Surface treatment of glass fibers for reinforcing hydraulic...

Details Surface treatment of glass fibers for reinforcing hydraulic... Surface treatment of glass fibers for reinforcing hydraulic...

C - Chemistry, Metallurgy

03

C

149/17, 117/225,

C03C 25/00 (2006.01) C04B 31/06 (1980.01)

Patent

CA 1036436

ABSTRACT OF THE DISCLOSURE Aqueous solutions containing a phosphorus-oxy acid, for example phosphoric acid, or a salt, for example, a phos- phate, or a salt of titanium, zirconium or hafnium are used to form a deposit or coating on the surfaces of glass fibers. Such coatings may be formed by immersing the glass fiber in the solution at an elevated temperature. The coating enhances the alkali corrosion resisting properties of the glass fiber, and the surface-treated glass fibers are particularly useful as a reinforcement in aqueous hydraulic cement mixtures for imparting into the cured or hardened products made therefrom, a physical strength which is stable with the elapse of time.

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