LESTARI, NOVI (2025) PENGARUH STABILISASI TANAH LEMPUNG MENGGUNAKAN CAMPURAN GEOPOLIMER BERBASIS GROUND GRANULATED BLAST FURNACE SLAG (GGBFS) TERHADAP NILAI KUAT TEKAN BEBAS (Studi Kasus : Jalan Kampung Pasirmeong Desa Kaungcaang, Kecamatan Cadasari, Kabupaten Pandeglang). S1 thesis, FAKULTAS TEKNIK UNIVERSITAS SULTAN AGENG TIRTAYASA.
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Abstract
In civil engineering, soil plays an important role as a load-bearing medium. However, soil in the field often fails to meet technical requirements and tends to exhibit unstable characteristics. This study aims to determine the classification and physical properties of the soil, as well as the effect of adding geopolymer based on Ground Granulated Blast Furnace Slag (GGBFS) as a stabilization material on unconfined compressive strength (qu). Tests were conducted through soil characterization and unconfined compression tests using an Unconfined Compression Tester (UCT). The samples used were soil mixed with GGBFS-based geopolymer and alkaline activators (Na₂SiO₃ and 12 M NaOH) with a solution ratio of 2.0. GGBFS was added at a fixed proportion of 20%, and solid-to-liquid (S/L) ratios were varied at 1/2, 1/2.5, and 1/3, with curing times of 0, 7, 14, and 28 days. Based on the results, the soil was classified as OH (organic clay with medium to high plasticity), with an initial plasticity index of 18.24%. The addition of geopolymer reduced the plasticity index to a range of 8.63%–9.09%. The unconfined compressive strength significantly increased after 28 days of curing, with the highest value recorded at 28.826 kg/cm² for variation C (S/L 1/2.5), compared to 1.657 kg/cm² for untreated soil. These findings indicate that GGBFS-based geopolymer is effective in enhancing soil strength and overall stability.
| Item Type: | Thesis (S1) | |||||||||
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| Additional Information: | Dalam pekerjaan teknik sipil, tanah berperan penting sebagai media penahan beban. Namun, kondisi tanah di lapangan tidak selalu memenuhi persyaratan teknis dan sering kali memiliki karakteristik yang kurang stabil. Penelitian ini bertujuan untuk mengetahui klasifikasi dan sifat fisik tanah serta pengaruh penambahan geopolimer berbasis Ground Granulated Blast Furnace Slag (GGBFS) sebagai bahan stabilisasi terhadap nilai kuat tekan bebas (qu). Pengujian dilakukan dengan karakterisasi tanah dan uji kuat tekan bebas menggunakan alat Unconfined Compression Tester (UCT). | |||||||||
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TE Highway engineering. Roads and pavements |
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| Divisions: | 03-Fakultas Teknik > 22201-Jurusan Teknik Sipil | |||||||||
| Depositing User: | Novi Lestari Lestari | |||||||||
| Date Deposited: | 08 Aug 2025 02:22 | |||||||||
| Last Modified: | 08 Aug 2025 02:22 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/53779 |
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