ESTD PERPUSTAKAAN UNTAD
ESTD PERPUSTAKAAN UNTAD
| JudulStabilisasi Tanah Pasir terlikuifaksi Dengan Campuran Agarosa dan Sodium Silicate |
| Nama: MUHAMMAD NOVRIANSA KARNAWAN |
| Tahun: 2025 |
| Abstrak Liquefaction is the event where loose sandy soil layers lose their shear strength drastically due to an increase in pore water pressure caused by cyclic loading from earthquake forces or due to low bearing capacity of the soil. Therefore, soil improvement is needed to stabilize the soil so that it does not fail. One of the materials that can be used in an effort to stabilize the soil is by adding Agarose and Sodium Silicate. The purpose of this study is to determine the effect of the addition of agarose and sodium silicate on soil stabilization, the composition of the mixture that can provide maximum shear stress and how long it takes to reach maximum shear stress. In this study the soil came from the village of Jono Oge, used agarose at 1%, 3% and 5% of the mass of water and sodium silicate at 2.5% and fine grains at 35% of the dry weight, in addition to curing for 1 day, 3 days, 7 days, 21 days, and 28 days and samples without treatment. The samples were tested using a direct shear device. The results showed an increase in the shear stress value of the sample according to the curing time of 1 to 28 days. The maximum shear stress value was obtained in the composition of 5% agarose + 2.5% sodium silicate with a value of 2.147 kg/cm2 while for the untreated sample it was 0.108 kg/cm2. Keywords: Soil Improvement, Agarose, Sodium Silicate, Shear Stress, Direct Shear |