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All Journal Sprocket : Journal of Mechanical Engineering JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Journal of Telecommunication and Electrical Scientific
Hutasuhut, Syafrida Hanum
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Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Other

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Analisis Potensi Sampah di Provinsi Sumatera Utara Menjadi Sumber Energi Listrik Alternatif (Biogas) Hutasuhut, Syafrida Hanum; Nugraha, Yoga Tri; Mawardi, Mawardi; Novalianda, Sari; Setiawan, Arif Milando; Arif, Ahmad; Sembiring, Resep
Journal of Telecommunication and Electrical Scientific Vol. 1 No. 02 (2024): Journal of Telecommunication and Electrical Scientific (JTElS)
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24010/jtels.v1i02.942

Abstract

Provinsi Sumatera Utara menghadapi tantangan yang signifikan dalam pengelolaan sampah akibat peningkatan populasi dan aktivitas ekonomi. Sebagian besar sampah yang dihasilkan adalah sampah organik yang memiliki potensi besar untuk diubah menjadi sumber energi alternatif melalui teknologi biogas. Penelitian ini menganalisis potensi sampah organik di Sumatera Utara sebagai sumber energi listrik alternatif, dengan fokus pada proses konversi sampah menjadi biogas melalui fermentasi anaerobik. Hasil analisis menunjukkan bahwa pemanfaatan biogas dari sampah organik dapat menghasilkan energi listrik. Potensi energi listrik yang dihasilkan dari pengkonversian sampah menjadi biogas pada tahun 2020 sebesar 25.14 MW, pada tahun 2021 sebesar 30.25 MW, pada tahun 2022 sebesar 65.74 MW, dan pada tahun 2023 sebesar 70.86 MW.
Pengaruh Penggunaan Crumb Rubber sebagai Substitusi Agregat Halus terhadap Kuat Tekan Beton Tidak Bertulang Suganda, Defri; Fahri, Tengku Muhammad; Nasution, Adinda Juwita; Ridha, Muhammad Abdhi; Hutasuhut, Syafrida Hanum
SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 7 No 1 (2025): Edisi Agustus 2025
Publisher : Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sprocket.v7i1.1878

Abstract

This study aims to analyze the effect of using crumb rubber (used tire powder) as a partial substitution of fine aggregate in unreinforced concrete. especially compressive strength and concrete weight. Crumb rubber variations used were 0%, 5%, 15%, and 25% of the volume of fine aggregate. Tests were conducted on 15 cm × 30 cm cylindrical specimens treated for 28 days. The main parameters tested included compressive strength and water absorption. The results showed that the addition of crumb rubber decreased the compressive strength of concrete significantly, the highest compressive strength was obtained in normal concrete (25.8 MPa), while the mixture of 25% crumb rubber produced the lowest compressive strength (3.9 MPa). However, it provides advantages in terms of lighter specific gravity and better water absorption. However, the addition of crumb rubber reduced the weight of the concrete by 19.4%. The use of crumb rubber at 5% is considered the most optimal alternative with a decrease in compressive strength that is still within the tolerance limit for non-structural concrete. This research supports the utilization of waste tires as an effort to support sustainable development. Keywords: crumb rubber, non-reinforced concrete, waste tires, compressive strength, lightweight concrete
Perancangan Job Mix Design untuk Uprating Kapasitas IPA Sunggal Menjadi 400 Liter Per Detik Fahri, Tengku Muhammad; Ridha, Muhammad Abdhi; Hutasuhut, Syafrida Hanum
Journal Scientific of Mandalika (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 6 No. 4 (2025)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol6iss4pp1010-1015

Abstract

This study aims to design an optimal Job Mix Design (JMD) in supporting the uprating construction work of the Sunggal Water Treatment Plant (IPA) up to a capacity of 400 liters per second. The research method uses a quantitative approach with the stages of data collection, material selection, concrete composition design, and quality testing. The materials used include type I cement from Semen Padang, sand and split stone from Sei Wampu Binjai, drilled well water, and Plastiment P121R additional materials. The results showed that the optimal composition for 1 m³ of concrete K-250 consisted of 305 kg of cement, 835 kg of sand, 388 kg of 10-20 mm split, 718 kg of 20-30 mm split, 150 liters of water, and 0.92 liters of P121R Plastiment. Tests show that concrete achieves a characteristic compressive strength of 250 kg/cm² at 28 days of age with a slump value of 12±2 cm. The use of local materials contributes to transportation cost efficiency and supports the local economy. The use of Plastiment P121R as an additive improves the workability of concrete and reduces the need for water in the mixture. This research results in a concrete design that meets the technical specifications for IPA uprating construction with an efficient and sustainable approach, and can be a model for the development of water treatment infrastructure in the future.
Co-Authors Adinda Juwita Nasution Ahmad Arif Arif Milando Setiawan Fahri, Tengku Muhammad Novalianda, Sari Ridha, Muhammad Abdhi Rony, Zahara Tussoleha SEMBIRING, RESEP Suganda, Defri Yoga Tri Nugraha