CH250024A - Process for consolidating and sealing structures and subsoil. - Google Patents
Process for consolidating and sealing structures and subsoil.Info
- Publication number
- CH250024A CH250024A CH250024DA CH250024A CH 250024 A CH250024 A CH 250024A CH 250024D A CH250024D A CH 250024DA CH 250024 A CH250024 A CH 250024A
- Authority
- CH
- Switzerland
- Prior art keywords
- cement
- stabilizer
- subsoil
- consolidating
- dependent
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 13
- 238000007789 sealing Methods 0.000 title claims description 4
- 239000004568 cement Substances 0.000 claims description 14
- 239000003381 stabilizer Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 4
- 238000007596 consolidation process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/10—Cements, e.g. Portland cement
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- 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)
Description
Verfahren zum Verfestigen und Dichten von Bauwerken und Baugrund. Es sind bereits Verfahren bekannt zum Dichten von feinporigem Baugrund durch Injektion von Ton und Chemikalien; diese Verfahren bringen aber keine wesentliche Verfestigung des behandelten Materials, und ihre Anwendung ist mit grossen Kosten ver bunden. Gute Verfestigung lässt sich nur durch Zementinjektionen erreichen.
Da aber der Zement relativ grosse Kornteile enthält, ist bis heute nur die Möglichkeit vorhanden, grobporige Stoffe damit zu verfestigen, wie Kies oder auch Felsklüfte, während die tech nisch wichtige Verfestigung von feinporigem Material, wie poröser Beton und Sand, bis heut nicht möglich war. Das vorliegende Verfahren bezweckt, diese Lücke zuschliessen, und gewährleistet mit der erreichten Ver festigung eine vollkommene Dichtung der damit behandelten Stoffe.
Das Verfahren gemäss der Erfindung ist dadurch gekennzeichnet, dass man in die zu behandelnden Materialien ein Gemisch von Zement und Wasser injiziert, bei welchem wenigstens<B>50%</B> aller Zementteilchen unter 10 ,u sind und wobei der Zement keine Be standteile gröber als 30,u enthält.
Zweckmässig wird dem Zement-Wasser- gernisch ein Stabilisator zugesetzt.
Zur Konsolidierung von Staumauern und Fundamenten teuft man Bohrlöcher in Di- ;,tanzen von 1-3 m, je nach dem Zustand des Materials ab und verwendet ein Gemisch dieses Feinzementes mit Wasser je nach der Aufnahmefähigkeit in zunehmenden Kon- zentrationen von 1 : 5 bis 1 : 1 Zement zu ZVasser. Der angewendete Injektionsdruck kann 1 bis 100 Atm betragen.
Zur Verfestigung und Dichtung von Bau grund werden Bohrlochdistanzen von 0,5 bis 2 m verwendet; die Konzentration der Injek tionsflüssigkeit ist wie vorstehend angegeben und der Druck 1-3 Atm.
Der Stabilisator wird zweckmässig in einer Menge von 0,1-2% des Zement- gewiehtes zugegeben je nach der Art der verschiedenen Zemente oder des zu behan delnden Materials. Als Stabilisatoren kom men Silikatlösungen, Metallsalze, organische Substanzen usw. in Betracht.
Durch vorliegendes Verfahren lassen sich poröse Beton- und Mauerwerk-Konstruktio- nen aller Art, Festgesteine, Lockergesteine (sandige und kiesige Baugründe) auf wirt schaftliche Art verfestigen und dichten.
Process for consolidating and sealing structures and subsoil. Methods are already known for sealing fine-pored subsoil by injecting clay and chemicals; however, these methods do not bring about any substantial consolidation of the treated material, and their use is associated with great costs. Good consolidation can only be achieved through cement injections.
However, since the cement contains relatively large particles, it is still only possible to consolidate coarse-pored materials with it, such as gravel or rock fissures, while the technically important consolidation of fine-pored material such as porous concrete and sand has not been possible until today . The purpose of the present method is to close this gap and, with the solidification achieved, ensures a perfect seal for the substances treated with it.
The method according to the invention is characterized in that a mixture of cement and water is injected into the materials to be treated, in which at least <B> 50% </B> of all cement particles are below 10, u and in which the cement has no constituents coarser than 30, u contains.
A stabilizer is expediently added to the cement-water mixture.
To consolidate dams and foundations, drill holes are sunk in di- ;, from 1-3 m, depending on the condition of the material, and a mixture of this fine cement with water is used in increasing concentrations from 1: 5 to, depending on the absorption capacity 1: 1 cement to ZVasser. The injection pressure used can be 1 to 100 atm.
Borehole distances of 0.5 to 2 m are used to consolidate and seal the building ground; the concentration of the injection liquid is as indicated above and the pressure is 1-3 atm.
The stabilizer is expediently added in an amount of 0.1-2% of the cement weight, depending on the type of the different cements or the material to be treated. Silicate solutions, metal salts, organic substances, etc. can be used as stabilizers.
With this method, porous concrete and masonry constructions of all kinds, solid rock, loose rock (sandy and gravelly building ground) can be consolidated and sealed in an economical way.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH250024T | 1946-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH250024A true CH250024A (en) | 1947-08-15 |
Family
ID=4467907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH250024D CH250024A (en) | 1946-03-27 | 1946-03-27 | Process for consolidating and sealing structures and subsoil. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH250024A (en) |
-
1946
- 1946-03-27 CH CH250024D patent/CH250024A/en unknown
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