تعتبر شركة Olux شركة رائدة ومتميزة على المستوى الدولي في مجال البحث والتطوير وتصنيع وبيع محطات التكسير والغربلة واسعة النطاق ومعدات الطحن الصناعية ومصانع الاستفادة.
José AR, F PS, Marques PR (2022) Recycling of crushed concrete and steel slag in drainage structures of geotechnical works and road pavements. Journal of Material Cycles and …
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Hence, it is very much necessary to find alternative for making use of iron ore waste material (fines)/tailings as an aggregate in construction materials like bricks or paving blocks.
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In addition, a better understanding of the properties of new green concrete is needed to enable it to be designed for desirable performance and sustainability. Therefore, IOTs and iron ore waste rock were used to replace natural sand aggregate, and IOTs-fly ash-slag powders were used to prepare ternary system SCMs.
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Utilization of Iron Ore Waste and Tailings in Concrete Pavements: Authors: B C, Gayana. Supervisors: Chandar, K Ram. Keywords: ... Similar to WR and IOT concrete mixes, optimum strength obtained for 0.35, 0.40 and 0.45 w/c were at 50%, 40% and 30% replacement of WR-alccofine concrete and in case of IOT-alccofine concrete, optimum strength ...
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Iron ore is reduced to iron andthen converted to steel. The main inputs are iron ore, coal, limestone and recycled steel. The main ore-based production routes are: iron making via the blast furnace (BF) followed by steelmaking in the basic oxygen furnace (BOF), and ironmaking via direct reduction (DRI) followed by steel production in the ...
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Slags are the waste materials that result from the metallurgical operations of smelting metals from their ores or purifying metals. Slags of varying compositions are available …
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steel slag and C&D waste as filler in asphalt concrete. Using SS and C&D waste as filler in asphalt conc. Leads to sustainable and environmentally friendly pavement. Under microwave irradiation steel slag filler-based asphalt mastic may release more heat than limestone filler-based asphalt mastics. The combined filler
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The utilisation of iron ore tailings as aggregates in concrete could have positive environmental implications to the mining companies and the mining communities and will provide cheaper alternative materials to bring about economy in concrete production. ... Use of coal waste as fine aggregates in concrete blocks for paving. Paper presented at ...
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In iron and steel industry, Iron ore tailings (IOT) and slimes utilization is still an area of challenge, because of the low content of iron oxide present in them, which is unsuitable for metal ...
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The scope of this work is to study the utilization of iron ore tailings in manufacture of concrete paving blocks. Five reference mixes were prepared using cement, jelly dust and baby jelly.
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Generally, 1.0 to 1.5 tonnes of solid waste byproducts are generated while producing IJERTV3IS10033 2.0Steel production and by-products at a glance There are two main ways in which steel is produced: 1. Iron ore-based steel production accounts for about 70% of world steel production. Iron ore is reduced to iron andthen converted to steel.
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Researchers have explored the utilization of waste aggregates like glass sand, [10,11] recycled construction and ... Ye, P.; Cui, X. Study on the preparation of high performance …
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Due to exponential growing in urbanization and industrialization, byproducts from industries are becoming an increasing concern for recycling and waste management. Ground granulated blast furnace slag (GGBS) is by-product from the blast-furnaces of iron and steel industries. GGBS is very useful in the design and development of high-quality cement …
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In the whole world, generally, two major types of steel industries are found: integrated steel plants and secondary producers. Integrated steel plants use iron ore, coke, and fluxing materials like dolomite and lime stones in blast furnaces, whereas secondary producers use scrap materials, direct reduced iron (DRI), and briquetted iron in electric arc furnaces and …
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Steel slag is a by-product waste material that is generated in steel-making furnaces during the process of separating molten steel from impurities. The chemical reactions that take place when mineral aggregates and asphaltic materials meet one another impact the mechanical qualities of the mixture as well as its viability for use in various ...
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All these features of steel render it as one of the three largest produced materials (concrete, steel and cement) in the world. India ranked 4th amongst[1] the steel producing nations of the world in 2011 (Fig. 1) and it is expected to rank 2nd or 3rd by 2020. ... The utilisation of waste fines is now essential in view of : a. Mineral ...
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After steel and aluminum, cement is the third most energy-intensive material on Earth [32]. ... Table 4 lists the top writers in the field of waste material utilization in concrete who have the most papers and citations, according to data extracted from the Scopus database. The total number of citations was divided by each author's total number ...
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Steel slag particles can potentially be used as aggregates in concrete production. However, the volume stability of steel slag is poor, and the direct use of untreated steel slag aggregate (SSA) …
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This critical review systematically explores the innovative utilization of ground granulated blast-furnace slag (GGBS), steel slag (SS), and other steel waste in concrete, …
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PDF | On Oct 1, 2021, W Mustika and others published Utilization of waste in nickel ore processing as concrete mixing material | Find, read and cite all the research you need on ResearchGate
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Due to population growth and industrial development, waste generation has increased annually over the last few years. According to a World Bank report, in 2018, about 2.01 billion tons of ...
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The utilization of industrial waste as a partial replacement for raw materials in the construction sector saves precious landfill space and reduces the need for the mining of conventional raw materials. Steel slag is generated as a by-product in significant amounts during the process of producing steel using a submerged electric arc furnace.
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zation of industrial waste materials such as rubber, granite, C&D debris, steel slag, fly ash and quarry dust in concrete. Keywords: Rubber, Steel Slag, Fly Ash, Quarry Dust, Steel Tubular ...
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The amendment of cementitious binders with waste materials aids as a path to reduce the volume of waste and carbon emission. This review summarizes the current state of practice for cementitious binder fabrication in favor to the utilization of waste materials such as waste concrete powder (WCP), coal bottom ash (CBA) and steel slags. These materials have …
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More production equals more waste, more waste creates environmental concerns of toxic threat. An economical viable solution to this problem should include utilization of waste materials for new ...
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In order to reduce the generation of iron ore tailings (IOTs) which is a waste produced from the steel indus-try, a new technology has been applied in which coal gangue (CG) is also used with IOTs as a siliceous material to develop AAC (Wang et al., 2016). AAC mix contains maximum percentages of siliceous compounds compared to other aggregates.
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In India, due to fast pace development there is a drastic growth in the iron and steel industry. As of 2017, India is one of the largest producers of crude steel in the world. This has led to drastic increase in mining activity. Mining activity is responsible for generation of wastes, which can pose threat to the environment and its habitants. However, there is also a great potential …
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In order to reduce the pollution load on landfill for the disposal of steel slag at steel industries, it can be effectively utilized in construction as aggregates in concrete. Use of waste materials …
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DOI: 10.1007/s41062-024-01717-w Corpus ID: 272849482; Enhancing concrete properties with steel waste: a comprehensive review of GGBS, SS, and steel waste utilization @article{Jahami2024EnhancingCP, title={Enhancing concrete properties with steel waste: a comprehensive review of GGBS, SS, and steel waste utilization}, author={Ali Jahami and …
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This study summarizes the results of investigations on the use of waste steel scraps from the machine shops, primarily from the CNC lathe, as supplementary cementitious …
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Iron ore tailings (IOT), as one of the main mining wastes, is produced after multiple crushing and magnetic separation on iron ore [15].In China, stored IOT has reached 5 billion tons and is growing steadily at a rate of over 0.3 billion tons per year, whereas only 20 % of them has been reused [16].IOT that have not been effectively utilized are often stored in tailings dams in …
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This paper aims to address a critical gap in the current literature by providing a comprehensive review of studies focused on the utilization of steel waste in concrete, including ground granulated blast-furnace slag (GGBS) and Steel Slag (SS).
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This thesis investigates utilizing iron ore mine waste and tailings as aggregates in concrete pavements. Concrete mixes were developed with partial replacement of coarse aggregates with iron ore waste rock (WR) and partial replacement of fine aggregates with iron ore tailings (IOT) at different percentages. Concrete properties such as compressive strength, flexural strength, …
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Iron ore-based steel production accounts for about 70% of world steel production. Iron ore is ... asphaltic concrete, road bases andsurfaces, fill, clinker raw material, railroad ballast, ... 5.0 Waste Utilisation 5.1 Blast Furnace Slag In some countries, up to 80% of the cement ...
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utilization of iron ore tailings as replacement to FINE AGGREGATES IN CEMENT CONCRETE PAVEMENTS B N Skanda Kumar 1, Suhas R 2, Santosh Uttam Shet 3, J M Srishaila 4
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for iron ore as a number of steel plants have been planned for future in many parts of the country. In order to reduce the adverse impact of indiscriminate mining of natural sand, iron ore tailings which is the waste products of mining industries is used as an alternative to the river sand in the manufacturing of concrete.
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