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All Journal Journal of Civil Engineering PINISI Discretion Review TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Seminar Nasional Pengabdian Kepada Masyarakat INOVASI: Jurnal Hasil Pengabdian Masyarakat Jurnal Teknik Sipil Macca JTEKSIL Jurnal Kemitraan Masyarakat
Ibrahim, Zulfadli
Prodi Teknik Sipil Bangunan Gedung, Fakultas Teknik, Universitas Negeri Makassar, Indonesia
Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Transportation Other

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Analisis Poisson Ratio dan Ketahanan Deformasi Campuran AC-WC Subtitusi Pasir Silika Ibrahim, Zulfadli; Said, Lambang Basri; Alifuddin, Andi
Jurnal Teknik Sipil MACCA Vol. 6 No. 1 (2021): Jurnal Teknik Sipil MACCA
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/x6z78m70

Abstract

Perkembangan wilayah dan kota di Indonesia terus meningkat sejalan dengan pertumbuhan transportasi sehingga menambah beban lalu lintas. Hal ini berimplikasi terhadap kerusakan perkerasan jalan. Penelitian terkait dilakukan untuk meningkatkan kinerja perkerasan jalan, salah satunya penggunaan material alternatif, yaitu pasir silika. Diharapkan pasir silika mampu meningkatkan kinerja dan ketahanan deformasi campuran AC-WC. Tujuan dari penelitian ini adalah untuk menganalisis pengaruh variasi pasir silika pada campuran AC-WC terhadap nilai poisson ratio dan tingkat ketahanan deformasi campuran. Pengujian dilakukan dengan alat uji Indirect Tensile Strength dan alat uji Wheel Tracking Machine. Dari hasil pengujian diperoleh nilai kuat tarik, poisson ratio, stabilitas dinamis, dan laju deformasi campuran ditunjukkan pada masing-masing variasi pasir silika dengan campuran KAO 5,8%, KAO Interval 4,8%, dan KAO Interval 6,8%. Nilai kuat tarik dan poisson ratio tertinggi ditunjukkan pada campuran KAO 5,8% dengan pasir silika 15% sebesar 83960,15 Kpa dan 0,721. Campuran dengan ketahanan deformasi terbaik ditunjukkan pada campuran pasir silika 15% dengan KAO 5,8%, dengan stabilitas dinamis (DS) tertinggi sebesar 750 lintasan/mm dan laju deformasi (RD) terendah sebesar 0,028 mm/menit.
Investigation of the Plasticity and Bearing Capacity of Beach Sand-Stabilized Clay under Different Soaking Durations Annisa, Humairah; Ibrahim, Zulfadli; Yunus, Ilham; Fitriyanti; Basri, Muh. Subri
Jurnal Teknik Sipil MACCA Vol. 10 No. 3 (2025): Jurnal Teknik Sipil MACCA (OKTOBER 2025)
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/an4yb773

Abstract

Clay soils are widely recognized for their unfavorable geotechnical properties, including high plasticity and low bearing capacity, which often compromise the performance of subgrades and foundations. Conventional stabilizers such as cement and lime are effective but limited by cost and environmental concerns. Beach sand with its non-plasticity, density, and high internal friction angle, offers potential as a natural stabilizer. This study investigates the stabilization of clay soil using Kupa beach sand (KBS) under various soaking durations. The evaluation focuses on compaction and CBR tests to determine the bearing capacity, as well as Atterberg limit tests to assess the plasticity of the stabilized samples. The findings show that incorporating 30% Kupa beach sand optimally improves engineering properties, reducing the Plasticity Index (PI) from 40,94% to 6,18% and significantly increasing CBR value from 7,638% (KBS0%) to 38,227% (KBS30%) under unsoaked conditions. Although prolonged soaking reduced CBR values due to weakened particle bonding, the stabilized mixture retained higher CBR value (20,672%) than untreated clay (3,546%) after 21 days, indicating durability under saturated conditions. These results confirm that beach sand effectively decreases plasticity, enhances strength, and mitigates moisture susceptibility.
Co-Authors Afiah, Indah Nur Afiah, Indah Nur Andi Alifuddin Andi Firman Muhibuddin Annisa, Humairah Anwar, Andi Ratu ayuashari Ashabul Kahfi Susanto Basri, Muh. Subri Dewi Triantini Fitriyanti Indah Nur Afiah Irawanda, Gita Ivan Fachrul Marsha Lambang Basri Said Lambang Basri Said Madiana Ali, Aisyah Marsa, Ivan Fachrul Mentari S Sitorus Mentari S. Sitorus Misbahuddin, Azizah Fauziah Muhammad Ihsan Zulfikar Muhibuddin, Andi Firman Muhibuddin, Andi Firman Muis, Ulmiah Saragi, Alexander Adrian Shiber, Nahridzah Mahjubuh Sitorus, Mentari S. Sitorus, Mentari Septanya Syam, Sriwidayani Yunus, Ilham