Penggunaan Metode Soybean Crude Urease Calcite Precipitation (SCU-CP) dalam Meningkatkan Kuat Tekan Tanah Lempung Berpasir
DOI:
https://doi.org/10.26623/teknika.v21i1.13108Keywords:
Bearing Capacity, Calcite Precipitation, Sandy Clay Soils, Soybean, Unconfined Compressive StrengthAbstract
Kualitas tanah dasar, terutama jenis tanah lempung berpasir yang memiliki daya dukung lemah. Penelitian ini dilakukan untuk mengevaluasi efektivitas metode Soybean Crude Urease Calcite Precipitation (SCU-CP) dalam meningkatkan kekuatan tanah tersebut, dengan fokus pada pengujian kuat tekan bebas (qu) berdasarkan SNI 3638:2012. Sampel tanah dikumpulkan dari wilayah Jl. Vico Indonesia, Muara Badak, Kalimantan Timur. Metode SCU-CP dilakukan dengan mencampurkan larutan urea dan kalsium klorida (CaCl₂) pada konsentrasi 1 mol/L dan 1,5 mol/L, serta soybean powder dengan konsentrasi bervariasi antara 10 hingga 50 g/L. Setelah dilakukan pencampuran dan proses curing selama 7 hari, sampel diuji di laboratorium. Hasil pengujian menunjukkan bahwa metode SCU-CP secara signifikan meningkatkan sifat mekanik tanah. Nilai qu tanah asli sebesar 3,47 kg/cm² meningkat hingga 5,07 kg/cm² (kenaikan 48,78%) pada campuran reagen 1 mol/L dengan soybean 50 g/L, serta 4,42 kg/cm² (kenaikan 29,24%) pada campuran reagen 1,5 mol/L dengan soybean 40 g/L. Temuan ini mengindikasikan bahwa metode SCU-CP berpotensi sebagai alternatif stabilisasi tanah yang ramah lingkungan dan efektif.
References
Augusti, M. Y., Putra, H., & Yudhistira, I. (2022). Improvement of Peat Soil Settlement Parameter Using Soybean Crude Urease Calcite Precipitation (SCU-CP) Method. IOP Conference Series: Earth and Environmental Science, 1117(1). https://doi.org/10.1088/1755-1315/1117/1/012021
Badan Standardisasi Nasional. (2008). SNI 1964:2008 Cara Uji Berat Jenis tanah. In Standar Nasional Indonesia, Badan Standarisasi Nasional: Vol. (Nomor, hal. 1–14).
Badan Standardisasi Nasional. (2008). SNI 1965:2008 Cara Uji Penentuan Kadar Air untuk Tanah dan Batuan di Laboratorium. In Standar Nasional Indonesia, Badan Standarisasi Nasional (hal. 1–16).
Badan Standardisasi Nasional. (2008). SNI 1966:2008 Cara Uji Penentuan Batas Plastis dan Indeks Plastisitas Tanah (hal. 1–15).
Badan Standardisasi Nasional. (2008). SNI 1967:2008 Cara Uji Penentuan Batas Cair Tanah. In Standar Nasional Indonesia, Badan Standarisasi Nasional (hal. 1–25).
Badan Standardisasi Nasional. (2008). SNI 3423:2008 Cara uji analisis ukuran butir tanah. In Standar Nasional Indonesia, Badan Standarisasi Nasional (hal. 1–33).
Badan Standardisasi Nasional. (2012). SNI 3638:2012 Metode Uji Kuat Tekan Bebas Tanah Kohesif (hal. 19). https://www.academia.edu/37600885/SNI_3638_2012_Metode_uji_kuat_tekan_bebas_tanah_kohesif
Eni. (2022). Menentukan Tingkat Kelongsoran Tanah Lempung menggunakan Uji Kuat Geser Langsung. Angewandte Chemie International Edition, 6(11), 951–952., 04(Mi), 5–24.
Evstatiev, D. (1988). Engineering Geology, 25 (1988) 341--366. 25.
Kazemian, S., Huat, B. B. K., Prasad, A., & Barghchi, M. (2010). A review of stabilization of soft soils by injection of chemical grouting. Journal of Applied Sciences Research, 6(12), 5862–5868.
Khairunnisa, Z. N., Putra, H., & Erizal. (2023). Applicability of Soybean Crude Urease-Calcite Precipitation (SCU-CP) Method for Improvement of Expansive Soil. IOP Conference Series: Earth and Environmental Science, 1249(1). https://doi.org/10.1088/1755-1315/1249/1/012036
Kusumah, H., Nurholik, M. R., Riani, C. P., & Nur Rahman, I. R. (2023). Deep Learning for Pothole Detection on Indonesian Roadways. Journal Sensi, 9(2), 175–186. https://doi.org/10.33050/sensi.v9i2.2911
Marecos, V., Solla, M., Fontul, S., & Antunes, V. (2017). Assessing the pavement subgrade by combining different non-destructive methods. Construction and Building Materials, 135, 76–85. https://doi.org/10.1016/j.conbuildmat.2017.01.003
Ng, C. P., Law, T. H., Jakarni, F. M., & Kulanthayan, S. (2019). Road infrastructure development and economic growth. IOP Conference Series: Materials Science and Engineering, 512(1). https://doi.org/10.1088/1757-899X/512/1/012045
Putra, H., Erizal, Sutoyo, Simatupang, M., & Yanto, D. H. Y. (2021). Improvement of organic soil shear strength through calcite precipitation method using soybeans as bio-catalyst. Crystals, 11(9). https://doi.org/10.3390/cryst11091044
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