Steelmaking Slag Recycling as Raw Material and Its
By adding slag with 71% amorphous phase, the cement presented 29 and 40.4 MPa of compressive strength after 7 and 28 days, respectively; while with the addition of slag with 53% amorphous phase ...
Evaluate and Predict the Resist Electric Current and
Concrete is a highly adaptable composite material that is widely used in construction. Steelmaking produces byproducts such as ferrous steel slag and Ground Granulated Blast Furnaces (GGBS). When molten steel is separated from impurities in steelmaking furnaces, it forms. Steel slag recovery is environmentally friendly since it …
Blended Cement Mixed with Basic Oxygen Steelmaking Slag …
Portland cement tends to exhibit negative environmental impacts; thus, it is required to find measures that will improve its green credentials. In this study, we report a blended Portland slag cement as an alternative environmentally-friendly building material in order to reduce the total carbon footprint resulted from the production of the ordinary …
Metals | Free Full-Text | Challenges and Outlines …
The production capacity of various steelmaking processes in India is shown in Table 1. ... Ironmaking slag such as BF or COREX slag is used as a raw material for slag cement making and for producing …
Measures to Decrease and Utilize Steelmaking Slag
Steelmaking slag is artificially produced to remove, among others, the phosphorus from molten steel; approximately 120 kg of slag is formed per ton of steel. At present, steelmaking slag is mostly used for road construction and civil engineering materials. However, the slag cannot be sold at a high price and, in advanced countries, …
Development of large steelmaking slag blocks using a new …
Porous slag blocks (1 m3) were produced by carbonation of steelmaking slag over a period of 12 days. The compressive strength and bulk density of the blocks were 18·4 ± 3·3 MPa and 2·4 g/cm3, respectively. To make a large block, the optimum amount of water and bulk density of the compact were 5·3–6·3 mass% and 2·30–2·37 …
Effect of Steel Slag and Portland Cement in the Rate of …
This paper presents an experimental study of the influence of steel basic oxygen slag (BOS) and ordinary portland cement ... 9th Int. Congress on the Chemistry of Cement, New Delhi, India, 291–297. Google Scholar ... P. E., Papadimitriou, G. D., and Tsibouki, Z. (2007). "Properties and hydration of blended cements with steelmaking slag ...
The Use of Steelmaking Slag in Cement manufacturing
The Use of Steelmaking Slag in Cement manufacturing. "An Environmental Solution with Commercial Value". Short-Term Supply / Demand Imbalance. Exhibit 7. Cement Industry Greenhouse Gas Emissions CO Equivalents. 2. Source: US Environmental Protection Agency, The US Inventory of Greenhouse Gas Emissions and Sinks (2005), April 2007 …
cement steelmaking slag india
(PDF) Steel Slag Utilization — Overview in Indian ... India manufactured 270 MT of cement in 2013-2014 and by the year 2017 cement production can be expected 400 MT while for making one tonne of cement about 1.5 T lime stone is required and with about 10% replacement of limestone with BF slag creates a market for 60 MT BF slag /year, …
Predicting the compressive strength of steelmaking slag concrete …
Steelmaking slag has been extensively studied as aggregate for cement-based composites. Because of the distinct properties of this residue, traditional mix design methods are not suitable to determine its target compressive strength, which hinders research studies and compromises its use on a large scale.
Co-treatment of Waste From Steelmaking …
The iron and steel industry is an energy-intensive sector, and large amounts of waste/ by-products are generated during the steelmaking process, such as CO2, metallurgical slag, and wastewater. Enhancing the …
Synergistic mechanisms of steelmaking slag coupled with carbide slag
Mineralization is an important means for emission reduction and utilization of CO 2.Industrial calcium-based by-products such as steelmaking slag and carbide slag are often used as inexpensive mineralizers for CO 2.In this investigation, the pH was tested on-line during the mineralization process of CO 2 and steelmaking slag, carbide slag and …
Parametric Study of Steel Slag Powder as Cementitious …
This paper explores the use of partially replacing cement with locally available steel slag for making of cement mortar. The effects of steel slag powder on the normal consistency water requirement, setting times, compressive strength were studied. The results showed that the preferred content of steel slag powder as replacement of …
Development of newer composite cement through mechano-chemical
Fig. 1 illustrates the generation process of LD slag. Steelmaking process by Linz–Donawitz (LD) converter or basic oxygen furnace (BOF) involves blowing of 99% pure oxygen at supersonic speed for 25 min at a temperature of 1600 °C – 1700 °C. ... India. Ordinary Portland cement (OPC) of 43 grade confirming to IS 269–2016 [36] was used ...
Processing and Reusing Technologies for Steelmaking …
3.1 Cooling of the steelmaking slag As steelmaking slag is formed, it is in a molten or red-hot state at a temperature of 1,300-1,700°C. Therefore, steelmaking slag must be immediately subjected to the cooling process upon removal. Ordinarily, this is performed in a cooling yard by air cooling and moderate water sprinkling.
Development of a Calcium Aluminate Cement from steelmaking slag …
This study investigated the use of 10 (M1), 17 (M2) and 27 wt.% (M3) electric arc furnace steel slag (EAFS) as a raw material in the production of calcium ferroaluminate belite cement clinker ...
Calcium leaching from waste steelmaking slag
The slag produced in the highest volumes is blast furnace slag, which is generally fully utilised as both an aggregate for road construction and as an additive in Portland cement (Hiltunen and Hiltunen, 2004). The second most produced slag is basic oxygen steelmaking (BOS) slag from the Linz-Donawitz process.
Environmental benefit assessment of steel slag …
Steel slag can replace cement as a supplementary cementitious material ( SCM ), or even be utilized alone as a pure binder material with the aid of carbonation …
Strength and Durability of Concrete Made with Electric Steelmaking Slag
Whilst, Polanco et al. [15] prepared concrete structures using two types of steelmaking slags, namely electric-arc furnace slag (EAFS) and ladle-furnace slag (LFS). Specimens were evaluated for ...
Properties and hydration of blended cements with steelmaking slag
This study investigated the effect of chloride ingress on the hydration mechanism and strength development of plain and slag blended cements. The slag blends were prepared by combining two slags with a CEM I 52.5R-type cement at 30%wt. replacement, while a CEM I 42.5R-type cement was selected as the plain cement.
Direct mineral carbonation of steelmaking slag for CO
Steelmaking slag (SS) is one of the major by-products obtained from steel plants. In India, steel production has grown with a rate of 10 % from the year 2001 to 2011. The annual steel production is about 72.2 MT for the year 2011 and the corresponding slag generation is 18 MT.
(PDF) Effects of Steelmaking Slag and Moisture …
The substitution of cement to steelmaking slag may also decrease the amount of carbon dioxide (CO 2) generated in concrete and construction fields. The production of one ton of ordinary Po rtland .
Steel Slag Utilization — Overview in Indian Perspective.
The blast furnace slag in India is used mainly by th e cement manufacturers to pr oduce slag cement (Das et al., 2007; ht tp://planningco mmission.gov.in - accessed on 25 June 2016). India ...
An Overview of Utilization of Blast Furnace and Steelmaking Slag …
It has been reported, that 24 MT of a blast furnace is producing annually and expected to 45-50 MT per year of blast furnace slag generation by 2030 in india [3] and approximately300-350 kg of ...
Utilization of Steel Slag as an Eco-Friendly Material in Concrete for
3 [email protected], 4 [email protected]. Abstract. Steel slag, is one type of solid waste collected through steel smelting process, it can be utilized in the manufacture of concrete as a fine ...
Blended Cement Mixed with Basic Oxygen Steelmaking Slag …
The ordinary Portland cement type I enhanced by basic oxygen steelmaking slag (BOF) is produced and casted into cubic and beam-like samples for the compressive and three-point bending tests, and ...
Utilization of Linz–Donawitz slag from steel industry for …
Use of LD slag for cement manufacturing in India is minimal, whereas China is producing LD slag-based cement for ... (1997) Enhancement of the cementitious properties of steelmaking slag. Can Metall Q 36:315–331. Google Scholar Monshi A, Asgarani MK (1999) Producing Portland cement from iron and steel slags and limestone. …
Green Castable Using Steelmaking Slags: A Sustainable
The castable was prepared using primary steelmaking slag as the aggregate and developed slag cement as the binder. CA and CA 2 were formed as the primary phases in the slag cement, with Gehlenite, C 12 A 7, and 'Q' phases as the secondary phases. Slag cement with 60% slag content exhibited superior strength as …
Properties and hydration of blended cements with steelmaking slag
The present research study investigates the properties and hydration of blended cements with steelmaking slag, a by-product of the conversion process of iron to steel. For this purpose, a reference sample and three cements containing up to 45% w/w steel slag were tested. The steel slag fraction used was the "0–5 mm", due to its high ...
Characterization and Sustainable Utilization of Steel …
First Online: 02 April 2022. 196 Accesses. Abstract. The Indian steel industry had paramount importance and complex challenges for sustainable solid waste management …
