PENGARUH KADAR AIR PADA KEKUATAN GESER PADA TANAH LEMPUNG

AYYUBI, SHALAHUDDIN AL (2025) PENGARUH KADAR AIR PADA KEKUATAN GESER PADA TANAH LEMPUNG. S1 thesis, Universitas Mercu Buana Jakarta.

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Abstract

This study examines the effect of water content and bentonite mixture on cohesion, index properties, and soil consolidation parameters in clay. Increasing water content reduces cohesion due to particle lubrication, leading to slippage and decreased shear strength. Clay soil with high water content becomes looser and more prone to deformation. The addition of bentonite increases plasticity and water absorption, causing a rise in liquid limit and plasticity index. Soil with higher bentonite content experiences significant volume changes due to expansion as water content increases. Consolidation parameters show that water content and bentonite affect the Over Consolidation Ratio (OCR), coefficient of consolidation (Cv), and compressibility (mv).Soil mixed with high bentonite content has greater compressibility, slowing down the consolidation process. Overall, this study provides insights into how the combination of water content and bentonite influences the mechanical properties of clay soil. These findings are useful for geotechnical planning, particularly in soil stabilization and foundation design. Keywords: water content, bentonite, cohesion, consolidation, plasticity index, clay soil. Penelitian ini membahas pengaruh kadar air dan campuran bentonit terhadap kohesi, indeks properties, dan parameter konsolidasi tanah lempung. Peningkatan kadar air menurunkan kohesi akibat pelumasan antar partikel, yang menyebabkan kelongsoran dan penurunan kekuatan geser. Tanah lempung dengan kadar air tinggi lebih longgar dan rentan terhadap deformasi. Penambahan bentonit meningkatkan plastisitas dan daya serap air, menyebabkan batas cair dan indeks plastisitas meningkat. Tanah dengan bentonit lebih tinggi mengalami perubahan volume yang signifikan akibat ekspansi saat kadar air bertambah. Parameter konsolidasi menunjukkan bahwa kadar air dan bentonit memengaruhi nilai Over Consolidation Ratio (OCR), koefisien konsolidasi (Cv), dan kompresibilitas (mv).Campuran tanah dengan bentonit tinggi memiliki kompresibilitas lebih besar, memperlambat proses konsolidasi. Secara keseluruhan, penelitian ini memberikan wawasan tentang bagaimana kombinasi kadar air dan bentonit memengaruhi karakteristik mekanik tanah lempung. Hasil penelitian ini berguna dalam perencanaan geoteknik, terutama dalam stabilisasi tanah dan perancangan fondasi. Kata Kunci: kadar air, bentonit, kohesi, konsolidasi, indeks plastisitas, tanah lempung.

Item Type:	Thesis (S1)
Call Number CD:	FT/SIP. 25 039
NIM/NIDN Creators:	41120120041
Uncontrolled Keywords:	kadar air, bentonit, kohesi, konsolidasi, indeks plastisitas, tanah lempung.
Subjects:	100 Philosophy and Psychology/Filsafat dan Psikologi > 150 Psychology/Psikologi > 155 Differential and Developmental Psychology/Psikologi Diferensial dan Psikologi Perkembangan > 155.9 Environmental Psychology/Psikologi Lingkungan > 155.96 Influence of Restrictive Environments/Pengaruh Lingkungan Perbatasan > 155.964 Subterranean Structures/Struktur Rahasia, Struktur Bawah Tanah 500 Natural Science and Mathematics/Ilmu-ilmu Alam dan Matematika > 550 Earth Sciences/Ilmu tentang Bumi > 553 Economic Geology/Geologi Ekonomis > 553.7 Water, Fresh Water/Air 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 624 Civil Engineering/Teknik Sipil
Divisions:	Fakultas Teknik > Teknik Sipil
Depositing User:	khalimah
Date Deposited:	11 Mar 2025 07:21
Last Modified:	11 Mar 2025 07:21
URI:	http://repository.mercubuana.ac.id/id/eprint/94790

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