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All Journal Rekayasa Sipil JURNAL SIPIL SAINS Civil Engineering Journal Astonjadro Borneo Engineering: Jurnal Teknik Sipil JAIM (Jurnal Abdi Masyarakat) Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Jurnal Kacapuri : Jurnal Keilmuan Teknik Sipil SELODANG MAYANG Lowland Technology International Journal La Multiapp Jurnal Talenta Sipil Indonesian Journal of Fundamental Sciences Journal of Applied Civil and Environmental Engineering (JACEE) Structures, Infrastructure, Planning, Implementation, and Legislation
Erniati Bachtiar
Universitas Fajar
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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ANALISIS PEMANFAATAN FLY ASH SEBAGAI FILLER TERHADAP KINERJA CAMPURAN ASPAL BERONGGA MENGGUNAKAN SPESIFIKASI ( ROAD ENGGINERING ASSOSIATION OF MALAYSIA) REAM ASH Lismawati, Lismawati; Desi, Natsar; Bachtiar, Erniati; Chaeruel, M; Muh Yusuf Harun, A; Mahmud, Mahmud; Gusty, Sri
Selodang Mayang: Jurnal Ilmiah Badan Perencanaan Pembangunan Daerah Kabupaten Indragiri Hilir Vol. 11 No. 3 (2025): Jurnal Selodang Mayang
Publisher : Badan Perencanaan Pembangunan Daerah Kabupaten Indragiri Hilir Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47521/selodangmayang.v11i3.485

Abstract

The growth in the number of motor vehicles and high rainfall intensity increases the risk of water ponding on roads, thereby requiring pavement construction that is both safe and has good drainage capability. Porous asphalt is one solution; however, it tends to have lower structural stability due to its low filler content. Fly ash is a fine particle deposit resulting from coal combustion residue. This study examines the utilization of fly ash waste from the Nusantara Power Punagaya coal-fired power plant in Jeneponto as a filler substitute in porous asphalt mixtures based on REAM 2008. The aim is to evaluate the effect of fly ash variations (0%, 50%, 100%) on Marshall stability, abrasion resistance (Cantabro), and the microstructure of the mixture. Experimental methods were carried out in the laboratory, including testing the physical properties of aggregates and the chemical composition of fly ash, mix design, and SEM-EDS analysis. The results show that the use of fly ash meets the specifications for VIM, VMA, stability, flow, and Marshall Quotient (MQ), except for VFB, which did not meet the specifications for all variations. Cantabro weight loss values were 8.53% (0%), 10.27% (50%), and 9.77% (100%). SEM-EDS analysis revealed that fly ash particles bond well with asphalt, with dominant elements C (45.38%) and Si (33.84%), along with the formation of a new carbon (C). These findings indicate the potential of fly ash as an environmentally friendly filler to improve porous asphalt performance. Pertumbuhan jumlah kendaraan bermotor dan intensitas curah hujan yang tinggi meningkatkan risiko genangan air di jalan, sehingga diperlukan konstruksi perkerasan yang aman dan memiliki kemampuan drainase baik. Aspal berongga (porous asphalt) menjadi salah satu solusi, namun cenderung kurang stabil secara struktural akibat rendahnya kadar filler. Fly ash adalah partikel halus yang merupakan endapan dari tumpukan bubuk. Penelitian ini mengkaji pemanfaatan limbah fly ash dari PLTU Nusantara Power Punagaya, Jeneponto, sebagai pengganti filler dalam campuran aspal berongga sesuai spesifikasi REAM 2008. Penelitian ini untuk mengevaluasi pengaruh variasi fly ash (0%, 50%, 100%) terhadap stabilitas Marshall, ketahanan aus (Cantabro), serta mikrostruktur campuran. Metode eksperimen dilakukan di laboratorium dengan pengujian sifat fisik agregat dan kimia fly ash, desain campuran, serta uji SEM-EDS. Hasil menunjukkan bahwa penggunaan fly ash mampu memenuhi spesifikasi pada parameter VIM, VMA, stabilitas, flow, dan Marshall Quotient (MQ), kecuali VFB yang tidak terpenuhi pada semua variasi. Nilai kehilangan berat Cantabro masing-masing sebesar 8,53% (0%), 10,27% (50%), dan 9,77% (100%). Analisis SEM-EDS mengungkap bahwa partikel fly ash berikatan baik dengan aspal, serta terdapat unsur dominan C (45,38%) dan Si (33,84%), dengan pembentukan senyawa baru karbon (C). Temuan ini menunjukkan potensi fly ash sebagai filler ramah lingkungan untuk meningkatkan kinerja aspal berongga.
ANALISIS TEMPAT EVAKUASI SEMENTARA (TES) BERDASARKAN PETA POTENSI BAHAYA TSUNAMI DI KECAMATAN UJUNG BULU, KABUPATEN BULUKUMBA Imran T, Muh.; Chaerul, Muh; Desi, Natsar; Bachtiar, Erniati; Yusuf Harun, A; Marzuki, Ismail
Selodang Mayang: Jurnal Ilmiah Badan Perencanaan Pembangunan Daerah Kabupaten Indragiri Hilir Vol. 11 No. 3 (2025): Jurnal Selodang Mayang
Publisher : Badan Perencanaan Pembangunan Daerah Kabupaten Indragiri Hilir Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47521/selodangmayang.v11i3.488

Abstract

This study analyzes the determination of Temporary Evacuation Shelters (TES) based on tsunami hazard mapping in Ujung Bulu District, Bulukumba Regency. The tsunami hazard assessment was carried out using the Cornell Multi-grid Coupled Tsunami (COMCOT) model with a scenario from the Flores Back Arc Thrust (Nusa Tenggara Barat segment, M7.5). Simulation results indicate that tsunami arrival times range between 49 and 56 minutes with wave heights of 0,2 - 1.96 meters, and a maximum inundation distance of 998 meters inland. Based on spatial analysis, field survey, and GIS processing, 6 TES locations are recommended across several sub-districts in Ujung Bulu, such as Bintarore, Tanah Kongkong, Caile, and Kalumeme. The TES locations are positioned 360–1130 meters from the coastline, with walking times between 5.3 and 15.2 minutes. These findings highlight the importance of spatial-based disaster preparedness strategies to minimize casualties and improve community resilience. Penelitian ini menganalisis penentuan Tempat Evakuasi Sementara (TES) berdasarkan pemetaan bahaya tsunami di Kecamatan Ujung Bulu, Kabupaten Bulukumba. Penilaian bahaya tsunami dilakukan menggunakan model Cornell Multi-grid Coupled Tsunami (COMCOT) dengan skenario gempa dari Flores Back Arc Thrust (segmen Nusa Tenggara Barat, M7.5). Hasil simulasi menunjukkan waktu tiba tsunami berkisar antara 49-56 menit dengan tinggi gelombang 0.2 - 1,96 meter serta jarak genangan maksimum mencapai 998 meter ke daratan. Berdasarkan analisis spasial, survey lapangan dan pengolahan GIS, direkomendasikan 6 lokasi TES yang tersebar di beberapa kelurahan di Ujung Bulu yaitu Bintarore, Tanah Kongkong, Caile, dan Kalumeme. Lokasi TES berada pada jarak 360-1.130 meter dari garis pantai dengan waktu tempuh berjalan kaki antara 5,3-15,2 menit. Temuan ini menegaskan pentingnya strategi kesiapsiagaan bencana berbasis keruangan untuk meminimalisir korban jiwa dan meningkatkan ketangguhan masyarakat.
Design of Mine Distribution System at Nickel Mining Front of Pt. Cipta Djaya Surya Mulyadi, Mulyadi; Chaerul, Muhammad; Desi, Natsar; Bachtiar, Erniati; Harun, A. Yusuf; Marzuki, Ismail
Journal La Multiapp Vol. 7 No. 1 (2026): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v7i1.2647

Abstract

Nickel mining activities at PT. Cipta Djaya Surya in Molore Village, North Konawe Regency, face a serious problem in the form of stagnant runoff in the mine front area due to the lack of an adequate drainage system and sedimentation pond. This condition not only disrupts smooth mining operations but also has environmental impacts, such as reddish discoloration of coastal waters and potential siltation. This study aims to analyze surface runoff discharge, design open channel dimensions, and design settling ponds appropriate to the hydrological and topographical conditions of the study site. The methods used include collecting rainfall data for the past 10 years from the Meteorology, Climatology, and Geophysics Agency (BMKG), hydrological analysis using the rational method, hydraulic calculations using the Manning equation, and planning channel and settling pond dimensions based on runoff discharge. The results indicate that the maximum runoff discharge in the study area can be managed by designing a trapezoidal open channel with dimensions appropriate to the flow capacity, while the designed settling pond can accommodate the runoff volume without overflowing. The implementation of a planned drainage system is expected to maintain smooth mining operations, minimize the risk of landslides, and mitigate the impact of coastal environmental pollution. Therefore, this research supports the implementation of Good Mining Practice (GMP) principles and can be used as a reference in sustainable mine drainage planning.
The Impact of Material Price Fluctuation on Cost Overruns in National Toll Road Infrastructure Projects Rudi; Vina Levia Budiman; Masdiana; Nur Khaerat Nur; Erniati Bachtiar
Structures, Infrastructure, Planning, Implementation, and Legislation Vol. 1 No. 2 (2025): October, 2025
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/sipil.v1i2.314

Abstract

Fluctuations in construction material prices significantly challenge infrastructure project management, especially in Indonesia’s national toll road sector from 2023 to 2025. Employing a quantitative approach with purposive sampling of National Strategic Toll Road Projects (PSN), this study investigates the impact of price volatility for core materials (cement, steel, and asphalt) on project cost overruns. The analysis utilizes dual-source data: secondary data from the official Wholesale Price Index (WPI) published by the Central Statistics Agency (BPS) and budget realization data from the Ministry of Public Works and Housing (PUPR)/BPJT. Advanced analytical methods, including Structural Equation Modeling (SEM) to establish causal relationships and Least Squares Support Vector Machine (LSSVM) to develop a predictive model, reveal strong positive correlations between material price fluctuations and cost increases, with steel price volatility having the most pronounced effect. Empirical findings show cement prices increased by approximately 12.5% and steel by 15.3%, leading to cost overruns contributing up to 21% additional project costs. High reliability (Cronbach’s alpha 0.89) and data validity support these findings. Practical implications include the need for real-time price monitoring, adaptive budgeting with contingency funds of 20–25%, flexible procurement contracts, and digital tools like Building Information Modeling for risk mitigation. This research bridges macroeconomic volatility and engineering practice by offering an actionable predictive framework to support fiscal integrity and timely project delivery. Further research should incorporate socio-political variables and enhance predictive analytics using big data.
Critical Performance Assessment of Precast Concrete Quality in High-Rise Buildings Compliance with National Standards Muhammad Hunsan; Erny; Erniati Bachtiar; Arman Setiawan; Rita Hardianti Aris
Structures, Infrastructure, Planning, Implementation, and Legislation Vol. 1 No. 2 (2025): October, 2025
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/sipil.v1i2.315

Abstract

This study critically assesses Precast Concrete (PC) quality compliance in Indonesian high-rise buildings by comparing material strength, geometric tolerances, and seismic connection performance against SNI requirements. Using five years of official inspection data (2020–2025) from 120 certified lots (BSN/PUPR), the analysis identifies recurring non-compliance, including a 15.0% compressive strength defect rate, 8.5% AOQ, and 17.1% reinforcement cover deficiencies that may compromise structural durability. Wet joints exhibit better seismic resilience (μ = 4.5) than dry joints (μ = 3.8), though dry joints show pinching effects that reduce energy dissipation.Key root causes include moisture instability, admixture dosing errors, and precision gaps, revealing a persistent mismatch between documented procedures and actual statistical quality control. The study recommends implementing automated QC systems and strengthening SNI certification through more rigorous statistical approaches. Future work should integrate machine-learning predictive models using real-time factory data to enhance defect prevention.
Comparative Analysis of Fatal Construction Accident Types Revealing Safety Performance in the Services Sector Anindya Monika Putri; A. Ferina Herbourina Bonita; Vina Levia Budiman; Andi Rista Irawati Tanrasula; Erniati Bachtiar
Structures, Infrastructure, Planning, Implementation, and Legislation Vol. 1 No. 2 (2025): October, 2025
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/sipil.v1i2.317

Abstract

Occupational safety remains a critical challenge in the Indonesian construction sector, contributing to over one-third of all national work-related fatalities. This study performs a rigorous quantitative analysis using a census of 102 official fatal accident records from BPJS Ketenagakerjaan and the Ministry of PUPR (2018–2023).  The findings confirm that Falls from Height are the dominant cause of fatalities (41.2%), followed by material strikes. Statistical modeling (Logistic Regression) identified that short work tenure (< 5 years, OR ≈ 2.5) and safety harness non-compliance (OR ≈ 3.0) are the strongest predictors of this high-risk accident type.  The study indicates a systemic failure in enforcing OHS protocols, particularly concerning work-at-height hazards and Personal Protective Equipment (PPE) compliance. The novelty lies in the systematic use of national fatality census data coupled with risk modeling to empirically validate specific behavioral and demographic factors contributing to the most prevalent fatality type in Indonesia.  This work provides a strong empirical basis for developing evidence-based OHS policies, emphasizing the urgent need for stringent regulatory enforcement and targeted safety training for vulnerable worker groups.
Sustainable Utilization of Local Natural Aggregates for Eco-Friendly Concrete Production: Integrating Geospatial and Regional Economic Data in West Java, South Sumatra, and South Sulawesi Anugrah; Erny; Erniati Bachtiar; Arman Setiawan; Rita Hardianti Aris
Structures, Infrastructure, Planning, Implementation, and Legislation Vol. 1 No. 2 (2025): October, 2025
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/sipil.v1i2.323

Abstract

This study tackles the persistent environmental and economic complexities associated with conventional concrete manufacturing by establishing a novel sustainable production framework. This framework strategically integrates geospatial data on local aggregate reserves with key regional economic variables, focusing specifically on West Java, South Sumatra, and South Sulawesi as representative study areas in Indonesia. Leveraging Geographic Information System (GIS) technology and official statistics from the Geospatial Information Agency (BIG), alongside regional economic indices from the Central Statistics Agency (BPS), the investigation meticulously analyzed the spatial arrangement of high-quality aggregates, material price fluctuations, and crucial logistics expenditures. A multiple linear regression model was employed for quantitative analysis, which decisively revealed that aggregate pricing (=0.62, p < 0.001) and logistics expenses (=0.31, p < 0.05) are the predominant cost drivers in sustainable concrete production, whereas aggregate technical quality contributes a smaller, measurable influence (=0.09, p > 0.05). The exceptional coefficient of determination (R2=0.89) substantiates the model's predictive power and its practical utility for cost management and optimization within eco-friendly concrete systems. Ultimately, this research emphasizes the critical necessity of converging environmental, technical, and economic data for effective resource stewardship. It also proposes future scholarly endeavors should focus on integrating real-time monitoring and advanced digital supply chain technologies to further bolster the sustainability credentials of the domestic construction industry.
Co-Authors A. Ferina Herbourina Bonita Amar Ma’ruf Hamri Andi Ibrahim Yunus Andi Muhammad Nur Padli Andi Muhammad Nurpadli Andi Nuraliyah Andi Rista Irawati Tanrasula Anindya Monika Putri Anugrah Anugrah . Arbain Tata Arman Setiawan Arman Setiawan Arpin Tari Asrar Asrar Asri Mulya Setiawan Azhari Zahlim Chaeril Anwar Chaeruel, M Chaerul, Muh Clara Nita Fitriany Desi, Natsar Erny Farida Isroani Faris Jumawan, Faris Fatmawati Rachim Firman Paledung Fudlailah, Pratiwi Gusty, Sri Harun, A. Yusuf Herwina Rahayu Putri Imran T, Muh. Ismail Marzuki Lismawati, Lismawati M. Iqbal Mahmud Mahmud Masdiana Meldawati Artayani Muh Arief Muzakkir Muh Yusuf Harun, A Muhammad Chaerul Muhammad Hunsan Muhammad Ihsan Muhammad Yusuf Ali Mulyadi Mulyadi Musahir, Fajar Mustaan, Mustaan Nur Khaerat Nur Nur Zaman POPPY INDRAYANI, POPPY Popy Indrayani Popy Indrayani Putu Artawan, I Rachim, Fatmawaty Rahman, Muhammad Junaedy Risamawarni Risamawarni Rita Hardianti Aris Rita Hardianti Aris Ritnawati Makbul Rudi Rudi Selfina Gala Setiawan, Asri Mulya Sri Gusty Takwin Takwin Vina Levia Budiman Violana Tandioga Yudha Alam , Gigih Yunus, Andi Ibrahim Yusuf Harun, A Zaman, Nur Zulharnah Hasan Ramli