Analisis Pengaruh Number of Cycles Terhadap Pengujian Durabilitas Batulanau di Sidomulyo Samarinda

Authors

  • Eva Indriani Sanggalangi Fakultas Teknik, Universitas Mulawarman
  • Shalaho Dina Devy Fakultas Teknik, Universitas Mulawarman
  • Windhu Nugroho Fakultas Teknik, Universitas Mulawarman

DOI:

https://doi.org/10.29313/jrtp.v2i2.1618

Keywords:

Slake Durability, Siklus, Klasifikasi Ketahanan

Abstract

Abstract. Durability is defined as a measure of the rock's resistance to weathering and disintegration, when the rock undergoes weathering in a short period of time. This time the slake durability test was carried out with the testing standard of SNI 3406 Year 2011. This test used siltstone in the Balang Island Formation, Samarinda area. The particle size of the silt is midway between that of clay and fine sand. From the results of testing 8 samples of siltstone with 10 cycles that have been carried out, it can be seen that the siltstone in the Balang Island Formation tends to be stronger and the durability index value decreases relatively small from one cycle to the next. The value of Slake durability index (Id2) from each sample sequentially, namely 91.3%, 96.4%, 95.3%, 93.7%, 93.7%, 95.4%. 97.2%, 96.7%. The durability index test obtained an average durability index value (Id2) of 95%, where the value of siltstone at the research site is included in the very high classification.

Abstrak. Ketahanan (durability) didefinisikan sebagai ukuran resistensi batuan terhadap pelapukan dan disintegrasi, ketika batuan mengalami proses pelapukan dalam jangka waktu yang singkat. Pengujian slake durability kali ini dilakukan dengan standar pengujian SNI 3406 Tahun 2011. Pengujian ini menggunakan batulanau pada Formasi Pulau Balang daerah Samarinda. Ukuran partikel lanau berada di tengah-tengah antara lempung dan pasir halus. Dari hasil pengujian 8 sampel Batulanau dengan siklus sebanyak 10 kali yang telah dilakukan terlihat bahwa Batulanau pada Formasi Pulau Balang cenderung lebih kuat dan nilai indeks durability mengalami penurunan yang relatif kecil dari siklus satu ke siklus berikutnya. Nilai Slake durability index (Id2) dari masing-masing sampel secara berurutan, yaitu 91.3%, 96.4%, 95.3%, 93.7%, 93.7%, 95.4%. 97.2%, 96.7%. Pengujian durability index tersebut diperoleh rata-rata nilai indeks durability (Id2) sebesar 95% , dimana dengan nilai tersebut batulanau pada lokasi penelitian termasuk dalam klasifikasi sangat tinggi.

References

P. G. Fookes, W. R. Dearman, dan J. A. Franklin, “Some engineering aspects of rock weathering with field examples from Dartmoor and elsewhere,” Quarterly Journal of Engineering Geology and Hydrogeology, vol. 4, no. 3, hlm. 139–185, 1971.

J. A. Franklin dan R. Chandra, “The Slake-Durability Test,” In: International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, hlm. 325–328, 1972.

A. E. Ridha, Y. R. Farian, dan S. Koesnaryo, “Kajian Pengaruh Tingat Pelapukan Terhadap Kekuatan Batuan Pada Batu Andesit, Parangtritis, Kec. Kretek, Kab. Bantul, Prov. D.I. Yogyakarta”.

M. Zuhdi, Buku Ajar Pengantar Geologi. Mataram-Lombok-NTB: Duta Pustaka Ilmu, 2019.

Waode Jelita Ma’ruff Bay dan Linda Pulungan, “Pemanfaatan Bahan Galian Mineral Kalsit Berdasarkan Karakteristik Sifat Fisik di Cikembar Sukabumi,” Jurnal Riset Teknik Pertambangan, hlm. 40–47, Jul 2022, doi: 10.29313/jrtp.v2i1.994.

I. A. Sadisun, “Pengaruh pelapukan batulempung Formasi Subang terhadap beberapa sifat keteknikannya guna menunjang efektivitas pemilihan desain perkuatan lereng,” Institut Teknologi Bandung, 2002.

M. Misbahudin dan I. A. Sadisun, “Analisis Ketahanan ( Durability ) Batulempung Formasi Subang Di Daerah Ujungjaya Dan Sekitarnya, Kabupaten Sumedang, Jawa Barat,” Bulletin of Geology, vol. 2, no. 1, hlm. 163–174, Mar 2018, doi: 10.5614/bull.geol.2018.2.1.3.

Standar Nasional Indonesia (SNI), “Cara Uji Sifat Tahan Lekang Batu,” 3406, 2011

M. Vivoda Prodan dan Ž. Arbanas, “Weathering Influence On properties of siltstones from Istria,” Advances in materials science and engineering, 2016.

C. Gökceoğlu, R. Ulusay, dan H. Sönmez, “Factors affecting the durability of selected weak and clay-bearing rocks from Turkey, with particular emphasis on the influence of the number of drying and wetting cycles,” Eng Geol, vol. 57, no. 3–4, hlm. 215–237, 2000.

L. N. Y. Wong, V. Maruvanchery, dan G. Liu, “Water effects on rock strength and stiffness degradation,” Acta Geotech, vol. 11, no. 4, hlm. 713–737, 2016.

Downloads

Published

2022-12-21