Atık Mısır Koçanının Jeopolimer Harçta Agrega Olarak Kullanımı

Year 2023, , 713 - 734, 16.12.2023

Kübra Ekiz Barış

https://doi.org/10.30785/mbud.1342696

Abstract

Bu araştırmanın amacı volkanik tüf esaslı jeopolimer harcın özelikleri üzerinde atık mısır koçanı agregası kullanımının etkilerini araştırmaktır. Alüminosilikat kaynağı olarak taş kesim süreci sırasında üretilen atık halde Nevşehir Doğal Puzolanı kullanılmıştır. Alkali aktivatör türü, konsantrasyonu, aktivatör oranı ve kum/mısır koçanı oranının özelikler üzerindeki etkinliği deneysel olarak araştırılmıştır. Çalışma sonuçları Nevşehir Puzolanı’nın jeopolimer harç üretimi için alüminosilikat olarak uygun olduğunu göstermektedir. İdeal aktivatör türü, konsantrasyonu ve aktivatör oranı, en yüksek mekanik özelikleri sağlamasından dolayı, sırasıyla sodyum hidroksit ve sodyum silikat, 10 M ve 2.0’dır. Atık mısır koçanı agregası doğal kum yerine kullanılabilmektedir ve farklı mısır koçanı oranına sahip jeopolimer harçlar geleneksel duvar malzemelerinin performans gereksinimlerini karşılayabilmektedir.

Keywords

Mısır koçanı, atık agrega, doğal puzolan, jeopolimer harç

The Use of Waste Corn Cob as Aggregate in Geopolymer Mortar

Abstract

This research aims to investigate the effects of waste corn cob aggregate on the properties of volcanic tuff-based geopolymer mortar. Nevşehir Pozzolan, which is produced as waste during the stone-cutting process, was used as an aluminosilicate source. The effect of alkali activator type, concentration, activator ratio, and sand-to-corn cob ratio on the properties was experimentally investigated. Study results revealed that waste Nevşehir Pozzolan was a suitable aluminosilicate for the production of geopolymer mortar. The optimum activator type, concentration, and activator ratios were sodium hydroxide with sodium silicate, 10 M, and 2.0, respectively, because they ensured the highest mechanical properties. Waste corn cob aggregate could be used instead of natural sand, and geopolymer mortar with various corn cob contents can meet the performance requirements of conventional wall materials.

Keywords

Corn cob, waste aggregate, natural pozzolan, geopolymer mortar

Thanks

The article complies with national and international research and publication ethics. Ethics Committee approval was not required for the study.

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