Bu çalışmada yüksek plastisiteli kile, volkanik tüf ve amorf silika ağırlıkça belirli oranlarda karıştırılmış ve bu karışım numunelerinin mühendislik özelliklerinin değişimi incelenmiştir. Daha sonra kile %5 oranında kireç ilave edilerek volkanik tüf ve amorf silika katkılı deneyler tekrarlanmıştır. Çalışmada kıvam limitleri, standart kompaksiyon deneyleri yapıldıktan sonra optimum su muhtevalarında ve maksimum kuru birim hacim ağırlıklarında hazırlanan numuneler üzerinde serbest basınç deneyleri ve sabit hacimli şişme basıncı deneyleri yapılmıştır. Serbest basınç deneyi yapılmış olan numuneler üzerinde SEM analizleri yürütülerek görüntüleri alınmıştır. Deneyler sonucunda volkanik tüf katkısının kilin serbest basınç mukavemetini bir miktar arttırdığı, şişme basıncının önce azaldığı, daha sonra arttığı görülmüştür. Kireç ve volkanik tüf katkılı deneylerde ise serbest basınç mukavemetinin daha fazla arttığı, şişme basıncının daha fazla azaldığı belirlenmiştir. Kireç ve amorf silika katkılı deneylerde ise serbest basınç mukavemetinin daha fazla arttığı, şişme basıncının daha fazla azaldığı belirlenmiştir. Volkanik tüf ve amorf silika katkıları karşılaştırılırsa aynı orandaki amorf silika katkısının serbest basınç mukavemetinin artmasında daha etkili olurken, şişme basıncının azalmasında ise volkanik tüf daha etkili olmaktadır.
In this study, high-plastic cells, volcanic pipe and amorphic silica were mixed in a certain rate of weight and the change in the engineering characteristics of these mixture samples was studied. Subsequently, the experiment with volcanic pistol and amorphic silic was repeated, adding 5% of the cylinder. Free pressure experiments on samples prepared in the low limits, standard compacting experiments and maximum dry unit volume weights, and fixed volume swelling pressure experiments were conducted. Images were taken by conducting SEM analyses on the samples that were performed on free pressure experiment. The results of the experiments have shown that the contribution of volcanic weapon increases the freedom of pressure strength of the clay a bit, the swelling pressure first decreases, then increases. In the experiments involving firearms and volcanic weapons, the freedom pressure strength increased more and the swelling pressure decreased more. In the experiments involving silic and amorphic silic, the freedom pressure strength increased, and the swelling pressure decreased. When compared with volcanic pipe and amorphic silica contributions, the same proportion of amorphic silica contributions is more effective in increasing the freedom of pressure strength, while the volcanic pipe is more effective in reducing the swelling pressure.
In this study, volcanic tuff and amorphous silica in a certain ratios mixture with clay and engineering properties of mixed materials investigated. Then, lime was added at rate of 5% and experiments of added volcanic tuff and amorphous silica were repeated. After operating consistency limits and standard compaction tests, unconfined pressure tests and constant volume swelling tests were made on specimens prepared at optimum water content and maximum dry density. As a result of experiments, it was seen that the volcanic tuff addition increased a little to unconfined pressure, constant volume swelling pressure decreased before, then increased. SEM analyzes were carried out on the samples subjected to unconfined pressure test and images were taken. It was determined that the unconfined pressure more increased and constant volume swelling pressure more decreased in lime and volcanic tuff mixture samples. It was determined that unconfined pressure more increased and constant volume swelling pressure more decreased in lime and amorphous silica mixture samples. When the volcanic tuff and amorphous silica mixtures are compared in the same ratio amorphous silica more effective for increasing unconfined pressure, volcanic tuff more effective for decreasing swelling pressure.
Alan : Mimarlık, Planlama ve Tasarım; Mühendislik
Dergi Türü : Uluslararası
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