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EAF oxidizing slag as a by-product obtained during the process in steel making industry provides great opportunity to utilize it as an alternative to normally available coarse aggregates. The primary aim of this research was to evaluate the physical, mechanical, and durability properties of concrete made with EAF oxidizing slag in addition to ...
contact usdifferent depths to compare the thermal behavior of the asphalt layers with conventional and EAF slag aggregates. The section of the road consisted of one 4cm wearing course with open 0/8mm asphalt, using EAF coarse aggregate in one case and conventional coarse aggregate in the other. The temperature was measured at 2, 12 and 24 cm depth.
contact usChemical properties of steel slag coarse aggregates Constituent Si O2 Fe xO y Al 2O 3 CaO MgO MnO Cr 2O 3 TiO 2 Compositio n% 13.10 36.80 5.510 33.0 5.030 4.180 0.775 0.598 * The data were obtained by the manufacturer data sheet. Table 7. Physical and mechanical properties of steel slag coarse aggregates Property Results Specific gravity 3.48
contact usIn this research, ferro slag is used and M60 grade concrete of W/C ratio 0.28 was used respectively for the replacement of 0 to coarse aggregate by ferro slag aggregate for find out the ...
contact us· The test results concluded that concrete made with EAF oxidizing slag and fly ash (Mix C) had greater strength and durability characteristics when compared to Mix A and Mix B. Based on the overall observations, it could be recommended that EAF oxidizing slag and fly ash could be effectively utilized as coarse aggregate replacement and cement ...
contact usEAF steel slag using X-ray Diffraction (XRD) and Scanning Electric Microscope (SEM), six sets of laboratory mixtures were prepared. Each set were treated replacing various portions of limestone aggregates of the mix with EAF steel slag. Four point bending beam fatigue tests were performed
contact us· Electric arc furnace (EAF) slag has excellent mechanical properties that justify its use as aggregate in the manufacture of bituminous mixes. Its main properties, the problems with its application, and the important features of the mixtures made with this slag (mechanical behavior, resistance to fatigue and permanent deformation, moisture susceptibility, skid resistance, permeability, noise ...
contact usboth fine aggregate and coarse aggregate. GGBS is found to be finer than cement. Also presence of GGBS will retard the setting time of concrete compared to concrete containing OPC. Table-1: Properties of Electric Arc Furnace Properties Values Specific gravity 2.93 Uniformity coefficient, Cu 7.06 Los Angeles abrasion 51.68% Impact value 47.34
contact usBetween these, black/oxidising electric arc furnace (EAF) slag has been found to be suitable for structural concrete applications when used as replacement of traditional coarse aggregate.
contact ususing steel slag aggregate as a replacement for 20 percent of the coarse aggregate in the HMA. The trial section was part of a project that improved five miles of SR 203 by grinding out the existing pavement and replacing it with new pavement.
contact us· Abstract. Electric arc furnace (EAF) slag, a by-product of steelmaking recovered after the oxidizing process, is useful when employed as aggregate in hydraulic concrete and bituminous mixtures. Concrete made with EAF oxidizing slag as an aggregate shows good physical and mechanical properties and further study of its durability will ensure ...
contact usThe possibility of utilization of Electric Arc Furnace (EAF) slag produced in Bangladesh as a coarse aggregate in concrete. Electric Arc Furnace slag has been explored. Samples of slag was collected from a steel plant in Chittagong. X-Ray
contact usIt is signif- pected final density q(5% air), and the resulting composition (per icant to observe that compressive strength stabilizes, as expected, 1000 l of conglomerate) of both conglomerate containing fine nat- after the first 28 days for traditional conglomerate whereas it con- ural aggregates plus medium and coarse EAF slag and ...
contact usCoarse Aggregate Coarse aggregate used was angular crushed aggregate with ... of Paving Concrete with steel slag aggregate", 9th international conference on Concrete Pavements, 2008, pp. 836 – 853. ... and Shekarchi, M. (1996),"Utilization of electric arc furnace slag as aggregates in concrete" – Environmental Issue, ...
contact us· The mineral composition of blast furnace slag generally consists of melilite (Ca 2 MgSi 2 O 7 - Ca 2 Al 2 SiO 7) and merwinite (Ca 3 MgSi 2 O 8).Steelmaking slag (BOS or EAF) mainly consist of dicalciumsilicate (Ca 2 SiO 4), dicalciumferrite (Ca 2 Fe 2 O 5) and wuestite (Fe 1 -x- y,Mg x,Mn y)O z.. The physical properties of iron and steel slags depend on the chemistry as well as the cooling ...
contact us· Electric arc furnace (EAF) slag is a by-product of steel production in electric arc furnaces. Several studies have tried to demonstrate its suitability in civil engineering application, such as in bituminous mixtures and cement-based materials, due to its good physical, chemical and mineralogical properties. Particularly the re-use as coarse aggregate …
contact usbut since some investigation [11] revealed that EAF slag, as fine aggregates in the ordi-nary concrete, caused pop-out in concrete walls, the more appropriate use of EAF slag seems to be in substitution to medium or coarse aggregates. In this sense, there are some works which are referred to the use of EAF slag in ordinary concretes [12, 13].
contact usAbstract. This specification covers crushed steel slag coarse and fine aggregates suitable for use in bituminous paving mixtures. The coarse and fine aggregates shall consist of hard, tough, durable pieces of steel slag, and shall be processed, as necessary, by crushing or screening, or both, and magnetic separation for the removal of metallics.
contact us· 57 conducted to assess the possibility of developing concrete based on EAF oxidizing slag aggregates 58 (EAF), the improvement effect of concrete on compressive strength, and the enhancement of 59 durability [26- 28]. EAF oxidizing slag contains iron (15 – 30%), and has a high density of 3.0-3.7 t/m3. 60 Therefore, it is believed that such ...
contact us· EAF slag is a non-metallic by-product that consists mainly of silicates and oxides formed during the process of refining the molten steel. Raw EAF slag often appears as grey or black colored lumps, depending on its ferrous oxide content. This type of slag generally has a rough surface texture, with a surface pore diameter of 0.01–10 μm.
contact us66.67% steel slag aggregates as a replacement of the coarse aggregate. Qurishee et al.(2016) in their experimental study on the use of slag as coarse aggregate and its effect on mechanical properties of concrete. It was reported that compressive strength of concrete made by replacing coarse aggregate with slag is higher than normal conventional
contact usBROADER USE OF STEEL SLAG AGGREGATES IN CONCRETE JIGAR P. PATEL ABSTRACT . Steel slag is an industrial byproduct obtained from the steel manufacturing industry. It is produced in large quantities during the steel-making operations which utilize Electric Arc Furnaces (EAF). Steel slag can also be produced by smelting iron ore
contact usthe natural coarse aggregate by the steel slag coarse aggregate were 0%, 33.33%, 66.67% and , respectively. In the last two groups, M5, M6 and M7, both coarse and fine steel slag aggregate were used with percentage . The ratio of fine to coarse aggregate …
contact usThe possibility of utilization of Electric Arc Furnace (EAF) slag produced in Bangladesh as a coarse aggregate in concrete. Electric Arc Furnace slag has been explored. Samples of slag was collected from a steel plant in Chittagong. X-Ray
contact uselectric arc furnace slag as coarse aggregate for structural concrete Analysis of the application of ladle furnace slags from steel-works, of low and high alumina, in masonry mortars A real-world experience of valorization of steel slags in the construction sector, two needs and a successful solution ...
contact usEAFS is produced in an Electric Arc Furnace. The slag is dark grey in colour and is characteristically harder than blast furnace slag (BFS). It has a density about 20 - 25% greater than basalt or BFS. It crushes to a cubical shape. EAFS in common with most steel slags, is subject to slight dimensional expansion until it fully hydrates.
contact usEAF (Electric Arc Furnace) slag aggregate was used replacing 30% of crushed lime stone aggregate and it is found that the compressive strength increased in all ages [12]. According to [13], slag as coarse aggregate in normal strength concrete increases workability, compressive, flexure and split tensile ...
contact usCoarse aggregates from EAF slag are produced into two particle size distributions, 5-12mm and 12-16mm. The sand 0-3mm used in all cases is lime-stone. The open graded form of the course is achieved through the absence of 2,5 to 5mm size
contact usnon-renewable natural aggregates, such as limestone and sand. The exploitation of these materials causes another negative impact on the environment. The objective of this work was to evaluate the feasibility of partially or totally replacing the natural aggregates with EAF slag and BFD powder, as coarse aggregate and fine
contact us· During oxidation refining, electric arc furnace (EAF) oxidizing slag, which contains lower free-CaO than normal EAF slag, can be obtained . There is a need to find a method that can recycle SM slag as a more highly valued material due to the fact that the annual world production of SM slag is 3.2 billion tons [ 10 ].
contact us· Electric arc furnace (EAF) slag is a strong, dense, none porous aggregate that is cubical in shape, has good resistance to polishing and has an excellent affinity to bitumen. This makes it an ideal aggregate for asphalt surface materials and road surface treatments as it produces materials that are resistant to deformation (rutting), safe and ...
contact us· sustainability Article Responses of Concrete Using Steel Slag as Coarse Aggregate Replacement under Splitting and Flexure Thi-Thuy-Hang Nguyen 1, Hong-Ha Mai 2, Duc-Hung Phan 1 and Duy-Liem Nguyen 1,* 1 Faculty of Civil Engineering, Ho Chi Minh City University of Technology and Education, 01 Vo Van Ngan St, Thu Duc District, Ho Chi Minh City 700000, Vietnam; …
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