Indonesia adalah salah satu negara yang memiliki perkebunan karet terluas didunia. Perkebunan karet menghasilkan limbah biji karet yang belum dimanfaatkan sebelumnya. Biji karet memiliki bentuk bulat berdiameter 2-3 cm yang bisa dimanfaatkan sebagai pengganti agregat kasar pada beton. Beton yang dihasilkan menggunakan biji karet sebagai agregat kasar dapat dimanfaatkan sebagai pembuat lantai di…
Concrete is a component which cannot be apart from civil engineering, not evcn one part of a building can’t be made from concrete. Concrete still used in many kinds of construction because it’s not only strong and durable but also easy to crcate in many forms and shape. Job MixedFormula must be designed carefully and economically, which intcnd to get good of quantity and quality of concrete…
The lightweight concrete could be produced by making the air voids in the concrete, that was providing the substitution aggregate or by giving the mixture filling in the concrete. One of the substitution aggregates could be derived from the utilization of rubber’s tree waste, which was the rubber seeds. This study was using the experimental method and the discussion was based on the laborator…
Kasiterit merupakan sumberdaya alam yang sering dijumpai di Indonesia. Unsur penyusun utama mineral kasiterit adalah Sn yang dalam nama lain disebut stannum, merupakan sumberdaya alam yang dimanfaatkan oleh manusia sejak lama. Kasiterit banyak ditemukan di beberapa daerah di Indonesia tersebar mulai dari Kepulauan Riau sampai ke pulau Bangka Belitung, serta terdapat di Riau yaitu Kampar, Rokan …
River sand is sand that is sourced from excavation or mining in rivers. The sand used in this experiment was taken from the Musi River, District II Ilir. This downstream work was carried out in an experiment using a sluice box using the gravity concentration method and differences in grain size in the sand. Sluice box is a separator between concentrate and impurities using water as a auxiliary …
Development in South Sumatra Province, especially in Palembang City uses fine aggregate sourced from rivers. The need for river sand plays an important role for industry, both as the main raw material and as a by-product. One of the mineral processing tools is a sluice box. This study uses three variations of deck slope, namely with a deck slope of 2.38° (5 cm), 4.74° (10 cm), and 7.12° (15 …
Pasir besi berada pada urutan ke empat terbanyak unsur yang membentuk bumi. Penyebaran pasir besi di Indonesia terdapat di Pulau Sumatera, Jawa, dan Sulawesi. Pasir besi merupakan sumber besi yang dalam pemanfaatannya masih belum optimal khususnya di Indonesia. Namun, produksi pasir besi meningkat dari tahun ke tahun di Indonesia. Salah satu pemanfaatan pasir besi yang dilakukan pada penilitian…
Tin is a type of metal with a silvery white color and luster that is not easily oxidized and is malleable. Tin in nature is not found in compound elements, but combined with other elements and mineral in the form of compunds, or commonly called tin sand. The current tin is obtained from the mineral cassiterite (tin ore) or the main mineral that found in tin sand. To obtain that tin ore, mining …
Indonesia has a country with abundant natural wealth. One of Indonesia's wealth that should be proud of is tin. Indonesia has the second largest tin reserves after China with the second largest production in 2021. Tin is a strategic metal in advancing the Indonesian economy, considering the role of tin in supporting technologically innovative products. One of these products is the use of tin ox…
Iron sand is sand consisting of grains of sand containing magnetic elements of iron and some other minerals, so that the amount of iron content in the grains of sand is not the same. Iron sand is one of the mining materials in Indonesia which is exploited on a large scale. Iron sand is usually found in the mountains, along rivers and is mostly found on the coast. These include along the west co…
Silica sand is one of the non-metallic minerals which is quite abundant in Indonesia. Silica sand is found in coastal areas of rivers, lakes, beaches, and some in shallow oceans. Silica sand is also one of the raw materials used for the safety glass industry. The silica content (SiO2) in silica sand for the safety glass industry must comply with the Indonesian National Standard for the safety g…
Pasir silika atau pasir kuarsa merupakan salah satu bahan galian non logam dengan ketersediaan jumlah yang melimpah di Indonesia. Kondisi ini dapat diakibatkan oleh keadaan alam Indonesia yang hampir seluruhnya tersusun atas batuan beku asam sebagai sumber pembentuk bahan galian tersebut. Di Indonesia, persebarannya sering ditemukan di daerah pesisir pantai, sungai maupun danau dan sebagian pad…
Iron sand is a sand deposit that contains various minerals, including the mineral hematite (Fe2O3) which is one of the materials used in the manufacture of concrete reinforcing steel. The level of Fe2O3 in iron sand used as raw material for reinforcing steel in concrete must be in accordance with the Indonesian National Standard for raw materials for making reinforcing steel, which is 60.44%. G…
Current technological developments have affected all fields. Along with these developments, it makes humans have a greater desire to know sophisticated technology, because it can make it easier for humans to do anythings. In the current era of globalization, which is marked by the number of people using technology to help ease work, so many devices have been created with innovative technology a…
Granite is a rock that carries the mineral cassiterite (SnO2) which is associated with acid magma and penetrates the sedimentary layer (granite intrusion). The process of forming tin ore (Sn) comes from molten magma containing the mineral cassiterite (SnO2). The tin sand content used in this study was 48,16%, while based on previous research, the tin sand content used for pipe making was at lea…
Tin sand is a sand deposit that contains several minerals, including the mineral cassiterite (SnO2) which is one of the materials used in the fluorine tin oxide glass manufacturing industry. The Sn content in the tin sand used for the manufacture of fluorine tin oxide glass must meet the requirements of 33.3%. Generally, the levels of Sn contained in tin sand mining results have low levels, so …
Tin sand processing not only utilizes the main mineral but also begins to utilize its accessory minerals, namely monazite as a rare earth metal carrier mineral. The mineral monazite contains the rare earth element neodymium which can be used as raw material in the permanent magnet industry. Monazite with quality levels below 40% can be improved by using the gravity concentration method using th…
Silica sand or quartz sand in Indonesia is widely spread in several areas and can be found along the coast and the sea. The largest reserves of quartz sand are on the island of Sumatra, West Sumatra. Quartz sand is also found in the provinces of South Sumatra, the islands of Bangka and Belitung. In addition to the island of Sumatra, quartz sand is also found in the provinces of West Kalimantan …
Kuarsa merupakan salah satu material alam yang melimpah di Indonesia. Indonesia memiliki potensi sumberdaya alam bahan baku pembuatan silika murni yaitu pasir kuarsa yang telah banyak dimanfaatkan dalam dunia industri. Pasir kuarsa yang tersebar di sejumlah wilayah Indonesia memiliki kualitas dan ciri khas yang berbeda antara yang satu dengan lainnya, tergantung kondisi daerahnya. Salah satu je…
The research location is in the village of Talang Merbau and its surroundings, South OKU Regency, South Sumatra which aims to study the provenance of the sandstones of the Gumai Formation by conducting petrographic analysis of ten sandstone samples. The results of megascopic analysis show that the sandstone of the Gumai Formation has a medium grain size – fine sand, as well as the presence of…
Penelitian dilakukan di daerah Koto Tanjung dan sekitarnya. Kecamatan Ulu Rawas, Kabupaten Musi Rawas, Sumatera Selatan dengan tujuan untuk mengidentifikasi keadaan geologi yang meliputi Geomorfologi, Stratigrafi, Struktur Geologi dan Diagenesis Batupasir pada Formasi Papan Betupang. Penelitian ini dilakukan dengan menggunakan metode observatif, yaitu metode dengan menganalisa dan mengidentifik…
Batupasir Formasi Halang pada dasarnya merupakan batupasir yang memiliki ciri khusus struktur sedimen berupa bouma sequence dan pada lokasi penelitian yang berada pada daerah Cibenda, Kabupaten Ciamis, Jawa Barat, diketahui batupasir Formasi Halang menunjukan sifat batupasir endapan turbidit vulkanik. Hal tersebut merupakan daya tarik bagi peneliti sebagai bahan untuk penelitian kali ini. Selai…
Studi batuan asal (provenance) telah dilakukan di daerah Tanjung Sirih dan sekitarnya, Kecamatan Pulau Pinang, Kabupaten Lahat, Provinsi Sumatera Selatan, dengan mendeskripsikan singkapan batupasir secara megaskopis serta menganalisis petrografi terhadap 6 (enam) pemerconto batupasir yang diambil dari Formasi Talang Akar Atas. Deskripsi megaskopis singkapan batupasir menunjukkan bahwa batupasir…
Iron sand in Indonesia is an abundant resource but its use is still very minimal, so that iron sand is considered a natural resource that is less economical and its utilization is not optimal. While iron sand itself is in the order of the most elements forming the earth. So far, the material used as fine aggregate in flexible pavement mixtures is natural sand, which generally comes from rivers.…
Lead metal (Pb) is usually found in tin tailings. The formation of tailings was of the effects of mining. Tailings tend to have acidic pH that encourages dissolution as heavy metals, this later may poison soil and water. Legume Cover Crop (LCC) is potential for remediation of Pb in tin post-mining. Legume crops such as Centrocema pubescens and Pueraria javanica are highly tolerance to soil with…
Penelitian ini berjudul pengaruh latihan lempar ban dalam vespa berisi pasir 5 kg terhadap hasil lempar cakram siswa putra kelas VII SMP Negeri 33 Palembang. Penelitian ini merupakan jenis penelitian eksperimen. Dalam penelitian ini yang menjadi populasi adalah siswa putra kelas VII SMP Negeri 33 Palembang. Jumlah sampel penelitian ini adalah 40 siswa putra dengan menggunakan teknik random samp…
Kegiatan pengolahan bahan galian adalah kegiatan guna meningkatkan nilai bahan galian. Salah satu alat yang biasa digunakan adalah Sluice box dengan menggunakaan prinsip perbedaan berat jenis. Variabel yang diterapkan menjadi tolak ukur perolehan konsentrat yang sesuai dengan yang diharapkan. Kadar menjadi standar keberhasilan pengolahan yang dilakukan. Penerapan variabel waktu feeding, kemirin…
Endapan pasir besi merupakan endapan pantai yang terbentuk oleh konsentrasi mekanik, dan fisik dari mineral-mineral batuan asal akibat proses pelapukan itu sendiri, batuan darat yang tererosi memberikan pasokan material berukuran lempung sampai pasir dengan kandungan mineral-mineral berat yang mengandung besi (Fe). Pasir besi ini juga berasal dari bebatuan basalt dan andesit volkanik yang t…
Tujuan dari penelitian ini adalah untuk mengetahui pengaruh komposisi pasir dan ketebalan emitter berbahan semi kedap pada irigasi bawah permukaan terhadap pertumbuhan tanaman cabai. Penelitian dilaksanakan di rumah tanaman (8m x 4m x 2,5 m) di samping Jurusan Teknologi Pertanian, Fakultas Pertanian, Universitas Sriwijaya, Indralaya. Penelitian ini dimulai pada bulan Mei sampai dengan Agustus 2…
The research was motivated by an ever increasing need for land, scarcity of fertile agricultural land and potential, as well as the existence of competition between agricultural land use and non-farm, requiring the appropriate technology in an effort to optimize the sustainable use of land. To be able to utilize land resources as directed and efficient provision of necessary data and complete i…