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Piles of steel slag, a solid waste generated from the iron and steel industry, could be seen due to no utility found for the past century. Steel slag has now gained much attention because of its new applications. The properties of slag greatly influence its use and thus had got varied applications. The chemical composition of steel slag varies as …
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Steel slag and fly ash-based steel fiber reinforced geopolymer mortars have been prepared and studied for its mechanical properties where 0.4% and 0.5% of steel fiber replaced geopolymer mortars reveals better compressive strength (38.6 Mpa at 28 days with improving ratio 22.9%) and flexural strength (7.9 Mpa at 28 days with improving …
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In this study, engineering properties of steel slag-fly ash-dolime (SFD) mixes were investigated for their effective utilization as base course material in flexible …
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3. Application/Uses. Manufacturing of Paving Blocks. 4. Salient Technical Features including Competing Features. These Paving blocks are produced from the geopolymerisation of industrial waste such as fly ash, granulated blast furnace slag, steel slag, and red mud in different combinations. Meets IS 15658:2006 specification
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3.2 Fly ash. The class F fly ash used was obtained from Raichuru Thermal Power Corporation, Raichur, Karnataka, tested as per IS3812:2013 . The properties of fly ash are given in Table 1. It also displays the chemical composition and physical parameters of Class-F fly ash, as determined by X-ray Fluorescence (XRF) analysis.
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The fly ash was obtained from Wuhan Qingshan Thermoelectric Plan, the specific surface area of this fly ash is 293 m 2 /kg, the apparent density is 2210 kg/m 3, its chemical compositions are listed in Table 1, its particle size distribution is illustrated in Fig. 2.. The phosphogypsum was obtained from Wuhan Inorganic Salt Chemical Plant, its …
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Fly ash: the use of low calcium fly ash (CSA Class F and Cl with CaO content < 20%) increases resistance to sulphate atta ck. Fly ashes with more than 20% CaO should be investigated for...
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Characterisation of LD slag of Bokaro Steel Plant Table 7 143 Dimension of 'fly ash–LD slag' brick S. No. Sample code Length (cm) Breath (cm) Height (cm) Volume (cm3) 1 A1 23.2 11.0 7.5 1914 2 A2 23.1 11.0 7.5 …
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The mixes were obtained with 0, 30 and 40 percent replacement of fine aggregate by steel slag besides using different percentage replacements (25% of cement by fly ash in three trials, 15% and 10% ...
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The paper deals with developing fly ash–Blast Furnace Slag (BFS) composite with additives like cement to utilize waste material in engineering applications. The additive-like cement with different proportions has gained particular attention worldwide because of the excellent bonding strength and enhancement of mechanical properties of …
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The treatments of fly ash added at 20-40 g•kg-1 and steel slag at 3-6 g•kg-1 had the pH values within 5.5-7.0, and the Superscript textneutral and weakly acidic soil environment was suitable ...
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IRON AND STEEL SLAG U.S. Geological Survey, Mineral Commodity Summaries, January 2022 Depletion Allowance: Not applicable. Government Stockpile: None. Events, Trends, and Issues: The availability of steel slag is tied closely to the rates of raw steel production and the cost consideration of recovering slag for use in low-value downstream applications.
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Steel slag (SS) is a kind of industrial waste resulting from the steel-refining process in a conversion furnace. Based on the raw materials and process used, its chemical compositions consists of CaO 45–60%, SiO 2 10–15%, Al 2 O 3 1–5%, Fe 2 O 3 3–9%, FeO 7–20%, MgO 3–13%, and P 2 O 5 1–4%, and the mineral compositions are …
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The present investigation is conducted to evaluate the effect of steel slag coarse aggregates on mechanical properties and fatigue behaviour of Alkali-Activated Slag Fly Ash Concrete (AASFC) mixes.
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Investigations on Alkali-Activated Slag/Fly Ash Concrete with steel slag coarse aggregate for pavement structures, International Journal of Pavement Engineering, 18:6, 500-512, DOI: 10.1080 ...
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This study explores the utilization of steel slag and fly ash in road construction to address the increasing demand for pavement materials and the scarcity of natural aggregates. For this purpose, steel slag–fly ash composite is stabilized with lime and ground granulated blast furnace slag (GGBS) to assess their utility as a subbase …
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The specific gravity and bulk density of LD slag samples were found to be high in comparison to fly ash samples. The EDS X-ray micro analysis showed that major elemental compositions of LD slag samples are O and Ca by weight. The XRF analysis showed that the major components of the LD slag samples are CaO, FeO and SiO 2. …
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The fly ash from a given power plant may vary with time ... corrosion protection for the reinforcing steel (4). Fly ashes will ... 4.4 Examples of projects using fly ash and slag in concrete ...
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Steel slag and fly ash-based steel fiber reinforced geopolymer mortars have been prepared and studied for its mechanical properties where 0.4% and 0.5% of steel fiber replaced …
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Both fly ash and slag can improve concrete's resistance to chloride attack [45], an important long-term durability attribute of concrete. Although fly ash and slag are considered avoided wastes [43, 46], certain processing and preparation of these materials may necessitate additional energy and emissions, which must also be quantified [45]. As ...
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Fly ash consists of fine particles of fuel that are driven out of coal-fired boilers, while steel slag is by-product of the steel industry, left over after a metal is separated from its raw ore. Both materials have been used as …
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3.1 Materials. According to ASTM C 618–19 (ASTM C 2019), the major binder employed in this study is a waste material created during coal-fired electricity generation that is low calcium FA.Steel slag, under ASTM C 989–2018 (ASTM C989, C989M–18a 2018), is the second alternative binder used in this study.Fly ash and steel …
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The environmental and economic efficiency of carbon gasification is demonstrated. It is simple to produce components from slag by casting. The cast …
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In the initial stage of converter blowing, the fly ash briquette is added when the furnace temperature is low. The low melting point fly ash briquette is rich in Fe2O3, which increases the FeO content in the slag, accelerates …
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Fly ash contains not only a large amount of iron, carbon and other elements (stainless steel fly ash also contains chromium, nickel and other elements), but also a certain amount of calcium oxide ...
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Hence, use of steel plant slag . ... in capping layer construction for low-volume traffic pavement projects. Due to its high apatite content, the remaining fraction (0–10 mm) can be exploited to ...
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Understanding the mechanical behavior of hybrid fiber-reinforced concrete (HFRC), a composite material, is crucial for the design of HFRC and HFRC structures. In this study, a series of compression experiments were performed on hybrid steel-polyvinyl alcohol (PVA) fiber-reinforced concrete containing fly ash and slag powder, with a focus …
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The mineralogy and microstructural alterations in fly ash (FA) and mixtures of steel slag–fly ash sta-bilized with lime and ground granulated blast furnace slag (GGBS) were …
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Based on the orthogonal test method, three levels were set separately for the L9 (3 4) test considering the proportion of FA (raw fly ash to grained fly ash), ratio of sodium hydroxide to liquid alkaline activator (LAA), and proportion of GBFS mixed with FA and solid–liquid ratio [(FA + GBFS): LAA] as factors influencing the geopolymer. The ...
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Liu, F., Ding, W. & Qiao, Y. Experimental investigation on the flexural behavior of hybrid steel-PVA fiber reinforced concrete containing fly ash and slag powder. Constr Build Mater 228, 116706 ...
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1.2.7 Chemical Composition. Chemical composition of fly ashes include silica (SiO 2), alumina (Al 2 O 3), and oxides of calcium (CaO), iron (Fe 2 O 3), magnesium (MgO), titanium (TiO 2), sulfur (SO 3), sodium (Na 2 O), and potassium (K 2 O), and unburned carbon (LOI). Amongst these SiO 2 and Al 2 O 3 together make up about …
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Influence of Steel Slag and Fly Ash on Strength Properties of Clayey Soil: A Comparative Study ... as alternative environmental additives in soil improvement projects. ... land within the plant ...
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By mixing concrete and fly ash, one can build longer-lasting structures, reducing the need for frequent maintenance or replacement, which in turn conserves materials and energy. Apart from using fly ash as an aggregate, fly ash is also used in brick or block format to lessen the infrastructural impact on the environment.
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A novel direct gas–solid mineral carbonation process using carbide slag doped fly ash to capture and mineralize CO 2 from flue gas was developed to overcome the barriers of long reaction time and large reactor size from aqueous processes. A laboratory-scale fixed bed reactor with a thermogravimetric analyser and a pilot-scale …
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In this study, SiO2–Al2O3–CaO–MgO steel slag ceramics containing 5 wt % MgO were used for the preparation of ceramic bodies, with the replacement of 5–20 wt % quartz and feldspar by fly ash.
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The utilization of fly ash (FA) and powdered granulated steel slag (PGSS) as additives in soil stabilization plays a crucial role in environmental, economic, and …
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reported production of 748,836 tonnes of Slag. Bhilai steel plant reported production of 1,557,343 tonnes Granulated slag. KIC Metaliks reported production of 19,400 tonnes of Granulated slag. Sky Alloys & ... by utilising blast furnace slag and fly ash generated from power plants. Expanded slag is formed through controlled
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FA, or pulverised fuel ash, is a byproduct of coal-fired power plants and is used as a mineral additive in cement and concrete. Fig. 1 shows a typical layout of a coal-burning generating station. Pulverized coal is blown into the burning zone of the furnace, where its combustible constituents, mainly carbon, hydrogen, and oxygen, ignite at …
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The data consist of GGBS (kg/m 3), Alkaline activator (kg/m 3), Fly ash (kg/m 3), SP dosage (kg/m 3), NaOH Molarity, Aggregate (kg/m 3), Temperature (°C) and compressive strength as output ...
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PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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