Chemical Composition And Content Of Steel Slag
Use of steel slag as sustainable construction
Chemical compositions and utilization of steel slag were reviewed and high contents of heavy metals The disposal of steel slag at landfills not only wastes valuable resources but also causes serious pollutions to the environment However the direct use of untreated steel slag poses a great risk to the mechanical properties and durability of the steel slag derived composites In recent
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15/07/2010· The results show that the slag is a crystalline heterogeneous material whose main components are iron oxides calcium magnesium compounds hydroxide oxide silicates and carbonate elemental iron and quartz The slags are porous materials with specific surface area of 11 m 2 g 1 containing both mesopores and macropores
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Chemical compositions and utilization of steel slag were reviewed and high contents of heavy metals The disposal of steel slag at landfills not only wastes valuable resources but also causes serious pollutions to the environment However the direct use of untreated steel slag poses a great risk to the mechanical properties and durability of the steel slag derived composites In recent
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The effects of steel slag with 0 10% 20 % and 40% content on the chemical shrinkage autogenous shrinkage internal relative humidity and drying shrinkage of calcium sulfoaluminate cement paste were studied The results show that the compressive strength of calcium sulfoaluminate cement paste at an early stage decreases gradually when the content of steel slag increases
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26/10/2011· 3 Chemical Composition of Steel Slags Both BOF and EAF slags are formed during basic steelmaking operations as explained above Therefore in general the chemical and mineralogical compositions of BOF and EAF slags are similar Calcium oxide and iron oxide are the two major chemical constituents of both EAF and BOF slags Ladle slag is generated during the steel refining processes in
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When corrosion resistant steel is blown with oxygen in arc steelmaking furnaces the water cooled lance is usually positioned at the level of the slag melt at a height of no less than 0 1 0 4 m
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20/02/2020· Chemical and Mineralogical Composition of Steel Slag The chemical and mineralogical characteristics of steel slag are not only useful for knowing its composition but also support in its classification for its possible utilization as a construction material Energy dispersive X ray spectroscopy EDS of the steel slag has been performed and the atomic percentage of elements is obtained to
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Chemical composition of steel slag Oxides/% CaO SiO 2 Al 2 O 3 Fe 2 O 3 FeO MgO MnO P 2 O 5 BOFS 45 60 10 15 1 5 3 9 7 20 3 13 2 6 1 4 EAFS 30 50 11 20 10 18 5 6 8 22 8 13 5 10 2 5 Table
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compositions especially the content of active minerals C 3 S C 2 S and C 2 F Part of FeO exists in RO phase and fayalite Chemical Compositions of Converter Steel Slag of Some Steel Plants in China wt% Table Between Alkalinity and Activity Remarks a Alkalinity = CaO/ SiO 2 P 2 O 5 b Mortar — 35% steel slag powder 40% blast furnace slag 20% Portland cement
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7 lignes· Air cooled steel slag may consist of big lumps and some powder The mineral composition of
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Although the chemical composition of slag may remain unchanged physical properties vary widely with the changing process of cooling In an integrated steel plant 2 4 tonnes of wastes including solid liquid and gas are generated for every tonne of steel produced Pertinently the concerns of today are to pay adequate emphasis on minimising waste generation recycling and re use of waste
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Chemical composition of iron and steel slag The primary components of iron and steel slag are limestone CaO and silica SiO 2 Other components of blast furnace slag include alumina Alsub>2 O 3 and magnesium oxide MgO as well as a small amount of sulfur S while steelmaking slag contains iron oxide FeO and magnesium oxide MgO The chemical composition of JSW Cement s GGBS
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The composition of ferrous slag is dominated by Ca and Si Steel slag may contain significant Fe whereas Mg and Al may be significant in Fe slag Calcium rich olivine group silicates melilite group silicates that contain Al or Mg Ca rich glass and oxides are the most commonly reported major phases in ferrous slag Calcite and trace amounts of a variety of sulfides intermetallic compounds
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20/02/2020· Chemical and Mineralogical Composition of Steel Slag The chemical and mineralogical characteristics of steel slag are not only useful for knowing its composition but also support in its classification for its possible utilization as a construction material Energy dispersive X ray spectroscopy EDS of the steel slag has been performed and the atomic percentage of elements is obtained to
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07/07/2020· The continuous cast and rolled ball bearing steel 100Cr6 mat no ASTM 52100 was used The chemical composition of the steel is shown in Table 1 All electrodes had a diameter of 70 mm and a bright machined surface Three different slags with Al 2 O 3 contents
Get Price[PDF] Ggbs chemical composition
Chemical composition of iron and steel slag The primary components of iron and steel slag are limestone CaO and silica SiO 2 Other components of blast furnace slag include alumina Alsub>2 O 3 and magnesium oxide MgO as well as a small amount of sulfur S while steelmaking slag contains iron oxide FeO and magnesium oxide MgO The chemical composition of JSW Cement s GGBS
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15/07/2010· The chemical and mineralogical composition of steel slag produced in two ArcelorMittal steel plants located in the North of Spain as well as the study of the influence of simulated environmental conditions on the properties of the slag stored in disposal areas was carried out by elemental chemical analysis XRF X ray diffraction thermal analysis and scanning electron microscopy with EDS
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The chemical and mineralogical composition of steel slag produced in two ArcelorMittal steel plants located in the North of Spain as well as the study of the influence of simulated environmental conditions on the properties of the slag stored in disposal areas was carried out by elemental chemical analysis XRF X ray diffraction thermal analysis and scanning electron microscopy with EDS
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shows that the carbon steel slags had higher alkalinity than the stainless steel slags Carbon steel slags contained much more iron oxide than the stainless steel slags Non ferrous metal elements as chromium are typically observed in stainless steel slags The phase contents of carbon steel slags characterized
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15/07/2010· The chemical and mineralogical composition of steel slag produced in two ArcelorMittal steel plants located in the North of Spain as well as the study of the influence of simulated environmental conditions on the properties of the slag stored in disposal areas was carried out by elemental chemical analysis XRF X ray diffraction thermal analysis and scanning electron microscopy with EDS
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9 lignes· Chemical composition of iron and steel slag The primary components of iron and steel
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20/02/2020· Chemical and Mineralogical Composition of Steel Slag The chemical and mineralogical characteristics of steel slag are not only useful for knowing its composition but also support in its classification for its possible utilization as a construction material Energy dispersive X ray spectroscopy EDS of the steel slag
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analysis of steel slag chemical composition and environmental man agement mentioned above a quantitative analysis of the crystal structure or the chemical state that determines the properties of steel slag needs to be conducted to clarify why and how many of the physical properties of steel slag manifest themselves In this techni cal report we shall describe the representative analysis
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The composition of ferrous slag is dominated by Ca and Si Steel slag may contain significant Fe whereas Mg and Al may be significant in Fe slag Calcium rich olivine group silicates melilite group silicates that contain Al or Mg Ca rich glass and oxides are the most commonly reported major phases in ferrous slag Calcite and trace amounts of a variety of sulfides intermetallic compounds
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Properties and Uses of Iron and Steel Slag MF 182 6 NATIONAL SLAG ASSOCIATION Page 2 CHEMICAL AND MINERALOGIC COMPOSITION Chemical analyses of blast furnace slags usually show that the four major oxides lime magnesia silica and alumina make up about 95% of the total Minor elements include
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