An experimental study on optimum usage of GGBS for the compressive strength of concrete


Oner A., Akyuz S.

CEMENT & CONCRETE COMPOSITES, cilt.29, ss.505-514, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 29 Konu: 6
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.cemconcomp.2007.01.001
  • Dergi Adı: CEMENT & CONCRETE COMPOSITES
  • Sayfa Sayıları: ss.505-514

Özet

This paper presents a laboratory investigation on optimum level of ground granulated blast-furnace slag (GGBS) on the compressive strength of concrete. GGBS was added according to the partial replacement method in all mixtures. A total of 32 mixtures were prepared in four groups according to their binder content. Eight mixes were prepared as control mixtures with 175, 210, 245 and 280 kg/m(3) cement content in order to calculate the Bolomey and Feret coefficients (K-B, K-F). For each group 175, 210, 245 and 280 kg/m(3) dosages were determined as initial dosages, which were obtained by removing 30 percent of the cement content of control concretes with 250, 300, 350, and 400 kg/m(3) dosages. Test concretes were obtained by adding GGBS to concretes in an amount equivalent to approximately 0%, 15%, 30%, 50%, 70%, 90% and 110% of cement contents of control concretes with 250, 300, 350 and 400 kg/m(3) dosages. All specimens were moist cured for 7, 14, 28, 63, 119, 180 and 365 days before compressive strength testing.