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All Journal JMTS: Jurnal Mitra Teknik Sipil Jurnal Tecnoscienza Journal of Civil Engineering and Vocational Education
Herdianti, Wenny
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Engineering Environmental Science Mathematics Transportation Other

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Risk Analysis of Post-Disaster Logistics Distribution Failure Herdianti, Wenny; Adji, Bayu Martandto; Ophiyandri, Taufika
CIVED Vol. 11 No. 3 (2024): September 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i3.603

Abstract

In conducting logistical activities of disaster relief in natural disaster management. it is often not possible to implement as it should. and there are always potential risks that arise. One of the problems faced is the delayed distribution of post-disaster logistics. Therefore. risk management is necessary so that disaster relief logistics activities can run well. In addition. there is a need for a risk mitigation strategy to mitigate potential risks in the post-disaster logistics distribution process. The study aims to identify potential risks to post-disaster logistics distribution activities and find out which risk management strategies are a priority to address immediately. Failure Mode and Effect Analysis (FMEA) is a systematic approach to identifying failures and giving a value or score to each risk. From the results of the study. 32 potential risks occurred. As a result. 13 risks were identified with RPN values above critical point values. Thus. 13 were obtained as priority management risks. where the risks with the top 3 RNA values are Disruption of the post-earthquake telephone network Difficulty coordination of the logistics team with a rating of 25.98. Long logistic delivery travel time with a value of 21.86. and Condition of the vehicle used is not good with a score of 21.66. Thus. for 13 of these risks. mitigation is carried out for treatment priorities. Risk management strategies are applied to risks that have RPN values above critical values to minimize the impact.
Pemanfaatan Limbah Plastik Polyethylene Terephthalate (PET) Sebagai Agregat Kasar Beton Ringan: Systematic Literature Review Arrisha Anggraini; Wenny Herdianti; Ivana Christine Sembiring Brahmana; Titonik Feberman Hia; Melvi Maulita Napitupulu; I Gede Wyana Lokantara
JURNAL TECNOSCIENZA Vol. 10 No. 2 (2026): JURNAL TECNOSCIENZA
Publisher : JURNAL TECNOSCIENZA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51158/thjvb146

Abstract

Plastic waste, particularly polyethylene terephthalate (PET) from beverage bottles, constitutes a major source of non-biodegradable waste that is difficult to decompose and poses long-term environmental risks. The utilization of polyethylene terephthalate (PET) waste as a partial replacement for coarse aggregate in concrete offers a dual benefit: reducing plastic waste while conserving natural aggregates and decreasing concrete density for lightweight applications.This study systematically examines the mechanical properties of polyethylene terephthalate (PET)-based concrete through a systematic literature review following the PRISMA 2020 protocol, covering publications from 2018 to 2026. A literature search was conducted across the SINTA, Portal Garuda, Google Scholar, and Scopus databases, yielding 155 initial articles. After a rigorous screening process, 7 experimental studies met the inclusion criteria, namely those that utilized polyethylene terephthalate (PET) as a coarse aggregate substitute and reported quantitative data on compressive strength and/or density. The synthesis reveals a consistent trend in which increasing polyethylene terephthalate (PET) content reduces compressive  strength (ranging from 13–20 MPa at 5–10% substitution and 7–10 MPa at >25%) as well as density (1,645–1,900 kg/m³), resulting in lightweight non-structural concrete. A combination of PET and rice husk ash achieved an optimal compressive strength of 24.85 MPa. Substitution levels of 5–10% are most suitable for semi-structural elements, whereas levels above 25% are optimal for non-structural applications such as partition panels and precast drainage channels. 
Studi Literatur Karakteristik Fisik dan Mekanik Aspal Modifikasi Berdasarkan Hasil Uji Laboratorium (Periode 2020–2025) Wenny Herdianti; I Wayan Putra Jayantara Jayantara; Arrisha Anggarini; Ivana Christine Sembiring Brahmana; Melvi Maulita Napitupulu; A. Daniel Anderson Munthe
JURNAL TECNOSCIENZA Vol. 10 No. 2 (2026): JURNAL TECNOSCIENZA
Publisher : JURNAL TECNOSCIENZA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51158/anqs5b48

Abstract

Conventional asphalt still has limitations in withstanding increasing traffic loads and environmental influences, which can lead to permanent deformation, cracking, and a reduction in pavement service life. Various studies have developed modified asphalt to improve pavement performance; however, the findings remain scattered and have not been comprehensively synthesized. This study aims to examine the physical and mechanical characteristics of modified asphalt based on laboratory testing results using the Systematic Literature Review (SLR) method. Data were collected from Google Scholar, ScienceDirect, SpringerLink, ResearchGate, and SINTA-indexed national journals published between 2020 and 2025. The initial search yielded 85 articles, and after applying the inclusion and exclusion criteria, 11 articles were selected for analysis. The reviewed data included binder physical characteristics, rheological properties, and the mechanical characteristics of asphalt mixtures. The results indicate that the use of modification materials such as polymers, rubber, nanomaterials, and plastic waste generally improves the softening point, Marshall stability, and resistance to permanent deformation. However, the increased stiffness observed in some modified asphalt types may reduce mixture flexibility and increase the risk of cracking at low temperatures. Therefore, modified asphalt has significant potential to enhance pavement performance, but the selection of modification materials and their dosage should be adjusted to technical requirements to achieve optimal performance.
EVALUASI KECUKUPAN KAPASITAS SALURAN DRAINASE JALAN TIPE U-DITCH PRACETAK JALAN TELUK NIBUNG Arrisha Anggraini; Wenny Herdianti; Wisnu Prayogo; Yuni Yolanda; Rizky Simanjuntak; A. Daniel Anderson Munthe
JMTS: Jurnal Mitra Teknik Sipil Volume 9, Nomor 2, Mei 2026
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v9i2.36951

Abstract

Urban road drainage systems are critical infrastructure for managing surface runoff and preventing inundation, particularly in densely populated residential corridors where land imperviousness is high. Teluk Nibung Road (STA. 188+855–189+295) in Tanjung Balai, North Sumatra, is a 440-meter corridor served by precast U-ditch drainage channels that have never been technically evaluated for hydraulic adequacy, thereby necessitating a systematic assessment. The evaluation methodology follows Pd T-02-2006-B, encompassing hydrological analysis using the Rational Method to derive the design discharge (Qr), hydraulic analysis using the Manning equation to determine the existing channel capacity (Qs), and capacity adequacy assessment based on the criterion Qs ≥ Qr. Rainfall data were sourced from the Meteorology, Climatology, and Geophysics Agency (BMKG) through the Tanjung Balai City Statistics Agency (BPS) covering the period 2008–2017, with a 5-year return period applied. The time of concentration, computed from overland flow travel time and channel flow travel time, yielded Tc = 6.530 minutes (0.109 hours), and the 5-year design rainfall intensity was established at 175 mm/h. The catchment area is 6,160 m², and a base runoff coefficient C₀ representing land-cover characteristics was applied together with a correction factor fk to account for dense residential conditions and planning safety margins, yielding a design discharge of Qr = 0.283 m³/s. The existing channel (0.60 m × 0.30 m) has a hydraulic capacity of Qs = 0.907 m³/s, confirming that Qs ≥ Qr and the channel is hydraulically adequate under the analyzed conditions. Nevertheless, operational performance remains susceptible to reduction in effective cross-sectional area owing to sedimentation and solid waste accumulation, and therefore routine maintenance is recommended to sustain drainage functionality. Abstrak Sistem drainase jalan perkotaan berperan penting dalam mengendalikan limpasan air hujan dan mencegah genangan, khususnya pada koridor permukiman padat dengan tingkat kedap air yang tinggi. Jalan Teluk Nibung (STA. 188+855–189+295) di Tanjung Balai, Sumatera Utara, merupakan koridor sepanjang 440 meter yang dilayani saluran drainase U-ditch pracetak dan belum pernah dievaluasi secara teknis terkait kecukupan kapasitasnya, sehingga diperlukan evaluasi yang sistematis. Metodologi evaluasi mengacu pada Pd T-02-2006-B, meliputi analisis hidrologi menggunakan metode rasional untuk memperoleh debit rencana (Qr), analisis hidraulika dengan persamaan Manning untuk menentukan kapasitas saluran eksisting (Qs), serta evaluasi kecukupan kapasitas berdasarkan kriteria Qs ≥ Qr. Data curah hujan bersumber dari Badan Meteorologi, Klimatologi, dan Geofisika (BMKG) melalui Badan Pusat Statistik (BPS) Kota Tanjung Balai, mencakup periode 2008–2017 dengan periode ulang 5 tahun. Waktu konsentrasi dihitung dari komponen waktu aliran permukaan dan waktu aliran dalam saluran, sehingga diperoleh Tc = 6,530 menit (0,109 jam), sedangkan intensitas hujan rencana periode ulang 5 tahun ditetapkan sebesar 175 mm/jam. Luas daerah tangkapan adalah 6.160 m², dan koefisien limpasan dasar C₀ yang merepresentasikan karakteristik tutupan lahan digunakan bersama faktor koreksi fk untuk merepresentasikan kondisi kawasan permukiman padat dan faktor keamanan perencanaan, sehingga diperoleh debit rencana Qr = 0,283 m³/det. Saluran eksisting berdimensi 0,60 m × 0,30 m memiliki kapasitas hidraulis Qs = 0,907 m³/det, sehingga Qs ≥ Qr dan saluran dinyatakan memadai secara hidraulis pada kondisi yang dianalisis. Meskipun demikian, kinerja operasional tetap rentan terhadap penurunan luas penampang efektif akibat sedimentasi dan akumulasi sampah, sehingga pemeliharaan rutin direkomendasikan untuk menjaga fungsi drainase.
Co-Authors A. Daniel Anderson Munthe A. Daniel Anderson Munthe Adji, Bayu Martandto Anggraini, Arrisha Arrisha Anggarini Hia, Titonik I Gede Wyana Lokantara . Ivana Christine Sembiring Brahmana Jayantara, I Wayan Putra Melvi Maulita Napitupulu Ophiyandri, Taufika Simanjuntak, Rizky Wisnu Prayogo Yuni Yolanda