MENU
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 …
WhatsApp: +86 18221755073
India is the second-largest steel producer in the world with annual production at 111 million tonnes (Mt) in 2019 [1].For the typical raw material used in the steel plants in India, one tonne of steel production generates up to 1.2 tonnes of solid wastes [2].A significant share of this solid waste is of slag, and it was estimated that 53 Mt of slag was generated in India in …
WhatsApp: +86 18221755073
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
WhatsApp: +86 18221755073
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
WhatsApp: +86 18221755073
The steel slag aggregate, presently produced by a steel plant in Saudi Arabia is utilized in asphalt concrete. The steel slag is produced during the direct reduction of iron in an electric arc furnace. ... It disintegrates to smaller size fractions, due to rapid cooling, thereby necessitating minimal crushing to produce aggregates of the ...
WhatsApp: +86 18221755073
Steel slag can be processed into a coarse or fine aggregate material for use in dense- and open-graded hot mix asphalt concrete pavements, (1,2,3) and in cold mix or …
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
The pile of steel slag occupies a huge area of arable land, and causes environmental pollution; moreover, 7%-15% steel can be recycled from steel slag. 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 ...
WhatsApp: +86 18221755073
Slag aggregates are obtained by crushing of smelter slag or by special treatment of fire-liquid slag melt (molten slag aggregates). Currently there are many types of concrete that are developed …
WhatsApp: +86 18221755073
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, …
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
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. ...
WhatsApp: +86 18221755073
The poor specification stability of steel slag aggregate is mainly caused by the process of a single crushing and screening equipment. The steel slags are a byproduct in the process of steel making and have complex and changeable composition, which result that the steel slags in different batches and different parts have different damage resistance capacity.
WhatsApp: +86 18221755073
construction. A new method of steel slag aggregate processing is proposed to obtain the high quality steel slag aggregate with different specifications. Besides, the performances of the obtained ...
WhatsApp: +86 18221755073
When crushed and sized properly, slag can be sold and used as valuable material in many different ways, for example, as aggregates. However, since slag usually contains uncrushable objects, it is typically considered a challenging feed …
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
Studies indicate that steel slag formed by crushing and proper process has a similar shape to the natural aggregates and better mechanical properties, so ... Replacement of steel slag as an aggregate contributes to increasing dynamic stability by SS-6 increasing by 34% compared to BA-6 and SS increasing by 43% compared to BA. It shows that ...
WhatsApp: +86 18221755073
Typically, BOFS has high alkalinity [33], [34], low crushing values, a porous structure, and high density because FeO is relatively high [35]. BOFS powder has been widely used in the production of cement clinker. ... Moreover, when the steel slag aggregate with added EDTA was used in concrete casting, the compressive strength was 5.2–13.3 MPa ...
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
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.
WhatsApp: +86 18221755073
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.
WhatsApp: +86 18221755073
In this experimental program, Table 1 provides specific information about the chemical oxide composition of the steel slag from Bhilai Steel Plant (BSP) in Bhilai, Chhattisgarh, India commonly called basic oxygen furnace (BOF) slag or linz-donawitz slag (LD slag) or steel slag (from hereafter), serving as the coarse aggregate with size varied ...
WhatsApp: +86 18221755073
Maslehuddin et al. [27] presented a comparative study of steel slag aggregate and crushed limestone concretes; where, only part of the coarse aggregates is replaced by slag aggregates. The study concluded that the compressive strength of steel slag aggregate concrete is marginally better than that of crushed limestone aggregate concrete.
WhatsApp: +86 18221755073
Crushing value of the carbonated steel slag aggregates was determined referring to the Chinese National Standard GB/T 14,685–2011 [36]. 3 kg of steel slag aggregates were filled in a cylinder with a diameter of 152 mm. Afterwards, the pressure was loaded on the aggregates in the cylinder with a loading rate of 1 kN/s until it reached 200 kN ...
WhatsApp: +86 18221755073
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...
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
Compared with basalt and limestone aggregates, steel slag shows higher density, water absorption, adhesion to asphalt, polishing value, fine particle content (volume percentage), immersion expansion rate, and has a smaller crushing value; the utilization of steel slag as an aggregate in asphalt mixtures is practicable due to its excellent ...
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073Copyright © 2024 Sofol Industry & Technology Group Co., Ltd.
المنتجات
محلول
حول الولايات المتحدة
اتصل بنا