CN102060480B - Composite curing agent for dredged silt in watercourse - Google Patents
Composite curing agent for dredged silt in watercourse Download PDFInfo
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- CN102060480B CN102060480B CN201010535487A CN201010535487A CN102060480B CN 102060480 B CN102060480 B CN 102060480B CN 201010535487 A CN201010535487 A CN 201010535487A CN 201010535487 A CN201010535487 A CN 201010535487A CN 102060480 B CN102060480 B CN 102060480B
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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
- C04B28/18—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 mixtures of the silica-lime type
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0436—Dredged harbour or river sludge
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a composite curing agent for dredged silt in a watercourse, comprising a powdered agent and a liquid agent, wherein the powdered agent consists of the following components on the basis of 100 percent of the total mass fraction: 15-25 percent of cement, 45-65 percent of pozzolanic material, 10-20 percent of alkali activator and 5-10 percent of salt activator; and the liquid agent consists of the following components on the basis of 100 percent of the total mass fraction: 2-7 percent of polyvinyl alcohol, 2-7 percent of polyacrylamide, 0.5-1 percent of melamine sulfonate formaldehyde condensate and the balance of water. The dredged silt has high compressive strength after being solidified by the composite curing agent for the watercourse silt, and can meet the requirements of road construction.
Description
Technical field:
The invention belongs to municipal administration and field of environment engineering, be specifically related to a kind of training of channel mud composite curing agent.
Background technology:
China south of the River and developed area, south China city river are numerous, all carry out extensive dredging, desilting engineering every year, produce a large amount of mud.Like the dredging engineering of Fen, city, Foshan in 2009 rivers, total desilting amount reaches 83 ten thousand steres; The urban waterway environmental renovation engineering of carrying out before the Asian Games of Guangzhou for another example, the desilting amount surpasses 500 ten thousand steres.The method of disposal of dredging silt mainly is to throw sea and landfill at present.Throw the sea and can produce secondary pollution; The soil that landfill forms is soft, is difficult to development and use, causes the land resources waste, and in addition, dredging silt contains heavy metal contaminants mostly in various degree, and landfill also must cause secondary pollution.Under the situation more and more nervous in land resources, that environmental requirement is more and more stronger, the dredging silt recycling is an inexorable trend.Research and develop cost-effective dredging silt and handle and application technology as the second resource, have huge potential application demand.At present, the resource utilization method of dredging silt mainly includes physical method, heat treating method and chemical process, but from economy and point of view of practicability, adopting chemosetting to handle is method applied widely, lower-cost.
The character of mud is similar to soil, in the exploitation of sludge solidification technical study both at home and abroad at present, mainly uses for reference traditional soil solidification technology.The solidify material of at present having researched and developed mainly contains: (1) lime, cement class solidifying agent: the mechanism of lime, flyash and cement solidification mud is similar; Comprise the moisture that combines in the mud, form the gelling glued mud that becomes to assign to; Stop up the capillary structure of mud, thereby form intensity and stability.Shortcoming is that the solidifying agent add-on is bigger, forms the agglomerative process and can produce bigger deformation, and the easy drying shrinkage of curing sludge forms the crack, destroys structure, influences water stability; (2) slag silicate salt solidifying agent: this type solidifying agent staple is activated silica oxide compound, al oxide etc.It utilizes the activity excitation composition to promote solidifying agent aquation and the gum material that produces glued sludge granules.What this type solidifying agent adopted is hydraulicity composition, so water resistance is better, shortcoming is that incorporation is bigger.(3) superpolymer class solidifying agent: traditional superpolymer aspects such as mainly comprising soil conservation, soil moisturizing, loose soil property of improving the soil; On this basis; Discover and utilize crosslinked polymer to form three-dimensional arrangement parcel and glued grogs; On the basis of soil compression, can obtain ultimate compression strength preferably.The incorporation of this type solidifying agent is less, and convenient transportation generally adopts the form of the aqueous solution to mix with mud; Easy construction; And solidified earth early strength and later stage strength of stability all can meet the demands, but this type solidifying agent water repelling property is poor, meet water intensity and sharply descend.(4) electron ion solution class solidifying agent: this type solidifying agent mechanism of action is to utilize strong ion to destroy the double electrical layers on sludge granules surface; Weaken the chemical action power of muck surface and water; And fundamentally change the surface properties of sludge granules; Make it be tending towards hydrophobic nature, make mud form intensity and good water repelling property under pressure.
Dredging silt and general soil are different, and outstanding behaviours is higher in organic content, water ratio is higher, and it is undesirable or the solidifying agent addition is excessive uneconomical to be used for traditional solidify material usually conduct effect when handling dredging silt of soil treating.Therefore exploitation be suitable for the dredging silt characteristic, cost-effective sludge solidification material has realistic price.
Summary of the invention:
The objective of the invention is to overcome deficiency of the prior art, a kind of applied widely, solidification effect good, cost is low training of channel mud composite curing agent is provided.
Training of channel mud composite curing agent of the present invention comprises pulvis and liquor:
Described pulvis, by total mass mark 100%, form by following component:
Cement 15%～25%, pozzolanic materials 45%～65%, bases exciting agent 10%～20% and salt exciting agent 5%～10%;
Described liquor, by total mass mark 100%, form by following component:
Z 150PH 2%～7%, SEPIGEL 305 2%～7%, condensate of melamine sulfonate and formaldehyde 0.5%～1%, surplus are water.
Described liquor, preferred, by total mass mark 100%, form by Z 150PH 5.5%, SEPIGEL 305 4%, condensate of melamine sulfonate and formaldehyde 0.5%, water 90%.
Described cement is preferably ordinary portland cement clinker.
Described pozzolanic materials is meant active silica, the activated alumina isoreactivity component that contains some amount, ability and calcium hydroxide reaction, the material of reaction product such as generation hydrated calcium silicate, drated calcium aluminate or aquation calcium sulphoaluminate; Be preferably a kind of in blast-furnace slag, bessemer furnace slag and the flyash or several; With these waste material slags is main raw material, has both practiced thrift starting material, has solved waste discharge and problem of environmental pollution again; The treatment of wastes with processes of wastes against one another, significant to environment protection.
Described bases exciting agent is preferably a kind of in white lime, sodium hydroxide and the Pottasium Hydroxide or several.
Described salt exciting agent is preferably a kind of in calcium sulfate, sodium sulfate, yellow soda ash and the salt of wormwood or several.
Cement of the present invention, pozzolanic materials, bases exciting agent, salt exciting agent, Z 150PH, SEPIGEL 305, condensate of melamine sulfonate and formaldehyde all belong to material known in the state of the art, can from prior art, get access to.
The collocation method of training of channel mud composite curing agent of the present invention is following:
Pulvis: with the cement in the pulvis, pozzolanic materials, bases exciting agent and salt exciting agent according to its proportioning content mixing abrasive dust to Blain specific surface 400～600m
2/ kg gets final product; Also can be with the cement in the pulvis, pozzolanic materials, bases exciting agent and salt exciting agent difference abrasive dust to Blain specific surface 400～600m
2/ kg mixes according to its proportioning content then;
Liquor: with Z 150PH, SEPIGEL 305 and the condensate of melamine sulfonate and formaldehyde of liquor, according to its proportioning content, add in the water of liquor content, dissolving evenly gets final product fully; Also can earlier Z 150PH, SEPIGEL 305 and condensate of melamine sulfonate and formaldehyde elder generation water be dissolved respectively, mix according to the content proportioning again.
The method of use of training of channel mud composite curing agent of the present invention is following: in actual sludge solidification practical applications; Difference according to mud character; The addition of pulvis is generally 5%～15% of mud total mass; The addition of liquor is generally 1%～3% of mud total mass, and the compositely proportional mass range of pulvis and liquor is 5～15: 1.Those skilled in the art can add according to concrete practical situation.After adding pulvis and liquor, stir, compacting.
Training of channel mud composite curing agent of the present invention has combined multiple traditional soil-solidified-agent advantage separately, through proper proportion various effective constituents is combined, and has given full play to the characteristic and the synergy of each component.Cement clinker is because its hydration rate is fast, and the gelling composition of formation stops up the capillary structure of mud, forms a structural framing in early days, and whole system is played a supporting role, and the system that makes has certain early strength and stability; Slag, slag and flyash have been given full play to the aquation and the volcanical ash effect of volcano grey matter gelling material, have generated a large amount of hydrated calcium silicates, drated calcium aluminate etc., make the intensity of curing sludge to improve significantly; The bases exciting agent has excited the activity of volcano grey matter gelling material and the activity of mud itself, makes pozzolanic reaction successfully to carry out, thus the growth that the intensity of curing sludge can be continued in a long time; The salt exciting agent can generate highly basic and soluble salt with bases exciting agent reaction, and highly basic can improve the pH value of liquid phase, the dissolving of material such as sial in the quickening slag; Quicken the pozzolanic reaction process; Improve the content of resultant of reaction, the soluble salt that generates in addition can generate trithiophenol salt type aquation calcium sulphoaluminate (ettringite) with the reaction of pozzolanic reaction product calcium aluminate, fills the solidified earth internal void; Increase the degree of compactness of solidified earth, thereby improve the intensity of solidified earth; Z 150PH and SEPIGEL 305 have good cohesive action, to improving curing sludge early strength and later strength apparent in view effect are arranged all; Condensate of melamine sulfonate and formaldehyde can make gelling material such as cement, slag micropowder meet the cotton-shaped fast fragmentation that is condensed into behind the water, and curing system is played dissemination.Dredging silt is after riverway sludge composite curing agent of the present invention solidifies, and its ultimate compression strength is high, can reach the requirement of building the road.
Embodiment:
Below be to further specify to of the present invention, rather than limitation of the present invention.
One, the preparation of training of channel mud composite curing agent.
Embodiment 1
No. 425 ordinary portland cements, blast-furnace slag, bessemer furnace slag, white lime and calcium sulfate are distinguished abrasive dusts to Blain specific surface 400～600m
2/ kg is by weight ratio: No. 425 ordinary portland cement 15 weight parts, blast-furnace slag 45 weight parts, bessemer furnace slag 20 weight parts, white lime 10 weight parts and calcium sulfate 10 weight parts.Above-mentioned substance is mixed, get final product the pulvis of training of channel mud composite curing agent of present embodiment.
With Z 150PH, SEPIGEL 305 and condensate of melamine sulfonate and formaldehyde respectively water to be dissolved as solid content be 10% solution, be by weight ratio then: polyacrylamide solution 30 weight parts, polyvinyl alcohol solution 60 weight parts, condensate of melamine sulfonate and formaldehyde solution 10 weight parts.Above-mentioned substance is mixed, get final product the liquor of training of channel mud composite curing agent of present embodiment.By total mass mark 100%, contain SEPIGEL 305 3%, Z 150PH 6% and condensate of melamine sulfonate and formaldehyde 1% in this liquor, water is 90%.
Embodiment 2
No. 425 ordinary portland cements, blast-furnace slag, bessemer furnace slag, white lime and yellow soda ash are distinguished abrasive dusts to Blain specific surface 400～600m
2/ kg is by weight ratio: No. 425 ordinary portland cement 25 weight parts, blast-furnace slag 25 weight parts, bessemer furnace slag 20 weight parts, white lime 20 weight parts and yellow soda ash 10 weight parts.Above-mentioned substance is mixed, get final product the pulvis of training of channel mud composite curing agent of present embodiment.
With Z 150PH, SEPIGEL 305 and condensate of melamine sulfonate and formaldehyde respectively water to be dissolved as solid content be 10% solution, be by weight ratio then: polyacrylamide solution 60 weight parts, polyvinyl alcohol solution 30 weight parts, condensate of melamine sulfonate and formaldehyde solution 10 weight parts.Above-mentioned substance is mixed, get final product the liquor of training of channel mud composite curing agent of present embodiment.By total mass mark 100%, contain SEPIGEL 305 6%, Z 150PH 3% and condensate of melamine sulfonate and formaldehyde 1% in this liquor, water is 90%.
Embodiment 3
No. 425 ordinary portland cements, blast-furnace slag, bessemer furnace slag, white lime and sodium sulfate are distinguished abrasive dusts to Blain specific surface 400～600m
2/ kg is by weight ratio: No. 425 ordinary portland cement 20 weight parts, blast-furnace slag 30 weight parts, bessemer furnace slag 30 weight parts, white lime 15 weight parts and sodium sulfate 5 weight parts.Above-mentioned substance is mixed, get final product the pulvis of training of channel mud composite curing agent of present embodiment.
With Z 150PH, SEPIGEL 305 and condensate of melamine sulfonate and formaldehyde respectively water to be dissolved as solid content be 10% solution, be by weight ratio then: polyacrylamide solution 40 weight parts, polyvinyl alcohol solution 55 weight parts, condensate of melamine sulfonate and formaldehyde solution 5 weight parts.Above-mentioned substance is mixed, get final product the liquor of training of channel mud composite curing agent of present embodiment.By total mass mark 100%, contain SEPIGEL 305 4%, Z 150PH 5.5% and condensate of melamine sulfonate and formaldehyde 0.5% in this liquor, water 90%.
Embodiment 4
No. 425 ordinary portland cements, blast-furnace slag, bessemer furnace slag, sodium hydroxide and calcium sulfate are distinguished abrasive dusts to Blain specific surface 400～600m
2/ kg is by weight ratio: No. 425 ordinary portland cement 20 weight parts, blast-furnace slag 50 weight parts, bessemer furnace slag 15 weight parts, sodium hydroxide 10 weight parts and calcium sulfate 5 weight parts.Above-mentioned substance is mixed, get final product the pulvis of training of channel mud composite curing agent of present embodiment.
With Z 150PH, SEPIGEL 305 and condensate of melamine sulfonate and formaldehyde respectively water to be dissolved as solid content be 10% solution, be by weight ratio then: polyacrylamide solution 40 weight parts, polyvinyl alcohol solution 55 weight parts, condensate of melamine sulfonate and formaldehyde solution 5 weight parts.Above-mentioned substance is mixed, get final product the liquor of training of channel mud composite curing agent of present embodiment.By total mass mark 100%, contain SEPIGEL 305 4%, Z 150PH 5.5% and condensate of melamine sulfonate and formaldehyde 0.5% in this liquor, water 90%.
Embodiment 5
No. 425 ordinary portland cements, blast-furnace slag, bessemer furnace slag, white lime and sodium sulphates are distinguished abrasive dusts to Blain specific surface 400～600m
2/ kg is by weight ratio: No. 425 ordinary portland cement 20 weight parts, blast-furnace slag 10 weight parts, bessemer furnace slag 50 weight parts, white lime 15 weight parts and sodium sulfate 5 weight parts.Above-mentioned substance is mixed, get final product the pulvis of training of channel mud composite curing agent of present embodiment.
With Z 150PH, SEPIGEL 305 and condensate of melamine sulfonate and formaldehyde respectively water to be dissolved as solid content be 10% solution, be by weight ratio then: polyacrylamide solution 40 weight parts, polyvinyl alcohol solution 55 weight parts, condensate of melamine sulfonate and formaldehyde solution 5 weight parts.Above-mentioned substance is mixed, get final product the liquor of training of channel mud composite curing agent of present embodiment.By total mass mark 100%, contain SEPIGEL 305 4%, Z 150PH 5.5% and condensate of melamine sulfonate and formaldehyde 0.5% in this liquor, water is 90%.
Embodiment 6
No. 425 ordinary portland cements, blast-furnace slag, flyash, sodium hydroxide and calcium sulfate are distinguished abrasive dusts to Blain specific surface 400～600m
2/ kg is by weight ratio: No. 425 ordinary portland cement 20 weight parts, blast-furnace slag 15 weight parts, flyash 50 weight parts, sodium hydroxide 10 weight parts and calcium sulfate 5 weight parts.Above-mentioned substance is mixed, get final product the pulvis of training of channel mud composite curing agent of present embodiment.
With Z 150PH, SEPIGEL 305 and condensate of melamine sulfonate and formaldehyde respectively water to be dissolved as solid content be 10% solution, be by weight ratio then: polyacrylamide solution 40 weight parts, polyvinyl alcohol solution 55 weight parts, condensate of melamine sulfonate and formaldehyde solution 5 weight parts.Above-mentioned substance is mixed, get final product the liquor of training of channel mud composite curing agent of present embodiment.By total mass mark 100%, contain SEPIGEL 305 4%, Z 150PH 5.5% and condensate of melamine sulfonate and formaldehyde 0.5% in this liquor, water is 90%.
Two, the measure of merit of training of channel mud composite curing agent.
Implement in the test, select for use rivers desilting mud in Fen, Foshan city as test mud.Through artificial dehydration, water ratio is about 30% to this mud, and organic content is about 13% (butt), and chemical ingredients is seen table 1
Table 1 mud chemical ingredients
| Composition | SiO 2 | Al 2O 3 | CaO | Fe 2O 3 | K 2O | MgO | Na 2O | P 2O 5 | TiO 2 |
| Content | 53.65 | 17.47 | 3.22 | 7.20 | 2.22 | 1.19 | 0.49 | 0.68 | 0.97 |
Implement in the test, utilize the training of channel mud composite curing agent of embodiment 1～6 preparation that mud is cured processing, and do solidifying agent and cement with single pulvis simultaneously and make solidifying agent and do simultaneous test, its addition is 8% of a mud total mass.The hardener formula of embodiment and control group prescription (contrast A1～A6, SN1～2) are seen table 2.Add training of channel mud composite curing agent in mud, wherein the amount of pulvis is 8% of a mud total mass, and the amount of liquor is 1% of a mud total mass.Add stir behind the solidifying agent, compacting.
The experimental test index is a unconfined compression strength.Test specimen is Φ 5cm * 5cm right cylinder, static(al) compaction moulding under the optimum moisture content condition, and compactness is 95%; 25 ℃ ± 2 ℃ and humidity greater than 90% condition under normal curing, curing time was respectively 7 days, 28 days, 60 days, the last day of preserving period, test specimen was immersed in the water.Test result is seen table 3.
Table 2 embodiment hardener formula and control group prescription
Table 3 unconfined compression strength test result (MPa)
| Numbering | 7 days | 28 days | 60 days |
| Embodiment 1 | 2.12 | 3.25 | 4.62 |
| Embodiment 2 | 2.57 | 3.32 | 4.21 |
| Embodiment 3 | 2.41 | 3.47 | 4.54 |
| Embodiment 4 | 2.21 | 3.61 | 4.31 |
| Embodiment 5 | 2.38 | 3.32 | 4.68 |
| Embodiment 6 | 2.16 | 3.11 | 4.14 |
| Contrast A1 | 1.52 | 2.33 | 3.59 |
| Contrast A2 | 1.83 | 2.57 | 3.21 |
| Contrast A3 | 1.73 | 2.58 | 3.39 |
| Contrast A4 | 1.45 | 2.39 | 3.51 |
| Contrast A5 | 1.62 | 2.92 | 3.64 |
| Contrast A6 | 1.39 | 2.41 | 3.37 |
| Cement SN1 | 1.26 | 1.79 | 2.14 |
| Cement SN2 | 1.31 | 1.83 | 2.21 |
Can draw to draw a conclusion by table 3:
1. under the identical situation of solidifying agent adding proportion, the curing sludge unconfined compression strength of admixture cement is lower separately, and along with the growth in the length of time, the amplification of ultimate compression strength is less;
2. when single pulvis was made solidifying agent, the unconfined compression strength of curing sludge obviously improved, wherein with add blast-furnace slag, the bessemer furnace slag effect is comparatively remarkable.
3. when liquor and pulvis is compound when making solidifying agent, the unconfined compression strength of curing sludge is maximum.
Therefore adopt the pulvis and the solidifying agent of liquor as training of channel mud of training of channel mud composite curing agent of the present invention, curing has excellent results to dredging silt.After solidifying, the unconfined compression strength of curing sludge can satisfy the requirement of building the road.
Claims (6)
1. a training of channel mud composite curing agent is characterized in that, comprises pulvis and liquor:
Described pulvis, by total mass mark 100%, form by following component:
Cement 15%～25%, pozzolanic materials 45%～65%, bases exciting agent 10%～20% and salt exciting agent 5%～10%;
Described liquor, by total mass mark 100%, form by following component:
Z 150PH 2%～7%, SEPIGEL 305 2%～7%, condensate of melamine sulfonate and formaldehyde 0.5%～1%, surplus are water;
The compositely proportional mass range of described pulvis and liquor is 5～15: 1.
2. training of channel mud composite curing agent according to claim 1; It is characterized in that; Described liquor by total mass mark 100%, is made up of Z 150PH 5.5%, SEPIGEL 305 4%, condensate of melamine sulfonate and formaldehyde 0.5%, water 90%.
3. training of channel mud composite curing agent according to claim 1 and 2 is characterized in that described cement is ordinary portland cement clinker.
4. training of channel mud composite curing agent according to claim 1 and 2 is characterized in that, described pozzolanic materials is a kind of in blast-furnace slag, bessemer furnace slag and the flyash or several.
5. training of channel mud composite curing agent according to claim 1 and 2 is characterized in that, described bases exciting agent is a kind of in white lime, sodium hydroxide and the Pottasium Hydroxide or several.
6. training of channel mud composite curing agent according to claim 1 and 2 is characterized in that, described salt exciting agent is a kind of in calcium sulfate, sodium sulfate, yellow soda ash and the salt of wormwood or several.
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|---|---|---|---|---|
| JP3786899B2 (en) * | 2002-06-05 | 2006-06-14 | 株式会社ミクニ | Mud reforming solidification stabilizer |
| CN101029233A (en) * | 2007-04-20 | 2007-09-05 | 大庆油田有限责任公司 | Silt and sand curing agent |
| CN101081718A (en) * | 2006-05-31 | 2007-12-05 | 北京中永基固化剂科技发展有限公司 | Sludge curing agent and application thereof |
| CN101638311A (en) * | 2009-07-10 | 2010-02-03 | 北京古华建业淤泥固化科技有限公司 | Slit and sludge curing agent |
| CN101684038A (en) * | 2008-09-28 | 2010-03-31 | 要明伦 | Curing agent and construction method of weak soil |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3786899B2 (en) * | 2002-06-05 | 2006-06-14 | 株式会社ミクニ | Mud reforming solidification stabilizer |
| CN101081718A (en) * | 2006-05-31 | 2007-12-05 | 北京中永基固化剂科技发展有限公司 | Sludge curing agent and application thereof |
| CN101029233A (en) * | 2007-04-20 | 2007-09-05 | 大庆油田有限责任公司 | Silt and sand curing agent |
| CN101684038A (en) * | 2008-09-28 | 2010-03-31 | 要明伦 | Curing agent and construction method of weak soil |
| CN101638311A (en) * | 2009-07-10 | 2010-02-03 | 北京古华建业淤泥固化科技有限公司 | Slit and sludge curing agent |
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| CN102060480A (en) | 2011-05-18 |
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