eprintid: 52306 rev_number: 28 eprint_status: archive userid: 11598 dir: disk0/00/05/23/06 datestamp: 2025-07-22 02:38:23 lastmod: 2025-07-22 02:38:23 status_changed: 2025-07-22 02:38:23 type: thesis metadata_visibility: show creators_name: Mutiara Aini, Raina creators_id: 3336210055 contributors_type: http://www.loc.gov/loc.terms/relators/THS contributors_type: http://www.loc.gov/loc.terms/relators/THS contributors_name: Mina, Enden contributors_name: Indera Kusuma, Rama contributors_id: 197305062006042001 contributors_id: 198108222006041001 corp_creators: UNIVERSITAS SULTAN AGENG TIRTAYASA corp_creators: FAKULTAS TEKNIK corp_creators: JURUSAN TEKNIK SIPIL title: PENGARUH PENAMBAHAN GEOPOLIMER BERBAHAN FLY ASH PADA STABILISASI TANAH DASAR TERHADAP ANALISIS NILAI KUAT TEKAN BEBAS (Studi Kasus: Jalan Raya Sobang, Kecamatan Sobang, Pandeglang, Banten) ispublished: pub subjects: QE subjects: TA divisions: Sipil full_text_status: restricted keywords: soil, fly ash, geopolymer, UCT, molarity abstract: Subgrade soils with low bearing capacity present significant challenges in infrastructure development, as observed at Jalan Raya Sobang, Kabupaten Pandeglang, Banten, which shows a field CBR value of 2,25%. This study aims to evaluate the effect of adding fly ash-based geopolymer on subgrade stabilization, particularly in improving unconfined compressive strength (qu). A series of tests was conducted to analyze the physical properties and qu values. Stabilization was performed by adding 15% fly ash and an alkaline activator solution (NaOH and Na₂SiO₃) with varying NaOH molarities of 8M, 12M, and 15M, and an S/L ratio of 1/2,5. Tests were performed after 0, 7, 14, and 28 days of curing. The native soil was classified as OH (organic clay with medium to high plasticity) with a plasticity index of 18,3%. The addition of fly ash-based geopolymer reduced the PI to 12,2% for B1 (85% soil, 15% FA, 8M NaOH), 8,6% for B2 (85% soil, 15% FA, 12M NaOH), and 7,6% for B3 (85% soil, 15% FA, 15M NaOH). The qu values increased to 15,528 kg/cm² for B1, 18,812 kg/cm² for B2, and 12,46 kg/cm² for B3, with the optimum value observed in B2 after 28 days of curing. date: 2025-07-21 date_type: published pages: 228 institution: Fakultas Teknik Universitas Sultan Ageng Tirtayasa department: TEKNIK SIPIL thesis_type: sarjana thesis_name: sarjana citation: Mutiara Aini, Raina (2025) PENGARUH PENAMBAHAN GEOPOLIMER BERBAHAN FLY ASH PADA STABILISASI TANAH DASAR TERHADAP ANALISIS NILAI KUAT TEKAN BEBAS (Studi Kasus: Jalan Raya Sobang, Kecamatan Sobang, Pandeglang, Banten). S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa. document_url: https://eprints.untirta.ac.id/52306/3/RAINA%20MUTIARA%20AINI_3336210055_Fulltext.pdf document_url: https://eprints.untirta.ac.id/52306/5/RAINA%20MUTIARA%20AINI_3336210055_01.pdf document_url: https://eprints.untirta.ac.id/52306/1/RAINA%20MUTIARA%20AINI_3336210055_02.pdf document_url: https://eprints.untirta.ac.id/52306/4/RAINA%20MUTIARA%20AINI_3336210055_03.pdf document_url: https://eprints.untirta.ac.id/52306/2/RAINA%20MUTIARA%20AINI_3336210055_04.pdf document_url: https://eprints.untirta.ac.id/52306/8/RAINA%20MUTIARA%20AINI_3336210055_05.pdf document_url: https://eprints.untirta.ac.id/52306/6/RAINA%20MUTIARA%20AINI_3336210055_06.pdf document_url: https://eprints.untirta.ac.id/52306/7/RAINA%20MUTIARA%20AINI_3336210055_Ref.pdf document_url: https://eprints.untirta.ac.id/52306/14/RAINA%20MUTIARA%20AINI_3336210055_Lamp.pdf document_url: https://eprints.untirta.ac.id/52306/9/RAINA%20MUTIARA%20AINI_3336210055_CP.pdf