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All Journal Prosiding Forum Studi Transportasi Antar Perguruan Tinggi Jurnal Rekayasa Sipil dan Lingkungan Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Proceeding ISETH (International Summit on Science, Technology, and Humanity) INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Rahim, Irwan Ridwan
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Medicine & Pharmacology Public Health Social Sciences Transportation Other

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Pengaruh Material Daur Ulang Pasca Bencana dan Asbuton Butir Terhadap Sifat Volumetrik Campuran Beton Aspal Lapis Aus Rahim, Irwan Ridwan; Pradani, Novita; Irmawaty, Rita; Tjaronge, Muhammad Wihardi
Jurnal Rekayasa Sipil dan Lingkungan Vol 7 No 1 (2023): Jurnal Rekayasa Sipil dan Lingkungan
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jrsl.v7i1.36609

Abstract

Pemanfaatan material perkerasan jalan pasca bencana di Kota Palu dan penggunaan material lokal yaitu Asbuton Butir Lawele diharapkan dapat bersinergi dengan baik pada campuran Beton Aspal Lapis Aus (AC-WC). Tujuan dari penelitian ini adalah untuk menguji pengaruh penggunaan material daur ulang (RAP) dan asbuton butir terhadap sifat volumetrik campuran AC-WC. Bahan RAP yang digunakan dalam campuran adalah 20% dari berat campuran dan variasi asbuton yang digunakan adalah 0%, 3%, 6% dan 9% dari berat campuran. Berdasarkan hasil pengujian diketahui bahwa penambahan material RAP dan asbuton butir pada campuran AC-WC dapat mempengaruhi sifat volumetrik campuran. Nilai rongga dalam campuran (VIM) dan rongga dalam agregat mineral (VMA) akan meningkat seiring dengan peningkatan persentase asbuton. Sebaliknya, rongga yang terisi aspal (VFB) akan berkurang dengan bertambahnya jumlah asbuton. Sehingga dapat dikatakan bahwa campuran AC-WC yang mengandung RAP dengan penambahan asbuton butir, akan mengalami perubahan volumetrik jika dibandingkan dengan campuran tanpa RAP dan asbuton butir. ABSTRAK Utilization of post-disaster pavement materials in Palu City and Indonesian local materials, namely Asbuton Butir Lawele, are expected to synergize well in Asphaltic Concrete Wearing Course (AC-WC) mixture. This studio aims to examine the effect of recycled materials (RAP) and granular asbuton on the volumetric properties of the AC-WC mixture. The RAP material used in the mix is 20% of the mixture weight and variations of asbuton used are 0%, 3%, 6% and 9% of the mixture weight. Based on laboratory results, it was found that the addition of RAP material and granular asbuton to the AC-WC mixture could affect the volumetric properties of the mix. The value of voids in the mixture (VIM) and voids in mineral aggregates (VMA) will increase as the proportion of asbuton increases. On the other hand, the void filled with asphalt (VFB) will decrease with the increasing number of asbuton. So it can be said that the AC-WC mixture containing RAP with the addition of granular asbuton, will experience volumetric changes compared to the mix without RAP and granular asbuton.
Technical Guidance for Environmental Management Efforts at Nature School of Le Cendekia to achieve Adiwiyata Harusi, Nurul Masyiah Rani; Zakaria, Rasdiana; Rahim, Irwan Ridwan; Djamaluddin, Ibrahim; ., Fakhruddin
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 1 (2024): Community Development
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i1.440

Abstract

In the context of efforts to achieve Adiwiyata status at Le Cendekia Boarding School, the Department of Environmental Engineering at Hasanuddin University (UNHAS) has organized a technical guidance program. This program is an annual activity that focuses on environmental management and aims to increase environmental awareness among students and realize an environmentally conscious school. The technical guidance activities cover various topics such as Adiwiyata, drinking water management, wastewater management, waste management, biogas production, and the importance of green open spaces. During the program, Pre-Test and Post-Test assessments were conducted on 17 students to measure their understanding before and after receiving the information. Additionally, field visits to Le Cendekia Boarding School were conducted to observe the practical implementation of environmental practices, including waste management, eco enzyme production, garden produce, and livestock. The results of the Pre Testshowed an average score of 51.18, while thePost Test average score was 64.71. This activity demonstrates an improvement in students' understanding and awareness of environmental issues and practical solutions that can be implemented to preserve the environment. The technical guidance program is expected to support Le Cendekia Boarding School in its efforts to achieve Adiwiyata School status and promote sustainable environmental awareness.
Evaluasi Nilai Indeks Penetrasi Bitumen Daur Ulang Pradani, Novita; Irmawaty, Rita; Tjaronge, Muhammad Wihardi; Rahim, Irwan Ridwan
Prosiding Forum Studi Transportasi Antar Perguruan Tinggi Vol 11 No 2 (2024): Prosiding Forum Studi Transportasi antar Perguruan Tinggi
Publisher : FSTPT Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The penetration index (PI) of bitumen is one of the parameters to measure the temperature sensitivity of bitumen. The bitumen quality will decrease if the bitumen's resistance to temperature changes decreases. This evaluation was based on previous research that used recycled bitumen from the extraction process. Bitumen modification was done by adding different percentages of recycled bitumen to fresh bitumen. PI values were determined using the Pfeiffer and Van Doormall equation, which shows the relationship between penetration and bitumen softening point. Based on the analysis, it was found that adding recycled bitumen up to 30% can increase the PI of bitumen, but the PI of bitumen will decrease with the addition of RAP. Adding recycled bitumen can reduce the bitumen's resistance to temperature, so a rejuvenating agent is needed to restore the physical properties of bitumen containing a high percentage of recycled bitumen. ABSTRAK Indeks penetrasi (PI) bitumen merupakan salah satu parameter untuk mengukur sensitivitas bitumen terhadap temperatur. Sensitivitas bitumen terhadap temperatur dipengaruhi oleh perubahan viskoelastis bitumen. Kualitas bitumen akan menurun bila ketahanan bitumen terhadap perubahan temperatur juga menurun. Evaluasi ini didasarkan pada penelitian sebelumnya yang menggunakan bitumen daur ulang dari proses ekstraksi. Modifikasi bitumen dilakukan dengan menambahkan bitumen daur ulang dengan presentase yang berbeda pada fresh bitumen. Nilai PI ditentukan menggunakan persamaan Pfeiffer dan Van Doormall, yang menunjukkan hubungan antara nilai penetrasi dan nilai titik lembek bitumen. Berdasarkan hasil analisis diperoleh bahwa penambahan bitumen daur ulang hingga 30% dapat meningkatkan nilai PI bitumen, namun PI bitumen akan menurun seiring penambahan RAP. Berarti bahwa penambahan bitumen daur ulang dapat menurunkan ketahanan bitumen terhadap temperatur sehingga bahan peremaja diperlukan untuk mengembalikan sifat fisik bitumen yang mengandung bitumen daur ulang dengan persentase yang tinggi.
ASSESSMENT OF CARBON EMISSIONS FROM THE WASTE MANAGEMENT SECTOR IN AJATAPPARENG REGION, SOUTH SULAWESI, INDONESIA Rahim, Irwan Ridwan; Sari, Kartika; Mukrim, Muhammad Ihsan Mukrim; Iman, Alfiyah Zhafirah; Taweesan, Achara; Swe, Zin Aung
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 8, NUMBER 2, OCTOBER 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v8i2.24071

Abstract

Ajatappareng is a region in South Sulawesi Province, Indonesia which consists of four regencies and one administrative city. The regencies are Barru, Sidenreng Rappang, Pinrang, and Enrekang while the city is Parepare. The area has experienced a significant growth in terms of population which further leads to an increase in waste generation. Waste are a major challenge for environmental management especially due to the role in producing carbon emissions.  Aim: This study aims to assess the carbon emissions produced in waste management sector of the Ajatappareng Region. Methodology and results: The GHG Simulation-Version II spreadsheet was used to assess the GHG emissions from the transportation of waste in the respective regencies. Mathematical formulas were provided in the cells to calculate the GHG emissions of the simulation developed. Conclusion, significance, and impact study: The results showed that the volume of carbon emissions was 16,299.84 kg CO2-eq/month for Barru Regency, 17,076.03 kg CO2-eq/month for Sidrap Regency, 16,817.30 kg CO2-eq/month for Parepare City, 17,722.85 kg CO2-eq/month for Pinrang Regency, and 19,145.85 kg CO2-eq/month for Enrekang Regency. Moreover, the GHG emissions from mixed waste in the final disposal site were 918,531.01 kg CO2-eq/month, 1,733,537.85 kg CO2-eq/month, 1,404,917.59 kg CO2-eq/month, 1,723,004.12 kg CO2-eq/month, and 523,506.36 kg CO2-eq/month, respectively. Therefore, potential efforts are required to reduce CO2 emissions by optimizing waste transportation, promoting recycling, managing organic waste through composting, as well as improving collaborations with the private sector.
Cost Analysis of the Fukuoka Method Landfill System in North Kolaka Regency, Southeast Sulawesi, Indonesia Rahim, Irwan Ridwan; Jamaluddin, Abdulrahman
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2015: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2343

Abstract

Most waste disposal sites in developing country are still using open dumping and open burning. However, in developing countries, there are a lot of economic and technical problems with high level landfill technologies of first world countries, which makeimplementation of improvement is not feasible. Therefore, there is a significant need for transfer of landfill technology that is considered simpler, low cost, and that can be maintained locally. A method that provides these standards, which has recently gathered attention is the Fukuoka Method (semi-aerobic landfill).By life cycle cost analysis method, with the lifespan of the landfill is 20 years and an estimated volume of586,789 m3 (469,431tons), the required capital investment was about US$296,739 (natural clay liner)and US$463,406 (syntheticliner) or about US$0.63 and US$0.99/ton of waste. It is also calculated thatthe total cost of operation was about US$3,187,728 or US$6.79/ton of waste. The closure cost of the landfill was estimated to beUS$278,116 or US$0.59/ton of waste.
Co-Authors Harusi, Nurul Masyiah Rani IBRAHIM DJAMALUDDIN, IBRAHIM Iman, Alfiyah Zhafirah Irmawaty, Rita Jamaluddin, Abdulrahman Kartika Sari Muhammad Ihsan Muhammad Wihardi Tjaronge Novita Pradani Swe, Zin Aung Taweesan, Achara zakaria, rasdiana