Sürdürülebilir Kalkınma Amaçları

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• MakaleAçık Erişim2013Scopus SJRQ3/r/munzur/4357
  Effect of Fly Ash and Silica Fume on compressive strength, sorptivity and carbonation of SCC

  Turk, Kazim; Karatas, Mehmet; Gonen, Tahir

  In this paper, ASTM C 618 Class F Fly Ash (FA) at 25%, 30%, 35% and 40% and Silica Fume (SF) at 5%, 10%, 15% and 20% replacement of Portland Cement (PC) CEM I 42.5 in SCC was used to evaluate the effect of types and quantity of powder additions on compressive strength and permeations properties of SCC. To this end, eight types of SCC were designed, in comparison with Vibrated Traditional Concrete (VTC). The results indicated that SCC specimens with SF15 had the highest compressive strength with 73.87 MPa for 130 days. The sorptivity values of SCC specimens with FA and SF were lower than those of VTC specimens regardless of type and quantity of powder additions. On the other hand, the carbonation resistance of VTC was higher than that of SCC specimens containing both SF and FA for all accelerated carbonation periods. Consequently, it can be said that type and quantity of powder additions had an important effect on the correlation among the compressive strength and permeation properties of SCC.

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  AtıfWoS69·OpenAlex85

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• MakaleYalnız künye2010Scopus SJRQ2/r/munzur/4795
  INFLUENCE OF CURING CONDITIONS AND AGGREGATE TYPE ON MECHANICAL PROPERTIES OF SELF COMPACTING LIGHTWEIGHT CONCRETE

  Gönen, Tahir; Yazicioglu, Salih

  Lightweight concrete has important advantages, especially in terms of earthquakes. Besides, the production of lightweight concrete with lightweight aggregate is a problem, because workability of lightweight concrete is difficult. If self compaction property can be added to the lightweight concrete, this negativity can be removed. In this study, mechanical properties of self compacting lightweight concrete (SCLWC) containing expanded perlite and pumice aggregates were investigated. Moreover, mechanical properties of self compacting (SCC) and lightweight (LC) concrete were investigated by being compared with SCLWC. Powder phase of self compacting lightweight concrete was consisted of CEM I 42.5 N cement type and C class fly ash. Pumice and expanded perlite aggregates were used in aggregate phase. Compressive strength and flexural tensile strength at 7, 28 and 90 days were determined on specimens were cured in water and air at the same ages. Obtained test results showed that SCLWC of 50 MPa compressive strength at 28 days can be produced by the use of lightweight aggregate and this concrete was not effect to curing condition as much as conventional concrete.

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