Industrial by products and waste materials are being generated by various factories including the steel industry According to Das et al [5] 2 4 tons of wastes are produced during the manufacture of every single tonne of a large amount of the wastes from the steel industry are used in other applications there is still about 35% unused slag dumped
In the past wetting and drying process of steel slag through various cycles was a method to neutralize the influence of free lime in steel slag for use in construction sector In recent years it has been found that the carbonation treatment on steel slag can effectively solve the problem of poor volume stability [13] [14]
Recycling steel slag as fertiliser substitute in agriculture aligns well with the UN sustainable development goals which call for increased efforts from the states to mitigate climate change and increase resource efficiency by encouraging a circular economy Hermassi et al 2020; Mayer et al 2022 Slag is a by product of steel manufacture and accounts for 15 20 %
The drying shrinkage of the concrete increased with the content of steel slag aggregates The abrasion resistance of the slag concrete was found to be better than the abrasion resistance of conventional concrete Deterioration of slag concrete was not observed due to normal water curing up to 90 days
Steel slag gravel possesses advantageous properties such as high strength hardness and stability and it can be used as a substitute for traditional gravel in road backfilling As an alkaline slag as it avoids a separate drying process Zhu et al 2015 When converting metallurgical slags into catalysts using co precipitation the
4 Liaoxi Heavy Machinery Manufacturing Established in March 2005 with a registered capital of million yuan The company has 683 employees and covers an area of 390 mu
As a kind of industrial waste in steel manufacturing steel slag accounts for about 12 15% of steel output [1] [2] China s crude steel output reached billion tons in 2021 with steel slag produced exceeding 120 million tons [3] At present the amount of steel slag stacked in China has reached 1 billion tons which will cause serious waste of resources and pollution to
Steel slag contains common oxides such as CaO FeO/Fe 2 O 3 Al 2 O 3 SiO 2 MgO and MnO [4] with quantities varying depending on the treatment method used during steelmaking [5] Its mineralogical compositions mainly include tetracalcium aluminoferrite C 4 AF tricalcium silicate C 3 S dicalcium silicate C 2 S and the RO phase a solid solution of
Enhancing mechanical properties of carbonated steel slag through surfactant assisted CaCO 3 crystallization Author links open overlay panel Yizheng Zhang a Genshen Li a Saisai Zhang a The mixed samples were dried in a vacuum drying oven for 24 h to ensure the removal of moisture Subsequently 20 g of the carbonated sample was weighed
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
The potential of steel slag asphalt mixtures SSAM to resist moisture damage has been a hot topic in current investigations In general the moisture damage resistance of SSAM can currently be investigated in terms of two aspects the ITZ between asphalt and steel slag [12] and the air void evolutionary behavior identified by computed tomography CT
Electric arc furnace steel slag EAF slag and basic oxygen furnace steel slag BOF slag were used as filter substrate in horizontal subsurface flow laboratory scale filters designed to remove phosphorus P from a synthetic solution ∼10 mg P/L The main objective of this study was to evaluate the influence of various parameters including slag type slag size
Performance of carbonated steel slag stabilized soils after drying wetting cycles The resistance to D W cycles is an essential factor in evaluating the engineering performance of stabilized soils Fig 6 displays the UCS of AS Q S C1 and AS Q S C2 after D W cycles Accordingly the UCS of AS Q S C1 was generally lower than that of AS Q S C2
A large amount of industrial solid waste is generated in the metallurgical industry every year The lack of proper treatment of these industrial solid wastes caused serious environmental pollution and waste of resources Yu and Du 2023 Qiu et al 2022 The industrial solid wastes included fly ash coal gangue and steel slag SS which contained large amounts
Indirect carbonation of steel slag is an effective CO 2 sequestration strategy which is of great significance for reducing CO 2 emissions of the iron and steel industry and achieving its green and low carbon development This paper proposed a process for high temperature modification followed by indirect carbonation of steel slag which enabled the
After further drying and grinding the granulated blast furnace slag becomes a fine powder which is called ground GBFS The ground GBFS has a maximum particle diameter less than 100 μm Steel slag is a by product of steel production in the basic oxygen furnace or electric arc furnace process Yildirim and Prezzi 2011 Steel slag is
Until now relevant scholars have done a lot of works on the environmental assessment of various recycling technologies of steel slag For instance Qian et al Qian et al 2021 adopt Bacillus Mucilaginosus BM to absorb carbon dioxide to promote the carbonization of dead burned lime and with traditional cement Carbonized steel slag as a
Cement based materials have favorable capacity of solid waste and CO 2 disposal In this study a synergistic CO 2 treatment including CO 2 mineralization of steel slag admixture and carbonation curing of cement paste was proposed The influence of synergistic CO 2 treatment on pozzolanic activity of steel slag CO 2 sequestration and compressive strength
NIPPON STEEL TECHNICAL REPORT No 125 DECEmbER 2020 55 Technology UDC 666 763 / 764 The tundish usage cycle after the constructions and drying of the permanent lining refractory and the wear lining refractory generally wherein the residues of steel and slag in the tundish are removed in a hot state on line and the exchanges of the
Steel Stainless Steel Transport Package Standard Package Trademark jiutian Origin Henan China HS Code 8419399090 Production Capacity Package Gross Weight Product Description Product Description Industrial Slag Dryer Introduction Slag dryer is widely used in building materials metallurgy mineral processing
Slag processing and utilization require a mineral slag dryer direct heat transfer drum dryer and indirect heat transfer drum dryer Slag is also a major industrial waste produced in steel making operations It can be made into cement glass and brick It can also be used to make agricultural fertilizer or extract useful materials
Steel slag is the main solid waste produced in the steelmaking process At present about 190 290 million tonnes of steel slag are discharged globally each year Geological Survey 2020 but its subsequent utilization is still very low Yi et al 2012; Zhao et al 2017 and is becoming a vital topic around the application of steel slag in cement
