STABILISASI TANAH LEMPUNG DENGAN MENGGUNAKAN SERAT SABUT KELAPA MELALUI UJI KUAT GESER LANGSUNG ( DIRECT SHEAR TEST ) DI LABORATORIUM SKRIPSI Oleh SEBRIAN RAHMADI 07 172 077 JURUSAN TEKNIK SIPIL - FAKULTAS TEKNIK UNIVERSITAS ANDALAS PADANG 2014 STABILISASI TANAH LEMPUNG DENGAN MENGGUNAKAN SERAT SABUT KELAPA MELALUI UJI KUAT GESER LANGSUNG ( DIRECT SHEAR TEST ) DI LABORATORIUM SKRIPSI Diajukan sebagai syarat untuk menyelesaikan pendidikan Program Strata-1 pada Jurusan Teknik Sipil Fakultas Teknik Universitas Andalas Padang Oleh SEBRIAN RAHMADI 07 172 077 Pembimbing Ir. HENDRI GUSTI PUTRA, MT ANDRIANI, MT JURUSAN TEKNIK SIPIL - FAKULTAS TEKNIK UNIVERSITAS ANDALAS PADANG 2014 DAFTAR ISI ABSTRAK ................................................ Error! Bookmark not defined. DAFTAR ISI ........................................................................................ iii DAFTAR TABEL .................................... Error! Bookmark not defined. DAFTAR GAMBAR ............................... Error! Bookmark not defined. DAFTAR LAMPIRAN ............................ Error! Bookmark not defined. KATA PENGANTAR ............................. Error! Bookmark not defined. BAB I PENDAHULUAN ........................ Error! Bookmark not defined. 1.1 LatarBelakang ............................ Error! Bookmark not defined. 1.2 Tujuan dan Manfaat Penelitian ... Error! Bookmark not defined. 1.3 Batasan Masalah ......................... Error! Bookmark not defined. 1.4 Sistematika Penulisan ................. Error! Bookmark not defined. BAB II TINJAUAN PUSTAKA ............. Error! Bookmark not defined. 2.1 Pendahuluan ............................... Error! Bookmark not defined. 2.2 Landasan Teori ........................... Error! Bookmark not defined. 2.2.1 Tanah ................................... Error! Bookmark not defined. 2.2.2 Klasifikasi Tanah ................ Error! Bookmark not defined. 2.2.2.1 Klasifikasi Tanah berdasarkan UNIFIED SYSTEM ................................... Error! Bookmark not defined. 2.2.2.2 Klasifikasi Tanah Berdasarkan AASHTO ........... Error! Bookmark not defined. 2.2.3 Identifikasi Tanah Lempung Error! Bookmark not defined. 2.2.4 Batas – Batas Konsistensi (Atterberg Limit) .............. Error! Bookmark not defined. 2.2.4.1 Batas Cair (Liquid Limit) ......... Error! Bookmark not defined. 2.2.4.2 Batas Plastis (Plastic Limit) ........ Error! Bookmark not defined. 2.2.4.3 Batas Susut (Shrinkage Limit) .... Error! Bookmark not defined. 2.2.4.4 Indeks Plastisitas (Plasticity lndeks) Error! Bookmark not defined. 2.2.5 Pemadatan ........................... Error! Bookmark not defined. 2.2.6 Kriteria keruntuhan Mohr-Coulomb .. Error! Bookmark not defined. 2.2.7 Kuat Geser ........................... Error! Bookmark not defined. 2.2.8 Sabut kelapa ........................ Error! Bookmark not defined. 2.2.9 Stabilisasi Tanah ................. Error! Bookmark not defined. 2.2.10 Perkuatan tanah dengan serat (fiber) Error! Bookmark not defined. BAB III METODOLOGI ........................ Error! Bookmark not defined. 3.1 Bahan .......................................... Error! Bookmark not defined. 3.2 Peralatan ..................................... Error! Bookmark not defined. 3.3 Lokasi ......................................... Error! Bookmark not defined. 3.4 Prosedur Penelitian ..................... Error! Bookmark not defined. 3.5 Prosedur Kerja ............................ Error! Bookmark not defined. BAB IV PROSEDUR DAN HASIL KERJA ....... Error! Bookmark not defined. 4.1 Prosedur Penelitian ..................... Error! Bookmark not defined. 4.1.1 Persiapan Benda Uji ............ Error! Bookmark not defined. 4.1.2 Pengujian Sifat Fisik Tanah Error! Bookmark not defined. 4.1.2.1 Pemeriksaan Kadar air . Error! Bookmark not defined. 4.1.2.2 Pemeriksaan Berat Volume ........ Error! Bookmark not defined. 4.1.2.3 Pemeriksaan Berat Jenis ............. Error! Bookmark not defined. 4.1.2.4 Analisa Saringan .......... Error! Bookmark not defined. 4.1.2.5 Uji Batas-batas konsistensi Tanah (Atterberg Limite) ................................... Error! Bookmark not defined. 4.1.2.5.1 Pemeriksaan Batas Cair (Liquid Limite)........ Error! Bookmark not defined. iv 4.1.2.5.2 Batas Plastis (Plastic Limite) Error! Bookmark not defined. 4.1.3 Pengujian Sifat Mekanis Tanah .......... Error! Bookmark not defined. 4.2 Hasil Pengujian........................... Error! Bookmark not defined. 4.2.1 Sifat Fisik Tanah ................. Error! Bookmark not defined. 4.2.2 Hasil Uji Serat Sabut KelapaError! Bookmark not defined. 4.2.3 Sifat Mekanis Tanah............ Error! Bookmark not defined. 4.2.3.1 Hasil Pengujian Pemadatan ........ Error! Bookmark not defined. 4.2.3.2 Hasil Pengujian Kuat Geser Langsung (Direct Shear) ................................... Error! Bookmark not defined. BAB V ANALISA DAN PEMBAHASAN ........... Error! Bookmark not defined. 5.1 Analisis Hasil Uji Sifat Fisik Tanah .......... Error! Bookmark not defined. 5.2 Analisis Hasil Uji Sifat Mekanik Tanah ... Error! Bookmark not defined. 5.2.1 Kuat geser langsung ............ Error! Bookmark not defined. BAB VI KESIMPULAN DAN SARAN . Error! Bookmark not defined. 6.1 Kesimpulan ................................. Error! Bookmark not defined. 6.2 Saran ........................................... Error! Bookmark not defined. DAFTAR KEPUSTAKAAN ................... Error! Bookmark not defined. LAMPIRAN ............................................. Error! Bookmark not defined. v 6