Karimah, Maslin Akhlaqul and Dr. Ir. Arief Rachmansyah, - and Eko Andi Suryo,, ST., MT., Ph.D (2014) Pengaruh Penambahan Bahan Campuran dengan Komposisi 75% Fly Ash dan 25% Slag Baja pada Tanah Lempung Ekspansif Terhadap Nilai CBR dan Swelling. Sarjana thesis, Universitas Brawijaya.
Abstract
Tanah merupakan salah satu jenis material yang selalu berhubungan dengan konstruksi, baik konstruksi bangunan maupun konstruksi jalan. sehingga tanah menjadi komponen yang sangat diperhatikan dalam perencanaan konstruksi, untuk itu dalam melakukan perencanaan konstruksi harus dilakukan penyelidikan terhadap karakteristik dan kekuatan tanah. Tanah yang diselidiki adalah tanah yang terdapat di wilayah Bojonegoro khususnya Desa Ngasem yang merupakan jenis tanah lempung ekspansif. Tanah lempung ekspansif merupakan tanah yang memiliki kandungan mineral montmorillonite yang sangat mudah menyerap air dalam jumlah yang banyak sehingga tanah mempunyai kepekatan terhadap pengaruh air dan sangat mudah mengembang. Besarnya pengembangan dan penyusutan tidak merata sehingga menimbulkan differential movement pada permukaan yang menyebabkan kerugian-kerugian konstruksi. Penelitian dilakukan pada tanah asli dan juga tanah asli yang ditambahkan fly ash dan slag baja sebagai bahan stabilisasi dan digunakan 3 variasi bahan campuran dengan komposisi 75% fly ash dan 25% slag baja yaitu 5% bahan campuran (3,75% fly ash + 1,25% slag baja), 10% bahan campuran (7,5% fly ash + 2,5% slag baja), dan 15% bahan campuran (11,25% fly ash + 3,75% slag baja). Dari hasil penelitian tersebut didapatkan bahwa kadar air optimum, nilai indeks plastisitas, dan nilai swellingnya mengalami penurunan, sedangkan berat isi kering dan nilai CBR mengalami peningkatan. Untuk kondisi yang paling optimum didapatkan pada penambahan 5% bahan campuran atau 3,75% fly ash + 1,25% slag baja dimana didapatkan nilai CBR sebesar 7,28333% dan nilai swelling optimum sebesar 0,356%.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2014/297/051403916 |
| Subjects: | 600 Technology (Applied sciences) > 624 Civil engineering |
| Divisions: | Fakultas Teknik > Teknik Sipil |
| Depositing User: | Hasbi |
| Date Deposited: | 15 Sep 2014 10:38 |
| Last Modified: | 12 Nov 2021 06:09 |
| URI: | http://repository.ub.ac.id/id/eprint/142582 |
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A._LEMBAR_PERSETUJUAN,PENGESAHAN,ORISINALITAS.pdf Download (1MB) |
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7._ABSTRAK.pdf Download (1MB) |
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C._DAFTAR_ISI,TABEL,GAMBAR,LAMPIRAN.pdf Download (1MB) |
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