Investigation of Permeability Behavior of Sandy Soils Mixed with Industrial Waste

Öz

It is very important to evaluate the industrial wastes, which have the potential to be reused with new alternative methods. Treatment plant sludges and fly ash are industrial wastes known to have the potential for beneficial reuse. The useful reuse of these industrial wastes will contribute to the economic development of the organizations and the country by reducing environmental pollution, reducing storage costs, reducing the use of limited natural resources and providing new generation materials. The geological origins of the ground and rock environments on which the structure is constructed have a very variable structure and different types of geological materials require different solutions in terms of design. Conventional foundation construction methods are expensive and lose their economy in the buildings to be constructed in areas with poor ground conditions. In recent years, due to the high cost of construction with traditional methods, the numerous problems caused by environmental factors and the difficulties in overcoming them, the use of on-site soil remediation methods on the poor soil has gained importance. In this study, the impermeability behaviors of sludges and fly ash materials of industrial waste drinking water treatment plant were investigated. Within the scope of the study, drinking water treatment sludge and fly ash were added to sand ground in 2%, 4%, 6%, 8%, 10%, 12%, 14%, 16%, 18%, 20%, 22%. The permeability behavior of the prepared mixtures was investigated with the help of small scale model experiments depending on the contribution rates and time. According to the results obtained, it is observed that both industrial waste materials significantly increase the impermeability of sandy soils. Experimental data indicates s that the increases of up to 106 times when industrial waste materials were added at 2% and up to 1691 times when 22% were added.

Anahtar Kelimeler

• Soil Improvement,Waste Recycling,Waste Mud,Fly Ash,Solid Waste Management

Endüstriyel Atık Katkılı Kum Zeminlerin Geçirimsizlik Davranışının Araştırılması

Öz

Yeniden kullanım potansiyeline sahip olan, endüstriyel atıkların yeni alternatif yöntemlerle değerlendirilmesi oldukça önemlidir. Arıtma tesisi çamurları ve uçucu kül faydalı geri kullanım potansiyeli olduğu bilinen endüstriyel atıklardandır. Bu endüstriyel atıkların yararlı yeniden kullanımları, çevresel kirliliğin azaltılması, depolama maliyetlerini düşürülmesi, sınırlı olan doğal kaynakların kullanımının azaltılması ve yeni nesil malzeme sağlanması ile kuruluşların ve ülkenin ekonomik gelişimine katkı sağlayabilecektir. Üzerine yapı inşa edilen zemin ve kaya ortamların jeolojik kökenleri çok değişken bir yapıya sahiptir ve farklı tipteki jeolojik malzemeler tasarım açısından farklı çözümler gerektirir. Zayıf zemin şartlarına sahip sahalarda inşa edilecek yapılarda geleneksel temel inşaatı yöntemleri pahalıya mal olmakta ve ekonomikliğini kaybetmektedir. Bu tür zeminlerde geleneksel yöntemler ile yapılan inşaat maliyetinin yüksek olması, çevre faktörlerinin oluşturduğu sayısız sıkıntılar bulunmaktadır. Günümüzde farklı katkı malzemeleri ile zeminlerin nasıl davranış gösterdiği oldukça önem kazanmıştır. Bu çalışmada, endüstriyel atık olan içme suyu arıtma tesisi çamurları ile uçucu kül malzemelerin kumlu zemin ortamında geçirimsizlik davranışları incelenmiştir. Çalışma kapsamında kum zemine, %2, %4, %6, %8, %10, %12, %14, %16, %18, %20, %22 oranlarında ağırlıkça içme suyu arıtma çamuru ve uçucu kül eklenmiştir. Hazırlanan karışımların geçirimlilik davranışları, küçük ölçekli model deneyler yardımı ile katkı oranlarına ve zamana bağlı olarak araştırılmıştır. Elde edilen sonuçlara göre, her iki endüstriyel atık malzemelerin de kumlu zeminlerde geçirimsizliğini kayda değer oranda artırdığı görülmüştür. Endüstriyel atık malzemelerin %2 oranında katıldığında 106 ve %22 oranında katıldığında ise 1691 kata varan artışlar tespit edilmiştir.

Anahtar Kelimeler

• Zemin İyileştirme,Atık Geri Dönüşümü,Atık Çamur,Uçucu Kül,Katı Atık Yönetimi

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