ANALISA NILAI CBR SOAKED DAN UNSOAKED UNTUK LAPISAN SUBGRADE PADA TANAH MERAH NGELING JEPARA

Khotibul Umam

Abstract


Problems associated with the subgrade (subgrade) of the structure on the pavement include deformation which is caused by traffic loads, soil shrinkage due to changes in moisture content and uneven soil bearing capacity. In any civil engineering work, it is generally established on the ground. With the development of the times, more and more agricultural lands are used in the construction of road access. In general, red soil is easy to absorb water, contains moderate organic matter, and has a neutral acidity. In the area of Ngeling Village, Jepara, land is generally used for farming and now much of it has been converted into land for building roads. In the implementation of road construction, the price of CBR for land is very important and influential. The subsoil layer in the road structure may consist of original soil, excavated soil and compacted soil which can reach a density of at least 100%. In this study, it was found out how much the laboratory CBR value of both CBR Soaked and CBR Unsoaked from the original land in Ngeling Village, Jepara. In addition, it can also be seen that the CBR value in the worst soil conditions is obtained from CBR Soaked (immersion). The CBR value of the soil with saturated water immersion obtained a value of 3.8553%, which is categorized as bad for sugbgrade, while the land without being soaked has a value of 10.925% which is categorized as good for subgrade.

Keywords


CBR Unsoaked, CBR soaked, laterite, Subgrade

Full Text:

PDF

References


P. I. L. Lengkong et al., “Tanah Yang Dipadatkan Pada Ruas Jalan Wori –,” vol. 1, no. 5, pp. 368–376, 2013.

K. Kab et al., “PENATAAN LINGKUNGAN RUMAH NELAYAN,” no. September, pp. 36–41, 2019.

Y. A. Saputro, K. Umam, and S. Fauziah, “Analisis Sandcone Test ( AASHTO T 191 dan ASTM D 1556 64 ) Pada Peningkatan Jalan Jepara – Kedungmalang – Pecangaan,” no. September, pp. 41–46, 2020.

Kementerian Pekerjaan Umum dan Perumahan Rakyat, “Spesifikasi Pekerjaan Tanah,” 2016.

SNI 1964:2008, “Sni 1964:2008,” p. 14, 2008.

S. N. Indonesia and B. S. Nasional, “Tata cara penentuan kadar air batuan dan tanah di tempat dengan metode penduga neutron,” 2004.

Badan Standardisasi Nasional, “SNI 03-1966:2008 Batas Plastis dan Indeks Plastis,” 2008.

A. Asyifa and S. Umam, “Pengaruh Substitusi Abu Batu (Quarry Dust) Pada Nilai CBR Laboratorium Untuk Stabilitas Subgrade Timbunan (Substitution Effect of Quarry Dust On Laboratory CBR Value For Stability Of Subgrade Embankment),” Semesta Tek., vol. 19, no. 1, pp. 75–79, 2016.

SNI 3423, “Cara uji analisis ukuran butir tanah,” p. 27, 2008.

N. Ariyani, “Pengaruh kapur dan abu sekam padi pada nilai cbr laboratorium tanah tras dari dusun seropan untuk stabilitas subgrade timbunan,” J. Pertan., vol. 7, no. 3, pp. 1–16, 2007.

Badan Standarisasi Nasional, “Metode uji CBR laboratorium,” Sni 17442012, pp. 1–28, 2012.

W. Utami, “Korelasi Uji Pemadatan Standard Proctor Method Terhadap Pengujian CBR Laboratorium Berdasarkan Alat Uji Tekan Modifikasi di Laboratorium Untuk Pemadatan Tanah di Lapangan,” vol. 7, no. 1, pp. 113–122, 2019.




DOI: https://doi.org/10.31002/rice.v5i1.3660

Refbacks

  • There are currently no refbacks.


Copyright (c) 2021 Reviews in Civil Engineering

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Journal Reviews in Civil Engineering

P-ISSN: 2614-3100 E-ISSN: 2614-3119

Published by Department Civil Engineering, Faculty of Engineering, Universitas Tidar

Sekretariat :

Gedung FT 3 Lantai 4, Jurusan Teknik Sipil, Fakultas Teknik Universitas Tidar, Jalan Kapten Suparman No 39 Magelang 56116

email: civil_teknik@untidar.ac.id