CH247102A - Process for increasing the mechanical strength of objects made of electrically insulating concrete. - Google Patents
Process for increasing the mechanical strength of objects made of electrically insulating concrete.Info
- Publication number
- CH247102A CH247102A CH247102DA CH247102A CH 247102 A CH247102 A CH 247102A CH 247102D A CH247102D A CH 247102DA CH 247102 A CH247102 A CH 247102A
- Authority
- CH
- Switzerland
- Prior art keywords
- electrically insulating
- concrete
- embedded
- mechanical strength
- fiber material
- Prior art date
Links
- 239000004567 concrete Substances 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 239000002557 mineral fiber Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 4
- 239000002657 fibrous material Substances 0.000 claims 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000004576 sand Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- -1 gravel Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/22—Glass ; Devitrified glass
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0048—Fibrous materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Description
Verfahren zur Erhöhung der mechanischen Festigkeit von Gegenständen aus elektrisch isolierendem Beton. Die mechanische Festigkeit des sogenann ten Dielektrobetons, eines durch besondere Mischung und Behandlung elektrisch. isolie rend gemachten Betons, lässt oft zu wünschen übrig. Ähnlich wie beim gewöhnlichen Be ton und Mörtel aus Kies, Sand, Zement und Wasser sind besonders die Zug- und Biege- festigkeit,des Dielektrobetons relativ gering;
so dass gewisse Anwendungsgebiete normaler weise verschlossen bleiben. Zweck vorliegen der Erfindung ist es, diesem Übelstande ab zuhelfen und eine Erhöhung der mechani schen Festigkeit von Gegenständen aus elek trisch isolierendem Beton zu erreichen.
Erfindungsgemäss erfolgt dies dadurch, dass in den elektrisch isolierenden Beton elektrisch isolierende Gebilde mit höherer me chanischer Festigkeit als derjenigen des Be tons eingebettet werden. Als Gebilde dieser Art kommen Platten, Streifen oder Stäbe sowie Kompositionen daraus aus gehärtetem Glas oder aus Kunststoffen in Frage. Es können aber auch Fasern, Geflechte oder Gespinste aus Glas oder aus mineralischem Fasermaterial natürlichen Ursprunges, z. B.
Asbest, zur Anwendung kommen. Die elek trischen, chemischen und thermischen Eigen schaften des Werkstoffes des eingebetteten Gebildes und speziell dessen Wärmedehnung werden zweckmässig so gewählt, dass diesel ben den entsprechenden Eigenschaften des Dielektrobetons, in den sie eingebettet wer den, entsprechen bezw. nicht wesentlich von denselben abweichen, und daZ ferner das Einbringen des Betons, dessen Behandlung sowie die Anforderungen an den fertigen Ge genstand ohne Schaden ertragen werden.
Um die mechanische Zugfestigkeit des eingebetteten Gebildes auch bei grösserer Ela tizität und Dehnung als der des Dielektro- betons voll auszunützen, kann die Einfügung des Gebildes in vorgespanntem Zustande er- ,folgen.
Die Einbettung der Platten, Stäbe, Fa sern, Gewebe oder Gespinste usw. kann auch nur an solchen Stellen der Gegenstände aus Dielektrobeton erfolgen,. an denen starke Zug- oder Biegebeanspruchungen auftreten, und zwar in analoger Anordnung, wie die Armierungseisen in armiertem Beton ver legt werden.
Der elektrisch isolierende Beton besteht beispielsweise aus Zement, Kies, Sand, Sili- ziiundioxydsand und Bitumen.
Zu seiner Herstellung kann einem Gemisch von Zement, Kies, Sand und Wasser ein Gemisch von Siliziumdioxydsand und Bitu men zugesetzt werden. Das so erhaltene Ge misch kann in Formen, in welchen die elek trisch isolierenden Gebilde gegebenenfalls als Armierungen angeordnet sind, eingegossen und erhärten gelassen werden.
Process for increasing the mechanical strength of objects made of electrically insulating concrete. The mechanical strength of the so-called dielectric concrete, one electrical through special mixing and treatment. Insulating concrete often leaves a lot to be desired. Similar to ordinary concrete and mortar made from gravel, sand, cement and water, the tensile and flexural strength of dielectric concrete is relatively low;
so that certain areas of application normally remain closed. The purpose of the present invention is to remedy this inconvenience and to achieve an increase in the mechanical strength of objects made of electrically insulating concrete.
According to the invention, this takes place in that electrically insulating structures with a higher mechanical strength than that of the concrete are embedded in the electrically insulating concrete. As structures of this type, plates, strips or rods as well as compositions made of hardened glass or plastics come into question. But it can also fibers, braids or webs made of glass or mineral fiber material of natural origin, z. B.
Asbestos, are used. The electrical, chemical and thermal properties of the material of the embedded structure and especially its thermal expansion are expediently chosen so that the same ben the corresponding properties of the dielectric concrete in which they are embedded correspond respectively. do not differ significantly from the same, and that the placing of the concrete, its treatment and the requirements for the finished object can be endured without damage.
In order to fully utilize the mechanical tensile strength of the embedded structure even with greater elasticity and elongation than that of the dielectric concrete, the structure can be inserted in a pretensioned state.
The embedding of the plates, rods, fibers, fabrics or webs, etc. can also only be done in such places of the objects made of dielectric concrete. where strong tensile or bending stresses occur, in an arrangement analogous to how the reinforcing bars are laid in reinforced concrete.
The electrically insulating concrete consists for example of cement, gravel, sand, silicon dioxide sand and bitumen.
For its production, a mixture of silicon dioxide sand and bitumen can be added to a mixture of cement, gravel, sand and water. The resulting mixture can be poured into molds in which the electrically insulating structures are optionally arranged as reinforcements and allowed to harden.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH247102T | 1943-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH247102A true CH247102A (en) | 1947-02-15 |
Family
ID=4465997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH247102D CH247102A (en) | 1943-05-06 | 1943-05-06 | Process for increasing the mechanical strength of objects made of electrically insulating concrete. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH247102A (en) |
-
1943
- 1943-05-06 CH CH247102D patent/CH247102A/en unknown
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