Improvement of the Durability of GFRC by Silica Fume Treatments


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Title: Improvement of the Durability of GFRC by Silica Fume Treatments

Author(s): A. Bentur

Publication: Special Publication

Volume: 124


Appears on pages(s): 215-232

Keywords: durability; fiber reinforced concretes; glass fibers; performance; silica fume; slurries; Materials Research

Date: 9/1/1990

Treatments of AR glass fibers in silica fume slurry prior to their incorporation in cementitious matrix was found to be an effective means for improving the durability performance of GFRC composites. The improvement was found to be dependent on the extent of penetration of the silica fume particles into the spaces between the filaments during the slurry treatment. In a glass fiber fabric, heavily coated with polymer, the penetration was hindered and therefore the advantage offered by the silica fume treatment was not as great as in continuous glass fiber strands that were more readily wetted by the slurry.