Introduction to Recycled Steel

What is/are Recycled Steel?

Recycled Steel - The product stage was the second most significant CO₂ contributor therefore low carbon strategies, such as use of recycled steel, light weight brick, and SCM’s for mortar and concrete, were selected. ^[1] Buildings made of recycled steel-framed roof, brick walls, and green concrete used in slab footing, showed higher sustainability performance among case study buildings. ^[2] The six sleeper types are made from copper-treated wood, untreated wood, recycled steel-reinforced plastic (PE), virgin steel-reinforced plastic (PE), glass-fiber-reinforced plastic (virgin PU) and Sulphur-based concrete (instead of cement-based concrete). ^[3] The use of "recycled steel" to reduce environmental impacts is being considered by various organisations because such steel can contribute to a reduction in CO2 emissions compared with steel made of iron ores. ^[4] This study involved modeling and simulation of carburized cutting tool developed from recycled steel with palm kernel shell as carbon additive. ^[5] Recycled steel is a key material for sustainable development. ^[6] The electric arc furnace dust (EAFD) of recycled steelmaking contains large amount of iron, but high content of non-ferrous metals in them, in particular zinc, and makes it impossible to return them into the ferrous metallurgy process stages [1]. ^[7]

electric arc furnace

Secondary steel production using mainly steel scrap in electric arc furnace (EAF-scrap) is 24% of global production and has both the lowest energy consumption and is technically simplest to decarbonize through electrification but is limited in market share to recycled steel capacity. ^[1] Compared to the production via the integrated route, the melting of recycled steel scrap and directly reduced iron in an electric arc furnace operated on green power constitutes a way to reduce energy consumption and CO2-emissions. ^[2]

recycled steel fiber

Impact Resistance of Concrete with Recycled Steel Fibers and Crumb Rubber. ^[1] In this research, the properties of concrete made with recycled concrete aggregate (RCA) and reinforced with recycled steel fibers from waste tires (RSF) were investigated. ^[2] 5, and 1% by volume of recycled steel fibers from scrap tires (RSF). ^[3] The use of Recycled Steel Fiber (RSF) extracted from waste tyres in fiber reinforced concrete can be of great profitable engineering applications however the choice of suitable length and volume fractions of RSF is presently the key challenge that requires research exploration. ^[4] The paper investigates the combined effect of waste glass powder (WGP) that has been utilized as a substitution for fine aggregate in varying percentages of 0%, 3%, 6%, 9%, 12% and 15% and further reinforcing it with recycled steel fibers (RSF), drawn from waste tires by volume of concrete. ^[5] Recycled steel fibers (RSF) from tires could offer a viable substitute of industrialized fibers in a more sustainable and eco-friendly way. ^[6] The main purpose of this study is to evaluate the performance of recycled steel fibers added in concrete to form a segment. ^[7] The main purpose of the present work is to study the mechanical behavior and durability performance of recycled steel fiber reinforced concrete (RSFRC) under a chloride environment. ^[8] mechanical and durability) behavior of recycled steel fiber (RSF) extracted from the shredded tire in self-consolidating concrete (SCC). ^[9] A recycled tire, including rubber and recycled steel fiber, can be introduced in cement concrete. ^[10] Among different types of fibers employed in concrete technology to date, the application of recycled steel fibers produced from end-of-life car tires appears to be a viable approach towards environmentally friendly construction. ^[11] In this experimental research, the performance of recycled-aggregate concrete (RAC) containing recycled coarse-aggregate (RCA) and recycled steel fibers (RSF) is studied. ^[12] In this paper, a comprehensive review was carried out on the influence of recycled plastic fibers (RPFs), recycled carpet fibers (RCFs) and recycled steel fibers (RSFs) on the fresh, mechanical and ductility properties of concrete. ^[13] This paper is focusing on feasibility of using recycled steel fibers from waste tires as reinforcement in functionally graded self-compacting concrete (SCC). ^[14] So, this study aimed to show the effect of recycled steel fibers from industrial wastes on the flexural behavior of reinforced concrete beams. ^[15] For structural elements exposed to chloride environments, an important aspect of Recycled Steel Fiber Reinforced Concrete (RSFRC) durability is the corrosion resistance. ^[16] The effect of shredded recycled steel fibers (SRSF) was generally dependent on other components of the mixture. ^[17] Experimental results indicated as compared to control plain concrete specimen, use of recycled steel fiber and glass fibers in concrete mix increased flexural property of concrete by 19. ^[18] Under chloride attack, an important aspect of Recycled Steel Fiber Reinforced Concrete (RSFRC) durability is its corrosion resistance. ^[19] Experimental investigations on the mechanical properties of ultra-high performance concrete (UHPC) incorporating two types of recycled steel fiber processed from waste tires and three types of industrial steel fiber were carried out for comparison. ^[20] The variables used in the analyses were the concentration of recycled steel fibers (volume fraction = 0. ^[21] 5 and 7 kg/m 3 in concrete with recycled rubber granules, and 50 and 35 kg/m 3 in concrete with recycled steel fibers. ^[22]

recycled steel fibre

The sandwich panel, which was designed for the structural, thermal and acoustic refurbishment of building facades, comprises three main components: (i) thin outer layers of Recycled Steel Fibre Reinforced micro–Concrete (RSFRC) that fulfil the strength, ductility and durability requirements of the panel; (ii) a lightweight core made of polystyrene that provides thermal insulation; and (iii) internally distributed glass fibre reinforced polymer (GFRP) connectors that join the different layers of the panel, providing an adequate structural behaviour to the composite system. ^[1] A detailed comparative analysis of mechanical and physical features of the concrete composite with the addition of recycled steel fibres (RSF) in relation to the steel fibre concrete commonly used for industrial floors was conducted. ^[2] Eco-efficient Ultra-High Performance Concrete (E-UHPC) containing Recycled Steel Fibres has been recently developed to reduce the cost and environmental impact of UHPC in the construction industry. ^[3] This paper examines the effectiveness of recycled steel fibres (obtained from machining process discards) in increasing the ductility of concrete. ^[4] Recycled steel fibres are separately added to SCC mixes at volume fraction of 0. ^[5]

recycled steel powder

In this study, we employ recycled steel powder (reused after 113 building cycles) in the SLM process to print multiple shaped components and systematically characterize the microstructure and mechanical properties (indentation, tensile, and Charpy testing). ^[1] We have also performed rarely reported synchrotron surface characterization of both powder sets in order to measure the level of oxidation of the individual metallic elements present in the virgin and recycled steel powder and the way such chemical composition changes following use in the manufacturing process. ^[2]

recycled steel slag

It has been found that the chemistry of welds deposited using recycled steel slag is acceptable in accordance with ASME specifications. ^[1] The present study aims at developing models to predict the various mechanical properties of ternary blended (ground granulated blast furnace slag (GBFS) + microsilica) self-consolidating concretes (SCCs) made with crushed granite stone (CGS) and recycled steel slag (RSS) as coarse aggregate. ^[2]