With the increase in temperature and carbonation time, the performance of steel slag aggregate gradually improved and the pulverization rate, expansion rate, and crushing value gradually …
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Slag aggregate sample was collected from the crushing plant of steel slag of a local steel manufacturing company. It was found that some slag aggregates were light in weight with a lot of voids and some were heavier with a little or no voids. Therefore, the slag aggregates were separated into three types, such as
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Steel slag is the waste slag generated after steel smelting, which has cementitious activity. However, untreated steel slag can damage the integrity of steel slag concrete due to its harmful expansion. This study prepared …
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This disparity can be attributed to the porous microstructure of steel slag. The crushing value of BOFS (12 - 15%) is equal to or slightly lower than that of natural aggregates such as granite (17%) and limestone (13.9%). This indicates that the resistance of BOFS to fragmentation under compressive loads is similar to or slightly better than ...
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PDF | On Aug 3, 2023, Zhijun Chen and others published Autoclaved steel slag coarse aggregate: A potential solution for sustainable concrete production | Find, read and cite all the research you ...
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Crushing Value. The steel slag aggregate with a size range of 9.5–13.2 mm was utilized in the experiment, following the methodology for determining the crushing index value as stipulated in the test methods of highway engineering (JTG E42-2005) . The mould containing the sample was placed on the press, and the pressure testing machine was ...
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Tata Aggreto is a first ever branded product created to upcycle Steel Slag into sustainable aggregates. It is a greener substitute of natural aggregates used in road construction and promises better quality, consistent size and improved availability. ... The free metallic are magnetically separated and the non-metallic slag left after the Slag ...
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The workability of the controlled concrete (prepared using coarse aggregates) and the steel slag mixed concrete (prepared by replacing 45 % of coarse aggregates by steel slag aggregate) is similar
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Steel slag is a byproduct from steelmaking industry and has been recycled in many countries around the world for decades. One of the main applications of the recycled steel slag is aggregate for ...
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Due to the potential to advance the concrete industry towards the development of sustainable construction materials, there has been a growing interest in researching the combination of geopolymer binders with recycled aggregates (RA) to address the challenge of utilizing CDW and industrial waste [9], [10], [11].On one hand, industrial waste such as blast …
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The carbonated artificial steel slag aggregates had reasonable physical properties in terms of crushing value, density, and water absorption. The carbonated artificial steel slag aggregates had densities in the range of 1230–1300 kg/m 3, being lower than the natural limestone which had a density of 1450 kg/m 3.
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Material: Steel slag Application: After being processed, steel slag can be used as smelter flux, cement raw material, construction aggregate, foundation backfill, railway ballast, road pavement, brick, slag fertilizer and soil amendment, etc. Equipments: Jaw Crusher, Hydraulic Cone Crusher, Vibrating Feeder, Vibrating Screen, Magnetic Separator, Belt Conveyor
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Bruno Guimaraes Delgado et al. [14] demonstrated that the addition of inert steel slag (ISAC) aggregate to granite aggregate can significantly improve the crushing resistance, stability and elastic modulus of ballast. These improvements are due to the good interlocking properties of steel slag particles and less surface wear.
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Slag aggregate sample was collected from the crushing plant of steel slag of a local steel manufacturing company. It was found that some slag aggregates were light in weight with a lot …
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ACV determination included the preparation of the aggregate sample of at least 4 kg weighing (Fig. 12, a), drying to a constant mass (Fig. 12, b), placing the aggregate sample into a steel cylinder (Fig. 12, c), crushing the aggregate in a steel cylinder on a hydraulic press with a force of 200 kN (Fig. 12, d), pouring crushed aggregate out of ...
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Steel aggregates have a high abrasion and crushing resistance for road applications: air cooled blast furnace products bond particularly well to cement and bitumous binders. ... Steel slag aggregates have high abrasion and skid resistance properties making them ideal for use in asphalt surface course materials; For sales and technical contact ...
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... prepared steel slag aggregate after carbonation treatment has a low expansion rate, good volume stability, can be better used in the building materials industry, especially in concrete...
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From the comparison results in Figure 5 regarding the crushing values of steel slag, basalt, and limestone coarse aggregates, it can be seen that the crushing value of steel slag is not superior to that of basalt or limestone …
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The autoclaved steel slag aggregates (ASA) had apparent density, water absorption, and crushing values of 3300 kg/m 3, 1.91%, and 8.0%, respectively, while the original steel slag aggregate (OSA) had corresponding values of 3150 kg/m 3, 3.25%, and 10.3%. Evidently, after autoclaving, the SA's apparent densities slightly increased while its ...
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Application: After being processed, steel slag can be used as smelter flux, cement raw material, construction aggregate, foundation backfill, railway ballast, road pavement, brick, slag fertilizer …
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Steel slag aggregates typically have a high polished stone value (58 to 63 PSV) which can be used where a high friction surface of sprayed seal or asphalt is required. Pavement Construction SFS aggregate can be used as a pavement material. The crushed SFS can be used as is, or blended with other ...
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Crushing of industrial waste aggregates is less dependent on its initial density. ... These non-traditional materials include fly ash, steel slag, recycled concrete aggregates and other industrial wastes. Being newly introduced to the construction field, the properties of these materials are not completely revealed till now. ...
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Amidst the rapid expansion of the road construction industry, the demand for natural aggregates has increased, prompting extensive exploration into the viability of steel slag as a substitute for asphalt concrete [1].Steel slag offers distinct advantages in road construction, chief among them being its exceptional angularity, robust texture, high mechanical strength, …
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After the initial crushing by a jaw crusher, the steel slag is reduced to a size smaller than 60 mm. Then, the crushed steel slag is conveyed to a vibrating screen, where steel slag particles larger than 25 mm in diameter are transported to a cone crusher for secondary crushing, resulting in a particle size smaller than 25 mm.
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When used as an asphalt aggregate, bitumen coating formed on aged slag particles limits the hydration of the calcium and magnesium oxides due to reduced water contact [23]; and suppresses the ...
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The crushing characteristics of coarse aggregates for asphalt concrete were investigated under static and dynamic aggregate crushing value tests (ACVTs). The effect of various compaction loads was also examined by using a Marshall hammer, gyratory compactor and steel roller. Six types of coarse aggregates were tested, including basalt aggregate, steel …
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After carbonation, the steel slag aggregate had a pulverization rate of 2.4%, an expansion rate of 0.23%, a crushing value of 23%, and a carbon sequestration efficiency of 11.27% per unit weight ...
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The steel slag aggregate increases the durability of concrete under chloride attack, which allows the matrix to withstand the internal stresses caused by the corrosion process. ... Aggregates - Crushing Resistance Agregados, Rio de Janeiro, 2013. Google Scholar [47] Brazilian Association Of Technical Standards, NBR 7809 - Coarse Aggregate ...
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Utilizing treated steel slag as coarse/fine aggregate in concrete production is a high-value solution that can alleviate the worry about resource depletion and solve the negative impact of steel …
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Steel slag particles can potentially be used as aggregates in concrete production. However, the volume stability of steel slag is poor, and the direct use of untreated steel slag...
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