DE1099954B - Preparations for the chemical sealing and consolidation of soil formations and structures - Google Patents
Preparations for the chemical sealing and consolidation of soil formations and structuresInfo
- Publication number
- DE1099954B DE1099954B DED28604A DED0028604A DE1099954B DE 1099954 B DE1099954 B DE 1099954B DE D28604 A DED28604 A DE D28604A DE D0028604 A DED0028604 A DE D0028604A DE 1099954 B DE1099954 B DE 1099954B
- Authority
- DE
- Germany
- Prior art keywords
- structures
- acid
- consolidation
- preparations
- soil formations
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Description
Mittel zur chemischen Abdichtung und Verfestigung von Bodenformationen und Bauwerken Bei der Durchführung von Bauvorhaben oder bei der Sicherung vorhandener Gebäude oder in anderen Fällen erweist es sich oftmals als notwendig, den vorhandenen Boden oder Bauwerke zu verfestigen.Preparations for the chemical sealing and consolidation of soil formations and buildings When carrying out building projects or when securing existing ones Buildings or in other cases it often turns out to be necessary to replace the existing ones To consolidate soil or structures.
Bei Talsperren, Dämmen, Baugruben usw. ist es andererseits oft erforderlich, durchlässige Schichten abzudichten, uni den Durchtritt von Flüssigkeiten, meist Wasser, zu verhindern.In the case of dams, dams, construction pits, etc., on the other hand, it is often necessary to to seal permeable layers, uni the passage of liquids, mostly Water to prevent.
Für die Abdichtung und Verfestigung von Böden ist eine Reihe von Verfahren entwickelt worden. Hinzuweisen ist auf das Injizieren von Zementmilch sowie auf die speziellen chemischen Verfahren, die unter dem Namen joostenverfahren und Monosolverfahren unter anderem bekannt sind. Bei den letztgenannten Methoden wird als _ eigentliche Abdichtungs- und Verfestigungssubstanz Wasserglas verwendet. Durch Zugabe von besonderen Chemikalien - beim joostenverfahren durch nachträgliches Einpressen von z. B. Calciumchlorid, beim Monosolverfahren durch die Zumischung von Natriumaluminat vor dem Einpressen - wird erreicht, daß die kölloidal gelösten Silikate des Wasserglases in wasserunlösliche Silikate umgewandelt werden und die zu konsolidierenden Bodenschichten oder Bauwerke entweder sofort oder in regelbarer Zeit verfestigen oder abdichten.There are a number of methods for waterproofing and consolidating floors has been developed. Point out is injecting cement milk as well the special chemical processes that go under the name joosten process and monosol process are known among others. The latter methods are used as the _ actual Sealing and solidifying substance water glass is used. By adding special Chemicals - in the joosten process by subsequently pressing in z. B. calcium chloride, in the monosol process by adding sodium aluminate before injection - It is achieved that the colloidally dissolved silicates of the water glass in water-insoluble Silicates are converted and the soil layers or structures to be consolidated solidify or seal either immediately or in an adjustable time.
Der Nachteil dieser Verfahren liegt darin, daß zwei Lösungen nacheinander in den Boden gepreßt werden müssen wie beim joostenverfahren bzw. daß bei Verwendung von nur einer Lösung wie beim Monosolverfahren schon vor dem Einpressen eine Silikatbildung mit fester Struktur auftritt. Vor allem bei feinkapillaren Böden wie schluffigen Feinsanden treten große Schwierigkeiten beim Einpressen auf.The disadvantage of this method is that two solutions follow one another must be pressed into the ground as with the joosten method or that when using from just one solution, as in the monosol process, silicate formation occurs before it is injected occurs with a solid structure. Especially in fine capillary soils such as silty Fine sands are very difficult to inject.
Es sind auch Verfahren bekannt, bei denen durch Zusatz sauer wirkender anorganischer Stoffe der pH-Wert der Wasserglaslösung herabgesetzt wird und Kieselsäuren ausfallen. Die Festigkeit dieser gelartigen Körper ist aber sehr gering.Processes are also known in which, through addition, they have an acidic effect inorganic substances the pH value of the water glass solution is reduced and silicic acids fail. However, the strength of these gel-like bodies is very low.
Weiter ist auch schon bekanntgeworden, den p11-Wert der Wasserglaslösung durch solche organische Stoffe herabzusetzen, die mit Wasser Säuren bilden, wie z. B. Säureanhydride, Säureester, Säurehalogenide, SulfonsäurehaJogenide. Die hierbei entstehenden Kieselsäuren hatten eine genügende Festigkeit. Es handelte sich dabei um Einstufenverfahren, bei denen das Gemisch aus Wasserglaslösung und den organischen Säurebildnern in die zu verfestigende Schicht eingepreßt wurde.The p11 value of the water glass solution has also already become known by organic substances that form acids with water, such as z. B. acid anhydrides, acid esters, acid halides, sulfonic acid halides. The one here The resulting silicas had sufficient strength. It was about it to one-step processes in which the mixture of water glass solution and the organic Acid generators was pressed into the layer to be solidified.
Als Verbesserung zu diesen letztgenannten Verfahren wurde nun gefunden, daß die Verfestigungszeit einer Mischung aus Wasserglas und den organischen Säurebildnern in sehr engen Grenzen gesteuert werden kann, wenn dieser Mischung geringe Mengen von Alkoholen, und zwar sowohl normalen wie isomeren, einwertigen und mehrwertigen, von Estern, die bei der Verseifung Alkohole bilden, von Alkoholaten oder von Ketonen zugegeben werden. Die Stoffe wirken katalytisch.As an improvement to this last-mentioned process, it has now been found that the solidification time of a mixture of water glass and the organic acid generators can be controlled within very narrow limits if this mixture is small of alcohols, both normal and isomeric, monohydric and polyhydric, of esters which form alcohols during saponification, of alcoholates or of ketones be admitted. The substances have a catalytic effect.
Von den einwertigen Alkoholen sind besonders die normalen und isomeren Verbindungen von Methyl-bis Amylalkohol, von den mehrwertigen Alkoholen vor allem Methylglykol, Äthylenglykol und Glyzerin geeignet. Als Ketone kommen z. B. Aceton, Methyläthylketon und Methyl-i-propylketon in Frage.Of the monohydric alcohols, the normal and isomeric ones are particularly important Compounds from methyl to amyl alcohol, especially from polyhydric alcohols Methyl glycol, ethylene glycol and glycerine are suitable. As ketones come z. B. acetone, Methyl ethyl ketone and methyl i-propyl ketone are possible.
Die katalytisch wirkenden Substanzen werden in Mengen von 0,1 bis 1 Gewichtsprozent, bezogen auf die Gesamtmischung, angewandt.The catalytically active substances are used in amounts from 0.1 to 1 percent by weight, based on the total mixture, applied.
Diese Mengen genügen, um die Verfestigungszeit beliebig einzustellen, d. h. sie beliebig zu verkürzen. Die Reaktionszeitverkürzungen können Werte bis zu 750/, erreichen.These quantities are sufficient to set the solidification time as desired, ie to shorten it as desired. The reduction in response times can reach values of up to 750 /.
In den folgenden Beispielen wird die Erfindung näher erläutert.The invention is explained in more detail in the following examples.
Beispiel 1 500 ccm Natriumsilikatlösung, 38 B6 (480 g Wasserglas je
Liter, Molverhältnis 1 Na20 # 3,36 Si02), 500 ccm Wasser, 32,8 ccm o-Toluolsulfochlorid
(25 °/o der theoretischen Neutralisation), 20,0 ccm Emulgator (Natriumsalz einer
Isopropyl-Alkylnaphthalinsulfonsäure), 20,0 ccm Emulsionsstabilisator (1 °/oige
ammoniakalische Lösung von Polyacrylsäure), x ccm Butanol.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED28604A DE1099954B (en) | 1958-07-24 | 1958-07-24 | Preparations for the chemical sealing and consolidation of soil formations and structures |
CH7259759A CH397545A (en) | 1958-07-24 | 1959-04-27 | Preparations for sealing and consolidating soil layers and structures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED28604A DE1099954B (en) | 1958-07-24 | 1958-07-24 | Preparations for the chemical sealing and consolidation of soil formations and structures |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1099954B true DE1099954B (en) | 1961-02-16 |
Family
ID=7039743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED28604A Pending DE1099954B (en) | 1958-07-24 | 1958-07-24 | Preparations for the chemical sealing and consolidation of soil formations and structures |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH397545A (en) |
DE (1) | DE1099954B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1268554B (en) * | 1964-10-21 | 1968-05-16 | Sanyo Chemical Industry Compan | Soil consolidator |
DE1567776B1 (en) * | 1965-12-28 | 1971-07-15 | Progil | Process for stabilizing and consolidating soils with the aid of an aqueous silicate solution with the addition of an ester of an organic acid as a gel-forming agent |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE857936C (en) * | 1951-10-02 | 1952-12-04 | Preussische Bergwerks Und Huet | Process for sealing permeable rock layers, especially in oil wells, against gas or water |
-
1958
- 1958-07-24 DE DED28604A patent/DE1099954B/en active Pending
-
1959
- 1959-04-27 CH CH7259759A patent/CH397545A/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE857936C (en) * | 1951-10-02 | 1952-12-04 | Preussische Bergwerks Und Huet | Process for sealing permeable rock layers, especially in oil wells, against gas or water |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1268554B (en) * | 1964-10-21 | 1968-05-16 | Sanyo Chemical Industry Compan | Soil consolidator |
DE1567776B1 (en) * | 1965-12-28 | 1971-07-15 | Progil | Process for stabilizing and consolidating soils with the aid of an aqueous silicate solution with the addition of an ester of an organic acid as a gel-forming agent |
Also Published As
Publication number | Publication date |
---|---|
CH397545A (en) | 1965-08-15 |
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