Soil Stabilization Using Basic Oxygen Steel Slag Fines

Poh, H. Y.; Ghataora, Gurmel S.; Ghazireh, N

doi:10.1061/(asce)0899-1561(2006)18:2(229)

Cited by 157 publications

(56 citation statements)

References 16 publications

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“…This result is similar to the reported effect of the addition of basic oxygen steel slag fines on English China clay and Mercia mudstone [16]. Malasavage et al [11] reported a decrease in permeability of the dredged material with increasing steel slag fines content.…”

Section: Discussionsupporting

confidence: 80%

“…Poh et al [16] did not report the effects of the addition of steel slag fines on the index properties of the English China clay and Mercia mudstone used.…”

Section: Discussionmentioning

confidence: 99%

“…Few research works [11,16] have been conducted to use pulverized or steel slag fines as a potential soil modifier or stabilizer. While this few works used basic oxygen steel slag, no study has been found in the open literature that assessed the potential use of EAF steel slag for soil improvement or the potential use of steel slag for improving the geotechnical properties of a lateritic soil.…”

Section: Discussionmentioning

confidence: 99%

“…Malasavage et al [11] studied the use of steel slag fines to improve a dredged material (A -7 -6) for use as a synthetic fill material. Poh et al [16] studied the use of steel slag fines for stabilizing English China and Mercia mudstone. Of the two research works, that of Malasavage et al [11] seems more related to this study.…”

Section: Discussionmentioning

confidence: 99%

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Soil Modification by the Application of Steel Slag

Akinwumi

2014

Period. Polytech. Civil Eng.

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Section: Discussionsupporting

confidence: 80%

“…Poh et al [16] did not report the effects of the addition of steel slag fines on the index properties of the English China clay and Mercia mudstone used.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Soil Modification by the Application of Steel Slag

Akinwumi

2014

Period. Polytech. Civil Eng.

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“…Chemical stabilization is a suitable method for improving the bearing capacity and the strength of compacted CW, as shown by Okagbue and Ochulor (2007) who investigated the effectiveness of ordinary Portland cement (OPC) in the stabilization of Nigerian coal reject. On the other hand, Poh et al (2006), using SFS fines as a chemical additive for fine-grained (cohesive) soils, reported that at least 15-20% of SFS fines with a long curing period may be required in order to show a remarkable improvement in terms of unconfined compression strength (q u ), swelling behavior and durability. According to Shi (2004), the chemical composition and mineralogy of SFS is similar to that of OPC.…”

mentioning

confidence: 99%

Effects of Steel Slag Content and Curing Time on Compressive Strength of Underwater Compacted Coal Wash

Chiaro

Indraratna

Rujikiatkamjorn

et al. 2012

Proceedings of the International Conference on Ground Improvement &Amp; Ground Control

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The reclamation project at the Outer Harbor of Wollongong's Port Kembla, Australia, involves compaction of a large volume of granular fill material either under submerged or dry conditions. Due to environmental concerns (e.g. lack of suitable landfill space to dispose industrial wastes, conservation of natural resources etc) and the large volume reclamation project, Port Kembla Port Corporation is considering the use of locally abundant granular wastes of coal wash (CW) and steel furnace slag (SFS) as an alternative to conventional and costly fill materials. Although numerous studies have been reported on the geotechnical characterization of granular industrial wastes, only few information is available to comprehensively describe their compressive and mechanical behavior under submerged conditions. This paper reports on results of a series of unconfined compression strength (UCS) tests performed to investigate the effects of SFS content and curing time on the strength properties of underwater compacted mixtures of CW and SFS. For various mixtures kept submerged in seawater for a curing time of 7, 14 and 28 days, it was found that UCS strength properties increase with SFS content and The reclamation project at the Outer Harbor of Wollongong's Port Kembla, Australia, involves compaction of a large volume of granular fill material either under submerged or dry conditions. Due to environmental concerns (e.g. lack of suitable landfill space to dispose industrial wastes, conservation of natural resources etc) and the large volume reclamation project, Port Kembla Port Corporation is considering the use of locally abundant granular wastes of coal wash (CW) and steel furnace slag (SFS) as an alternative to conventional and costly fill materials. Although numerous studies have been reported on the geotechnical characterization of granular industrial wastes, only few information is available to comprehensively describe their compressive and mechanical behavior under submerged conditions. This paper reports on results of a series of unconfined compression strength (UCS) tests performed to investigate the effects of SFS content and curing time on the strength properties of underwater compacted mixtures of CW and SFS. For various mixtures kept submerged in seawater for a curing time of 7, 14 and 28 days, it was found that UCS strength properties increase with SFS content and curing time, while volumetric expansion became insignificant within one week.

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Direct Gas–Solid Carbonation Kinetics of Steel Slag and the Contribution to In situ Sequestration of Flue Gas CO₂ in Steel‐Making Plants

et al. 2013

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Direct gas-solid carbonation of steel slag under various operational conditions was investigated to determine the sequestration of the flue gas CO2 . X-ray diffraction analysis of steel slag revealed the existence of portlandite, which provided a maximum theoretical CO2 sequestration potential of 159.4 kg CO 2 tslag (-1) as calculated by the reference intensity ratio method. The carbonation reaction occurred through a fast kinetically controlled stage with an activation energy of 21.29 kJ mol(-1) , followed by 10(3) orders of magnitude slower diffusion-controlled stage with an activation energy of 49.54 kJ mol(-1) , which could be represented by a first-order reaction kinetic equation and the Ginstling equation, respectively. Temperature, CO2 concentration, and the presence of SO2 impacted on the carbonation conversion of steel slag through their direct and definite influence on the rate constants. Temperature was the most important factor influencing the direct gas-solid carbonation of steel slag in terms of both the carbonation conversion and reaction rate. CO2 concentration had a definite influence on the carbonation rate during the kinetically controlled stage, and the presence of SO2 at typical flue gas concentrations enhanced the direct gas-solid carbonation of steel slag. Carbonation conversions between 49.5 % and 55.5 % were achieved in a typical flue gas at 600 °C, with the maximum CO2 sequestration amount generating 88.5 kg CO 2 tslag (-1) . Direct gas-solid carbonation of steel slag showed a rapid CO2 sequestration rate, high CO2 sequestration amounts, low raw-material costs, and a large potential for waste heat utilization, which is promising for in situ carbon capture and sequestration in the steel industry.

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Soil Stabilization Using Basic Oxygen Steel Slag Fines

Cited by 157 publications

References 16 publications

Soil Modification by the Application of Steel Slag

Soil Modification by the Application of Steel Slag

Effects of Steel Slag Content and Curing Time on Compressive Strength of Underwater Compacted Coal Wash

Direct Gas–Solid Carbonation Kinetics of Steel Slag and the Contribution to In situ Sequestration of Flue Gas CO₂ in Steel‐Making Plants

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Soil Stabilization Using Basic Oxygen Steel Slag Fines

Cited by 157 publications

References 16 publications

Soil Modification by the Application of Steel Slag

Soil Modification by the Application of Steel Slag

Effects of Steel Slag Content and Curing Time on Compressive Strength of Underwater Compacted Coal Wash

Direct Gas–Solid Carbonation Kinetics of Steel Slag and the Contribution to In situ Sequestration of Flue Gas CO2 in Steel‐Making Plants

Contact Info

Product

Resources

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Direct Gas–Solid Carbonation Kinetics of Steel Slag and the Contribution to In situ Sequestration of Flue Gas CO₂ in Steel‐Making Plants