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All Journal JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Jurnal Indonesia Sosial Teknologi
Rusmanta, Yohanes B. J.
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Humanities Computer Science & IT Economics, Econometrics & Finance Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Other

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Pengaruh Kadar Air Terhadap Tingkat Keasaman Tanah Kampung Burmeso Secara Elektrometri Sineri, Carli N. M.; Krimadi, Lodwyk N.; Salim, Ilham; Mandik, Yohanis I.; Rusmanta, Yohanes B. J.
Journal Scientific of Mandalika (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 6 No. 6 (2025)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol6iss6pp1533-1540

Abstract

A study has been conducted on the analysis of the effect of moisture content on the acidity level (pH H2O and pH KCl) of the soil of Burmeso Village using the electrometry method. Samples were taken from a depth of 0-10 cm with a sample soil ring. Next, the soil samples were dried at 105°C for 3 hours, sifted using a 200 mesh sieve. The analysis was carried out on the physical properties (moisture content) and its correlation with the chemical properties (Soil Acidity). The results of this study showed that the soil moisture content of three soil samples was 9.03 (TL), 9.065 (TH), and 9.56 (TB) and was classified as high enough moisture content so that it had a direct effect on the pH of farmland, forest soil and ex-field soil was classified as sour (low) to slightly sour (moderate), the high and low pH greatly affected the nutrient content in the soil so that it produced. The results of soil acidity analysis also indicate that the actual acidity pH value (H2O pH) is greater when compared to the potential pH (pH KCl) so that the ΔpH value tends to be negative including -0.705 (TL), -0.84 (TH), and -1.035 (TB), this negative value shows that the soil of Burmeso Village is a negative net load soil occupied by exchangeable bases (KTK).
Analysis of Kinang Jingkion Material as Road Subbase Layer Using Soil Cement Method Andrew Kristio Kandai, Rio; Bahtiar, Bahtiar; Rusmanta, Yohanes B. J.; Rante, Harmonis; Safanpo, Apolo; Manalu, Janviter
Jurnal Indonesia Sosial Teknologi Vol. 5 No. 4 (2024): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v5i4.1016

Abstract

This research aims to analyze the California Bearing Ratio (CBR) and Unconfined Compressive Strength Test (UCS) values as road foundation layers using local materials, namely Kinang Jingkion. The soil and Kinang Jingkion materials for the study were taken from the Apalapsili quarry in Yalimo Regency. Additionally, the additive or soil stabilizer used was matos obtained from the testing of soil characteristics, including sieve analysis or gradation, Standard Proctor Test for light density, and liquid limit test. After testing, it was found that the soil from the Apalapsili quarry is granular soil and can be categorized as A-1-a according to SNI 03-6797-2002. Subsequent testing involved CBR and UCS testing on Mix Designs made of soil and cement with concentrations of 4%, 6%, and 8%. Next, additional Mix Designs were created with compositions of Kinang Jingkion, soil, cement at 4%, 6%, and 8%. Further Mix Designs included compositions of Kinang Jingkion, soil, matos at 2%, and cement at 4%, 6%, and 8%. From the UCS testing results, Mix Designs with soil and cement concentrations of 4% and 6% did not meet the compressive strength criteria, with compressive strength values of 9.26 Kg/Cm² and 17.4 Kg/Cm² respectively. According to SNI 6887-2012, the compressive strength value after 7 days of immersion should be within 25-35 Kg/Cm², while other Mix Designs met the criteria of SNI 6887-2012. CBR testing also utilized the same Mix Designs, and the highest CBR result was obtained from the Mix Design with compositions of Kinang Jingkion, soil, cement at 8%, and matos at 2%, with a CBR value of 112%. According to the 2018 Revised General Specifications, a CBR value of 112% indicates a Class A Foundation Layer.
Co-Authors Andrew Kristio Kandai, Rio Bahtiar Bahtiar Lodwyk Nomenzen Krimadi Manalu, Janviter Rante, Harmonis Safanpo, Apolo Salim, Ilham Sineri, Carli N. M. Yohanis Mandik