Handayani, Nurul Indah Dwi and , Ir. Renaningsih, MT. (2019) Pemanfaatan Campuran Kapur Dan Abu Sabut Kelapa Sebagai Bahan Stabilisasi Terhadap Kuat Geser Tanah Lempung Kecamatan Sukodono Kabupaten Sragen. Skripsi thesis, Universitas Muhammadiyah Surakarta.
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Abstract
Based on the preliminary test, there was an LL value of 64.85%, PL = 30.84%, SL = 22.34% and PI = 36.00%. Based on the PI value of 36.00% (more than 17%), the soil includes clay with high plasticity, so that soil improvement needs to be done by mechanically stabilizing the soil using 5% lime and coconut coir ash by 2.5%, 5%, 7, 5% and 10% by weight of air dry soil. The tests include physical and mechanical properties of native and mixed soils. Based on the results of physical properties test, the value of water content, liquid limit, plasticity index and percentage pass filter No. 200 experienced a decrease in the increase in the percentage of lime and coconut coir ash, while beret type, plasticity limit, and shrinkage boundary increased. Based on the AASHTO method, native soil and a mixture of lime and coconut coir ash belong to group A-7-5 which is a clay soil material. Based on USCS, native soils are included in the CH group while mixed soils of lime and coconut husk ash are included in the MH group of organic silt soils with high plasticity. Based on the mechanical compaction test with soil shear strength test, the dry volume weight value has increased and the optimum moisture content has decreased, while the soil shear strength test has obtained cohesion and friction angle values in the increase. The highest cohesion value in mixed soil 5% lime and 10% coconut coir ash is 0.569 kg / cm2, while the lowest cohesion value occurs in native soil is 0.482 kg/cm2 and the highest deep friction angle value in mixed soil is 5% lime and 10% ash coconut coir is 16.82°, while the lowest deep friction angle value occurs in native soil which is 10.50°, while the value of soil shear strength increases with each addition of lime and coconut coir ash. The highest shear strength value occurs in a mixture of 5% lime and 10% coconut coir ash that is equal to 0.999 kg/cm2 and the lowest value of shear strength occurs in adli soil is 0.743 kg/cm2.
| Item Type: | Karya ilmiah (Skripsi) |
|---|---|
| Uncontrolled Keywords: | Kuat Geser, Lempung, Kapur, Abu Sabut Kelapa, Kohesi, Sudut Gesek Dalam |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Fakultas Teknik > Teknik Sipil |
| Depositing User: | NURUL INDAH DWI HANDAYANI |
| Date Deposited: | 07 Nov 2019 08:08 |
| Last Modified: | 07 Nov 2019 08:10 |
| URI: | http://eprints.ums.ac.id/id/eprint/78325 |
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