THE SHEAR STRENGTH CHARACTERISTIC OF LIME AND FLY-ASH STABILIZED CLAY

Indrawan, Andreas Dhony (2015) THE SHEAR STRENGTH CHARACTERISTIC OF LIME AND FLY-ASH STABILIZED CLAY. S1 thesis, UAJY.

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Abstract

This research investigates the shear strength characteristic of lime and flyash stabilized clay. Research consists of two processes: identifying soil properties and observing shear strength characteristic of soil. Observing shear strength characteristic had done by doing direct shear test. Initially, the optimum values of lime mixture were observed, samples were the soil mixture with 4%, 6%, and 8% of lime content. The optimum percentage of lime was used to create other variation by mix it with certain amount of fly-ash: 10%, 15%, and 20%. Research found that that all samples with 4%, 6%, or 8% of lime content have increasing cohesion value (c) along the time curing periods. In the other hands samples that mixed with 6% Lime and 10% Fly-ash; 6% Lime and 15% Fly-ash; 6% Lime and 20% Fly-ash shows that the cohesion value is decreasing along the time curing periods. Soil samples that mixed with lime only additive have decreasing friction angle value (ɸ) along curing periods but, all samples that added with lime and flyash show the increasing value of friction angle along the time curing. The result of direct shear test shows that sample booth lime only also lime and fly-ash sample indicates the improvement of shear strength (τ). The shear strength of clay which is added by lime mixed with fly ash is provides better result than lime only additive. Result of direct shear concludes that clay with 6% Lime and 15% Flyash content provides optimum value of shear strength (τ) which is reaching 0,629 kg/cm2.

Item Type: Thesis (S1)
Uncontrolled Keywords: Clay, lime, fly-ash, direct shear, cohesion, friction angle, shear strength
Subjects: Civil Engineering > Structure
Divisions: Fakultas Teknik > Teknik Sipil Internasional
Depositing User: Editor UAJY
Date Deposited: 17 Nov 2015 08:05
Last Modified: 17 Nov 2015 08:05
URI: http://e-journal.uajy.ac.id/id/eprint/8374

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