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steel slag in china: treatment, recycling, and management

steel slag in china: treatment, recycling, and management

2018-8-1 · Steel slag is the oxidized material that is generated when lime, dolomite, and other auxiliary materials are added, and oxygen is blown onto the pig iron produced by a blast furnace to remove carbon (C), phosphorus (P), sulfur (S), and other components to produce crude steel in a basic oxygen furnace

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(pdf) an overview of utilization of steel slag

(pdf) an overview of utilization of steel slag

Steel slag is a solid waste from steel production. It can be categorized as carbon steel slag and stainless steel slag according to the type of steel, and as pretreatment slag

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influence of steel slag on mechanical properties and

influence of steel slag on mechanical properties and

2013-10-1 · Steel slag is a potential mineral admixture for concrete. In this paper, the influence of steel slag on the compressive strength, drying shrinkage, permeability to chloride, and carbonation resistance of concrete was investigated under two different conditions: constant W/B and constant 28 days’ compressive strength.The results show that under the condition of constant W/B, increasing the

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review on the innovative uses of steel slag for waste

review on the innovative uses of steel slag for waste

2018-2-5 · Steel slag is a mixture of metal oxides and silicon dioxide and may contain metal sulphide along with metal in the elemental form. Steel slag output is approximately 20% by mass of the crude steel output [].It is found that over 2000 years ago during the times of Roman Empire, slag

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application of steel slag in cement treated aggregate base

application of steel slag in cement treated aggregate base

2020-10-1 · As one of the by-products of steelmaking, steel slag is mainly derived from oxides formed by molten iron and waste slag. According to statistics, in 2018 steel productivity in China exceeds 100 million tons (Guo et al., 2018). Therefore, large amounts of waste slag need to be handled properly

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carbon sequestration of steel slag and carbonation for

carbon sequestration of steel slag and carbonation for

2021-1-1 · Steel slag is a waste residue generated by steelmaking, produces more than 110 million tons each year in China. Compared with the heavily used blast furnace slag and fly ash, the effective utilization rate of steel slag is only about 22% [ 16 ]

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recycling of steel slag aggregate in portland cement

recycling of steel slag aggregate in portland cement

2021-2-1 · Steel slag is a solid industrial byproduct of steelmaking and is a promising alternative aggregate in concrete due to its unique characteristics (Guo et al., 2019). Steel slag is generated during the process of extracting impurities from steel with lime

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inhibition mechanisms of steel slag on the early-age

inhibition mechanisms of steel slag on the early-age

2021-2-1 · As a by-product of steelmaking, steel slag accounts for 15–20 wt% of crude steel production [ 1, 2 ]. Statistics show that nearly 200 million tons of steel slag are produced per year in the world [ 3, 4 ], of which more than 100 million tons are produced in China [ 5 ]. However, only approximately 20% of the steel slag is utilized [ 6, 7 ]

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steel slag - an overview | sciencedirect topics

steel slag - an overview | sciencedirect topics

Steel slag aggregates are fairly angular, roughly cubical pieces with a flat or elongated shape (as shown in Figure 2.13 [49]). They have a rough vesicular nature with many non-interconnected cells, which gives a greater surface area than smoother aggregates of equal volume. This feature provides an excellent bond with concrete binder

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types of iron and steel slag : nippon slag association

types of iron and steel slag : nippon slag association

2020-10-18 · Steelmaking slag. This slag is a byproduct from steelmaking processes in which the components of pig iron and steel-scrap are modified in order to produce steel that is so highly valued for excellent toughness and workability. Steelmaking slag consists of converter slag that is generated by converter and electric arc furnace slag that is

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a review of steel slag usage in construction industry for

a review of steel slag usage in construction industry for

2016-1-20 · Steel slag cement (SSC) had been developed as a new kind of cement in China. It is a product of a ground mixture of SS, BFS, Portland cement clinker, gypsum, and admixture. Cement-containing SS has much better corrosion resistance than conventional Portland cement

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study of controlled leaching process of steel slag in

study of controlled leaching process of steel slag in

2021-3-1 · The steel slag was sieved before the test in order to eliminate the presence of fines around the steel slag aggregate, which would be the closest procedure to the leaching in the Soxhlet extractor. The result of the expansion test is shown in Fig. 10 and a value of 1.4% was observed. Download : Download high-res image (45KB)

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