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Jasman Jasman
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The Aggregate Gradation in Road Reconstruction Hakzah, Hakzah; Andriansyah, Andriansyah; Mustakim, Mustakim; Jasman, Jasman
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.16068

Abstract

Reconstruction of the road section uses the flexible pavement method where aggregate material is the main component of the structure. Choosing the right aggregate gradation and meeting the specification requirements will greatly determine the quality of the road. This research aims to determine the characteristics of aggregate gradation sourced from stock files and compare the results of aggregate gradation analysis of job mix design planning consultants. The method uses laboratory testing. Aggregate wear test results 2-3 = 5.36%, 1-2 = 6.14%. The absorption value of aggregate 2-3 = 0.87%, 1-2 = 1.79%, 0.5 - 1 = 1.80% and stone ash = 2.27%. Values of dry specific gravity, SSD specific gravity, and apparent specific gravity of aggregate 2-3 = 2.73, 2.69, 2.66, 1-2 = 2.72, 2.64, 2.62 0.5- 1 = 2.70, 2.62, 2.58, rock ash = 2, 53, 2.59, 2.69. These values meet the requirements of the 2018 Bina Marga specifications, 2nd revision. The comparison of the results of the field aggregate gradation test analysis with the results of the job mix design analysis is the same because the aggregates tested come from the same stock file. The results of the sieve analysis test showed that the coarse aggregate fineness modulus of 2-3, 1-2, and 0.5 - 1 did not meet the specification standards, while the fine aggregate for stone ash did. The value that does not meet is caused by not paying attention to the additional note that the coarse aggregate retained on the 1" sieve is ±6%.
Impact of Road Gradient on Fuel Consumption, Fuel Rate and CO₂ Emissions of Freight Transport Abdul, Rahman; Hakzah, Hakzah; Andriyani, Andriyani; Jasman, Jasman; Kasmaida, Kasmaida
ASTONJADRO Vol. 15 No. 1 (2026): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v15i1.21234

Abstract

This study investigates the impact of road gradient on fuel consumption, fuel rate (FR), and CO₂ emissions in freight transport vehicles with two-axle and three-axle configurations. The research was conducted on a 250-meter road segment with a 0.067 rad (~7%) gradient in front of Taman Rekreasi Datae, Sidenreng Rappang Regency, South Sulawesi, Indonesia. A quantitative mathematical model, based on vehicle technical parameters and empirical formulations from previous studies, was applied. Results show that increasing the gradient from 0 to 0.067 rad raised fuel consumption in two-axle trucks from 0.0356 L to 0.0857 L and in three-axle trucks from 0.1463 L to 0.3269 L. The FR for two-axle trucks increased from 0.0014 L/s to 0.0056 L/s, while for three-axle trucks it rose from 0.0033 L/s to 0.0124 L/s. CO₂ emissions from two-axle trucks increased from 0.0958 kg to 0.3941 kg, and from 0.2310 kg to 0.8807 kg for three-axle trucks. The relative increase was higher for two-axle trucks (311%) than for three-axle trucks (281%), due to axle load distribution, engine capacity, and transmission ratio. These findings highlight the need to consider vehicle configuration and topography in route planning to minimize fuel consumption and emissions in hilly regions.
Co-Authors - Hwihanus A, Yufrizal Abd. Rasyid Syamsuri Abdul Aziz Abdul Gani, Kamal Abdul, Rahman Abyan, Sayyid Achmad, Ashfa Adnan Adnan Adnan, Adnan Adnan Adris Ade Putra Agustina Ahmad Hamid, Ahmad Ahmad, Ramadan M. Aldio, Muhammad Fikhri Alkadri Alkadri Ambiyar, Ambiyar Amelia, Armita Aminuyati Andre Kurniawan Andriani , Cici Andriansyah Andriansyah Andriyani Andriyani Anwar, Hindi Apriyanto, Bejo Arafat, Andril Ardi, Junil Ardiyansyah, M Iksan Arifin, Muh. Aripin, Septian Arisandi, Duddy Arjuna, Arjuna Arman Arman Arwizet Arwizet, Arwizet Asmauna, Azis Aspar, Fathir Asrul Asrul Aswar Aswar Azis, Rudi Bahrul Amin Baital, Muhammad Syarif Bakty, Andi Fatimah Maoudy A Batubara, Ummi Khairani Bayu Adi Nugroho, Bayu Adi Beda, Yosep Budi Syahri Bulkia Rahim Cahyani, Roro Candhy, Mamarasi Chandra, Shandika Cici Andriani Darwin P. Lubis, Darwin darwis darwis, darwis Desmaniar, Rani Dini Onasis Djami, Leopold Alexander Djara, Apriana Duka, Risman S. Edy Suprapto Effendi, Marwan Eko Indrawan Eko Susanto Elne Vieke Rambi Erizon, Nelvi Erna Dewita Fadil Maiseptian Fadillah, Egi Fadly, Imam Fahrezi, Muhammad Shadiq Fahrizal Fahrizal Fangky Antoneus Sorongan Febri Prasetya Fernanda, Firza Fiki Efendi Fikri, Ikhsanul Gafar, Muammar Saidul Hafifurrezy, M. Hakzah Hamarung, Mukhlis Amin Hamka Hamka, Hamka Hamsu Hanafi, Hamsu Hamsyah, Hamsyah Handa, Muhamad Idham Harman Harman, Harman Haron, Rosmawati Hasanuddin Hasanuddin Hasbullah Hasddin, Hasddin Haydir, Haydir Hazriani, Hazriani Hedwigis Esti Riwayati Herry Rachmat Widjaja inda, nur Indrawan , Eko Irfai, Irfai Irzal, Irzal Ismail, Havis istiqomah istiqomah Itu, Katrina Joy Victor Imanuel Sambuaga Judijanto, Loso Juliana, Andi Junil Adri Jusran, Mokoginta K, Basri Kabuhung, Anselmus Kaco, Suardi Kamarudin, Moh Khairul Amri Kasim, Hasdi Syahid Kasimir Sarifudin Kasmaida kasmaida Katiandagho, Dismo Khasanah, Ainun Uswatul La Karimuna Lake, Darius V. Lalangpuling, Indra Elisabet Landang, Florida Lapoliwa, Desi Kritiani Lawa, Yosep Lestari, Yola Limahelu, Ferdinand Alberth Loleh, Adrianus Mahaswari, Ni Nyoman Dechinta Dwi Mahyudin, Dedi Malik, Syaefulloh Maulana Manesi, Damianus Mardi, Feldia Markonah, Markonah Masri Ridwan, Masri Menungsa, Abdul Sarlan Meyok, Greiviany Yunaika Mizkazola, Indri Moh Sabran Sabran Mudinillah, Adam Muhammad Ali Makaminan, Muhammad Ali Muhammad Iqbal Muhammad Risal, Muhammad Muhammad Rusdi Muis B, Abd Muis B, Abd. Mujur, Raftly M. Mukaddas, Jamal Murisal Murisal Musawantoro, Muhammad Mustakim Mustakim Muzaki, Saepul Nabila Tasrif Nanang Qosim Nasrul Edi Santoso Nawir T, Muh Ningsih, Jusmita Nofri Helmi, Nofri Noveliza, Felia Nuraeni, Vira Nurfajri Nurfajri, Nurfajri Nurhasanah Nurhasanah Othman, Akmal Aini Parera, Lolita A. M. Pascoal, Kevin G. Pebrian, Pebrian Pepito, Ma Leona Maye B. Pratama, Heru Pratama, Raymon Pratomo, Muhammad Agung Primawati , Primawati Primawati Primawati, Primawati Priyono Priyono Purwantono, Purwantono Purwitasari, Paramitha Putra, Rahmat Mardiansyah Putra, Randi Purnama Putrarianda, Mexi Quick Calvin, Iqbal DN Rahmat Hidayat Ramadhan, Fanny Fadillah Refdinal, Refdinal Remon Lapisa Retnaningsih, Inung Wijayanti Ridarmelli Ridarmelli Ridawan, Masri Rizal Indra Tjahya Rizal Mawardi Rokot, Agus Roma, Asri Nova Ronny Ronny safinah, safna Safitri Maladeni, Eva Salasiah A, Salasiah A SALASIAH SALASIAH, SALASIAH Sambari, Villa Evadelvia Ginal Sambuaga, Joy V. I. Sangadjisowohy, Idayani Sanning, Sanning Saputra, Aprizal Saputra, Dimas Aulia Semuel Layuk Septiawisda, Maya Shiddiq, Abdul Rahim Simatupang, Minson Sirama, Sirama Siska Mandalia Sri Rizki Putri Primandari Suari, Muhammad Rahmadi sudiani, yoni Sudirman Sudirman Suharyanto Sukmajaya, Fajar Suleman, Rahman Sunati, Nurmila Suwarja, Suwarja Syahruddin Syahruddin Syahrul Syahrul SYAMSU ALAM Syaputra, Afzan Tasrif , Nabila Taufik Taufik Taufik Taufiq Akbar Tespoer, Kimberly June Thaheransyah Tin, Chau Trung Tomia, Sumiati Tonjaya, I Gede Trihatmoko, Huda Tumbol, Michael V.L. Tupail, Fharhan Utami, Eva Yuniarti Wa Ode Sifatu Wahyuni, Sherly Wakhinuddin Wakhinuddin, Wakhinuddin Waskito Waskito, Waskito Widarto, Hendro Wildy, Fadhlan Wulansari, Rizky Ema Yantony, Didit Yolli Fernanda Yufrizal Yufrizal, Yufrizal Yusuf, Muh. Wahyu Yuyun, Yuyun Zainal Abadi Zarabiyu, Nastya Chila Zulhafril, Herman Zuwirda, Zuwirda