FRC - Rheology, fiber dispersion, and mechanical properties

ÖZYURT ZİHNİOĞLU N., Mason T. O., Shah S. P.

ACI Spring 2006 and Fall 2006 Conventions, Denver, CO, Amerika Birleşik Devletleri, 5 - 09 Kasım 2009, ss.173-182, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Denver, CO
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.173-182
  • Anahtar Kelimeler: AC-impedance spectroscopy, Fiber dispersion, Rheology, Viscosity-modifying agent
  • Boğaziçi Üniversitesi Adresli: Hayır

Özet

Synopsis: The effects of fresh state properties on the fiber dispersion characteristics of fiber-reinforced composites (FRCs) were studied by quantifying fiber segregation. Fresh state properties of concrete mixes were varied using different combinations of a plasticizing agent and viscosity modifier. A self-designed parallel-plate rheometer was used to obtain rheological parameters. Vibration was applied to the specimens and vibration times were varied to understand the effects of vibration on fiber segregation. An electrical characterization method, alternating current-impedance spectroscopy (AC-IS), was used to quantify fiber segregation in specimens. The relationship between fresh state properties and fiber segregation was evaluated.