CN1108719A - Agent for injection of base - Google Patents
Agent for injection of base Download PDFInfo
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- CN1108719A CN1108719A CN94119305A CN94119305A CN1108719A CN 1108719 A CN1108719 A CN 1108719A CN 94119305 A CN94119305 A CN 94119305A CN 94119305 A CN94119305 A CN 94119305A CN 1108719 A CN1108719 A CN 1108719A
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- water glass
- injection
- slag
- agent
- cement
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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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/12—Water-soluble silicates, e.g. waterglass
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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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/06—Calcium compounds, e.g. lime
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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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/10—Cements, e.g. Portland cement
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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
- C09K2103/00—Civil engineering use
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- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A grouting liquid for injection into a ground, containing specified water glass and fine grain slag. It obtains the consolidated grout having high strength, and is easily adjusted to a long gelation time. Moreover, it keeps low viscosity until it starts the gelation, and thus, is excellent in penetrative property, and accordingly, is especially suitable for the injection to a permeable ground. The grouting liquid comprises a water glass having mol ratio of 1.5 to 2.8, and a fine grain slag having an average particle size of 10 mu m or less and a specific surface area of 5000cm<2>/g or more, preferably 8000cm<2>/g. It can comprises, if necessary, cement and/or limes, and moreover, an agent for controlling the amount of dissolved calcium.
Description
The present invention relates to be particularly suitable for the agent for injection of base that pervious foundation such as sand soil injects usefulness, the present invention is when obtaining the high strength induration, in very wide scope, adjust gelation time easily, particularly long gelation time, and owing to finish until whole gelation process and all to keep hanging down viscosity, thereby impregnability is also very good.
In the past, as keeping low viscosity in the inorganic system of seeking in sand soil, to soak into and having injection reagent, be difficult to adjustment in general than the long gel time.Yet under the management of strictness, also might carry out this adjustment, but the deterioration of consolidation strength is difficult to avoid.That is to say,, may expect that hardly this two aspect of impregnability and intensity improves simultaneously with the injection reagent of inorganic system.
Different therewith, the injection reagent of organic system can expect that impregnability and intensity can both improve, yet in general, not only price is very expensive for this, and need carry out the problems such as inspection of COD in addition when execution control.
Therefore, although the object of the present invention is to provide a kind of is the reagent of inorganic system, but also has the gelation time in the wide scope, Chang gelation time particularly, and finish until whole gelation process and can both keep low viscosity thereby impregnability good, and consolidation strength also improves, and overcomes the agent for injection of base of the shortcoming that exists in the above-mentioned prior art with activation.
In order to achieve the above object, feature of the present invention is, it contains mol ratio as active ingredient is that the water glass and the average grain diameter of 1.5-2.8 scope is that 10 μ m are following, specific area is 500cm
2The particulate slag that/g is above also can contain cement and/or lime class as required, perhaps also further contains the calcium stripping quantity and adjusts agent.
Below concrete in detail the present invention is described in detail.
As water glass used among the present invention, can be that mol ratio is lower than JIS3 water glass, its mol ratio is in the 1.5-2.8 scope.The use amount of this water glass in whole reagent, is converted into the SiO in the water glass
2, be the amount of 1.5-20 weight %.
As bits, be that average grain diameter is that 10 μ m are following, specific area is 5000cm
2More than/the g, preferred 8000cm
2The particulate that/g is above.
The present invention contains above-mentioned water glass, the particulate slag as active ingredient, thereby can carry out gelation in a long time, and finishes until whole gelation process and all to keep low viscosity, does not also produce sedimentation, thereby can obtain homogeneous and strong induration.
And the present invention also adds mixed cement and/or lime class in above-mentioned water glass-slag system, particularly is respectively that specific area is 5000cm
2More than/the g, preferred 8000cm
2More than/the g, average grain diameter is following particulate cement and lime classes of 10 μ m, also further adds the calcium mixture stripping quantity and adjusts agent, thereby also can seek gelation time, the adjustment of impregnability or consolidation strength.
Adjust agent as the calcium stripping quantity, can exemplify sodium acid carbonate, sodium carbonate, sodium hydrogen phosphate, calgon, and their sylvite also is fine certainly, can exemplify pyrophosphate, acid pyrophosphate, tripolyphosphate, four Quadrafos, acidic metaphosphate etc. are as the condensed phosphate of metal ion sealer and edetate, nitrotrimethylolmethane acetate, citrate, metal ion sealer and sodium phosphates such as tartrate, the phosphoric acid salt that dibastic sodium phosphate etc. are common etc.Wherein, preferred especially bicarbonate, carbonate contains the phosphatic solubility alkaline agent of condensed phosphoric acid.
And the present invention also can and use in order to adjust any reactant of gelation time, and these reactants can be listed below.
The ester class:
The fatty acid ester of the 1 valency alcohol of ethyl acetate, methyl acetate, butyl acetate, pentyl acetate and so on, ethylene acetate, glycerol triacetate, the molecule lactone (cyclic ester: lactone) of the fatty acid ester of the polyalcohol of succinic diester and so on (full ester), δ-butyrolactone, 6-caprolactone and so on.Hexylene glycol one formic acid esters, ethylene monoacetate, ethylene glycol one propionic ester, monoformin, monoacetin, glycerin monopropionate, glycerin diformate, glycerin diacetate, D-sorbite one formic acid esters, D-sorbite monoacetate, the polyol moiety ester of glycolic one acetate alcohol, the partly-hydrolysed vinyl acetate of low polymerization degree etc. and so on.The unsaturated fatty acid ester of diacetyl oxygen ethene and so on.
Ethylene carbonate, propylene carbonate, the carbonic ester of cyclic carbonates such as glycerol carbonate and so on.
Aldehydes:
Twain-aldehyde compounds such as glyoxal, succinaldehyde, MDA, butanedial, glutaraldehyde, chaff dialdehyde.
Amide-type:
Formamide, dimethyl formamide, acetamide, dimethylacetylamide, propionamide, butyramide, acrylamide, malonamide, pyridine alkane ketone, caprolactam etc.
Alcohols:
Ethanol, methyl alcohol, amylalcohol, glycerine, polyvinyl alcohol etc., 1 yuan and polyalcohol, or synthetic high polymer alcohol.
Acids:
Inorganic acids such as sulfuric acid, hydrochloric acid, phosphoric acid.Organic acids such as formic acid, acetate, propionic acid, butanedioic acid, maleic acid, tartaric acid.
Inorganic salts:
Chlorides such as calcium chloride, sodium chloride, magnesium chloride, potassium chloride, aluminium chloride; Sulfate such as calcium sulfate, sodium sulphate, aluminum sulfate; Aluminate such as sodium aluminate, potassium aluminate; Hydrochlorides such as ammonium chloride, zinc chloride, aluminium chloride; Sodium chlorate, potassium chlorate, sodium perchlorate, the chlorate of potassium perchlorate etc.; The carbonate of sodium carbonate, potash, ammonium carbonate, sodium acid carbonate, saleratus, carbonic hydroammonium etc.; Disulfates such as niter cake, potassium acid sulfate, ammonium hydrogen sulfate; Bisulfites such as sodium hydrogensulfite, potassium bisulfite, ammonium bisulfite; Fluosilicate such as prodan, potassium fluosilicate; Silicate such as the alkali salt of silicic acid, aluminium salt; Borates such as Boratex, potassium borate, ammonium borate; Hydrophosphates such as dibastic sodium phosphate, potassium hydrogen phosphate, ammonium hydrogen phosphate; Pyrosulfates such as sodium pyrosulfate, potassium pyrosulfate, ammonium pyrosulfate; Pyrophosphates such as sodium pyrophosphate, potassium pyrophosphate, ammonium pyrophosphate; Bichromates such as sodium dichromate, potassium bichromate, ammonium dichromate; Permanganate such as potassinm permanganate, sodium permanganate etc.
Organic salt:
Sodium acetate, sodium succinate, potassium formate, sodium formate, natrium citricum etc.
Metal oxides such as quicklime, alumina, iron oxide, magnesia; The salt of Ca, Al, Mg.
In addition, the present invention also can and use gelating agent arbitrarily except acidic silicic acid aqueous solution isogel accelerator.
Also can and coagulate hard agent class, also can cooperate the agent for injection of base that produces various characteristics with flying dust, siliceous sinter, kieselguhr, carclazyte class etc.And, also often can obtain the induration of homogeneous in order to prevent sedimentation with the dispensed in small quantity agent.
When reagent is used in the injection of injection the invention described above, for example, can carry out by the following method, promptly make gelation time and transfer long reagent liquid of the present invention, it is directly injected ground, or, injecting cement in advance in ground is injection material, injects mentioned reagent in this injection place then.
In addition, this water glass fluid,matching among the present invention is defined as A liquid, the fluid,matching that will contain this particulate slag among the present invention is defined as B liquid, back, two kinds of liquid interflow of this A, B can be injected, can also be to contain above-mentioned water glass and slag, or the fluid,matching that also contains calcium stripping quantity adjustment agent is defined as A liquid, gelation accelerator or other any gel are defined as B liquid, this A, back, B two liquid interflow are injected, with the gelation time of any adjustment reagent.
Can also be, prepare double ascending pipe, transfer long reagent of the present invention to be defined as A liquid gelation time, gelation accelerator fluid,matching is defined as B liquid, at first, A, B two liquid are sent into ground by the pipeline separately of above-mentioned double ascending pipe, two liquid interflow is consequently become the short mortar of gelation time at its fore-end, its injection is formed charges around the space around the ascending pipe, and then only inject A liquid.
Can also be, with this water glass fluid,matching among the present invention, or contain above-mentioned water glass or also contain the calcium stripping quantity and adjust the fluid,matching of agent and be defined as A liquid, gelation accelerator fluid,matching (slow setting reactant fluid,matching or the reactant fluid,matching for the gelation slow setting is prepared) is defined as B liquid, to wink be defined as C liquid with fluid,matching with fixed attention, at first, A, C interflow liquid is injected, switch to the injection of A, B interflow liquid then, carry out above-mentioned steps repeatedly so that its injection while inject.
Can also be, to contain water glass and slag (also can contain the calcium stripping quantity as required and adjust agent) and be defined as A liquid, gelation accelerator is defined as B liquid, will by AB collaborate that liquid forms wink coagulating property mortar from the top discharge opening of double pipe, the slow setting mortar that to be made up of A liquid injects ground separately simultaneously by the bottom discharge opening.
Can also be, in above-mentioned water glass, add slag, also can add the calcium stripping quantity as required and adjust agent, the reagent (also can be the reagent that does not reach gelation) that can make gelation time prolong a few hours is defined as A liquid, the fluid,matching that will contain slag or also contain other reactant is defined as B liquid, during construction B liquid is added in the A liquid to make the reagent of the present invention with regulation gelation time and intensity, again with its injection ground.
Can also be, mol ratio is higher than 2.8 No. 3 water glass fluid,matchings and is defined as A liquid, with mol ratio is that the water glass fluid,matching of the present invention of 1.5-2.8 scope is defined as B liquid, to wink be defined as C liquid with the reactant fluid,matching with fixed attention, this particulate slag fluid,matching among the present invention is defined as D liquid, after AC being collaborated wink the coagulating property mortar injection ground of liquid composition, again BD is collaborated the slow setting reagent injection of the present invention that liquid is formed, thereby carry out compound injection.
As main material, it is known with the reagent that prolongs gelation time that the water glass of low mol ratio is acted on it with cement.But this reagent can make gelation time prolong at most also had only several minutes about-10 minutes.Its reason is, contain in the cement more can with the SiO in the water glass
2Responsive CaO, the SiO of it and water glass
2Quick response consequently makes gelation time accelerate.And the CaO of this reagent consumption cement, thereby can not keep the original intensity of cement.
Different therewith, in the used slag of the present invention, as with water glass in SiO
2The responsive CaO content of composition is than much less in the cement, thereby the SiO of very difficult and water glass
2React.
And the alkali in the water glass divides the potential hydraulic characteristic that stimulates slag, so that calcium dissociates out from slag.The SiO of this calcium ion and water glass
2In reaction time, is also with the SiO of slag
2Reaction needs long gelation time so that slowly fixed, thereby forms calcium silicates, and obtains the big fixed thing of consolidation strength.
If in above-mentioned water glass-slag system, further add cement, cement itself self-hardening property and promoted the reaction of water glass-slag system with the silica composition reaction of water glass.Therefore, be accompanied by the shortening of the gelation time of this system, viscosity to a certain degree increases, and intensity increases thereupon.
The lime class is difficult to water-soluble, but its dissolubility increases in the presence of water glass.If this lime class is added in above-mentioned water glass-slag system, then can promote the reaction of this system, have the effect same with cement.
Alkali in the above function influence water glass.Therefore, the mol ratio of the water glass among the present invention is suitable in about 1.5-2.8 scope.And the concentration of water glass is considered from consolidation strength and viscosity aspect, in whole reagent, as SiO
2Composition, with about 1.5-20% for suitable.
And the slag that uses among the present invention, cement and lime class work to each self-adjusting of gelation, viscosity and the consolidation strength of water glass, influenced by these particle size, and be that specific area is at 5000cm below the 10 μ m according to average grain diameter
2More than/the g, preferred 8000cm
2The condition that/g is above as stimulant, combines medium and small silica composition of silica composition big in the slag and water glass and calcium with the alkali composition of suitable quantity of water glass, just formed the gelation of the big strong compound silico-calcium of density.
In other words, result from the granule silica of water glass resulting to be filled with in the big grain network of silica space of slag, calcium gets up them and fixed continuously, thereby forms closely knit hardening thing.
Adjust agent if also add the calcium stripping quantity in the system of the present invention, for example add carbonate, bicarbonate, phosphate, then generate the calcium carbonate and the calcium phosphate of inertia, but so that delay gelating.
In above-mentioned, if the mol ratio of water glass is lower than 1.5, then the alkali composition is too much, so that can not gelation, perhaps extend to unpractical degree so that fixed insufficient as its gelation time of injection material, and the viscosity increase, the state that increases with viscosity is difficult to carry out clear and definite gelation.And from the public hazards viewpoint, too much alkali composition is easy to cause groundwater pollution.
If the mol ratio of water glass is at No. 3 more than the water glass, promptly mol ratio is about more than 2.8, and the alkali in the water glass is very few, is used for stimulating the latent hydraulicity of the slag required alkali number that makes it to harden not enough, therefore can not obtain the original intensity of slag.Thereby how also water glass and slag Fails To Respond, and not only gelation prolongs significantly, and slag separates so that be difficult to obtain the induration of homogeneous with water glass.
Thick as the above-mentioned scope of the size ratio of pomace, then not only can harm impregnability, and the reactivity of the alkali of water glass and slag reduces greatly, consequently not gelation in the gelation scope that is suitable for injecting, and the alkali of water glass becomes branch to cause concreteness not enough to sand.
Just, according to the present invention, owing to used average grain diameter below 10 μ m, specific area is at 5000cm
2Above reactive active particulate slag and the mol ratio of/g is the water glass of 1.5-2.8, can obtain the gelation time in the wide scope at the very start, but also can obtain the good impregnability to fine grained soils.
And, owing in this water glass and slag system, going back and having used cement and/or lime class, so can shorten gelation time effectively; Also,, just can control gelation time at an easy rate thus so can prolong gelation time effectively owing to also adjust agent with the calcium stripping quantity.
If the mol ratio of water glass is below 1.5, then to shorten the gelation time aequum extremely many by adding lime class and cement, and viscosity increases greatly so that be thixotroping (チ キ ソ ト ロ PVC ッ Network) proterties, thereby impregnability reduces greatly.And gelation time can not shorten significantly.
But, if water glass is within the scope of the invention, even then the addition of cement and lime class also can shorten gelation time less effectively.Therefore, can not cause viscosity significantly to increase, therefore, can not harm impregnability.If water glass within the scope of the invention, then the coexistence of slag and water glass the sort of thixotroping proterties of cement and lime class can not occur down, can keep low viscosity.This is considered to, and among the CaO of slag, CaO easily free as cement and lime class is few, if the amount of alkali more than ormal weight, then will dissociate at the beginning.
Followingly specify the present invention, but the present invention is not limited to these embodiment according to embodiment.
1. use material
(1) water glass
Use the 5 kinds of different water glass of mol ratio shown in the table 1.
Table 1
Water glass No. SiO
2(%) Na
2O (%) mol ratio
1 28.75 10.03 2.96
2 28.05 10.05 2.76
3 27.36 14.05 2.01
4 25.17 17.11 1.54
5 24.94 18.86 1.37
(2) slag
To have SiO
2: 33.02%, CaO:41.94%, Al
2O
3: 12.83%, MgO:8.61%, Fe
2O
3: 0.37% one-tenth Water Quenching Slag that is grouped into is pulverized, and uses specific area and the 4 different kind Water Quenching Slag of average grain diameter shown in the table 2.
Table 2
Slag No. specific area (cm
2/ g) average grain diameter (μ m)
1 4,200 13.0
2 5,300 9.7
3 8,300 8.0
4 10,200 6.0
(3) cement
To have SiO
2: 22.2%, CaO:64.6%, Al
2O
3: 5.4%, Fe
2O
3: 3.1% one-tenth portland cement that is grouped into is pulverized, and uses the specific area three kind portland cements different with average grain diameter shown in the table 3.
Table 3
Cement NO. specific area (cm
2/ g) average grain diameter (μ m)
1 4,000 13.7
2 5,500 9.1
3 8,600 8.2
(4) lime
Use 3 kinds of pulverous industrial slaked limes shown in the table 4.
Table 4
Slaked lime No. specific area (cm
2/ g) average grain diameter (μ m)
1 4,500 12.9
2 5,300 9.2
3 8,400 8.3
(5) the calcium stripping quantity is adjusted agent
Use the most frequently used industrial sodium bicarbonate (NaHCO
3), sodium carbonate (Na
2CO
3), sodium hydrogen phosphate (Na
2HPO
412H
2O), calgon ((NaPO
3)
6)
2. water glass-slag system
About the system of being made up of the slag of the water glass of table 1 and table 2, its cooperation and gelation time, viscosity, uniaxial compressive strength are shown in Table 5.Uniaxial compressive strength be illustrated in the mould that hybrid standard sand and fluid,matching are on one side filled on one side and the sand gel that obtains for the result of examination body.
But intensity was illustrated in the intensity after the maintenance in the mould in 7 days, and 49 days intensity is illustrated in 7 days moulds after the maintenance, again the intensity after the maintenance in water.The strength test result of table 6 and table 7 too.
In table 5, the example of embodiment No.1-20 is 4 of mixture table 2 kinds of slags separately in total amount 1000g, makes the SiO of 5 kinds of water glass of table 1
2Concentration all becomes 8%.Wherein embodiment No.1-4 is the water glass of mol ratio 2.96, and gelation time is oversize, and high viscosity and weak strength are consequently separated with supernatant.The water glass of embodiment No.17-20 mol ratio 1.37 also has same tendency, particularly viscosity height this moment.
Different therewith, use among the embodiment No.5-16 of the water glass in the scope of the invention, except that the embodiment No.5,9,13 of the slag No.1 that has cooperated table 2, all demonstrate low viscosity and high strength.Particularly having cooperated slag No.3, the 4(specific area of table 2 is 8000cm
2/ g is above, average grain diameter is below 10 μ m) embodiment No.7,8,11,12,15,16 in, its effect is particularly remarkable.
Can be found out that by this result use the about 1.5-2.8 of mol ratio of water glass, using the average grain diameter of slag is below the 10 μ m, specific area is 5000cm
2More than/the g, 8000cm particularly
2The above reagent of/g can be brought into play very significant effect.
Embodiment No.21-28 will be in the slag combination of the No.4 of the No.3 water glass of table 1 of the scope of the invention and table 2, changes the example of concentration of sodium silicate.The SiO of water glass
2The embodiment No.21 of concentration extremely low (1.37%) is a low-intensity, SiO
2It is short to present high viscosity and gelation time among the embodiment 28 of concentration very high (21.9%), and strength ratio is lower.Therefore, the concentration of water glass is with SiO
2The scope that amount accounts in fluid,matching about 1.5-20% is advisable.
3. water glass-slag-cement slaked lime system
About with water glass-slag system of above-mentioned 2 as base-material, the system of mixed cement and/or slaked lime in this system again, table 6 illustrates its cooperation and gelation time, viscosity, uniaxial compressive strength.
In table 6, embodiment No.(15) as a comparison case, only listed the embodiment No.15 of the table of forming by water glass and slag 5 once more.Embodiment No.29-35 is the example that the part of the slag of embodiment No.15 is replaced with cement.All be that viscosity increases and the gelation time shortening in any situation, intensity is reinforced.Its degree with cement amount increase and significantly.Particle about cement, thin more, promptly the No.2 thinner than No.1 also has No.3 in the table 3, and little its gelation time of finer particles shortens more and intensity is strengthened, but can obtain the few good result, particularly average grain diameter of viscosity rising is below the 10 μ m and specific area is 5000cm
2/ g above (embodiment No.30,33), more preferably 8000cm
2Under the situation of/g above (embodiment 31,34), its more remarkable effect.
Embodiment No.36-42 is the system of replacing a part of slag with slaked lime, illustrate with the cement situation in same tendency.Its tendency is than more remarkable in the cement situation.
So viscosity rises, but gelation time shortens consequently intensity, and especially early strength obviously is reinforced.Therefore, part is also used cement in water glass of the present invention-slag system, the lime class is particulate cement particularly, particulate lime time-like, even sacrifice some impregnabilities, but, improve intensity for to shorten gelation time, be that the ground of object is suitable for particularly, can give full play to its effect to improve early strength.
4. water glass-slag-calcium stripping quantity is adjusted the agent system
About with water glass-slag of above-mentioned 2 as base-material, in this system, mix to add the calcium stripping quantity and adjust resultful especially solubility alkaline agent in the agent, be i.e. sodium acid carbonate, sodium carbonate, the system of sodium hydrogen phosphate, calgon, its cooperation and gelation time shown in the table 7, sticking
In table 7, embodiment No.(12) as a comparison case, listed the embodiment No.12 of the table of forming by water glass-slag 5 once more.Embodiment No.43-52 is that water glass-slag system with embodiment No.12 is as base-material, again to wherein adding sodium acid carbonate, sodium carbonate, the system of sodium hydrogen phosphate, calgon.
Addition is many more, and gelation time is long more, and viscosity illustrates the tendency of slow reduction, and the intensity of induration demonstrates the tendency of small slow reduction.Therefore, be applicable to not wish to improve intensity but wish that gelation time prolongs and improves impregnability is the ground of object, can give full play to its effect to this ground.
5. soak into test and alkali dissolution test
Carry out the test of soaking into of reagent of the present invention with the injection device of Fig. 1.In Fig. 1, the 1st, compressor, the 2, the 3rd, pressure gauge.Be connected with compressor 1 having agitator 4() tank 5 in reagent 6 of the present invention is housed.
The 7th, the acrylic resin mould, wherein the filling sand 8, and the work of the reagent 6 of filling in the tank 5 by compressor 1 imports in the sand 8 in the acrylic resin mould 7.At this moment, reagent 6 immerses in the sand 8, and the reagent 6 that will see through is soon got in the graduated cylinder 11, measures the situation of soaking into.9 and 10 is wire gauzes.The sand 8 of filling in the mould 7 of acrylic resin shown in the table 8 soaks into the measurement result of test shown in the table 9.
Table 8
Sand NO. uses particle diameter (μ m) 15% particle diameter (μ m) 10% particle diameter (μ m) of sand
1 Feng Pu standard sand (74-420) 147 130
2 mixed sand (420) 110 95
3 mixed sand (420) 90 75
4 mixed sand (420) 75 60
Table 9
Symbolic representation in the table 9 is as follows.
Zero: undertaken normal gelization by the injection liquid that mould is discharged.Inner induration is normal.
△: the injection lyogelization of discharge is slow, inner fixed situation be the bottom firmly and the fixed weakness in top.
X: the injection liquid of discharge does not carry out gelation, and inner fixed situation is that only the bottom is fixed, and top is not fixed.
XX: the confession examination body that can not get homogeneous.
Annotate: uniaxial compressive strength is the intensity (kgf/cm after the maintenance in 1 all inherent moulds
2).
In addition, will carry out above-mentioned soak into after the test for the examination body imbed be contained in dark 20cm, wide 50cm, the long 50cm tank to the degree of depth be in the mountain sand of 10cm, water is immersed until 10cm, after 10 days, from tank end water sampling, mensuration PH.It the results are shown in the table 10.
Table 10
Symbolic representation in the table 10 is as follows.
Zero: PH is below 10.
△: PH is 10-10.5.
X:PH is more than 10.5.
From above discussion result of the test as can be known, when to use mol ratio be water glass 2.8 or more (the experiment No.5-8 of table 9), owing to the slag separation make soak into insufficient.When to use mol ratio be water glass below 1.5 (the experiment No.9-12 of table 9), viscosity height, induration top fixed insufficient.Experiment No.1-4 within the scope of the present invention then can obtain any aspect all good soak into the result.
In the PH of steep water test, can find out that from table 10 mol ratio of water glass causes the reaction of water glass and slag insufficient owing to water glass separates with slag, easy stripping of the alkali of water glass so that pH value height when (testing No.17-20) more than 2.8.The mol ratio of water glass becomes higher owing to base excess makes PH when (experiment No.21-24) below 1.5.And experiment No.13-16 within the scope of the present invention, its PH rises seldom, is presented at below 10.
As seen from the above embodiment, be that the water glass of 1.5-2.8 and average grain diameter are, specific area is about 5000cm below the 10 μ m only by mol ratio
2More than/the g, preferably about 8000cm
2The system that the above particulate slag of/g is formed, its abundant impregnability and consolidation strength aspect are all very good.
In addition, also the above-mentioned system that this water glass-slag can be formed is mixed therein and is added cement, lime class as base-material, and preferred average grain diameter is that 10 μ m are following, specific area is about 5000cm
2/ g is above, more preferably from about above microgranular cement, slag or the calcium stripping quantity of 8000cm/g adjusted agent, thereby can adjust gelation time, impregnability, consolidation strength, makes it to be suitable for most injecting the object ground.
Use the light water glass that silica sand and alkali are dissolved in the present embodiment, add the water glass that alkali is adjusted to mol ratio 1.5-2.5 but also can use in No. 3 water glass.
Slag is to enumerate as an example with Water Quenching Slag, but silicon acid slag with the exception of this is all applicable.Cement can be enumerated widely used portland cement, but blast-furance cement in addition, alumina cement etc. also can both be suitable for.The lime class can be enumerated industrial slaked lime, becomes slaked lime in the water but also quicklime can be placed on, and demonstrates the tendency same with slaked lime.
The present invention has following effect.
1. in the agent for injection of base that is formed by waterglass and slag, by use mol ratio be about in the 1.5-2.8 scope waterglass and below the about 10 μ m of average grain diameter and the about 5000cm of specific area2/ g is above, preferred about 8000cm2The particulate slag that/g is above just can obtain keeping the low-viscosity while, need long gelation time with really fixed and for a long time in have high-intensity induration.
With above-mentioned 1 waterglass-slag system as base-material, wherein again blended cement, lime, following, the about 5000cm of specific area of the about 10 μ m of average grain diameter preferably2More than/the g, 8000cm more preferably from about2Cement, lime that/g is above increase some viscosity, accelerate but can adjust its gelation time, and can improve intensity.
With above-mentioned 1 waterglass-slag system as base-material, wherein also add the solubility of Ca adjusting agent, thereby some reduction of intensity, but viscosity reduces, adjust its gelation time with activation Slow down, and can improve impregnability.
Fig. 1 is reagent is injected in expression in sand a device sketch.
Symbol description is as follows among the figure.
1 compressor
4 agitators
5 tanks
6 reagent
7 acrylic resin moulds
8 sands
Claims (7)
1, a kind of agent for injection of base, it contain as the mol ratio of active ingredient the water glass of 1.5-2.8 scope and average grain diameter below 10 μ m, specific area is at 5000cm
2The particulate slag that/g is above.
2, according to the agent for injection of base of claim 1, wherein, the specific area of above-mentioned particulate slag is at 8000cm
2More than/the g.
3, according to the agent for injection of base of claim 1, it is characterized in that, in the agent for injection of base of claim 1, also contain cement and/or lime class.
4, according to the agent for injection of base of claim 3, wherein, described cement and lime class average grain diameter separately are below 10 μ m, and specific area is at 5000cm
2More than/the g.
5, according to the agent for injection of base of claim 3, wherein, described cement and lime class average grain diameter separately are below 10 μ m, and specific area is at 8000cm
2More than/the g.
6,, in this reagent, also contain the calcium stripping quantity and adjust agent according to the agent for injection of base of claim 1.
7, according to the agent for injection of base of claim 1, wherein, the amount of water glass is converted into the SiO in the water glass
2, be 1.5-20 weight %.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP342029/1993 | 1993-12-14 | ||
| JP342029/93 | 1993-12-14 | ||
| JP5342029A JP2961484B2 (en) | 1993-12-14 | 1993-12-14 | Chemical solution for ground injection and ground injection method using this liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1108719A true CN1108719A (en) | 1995-09-20 |
| CN1059693C CN1059693C (en) | 2000-12-20 |
Family
ID=18350630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94119305A Expired - Fee Related CN1059693C (en) | 1993-12-14 | 1994-12-13 | Agent for injection of base |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP2961484B2 (en) |
| KR (1) | KR100197851B1 (en) |
| CN (1) | CN1059693C (en) |
| GB (1) | GB2284841B (en) |
| MY (1) | MY112267A (en) |
| SG (1) | SG50588A1 (en) |
| TW (1) | TW266239B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162667A (en) * | 2018-10-11 | 2019-01-08 | 吕梁学院 | Coal mining two-liquid grouting device |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3166960B2 (en) * | 1994-02-18 | 2001-05-14 | 強化土エンジニヤリング株式会社 | Ground injection method |
| JPH0867876A (en) * | 1994-08-27 | 1996-03-12 | Kyokado Eng Co Ltd | Chemical for injecting into ground |
| JP2923840B2 (en) * | 1994-08-31 | 1999-07-26 | 強化土エンジニヤリング株式会社 | Water glass grout material |
| JPH0978064A (en) * | 1995-09-14 | 1997-03-25 | Kyokado Eng Co Ltd | Chemical solution for grouting |
| FR2742432B1 (en) * | 1995-12-15 | 1998-02-06 | Spie Fondations | RIGIDIFICATION ACCELERATOR, GROUT FOR SEALING AND / OR CONSOLIDATION OF SOILS AND CONSTRUCTION MATERIALS RELATING TO SUCH AN ACCELERATOR, METHODS USING SUCH GROUT |
| JP4505064B2 (en) * | 1998-02-16 | 2010-07-14 | 三井化学株式会社 | Ground consolidation improver |
| JP4505066B2 (en) * | 1998-02-16 | 2010-07-14 | 三井化学株式会社 | Suspension grout |
| JP4505065B2 (en) * | 1998-02-16 | 2010-07-14 | 三井化学株式会社 | Ground consolidation improver |
| JP4505063B2 (en) * | 1998-02-16 | 2010-07-14 | 三井化学株式会社 | Suspension grout and its ground improvement method |
| JP2000239661A (en) * | 1999-02-24 | 2000-09-05 | Kyokado Eng Co Ltd | Grouting material for grouting ground and method for grouting ground using same |
| JP2001098270A (en) * | 1999-09-29 | 2001-04-10 | Kyokado Eng Co Ltd | Ground solidification material |
| KR100878682B1 (en) * | 2002-08-30 | 2009-01-13 | 주식회사 포스코 | Method for controlling formation of strong alkaline steel-making slag dissolution water |
| JP2007314724A (en) * | 2006-05-29 | 2007-12-06 | Raito Kogyo Co Ltd | Material for soil improvement |
| JP5051825B2 (en) * | 2006-11-30 | 2012-10-17 | 太平洋マテリアル株式会社 | Water stop material |
| KR101078044B1 (en) * | 2008-10-31 | 2011-10-31 | (주)티피 | Grouting Composition and Method of Construction Using Thereof |
| KR101351495B1 (en) | 2013-10-28 | 2014-01-14 | 우경기술주식회사 | Manufacturing method for grouting chemical liquid and grouting gel having environment-friendly silicate |
| JP6961270B1 (en) * | 2020-10-19 | 2021-11-05 | 強化土エンジニヤリング株式会社 | Ground consolidation material and ground improvement method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT343929B (en) * | 1975-06-18 | 1978-06-26 | Philips Nv | MAGNETIC HEAD |
| JPS54113911A (en) * | 1978-02-24 | 1979-09-05 | Onoda Cement Co Ltd | Improving material of organic matter soft ground |
| JPH0721136B2 (en) * | 1984-09-04 | 1995-03-08 | 株式会社シモダ技術研究所 | Grout |
| JPS61283683A (en) * | 1985-06-11 | 1986-12-13 | Kyowa Kaihatsu Kk | Grout for improving weak ground |
| US4761183A (en) * | 1987-01-20 | 1988-08-02 | Geochemical Corporation | Grouting composition comprising slag |
| FR2629495B1 (en) * | 1988-04-01 | 1993-04-30 | Soletanche | INJECTION PRODUCT FOR SEALING AND / OR CONSOLIDATION FOR FLOORS AND CONSTRUCTION MATERIALS AND METHOD FOR ITS IMPLEMENTATION |
| JPH0742458B2 (en) * | 1991-02-01 | 1995-05-10 | 強化土エンジニヤリング株式会社 | Backfill injection material |
| JPH0794660B2 (en) * | 1992-01-29 | 1995-10-11 | 強化土エンジニヤリング株式会社 | Ground injection method |
-
1993
- 1993-12-14 JP JP5342029A patent/JP2961484B2/en not_active Expired - Fee Related
-
1994
- 1994-12-12 TW TW083111534A patent/TW266239B/zh not_active IP Right Cessation
- 1994-12-13 CN CN94119305A patent/CN1059693C/en not_active Expired - Fee Related
- 1994-12-14 KR KR1019940034052A patent/KR100197851B1/en not_active IP Right Cessation
- 1994-12-14 MY MYPI94003348A patent/MY112267A/en unknown
- 1994-12-14 SG SG1996005698A patent/SG50588A1/en unknown
- 1994-12-14 GB GB9425218A patent/GB2284841B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162667A (en) * | 2018-10-11 | 2019-01-08 | 吕梁学院 | Coal mining two-liquid grouting device |
| CN109162667B (en) * | 2018-10-11 | 2020-07-28 | 吕梁学院 | Coal mining double-liquid grouting device |
Also Published As
| Publication number | Publication date |
|---|---|
| SG50588A1 (en) | 1998-07-20 |
| MY112267A (en) | 2001-05-31 |
| GB2284841A (en) | 1995-06-21 |
| JPH07166163A (en) | 1995-06-27 |
| GB9425218D0 (en) | 1995-02-08 |
| CN1059693C (en) | 2000-12-20 |
| KR950018388A (en) | 1995-07-22 |
| TW266239B (en) | 1995-12-21 |
| KR100197851B1 (en) | 1999-06-15 |
| GB2284841B (en) | 1997-06-18 |
| JP2961484B2 (en) | 1999-10-12 |
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