The Effect of Gradation and Grain-Size Properties of Fine Aggregate on the Building Mortars


Mehmetoğulları E., Güneyli H. , Karahan S.

Production Engineering Archives, cilt.26, sa.3, ss.121-126, 2020 (Diğer Kurumların Hakemli Dergileri)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26 Konu: 3
  • Basım Tarihi: 2020
  • Doi Numarası: 10.30657/pea.2020.26.23
  • Dergi Adı: Production Engineering Archives
  • Sayfa Sayıları: ss.121-126

Özet

This work is about the effect of fine aggregate properties on the physicomechanical characteristics of hardened mortars. The results indicated that the increase in grain-size of fine aggregate increases the bulk density of hardened mortars. The strength of mortars including limestone fine aggregate is higher than that of the silica-sand. Regardless of the aggregate origin, the strength of the mortars with well-graded fine aggregate for all grain-size is greater than of with uniform fine aggregate. This indicates that grading of fine aggregate increases the strength, while uniformity decreases it. The strength of mortars with well-graded fine aggregate increases as the grain-size increases. Re-gardless of the aggregate origin, the strength of mortars with uniform fine aggregate increases with increasing grain-size until the grain-size range of 425-1000 μm, but after this range it decreases with increasing grain-size. The thermal conductivity increases with the increase in the grain-size. Notedly, the relationship between thermal conductivity and maximum grain-size of well-graded fine aggre-gate has a very strong positive correlation. Further, the thermal conductivity value for mortars formed with uniform fine limestone aggregate is minimum at the grain-size range of 425-1000 μm, while it has greatest values close together from this grain-size range