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    • Volume 10 No. 2, September 2014
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    The Investigation of Ucs and Permeability of Miri Sragen Soils as The Subtitution of Difficult Soils

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    Date
    2014-09
    Author
    Susanto, Agus
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    Abstract
    In the establishing of a construction it is often found difficult soils recognized by low bearing capacity and high swelling. This condition is not beneficial for the construction. A simple solution to overcome this problem is to replace the difficult soil with better ones. Sragen people often use soils from Miri as substitution of their difficult soils before building a house. Miri soils are often used to substitute difficult soils as highway subgrade. These soils have specific characteristics, that is in the dry condition look like sands, but in the wet one they have high stickness. So far there is no a research about this soils. Therefore, it is necessary to conduct a researh to learn physical and mechanical characterictics of these soils. This research examines soils physical characterictics, unconfined compression strength (UCS) and permeability of Miri soils. The research methods used in this research involve several test covering properties test, unconfined compression test and permeability test according to ASTM standard. The result of the research shows that Miri soils have specific gravity 2.63 liquid limit 62.85% shrinkage limit 20.06% and plasticity index 27.73%. According to USCS classification this soils are classified in SC group and according to AASHTO classification they are classified in A-7-5(7) group. The value of UCS on 90% γd max dry 3.815 kg/cm2, 95% γd max dry 5.430 kg/cm2, γd max 5.815 kg/cm2, 95% γd max wet 2.060 kg/cm2 and 90% γd max wet 1.425 kg/cm2. The value of permeability on 90% γd max dry 1.458 x 10-4cm/dt, 95% γd max dry 7.773 x 10-5 cm/dt, γd max 4.453 x 10-5 cm/dt , 95% γd max wet 2.246 x 10-5cm/dt dan 90% γd max wet 4.211 x 10-6kg/cm2.
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    http://hdl.handle.net/11617/5190
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    • Volume 10 No. 2, September 2014

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