WO1986006400A1 - Method for improving the strength and impermeability of soils and engineering structures - Google Patents

Method for improving the strength and impermeability of soils and engineering structures Download PDF

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Publication number
WO1986006400A1
WO1986006400A1 PCT/HU1985/000027 HU8500027W WO8606400A1 WO 1986006400 A1 WO1986006400 A1 WO 1986006400A1 HU 8500027 W HU8500027 W HU 8500027W WO 8606400 A1 WO8606400 A1 WO 8606400A1
Authority
WO
WIPO (PCT)
Prior art keywords
gel
water
optionally
catalyst system
silicic acid
Prior art date
Application number
PCT/HU1985/000027
Other languages
English (en)
French (fr)
Inventor
Ferenc Csanda
Gyo^"zo^" CZERNY
Tibor Engel
Gábor Nagy
Tamás Székely
Árpád BERTALAN
Original Assignee
Mta Természettudományi Kutató Laboratóriumai
Alagi Állami Tangazdaság
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mta Természettudományi Kutató Laboratóriumai, Alagi Állami Tangazdaság filed Critical Mta Természettudományi Kutató Laboratóriumai
Priority to GB8629182A priority Critical patent/GB2186879B/en
Priority to HU852153A priority patent/HU201108B/hu
Priority to NL8520094A priority patent/NL8520094A/nl
Priority to PCT/HU1985/000027 priority patent/WO1986006400A1/en
Priority to DE19853590726 priority patent/DE3590726T1/de
Priority to DD85275896A priority patent/DD235685A5/de
Priority to CS853245A priority patent/CS254340B2/cs
Priority to YU00741/85A priority patent/YU74185A/xx
Priority to IN348/CAL/85A priority patent/IN163304B/en
Priority to ES543196A priority patent/ES8607454A1/es
Priority to FR8508235A priority patent/FR2580659A1/fr
Priority to PL1985254032A priority patent/PL146456B1/pl
Publication of WO1986006400A1 publication Critical patent/WO1986006400A1/en

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Classifications

    • 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
    • C09K17/42—Inorganic compounds mixed with organic active ingredients, e.g. accelerators
    • C09K17/46—Inorganic compounds mixed with organic active ingredients, e.g. accelerators the inorganic compound being a water-soluble silicate
    • 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
    • C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals

Definitions

  • the invention relates to a method for improving the strength and impermeability of soils and engineering structures, particularly ducts and pipelines.
  • soil and “engineering structure” are interprated in the broadest sense; these terms also covering various storage tanks, tunnels, natural and artificial cavities, rocks, etc., and soils surrounding them.
  • Hungarian patent No. 153,975 describes a simple end rapid method for improving the strength and impermeability of soils and engineering structures.
  • water glass or a water glass-containing medium is applied into or onto the article to be treated, and then the water glass is exposed to the effect of hydrogen fluoride, silicon tetrafluoride and/or hydrogen silicofluoride.
  • Water glass when contacted with a gaseous fluoride, rapidly gellifies and completely plugs the leakages, cracks and cavities.
  • this method is utilized to render underground engineering structures (such as ducts or storage tanks) water-tight, it is an additional advantage that water glass which enters the soil through the cracks solidifies as well, improving thereby the embedding of the structure and strengthening the surrounding soil.
  • Fluoride gases have the additional advantage that they improve the corrosion resistance of concrete and reinforced concrete elements.
  • gel-forming polymers Owing to the ir high average molecular weight, gel-forming polymers, even in small amounts, increase the viscosity of the starting water glass solution to such an extent that the resulting mixture is very difficult to handle, its application and the removal of the excess involves numerous technical problems. Sometimes the required amount of polymer cannot be introduced into the water glass solution, since a very thick, honey-like mixture is formed, which cannot be applied onto the article to be treated with the injecting apparatuses available. Gel-forming mixtures with appropriately low viscosity contain generally a rather small amount of polymer, thus the elasticity and ⁇ wel lability of the resulting gels still remain insufficient .
  • the invention relates to a method for improving the strength and impermeability of soils and engineering structures by forming a hydrogel composed of silicic acid and a cross-linked swellable organic polymer in or on the soil or structure treated. According to the invention one proceeds in such a way that an aqueous solution of a silicic acid gel precursor is contacted with a water- soluble gel-forming vinyl monomer in the presence of
  • aqueous solution of a precursor of silicic acid gel e.g. an aqueous solution of water glass with a water-soluble gel-forming vinyl monomer in the presence of the components described above, the following chemical processes proceed simultaneously:
  • silicic acid gel forms from its precursor upon the effect of the polycarboxylic acid. Since these chemical processes take place in parallel, and all of the intermediates formed in the process interact with one another, a gel is formed in which the organic and mineral parts are amalgamated. She visual appearance of the resulting gel clearly differs from that of the gels obtained according to Hungarian patent applications Nos.
  • silicic acid gel precursors ere the various water glasses (sodium silicate , potassium silicate , etc.) , but water-soluble silicones and poly silicates, such as those commonly utilized for preparing moulds, can also be applied.
  • water-soluble gel-forming vinyl monomers the following are to be mentioned: acrylic acid, me thecrylie acid, itaconic acid, maleic acid, fumaric acid, water-soluble salts and esters of these acids, acryl amide, methacryl amide, etc.
  • cross-linking agents for the organic polymer e.g. aldehydes (such as glyoxal, glutaraldehyde, etc.) or divinyl or trivinyl compounds (such as me thylene-bis-acrylsmide , ethylene-bis-acrylamide , triacryl triazine etc.) can be used .
  • the cross-linking agents should be sufficiently water-soluble; their solubility in water should be at least 1 %.
  • the redox catalyst system utilized according to the invention consists of an oxidizing and a reducing component. Any of the known redox type free radical initiator systems utilized conventionally in the production of vinyl polymers can be applied.
  • the oxidizing component may be e.g. hydrogen peroxide, an alkali persulfate or a water-soluble organic peraoid
  • the reducing component may be e .g. a water-soluble organic amine , a water-soluble salt of a metal with varying valencies, a thiosulfate , a bisulfite , etc.
  • Polycarboxylic acids i.e.
  • orgenic carboxylic acids with at least two earboxy groups which can be utilized in the process of the invention are e .g. tartario acid, sucoinic acid, citric acid, malic acid, ascorbic acid, etc.
  • the silicic acid gel precursor to vinyl monomer weight ratio, calculated for the dry substances, may vary over a wide range, e.g. 10:1 to 1:10, preferably 5:1 to 1:1, most preferably 4:1 to 2:1. Due to economical reasons it is preferred to utilize the vinyl monomers in low amounts.
  • the silicic acid gel precursor to polycarboxylic acid weight ratio, calculated for the dry substances, may vary within 1:0.5 to 1:0.06, preferably 1:0.2 to 1:0.08, most preferably about 1:0.1.
  • the amount of the cross-linking agent, calculated for the.weight of the vinyl monomer present, may be 1:0.01 to 1:0.3, preferably 1:0.05 to 1:0.2.
  • the amount of the redox catalyst system, calculated for the weight of the vinyl monomer present, may be 1:0.01 to 1:0.5, preferably 1:0.05 to 1:0.3. Within this range, the catalyst system contains the oxidizing and the reducing components preferably in about equimolar amounts.
  • the gel-forming mixture may also contain one or more additives which modify the properties of the gel formed.
  • additives may be the commonly known additives of cross-linked vinyl polymers, such as plasticizers, stabilizers, decomposition inhibitors, etc., of which melamine, urea, monomethylol urea and thiourea are mentioned.
  • the amounts of such additives, if present, may reach the amount of the vinyl monomer.
  • the gel-forming mixture may contain one or more filling agent(s) generally applied in such compositions, such as asbestos, sand, fly ash, bentonite, etc.
  • filling agent(s) generally applied in such compositions, such as asbestos, sand, fly ash, bentonite, etc.
  • the amount of such filling agents is not critical and is restricted essentially by technological factors (e.g. stirrebility end viscosity of the mixture, ease of application, etc.).
  • the individual components of the gel-forming mixture are admixed with one another in an appropriate sequence, determined by compatibility factors, directly on the field of treatment (e.g. in the defective duct to be repaired). It is more preferred, however, to start with two pre-formed aqueous solutions and to admix them on the field of treatment.
  • the compositions of the two aqueous solutions should be chosen so that both solutions remain stable and storable for a prolonged period, and no premature gel formation occurs.
  • compatibility factors should be kept in mind:
  • the silicic acid gel precursor must not be in a common solution with the polycarboxylic acid; - the two components of the redox catalyst system must not be in a common solution; and
  • the aqueous solution of the vinyl monomer must not contain the oxidizing component of the redox catalyst system in free state (it may contain, however, the oxidizing component in masked, such as in complexed, form).
  • the two aqueous solutions to be admixed on the field of treatment may have e .g. the following compositions: Solution “A”: silicic acid gel precursor (e.g. water glass), oxidizing component of the redox catalyst system, water; Solution “B”: water-soluble vinyl monomer, a cross-linking agent for the organic polymer, a polycarboxylic acid, reducing component of the redox catalyst system water; or Solution “A”: a silicic acid gel precursor, reducing component of the redox catalyst system water; Solution “B”: water-soluble vinyl monomer, a cross-linking agent for the organic polymer, a polycarboxylic acid, oxidizing component of the redex catalyst syste in masked form (e.g. complexed with uree), water.
  • Solution “A” silicic acid gel precursor (e.g. water glass), oxidizing component of the redox catalyst system, water
  • Solution “B” water-soluble vinyl monomer, a cross
  • an acidic filling agent e.g. acidic fly ash
  • an acidic filling agent must not be added to the solution of the silicic acid gel precursor.
  • the method of the invention can be applied in the building industry for improving the strength and impermeability of soils and engineering structures.
  • the individual components of the gel-forming mixture - presented preferably in two pre-formed aqueous solutions - are admixed with one another at the place of the treatment, e.g. in or on the soil or in or on the engineering structure.
  • soil is to be solidified by the method of the invention, it is preferred to fill the two aqueous solutions into the tanks of a two-tank injector provided with a mixing head, end to inject the mixture of the two solutions into the soil to be treated.
  • a duct is to be repaired by the method of the invention, it is preferred to use the so-celled "filling up" technique, where the two solutions are introduced after one another into the duct to be repaired.
  • the method of the invention retains all the major advantages of the known methods disclosed in the cited patents and patent applications. Like these known methods, it provides a quick, safe and economical way for rendering soils or engineering structures strong and water-tight. Compared to the known methods, the method of the invention has the following additional advantages:
  • the gel-forming mixtures are easy to handle, the treatment requires no specific equipment end no specific technological precaution;
  • Solution "A” water 40.
  • ml potassium persulfate 1.8 g thiourea 14 g concentrated aqueous water glass solution (dry substance : 37 w/w %) 50 ml
  • Solution "B” water 80 ml methacrylic acid 16 ml tartaric acid 10. g me thylene-bis-acrylamide 0.5 g ferrous sulfate 0.5 g
  • the two solutions are admixed with one another under intense stirring. A homogeneous, transparent gel is formed in 7.5 minutes.
  • Solution "A” water 90 ml potassium persulfate 1.8 g thiourea 14 g
  • Solution "B” water 80 ml acrylic acid 16 ml tartaric acid 10 g methylene-bis-acrylamide 0.5 g ferrous sulfate 0.5 g
  • Solution "A” water 40 ml thiourea 14 g concentrated aqueous water glass solution (dry substance: 37 w/w %) 50 ml
  • Solution "B” water 80 ml acrylic acid 16 g tartaric ecid 10. g methylene-bis-acrylamide 0.5 g
  • Solution "B” water 80 ml acrylic acid 16 g succinic acid 10 g methylene-bis-acrylamide 2 g ferrous sulfate 1 g The two solutions are admixed with one another under intense stirring. A homogeneous, transparent gel is formed within one minute.
  • Solution "A” water 70. ml potassium persulfate 0.9 g melamine 7 g concentrated aqueous water glass solution (dry substance: 37 w/w %) 25 ml
  • Solution "B” water 80 ml methacrylie acid 16 ml tartaric acid 10 g methylene-bis-acrylamide 0.5 g ferrous sulfate 0.5 g
  • the two solutions are admixed with one another under intense stirring.
  • a homogeneous, transparent gel is formed in 120 minutes.
  • Solution "A” water 16.
  • ml potassium persulfate 0.8 g melamine 6
  • concentrated aqueous water glass solution (dry substance: 37 w/w %) 20
  • Solution "B” water 50 ml itaconic acid 4.
  • ferrous sulfate 0.5 g methylene-bis-acrylamide 0.5 g citric acid 2 g
  • Solution "A” water 19 ml concentrated aqueous water glass solution (dry substance: 37 w/w %) 80 ml triethanol amine 1 ml
  • Solution "B” water 85 ml acrylic acid 15 ml citric acid 10 ml hydrogen peroxide complexed with urea 4. g methylene-bis-acrylamide 0.5 g
  • the two solutions are admixed with one another under intense stirring.
  • a homogeneous, transparent gel is formed in 18 minutes.
  • the duct section to be treated is shown in Fig. 1.
  • the duct section bordered by shafts 2 and 3 is cleaned appropriately and then blocked at the shafts with tube stoppers 1. Thereafter the closed duct section is filled up with solution "A" through shaft 2.
  • Solution "A” is stored in tank 4.
  • the pressure required to inject the solution into the leakages, cracks and cavities is provided by fillint up the shaft to the appropriate height.
  • a solution height of about 1-2 m is maintained in shaft 2.
  • the solution in the shaft is refilled, if necessary. After an appropriate period, generally about 10-20 minutes, the remainder of the liquid is pumped back from the duct section into tank 4 through shaft 2.
  • solution "B” is introduced from tank 6 into the duct section through shaft 2. Again, the pressure required to inject the solution into the leakages, cracks and cavities is ensured by filling up the shaft to the appropriate height. The solution is refilled, if necessary. After an appropriate period, preferably when exfiltration ceases, the remainder of the liquid is pumped back into tank 6 through shaft 2, and the tube stoppers are removed. Thus repair is finished. If the results are to be checked by water-tightness tests using water. or air, this can b e done before removing the tube stoppers. However, this quality control can be avoided by leaving solution "B" in shaft 2 for an appropriate period. When the level of the solution in shaft 2 is not lowered within 15 minutes (or the extent of lowering is within the prescribed, tolerable limits), this indicates that the duct is appropriately water tight.
  • Solutions "A” and “B” exfiltrated through the defects, inappropriate joints or cracks of the duct form stable gel 5 inside and/or in the surroundings of the duct treated. This enables not only the seepage lines of the duct to be blocked perfectly, but also the soil surroundi ng the duct to solidify and become water-tight. Consequently, the embedding conditions of the duct also improve to a great extent, which is a decisive factor in view of the stability and life span of duct networks.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Treatment Of Sludge (AREA)
PCT/HU1985/000027 1985-04-22 1985-04-22 Method for improving the strength and impermeability of soils and engineering structures WO1986006400A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
GB8629182A GB2186879B (en) 1985-04-22 1985-04-22 Method for improving the strength and impermeability of soils and engineering structures
HU852153A HU201108B (en) 1985-04-22 1985-04-22 Process for increasing solidity and impermeability of soils and engineering establishments
NL8520094A NL8520094A (nl) 1985-04-22 1985-04-22 Werkwijze voor de verbetering van de vastheid en ondoorlaatbaarheid van bodem en technische bouwwerken.
PCT/HU1985/000027 WO1986006400A1 (en) 1985-04-22 1985-04-22 Method for improving the strength and impermeability of soils and engineering structures
DE19853590726 DE3590726T1 (enrdf_load_stackoverflow) 1985-04-22 1985-04-22
DD85275896A DD235685A5 (de) 1985-04-22 1985-05-02 Verfahren zur verbesserung der festigkeit und undurchdringlichkeit von baugruenden und ingenieurbauwerken
CS853245A CS254340B2 (en) 1985-04-22 1985-05-05 Method of soil imperviousness and engineering structures consolidation
YU00741/85A YU74185A (en) 1985-04-22 1985-05-06 Process for improving hardness and sealing of building constructions floors
IN348/CAL/85A IN163304B (enrdf_load_stackoverflow) 1985-04-22 1985-05-06
ES543196A ES8607454A1 (es) 1985-04-22 1985-05-16 Un metodo de mejorar la resistencia e impermeabilidad de suelos y estructuras de ingenieria
FR8508235A FR2580659A1 (fr) 1985-04-22 1985-05-31 Procede d'amelioration de la resistance et de l'impermeabilite des terrains et des structures construites
PL1985254032A PL146456B1 (en) 1985-04-22 1985-06-17 Method of obtaining hydrogels,in particular for increasing strength and impermeability of soil and civil engineering structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/HU1985/000027 WO1986006400A1 (en) 1985-04-22 1985-04-22 Method for improving the strength and impermeability of soils and engineering structures

Publications (1)

Publication Number Publication Date
WO1986006400A1 true WO1986006400A1 (en) 1986-11-06

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Application Number Title Priority Date Filing Date
PCT/HU1985/000027 WO1986006400A1 (en) 1985-04-22 1985-04-22 Method for improving the strength and impermeability of soils and engineering structures

Country Status (12)

Country Link
CS (1) CS254340B2 (enrdf_load_stackoverflow)
DD (1) DD235685A5 (enrdf_load_stackoverflow)
DE (1) DE3590726T1 (enrdf_load_stackoverflow)
ES (1) ES8607454A1 (enrdf_load_stackoverflow)
FR (1) FR2580659A1 (enrdf_load_stackoverflow)
GB (1) GB2186879B (enrdf_load_stackoverflow)
HU (1) HU201108B (enrdf_load_stackoverflow)
IN (1) IN163304B (enrdf_load_stackoverflow)
NL (1) NL8520094A (enrdf_load_stackoverflow)
PL (1) PL146456B1 (enrdf_load_stackoverflow)
WO (1) WO1986006400A1 (enrdf_load_stackoverflow)
YU (1) YU74185A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2641806A1 (fr) * 1989-01-16 1990-07-20 Diffusion Rech Tech Financ Procede de stabilisation d'une aire de terrain meuble
GB2258874A (en) * 1991-08-17 1993-02-24 Peter John Town Method of forming an impervious barrier beneath a thoroughfare
WO1996000818A3 (de) * 1994-06-23 1996-03-28 Polinvent Kft Verfahren zum wasserdichtmachen von in den boden eingebetteten ingenieursobjekten durch auffüllen

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0345364B1 (en) * 1988-06-06 1993-12-15 Sanipor International AG Method for improving the strength and impermeability of soils and engineering structures
DE4425314C1 (de) * 1994-06-23 1995-09-21 Polinvent Gmbh Verfahren zum Wasserdichtmachen von in den Boden eingebetteten Ingenieursobjekten durch Auffüllen
DE19856729A1 (de) * 1998-12-09 2000-06-15 Cognis Deutschland Gmbh Repairlösung zur Abdichtung von Bohrlöchern
CZ310073B6 (cs) 2020-12-07 2024-07-17 Dunet S.R.O. Myčka pro ruční mytí a oplachování nápojového skla, zejména pivních sklenic s uchem

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GB1074246A (en) * 1963-09-05 1967-07-05 Sumitomo Chemical Co Soil stabilization
SU199791A1 (ru) * 1964-10-07 1967-07-13 Способ стабилизации грунта
DE1642378B1 (de) * 1965-01-26 1971-03-25 Progil Verfahren zur Bodenverfestigung
DE1567776B1 (de) * 1965-12-28 1971-07-15 Progil Verfahren zum Stabilisieren und Verfestigen von Boeden mit Hilfe einer waessrigen Silicatloesung unter Zusatz eines Esters einer organischen Saeure als gelbildendes Mittel
SU387085A1 (ru) * 1971-08-11 1973-06-21 С. Д. Воронкевич , Л. А. Евдокимова Московский государственный университет М. В. Ломоносова Тампонажный раствор
DE2242713B2 (de) * 1971-09-01 1973-10-25 Rhone-Progil, S.A., Paris Verfahren zum Stabilisieren und Verfestigen von Boden mit Hilfe einer waßngen Sihcatlosung unter Zusatz eines Esters einer organischen Saure als gelbildendes Mittel
FR2328804A1 (fr) * 1975-10-20 1977-05-20 Kyokado Eng Co Procede de consolidation de sols de mauvaise qualite
GB1489976A (en) * 1974-11-08 1977-10-26 Nitto Chemical Industry Co Ltd Stabilisation of soil
JPS581716B2 (ja) * 1977-06-20 1983-01-12 日東化学工業株式会社 土質の安定化法
SU1110873A1 (ru) * 1983-03-15 1984-08-30 Специализированный Проектно-Изыскательский И Экспериментально-Конструкторский Институт "Гидроспецпроект" Тампонажный раствор

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US3202214A (en) * 1960-04-18 1965-08-24 Halliburton Co Preparation and use of sodium silicate gels

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GB1074246A (en) * 1963-09-05 1967-07-05 Sumitomo Chemical Co Soil stabilization
SU199791A1 (ru) * 1964-10-07 1967-07-13 Способ стабилизации грунта
DE1642378B1 (de) * 1965-01-26 1971-03-25 Progil Verfahren zur Bodenverfestigung
DE1567776B1 (de) * 1965-12-28 1971-07-15 Progil Verfahren zum Stabilisieren und Verfestigen von Boeden mit Hilfe einer waessrigen Silicatloesung unter Zusatz eines Esters einer organischen Saeure als gelbildendes Mittel
SU387085A1 (ru) * 1971-08-11 1973-06-21 С. Д. Воронкевич , Л. А. Евдокимова Московский государственный университет М. В. Ломоносова Тампонажный раствор
DE2242713B2 (de) * 1971-09-01 1973-10-25 Rhone-Progil, S.A., Paris Verfahren zum Stabilisieren und Verfestigen von Boden mit Hilfe einer waßngen Sihcatlosung unter Zusatz eines Esters einer organischen Saure als gelbildendes Mittel
SU475002A3 (ru) * 1971-09-01 1975-06-25 Рон-Прожиль (Фирма) Состав дл уплотнени почвы
GB1489976A (en) * 1974-11-08 1977-10-26 Nitto Chemical Industry Co Ltd Stabilisation of soil
FR2328804A1 (fr) * 1975-10-20 1977-05-20 Kyokado Eng Co Procede de consolidation de sols de mauvaise qualite
JPS581716B2 (ja) * 1977-06-20 1983-01-12 日東化学工業株式会社 土質の安定化法
SU1110873A1 (ru) * 1983-03-15 1984-08-30 Специализированный Проектно-Изыскательский И Экспериментально-Конструкторский Институт "Гидроспецпроект" Тампонажный раствор

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M.I. Subbotkin et al: "Kisloto upor nye betony i rastvory na osnove zhidkogo stekla", 1967, Izdatelstvo literatury po stroitelstvu (Moscow), p.35-37 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2641806A1 (fr) * 1989-01-16 1990-07-20 Diffusion Rech Tech Financ Procede de stabilisation d'une aire de terrain meuble
WO1990008226A1 (fr) * 1989-01-16 1990-07-26 Societe De Diffusion Et Recherches Techniques Et Financieres S.A. Procede de stabilisation d'une aire de terrain meuble
AU632082B2 (en) * 1989-01-16 1992-12-17 Societe De Diffusion Et Recherches Techniques Et Financieres S.A. Method for stabilizing loose ground
GB2258874A (en) * 1991-08-17 1993-02-24 Peter John Town Method of forming an impervious barrier beneath a thoroughfare
WO1996000818A3 (de) * 1994-06-23 1996-03-28 Polinvent Kft Verfahren zum wasserdichtmachen von in den boden eingebetteten ingenieursobjekten durch auffüllen

Also Published As

Publication number Publication date
DE3590726T1 (enrdf_load_stackoverflow) 1987-07-16
ES543196A0 (es) 1986-05-16
NL8520094A (nl) 1987-03-02
PL254032A1 (en) 1986-11-04
FR2580659A1 (fr) 1986-10-24
HUT47629A (en) 1989-03-28
IN163304B (enrdf_load_stackoverflow) 1988-09-03
GB2186879B (en) 1989-07-05
HU201108B (en) 1990-09-28
YU74185A (en) 1988-06-30
DD235685A5 (de) 1986-05-14
GB2186879A (en) 1987-08-26
ES8607454A1 (es) 1986-05-16
PL146456B1 (en) 1989-02-28
CS254340B2 (en) 1988-01-15
GB8629182D0 (en) 1987-01-14

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