BE380793A - - Google Patents
Info
- Publication number
- BE380793A BE380793A BE380793DA BE380793A BE 380793 A BE380793 A BE 380793A BE 380793D A BE380793D A BE 380793DA BE 380793 A BE380793 A BE 380793A
- Authority
- BE
- Belgium
- Prior art keywords
- cement
- fibers
- flakes
- bodies
- mixed
- Prior art date
Links
- 239000004568 cement Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 229910052904 quartz Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims 1
- 235000015450 Tilia cordata Nutrition 0.000 claims 1
- 235000011941 Tilia x europaea Nutrition 0.000 claims 1
- 239000004571 lime Substances 0.000 claims 1
- 150000004760 silicates Chemical class 0.000 claims 1
- 239000010425 asbestos Substances 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 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
- C04B14/38—Fibrous materials; Whiskers
- C04B14/42—Glass
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Description
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Procédé d'obtention de corps en ciment à forte résistance mécanique.
Pour faire des corps en cimqnt à forte résistance mécanique, on mélange au cimenta ainsi qu'on le sait des
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fibres dtalimante. Toutefois les propriétés de l'amiante rendent difficile la préparation sous certaines conditions; en outre, les usagers sont pour la plus grande partie obligés d'importer cette amiante.
Pour ces raisons, on a déjà essayé de remplacer les fibres d'amiante par des fibres de laitier de hauts-fourneaux que l'on trouve dans le commerce. Les résultats ne sont toutefois pas satisfaisants. Il faut en chercher la cause principalement dans la composition chimique, qui n'est pas favorable à cet emploi, des fibres de laitier de hauts- fourneaux actuellement connues.
Par contre, on a obtenu de très bons résultats, oonformément à la présente invention, en appliquant au lieu de la laine de laitier de hauts fourbeaux connue, une substance riche en silicate, comme par exemple, des fibres de verre'ou de quartz, ces fibres pouvant être remplacées aussi par des paillettes minoes qui peuvent être obtenues, par exemple, sous la forme de petites particules de bulles de verre fondu ayant éclaté. On obtient de bons résultats en ajoutant cette matière au ciment dans la proportion de 1 à 25 %.
Des essais effectués avec des cylindres creux en ciment auquel on a ajouté 12 % de laine de verre, ont donné une résistance à la rupture de 1300 kg alors que les mêmes cylindres creux en ciment avec 12 % de laine de laitier
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n'ont donné qu'une résistance de 390 kg. La résistance à la flexion étant dans la premier cas de 1,99 kg/mm2. dans le deuxième de 0,632 kg/mm2.
Cette matière peut aussi être ajoutée au mortier de ciment ou au béton et ces corps peuvent être faits par Centrifugation avec ou sans seoouage simultané ou par coulée sous pression.
<Desc / Clms Page number 1>
Process for obtaining cement bodies with high mechanical resistance.
To make cimqnt bodies with high mechanical resistance, we mix with cement, as we know
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detalimante fibers. However, the properties of asbestos make preparation difficult under certain conditions; moreover, users are for the most part obliged to import this asbestos.
For these reasons, attempts have already been made to replace asbestos fibers with commercially available blast furnace slag fibers. However, the results are not satisfactory. The cause must be sought mainly in the chemical composition, which is not favorable for this use, of the fibers of slag from blast furnaces currently known.
On the other hand, very good results have been obtained, in accordance with the present invention, by applying instead of the known high fourbeaux slag wool, a substance rich in silicate, such as for example glass fibers or quartz fibers, these fibers can also be replaced by small flakes which can be obtained, for example, in the form of small particles of bubbles of molten glass which have burst. Good results are obtained by adding this material to the cement in the proportion of 1 to 25%.
Tests carried out with hollow cement cylinders to which 12% glass wool was added, gave a breaking strength of 1300 kg while the same hollow cement cylinders with 12% slag wool
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gave only a resistance of 390 kg. The flexural strength in the first case being 1.99 kg / mm2. in the second 0.632 kg / mm2.
This material can also be added to cement mortar or concrete and these bodies can be made by centrifugation with or without simultaneous seoouage or by pressure casting.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
BE380793A true BE380793A (en) |
Family
ID=50470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE380793D BE380793A (en) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE380793A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3070071A1 (en) * | 2015-03-16 | 2016-09-21 | Construction Research & Technology GmbH | A process for forming roughened micron size anisotropic platelets |
-
0
- BE BE380793D patent/BE380793A/fr unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3070071A1 (en) * | 2015-03-16 | 2016-09-21 | Construction Research & Technology GmbH | A process for forming roughened micron size anisotropic platelets |
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