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All Journal Jurnal Penelitian Teknik Sipil Konsolidasi
Andi Rezki Indayani
Program Studi Teknik Sipil, Fakultas Teknik, Universitas Bosowa
Civil Engineering, Building, Construction & Architecture Engineering Materials Science & Nanotechnology

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Penggunaan Soil Stabilizer Dan Abu Sekam Padi Pada Tanah Lempung Terhadap Parameter Kuat Tekan Bebas Dan Kuat Geser Langsung Andi Rezki Indayani; Syahrul Sariman; Eka Yuniarto
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 2 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Mei 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i2.6555

Abstract

Clay soil easily expands and shrinks due to changes in water content, which reduces its bearing capacity and may damage constructions. To address this issue, a stabilization method was applied by adding rice husk ash in proportions of 5%, 10%, and 15%, along with 12% soil stabilizer containing pozzolanic compounds to improve the soil’s mechanical properties. The addition of rice husk ash was accompanied by a reduction in the same proportion of clay soil. This study aims to analyze the effect of combining these two materials on the shear strength and unconfined compressive strength parameters of clay soil through laboratory testing. The mixture variations were tested to determine the most optimal composition. The results showed that adding 10% rice husk ash and 12% soil stabilizer produced the best improvement, with the highest shear strength value of 0.764 kg/cm² and the highest unconfined compressive strength value of 0.716 kg/cm². The addition of 12% soil stabilizer increased shear strength by 12.23% and unconfined compressive strength by 18.59%. These findings demonstrate that the combination of rice husk ash and soil stabilizer is effective in strengthening clay soil and has potential applications in civil engineering projects requiring improved soil bearing capacity.
Co-Authors Eka Yuniarto Syahrul Sariman