EFFECT OF THE MOISTURE INCREASE IN THE TESTINGS OF DENSITY AND SATURATION DEGREE FOR MINE SOIL AT A CONSTANT SPECIFIC GRAVITY CONDITION

Authors

  • Deden Agus Ahmid R&D Centre for Mineral and Coal Technology
  • Bagaraja Sirait R&D Centre for Mineral and Coal Technology
  • Yayah Rohayati R&D Centre for Mineral and Coal Technology
  • Tarsono Tarsono R&D Centre for Mineral and Coal Technology

DOI:

https://doi.org/10.30556/imj.Vol23.No1.2020.1010

Keywords:

moisture content, optimum moisture content, specific gravity, density, degree of saturation

Abstract

The degree of density and saturation in soil sample under constant specific gravity conditions are influenced by the addition of water content. To find out its effect, it is necessary to test the samples which include compaction, moisture content, specific gravity and density testing. By recognizing the soil properties through a testing and calculation; dry density, saturation density, dry soil volume, pore volume, degree of saturation, porosity, and void ratio can be evaluated. The test shows that the optimum moisture content and dry density are 53,25% and 1.08g/cm3 respectively. The tests were conducted to five samples that have a specific gravity of 2.67. The obtained saturation degree were S-01: 79.05%, S-02: 92.40%, S-03: 95.06%, S-04: 94.64% and S-05: 93.12%. The value of water content in the five samples was S-01: 48.87%, S-02: 51.04 %, S-03: 53.25 %, S-04: 55.32 %, S-05: 57.24%. The densities in five samples were S-01: 1.50 g/cm³, S-02: 1.63 g/cm³, S-03: 1.64 g/cm³, S-04: 1.62 g/cm³, S-0 5: 1.59 g/cm³. The saturation degree will increase along with the addition of the water content and the density. However, beyond the optimum addition of the moisture content, the saturation degree will decrease in line with the density even though if the water content increase. This occurred in the constant condition of the specific gravity.

References

Al-Khafaji, A. W. and Andersland, O. B. (1992) Geotechnical engineering and soil testing. Oxford University Press.

ASTM D2216-98 (2010) ‘Test methods for laboratory determination of water (moisture) content of soil and rock by mass’, in Annual Book of ASTM Standards. West Conshohocken: ASTM International.

ASTM D4531 - 86(2002) (2010) ‘Standard test methods for bulk density of peat and peat products’, in Annual Book of ASTM Standards. West Conshohocken: ASTM International.

ASTM D698-00 (2012) ‘Standard test methods for laboratory compaction characteristics of soil using standard effort (12 400 ft-lbf/ft3 (600 kN-m/m3))’, in Annual Book of ASTM Standards. ASTM International, p. 13.

ASTM D854-02 (2010) ‘Standard test methods for specific gravity of soil solids by water pycnometer’, in Annual Book of ASTM Standards. West Conshohocken: ASTM International.

Bowles, J. E. (1984) Physical and geotecnical properties of soil. 2nd Ed. New York: McGraw-Hill.

Bowles, J. E. (1991) Sifat-sifat fisis dan geoteknis tanah (mekanika tanah). 1st Ed. Edited by J. K. Hainim and Y. Sianipar. Jakarta: Erlangga.

Das, B. M. and Sobhan, K. (2016) Principles of geotechnical engineering. 9th Ed. CENGAGE Learning Custom Publishing.

Muda, A. (2016) ‘Model pendekatan alat uji kepadatan ringan untuk tanah di laboratorium’, Info-Teknik, 17(1), pp. 53–68.

Novalia, A. (2017) Studi eksperimen derajat kepadatan tanah standard proctor laboratorium terhadap alat tekan pemadat modifikasi menggunakan tanah timbunan pilihan. Universitas Lampung.

Pan, W., Boyles, R. P., White, J. G. and Heitman, J. L. (2012) ‘Characterizing soil physical properties for soil moisture monitoring with the North Carolina environment and climate observing network’, Journal of Atmospheric and Oceanic Technology, 29(7), pp. 933–943. doi: 10.1175/JTECH-D-11-00104.1.

Sembiring, N., Iswan and Jafri, M. (2016) ‘Studi perbandingan uji pemadatan standar dan uji pemadatan modified terhadap nilai koefisien permeabilitas tanah lempung berpasir’, Journal Rekayasa Sipil dan Desain, 4(3), pp. 371–380.

Syafruddin (2007) ‘Hubungan teoritis antara berat isi kering dan kadar air untuk menentukan kepadatan relatif’, Info-Teknik, 8(2), pp. 142–150.

Tuheteru, E. J., Gautama, R. S. and Kusuma, G. J. (2016) ‘Studi kompaksi batuan penutup untuk pencegahan terbentuknya air asam tambang pada metode enkapsulasi’, Indonesian Journal of Urban and Environmental Technology, 8(2), p. 130. doi: 10.25105/urbanenvirotech.v8i2.1420.

Ulfa, S. Z. (2017) Studi konversi energi pemadatan tanah dengan modified proctor method untuk tanah pasir berlempung. Universitas Lampung.

Yamali, F. R. (2016) ‘Analisa energi alat pemadat tanah lempung dilapangan’, Jurnal Civronlit Unbari, 1(1), p. 33. doi: 10.33087/civronlit.v1i1.10.

Downloads

Published

2020-04-30

Most read articles by the same author(s)