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All Journal PROMINE JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Journal Transformation of Mandalika MINERAL
Lucia Litha Respati
Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Mulawarman
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Other

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Journal : JOURNAL SCIENTIFIC OF MANDALIKA (JSM)

 1 
STUDI PERBANDINGAN NILAI KUAT GESER BATU LEMPUNG BERDASARKAN KONDISI JENUH, KONDISI NATURAL, DAN KONDISI KERING FORMASI PALAU BALANG MENGGUNAKAN METODE DIREC SHEAR DI KALIMANTAN TIMUR Irfan Irfan; Tommy Trides; Agus Winarno; Lucia Litha Respati; Shalaho Dina Devy
JOURNAL SCIENTIFIC OF MANDALIKA (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 4 No. 5 (2023): Mei
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol4iss5pp51-61

Abstract

: Claystone is a rock that has a denser structure with more mineral composition than siltstone. In addition, claystone can also be interpreted as a type of sedimentary rock that is clay or plastic, composed of hydrous aluminum silica (a clay mineral) whose grain size is fine and the claystone is often easily destroyed in a short time when it is exposed to the surface and interacts with water. From the test results it can also be obtained a comparison of rock strength values between location 1 and location 2 by correlating the results of testing the physical properties and mechanical properties of each location where for location 1 has a natural water content value of 17.38% and a saturated water content of 24.39% with the cohesion value of claystone under natural conditions is 0.209 MPa, saturated conditions are 0.2105 MPa and dry conditions are 0.2517 MPa. Then for location 2 it has a natural water content value of 22.87% and a saturated water content of 32.84% with a claystone cohesion value of natural conditions of 0.0923MPa, saturated conditions of 0.0377MPa and dry conditions of 0.2099 MPa. It can be concluded that the claystone location 1 has a smaller water content presentation than the claystone location 2. It can be concluded that the water contained in the claystone greatly influences the strength of the claystone in resisting the forces received to experience a shift and also water affects the attractive force between claystone particles which makes the strength of the rock weak.
THE IMPACT OF AGLOMERATION METHOD FROM AQUADES AND WASTE COOKING OIL TO THE INCREASING OF THE CALORIFIC VALUE AT PT MEGAPRIMA PERSADA’S COAL IN PT SURVEYOR INDONESIA LABORATORY, SAMARINDA EAST KALIMANTAN) Hadis; Windhu Nugroho; Lucia Litha Respati; Agus Winarno; Shalaho Dina Devy
JOURNAL SCIENTIFIC OF MANDALIKA (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 4 No. 7 (2023): Juli
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol4iss7pp82-90

Abstract

Coal is a fossil fuel that is formed from organic deposits. Coal reserves in Indonesia generally include low rank coal with a total moisture up to 40%. Coal with low ash and sulfur content can be obtained by utilizing oil and water which in this case is called agglomeration. In making agglomeration this time it is done by using waste cooking oil and aquades. The comparison used was 100 g of coal, 100 ml of distilled water and the variable that was distinguished was waste cooking oil, namely 20 ml, 30 ml and 40 ml. Proximate analysis results on coal obtained IM 11,93%, AC 7,04%, AC 39,79% and FC 41,24%. At 20 ml agglomeration obtained IM 0,47%, AC 6,04%, VM 51,94% and FC 41,55%. At 30 ml agglomeration, the value of IM is 0,37%, AC is 5,35%, VM is 67,38% and FC is 36,38%. At 40 ml agglomeration, the value of IM is 0,26%, AC is 4,76%, VM is 59,19% and FC is 35,79%.
Co-Authors Agus Winarno Al Mulyadi Devy, Shalaho Dina Emdananta Ginting Fery Ferdiansyah Hadis Harjuni Hasan Henny Magdalena Irfan Irfan Ketut Swarningsih Megawati AP Nurfaysa Revia Oktaviani Revia Oktaviani Sakdillah Shalaho Dina Devy Siti Fadlah Musarofah Siti Maghfirah Azzahra Tommy Trides Tommy Trides Tommy Trides Tommy Trides Tommy Trides Windhu Nugroho Windhu Nugroho Windhu Nugroho windhu