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All Journal Jurnal Transportasi Journal of Engineering and Technological Sciences Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Jurnal Teknik Sipil Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Berkala Forum Studi Transportasi antar Perguruan Tinggi
Harmein Rahman
Program Studi Magister Teknik Sipil, Fakultas Teknik Sipil dan Lingkungan-Institut Teknologi Bandung Jl. Ganesa No. 10 Bandung 40132.
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Social Sciences Transportation

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KAJIAN STABILISASI TANAH DENGAN SEMEN DAN BAHAN TAMBAH SEBAGAI LAPIS PONDASI PADA PERKERASAN JALAN (Studi Kasus : Tanah dari Kawasan Ibu Kota Nusantara) Tana, Anglin; Wibowo, Sony Sulaksono; Rahman, Harmein
Jurnal Teknik Sipil Vol 31 No 1 (2024): Jurnal Teknik Sipil - Edisi April
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.1.6

Abstract

Abstrak Pembangunan IKN yang masif berdampak pada tingginya kebutuhan agregat sehingga harus disuplai dari luar pulau yang menyebabkan tingginya biaya konstruksi pembangunan jalan. Kajian ini menyelidiki pemanfaatan tanah lokal sebagai lapis pondasi untuk mengurangi kebutuhan agregat dan biaya konstruksi. Sampel tanah dari IKN diklasifikasikan sebagai Silty Sand, dengan kandungan butiran halus rendah, tingkat keasaman rendah, kadar sulfat rendah, dan bebas dari bahan organik, sehingga tanah ini layak untuk campuran tanah semen. Suatu campuran tanah semen yang digunakan sebagai lapis pondasi harus mencapai kuat tekan target (7 hari) 2400 kPa dan kehilangan berat di bawah 7%. Pengujian UCS dan Wetting-Drying digunakan untuk mengevaluasi parameter kekuatan dan durabilitas tersebut. Campuran tanah semen tidak selalu memberikan sifat-sifat campuran yang memadai sebagai lapis pondasi. Campuran tanah dengan 13% semen memenuhi persyaratan kekuatan, tetapi tidak memenuhi persyaratan durabilitas karena kehilangan beratnya yang tinggi (15,90%). Penambahan bahan tambah pada campuran tanah semen dapat memperbaiki kinerja campuran. Penambahan 1% bahan tambah pada campuran tanah semen, dapat menurunkan kehilangan berat hingga 57,45%. Campuran tanah dengan 13% semen dan 1% bahan tambah menghasilkan kuat tekan (7 hari) sebesar 2964,6 kPa dan kehilangan berat sebesar 6,77%, sehingga campuran ini memenuhi persyaratan kekuatan dan durabilitas sebagai lapis pondasi tanah semen (SCB). Kata-kata Kunci: Kuat tekan, kehilangan berat, tanah semen, bahan tambah, lapis pondasi, perkerasan jalan, ibu kota nusantara. Abstract The massive development of Nusantara Capital City requires a large amount of aggregates, which must be transported from outside the island, increasing construction costs. This study investigates the use of local soil as a base layer to reduce aggregate demand and construction costs. Soil samples from the Nusantara Capital City area are classified as SM, with a high coarse fraction, low fines content (<50%), low acidity, low sulfate content, and free of organic matter, making them suitable for soil-cement mixtures. A soil-cement mixture used as a base layer must achieve a target compressive strength (7 days) of 2400 kPa and a weight loss below 7%. UCS and Wetting-Drying tests were used to evaluate these strength and durability parameters. The soil-cement mixture without additives did not meet the durability requirement due to high weight loss (15.90%). Adding 1% admixture reduced the weight loss by 57.45%. The mixture with 13% cement and 1% admixture achieved a 7-day compressive strength of 2964.6 kPa and a weight loss of 6.77%, meeting the strength and durability requirements for soil-cement base (SCB). Keywords: UCS, weight loss, soil cement, additive, base layer, pavement, nusantara capital city.
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.
Co-Authors Affendi, Furqon Agung Hari Widianto Agung Hari Widianto, Agung Hari Aine Kusumawati Asrie, Betarokhmah Nuriva Bambang Sugeng Subagio Bambang Sugeng Subagio Bambang Sugeng Subagio Bambang Sugeng Subagio Bambang Sugeng Subagio Bambang Sugeng Subagio Bambang Sugeng Subagio Bambang Sugeng Subagio Bambang Sugeng Subagio Christ Andy Vic Sinuhaji Eri Susanto Hariyadi, Eri Susanto Eva Wahyu Indriyati Eva Wahyu Indriyati, Eva Wahyu Febri Zukhruf Frisky Ridwan A.Melania Care Frisky Ridwan A.Melania Care, Frisky Ridwan A.Melania Furqon Affendi Hansen Samuel Arberto Gultom Harnedi, Raihan Arditama Hendarto, Sri Iman Adiwidodo, Ariefian Indra Maha Irvayana, I Putu Dika Kang, Ilhwan Kim, Yongjoo Lee, Kanghun Leo Sentosa Maha, Indra Meilinda Atika Rachman Melati, Talitha Nasuhi Zain Novita Pradani Nyoman Suaryana Prayoga Luthfil Hadi R Anwar Yamin Rachman, Meilinda Atika Rindu Twidi Bethary, Rindu Twidi Rizak Taruna Zega Rudy Hermawan Karsaman Russ Bona Frazila Sihombing, Atmy Verani Rouly Sinuhaji, Christ Andy Vic Siregar, Fanny Tri Novitasari Sony Sulaksono Sony Sulaksono Sony Sulaksono Wibowo, Sony Sulaksono Sri Hendarto Subagio, Bambang Sugeng Subagio, Bambang Sugeng Tana, Anglin Taufiq Suryo Nugroho Teknik Sipil, Jurnal Tilaka Wasanta Yans Mahendra Yans Mahendra Zega, Rizak Taruna