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The potential use of the slag material coud be as construction material but also as a potential source of some rare elements. Keywords: slag, melilite, fayalite, calcium disilicate, native iron, wüstite, magnetite, troilite, oldhamite. 1. INTRODUCTION The Galaţi blastfurnace, the largest in Romania, was built in the 1960s.
Reactive magnesia (MgO)-activated ground granulated blastfurnace slag (GGBS), with fixed GGBS dosages but varying MgO/GGBS ratios, was used for stabilization of two soils and compared with brucite (Mg(OH)2)-activated GGBS and hydrated lime (Ca(OH)2)-activated GGBS. A range of tests, including unconfined compressive strength testing, X …
This experimental study investigated the use of combined industry by-products, carbide sludge (CS) and ground granulated blast-furnace slag (GGBS), to replace ordinary Portland cement (OPC) for the stabilization of clay slurry, aiming to increase the stabilization efficacy, reduce the cost, and mitigate the environmental …
The use of CEM III/B blastfurnace slag cements and fly-ash in the concrete mix design are often recommended for improving the acid resistance and representing the actual best state of art in the construction of cooling towers of coal-fired power stations exposed to a high risk of sulfuric acid attack [13,14,15].
Ground granulated blastfurnace slag (GGBS), a by-product of the steel industry, is a suitable and prevalent slag for ASS. Nevertheless, AAS suffers from durability problems, e.g. drying shrinkage and carbonation (Shi et al., 2006). Yet, these would not be concerns for soft clay stabilisation applications, since the stabilised clay is usually ...
Ground granulated blast furnace slag (GGBS) is a glassy by-product of hot metal production and has been used in blended cements for over 140 years [1,2,3,4].GGBS-containing binders and concretes have a lower CO 2 footprint, show a decreased heat development and an increased physical and chemical resistance [1, 3, 5,6,7,8].At high …
AbstractThe influence of low curing temperatures (5, 10 and 15 ± 2 °C) on the strength and durability properties of ground granulated blastfurnace slag (GGBS) and ground granulated Corex slag (GGCS) concretes was studied. A standard curing temperature of 23 ± 2 °C) was also used for comparative purposes. Test specimens were …
The global Ground Granulated Blast-Furnace Slag (GGBFS) market, which achieved a volume of 405.45 million tonnes in 2022, is poised for robust growth with a projected Compound Annual Growth Rate ...
12.1. Introduction. Blast furnace slag (BFS) which is defined "as the non-metallic product consisting essentially of silicates and alumina silicates of calcium and other bases, that is developed in a molten condition simultaneously with iron in a blast furnace" by ASTM C 125-16 (2016) has been widely used in construction industry for more than …
This research used OPC and granulated blast-furnace slag (GBFS). Table 1 shows their chemical compositions, which were evaluated by X-ray fluorescence, using a MagixPro PW-2440 equipment (PANalytical, USA), and the average particle sizes (D [4,3]), which were determined by laser granulometry using a Mastersizer 2000 instrument.OPC …
Introduction. Metallurgical industry produces slag as by-products. Iron blast furnace slag is the major non-metallic product consisting of silicates and aluminosilicates of calcium. …
GGBS is an acronym for Ground Granulated Blastfurnace Slag, a by-product from the manufacture of Iron. Ecocem GGBS is used in combination with Portland cement to produce superior longer lasting concrete. A replacement rate of up to 70% is permitted by I.S EN 206-1. Ecocem GGBS is an industrial by-product that is diverted from landfill and up ...
For blastfurnace cements (slag replacement >20%), the filler effect cannot compensate for the dilution effect caused by the large incorporation of slow reactive particles of slag [1]. Then, Wn ( Fig. 2 b and c) is less for both blastfurnace cements and all w/b used for pastes cured at 20 °C and consequently the compressive strength …
Microstructural and mechanical properties of marine soft clay stabilized by lime-activated ground granulated blastfurnace slag @article{Yi2015MicrostructuralAM, title={Microstructural and mechanical properties of marine soft clay stabilized by lime-activated ground granulated blastfurnace slag}, author={Yaolin Yi and Liyang Gu and …
Cementitious. Ground Granulated Blast-Furnace Slag. Ground-granulated blast-furnace slag (GGBFS) is a by-product of iron and steel-making obtained by quenching molten iron slag from a blast furnace in water or steam. Used to increase the strength of concrete and used to improve workability of fresh concrete and reduce water demand, shrinkage ...
Ground granulated blastfurnace slag (GGBS) is a by-product of the steel industry. During the production of iron, a composite of iron-ore, coke, and limestone is fed into the blastfurnace, whereby iron-ore is reduced to iron and separated from the remaining slag. The slag is tapped-off and cooled rapidly to retain its cementitious …
This work investigates the behavior of a silty clay stabilized with 3, 6, 9, and 12 % of ground granulated blast-furnace slag (GGBS), respectively, and 1 % of quicklime used as an activator.
DOI: 10.1016/J.CLAY.2015.03.023 Corpus ID: 53559552; Comparison of reactive magnesia- and carbide slag-activated ground granulated blastfurnace slag and Portland cement for stabilisation of a natural soil
Granulated Blastfurnace Slag Granulated Blastfurnace Slag (GBS) is manufactured from molten blastfurnace slag, a co-product produced simulta-neously with iron. Rapid chilling with water or air forms a glassy granular material with latent-hydraulic properties. It is used for cement, concrete, mortar, grout and aggregates. For more informations on
FactSage Studies to Identify the Optimum Slag Regime for Blast Furnace Operation. Authors: Kanak Das. Tata Steel. Ashish Agrawal. Tata Steel Limited, India. A.S. Reddy. Rv Ramna. Abstract …
A by-product of the steel-making industry, granulated blastfurnace slag (GBFS) is produced by the rapid cooling of iron ore slag. This creates a hydraulic material that is naturally cementitious and high in calcium silicate hydrates (C-S-H), a compound that increases the strength and durability of concrete. The use of GBFS in cement has a long ...
1. Introduction. Ground granulated blast-furnace slag (GGBS) is an industrial by-product of steel manufacturing, and is widely used as a supplementary cementitious material (SCM) in concrete production to partially replace ordinary Portland cement (OPC) [1].The use of GGBS as a SCM not only reduces the porosity of OPC …
An example of such a glass substance is granulated blastfurnace slag, consisting to 95% of glass and containing about 30-55% m/m CaO and 25-50% m/m SiO2• In view of the prospect of a possible shortage of primary calcium (limestone) in the Netherlands it is logical that attention is being paid to this by-product with a lower calcium …
Three significant types of BFS that are granulated, air-cooled, and expanded slags can be produced depending on the cooling and solidifying methods of molten slag. …
Ground granulated blastfurnace slag (GGBS), a by-product from iron industry, has attracted enormous attention in treating gypseous soils due to its sustainability advantages and good performance ...
This technology reduces the formation of phosphates offshore and nitrogen oxides and protects the living environment near the coast. Fine-grained blast furnace …
A general characterization of the early stage hydration behaviour of ground granulated blastfurnace slag/ordinary Portland cement blends reacting in the temperature range 20–60°C has been made by thermal and electron microscopic techniques. In the blends studied, both the silicate and aluminate associated reactions were accelerated by …
The concretes were prepared from reference cement CEM I 42,5 N, the mixtures of CEM I 42,5 N and antimicrobial ground granulated blastfurnace slag BIOLANOVA (GGBS) (with amount of GGBS 65 mass ...
11.2.2 Ground-granulated furnace slag. Ground granulated blast-furnace slag, GGBFS, is a by-product of iron in blast-furnace. It mainly consists of silicate and aluminosilicate of melted calcium that periodically needed to be removed from the blast furnace. Similar to fly ash, the chemical compositions of GGBFS depend on the row materials used ...
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