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Tika Ermita Wulandari
UNIVERSITAS MEDAN AREA
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IMPROVEMENT OF SOIL BEARING CAPACITY BASED ON MODERATE VOLUME USING RICE HUSK ASH Tika Ermita Wulandari; Mitra Musika Lubis; Hermansyah
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 2 No. 11 (2023): OCTOBER
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v2i11.285

Abstract

Good soil is soil that has good stability and load-bearing capacity for any construction built on it. However, the existing soil conditions may not possess sufficient load-bearing capacity, necessitating a method to improve it. For instance, in North Sumatra, the soil is relatively soft and predominantly used for agriculture. Rice husk ash is a byproduct of rice farming and exhibits pozzolanic properties, making it a potential alternative for enhancing soil load-bearing capacity. Typically, soft soil is fine-grained, has high moisture content, high saturation, high porosity, high initial pore pressure, low shear strength, and significant potential for settlement under increasing effective stress. This research aims to improve soil load-bearing capacity by using rice husk ash with varying mixtures of 0%, 4%, 8%, 12%, 16%, and 20%. Soil samples were collected in the Lubuk Pakam area of North Sumatra. Testing included soil physical properties, such as soil index properties, and soil mechanics tests conducted in the soil mechanics laboratory at the University of Santo Thomas, Medan.Based on the tests, the soil was categorized as organic soil, highly cohesive, and had high plasticity. According to the USCS classification, it falls into the fine-grained or organic soil category with the symbol PT. The CBR values after 7 days of curing with various lime additions of 0%, 4%, 8%, 12%, 16%, and 20% were found to be 0.98, 1.18, 2.00, 4.80, 13.00, and 18.80, respectively. Therefore, it can be concluded that the higher the proportion of rice husk ash in the mixture, the higher the CBR value. This can potentially enhance farmers' income through rice husk sales.
Co-Authors Abdinata, Dwi Jaya Ahmad Tulus Kurniawan Alitopan Sibarani Aulia Akbar Boysa Banjarnahor Dandi Alehanro Sagala Dicky Hamdani Tampubolon Dilla Adinda Meilia Egi Surya Pratama Eva Yulina Faiz Azmi Lubis Fredy Kurniawan Hakas Prayuda Hermansyah Hutagaol, Samuel Parlindungan Jaka Suranto Jefri Historisman Waruwu Jhon Fernando Siagian Kamaluddin Kamaluddin Lubis, Faiz Azmi M. Rizky Maghfirah Maghfirah Mahda, Nuril Marco Samuel Pangihutan Panggabean Marwan Marwan Mega Puspita Sari Melloukey Ardan Mitra Musika Lubis Muhammad Alman Falathi Muhathir, Muhathir Nainggolan, Unicolas Satria Oktavianus Nuril Mahda Rangkuti Purba, Musa Affandy Ramadhan, Fikri Rambe, Yunita Syafitri Reakha Zulvatricia Rindi Oktaviana Roesyanto Rudi Iskandar Samsul A Rahman Sidik Hasibuan Saragih, Muhammad Sultan Mubaraq sari, Nela Permata Saufa Yardha Moerni Sianipar, Aris Julianto Sianturi, Pernando Wijaya Suranto Suranto Suranto Suranto Suranto Suranto Suraya Hani Adnan Surbakti, Rudianto Syahputra, Ananda Tengku Anita Raja Hussin Tommy Prasetyo Wibowo Unicolas Satria Oktavianus Nainggolan Wibowo, Tommy Prasetyo william, Jean Yopan Rahmad Aldori Yulina, Eva Yuni Erlianti Laia