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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Pengabdian Magister Pendidikan IPA Jurnal Ilmiah Telsinas Elektro, Sipil dan Teknik Informasi
Jayantara, I Wayan Putra
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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Studi Karakteristik Campuran Tambalan Cepat Mantap (TCM) Thanaya, ME., PhD, I Nyoman Arya; Jayantara, I Wayan Putra; Purbanto, I Gusti Raka
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 26, Nomor 1 (2020)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.212 KB) | DOI: 10.14710/mkts.v26i1.28446

Abstract

Patching road pothole can be done using Permanent Cold Patching (PCP). This research main aim was to analyze the characteristic of the PCP. PCP Super Cold Mix Asphalt was used for the experiment. The mixtures were compacted Marshall hummer in lab using, and plate compactor on site. It was obtained that: compaction temperature variation significantly affected the characteristic of the mixture. Compaction at 100°C and 150°C, met stability, porosity and VMA specification, but not for the VFB. It required more compaction energy. The stability of cold compacted mixture at the age of 1 hour gave 844.74 kg (min. 500 kg). Towards this value, at the age of 48 hours; 96 hours; 192 hours; 384 hours, respectively gave increase of stability of 102%; 140%; 183%; 187% and then constant. Cold compaction on site gave less performance with porosity values in a range of 4.585-8.22% (spec. 4% -10%), therefore the VFB is less than minimum 65% of VMA; the stability obtained was 1422.72 kg (>min 500kg) or 58% stability of the samples compacted in lab at the same 16 days of age where stability had become maximum (constant). Cantabro test result of the cold mix gave 100% weight loss (the sample disintegrated), meanwhile the hot mix only lost 7.56% from 16% max loss.
Financial Feasibility Analysis of Asphalt Mixing Plant Investment: A Case Study in Gianyar Regency, Bali Jayantara, I Wayan Putra
Jurnal Ilmiah Telsinas Vol 8 No 2 (2025)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38043/telsinas.v8i2.6969

Abstract

The availability of adequate road infrastructure is crucial for supporting mobility and regional economic growth. In Indonesia, increasing demand for high-performance roads has driven a transition from penetration macadam to hot mix asphalt (HMA). To meet this demand efficiently, reliable production facilities such as Asphalt Mixing Plants (AMP) are essential. This study aims to evaluate the financial feasibility of an AMP investment located in Pering Village, Blahbatuh District, Gianyar Regency, Bali. The analysis uses five financial indicators: Net Present Value (NPV), Internal Rate of Return (IRR), Benefit Cost Ratio (BCR), Break Even Point (BEP), and Annual Equivalent (AE). Financial data were collected from the company’s records of hotmix production and sales during the 2014–2020 period. The results indicate that the AMP project is financially viable. The NPV is Rp. 33.421.961.979, the IRR is 18% higher than the Minimum Attractive Rate of Return (MARR) of 16%—while the BEP was achieved in the 7th month of 2015. The AE value reached Rp. 4.774.565.997 per year, and the BCR was calculated at 1,244. These findings confirm that the investment is profitable and worth pursuing. This study provides practical insights for investors and stakeholders in making data-driven decisions for infrastructure investments, particularly in the road construction sector. Furthermore, the findings are relevant for long-term AMP business development, considering the growing demand for HMA in Indonesia. The shift from penetration macadam to HMA underscores the importance of efficient asphalt production facilities to ensure consistent supply and support sustainable infrastructure development.
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 Daniel Anderson Munthe Fikryah Atikah Pane Herdianti, Wenny Hia, Titonik I Gede Wyana Lokantara . I Gusti Raka Purbanto I Nyoman Arya Thanaya Ivana Christine Sembiring Melvi Maulita Napitupulu Simanjuntak, Rizky