دانلود رایگان مقاله لاتین توسعه آجر اکسترود از سایت الزویر
عنوان فارسی مقاله:
توسعه آجر اکسترود شده با محصول جانبی صنعت فولاد به سمت اقتصاد مدور
عنوان انگلیسی مقاله:
Development of extruded and fired bricks with steel industry byproduct towards circular economy
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
. Introduction The aim of "closing the loop" of product lifecycles through greater recycling, by safely turning waste byproducts from an industry into useful secondary resources for another industrial sector is strongly encouraged by current European Union policies, towards industrial symbiosis, ample coordination and circular economy. Huge quantities of clays are annually needed for the production of considerable amounts of fired ceramic bricks worldwide, and therefore much research focuses on the utilization of alternative raw materials from various origins into clay mixtures, at different combinations and proportions, for the fabrication of conventional sintered bricks [1–3]. On the other side, management and valorization of massive quantities of solid residues recovered in steelmaking plants worldwide, such as electric arc furnace dust, electric arc furnace slag and ladle furnace slag, represent a significant issue. In steel industry, the production of 1 ton of steel results in generation of 2– 4 ton of various types of waste by-products [4], while 1 ton of stainless steel waste is produced per 3 tons of stainless steelmaking [5]. Taking into account the quantities of steel by-products, their proper disposal and handling remains both dangerous and expensive task, and therefore, their safe utilization can be environmentally and financially beneficial. Blast furnace slag and steel slag are already competitive raw materials in the mineral industry, and blast furnace slag use in the cement industry currently increases, resulting in production cost reduction. Also, electric arc furnace slag is widely used in the road and pavement construction and is recently studied for the development of vitreous ceramic tiles [4,6,7]. Especially, the recycling of electric arc furnace dust (EAFD) is very important, because it is one of the major steel by-products, included in the European Waste Catalogue [8], and produced worldwide in large quantities [9–12]. EAFD is generated from the volatilization of heavy metals when steel scrap is melted in the electric arc furnace. Volatilized metals are oxidized and subsequently solidified and detained in the form of fine powder in specially designed filters, which are placed in the EAF gas stream cleaning system [13–16]. The use of EAF technology in the steelmaking industry has been increasing considerably over the last decades, resulting in the production of significant quantities of solid residues. The world generated steel dust per year has been
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کلمات کلیدی:
Development of extruded and fired bricks with steel industry ... - INFONA https://www.infona.pl/.../bwmeta1.element.elsevier-fcb7df4a-34f9-3289-893e-6a8db5ea... by VG Karayannis - 2016 - Related articles According to the results, the development of extruded and fired bricks with up to 15wt% recycled steel industry byproduct is feasible without significant variations ... [PDF]Manufacturing of Brick - Brick Industry Association www.gobrick.com/portals/25/docs/technical%20notes/tn9.pdf Dec 9, 2006 - Brick is made of clay or shale formed, dried and fired into a durable ceramic product. ... brick: extruded (stiff mud), molded (soft mud) and dry- pressed. ..... body and develop hardness, but are not impervious to moisture or ... Brick - Wikipedia https://en.wikipedia.org/wiki/Brick A brick is building material used to make walls, pavements and other elements in masonry ... Fired bricks are one of the longest-lasting and strongest building materials, .... For extruded bricks the clay is mixed with 10–15% water (stiff extrusion) or ... on a design developed by British engineer W. Bull in the late 19th century. [PDF]Compressive strength of extruded unfired clay masonry units - Opus opus.bath.ac.uk/16596/1/coma162-105.pdf by A Heath - 2009 - Cited by 28 - Related articles energy from the production of fired bricks goes into firing.2. With the increasing ... by high-energy materials, particularly in developed countries. Commercially ... Sustainable Development and Planning VII: https://books.google.com/books?isbn=1845649249 Ö. Özçevik, C.A. Brebbia, S.M. Şener - 2015 - Architecture ... frame house with conventional fired brick masonry according to modern construction practices; ... The insulation material is extruded polystyrene, 70 mm thick. [PDF]DEVELOPMENT OF AN UNFIRED CLAY MASONRY SYSTEM opus.bath.ac.uk/48038/1/UnivBath_MPhil_2012_CW_Fourie.pdf by C Fourie - 2012 - Related articles 2.9.3 Extrusion of green bricks. 27. 2.9.4 Drying and firing. 27. 2.10 Conclusion. 29. 2.11 References. 29. 3. DEVELOPMENT OF UNFIRED CLAY MASONRY ...
