Recycled Steel(再生钢)研究综述
Recycled Steel 再生钢 - 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]产品阶段是第二个最重要的二氧化碳贡献者,因此选择了低碳策略,例如使用再生钢、轻质砖以及用于砂浆和混凝土的 SCM。 [1] 由回收钢架屋顶、砖墙和用于板基的绿色混凝土制成的建筑物在案例研究建筑物中表现出更高的可持续性表现。 [2] 六种轨枕类型由经过铜处理的木材、未经处理的木材、再生钢增强塑料 (PE)、原始钢增强塑料 (PE)、玻璃纤维增强塑料(原始 PU)和硫基混凝土(代替水泥基混凝土)。 [3] 各种组织正在考虑使用“再生钢”来减少对环境的影响,因为与铁矿石制成的钢相比,这种钢有助于减少二氧化碳排放。 [4] 本研究涉及以棕榈仁壳为碳添加剂的再生钢开发的渗碳刀具的建模和仿真。 [5] 再生钢是可持续发展的关键材料。 [6] 再生炼钢的电弧炉粉尘(EAFD)含有大量的铁,但其中含有高含量的有色金属,特别是锌,使其无法返回到黑色冶金工艺阶段[1]。 [7]
electric arc furnace 电弧炉
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]主要在电弧炉中使用废钢(EAF-scrap)的二次钢生产占全球产量的 24%,能耗最低,通过电气化脱碳在技术上最简单,但在回收钢产能方面的市场份额有限。 [1] 与通过综合路线的生产相比,在绿色电力运行的电弧炉中熔化回收废钢和直接还原铁构成了减少能源消耗和二氧化碳排放的方法。 [2]
recycled steel fiber 再生钢纤维
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]再生钢纤维和碎橡胶混凝土的抗冲击性。 [1] 在这项研究中,研究了用再生混凝土骨料 (RCA) 制成并用废轮胎再生钢纤维 (RSF) 增强的混凝土的性能。 [2] 5,以及 1% 的废轮胎回收钢纤维 (RSF)。 [3] 在纤维增强混凝土中使用从废轮胎中提取的再生钢纤维 (RSF) 可以带来巨大的工程应用,但是选择合适的 RSF 长度和体积分数是目前需要研究探索的关键挑战。 [4] 本文研究了废玻璃粉 (WGP) 的综合效果,该废玻璃粉 (WGP) 已被用作替代细骨料的 0%、3%、6%、9%、12% 和 15% 不同百分比的细骨料,并进一步用回收材料强化它钢纤维 (RSF),从废轮胎中提取的混凝土体积。 [5] 轮胎中的再生钢纤维 (RSF) 可以以更可持续和环保的方式提供工业化纤维的可行替代品。 [6] 本研究的主要目的是评估添加到混凝土中以形成节段的再生钢纤维的性能。 [7] 本工作的主要目的是研究再生钢纤维混凝土(RSFRC)在氯化物环境下的力学行为和耐久性能。 [8] 从碎轮胎中提取的再生钢纤维 (RSF) 在自密实混凝土 (SCC) 中的力学和耐久性) 性能。 [9] 可以在水泥混凝土中引入再生轮胎,包括橡胶和再生钢纤维。 [10] 迄今为止,在混凝土技术中使用的不同类型的纤维中,使用报废汽车轮胎生产的再生钢纤维似乎是实现环保建筑的可行方法。 [11] 在本实验研究中,研究了含有再生粗骨料 (RCA) 和再生钢纤维 (RSF) 的再生骨料混凝土 (RAC) 的性能。 [12] 本文对再生塑料纤维(RPFs)、再生地毯纤维(RCFs)和再生钢纤维(RSFs)对混凝土新拌性能、力学性能和延性性能的影响进行了综合评述。 [13] 本文重点探讨了在功能级配自密实混凝土 (SCC) 中使用从废轮胎中回收的钢纤维作为增强材料的可行性。 [14] 因此,本研究旨在展示从工业废料中回收的钢纤维对钢筋混凝土梁弯曲行为的影响。 [15] 对于暴露于氯化物环境的结构元件,再生钢纤维增强混凝土 (RSFRC) 耐久性的一个重要方面是耐腐蚀性。 [16] 切碎的回收钢纤维 (SRSF) 的效果通常取决于混合物的其他成分。 [17] 实验结果表明,与对照素混凝土试件相比,在混凝土混合物中使用再生钢纤维和玻璃纤维可使混凝土的弯曲性能提高 19 倍。 [18] 在氯化物侵蚀下,再生钢纤维混凝土 (RSFRC) 耐久性的一个重要方面是其耐腐蚀性。 [19] 采用两种废旧轮胎再生钢纤维和三种工业钢纤维对超高性能混凝土(UHPC)的力学性能进行了试验研究,以进行比较。 [20] 分析中使用的变量是回收钢纤维的浓度(体积分数=0. [21] 5 和 7 kg/m 3 用于再生橡胶颗粒混凝土,50 和 35 kg/m 3 用于再生钢纤维混凝土。 [22]
recycled steel fibre 再生钢纤维
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]该夹芯板专为建筑外墙的结构、热力和声学翻新而设计,由三个主要组成部分组成:(i) 满足强度、延展性和耐久性要求的再生钢纤维增强微混凝土 (RSFRC) 薄外层面板的; (ii) 由聚苯乙烯制成的轻质芯材,可提供隔热; (iii) 内部分布的玻璃纤维增强聚合物 (GFRP) 连接器,用于连接面板的不同层,为复合材料系统提供足够的结构性能。 [1] 对添加再生钢纤维 (RSF) 的混凝土复合材料的机械和物理特性与工业地板常用的钢纤维混凝土进行了详细的比较分析。 [2] nan [3] 本文研究了回收钢纤维(从机械加工过程中产生的废料)在提高混凝土延展性方面的有效性。 [4] 回收的钢纤维以 0 的体积分数单独添加到 SCC 混合物中。 [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]在这项研究中,我们在 SLM 工艺中使用回收钢粉(在 113 次建造循环后重复使用)来打印多个成型部件,并系统地表征微观结构和机械性能(压痕、拉伸和夏比测试)。 [1] 我们还对两种粉末组进行了很少报道的同步加速器表面表征,以测量原始和回收钢粉末中存在的单个金属元素的氧化水平,以及这种化学成分在制造过程中使用后的变化方式。 [2]
recycled steel slag 回收钢渣
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]已经发现,根据 ASME 规范,使用回收钢渣熔敷的焊缝化学成分是可以接受的。 [1] 本研究旨在开发模型来预测由碎花岗岩石材 (CGS) 和再生钢渣 (RSS) 制成的三元混合(磨碎粒状高炉矿渣 (GBFS) + 硅微粉)自固结混凝土 (SCC) 的各种力学性能作为粗骨料。 [2]