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basic oxygen furnace slag usage in concrete works

Use of basic oxygen furnace slag fines in the production ...

Apr 10, 2018  1. Introduction. Some steel slags, such as basic oxygen furnace (BOF) slag and electric arc furnace reducing slag, have properties of volume expansion and high alkalinity which are major issues when aiming to recycle the steel slag in construction .Solving the volume expansion problem of steel slags is vital for slag recycling and reuse , , , , , .In Taiwan, more than 1.5 million tons of BOF ...

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Applicability of Basic Oxygen Furnace Slag as a Concrete ...

However, soundness of basic oxygen furnace slag in concrete appears to largely depend upon the mineralogical and chemical compositions of the slag. Several experiments concerning workability, compressive strength and dimensional stability of concrete made with basic oxygen furnace slag were conducted for investigating the possibility of the use ...

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Recycling of Basic Oxygen Furnace Slag as a Raw Material ...

Jul 22, 2020  Abstract: The purpose of this study was to recycle basic oxygen furnace (BOF) slag in the production of autoclaved aerated concrete (AAC), and to examine the influence on the properties of AAC products. The magnetic substances in the BOF slag accounted for about 15 wt.% and the magnetic proportion increased as the particle size decreased.

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Use of BOF slag and blast furnace dust in asphalt concrete ...

use of Basic Oxygen Furnace slag (BOF) as coarse aggregate and studying the alternative of using Blast Furnace Dust (BFD) as a fine aggregate; to manufacture asphalt hot mixes for pavements as an alternative to mitigate the environmental problems derived from the accumulation of this steel waste

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Basic oxygen furnace slag: Review of current and potential ...

Apr 01, 2020  1.4.2. 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 products are usually molten metal and slag ...

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Concrete with Steel Furnace Slag and Fractionated ...

pavement, RAP, steel furnace slag, SFS, electric arc furnace slag, EAF, basic oxygen furnace slag, BOF, expansion, autoclave, free lime, free CaO, ethylene glycol test, concrete durability, concrete fracture 18. Distribution Statement No restrictions. This document is available to the public through the National Technical Information Service,

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Utilization of Basic Oxygen Furnace Slag in Geopolymeric ...

Basic oxygen furnace slag (BOFs) is difficult to reutilize because it contains excessive free lime, and thus causes serious expansion. For this reason, how to reuse BOF slag has turned out to be an imperative issue in order to meet the concept of a circular economy. The key intention of this research work is to develop a new way to reutilize BOF slag, which due to its high emissivity in the 8 ...

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Furnace Slag Fines - Virginia Tech

CaO content ranges for two types of SFS, which include basic oxygen furnace (BOF) slag and electric arc furnace (EAF) slag, are 1–10% and 0–4%, respectively [19]. This expansion can be extensive and result in structural failures (e.g., failure due to swelling, expansive cracking, loss in strength, etc.) [26–28].

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Concrete with Steel Furnace Slag and Fractionated ...

pavement, RAP, steel furnace slag, SFS, electric arc furnace slag, EAF, basic oxygen furnace slag, BOF, expansion, autoclave, free lime, free CaO, ethylene glycol test, concrete durability, concrete fracture 18. Distribution Statement No restrictions. This document is available to the public through the National Technical Information Service,

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Basic oxygen furnace slag - Euroslag

May 04, 2021  Basic oxygen furnace slag. Basic oxygen furnace slag - BOS (also called LD-converter slag)is formed during the conversion of hot metal from the blast furnace into steel in a basic oxygen furnace.In this process the hot metal is treated by blowing oxygen to remove carbon and other elements that have a high affinity to oxygen.

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Recycling of Basic Oxygen Furnace Slag as a Raw Material ...

Jul 22, 2020  Abstract: The purpose of this study was to recycle basic oxygen furnace (BOF) slag in the production of autoclaved aerated concrete (AAC), and to examine the influence on the properties of AAC products. The magnetic substances in the BOF slag accounted for about 15 wt.% and the magnetic proportion increased as the particle size decreased.

More

Use of BOF slag and blast furnace dust in asphalt concrete ...

use of Basic Oxygen Furnace slag (BOF) as coarse aggregate and studying the alternative of using Blast Furnace Dust (BFD) as a fine aggregate; to manufacture asphalt hot mixes for pavements as an alternative to mitigate the environmental problems derived from the accumulation of this steel waste

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PhD Position: Novel concretes based on Basic Oxygen ...

One solution to this problem is the use of currently underutilized industrial side products in OPC-free binders. Such a binder based on Basic Oxygen Furnace (BOF) slag was recently developed at the Building Materials group, and it will be the goal of this PhD to investigate the behavior of concrete

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Concrete with Steel Furnace Slag and Fractionated ...

pavement, RAP, steel furnace slag, SFS, electric arc furnace slag, EAF, basic oxygen furnace slag, BOF, expansion, autoclave, free lime, free CaO, ethylene glycol test, concrete durability, concrete fracture 18. Distribution Statement No restrictions. This document is available to the public through the National Technical Information Service,

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Concrete with Steel Furnace Slag and Fractionated ...

pavement, RAP, steel furnace slag, SFS, electric arc furnace slag, EAF, basic oxygen furnace slag, BOF, expansion, autoclave, free lime, free CaO, ethylene glycol test, concrete durability, concrete fracture 18. Distribution Statement No restrictions. This document is available to the public through the National Technical Information Service,

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Furnace Slag Fines - Virginia Tech

CaO content ranges for two types of SFS, which include basic oxygen furnace (BOF) slag and electric arc furnace (EAF) slag, are 1–10% and 0–4%, respectively [19]. This expansion can be extensive and result in structural failures (e.g., failure due to swelling, expansive cracking, loss in strength, etc.) [26–28].

More

(PDF) Stabilization of basic oxygen furnace slag by hot ...

ConclusionsThis work has investigated the hot-stage carbonation of Basic Oxygen Furnace (BOF) steel slag, with the objective of converting its high free lime content (10-20 wt%) to calcium carbonate and stabilizing its negative properties (high basicity and heavy

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233R-17: Guide to the Use of Slag Cement in Concrete and ...

The use of slag cement as a cementitious material dates back to 1774, when a mortar was made using slag cement in combination with slaked lime (Mather 1957). In 1862, a granulation process was proposed to facilitate removal and handling of iron blast-furnace slag leaving the blast furnace. The use of granulation produced glassy material that played

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Industrial uses of slag—The use and re-use of iron and ...

from the hot-metal product of the blast furnace prior to refining in a basic oxygen furnace has reduced tap-to-tap time, lowered cost, lowered slag volume and produced steel of much higher quality. The use of vacuum degassing subsequent to decarburization in the basic oxygen furnace has resulted in reduced hydrogen and nitrogen contents and

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Ohio Department of Transportation

E. Steel Slag Aggregate. Provide open-hearth (OH), basic oxygen furnace (BOF), and electric arc furnace (EAF) steel slag aggregate (known as steel slag) according to the following requirements when 703.04 aggregate for asphalt concrete base or 703.05 aggregate for

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PhD Position: Novel concretes based on Basic Oxygen ...

Apr 15, 2021  The cement and concrete industry is consuming large amounts of natural resources. One solution to this problem is the use of currently underutilized industrial side products in OPC-free binders. Such a binder based on Basic Oxygen Furnace (BOF) slag was recently developed at the Building Materials group, and it will be the goal of this PhD to ...

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Comparative Strength Analysis of Concrete by Partial ...

35% replacement levels of Basic oxygen furnace slag respectively adding Basic oxygen furnace slag to the concrete. From the obtained values of density Basic Oxygen furnace slag based concrete gives greater density than controlled M-25 grade of concrete

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(PDF) Steel Slag Aggregate For Asphalt Pavement

Aug 09, 2015  by their furnace type: basic oxygen furnace (BOF) and electric a rc furnace (EAF). The slag properties are similar but variations occur between di fferent products even within the same t ype

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DURABILITY PROPERTIES OF STEEL SLAG AS COARSE

normal concrete and has been used in the construction works. S.No 1.2 Steel Slag Slag is a by-product generated during manufacturing of pig iron and steel. Primarily, the slag consists of calcium, magnesium, manganese and aluminum silicates in various combinations. Basic oxygen furnace slag

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Use of BOF slag and blast furnace dust in asphalt concrete ...

use of Basic Oxygen Furnace slag (BOF) as coarse aggregate and studying the alternative of using Blast Furnace Dust (BFD) as a fine aggregate; to manufacture asphalt hot mixes for pavements as an alternative to mitigate the environmental problems derived from the accumulation of this steel waste

More

Concrete Produced by Steel‐Making Slag (Basic Oxygen ...

Oct 26, 2009  A steel‐making slag (basic oxygen furnace) obtained from the Kardemir Steelworks was modified to be used as a clinker additive in the cement industry. This study confirmed that the compressive strength values of concretes produced by addition of these steel‐making slags up to 30 mass% were within the values of Grade‐325 and Grade‐425 ...

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Comparative Strength Analysis of Concrete by Partial ...

35% replacement levels of Basic oxygen furnace slag respectively adding Basic oxygen furnace slag to the concrete. From the obtained values of density Basic Oxygen furnace slag based concrete gives greater density than controlled M-25 grade of concrete

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"Broader Use of Steel Slag Aggregates in Concrete" by ...

Steel slag is an industrial byproduct obtained from the steel manufacturing industry. It is produced in large quantities during the steel-making operations which utilize Electric Arc Furnaces (EAF). Steel slag can also be produced by smelting iron ore in the Basic Oxygen Furnace (BOF). Steel slag can be used in the construction industry as aggregates in concrete by replacing natural aggregates.

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Furnace Slag Fines - Virginia Tech

CaO content ranges for two types of SFS, which include basic oxygen furnace (BOF) slag and electric arc furnace (EAF) slag, are 1–10% and 0–4%, respectively [19]. This expansion can be extensive and result in structural failures (e.g., failure due to swelling, expansive cracking, loss in strength, etc.) [26–28].

More

233R-17: Guide to the Use of Slag Cement in Concrete and ...

The use of slag cement as a cementitious material dates back to 1774, when a mortar was made using slag cement in combination with slaked lime (Mather 1957). In 1862, a granulation process was proposed to facilitate removal and handling of iron blast-furnace slag leaving the blast furnace. The use of granulation produced glassy material that played

More

(PDF) Stabilization of basic oxygen furnace slag by hot ...

ConclusionsThis work has investigated the hot-stage carbonation of Basic Oxygen Furnace (BOF) steel slag, with the objective of converting its high free lime content (10-20 wt%) to calcium carbonate and stabilizing its negative properties (high basicity and heavy

More

Industrial uses of slag—The use and re-use of iron and ...

from the hot-metal product of the blast furnace prior to refining in a basic oxygen furnace has reduced tap-to-tap time, lowered cost, lowered slag volume and produced steel of much higher quality. The use of vacuum degassing subsequent to decarburization in the basic oxygen furnace has resulted in reduced hydrogen and nitrogen contents and

More

Use of Steel Slag in Subgrade Applications

for the basic-oxygen-furnace steelmaking process. In the BOF process, molten iron is charged into a basic-oxygen furnace together with steel scraps and fluxing agents (lime or dolomite) to produce steel. The steel slag that is a by-product of the BOF steelmaking process is known as basic-oxygen-furnace slag. In the EAF process, recycled steel

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703 AGGREGATE - Pages

703.15 Open-Hearth, Electric Arc Furnace, and Basic Oxygen Furnace Steel Slag Aggregate Used for Items 410, 411, and 617. When using surface applications OH, EAF, and BOF slag, ensure that the slag meets the aging and stockpiling, deleterious substances, and crushing requirements of 703.14.

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DURABILITY PROPERTIES OF STEEL SLAG AS COARSE

normal concrete and has been used in the construction works. S.No 1.2 Steel Slag Slag is a by-product generated during manufacturing of pig iron and steel. Primarily, the slag consists of calcium, magnesium, manganese and aluminum silicates in various combinations. Basic oxygen furnace slag

More

Basic Oxygen Furnace (BOF) [SubsTech]

May 31, 2012  Dr. Dmitri Kopeliovich Basic Oxygen Furnace (BOF) is a steel making furnace, in which molten pig iron and steel scrap convert into steel due to oxidizing action of oxygen blown into the melt under a basic slag.. The Basic Oxygen Process (Basic Oxygen Furnace, Basic Oxygen Steelmaking, Basic Oxygen Converter) is the most powerful and effective steel making method.

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Basic Oxygen Furnace Processing Thermo-Calc Software

The Process Metallurgy Module also allows you to calculate an optimum combination of amount of oxygen and amount of slag required to remove both C and P from the liquid steel for a given hot metal and slag composition. In the equilibrium example, about 5500 Nm 3 of oxygen needs to be blown and about 2.7 t of high CaO slag former must be added.

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Sustainable Use of Steel Industry Slag (SIS) for Concrete ...

Palod, G.D. et al. (2017) [4] has investigated the potential uses of SS in concrete as cementitious material. This study showed that high replacement of Basic Oxygen Furnace (BOS) steel slag along with GGBS has a very encouraging outcome.

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