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All Journal Jurnal Pengabdian Magister Pendidikan IPA jurnal syntax admiration Jurnal Ilmiah Telsinas Elektro, Sipil dan Teknik Informasi
Daniel Anderson Munthe
Universitas Sumatera Utara (USU) Medan, Indonesia
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics

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Analisis Pengaruh Jarak Pemasangan PVD Terhadap Derajat Konsolidasi pada Konstruksi Timbunan Daniel Anderson Munthe; Roesyanto Roesyanto; Rudi Iskandar
Jurnal Syntax Admiration Vol. 2 No. 3 (2021): Jurnal Syntax Admiration
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jsa.v2i3.195

Abstract

Metode pembebanan awal (preloading) dan drainase vertikal adalah salah satu metode populer yang digunakan untuk meningkatkan kuat geser tanah lunak dengan besar pembebanan yang sama atau lebih daripada beban yang akan dipikul oleh tanah baik saat tahapan konstruksi maupun setelah tahapan konstruksi selesai. Sedangkan drainase vertikal dapat mempercepat proses konsolidasi. Berdasarkan perkembangan drainase vertikal adalah penggunaan PVD (Prefabricated Vertical Drain). PVD berfungsi untuk mengalirkan air yang terdisipasi akibat proses konsolidasi. Penelitian ini bertujuan untuk membandingkan hasil penurunan yang lebih mendekati antara perhitungan analitis dan dengan pemodelan Plaxis 2D baik tanpa memperhitungkan efek smear zone maupun dengan memperhitungkan efek smear zone. Berdasarkan hasil analisis ini diperoleh untuk perhitungan derajat konsolidasi pemasangan PVD dengan jarak pemasangan 1 meter lebih cepat dibandingkan jarak 1,3 meter dan 1,5 meter dan juga hasil analisis ini diperoleh besar penurunan yang terjadi pada proses konsolidasi dengan pemodelan pada Plaxis 2D dengan memperhitungkan efek smear zone adalah 1,484 meter dan 1,76 meter tanpa memperhitungkan efek smear zone. Sedangkan untuk penurunan aktual yang terjadi dilapangan berdasarkan data Settlement Plate-02 adalah 1,637 meter. Waktu yang dibutuhkan dalam proses konsolidasi menggunakan pemodelan Plaxis 2D baik dengan memperhitungkan efek smear zone lebih lama dibandingkan tanpa memperhitungkan efek smear zone.
Aggregate Gradation Influence on Marshall and Stiffness of AC-WC Mixtures Jayantara, I Wayan Putra Jayantara; Herdianti, Wenny; Lokantara, I Gede Wyana; Munthe, Anggiat Daniel Anderson; Simanjuntak, Rizky
Jurnal Ilmiah Telsinas Vol 9 No 1 (2026)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38043/telsinas.v9i1.7580

Abstract

Aggregate gradation plays an important role in determining the performance of asphalt mixtures used in road pavement structures. Numerous studies have investigated the influence of aggregate gradation on Marshall characteristics and volumetric properties of asphalt mixtures. However, limited studies have examined the combined effect of aggregate gradation variations within the specification limits on both Marshall characteristics and stiffness performance of AC-WC mixtures. In addition, the influence of proportional gradation variations across the specification envelope has not been widely discussed. Therefore, this study aims to investigate the influence of aggregate gradation variations within the specification limits of Asphalt Concrete Wearing Course (AC-WC) on optimum asphalt content, Marshall characteristics, and mixture stiffness. Five aggregate gradation variations were prepared using the proportional method based on gradation limits. Laboratory tests were conducted using Marshall testing and Indirect Tensile Stiffness Modulus (ITSM) to evaluate mixture performance. The results show that aggregate gradation significantly affects the optimum asphalt content and mechanical characteristics of the mixture. Finer aggregate gradation increases the aggregate surface area and requires higher asphalt content. The optimum asphalt content for different gradation variations ranged from 5.7% to 6.3%. In addition, finer gradation produced lower air voids (VIM) and resulted in higher Marshall stability and mixture stiffness. These findings indicate that aggregate gradation has a significant influence on the volumetric and mechanical properties of AC-WC mixtures.
Pelatihan AutoCAD untuk Meningkatkan Kompetensi Gambar Teknik Siswa Kelas XI SMK Negeri 2 Binjai: Pelatihan AutoCAD untuk Meningkatkan Kompetensi Gambar Teknik Siswa Kelas XI SMK Negeri 2 Binjai Anggiat Daniel Anderson Munthe; I Wayan Putra Jayantara; Fikryah Atikah Pane; Ivana Christine Sembiring; Aula Sekar Arum Pertiwi; Melvi Maulita Napitupulu; Titonik Feberman Hia
Jurnal Pengabdian Magister Pendidikan IPA Vol 9 No 1 (2026): Januari - Maret 2026
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v9i1.14931

Abstract

This community service activity aims to improve the competence of vocational high school students in using AutoCAD software for technical drawing. The activity was conducted at SMK Negeri 2 Binjai involving 32 students of grade XI. The method used in this activity was a hands-on training approach combined with pre-test and post-test evaluation to measure the improvement of students’ competencies. The training materials included initial AutoCAD settings, layer management, dynamic block usage, title block creation, and proper layout and printing scale settings. The results showed that students competencies increased significantly after the training. The average pre-test score was 75.63 with a median of 75 and a score range of 35–100. After the training, the average post-test score increased to 90.94 with a median of 95 and a range of 60–100. The results indicate that practical-based AutoCAD training effectively improves students’ skills in producing structured and standardized technical drawings. This activity also helps students understand professional workflows commonly applied in the construction industry. Therefore, AutoCAD training can be considered an effective strategy to enhance vocational students' technical drawing competencies.
Co-Authors Aula Sekar Arum Pertiwi Fikryah Atikah Pane Herdianti, Wenny Hia, Titonik I Gede Wyana Lokantara . Ivana Christine Sembiring Jayantara, I Wayan Putra Melvi Maulita Napitupulu Roesyanto Rudi Iskandar Simanjuntak, Rizky