ALAKLIRESISTENT GLASFIBER SAMT MED SADANA FIBRER ARMERAD CEMENTPRODUKT

Alkali-resistant glass fibres for use as reinforcement in cementitious products are formed from a composition comprising, in weight percentages: -SiO2 55 to 75% -R2O 11 to 23% -ZrO2 6 to 22% -Cr2O3 0.1 to 1% -Al2O3 0.1 to 7% -Rare earth oxides + TiO2 0.5 to 16% - where R2O is any one or more of Na2O...

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Bibliographische Detailangaben
Hauptverfasser:	K M FYLES, P SHORROCK
Format:	Patent
Sprache:	swe
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS LIME, MAGNESIA METALLURGY MINERAL OR SLAG WOOL REFRACTORIES SLAG SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	Alkali-resistant glass fibres for use as reinforcement in cementitious products are formed from a composition comprising, in weight percentages: -SiO2 55 to 75% -R2O 11 to 23% -ZrO2 6 to 22% -Cr2O3 0.1 to 1% -Al2O3 0.1 to 7% -Rare earth oxides + TiO2 0.5 to 16% - where R2O is any one or more of Na2O, K2O or Li2O, the content of TiO2 does not exceed 10%, and the total of the components recited above amounts to at least 88% by weight of the glass, the glass having been melted under non-oxidizing conditions such that all or a substantial proportion of the chromium in the glass is in the trivalent state. Cementitious products incorporating such fibres, e.g. in a proportion of 3 to 6 weight %, can be made using a Magnani-type asbestos cement machine or by a "spray-up" method.