Valorisation potential of low-grade fly ash as a sustainable MgO source for iron ore sintering: Insights from in situ X-ray diffraction and tablet studies

Taira, Kenji; Webster, Nathan A.S.; Ignácio, Isis R.; Ware, Natalie; D’Angelo, Anita M.; Zhang, Lian; Pownceby, Mark I.

doi:10.1016/j.jece.2024.112934

Journal of Environmental Chemical Engineering

2024

DOI: 10.1016/j.jece.2024.112934

|View full text |Cite

Valorisation potential of low-grade fly ash as a sustainable MgO source for iron ore sintering: Insights from in situ X-ray diffraction and tablet studies

Kenji Taira,

Nathan A.S. Webster,

Isis R. Ignácio

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Performance evaluation of controlled low-strength blended cement concrete modified with recycled waste materials

Karthik,

Oyebisi,

Shakor

et al. 2024

WJE

View full text Add to dashboard Cite

Purpose This work aims to investigate the feasibility of recycling waste plastic (polyethylene terephthalate) as a coarse aggregate for producing blended cement concrete modified with fly ash and pond ash. Design/methodology/approach The low, medium and high controlled strength blended cement concrete modified with varied proportions of fly and pond ashes were produced. Manufactured sand and recycled plastic coarse aggregate (RPCA) replaced normal fine and coarse aggregates. Concrete samples were tested for workability, mechanical and durability characteristics. Microstructural analysis was performed on cement concrete blended with fly and pond ashes and compared to conventional concrete samples. Findings All concrete mixes showed better flowability with values greater than 200 mm. Besides, the maximum flow time was approximately 8 s. The wet density of blended cement concrete-RPCA-based concretes was approximately 30% lower than that of conventional concrete. The compressive strengths of the controlled strength mix at 7 and 28 days were within the specified ranges. While the conventional concrete had slightly higher permeability, the blended cement concrete-RPCA-based concretes had better thermal resistivity and lower thermal conductivity. The scanning electron microscopy analysis revealed the densification of the microstructure due to the filler effects of fly and pond ashes. Originality/value This study establishes the prospects of substituting RPCA with normal coarse aggregate in the production of controlled low-strength blended cement concrete, offering benefits of structural fill concrete, lower permeability and thermal conductivity, higher thermal resistivity and reduced density and shrinkage.

show abstract

Performance evaluation of controlled low-strength blended cement concrete modified with recycled waste materials

Karthik,

Oyebisi,

Shakor

et al. 2024

WJE

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Valorisation potential of low-grade fly ash as a sustainable MgO source for iron ore sintering: Insights from in situ X-ray diffraction and tablet studies

Cited by 1 publication

References 63 publications

Performance evaluation of controlled low-strength blended cement concrete modified with recycled waste materials

Performance evaluation of controlled low-strength blended cement concrete modified with recycled waste materials

Contact Info

Product

Resources

About