Yıl 2020, Cilt 8 , Sayı 1, Sayfalar 347 - 362 2020-01-31

Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer
Nano Silika ve Mikro Silika Ferrokrom Cürufu Bazlı Geopolimerlerin Mekanik Özelliklerine Etkisi

Mehrzad MOHABBI [1]


Considering global trends in sustainable and green development as well as the major drawbacks of conventional hydraulic cement, accelerate attempt for finding a suitable alternative and likely cause further development of geopolymeric cements in future. Influences of Nano scale Materials in improving the mechanical properties of ordinary Portland cement have been obviously proved. Despite the widespread use of these materials in different fields of science, for instance, chemicals engineering, materials engineering and even ordinary Portland cement, the effect of Nano scale materials in geopolymers has not been investigated deservedly. The purpose of this study is creating bridges to mitigate these gaps and shortcomings. Very fine silica particles (micro and Nano-silica) effects in ferrochrome slag based geopolymer have been evaluated in this research. Elazığ ferrochrome slag was used as the main aluminosilicate source and then it was blended with Nano silica or silica fume in little amounts in order to accelerate geopolymerization. Nano-silica and silica fume have been used at 2,4,6,8 and 10% of total binder weight in this study due to probe fine silica effect on the mechanical specification of produced material such as compressive strength, Static modulus of elasticity, Tensile Strength and microstructural change. The experimental results show all of these mention mechanical properties have been improved with adding fine silica in geopolymer mixes in optimum percentage of total binder weight. The best percentage of fine silica partial replacement instead of FS is 6% at all of silica fume and three Nano particle size (15, 30 and 45 nm). SEM images assessment demonstrated homogenous and denser texture with acceptable chemical bonds improvements for samples with optimum Nano-silica dosage. Compressive strength increase can be explained by densification of the matrix texture by using of Nano-silica and silica fume at optimum dosage.

Geleneksel çimentoların dezavantajları uluslararası sürdürülebilir ve yeşil kalkınma planları üzerinde yoğun talep yaşanmasına neden olmaktadır. Geopolimer malzemenin daha fazla geliştirilmesi veya alternatif malzemenin araştırılmasına dayalı çalışmaların gelecekte hızlanması beklenmektedir. Sıklıkla kullanılan Portland çimentosunun mekanik özelliklerinin geliştirilmesinde nano ölçekli malzemelerin katkısı literatürde kanıtlanmıştır. Nano ölçekli silika malzemeler, kimya ve malzeme mühendisliği gibi farklı bilim dallarında ve hatta sıradan Portland çimentosu üretiminde bile yoğun kullanılmasına ve araştırılmasına rağmen geopolimer üretiminde yeterince incelenmemiştir. Bu çalışmanın amacı bu konudaki boşlukları azaltmak ve önceden elde edilen bilgileri geopolimerler üzerine aktarmaktır. Bu çalışma esnasında nano ve mikro ölçekli silis malzemelerin ferrokrom cüruf bazlı geopolimerler üzerindeki etkisi değerlendirilmiştir. Elazığ ferrokrom cürufu alümino-silis kaynağı olarak bu çalışmada kullanılmıştır. Geopolimerleşme sürecini hızlandırmak için Nano-silis ve silis dumanı cüruf ağırlığının %2, %4, %6, %8 ve %10 oranlarında kullanılmıştır ve üretilen malzemelerin basınç ile çekme mukavemeti, elastisite modülü ve mikro yapısı üzerindeki etkisi incelenmiştir. Deney sonuçlarına göre, geopolimer karışıma uygun miktarda ince silis malzemesinin eklenmesiyle malzemenin yukarıda bahsedilen mekanik özelliklerinde iyileşme meydana gelmiştir. Ferrokrom cüruf yerine farklı mikro ve nano boyutlarında (15, 30 ve 45 nm) silis kullanım oranı optimum %6 olarak belirlenmiştir. Numunelerde uygun değerde Nano-silis kullanımı, malzemenin kimyasal bağlarında iyileşme, homojen ve daha yoğun dokuya sahip olmasını sağlamıştır ve SEM görüntülerinde bu durum açıkça görülmektedir. Basınç mukavemetinin artışının, Nano-silis ve silis dumanının uygun değerde kullanılması sonucunda malzemenin dokusunun yoğunlaşmasından ve kimyasal bağlarının iyileşmesinden kaynaklandığı düşünülmektedir.

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Birincil Dil en
Konular Mühendislik
Bölüm Makaleler
Yazarlar

Orcid: 0000-0001-8584-1658
Yazar: Mehrzad MOHABBI (Sorumlu Yazar)
Kurum: BINGOL UNIVERSITY, FACULTY OF ENGINEERING AND ARCHITECTURE, DEPARTMENT OF CIVIL ENGINEERING
Ülke: Turkey


Teşekkür The author gratefully acknowledge the Elazıg Ferrochrome plant for providing Ferrochrome Slag.
Tarihler

Yayımlanma Tarihi : 31 Ocak 2020

Bibtex @araştırma makalesi { dubited587321, journal = {Düzce Üniversitesi Bilim ve Teknoloji Dergisi}, issn = {}, eissn = {2148-2446}, address = {}, publisher = {Düzce Üniversitesi}, year = {2020}, volume = {8}, pages = {347 - 362}, doi = {10.29130/dubited.587321}, title = {Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer}, key = {cite}, author = {MOHABBI, Mehrzad} }
APA MOHABBI, M . (2020). Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer. Düzce Üniversitesi Bilim ve Teknoloji Dergisi , 8 (1) , 347-362 . DOI: 10.29130/dubited.587321
MLA MOHABBI, M . "Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer". Düzce Üniversitesi Bilim ve Teknoloji Dergisi 8 (2020 ): 347-362 <https://dergipark.org.tr/tr/pub/dubited/issue/49725/587321>
Chicago MOHABBI, M . "Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer". Düzce Üniversitesi Bilim ve Teknoloji Dergisi 8 (2020 ): 347-362
RIS TY - JOUR T1 - Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer AU - Mehrzad MOHABBI Y1 - 2020 PY - 2020 N1 - doi: 10.29130/dubited.587321 DO - 10.29130/dubited.587321 T2 - Düzce Üniversitesi Bilim ve Teknoloji Dergisi JF - Journal JO - JOR SP - 347 EP - 362 VL - 8 IS - 1 SN - -2148-2446 M3 - doi: 10.29130/dubited.587321 UR - https://doi.org/10.29130/dubited.587321 Y2 - 2019 ER -
EndNote %0 Düzce Üniversitesi Bilim ve Teknoloji Dergisi Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer %A Mehrzad MOHABBI %T Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer %D 2020 %J Düzce Üniversitesi Bilim ve Teknoloji Dergisi %P -2148-2446 %V 8 %N 1 %R doi: 10.29130/dubited.587321 %U 10.29130/dubited.587321
ISNAD MOHABBI, Mehrzad . "Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer". Düzce Üniversitesi Bilim ve Teknoloji Dergisi 8 / 1 (Ocak 2020): 347-362 . https://doi.org/10.29130/dubited.587321
AMA MOHABBI M . Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer. DÜBİTED. 2020; 8(1): 347-362.
Vancouver MOHABBI M . Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer. Düzce Üniversitesi Bilim ve Teknoloji Dergisi. 2020; 8(1): 362-347.