310032812X A CN201310032812X A CN 201310032812XA CN 201310032812 A CN201310032812 A CN 201310032812A CN 103086680 A CN103086680 A CN 103086680A
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- mixed soil
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- 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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- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to lightweight silt foam composite soil which is characterized by comprising the following components by mass percent: 81% to 85% of raw soil as, 10.5% to 13.5% of cement as a curing agent, 2.5% to 4.5% of gypsum powder or silicon powder and 1% to 3% of lightweight materials. The invention further discloses a preparation method of the lightweight silt foam composite soil. The lightweight silt foam composite soil has the advantages of light weight, high strength, good independence, short construction period, waste recycling and environmental protection. In addition, the lightweight silt foam composite soil can solve the problems of uneven settlement and vehicle bumping at a bridge head, poor stability of a retaining wall, untight pressing of a pipe ditch, slumping of a side slope and the like due to the soil filling on a roadbed. Therefore, the lightweight silt foam composite soil is an ideal civil engineering material and can be widely applied to the construction of transportation, civil engineering and hydraulic engineering.
Description
Technical field
The present invention relates to a kind of light mixed soil and preparation method thereof, relate in particular a kind of light mixed soil that mud and porous plastics be prepared from and preparation method thereof that utilizes, belong to traffic, architecture engineering material technical field.
Background technology
China is in the period of economic construction high speed development at present, in many large-scale earthworks, as all needing a large amount of embankments with soil in the reinforcing of the construction of motorway, bank of river, building embankment engineering, oceanographic engineering.At present, these soil generally by excavation, the riverbeds of ploughing adopt sand, the method such as cut into a mountain for quarrying obtains, but the earthwork resource that these methods obtain is limited.And these methods also can bring many negative impacts, as cause soil erosion and farmland minimizing etc.Due in China, coastland particularly, engineering civil engineering side amount is large, minimizing along with natural resource, the exploitation of the earthwork is more and more difficult, because of the rise of price and the prolongation of shipment distance, cubic metre of earth transportation of long distance is just very uneconomical again, and engineering earth has become some particularly important cost factors of the development ﹠ construction of Larger Engineering Projects.Meanwhile, the starting of China coast harbour coastal engineering, Inland Waterway Channel dredging engineering and inland lake environmental improvement engineering, the generation of a large amount of dredging silts has become inevitable.The abandoning nearby of dredging silt bury can produce occupy cultivated land, the environmental problems such as the Pollutants Diffusion when stacking, polluted river and ocean environment.Adopt dehydration, these two kinds of methods of sintering to be only applicable to the processing to the dredging silt of short run, high-moisture, but cost is higher, and sintering process is inapplicable for the too high dredging silt of sand content.The environmental pollution that a large amount of dredging silts that produce bring has become the problem that we need to be resolved hurrily at present.
Summary of the invention
Be to solve the deficiencies in the prior art, the object of the present invention is to provide a kind ofly have lightweight, the mud foam grain light mixed soil of the advantages such as high-strength, independence good, the construction period is short, regenerated resource development and utilization and environment protection and preparation method thereof.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of mud foam grain light mixed soil is characterized in that, comprises that the mass percent of following component and each component is:
Raw material soil: 81% ~ 85%;
Solidifying agent cement: 10.5% ~ 13.5%;
Terra alba or silica flour: 2.5% ~ 4.5%;
Light material: 1% ~ 3%.
Further, the density of described mud foam grain light mixed soil is 0.5 ~ 1.2g/cm
3, unconfined compression strength is 100 ~ 1000kPa.
Described raw material soil is 50% ~ 60% dredging silt less than 5mm, water ratio for particle diameter.
And described solidifying agent cement is at least a in silicate cement, trass cement, portland blast-furnace slag cement.
In addition, described light material is at least a in expanded polystyrene particle, waste plastic foam and waste tire particle.And the density of described expanded polystyrene particle is 0.02 ~ 0.04g/cm
3, particle diameter is 1 ~ 3mm.
A kind of preparation method of mud foam grain light mixed soil is characterized in that, comprises the following steps:
(1) raw materials soil paste: raw material soil and solidifying agent cement are joined in hybrid processor according to proportioning claimed in claim 1 mix by stirrer, obtain the raw material soil paste until stir;
(2) preparation mud foam grain light mixed soil: light material and terra alba or silica flour are added in raw material soil paste in hybrid processor according to proportioning claimed in claim 1, obtain mud foam grain light mixed soil after then stirring.
in above-mentioned preparation method, add solidifying agent cement in raw material soil after, solidifying agent cement particle aquation generates the silicate cement compound, the granule body larger with the cementing formation of little aggregate in raw material soil, simultaneously, the fibrous reticulum trellis that the solidifying agent hydrated cementitious generates, the rod shape, the tabular product of hexagonal is filled in hole between a body, play the chain effect of drawknot, the raw material soil microstructure is transformed into extremely strong network-like cement structure, in the present invention, the raw material soil paste that raw material soil and solidifying agent cement form has played skeleton function, be used for bearing most load.
And because the particle of light material has metathesis and steric effect, reduced a part of intensity of raw material soil paste skeleton of the present invention, make soil property lighten.
In addition, subsidiary material or other similar additives such as the terra alba of interpolation or silica flour not only can reduce the consumption of solidifying agent cement, can also play catalysis, the purpose of cure material early.
The invention has the beneficial effects as follows:
1, the present invention prefers to use novel light material and prepares mud foam grain light mixed soil, can be applicable to that subgrade engineering bankets, abutment and the retaining wall back of the body bankets, many construction projects such as backfill soil of underground works and pipe engineering, can reduce the sick disasters such as settlement of subgrade, bumping at bridge-head, side slope slumping, backfill sedimentation be excessive, have extensive engineering using value;
2, the present invention has the technical characterstics such as production method is simple, cost of manufacture is low, construction period is short;
3, to adopt the discarded dredging silt of engineering and waste polystyrene foamed plastics be main raw material in the present invention, and its raw material sources extensively and very are easy to get, and have not only protected environment but also realized utilization of waste material, have significant economic benefit and social benefit.
Embodiment
Below in conjunction with specific embodiment, the present invention is done concrete introduction.
In the present embodiment, described raw material soil is 50% ~ 60% dredging silt less than 5mm, water ratio for particle diameter, and the label of described solidifying agent cement is 32.5, at least a in silicate cement, trass cement, portland blast-furnace slag cement.And described light material is expanded polystyrene particle, and it also can be waste plastic foam or waste tire particle certainly, or at least a in three kinds of materials, and in the present embodiment, the density of described expanded polystyrene particle is 0.02 ~ 0.04g/cm
3, particle diameter is 1 ~ 3mm.
Embodiment 1
Mud foam grain light mixed soil comprises that the mass percent of following component and each component is: dredging silt 84%, cement (label 32.5) 12.5%, terra alba or silica flour 2.5%, foam grain 1%.
Embodiment 2
Mud foam grain light mixed soil comprises that the mass percent of following component and each component is: former dredging silt 83%, cement (label 32.5) 11.5%, terra alba or silica flour 3.5%, foam grain 2%.
Embodiment 3
Mud foam grain light mixed soil comprises that the mass percent of following component and each component is: dredging silt 81%, cement (label 32.5) 10.5%, terra alba or silica flour 4.5%, foam grain 3%.
The preparation method of the described mud foam grain of above-described embodiment 1-3 light mixed soil is:
(1) raw materials soil paste: raw material soil and solidifying agent cement are joined in hybrid processor according to proportioning claimed in claim 1 mix by stirrer, obtain the raw material soil paste until stir;
(2) preparation mud foam grain light mixed soil: light material and terra alba or silica flour are added in raw material soil paste in hybrid processor according to proportioning claimed in claim 1, obtain mud foam grain light mixed soil after then stirring.
And when construction operation, with pump, mud foam grain light mixed soil slurry is sent to operation side, carry out pouring construction.
Show through test:
The mud foam grain light mixed soil that embodiment 1 prepares maintenance under the standard conditions of standard atmospheric pressure, 18 ~ 20 ° of C of temperature and humidity 100%, the real density of 28d is 0.897g/cm
3, unconfined compression strength is 260kPa.
The mud foam grain light mixed soil that embodiment 2 prepares maintenance under the standard conditions of standard atmospheric pressure, 18 ~ 20 ° of C of temperature and humidity 100%, the real density of 28d is 0.796g/cm
3, unconfined compression strength is 220kPa.
The mud foam grain light mixed soil that embodiment 3 prepares maintenance under the standard conditions of standard atmospheric pressure, 18 ~ 20 ° of C of temperature and humidity 100%, the real density of 28d is 0.681g/cm
3, unconfined compression strength is 180kPa.
Through above-mentioned test as can be known: the present invention is by adopting light weight method to process dredging silt, the lightweight treatment process refers to add solidifying agent material and light material in dredging silt, converts it into the treatment process into new geomaterial-light mixed soil.This novel light earth working material has advantages of lightweight, high-strength, independence good, the construction period is short, regenerated resource development and utilization and environment protection; can solve non-uniform settling and bumping at bridge-head that Roadbed Soil causes, stability of retaining wall is poor, the pipe trench compacting is not close and the problem such as side slope slumping; be a kind of desirable civil material, can be widely used in the construction of traffic, building and hydro project.
The above; be only the specific embodiment of the present invention, protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement are within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (7)
1. mud foam grain light mixed soil, is characterized in that, comprises that the mass percent of following component and each component is:
Raw material soil: 81% ~ 85%;
Solidifying agent cement: 10.5% ~ 13.5%;
Terra alba or silica flour: 2.5% ~ 4.5%;
Light material: 1% ~ 3%.
2. mud foam grain light mixed soil according to claim 1, is characterized in that, the density of described mud foam grain light mixed soil is 0.5 ~ 1.2g/cm
3, unconfined compression strength is 100 ~ 1000kPa.
3. mud foam grain light mixed soil according to claim 1, is characterized in that, described raw material soil is 50% ~ 60% dredging silt less than 5mm, water ratio for particle diameter.
4. a kind of mud foam grain light mixed soil according to claim 1, is characterized in that, described solidifying agent cement is at least a in silicate cement, trass cement, portland blast-furnace slag cement.
5. mud foam grain light mixed soil according to claim 1, is characterized in that, described light material is at least a in expanded polystyrene particle, waste plastic foam and waste tire particle.
6. mud foam grain light mixed soil according to claim 1, is characterized in that, the density of described expanded polystyrene particle is 0.02 ~ 0.04g/cm
3, particle diameter is 1 ~ 3mm.
7. the preparation method of mud foam grain light mixed soil, is characterized in that, comprises the following steps:
(1) raw materials soil paste: raw material soil and solidifying agent cement are joined in hybrid processor according to proportioning claimed in claim 1 mix by stirrer, obtain the raw material soil paste until stir;
(2) preparation mud foam grain light mixed soil: light material and terra alba or silica flour are added in raw material soil paste in hybrid processor according to proportioning claimed in claim 1, obtain mud foam grain light mixed soil after then stirring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310032812XA CN103086680A (en) | 2013-01-29 | 2013-01-29 | Lightweight silt foam composite soil and preparation method thereof |
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| CN201310032812XA CN103086680A (en) | 2013-01-29 | 2013-01-29 | Lightweight silt foam composite soil and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669435A (en) * | 2015-01-14 | 2015-06-03 | 河南工业大学 | Preparation method for EPS sludge mixed light-weight soil |
| CN106149498A (en) * | 2016-06-28 | 2016-11-23 | 东南大学 | The manufacture method of waste soil expanded polystyrene particle mixing light road bank stuffing |
| CN107312349A (en) * | 2017-06-20 | 2017-11-03 | 肥西县碧涛建材有限公司 | A kind of environmental protection brick and preparation method thereof |
| CN107601980A (en) * | 2017-09-10 | 2018-01-19 | 湖南中大园林环境科技有限公司 | A kind of cement enhancing and alkalescence improvement alien earth sparging composite plant for side slope protection is native, prepares and applies |
| CN108298907A (en) * | 2018-02-11 | 2018-07-20 | 湖北工业大学 | A kind of electric heating carbon fiber polystyrene foam particles lightweight base material and its preparation process |
| CN109626899A (en) * | 2018-12-20 | 2019-04-16 | 江苏兆通工程技术有限公司 | A kind of foam mud mix light-textured soil and preparation method thereof |
| CN109940755A (en) * | 2019-03-15 | 2019-06-28 | 王继忠 | A kind of sorting and preparation method of filling material |
| CN115010425A (en) * | 2022-05-17 | 2022-09-06 | 中国地质大学（武汉） | Sludge curing agent for industrial slag combined with waste polystyrene foam particles |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448356A (en) * | 2003-05-07 | 2003-10-15 | 河海大学 | Formed plastic and particle mixed light-weight earth and production method thereof |
-
2013
- 2013-01-29 CN CN201310032812XA patent/CN103086680A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448356A (en) * | 2003-05-07 | 2003-10-15 | 河海大学 | Formed plastic and particle mixed light-weight earth and production method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669435A (en) * | 2015-01-14 | 2015-06-03 | 河南工业大学 | Preparation method for EPS sludge mixed light-weight soil |
| CN106149498A (en) * | 2016-06-28 | 2016-11-23 | 东南大学 | The manufacture method of waste soil expanded polystyrene particle mixing light road bank stuffing |
| CN107312349A (en) * | 2017-06-20 | 2017-11-03 | 肥西县碧涛建材有限公司 | A kind of environmental protection brick and preparation method thereof |
| CN107601980A (en) * | 2017-09-10 | 2018-01-19 | 湖南中大园林环境科技有限公司 | A kind of cement enhancing and alkalescence improvement alien earth sparging composite plant for side slope protection is native, prepares and applies |
| CN107601980B (en) * | 2017-09-10 | 2020-04-24 | 湖南中大园林环境科技有限公司 | Cement reinforced and alkaline improved alien soil spray-seeding composite planting soil for slope protection, preparation and application |
| CN108298907A (en) * | 2018-02-11 | 2018-07-20 | 湖北工业大学 | A kind of electric heating carbon fiber polystyrene foam particles lightweight base material and its preparation process |
| CN109626899A (en) * | 2018-12-20 | 2019-04-16 | 江苏兆通工程技术有限公司 | A kind of foam mud mix light-textured soil and preparation method thereof |
| CN109940755A (en) * | 2019-03-15 | 2019-06-28 | 王继忠 | A kind of sorting and preparation method of filling material |
| CN115010425A (en) * | 2022-05-17 | 2022-09-06 | 中国地质大学（武汉） | Sludge curing agent for industrial slag combined with waste polystyrene foam particles |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Jian Inventor after: Wang Xianmei Inventor after: Di Jianfeng Inventor after: Fang Haidong Inventor after: Chen Jingya Inventor after: Dong Xuewu Inventor after: Zhang Jiankang Inventor after: Xiao Quan Inventor after: Wang Xingnan Inventor before: Zhang Jian Inventor before: Xu Yigang Inventor before: Hu Anbing Inventor before: Wang Xianmei Inventor before: Chen Jingya Inventor before: Dong Xuewu Inventor before: Zhang Jiankang Inventor before: Xiao Quan Inventor before: Wang Xingnan |
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Free format text: CORRECT: INVENTOR; FROM: ZHANG JIAN XU YIGANG HU ANBING WANG XIANMEI CHEN JINGYA DONG XUEWU ZHANG JIANKANG XIAO QUAN WANG XINGNAN TO: ZHANG JIAN WANG XIANMEI ZHAI JIANFENG FANG HAIDONG CHEN JINGYA DONG XUEWU ZHANG JIANKANG XIAO QUAN WANG XINGNAN |
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Application publication date: 20130508 |