Suda dağılmaya karşı duraylılık deney sonuçları ile agregaların fraktal boyutu arasındaki ilişkiler

Yıl 2018, Cilt: 39 Sayı: 2, 89 - 102, 01.09.2018

Kıvanç Zorlu , Saffet Yağız

Öz

Ekonomik değere sahip karbonatlı kayaların bozunmaya karşı duraylılıkları, kullanılabilir olmaları bakımından oldukça önemlidir.
Bu tür kayaların, bozunmaya karşı dirençleri laboratuvar koşullarında suda dağılmaya karşı duraylılık indeksi (SDI) ile belirlenebilmektedir.
SDI deneyleri iki çevrim olarak yürütülmekle birlikte, literatürde çoklu çevrim deneylerine de rastlanmaktadır. Bu
çalışmada, SDI çevrim sayısının, kaya tane şekli üzerindeki etkisinin fraktal geometri yaklaşımı kullanılarak araştırılması amaçlanmaktadır.
Çalışmada, kökenleri, yapısal ve dokusal özellikleri birbirinden farklı yedi çeşit kaya örneği kullanılmıştır. SDI deneyleri
toplam 10 çevrim olarak yürütülmüş ve her çevrim sonrasında tanelerin geometrik değişimleri fraktal boyut değerleri (D) ile ortaya
konmuştur. Sonuç olarak, her çevrim sonunda SDI değeri azalırken, tanelerin ortalama, D, değeri de azalmaktadır. Fraktal boyutlardaki
en belirgin değişim 4. çevrim sonuna kadar elde edilmiş olup, diğer çevrim sonlarındaki değişim ihmal edilebilir düzeydedir.

Anahtar Kelimeler

Fraktal boyut, kireçtaşı, suda dağılmaya karşı duraylılık indeksi (SDI), traverten

Kaynakça

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