Mehrzad Mohabbi Yadollahi, Sadık VAROLGÜNEŞ, Fethi İŞSEVER

Na2O, silika modülü, su/bağlayıcı oranı ve yaşlanmanın cüruf tabanlı geopolimerlerin basınç mukavemetinde olan etkileri

Geopolimerler, Portland çimentosu ve Portland çimentolu betonlar için puzolanların aktivasyonundan üretilen alternatif bağlayıcılardır. Malzeme özelliklerinin güçlendirilmesi, çevre dostu olması ve çimento yerine üretilebilmesi için bu çalışmada ferrokrom cürufu tabanlı geopolimerinin mekanik özellikleri araştırılmıştır. Bu çalışmada, ferrokrom cürufunu aktive edebilmek için, Na2O yüzdesi, silika modülü ve su/bağlayıcı oranlarına göre dokuz farklı seride geopolimer karışımı hazırlanmıştır. Test sonuçları, üretilen geopolimerlerin basınç dayanımının yeterince yüksek olduğunu ve yapısal bir malzeme olarak kullanılabileceğini göstermiştir.

Anahtar Kelimeler:

Ferrochrome Slag, geopolymer cement, alkali-activator

The effects of Na2O, silica modulus, water/binder and aging on compressive strength of ferrochrome slag based geopolymers

Geopolymers are alternatives for ordinary Portland cement concrete that are made from pozzolans activation. To enhance material greenness and produce alternative binders as a geopolymer, mechanical properties of ferrochrome slag geopolymer has been investigated in this study and to identify the best geopolymer mix ratios, varying silica modulus , water/binder and Na2O content have been investigated. Hence nine series of geopolymer pastes differing in Na2O content, silica modulus and w/b ratios were manufactured to activating ferrochrome slag in this study. Test results indicated that the produced geopolymers compressive strength were high enough and can be used as a structural material.

Keywords:

Ferrochrome slag, geopolymer cement, alkali-activator,

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