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All Journal Quimica : Jurnal Kimia Sains dan Terapan JMTSS ABDIMU: Jurnal Pengabdian Muhammadiyah
Siregar, Putri Fikadilah
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Religion Chemistry Civil Engineering, Building, Construction & Architecture Education Languange, Linguistic, Communication & Media Social Sciences Transportation Other

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Efek Komposisi NaCl dan Sulfur terhadap Struktur Mikro dan Kekuatan Geser Tanah Pasir Sabilla, Arissa; Rikza; Sinurat, Dian Aswatul; Siregar, Putri Fikadilah; Juanda, Ari; Yosantia, Muhammad Ferah; Muammar, Rajib; Damayanti, Rizki
JURNAL QUIMICA Vol 7 No 2 (2025)
Publisher : Program Studi Kimia, Fakultas Sains dan Teknologi, Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jq.v7i2.13356

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh komposisi campuran garam dapur (NaCl) dan belerang (S) terhadap perubahan struktur mikro serta peningkatan kekuatan geser tanah pasir berlempung (SC). Penelitian menggunakan pendekatan analisis deskriptif berbasis data sekunder dari hasil uji kuat geser langsung (Direct Shear Test) pada tanah pasir yang distabilisasi dengan variasi campuran 6% sulfur dan 6–12% NaCl. Hasil analisis menunjukkan bahwa campuran 6% sulfur dan 12% NaCl menghasilkan peningkatan nilai kohesi sebesar ±58%, sudut geser dalam sebesar ±48%, dan tegangan geser maksimum sebesar ±155% dibandingkan tanah asli. Peningkatan kekuatan geser ini disebabkan oleh terbentuknya senyawa pozzolanik seperti Calcium Silicate Hydrate (C–S–H) dan ettringite yang memperkuat ikatan antar partikel tanah. Secara mikrostruktural, terjadi pemadatan partikel, penurunan porositas, serta peningkatan interlocking akibat interaksi ionik antara Na⁺, Cl⁻, dan SO₄²⁻ dengan mineral tanah. Hasil penelitian ini menunjukkan bahwa kombinasi NaCl dan sulfur dapat berfungsi sebagai bahan stabilisasi kimia efektif yang mampu meningkatkan kekuatan mekanik dan kestabilan mikrostruktur tanah pasir secara signifikan. Penelitian ini diharapkan dapat menjadi dasar pengembangan teknologi stabilisasi tanah berbasis reaksi kimia alami yang ramah lingkungan dan ekonomis.
Enhancing Cultural Identity Through Academic Collaboration at the Workshop for Documenting the Traditional Architecture of the Tuha Pucok Krueng Mosque in Pidie Jaya Sabilla, Arissa; Lisa, Nova Purnama; Rikza, Rikza; Siregar, Putri Fikadilah; Sinurat, Dian Aswatul; Yosantia, Muhammad Ferah; Juanda, Ari; Muammar, Rajib
ABDIMU: Jurnal Pengabdian Muhammadiyah Vol 5, No 2 (2025): Vol 5 No 2 Desember 2025
Publisher : Universitas Muhammadiyah Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37598/abdimu.v5i2.2583

Abstract

The purpose of this community service activity is to strengthen cultural identity through a construction documentation workshop, addressing the fading cultural identity. The methods used in this community service activity include outreach, workshops, and training. The activity was implemented as part of the SIMPORA XVI 2025 Expo, involving lecturers, students, business actors, and cultural communities. The activities included outreach, design workshops, exhibitions, and interactive dialogue between academics and the community. The results of this activity indicate that academic collaboration can enhance students' understanding of the importance of cultural preservation, encourage active community participation in showcasing works based on local wisdom, and produce building designs that incorporate cultural values through the documentation of the traditional construction of the Tuha Pucok Krueng Mosque. This activity concludes that strengthening cultural identity can be achieved if universities consistently act as community partners in building collective awareness and making a tangible contribution to the sustainability of local culture.
IDENTIFIKASI FAKTOR LINGKUNGAN PENYEBAB BANJIR BANDANG DI KABUPATEN ACEH TAMIANG Siregar, Putri Fikadilah; Aswatul Sinurat, Dian; Ferah Yosantia, Muhammad; Rikza
Jurnal Media Teknik Sipil Samudra Vol 6 No 2 (2025): Desember 2025
Publisher : Program Studi Teknik Sipil, Fakultas Teknik. Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jmtss.v6i2.13937

Abstract

Flash floods are one of the hydrometeorological disasters that frequently occur in Aceh Tamiang Regency and cause significant impacts on the environment and civil infrastructure. Flash flood events are influenced by various interrelated environmental factors, both natural and anthropogenic. This study aims to identify the environmental factors contributing to flash floods in Aceh Tamiang Regency. The research employs a descriptive qualitative approach using secondary data obtained from relevant institutions and a comprehensive literature review. The results indicate that the main environmental factors triggering flash floods include high-intensity rainfall, changes in land cover in the upper watershed area, topographic conditions dominated by steep slopes, and limited river capacity due to sedimentation and inappropriate use of river buffer zones. These factors interact with one another and significantly increase the risk of flash flood occurrences. The identification of these environmental factors is expected to provide a scientific basis for flash flood mitigation planning through environmentally sound watershed management and sustainable civil engineering planning in Aceh Tamiang Regency.
Co-Authors Aswatul Sinurat, Dian Ferah Yosantia, Muhammad Juanda, Ari Muammar, Rajib Rikza Rikza, Rikza Rizki Damayanti, Rizki Sabilla, Arissa Sinurat, Dian Aswatul Yosantia, Muhammad Ferah