CN106929026A - A kind of permeability-reducing admixture and its construction method for carbonate containing soil - Google Patents
A kind of permeability-reducing admixture and its construction method for carbonate containing soil Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
A kind of permeability-reducing admixture and its construction method for carbonate containing soil, the permeability-reducing admixture for carbonate containing soil of the present invention, its effective ingredient is constituted and the mass percent of each component is：5%~15% alkali metal organosilicate, 0.5%~1% non-ionic polyacrylamide, 10%~25% waterglass, 1%~3% alum, 5%~10% sodium sulphate, 1%~3% sodium citrate, 1%~5% hydroxymethyl cellulose or polyanion cellulose, 1%~3% triisopropanolamine, 10%~25% calcium chloride solution, 40%~65% water.Present invention additionally comprises the construction method of the permeability-reducing admixture.The soil anti-penetrating agent of the present invention, the raw material for being used be source be easy to get, cheap chemical reagent, the cost of permeability-reducing admixture can be reduced, be the easy alkaline land soil permeability-reducing admixture of excellent performance, with low cost, application method.
Description
Technical field
It is more particularly to a kind of to be directed to calcium carbonate, carbonic acid the present invention relates to a kind of soil anti-penetrating agent and its construction method
The permeability-reducing admixture and its construction method of the Calcareous soils such as magnesium.
Background technology
Natural soil has certain water penetration, and many large-scale storing facilities of water such as salt pans, for reduces cost, are being built
During all can directly using scene soil inevitably be lost in the form of seepage as material, bittern is built.Salt
The seepage in field can cause valuable resource in bittern（Such as potassium, lithium etc.）Loss, on the one hand cause salt pan unit production capacity decline,
Increase production cost；On the other hand because the storage capacity of the bittern mineral resources of underground storage is limited, the loss of resource can be to ore deposit
The length of service and resource provision ability on mountain cause large effect.According to statistics, NORTHWEST CHINA area respectively carries potassium, lithium producer,
Salt pan is up to 20% ~ 40% during shining halogen with the sylvite and lithium salts resource of leakiness loss.Additionally, the bittern meeting of salt pan seepage
Environment to surrounding produces serious pollution, and the destruction ecological balance in the neighbourhood produces new environmental problem.Therefore, develop
Performance is good, the permeability-reducing admixture of low cost, can not only reduce production and the operating cost in salt pan, is conducive to the comprehensive of China's salt lake resources
Close and develop, while also having far-reaching environment protection significance.
Up to the present, anti-seepage method conventional in construction is：Using pitch, concrete or plastic film as antiseepage
Layer is covered in soil surface, prevents the loss of Brine resources.However, pitch mechanical strength and shear resistance are poor, easily cracking and
Influence anti-seepage effect；Bittern typically all contains substantial amounts of inorganic ion, with stronger corrosive power, concrete corrosion resistant
Poor, this can shorten its service life, increase later maintenance cost；For the seepage of salt pan, original position is carried out to salt-field soil
Compacting and plastic film shop fixtures are anti-seepage methods relatively common at present.But, original position compacting can not change the property of soil itself,
Still there are a large amount of trickle holes and crack to be retained, anti-seepage effect has much room for improvement；Plastic film shop fixtures is relatively costly, construction
Difficulty is larger, is normally only used for the antiseepage of specific occasion, is spread using plastic film as salt Tanaka's economic benefit sinker pond higher
The antiseepage mode at bottom.
CN100417689C discloses a kind of permeability-reducing admixture for paddy field, and its method is by polyacrylamide, calper calcium peroxide, bentonite
It is sprinkled into paddy field after being mixed with a certain amount of fine sand with potassium dihydrogen phosphate.
CN102977893A discloses a kind of Agricultural water retention anti-seepage agent, and it is by bentonite, Portland clinker, gypsum
Powder and anion-polyacrylamide are constituted.The Agricultural water retention anti-seepage agent is mainly used in the antiseepage section under the fresh water environment of farmland
Can water, be applied to the stronger particular places containing high salt concentration or corrosivity such as salt pan and then have no report.
CN105084805A discloses a kind of inorganic-organic hybrid crystalline waterproofing agent, and it is by sodium metasilicate, methane-siliconic acid
Sodium, sodium alginate, gelatin, dodecyl ethyoxyl sulphonic acid betaine, sodium carbonate, sodium citrate, triethanolamine, alum,
Calcium sulfate, polyacrylamide, calcium lignosulfonate, HEMC, calcium hydroxide, boric acid and water composition.But the public affairs
Can evolution case be mainly used in the waterproof in the concrete construction field such as roofing, basement and toilet, be applied to salt-field soil
Description is then had no Deng containing high salt concentration or the stronger particular place of corrosivity.
Above permeability-reducing admixture is to western China（Such as Qinghai, Xinjiang, Tibet）The soil property built used by salt pan is different
The antiseepage on the top layer or thin solum of all kinds of specific compositions has no report, and contains substantial amounts of carbonic acid in these regional soil
The carbonate such as calcium, magnesium carbonate so that it is internal containing a large amount of holes not of uniform size, easily causes seepage.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, there is provided a kind of cost is relatively low, easy to use
Permeability-reducing admixture and its construction method for carbonate containing soil；It is particularly well-suited to the salt of the carbonate such as calcium carbonate, magnesium carbonate
The antiseepage of field soil.
The present invention solve its technical problem use technical scheme be, the antiseepage for carbonate containing soil of the present invention
Agent, its effective ingredient is constituted and the mass percent of each component is：Mass fraction is 5%~15% alkali metal organosilicate,
Mass fraction is 0.5%~1% non-ionic polyacrylamide, and mass fraction is 10%~25% waterglass, and mass fraction is 1%
~3% alum, mass fraction is 5%~10% sodium sulphate, and mass fraction is 1%~3% sodium citrate, mass fraction
It is 1%~5% hydroxymethyl cellulose or polyanion cellulose, mass fraction is 1%~3% triisopropanolamine, mass fraction
It is 10%~25% calcium chloride solution, mass fraction is 40%~65% water, and the percentage sum of above-mentioned raw materials is 100%.
In the alkali metal organosilicate, preferably sodium methyl silicate, potassium methyl silicate one in or both mixture.
Its effect is reacted with the hydroxyl on soil particle surface, in upper soll layer and to be internally formed insoluble hydrophobic compounds thin
Film, while hole and crack in filling soil, so as to realize the purpose of waterproof.Additionally, alkali metal organosilicate also has
Microdilatancy is acted on, and can be compensated contraction, be reduced cracking.
Research shows that soil can be linked at one by polyacrylamide with soil by the effect of the forms such as physics, chemistry
Rise and form network structure, improve the pliability of alkaline land soil, reduce too strong the formed cracking of fragility, strengthen the antiseepage of soil
Performance.Meanwhile, polyacrylamide can form gel with soil reaction, can fill and block the hole in soil and crack,
Further enhance the anti-permeability performance of soil.Meanwhile, from non-ionic polyacrylamide Polyacrylamide can be avoided easy
The problem of hydrolysis.
The molecular weight of the non-ionic polyacrylamide is preferably 5000000~8000000.If its molecular weight is too small, nothing
Method reaches the purpose for improving soil property；Molecular weight can then make permeability-reducing admixture viscosity in itself excessive very much greatly, be unfavorable for construction
Carry out, while can also influence actual anti-seepage effect.
Waterglass, its effect is to react to form calcium silicate crystals with the calcium ion in soil, increases soil
Density.In addition, the silica dioxide granule that sodium metasilicate is formed in the curing process also can be in filling soil hole and crack,
Increase the purpose of packing and antiseepage so as to reach.
The modulus of water glass preferably 2.2~2.8, preferably 30~45 ° Be of Baume degrees.
Alum, sodium sulphate can react to be formed with the calcium ion in alkaline land soil and be insoluble in water and with certain swollen
The entringite of swollen performance, strengthens the packing and water resistance of soil.Additionally, alum can also accelerate the reaction speed of sodium metasilicate
Degree, promotes the formation of silica dioxide granule.Sodium sulphate can be then that soil supplements certain sulfate ion, promote entering for reaction
OK, the waterproof ability of soil is increased.
Used as dispersant, each component is well mixed sodium citrate in can promoting permeability-reducing admixture, enables abundant with soil
Reaction.
The colloid that hydroxymethyl cellulose or polyanion cellulose can be formed as permeability-reducing admixture and soil reaction point
Powder and protective agent, it is possible to increase the endurance quality of antiseepage soil.
Triisopropanolamine is a kind of surfactant, can promote being fully contacted, reacting, additionally for permeability-reducing admixture and soil
Sodium methyl silicate and soil reaction film forming can be promoted, efficiency of construction is improved.
The mass concentration of the calcium chloride solution preferably 42%~50%.The addition of calcium chloride, on the one hand can making soil
The ionization equilibrium of carbanion moved to the Direction of Reaction for forming calcium carbonate crystal, the calcium carbonate fine grain of generation is filled in soil
In earth space and crack, leakage passage is blocked, increase the packing of soil；On the other hand can be that soil supplements certain other
Calcium ion, promotes other to be carried out to solid sediment such as the reaction of silicate, sulfate radical, surface hydroxyl and calcium ion, so as to carry
The barrier performance of soil high.
The construction method of the permeability-reducing admixture for carbonate containing soil of the present invention, specific implementation step is：
（1）By proportioning by waterglass, alum, sodium sulphate, sodium citrate and carboxymethylcellulose calcium or polyanion cellulose,
Triisopropanolamine is sequentially added in water, is stirred, and obtains final product antiseepage agent aid.Antiseepage agent aid can be preserved for a long time.
（2）Before construction, to alkali metal organosilicate and non-ionic polyacrylamide is successively added in antiseepage agent aid, stir
Mix uniform, obtain finished product permeability-reducing admixture.The requirement of finished product permeability-reducing admixture is used in 24 hours of configuration.
（3）Finished product permeability-reducing admixture is mixed with soil, the mode of mixing can be using sprinkling in situ or directly stirring；The original
Position sprinkling refer to using spraying by the way of, disposably or the surface that permeability-reducing admixture is sprayed onto soil is repeated several times, after 1~7 day,
Reaction is basically completed, and carries out next step operation；The mode of the direct stirring refers to taking-up soil, after crushing, by finished product antiseepage
Agent is stirred by way of mixing with soil particle mechanical agitation or manually, is well mixed, and drying 10~36 hours of making thinner is filled
Next step operation is carried out after dividing reaction；In this step, finished product permeability-reducing admixture is 1%~15%: 1, preferably 5% with the mass ratio of soil
~10%: 1；
（4）Calcium chloride solution is taken according to proportioning, to through step（3）Calcium chloride solution is sprayed in soil after treatment；Then by soil
Earth is inserted in the region for needing antiseepage（When step 3 is using sprinkling in situ, can not need herein）, ground using weight or rammer compacter
Pressure compacting, treats 7~35 days（Soil layer substantially dry）Afterwards, then in surface sprinkling finished product permeability-reducing admixture reinforcement is carried out, fountain height is soil
The 0.01%~1% of quality, preferably 0.05%~0.5%.
The present invention is the inorganic-organic hybrid type soil anti-penetrating agent that a kind of active chemical componentses are constituted, the original for being used
Material be source be easy to get, cheap chemical reagent, the cost of permeability-reducing admixture can be reduced, while between having taken into full account each component
Characteristic it is complementary, Optimization simplifies construction method, the salt easy so as to obtain excellent performance, with low cost, application method
Alkali ground soil anti-penetrating agent.
Specific embodiment
The present invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
A kind of permeability-reducing admixture for carbonate containing soil, its effective ingredient is constituted and the mass percent of each component is：
Mass fraction is 15% sodium methyl silicate, the nonionic polyacrylamide that the molecular weight that mass fraction is 1% is 8000000
Amine, mass fraction are that 22% modulus is 2.6, Baume degrees is 30 ° of waterglass of Be, mass fraction is 1.5% alum, matter
Amount fraction is 5% sodium sulphate, the sodium citrate that mass fraction is 1%, the hydroxymethyl cellulose that mass fraction is 1.5%, quality point
Number is 2% triisopropanolamine, the calcium chloride solution that mass fraction is 11%, the water that mass fraction is 40%.
The mass concentration of the calcium chloride solution is 48%.
The construction method of the permeability-reducing admixture for carbonate containing soil of the present embodiment, specific implementation pair as if calcium carbonate and
The thin solum of magnesium carbonate, specific implementation step is：
（1）Waterglass, alum, sodium sulphate, sodium citrate and carboxymethylcellulose calcium, triisopropanolamine are added successively by proportioning
Enter in water, stir, obtain final product antiseepage agent aid.
（2）Before construction, to sodium methyl silicate and non-ionic polyacrylamide is successively added in antiseepage agent aid, stirring is equal
It is even, obtain finished product permeability-reducing admixture.The requirement of finished product permeability-reducing admixture is used in 24 hours of configuration.
（3）Finished product permeability-reducing admixture is mixed with soil, form of construction work is directly stirring mixing：Shallow soil is taken out, is crushed, will
The obtained finished product permeability-reducing admixture of stirring is sufficiently mixed by churned mechanically mode with the shallow soil after crushing, finished product permeability-reducing admixture consumption
It is the 8% of soil quality, makes thinner and dry 36 hours；
（4）After reaction, calcium chloride solution is taken according to proportioning, to through step（3）Calcium chloride solution is sprayed in soil after treatment；
Then reacted soil is inserted toward seepage region, is tamped using rammer compacter and dried.After 18 days, in the soil table of compacting
A small amount of permeability-reducing admixture is sprayed in face carries out reinforcement, and fountain height is the 0.05% of soil quality.
In the present embodiment, objective for implementation is 4.5 × 10 in the leak factor being not used before this permeability-reducing admixture-5Cm/s, uses
Average leak factor after permeability-reducing admixture in 60 days is 1.3 × 10-6 cm/s。
Embodiment 2
The permeability-reducing admixture for carbonate containing soil of the present embodiment, its effective ingredient is constituted and the mass percent of each component is：
Mass fraction is 7% potassium methyl silicate, the nonionic polyacrylamide that the molecular weight that mass fraction is 0.5% is 5000000
Amine, mass fraction are that 15% modulus is 2.4, Baume degrees is 30 ° of waterglass of Be, mass fraction is 1% alum, quality
Sodium sulphate, the sodium citrate that mass fraction is 2%, the polyanion cellulose that mass fraction is 2%, mass fraction that fraction is 6%
It is 2.5% triisopropanolamine, the calcium chloride solution that mass fraction is 12%, the water that mass fraction is 52%.
The mass concentration of the calcium chloride solution is 50%.
Specific implementation pair as if the topsoil of calcium carbonate and magnesium carbonate, the present embodiment for carbonate containing soil
The construction method of permeability-reducing admixture, specific implementation step is：
（1）By proportioning by waterglass, alum, sodium sulphate, sodium citrate and polyanion cellulose, triisopropanolamine successively
It is added to the water, stirs, obtains final product antiseepage agent aid.Antiseepage agent aid can be preserved for a long time.
（2）Before construction, to potassium methyl silicate and non-ionic polyacrylamide is successively added in antiseepage agent aid, stirring is equal
It is even, obtain finished product permeability-reducing admixture.The requirement of finished product permeability-reducing admixture is used in 24 hours of configuration.
（3）Finished product permeability-reducing admixture is mixed with soil, form of construction work is sprayed in situ, by the way of spraying, by permeability-reducing admixture
The disposable surface for being sprayed onto soil, permeability-reducing admixture is 5%: 1 with the mass ratio of soil；After 5 days, reaction is basically completed, and carries out
Next step is operated；
（4）Calcium chloride solution is taken according to proportioning, to through step（3）In soil after treatment spray concentration be 50% calcium chloride it is molten
Liquid；Then tamping is used；After 30 days, spraying a small amount of permeability-reducing admixture on surface carries out reinforcement, and fountain height is soil quality
0.5%。
Objective for implementation is 6.2 × 10 in the leak factor being not used before this permeability-reducing admixture-5Cm/s, uses after permeability-reducing admixture 90
Average leak factor in it is 4.3 × 10-6 cm/s。
Embodiment 3
A kind of permeability-reducing admixture for carbonate containing soil, its effective ingredient is constituted and the mass percent of each component is：Quality point
Number is 9% sodium methyl silicate, non-ionic polyacrylamide, the mass fraction that the molecular weight that mass fraction is 0.5% is 6000000
Modulus for 12% is that 2.2, Baume degrees is 40 ° of waterglass of Be, mass fraction is 1.5% alum, mass fraction are 8%
Sodium sulphate, the sodium citrate that mass fraction is 1.5%, the polyanion cellulose that mass fraction is 2%, mass fraction be 2.5%
Triisopropanolamine, the calcium chloride solution that mass fraction is 18%, the water that mass fraction is 45%.
The mass concentration of the calcium chloride solution is 48%.
Specific implementation pair as if the topsoil of carbon containing sour magnesium, the permeability-reducing admixture for carbonate containing soil of the present embodiment
Construction method, specific implementation step is：
（1）By proportioning by waterglass, alum, sodium sulphate, sodium citrate and polyanion cellulose, triisopropanolamine successively
It is added to the water, stirs, obtains final product antiseepage agent aid.Antiseepage agent aid can be preserved for a long time.
（2）Before construction, to sodium methyl silicate and non-ionic polyacrylamide is successively added in antiseepage agent aid, stirring is equal
It is even, obtain finished product permeability-reducing admixture.The requirement of finished product permeability-reducing admixture is used in 24 hours of configuration.
（3）Finished product permeability-reducing admixture is mixed with soil, form of construction work is sprayed in situ, by the way of spraying, finished product is prevented
Penetration enhancer is disposably sprayed onto the surface of soil, and finished product permeability-reducing admixture is 8%: 1 with the mass ratio of soil；After 3 days, react substantially complete
Into carrying out next step operation；
（4）Calcium chloride solution is taken according to proportioning, to through step（3）Calcium chloride solution is sprayed in soil after treatment；Then use
Tamping；After 30 days, spraying a small amount of permeability-reducing admixture on surface carries out reinforcement, and fountain height is the 0.2% of soil quality.
Objective for implementation is 5.7 × 10 in the leak factor being not used before this permeability-reducing admixture-5Cm/s, uses after permeability-reducing admixture 100
Average leak factor in it is 3.8 × 10-6 cm/s。
Embodiment 4
A kind of permeability-reducing admixture for carbonate containing soil, its effective ingredient is constituted and the mass percent of each component is：
Mass fraction is 12% sodium methyl silicate, the nonionic polyacrylamide that the molecular weight that mass fraction is 1% is 5000000
Amine, mass fraction are that 20% modulus is 2.8, Baume degrees is 45 ° of waterglass of Be, mass fraction is 2% alum, quality
Sodium sulphate, the sodium citrate that mass fraction is 1.5%, the hydroxymethyl cellulose that mass fraction is 1.5%, quality point that fraction is 8%
Number is 2% triisopropanolamine, the calcium chloride solution that mass fraction is 12%, the water that mass fraction is 40%.
The mass concentration of the calcium chloride solution is 42%.
Specific implementation pair as if thin solum calciferous, the permeability-reducing admixture for carbonate containing soil of the present embodiment
Construction method, specific implementation step is：
（1）Waterglass, alum, sodium sulphate, sodium citrate and carboxymethylcellulose calcium, triisopropanolamine are added successively by proportioning
Enter in water, stir, obtain final product antiseepage agent aid.Antiseepage agent aid can be preserved for a long time.
（2）Before construction, to sodium methyl silicate and non-ionic polyacrylamide is successively added in antiseepage agent aid, stirring is equal
It is even, obtain finished product permeability-reducing admixture.The requirement of finished product permeability-reducing admixture is used in 24 hours of configuration.
（3）Finished product permeability-reducing admixture is mixed with soil, form of construction work is directly stirring mixing：Shallow soil is taken out, is crushed, will
Finished product permeability-reducing admixture finished product is sufficiently mixed by churned mechanically mode with the shallow soil after crushing, and permeability-reducing admixture consumption is soil quality
7%, make thinner and dry 24 hours, fully reaction after carry out next step operation；
（4）Calcium chloride solution is taken according to proportioning, to through step（3）Calcium chloride solution is sprayed in soil after treatment；Then it is past to ooze
Drain region inserts reacted soil, is tamped using rammer compacter and is dried.It is few in the soil surface sprinkling of compacting after 12 days
Amount permeability-reducing admixture carries out reinforcement, and fountain height is the 0.15% of soil quality.
Objective for implementation is 7.8 × 10 in the leak factor being not used before this permeability-reducing admixture-5Cm/s, uses after permeability-reducing admixture 60
Average leak factor in it is 1.9 × 10-6 cm/s。
Claims (8)
1. a kind of permeability-reducing admixture for carbonate containing soil, it is characterised in that its effective ingredient constitute and each component quality hundred
Point ratio is：Mass fraction is 5%~15% alkali metal organosilicate, and mass fraction is 0.5%~1% nonionic polyacrylamide
Amine, mass fraction is 10%~25% waterglass, and mass fraction is 1%~3% alum, and mass fraction is 5%~10%
Sodium sulphate, mass fraction is 1%~3% sodium citrate, and mass fraction is 1%~5% hydroxymethyl cellulose or polyanion fibre
Dimension element, mass fraction is 1%~3% triisopropanolamine, and mass fraction is 10%~25% calcium chloride solution, and mass fraction is
40%~65% water, the percentage sum of above-mentioned raw materials is 100%.
2. the permeability-reducing admixture for carbonate containing soil according to claim 1, it is characterised in that the alkali metal organosilicon
Hydrochlorate, is the mixture in sodium methyl silicate, potassium methyl silicate or both.
3. the permeability-reducing admixture for carbonate containing soil according to claim 1 and 2, it is characterised in that the nonionic gathers
The molecular weight of acrylamide is 5000000~8000000.
4. the permeability-reducing admixture for carbonate containing soil according to claim 1 and 2, it is characterised in that the waterglass mould
Number is 2.2~2.8, and Baume degrees is 30~45 ° of Be.
5. the permeability-reducing admixture for carbonate containing soil according to claim 1 and 2, it is characterised in that the calcium chloride is molten
The mass concentration of liquid is 42%~50%.
6. the construction method of the permeability-reducing admixture for carbonate containing soil as described in one of claim 1-5, it is characterised in that tool
Body implementation steps are：
（1）By proportioning by waterglass, alum, sodium sulphate, sodium citrate and carboxymethylcellulose calcium or polyanion cellulose,
Triisopropanolamine is sequentially added in water, is stirred, and obtains final product antiseepage agent aid；
（2）Before construction, to alkali metal organosilicate and non-ionic polyacrylamide is successively added in antiseepage agent aid, stirring is equal
It is even, obtain finished product permeability-reducing admixture；
（3）Finished product permeability-reducing admixture is mixed with soil, the mode of mixing can be using sprinkling in situ or directly stirring；The spray in situ
Spill finger using spraying by the way of, disposably or the surface that permeability-reducing admixture is sprayed onto soil is repeated several times, after 1~7 day, carry out
Next step is operated；The mode of the direct stirring refers to taking-up soil, after crushing, finished product permeability-reducing admixture and soil particle is passed through into machine
Tool is stirred or the artificial mode for stirring mixing, is well mixed, drying 10~36 hours of making thinner, and fully carries out next step after reaction
Operation；In this step, finished product permeability-reducing admixture is 1%~15%: 1 with the mass ratio of soil；
（4）Calcium chloride solution is taken according to proportioning, to through step（3）Calcium chloride solution is sprayed in soil after treatment；Then by soil
Earth is inserted in the region for needing antiseepage, and compacting is rolled using weight or rammer compacter, after after 7~35 days, then is sprayed on surface
Savoring permeability-reducing admixture carries out reinforcement, and fountain height is the 0.01%~1% of soil quality.
7. the construction method of the permeability-reducing admixture for carbonate containing soil according to claim 6, it is characterised in that step
（3）In, finished product permeability-reducing admixture is 5%~10%: 1 with the mass ratio of soil.
8. the construction method of the permeability-reducing admixture for carbonate containing soil according to claim 6 or 7, it is characterised in that step
Suddenly（4）In, the fountain height of permeability-reducing admixture is the 0.05%~0.5% of soil quality.
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| CN110092567A (en) * | 2019-04-11 | 2019-08-06 | 湖南锦佳环保科技有限公司 | A kind of shield soil processing method |
| CN110387243A (en) * | 2019-07-26 | 2019-10-29 | 河南省明创环境科技有限公司 | A kind of medicament and method for repairing water-bearing layer heavy-metal contaminated soil |
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