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Analisis Perubahan Struktur Mineral Tanah Akibat Reaksi Kimia antara Lempung dan Kapur pada Kondisi Kelembapan Tinggi Sabilla, Arissa; Rikza, Rikza; Alfisyahrin, Alfisyahrin; Masthura, Masthura; Rizky, Sari; 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.v7i2.13354

Abstract

Penelitian ini bertujuan untuk menganalisis perubahan struktur mineral tanah akibat reaksi kimia antara lempung dan kapur pada kondisi kelembapan tinggi dengan memanfaatkan data sekunder hasil uji laboratorium terdahulu. Analisis difokuskan pada hubungan antara variasi kadar kapur terhadap perubahan sifat mekanik dan mekanisme kimia yang mendasarinya. Bahan penelitian berupa tanah lempung berplastisitas tinggi (CH) yang distabilisasi menggunakan kapur padam (Ca(OH)₂) pada kadar 0%, 2%, 4%, 6%, 8%, 10%, dan 12% dari berat kering tanah. Hasil pengujian menunjukkan bahwa penambahan kapur hingga kadar optimum 6% meningkatkan nilai sudut geser dalam (ϕ) dari 20,545° menjadi 39,330°, serta kohesi (c) dari 1,505 t/m² menjadi 2,080 t/m². Peningkatan kekuatan ini disebabkan oleh terbentuknya senyawa Calcium Silicate Hydrate (CSH) dan Calcium Aluminate Hydrate (CAH) hasil reaksi pozzolanisasi antara ion Ca²⁺ dari kapur dan mineral silikat–aluminat dari tanah lempung. Kelembapan tinggi mempercepat proses difusi ion dan pembentukan senyawa pengikat tersebut, sehingga struktur tanah menjadi lebih rapat dan kaku. Namun, pada kadar kapur di atas 10%, reaksi kimia tidak berjalan efektif karena terbentuk lapisan jenuh Ca(OH)₂ yang menghambat difusi ion. Secara geoteknis, kondisi optimum tercapai pada kombinasi kadar kapur 6–8% dengan kelembapan tinggi yang terkontrol, yang mampu meningkatkan kekuatan geser dan menurunkan plastisitas tanah secara signifikan.
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.
KAJIAN KONSEP EASY MAINTANANCE PADA FASADE ARSITEKTURAL MUSEUM TSUNAMI ACEH MENDUKUNG KEBERLANJUTAN GEDUNG Rikza, Rikza; Ferah Yosantia, Muhammad
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.v6i2.13894

Abstract

The Aceh Tsunami Museum is a public building characterized by complex architectural design, both in terms of historical significance and aesthetics. Proper maintenance and upkeep are essential to ensuring the sustainability of its function, aesthetic value, and user safety. This study aims to identify the materials utilized in the museum's construction and categorize them based on the 'Easy Maintenance' concept. A descriptive qualitative approach was employed as the research method, with data gathered through case studies, field observations, and literature reviews. The findings indicate that the use of Glass Reinforced Concrete (GRC), curtain walls, and aluminum offers high durability; however, their maintenance requires specialized equipment. Furthermore, the selection of appropriate materials and the implementation of passive design strategies significantly influence the long-term maintenance and preservation of the building.
EVALUASI KINERJA TATA LETAK RUANG PUBLIK DITINJAU DARI PERSEPSI DAN PERILAKU PENGGUNA (STUDI KASUS RUANG TERBUKA TEPI PANTAI ULEE LHEUE) Rikza, Rikza; Zulfadhli
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.v6i2.13895

Abstract

Coastal public spaces play a strategic role in supporting social interaction, recreational activities, and urban environmental quality. However, the quality of public space is not solely determined by physical aspects, but also by the compatibility of spatial layout with users’ perceptions and behaviors. This study aims to evaluate the performance of public building spatial layout in the coastal open space of Ulee Lheue Beach, Banda Aceh City, based on users’ perceptions and behaviors. The research employed a qualitative evaluative approach through behavioral observation, in-depth interviews, and documentation. The findings indicate that Ulee Lheue Beach has strong visual and physical potential as a coastal public space, particularly in terms of openness and natural scenery. Nevertheless, the spatial layout has not fully responded to users’ activity patterns and needs, as reflected by limited spatial connectivity, unclear zoning, and the emergence of adaptive user behaviors in utilizing space informally. The study concludes that the performance of the public space layout at Ulee Lheue Beach remains suboptimal and requires reconfiguration that prioritizes user experience, perception, and behavior to create a functional, inclusive, and sustainable coastal public space.