scholarly journals Comparison of Wet Process and Dry Process of Cement Manufacturing with Advantages and Disadvantages

2020 ◽  
pp. 01-06
Author(s):  
Ms. Elena Rosemaro
Keyword(s):  
Portland Cement ◽  
Dry Process ◽  
Wet Process ◽  
Advantages And Disadvantages ◽  
Cement Manufacture ◽  
Wet Ground ◽  
Cement Manufacturing

In this paper we are discussing wet and dry process of Portland cement manufacture. Wet process minerals are wet ground to form a slurry and in dry process minerals are dry ground to form a powder like substance. In this paper, we are discussing the comparison between wet process and dry process with various advantages and disadvantages.

Nutrition

1932 ◽  
Vol 5 (1-2) ◽  
pp. 25-35
Keyword(s):  
Fatty Acids ◽  
The Netherlands ◽  
Free Fatty Acids ◽  
Intrinsic Value ◽  
Extraction Process ◽  
Dry Process ◽  
Wet Process ◽  
Advantages And Disadvantages ◽  
Tijdschrift Voor ◽  
Feeding Value

The Preparation of Meat-scraps. Meat-scraps Problems. De Bereiding van Diermeel. Diermeelproblemen. Dr. B. J. C. te Hennepe. Tijdschrift voor Diergeneeskunde, 1931, p. 918.The author describes three different processes for the preparation of meatscraps used in the Netherlands, pointing out their advantages and disadvantages. (1) The wet process, (2) The dry process, (3) The extraction process by means of Benzin. A summary of the economical results obtained is being given. The author points further out, that according to his opinion the question, as to how far the intrinsic value of free fatty acids influences the feeding value of the meal, especially as regards chicken food, is quite entitled.

scholarly journals Review Industri Semen

2019 ◽  
Author(s):  
Febri Andini ◽  
Laila Suryani ◽  
Hildayati Amri
Keyword(s):  
Fly Ash ◽  
Portland Cement ◽  
Calcium Aluminate ◽  
Tricalcium Silicate ◽  
Dump Truck ◽  
Belt Conveyor ◽  
Dry Process ◽  
Wet Process

Industri semen nasional adalah industri strategis yang sangat dibutuhkan dalam setiap negara. Perkembangan infrastruktur memegang peranan penting dalam pembangunan nasional. Salah satu material penunjang untuk melakukan pembangunan nasional adalah semen (cement). Studi ini membahas tentang sejarah semen, sejarah industri semen di Indonesia, komponen semen, alat-alat produksi semen, rangkaian peralatan, proses pembuatan semen, karakteristik semen, jenis-jenis semen, negara penghasil semen terbesar di dunia, Semen Indonesia, limbah industri semen dan dampak industri semen terhadap lingkungan. Semen awalnya dikenal di Mesir sekitar tahun 500 SM untuk pembuatan piramida. Di Indonesia, perusahaan semen pertama adalah PT Semen Padang yang didirikan pada tanggal 18 Maret 1910 dengan nama NV Nederlandsch Indische Portland Cement Maatschappij (NV NIPCM). Komponen semen diantarnya Dicalsium Silicate (2CaO.SiO2 atau C2S), Tricalcium Silicate (3CaO.SiO2 atau C3S), Tricalcium Alumina (3CaO.Al2O3 atau C3A) dan Tetra Calcium Aluminate Ferrite (4CaO.Al2O3 atau C4AF). Alat-alat produksi semen terdiri atas unit pengolahan bahan, unit pembakaran, unit penggilingan akhir dan unit pengisian packing. Rangkaian peralatan terdiri dari traktor, bulldozer, backhoe, dump truck dan belt conveyor. Proses pembuatan semen dibagi menjadi proses basah (wet process) dan proses kering (dry process). Karakteristik semen terdiri dari sifat fisika dan sifat kimia. Jenis-jenis semen diantarnya adalah semen portland, semen putih, semen sumur minyak, semen pozolan, semen belerang, semen magnesium oksiklorida, mixed and fly ash cement, semen alumina tinggi dan semen silikat. Negara penghasil semen terbesar di dunia adalah China, India, Amerika Serikat dan Irak. PT Semen Indonesia (Persero) Tbk adalah produsen semen terbesar di Indonesia Limbah terbesar industri semen adalah limbah gas dan limbah partikel. Industri semen berdampak terhadap lingkungan yaitu lahan, air dan udara.

scholarly journals Review Industri Semen

2019 ◽  
Author(s):  
Febri Andini ◽  
Laila Suryani ◽  
Hildayati Amri
Keyword(s):  
Fly Ash ◽  
Portland Cement ◽  
Calcium Aluminate ◽  
Tricalcium Silicate ◽  
Dump Truck ◽  
Belt Conveyor ◽  
Dry Process ◽  
Wet Process

Industri semen nasional adalah industri strategis yang sangat dibutuhkan dalam setiap negara. Perkembangan infrastruktur memegang peranan penting dalam pembangunan nasional. Salah satu material penunjang untuk melakukan pembangunan nasional adalah semen (cement). Studi ini membahas tentang sejarah semen, sejarah industri semen di Indonesia, komponen semen, alat-alat produksi semen, rangkaian peralatan, proses pembuatan semen, karakteristik semen, jenis-jenis semen, negara penghasil semen terbesar di dunia, Semen Indonesia, limbah industri semen dan dampak industri semen terhadap lingkungan. Semen awalnya dikenal di Mesir sekitar tahun 500 SM untuk pembuatan piramida. Di Indonesia, perusahaan semen pertama adalah PT Semen Padang yang didirikan pada tanggal 18 Maret 1910 dengan nama NV Nederlandsch Indische Portland Cement Maatschappij (NV NIPCM). Komponen semen diantarnya Dicalsium Silicate (2CaO.SiO2 atau C2S), Tricalcium Silicate (3CaO.SiO2 atau C3S), Tricalcium Alumina (3CaO.Al2O3 atau C3A) dan Tetra Calcium Aluminate Ferrite (4CaO.Al2O3 atau C4AF). Alat-alat produksi semen terdiri atas unit pengolahan bahan, unit pembakaran, unit penggilingan akhir dan unit pengisian packing. Rangkaian peralatan terdiri dari traktor, bulldozer, backhoe, dump truck dan belt conveyor. Proses pembuatan semen dibagi menjadi proses basah (wet process) dan proses kering (dry process). Karakteristik semen terdiri dari sifat fisika dan sifat kimia. Jenis-jenis semen diantarnya adalah semen portland, semen putih, semen sumur minyak, semen pozolan, semen belerang, semen magnesium oksiklorida, mixed and fly ash cement, semen alumina tinggi dan semen silikat. Negara penghasil semen terbesar di dunia adalah China, India, Amerika Serikat dan Irak. PT Semen Indonesia (Persero) Tbk adalah produsen semen terbesar di Indonesia Limbah terbesar industri semen adalah limbah gas dan limbah partikel. Industri semen berdampak terhadap lingkungan yaitu lahan, air dan udara.

scholarly journals Wet and Dry Process for Manufacturing of Portland Cement Por with Chemical Compounds

2019 ◽  
pp. 01-06
Author(s):  
Mr. Shruti Timande
Keyword(s):  
Portland Cement ◽  
Chemical Reaction ◽  
Chemical Compounds ◽  
Dry Process ◽  
Wet Ground ◽  
Reaction With Water

Portland is hydraulic make by finely pummeling the clinker produced by calcining to incipient combination a mix of argillaceous and in like manner calcareous supplies. It experiences a chemical reaction with water units and solidifies when engaged with air or moreover underwater  In this paper we are talking about two diverse procedure to manufacture cement that are wet procedure and dry procedure. Wet procedure minerals are wet ground by including water  to shape a slurry and afterward dried. Dry procedure minerals are dry ground to shape a powder like substance.

scholarly journals Dry and Wet Process of Portland Cement with Benefits and Limitations

2019 ◽  
pp. 06-11
Author(s):  
Prof. Romi Morzelona
Keyword(s):  
Portland Cement ◽  
Raw Material ◽  
Dry Process ◽  
Wet Process ◽  
The World ◽  
Simple Component

Portland cement is used around the world and used as a simple component of concrete, mortar, plaster etc. the dry process is used when raw material are relatively hard. This process is slow and its creation is expensive. The wet process consist many operation like mixing, burning and grinding to manufacture the cement.

scholarly journals Carbon-Negative Cement Manufacturing from Seawater-Derived Magnesium Feedstocks

2021 ◽  
Author(s):  
Palash Badjatya ◽  
Abdullah Akca ◽  
Daniela Fraga Alvarez ◽  
Baoqi Chang ◽  
Siwei Ma ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Compressive Strength ◽  
Portland Cement ◽  
Energy Use ◽  
Source Material ◽  
Magnesium Ions ◽  
Cement Manufacturing ◽  
Carbon Dioxide Co2 ◽  
Carbonation Curing ◽  
Free Magnesium

This study describes and demonstrates a carbon-negative process for manufacturing cement from widely abundant seawater-derived magnesium (Mg) feedstocks. In contrast to conventional Portland cement, which starts with carbon-containing limestone as the source material, the proposed process uses membrane-free electrolyzers to facilitate the conversion of carbon-free magnesium ions (Mg2+) in seawater into magnesium hydroxide (Mg(OH)2) precursors for the production of Mg-based cement. After a low-temperature carbonation curing step converts Mg(OH)2 into magnesium carbonates through reaction with carbon dioxide (CO2), the resulting Mg-based binders can exhibit compressive strength comparable to that achieved by Portland cement after curing for only two days. Although the proposed “cement-from-seawater” process requires similar energy use per ton of cement as existing processes, its potential to achieve a carbon-negative footprint makes it highly attractive to decarbonize one of the most carbon intensive industries.

scholarly journals Performance Evaluation of Ordinary Portland Cement with GGBFS and Portland Slag Cement at Same GGBFS Replacement Level in Concrete

2018 ◽  
Vol 203 ◽  
pp. 06004
Author(s):  
Ramesh Babu Chokkalingam ◽  
Manikandan Rajakannu
Keyword(s):  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Concrete Structures ◽  
Blended Cement ◽  
Mineral Admixtures ◽  
Slag Cement ◽  
Control Practice ◽  
Cement Manufacturing ◽  
Portland Slag Cement ◽  
Durability Of Concrete

Literature review indicates that the usage of mineral admixtures (Fly ash, Ground Granulated Blast Furnace Slag, Silica Fume and Rice Husk ash) significantly improves the durability of concrete structures. Though it is reported as best alternative materials for improving durability of concrete structures, it was not very well received in government projects in India till 1990. However, for the past two decades, the usage of mineral admixtures directly or in the form of blended cement in concrete have significantly increased. Major concern of using mineral admixtures which was persisting among majority of the Ordinary Portland Cement (OPC) users are (i) delayed setting and strength gain, affecting the rate of construction, (ii) inconsistent in quality of mineral admixtures, mostly happened in site blending (iii) no established results pertains to Indian condition. In India, mostly the usage of mineral admixtures in concrete are used as a replacement for OPC, specifically in Ready Mix Concrete and site batching plant. However, few literature have reported that usage of mineral admixtures in the form of blended cement which is made at cement manufacturing plant by either intergrinding or blending will exhibits better concrete properties due to consistent quality and better quality control practice followed. Hence, the authors have undertaken this study to investigate the performance of mineral admixtures (only GGBFS) as direct replacement materials and as blended cement in concrete. In order to understand in detail, both as replacement of OPC and in the form of PSC, was undertaken on various cement content in concrete, i.e., 300, 320, 340, 360, 380 kg/m3. Results of compressive strength at various age of curing indicates that usage of GGBFS in the form of Portland Slag Cement (PSC) shows better performance than as a replacement of OPC in concrete.

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