— Steel slag the main solid waste in the steel making process is produced more than 120 million tons annually in of the steel slag was stored in the open air which brought potential safety and environmental protection risks such as land occupation and infiltration of heavy metal components into the soil In recent years the
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— Modarres and Bengar investigated hot mix asphalt HMA by replacing conventional limestone powder filler with copper slag powder in different proportions and reported improvement in mechanical properties by increasing the copper slag powder content [14] However to assess field performance of DBM containing copper slag test
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The basic oxygen furnace BOF The BOF process forms part of the primary steel production route which also incorporates the BF process In a BF the iron ore limestone and fuel are continuously supplied through the top section of the furnace while heated air is forced into the lower section Geerdes Toxopeus & Van der fliet 2009 The end
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— The global steel slag market size is projected to grow from $ billion in 2023 to $ billion by 2030 at a CAGR of % during the forecast period HOME current INDUSTRIES Healthcare; which creates potential in the fields of water treatment and land reclamation Industries and governments can address environmental issues
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— Coal gasification slag GS is a potential pozzolanic industrial waste discharged during coal gasification The study aimed to investigate the effect of finely ground GS powder on the fluidity rheology and viscoelasticity properties of cement paste which is essential for utilizing GS as a supplementary cementitious material for building materials
— Zhao Sanyin conducted research on the grinding dynamics of steel slag with different cooling rates and showed that slow cooled steel slag powder has a larger specific surface area than water quenched steel slag powder and that its grindability is better than that of water quenched steel slag However during early grinding the
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— In order to study the flexural performance of the combined structure of steel pipe and steel slag powder ultra high performance concrete UHPC nine round steel pipe beams filled with steel slag powder UHPC of different types were fabricated according to the orthogonal test method with the steel pipe type coarse aggregate content steel
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— In the experimental design the modulus of the water glass was adjusted to and based on experience where the modulus of the water glass is the molar ratio of SiO 2 to Na 2 O The formulation of the alkali activator should be calculated based on the desired activator concentration and modulus taking into account the required
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— Wang et al investigated the effects of substituting carbonated steel slag powder for cement and steel slag powder in concrete at mass ratios of 5% 15% 25% and 10% and 20% of total cementitious materials on the working performance and mechanical properties of concrete After carbonation pretreatment the contents of f MgO and f CaO
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— The fineness of steel slag powder particles is a key factor affecting the hydration and carbonation of active components in steel slag As the particle size of steel slag decreases the absorption rate of CO 2 increases with the increase in specific surface area resulting in a higher overall carbonation amount and improved strength of the
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— Zhao Sanyin conducted research on the grinding dynamics of steel slag with different cooling rates and showed that slow cooled steel slag powder has a larger specific surface area than water quenched steel slag powder and that its grindability is better than that of water quenched steel slag However during early grinding the
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01 Contribution to Resource and Energy Conservation and CO 2 Reduction Through the use of Portland blast furnace slag cement we contribute to reducing the following environmental factors Resource Conservation When Granulated blast furnace slag GBFS is used to replace ordinary Portland cement the consumption of limestone raw materials
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— 1 Introduction Foamed concrete is a kind of porous lightweight material prepared by adding preformed foam into cementitious material paste It has many advantages such as high porosity excellent thermal preservation low self weight and good sound insulation Ramamurthy et al 2009 Hence foamed concrete has been widely
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