Properties of Concrete Manufactured Using Steel Slag

Devi, V. Subathra; Gnanavel, B. K.

doi:10.1016/j.proeng.2014.12.229

Cited by 208 publications

(57 citation statements)

References 6 publications

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“…It also increased the density of mortar. [7] Studied the usage of steel slag in concrete. Results of this investigation indicated that when the steel slag replacement level increases the workability of concrete reduces on comparison of conventional concrete but it improves the all other characteristics of concrete mainly split tensile strength.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Fly Ash and Iron Slag in Concrete - An Experimental Study

Surendra¹,

Karthik²,

K³

2018

IJET

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The cement industry is responsible for about 6% of all CO 2 emissions in the environment and numerous waste products out from the industries which is generating a lots of dumping problems and global warming. The main aim of this present study is to experimentally study the influence of partial replacement of cement with fly ash (FA) and partial replacement of fine aggregate with iron slag (IS) on the mechanical properties of concrete. Totally 10 mixes were prepared with 10, 20 and 30% replacements level of cement with fly ash and fine aggregate is replaced with 10, 20 and 30% by steel slag. The compressive and splitting tensile strength tests were found out after 7, 14, 28 and 7, 28 days age of curing for all the mixes respectively. Results were compared with conventional concrete and the optimum replacement percentage of FA and IS has reported.

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Section: Introductionmentioning

confidence: 99%

Utilization of Fly Ash and Iron Slag in Concrete - An Experimental Study

Surendra¹,

Karthik²,

K³

2018

IJET

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“…One of the potential resources of recycled concrete is steel slag, knowing that steel slag is the most significant solid waste generated by Qatar Steel Company in Qatar [1]. Several researchers have shown that steel slag can be used as an aggregate in structural concrete [2][3][4][5][6]. The use of steel slag in concrete applications has major economic and environmental benefits to Qatar.…”

Section: Introductionmentioning

confidence: 99%

“…However, a number of publications have contradicted this idea [3][4][5][6]. Recently, a number of researchers studied the possibility of using steel slag in concrete mixes as a coarse aggregate to make sustainable concrete [3][4].…”

Section: Introductionmentioning

confidence: 99%

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Behaviour of fibre reinforced concrete using steel slag coarse aggregate produced in Qatar

Alnahhal

2017

MATEC Web Conf.

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Abstract. The state of Qatar suffers from the shortage of natural resources needed for concrete production. Therefore, it is essential to investigate the feasibility of using by-product recycled materials as aggregates to maintain the concrete construction industry. Several types of recyclable materials are currently used in concrete. One of the potential resources of recycled concrete is steel slag. Knowing that Steel slag is the most significant solid waste generated by Qatar Steel Company in Qatar, replacing of natural coarse aggregate with steel slag aggregate will have a significant environmental and economic impact to the state of Qatar. This paper presents the compression and flexural test results of different concrete mixes made of steel slag coarse aggregate combined with a newly developed basalt chopped fibres. The parameters investigated included the volume fraction of the fibre used and the type of coarse aggregates (natural aggregates "Gabbro" and steel slag aggregates). Plain concrete specimens containing natural coarse aggregates and steel slag aggregates with no fibres added were also tested to serve as control. Test results showed that adding the basalt chopped fibres to the concrete mixes enhanced their flexural tensile strengths at different percentages. In addition, the compressive strength of concrete made with steel slag aggregate was higher than that made with natural gabbro aggregate. Test results clearly showed that steel slag aggregates can be used as sustainable and ecofriendly alternative materials in concrete structures.

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“…magnetite Fe3O4) under controlled conditions. When the slag was quenched to the room temperature, the magnetic separation technology was applied to separate the magnetically susceptible compounds and the tailing can be processed to cement (Kourounisa et al, 2007) and concrete (Devia and Gnanavel, 2014).The main objective of this research is to examine the production of H2 gas and the generation of magnetically susceptible compounds in the reaction between molten slag and water vapour, and the crystallisation behaviour of the oxidised slags during controlled cooling. The fundamental knowledge created in this study will be employed in the design and optimization of the novel process for energy and materials recovery in steelmaking slags by reacting molten steelmaking slag with steam.…”

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confidence: 99%

Development of a novel process for energy and materials recovery in steelmaking slags

Bhattacharjee

et al. 2017

Mineral Processing and Extractive Metallurgy

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. (2017) Development of a novel process for energy and materials recovery in steelmaking slags. Mineral Processing and Extractive Metallurgy , 126 (1-2). pp. 94-105. Permanent WRAP URL:http://wrap.warwick.ac.uk/83697 Copyright and reuse: The Warwick Research Archive Portal (WRAP) makes this work by researchers of the University of Warwick available open access under the following conditions. Copyright © and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable the material made available in WRAP has been checked for eligibility before being made available.Copies of full items can be used for personal research or study, educational, or not-for profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP URL' above for details on accessing the published version and note that access may require a subscription. Development of a novel process for energy and materials recovery in steelmaking slagsThis work aims at gathering fundamental knowledge for the development of a novel process for energy (H2 gas) and materials (magnetite Fe3O4) recovery in hotsteelmaking slags by reacting molten steelmaking slag with steam.Thermodynamic simulation was carried out to calculate the accumulated amount of produced H2 gas as a function of the volume of H2O-Ar gas introduced and the precipitated phases of the molten slags during controlled cooling. Laboratory experiments of crystallisation behaviours of molten slags during cooling were visualized in situ through a confocal laser scanning microscope (CSLM), and the cooled slags obtained were characterised by using SEM-EDS and XRD. CCT diagrams for different slags were created showing the slag crystallisation/phase transformation at different cooling rates. The recovery ratio of H2 gas and the maximum potential recovery ratio of iron oxide in the oxidised slags were calculated, which concludes that with increasing the slag basicity from 1.0 to 1.5 and 2.0, the recovery ratio of H2 was found to increase from 12.6% to 23.7% and 22.6%, and the maximum potential recovery ratio of iron oxide was found to increase from 18.3% to 34.4% and 32.8% under the investigated conditions.Keywords: steelmaking slag; H2 gas; spinel; CCT diagram; recovery IntroductionThe steel industry produces large volumes of waste slag with huge sensible heat (at extremely high temperature >1500°C) and considerable amount of metals (Fe, Mn, V, Cr, Semykina et al. (2010aSemykina et al. ( , 2010bSemykina et al. ( , 2011b. This promising method may enable efficient selective recovery of transitional metal oxide from steel...

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Properties of Concrete Manufactured Using Steel Slag

Cited by 208 publications

References 6 publications

Utilization of Fly Ash and Iron Slag in Concrete - An Experimental Study

Utilization of Fly Ash and Iron Slag in Concrete - An Experimental Study

Behaviour of fibre reinforced concrete using steel slag coarse aggregate produced in Qatar

Development of a novel process for energy and materials recovery in steelmaking slags

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