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In concrete mixtures with steel slag aggregate, slag/total aggregate ratio was selected as 0.45, 0.50, 0.55, 0.60 and 0.65. In the concretes containing crushed …
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24 rowsFrom Table 7.13, comparison of steel slag aggregates versus natural aggregates, it is possible to use steel slag as aggregates in the construction of road. …
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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 of aggregate.
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The density of steel slag is high, generally above 3.2 g/cm 3, while the density of natural aggregates is about 2.6–2.9 g/cm 3; steel slag has the advantage of physico-mechanical indices, which show that its crushing value and Los Angeles abrasion are higher than that of natural aggregates by 4.7–20.5% and 12.0–52.7%, respectively.
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Steel slag is a solid waste produced in crude steel smelting, and a typical management option is stockpiling in slag disposal yards. Over the years, the massive production of steel slags and the ...
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The density of steel slag is high, generally above 3.2 g/cm 3, while the density of natural aggregates is about 2.6–2.9 g/cm 3; steel slag has the advantage of …
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The slag is used as an aggregate in construction; however, its high crushing and attrition values, as well as water absorption exceeding standards, need attention, especially for load-bearing applications like runways and roads [].Slag, a by-product of metallurgical processes, is an environmentally friendly alternative to …
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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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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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This review paper focuses on the role of steel slag aggregate (SSA) and recycled coarse aggregate (RCA) in concrete, considering different percentages of SSA …
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To prepare the original or recycled slag (Fig. 1) or asphalt mixtures, the original and recycled aggregates were grained and mixed for reaching a uniform aggregate grinning matching.As shown in Fig. 2, similar to previous studies [26], the recycled slag and RAP were mixed with 3 and 6 wt% of oil for 2 hrs for …
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Steel slag contributes to high bulk crushing strength of adsorptive aggregates and the addition of miscanthus significantly weakens the bulk crushing strength. When the content of miscanthus is 5%, SS75M5 has a minimum bulk crushing strength of 1.9 MPa, which is 62.7% lower than the adsorptive aggregate without any …
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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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As reported, the carbonated steel slag-based artificial aggregates gained crushing values of 15.68–22.48% and bulk densities of 1230–1300 kg/m 3, and moreover, the concrete cast with the carbonated steel slag-based artificial aggregates showed very stable volume when cured in 80 °C water. In order to further reduce the carbonation …
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The paper reviews recent developments in well-known applications to the steel slag such as aggregate in bituminous mixes, cement ingredient, concrete …
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The crushing values of the carbonated steel slag aggregates were lower than that of the aggregates prior to carbonation. Similar to the bulk density and water absorption, the addition of EDTA facilitated to reduce the crushing values of steel slag aggregates. E2S1 had the lowest crushing value of 9.88% while E0S1 had the highest …
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The use of steel slag aggregate in HMA may have some disadvantages due to potential volume expansion [13], increased bitumen content, ... The slag processing includes primary crushing for the recovery of ferrous metals, followed by secondary crushing into different aggregate sizes. The processed steel slag aggregate was …
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Steel slag aggregates (SSA) can replace natural aggregates in asphalt and cement-based road construction, ... (RCA), prepared through the crushing and grading of waste concrete, which …
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There is a growing need to find ways to reuse fine concrete waste from the construction industry. In this study, recycled concrete fines were granulated and used as lightweight aggregates. Ladle slag, a steel industry residue, was used as a co-binder in different ratios (0, 10, 20, and 30%). The materials were blended and granulated, and …
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A comprehensive analysis of the requirements to be met by raw materials used in asphalt mixes was performed, and a pilot test was carried out with two different mixtures: one mix with limestone as coarse …
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that steel slag aggregate surpasses natural aggregate by 27.72% in aggregate abrasion test, 31.41% in aggregate impact value test, 1.94% in ... 2.6 CRUSHING VALUE TEST OF STEEL SLAG In this experiment the pavement material which can fail is by crushing under compressive stress is identified. This test indicates the strength
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The study shows that autoclaving treatments significantly changed the characteristics of steel slag aggregates: the f-CaO content, water absorption, and …
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All the listed physical and mechanical properties of the air-cooled blast furnace slag aggregate (ACBFS aggregate) directly depend on its porosity and density [19], [59].The highly porous ACBFS aggregate is less resistant to crushing, water penetration, and freezing-thawing cycles, compared with the low-porous aggregate.
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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 …
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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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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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SSA is widely used in asphalt aggregate, cement, agriculture amendment, railroad, road base, and gabions [9, 16].So far, SSAs have a high proportion of road construction by 67% [].In the current study, the application of steel slag was considered as a substitution of mineral aggregates in the ballast layer.
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The aggregates used in this study were crushed granitic aggregates and steel slag aggregates. A stone crusher plant in the Tumakuru District provided natural aggregates of various sizes. The steel slag aggregates were sourced from a steel plant in Tumakuru. As a binder, Viscosity grade 30 (VG-30) was chosen and obtained from the …
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