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All Journal Inersia : Jurnal Teknik Sipil dan Arsitektur Teknisia Civil Engineering For Community Development De`Teksi : Jurnal Teknik Sipil Media Konstruksi : Jurnal Ilmiah Teknik Sipil
Yuli Fajarwati
Jurusan Pendidikan Teknik Sipil Dan Perencanaan, Fakultas Teknik, Universitas Negeri Yogyakarta
Civil Engineering, Building, Construction & Architecture Engineering Transportation

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Laboratory Model Test on The Sand Column for Reinforcement System of Flexible Pavement Fajarwati, Yuli; Dian Eksana Wibowo; Endaryanta; Amalina, Anisa Nur
Teknisia Vol 28 No 2 (2023): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol28.iss2.art1

Abstract

Flexible pavement failures in Indonesia are primarily attributed to weak subgrade conditions, necessitating soil reinforcement measures. This study aimed to enhance soil-bearing capacity through soil reinforcement experiments utilizing a mixture of sand columns, rice husk ash, and cement. A prototype was constructed, including a 1×1×1 m steel box, an IWF steel frame, a dial gauge, a steel plate, and a proving ring, to apply a load to soil arranged within the iron box using a 3-ton hydraulic jack. The study focused on a clay soil type (following the AASHTO method) and conducted soil reinforcement in four scenarios. The result shows that in all scenarios involving a sand column, Scenario 1: 3% sand, 3% rice husk ash, and 6% cement obtained a qult is 0.23 kg/cm2 and BCR 114.94%; Scenario 2: 3% sand, 6% rice husk ash, and 3% cement obtained a qult is 0.12 kg/cm2 and BCR 11.49%; Scenario 3: 6% sand, 3% rice husk ash, and 3% cement obtained a qult is 0.14 kg/cm2 and BCR 26.44%; Scenario 4: 6% sand, 6% rice husk ash, and 0% cement obtained a qult is 0.24 kg/cm2 and a BCR of 116.09%. Notably, scenario 4, featuring a column composition of 6% sand, 6% rice husk ash, and 0% cement, achieved a significant increase in bearing capacity (qult) with a value of 0.24 kg/cm2 and a high Bearing Capacity Ratio (BCR) of 116.09%. Scenario 1 was the most effective in reducing moisture content by 4% relative to the original soil moisture content, with a mixture comprising 3% sand column, 3% rice husk ash, and 6% cement. The findings suggest that applying soil columns can enhance the performance of flexible pavements.
Co-Authors AA Sudharmawan, AA Amalina, Anisa Nur Batuna, Nerizza Cheryl Salma Darmono Dian Eksana Wibowo Didik Purwantoro Elviana Endaryanta Endaryanta Endaryanta Enden Mina, Enden Fathonah, Woelandari Febriana Arum Dewi Fikri Faris Gilbran Althaf, Machammad Wally Hatutiningsih, Arum Dwi Hendra Dewata Kurniawan, Muhammad Adi Malik, Abdul Manason, Mikel Darren Maris Setyo Nugroho Muhammad Nuruzzaman Nisa, Mitsaq Addina Nugraheni, Risa Nur Oktaviani Widiastuti, Nur Oktaviani Rama Indera Kusuma Sabrianto Aswad, Sabrianto Sasmayaputra, Nur Alfian Sativa Sativa Setiawan, Riski Slamet Widodo Sunar Rochmadi Suwartanti, Suwartanti Syahrani, Luthfi Auliya Syamsudin, Rudi Nur Teuku Faisal Fathani Wahyu Wilopo William Wijaya Zaidun, Amat