İnce Kumlu Mühendislik Dolgularının Fiziksel Özellikleri Üzerine Pozzolan-Kireç Stabilizasyonunun Değerlendirilmesi

Year 2020, Volume: 8 Issue: 1, 80 - 90, 05.03.2020

Babak Jamhırı

https://doi.org/10.36306/konjes.698634

Cited By: 2

Abstract

Gevşemiş kumlar, mukavemet eksikliğinden dolayı depreme karşı hassastır ve doymuş kumlar bile sıvılaştırılabilir. Gevşek ince kumlardaki sorunları ele almak için, bu makalede, zemin iyileştirme için pozzolanik yöntemlerden biri olan hidratlı kireç ve zeolit, ince kumlu zeminlerin sıkıştırma özelliklerini geliştirmek için birlikte kullanılmıştır. İnce kumlu zeminlerin pratik olarak sıkıştırılmasına yardımcı olmak için, işlenmiş zeminin yüzde 3,4 ve 5 oranında kireç ve yüzde 8,10 ve 12 oranında zeolitle birlikte fiziksel özellikleri incelenmiştir. Maksimum kuru yoğunluğu ve indeks boşluk oranlarını elde etmek için bir seri Proctor testi, zeminin Özgül ağırlığı ve asgari endeksi yoğunluk yapılmıştır. Ek olarak, zeolitinhidrasyon hızı, hidrasyon işleminin etkin süresini ölçmek için modellenmiştir. Sonuçlar, zeolit uygulamasının daha iyi bir sıkıştırma özelliğine yol açtığını, ancak yalnızca kireçle muamele edilmiş topraklarda herhangi bir gelişme olmadığını göstermiştir.

Keywords

Zemin iyileştirme, Zeolit, Hidrasyon modeli, Arrhenius denklemi

EVALUATION OF POZZOLAN-LIME STABILIZATION ON PHYSICAL PROPERTIES OF FINE SANDY ENGINEERING FILLS

Abstract

Loose sands are susceptible to the earthquake due to lack of strength and even saturated sands may experience liquefaction. To address problems in loose fine sands, in this article, hydrated lime and zeolite as one of the pozzolanic methods for soil improvement are instrumented together to improve fine sandy soils’ compaction properties. To provide aid for practical compaction of fine sandy soils, physical properties of treated soils with 3, 4 and 5 percent of lime and 8, 10 and 12 percent of zeolite are investigated. A series of Proctor tests, Specific Gravity of soil’s solids and Minimum Index Density was performed to obtain maximum dry density and index void ratios. Additionally, the hydration rate of zeolite is modeled by Arrhenius method to quantify the effective duration of hydration process. Results showed that application of zeolite led to a better compaction property while treated soils only with lime did not show any improvement.

Keywords

Soil improvement, Zeolite, Simulation of hydration, Arrhenius equation

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