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INDONESIA
Jurnal Teknik Sipil
Published by Institut Teknologi Bandung
ISSN : 08532982     EISSN : 25492659     DOI : 10.5614/jts
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Teknik Sipil merupakan jurnal ilmiah yang diterbitkan berkala setiap tiga bulan, yaitu April, Agustus dan Desember. Jurnal Teknik Sipil diterbitkan untuk pertama kalinya pada tahun 1990 dengan membawa misi sebagai pelopor dalam penerbitan media informasi perkembangan ilmu Teknik Sipil di Indonesia. Sebagai media nasional, Jurnal Teknik Sipil diharapkan mampu mengakomodir kebutuhan akan sebuah media untuk menyebarluaskan informasi dan perkembangan terbaru bagi para peneliti dan praktisi Teknik Sipil di Indonesia. Dalam perkembangannya, Jurnal Teknik Sipil telah terakreditasi sebagai jurnal ilmiah nasional sejak tahun 1996 dan saat ini telah terakreditasi kembali (2012-2017). Dengan pencapaian ini maka Jurnal Teknik Sipil telah mengukuhkan diri sebagai media yang telah diakui kualitasnya. Hingga saat ini Jurnal Teknik Sipil tetap berusaha mempertahankan kualitasnya dengan menerbitkan hanya makalah-makalah terbaik dan hasil penelitian terbaru.
Arjuna Subject : -
Articles 14 Documents
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Search results for , issue "Vol 31 No 3 (2024): Jurnal Teknik Sipil - Edisi Desember" : 14 Documents clear
Pemilihan Tingkat Diskonto untuk Pengukuran Nilai Manfaat Uang pada Proyek Penyediaan Infrastruktur dengan Skema KPBU Wibowo, Andreas; Zuna, Herry Trisaputra
Jurnal Teknik Sipil Vol 31 No 3 (2024): Jurnal Teknik Sipil - Edisi Desember
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.3.11

Abstract

Abstract Better Value for Money (VFM) is a key reason The Government opts for Public-Private Partnership (PPP) schemes in infrastructure project delivery. The Government has developed a quantitative VFM measurement methodology based on the Public Sector Comparator (PSC). A critical issue within this methodology is determining the appropriate discount rate for PSC and PPP cash flows. This paper aims to evaluate the impact of various discount rates on VFM. Four discount rates are analyzed: the project rate, the risk-free rate, the social discount rate, and a modified project rate. Two approaches are considered: applying the same discount rate and using different rates for PSC and PPP. The findings reveal that differing discount rates, even with identical cash flows, result in variations in VFM. When the same discount rate is applied to both PSC and PPP, the VFM is negative unless the discount rate equals or exceeds the project rate. Moreover, the greater the spread between PSC and PPP discount rates, the lower the VFM when the PSC rate is higher, and the higher the VFM when the PPP rate is higher. This paper recommends the development of more detailed guidelines for determining discount rates to prevent VFM miscalculations, which can result in misleading decisions. Keywords : Value for money, public sector comparator, discount rate, public-private partnership, infrastructure
Pengaruh Limbah Polimer PET dan EVA sebagai Subtitusi Pasir Silika dan Semen terhadap Peningkatan Kuat Lentur, Sifat Fisis dan Karakterisasi Mortar Polimer Amin, Muhammad; Laksmidevi Juwono, Ariadne; Sudibyo, Sudibyo; Suprihatin, Suprihatin; Putriana, Silvia
Jurnal Teknik Sipil Vol 31 No 3 (2024): Jurnal Teknik Sipil - Edisi Desember
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.3.3

Abstract

Abstract A study was conducted on the manufacture of polymer mortar using Polyethylene Terephthalate (PET) as a substitute for sand with a composition of 0%, 0.2%, 0.5%, 0.8%, 1.1%, 1.4% and Ethylene Vinyl Acetate (EVA) polymer composition of 0%, 2%, 4%, 6%, 8%, 10%. Sand, cement and polymer materials were weighed and molded into a size of 16 × 4 × 4 cm3 and soaked in water for 7 and 14 days. The highest flexural strength value obtained at 14 days of immersion was 6.50 MPa, porosity at 7 days of 12.20%, absorption value at 7 days of 6.65% and density at 14 days of 1.89 g/cm3 with a polymer substitution composition for sand of 10% EVA polymer: 1.4% PET. Characterization of the sample was carried out using X-ray Diffraction (XRD), X-ray fluorescence (XRF), Scanning Electron Microscope- Energy Dispersive X-ray spectroscopy (SEM-EDS), and Fourier-transform infrared spectroscopy (FTIR). XRF characterization obtained CaO of 46.95% and SiO2 of 24.45%, which is the result of CS-H formation. XRD characterization obtained calcite, quartz, corundum, hematite phases. SEM-EDS images show a cauliflower-like morphology and dominant elements of Ca and Si. FTIR functional groups are O-H, C=O, C-C, C-H, Si-O-Si, and Si-O is a portlandite group. The increasing addition of EVA and PET polymers results in high porosity and high flexural strength. Keywords: Polymer, mortar, EVA, PET, and characterization.
Laboratory Performance of Asphalt Concrete containing Foamed Bitumen from extraction of Buton Natural Asphalt Rahman, Harmein; Harnedi, Raihan Arditama; Siregar, Fanny Tri Novitasari; Kim, Yongjoo; Lee, Kanghun; Kang, Ilhwan
Jurnal Teknik Sipil Vol 31 No 3 (2024): Jurnal Teknik Sipil - Edisi Desember
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.3.2

Abstract

This study examines the performance of asphalt concrete mixtures using foamed bitumen derived from extracted Buton natural asphalt (Asbuton) in comparison to conventional penetration asphalt (Pen 60/70). The research focuses on evaluating key parameters such as aggregate properties, Marshall stability, indirect tensile strength, and other mix characteristics, benchmarked against Indonesian national standards. Asbuton, known for its high viscosity and resistance to extreme conditions, offers an alternative binder for sustainable road infrastructure development. The results demonstrate that foamed Asbuton significantly outperforms Pen 60/70 in critical metrics. Foamed Asbuton achieved higher stability (2440.8 kg) and a superior tensile strength ratio (92.78%), reflecting its robustness under heavy loads and resistance to moisture-induced damage. In contrast, Pen 60/70 exhibited reduced stability and rigidity when subjected to the foaming process. The enhanced performance of foamed Asbuton is attributed to its dense structure and the benefits of the foaming process, which improves aggregate coating and binder distribution at lower mixing temperatures. This study highlights the potential of foamed bitumen technology, particularly when paired with high-performance binders like Asbuton, to improve the durability and sustainability of road infrastructure. Foamed Asbuton emerges as a promising material for high-stress applications and extreme environmental conditions.
Pengaruh Kriteria Teknis Dana Alokasi Khusus (DAK) Bidang Jalan Terhadap Jaringan Jalan pada Beberapa Pulau di Indonesia Meriana, Desi; Subagio, Bambang Sugeng; Najid, Najid
Jurnal Teknik Sipil Vol 31 No 3 (2024): Jurnal Teknik Sipil - Edisi Desember
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.3.6

Abstract

Abstract The study aims to analyze the influence of technical data criteria variables and determine the best model criteria. The criteria analyzed included pavement deterioration, bridge condition, road performance, local budget allocation for road capital expenditure, allocation of local budget government for routine maintenance of roads, e-monitoring reporting, and shp map reporting. This evaluation is needed to highlight the importance of comprehensive data testing to provide an overview of the road infrastructure data used as the basis for Special Allocation Fund (DAK) allocations, considering the different characteristics between islands in Indonesia. The methods used include Multiple Linear Regression with dummy variables and Binary Logistic Regression. The study's results show that Nusa Tenggara and Bali Islands have the best model for explaining the variation of kjtm and npe variables, with better consistency and significance, while Java Island shows a significant influence of Kj, Kij, and Aprj variables on road quality. Keyword: Technical data ctriteria, technical criteria, DAK, regression, road quality

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