Relationship Between Undrained Shear Strength with Atterberg Limits of Kaolinite/Bentonite – Quartz Mixtures

Year 2018, Volume: 10 Issue: 3, 92 - 102, 31.12.2018

Eyyüb Karakan , Süleyman Demir

https://doi.org/10.29137/umagd.480150

Cited By: 6

Abstract

The main
purpose of this study was to investigate the relationship between the undrained
shear strength and the Atterberg limits of quartz clay mixtures using the
falling cone test and the casagrande method. As a result, the penetration depth
of the fall cone, which determines the liquid limit close to the value obtained
by the casagrande method, was changed by the presence or absence of fine
grained soils. It was shown that the same clay type with a much higher quartz
content led to smaller undrained shear strength values. The undrained shear
strength value with a small amount of quartz was the lowest; it then increased
with the increase in fine content. The relationship between the undrained shear
strength and the Atterberg limits for all the samples can be divided into three
parts: (1) quartz clay (kaolinite/bentonite) mixtures ratio, (2) type of clay (plasticity;
high - low plasticity), and (3) plastic limit value. Finally, an equation for
the fall cone test used to determine the Atterberg limit of quartz clay
mixtures, was proposed based on the undrained shear strength and initial water
content.

Keywords

Kaolinite, Bentonite, Quartz, Undrained Shear Strength

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