NDLI: Production and Characterization of Concrete Paving Blocks Containing Ferronickel Slag as a Substitute for Aggregates

Content Provider	Springer Nature Link
Author	Dimitrioglou, N. Tsakiridis, P. E. Katsiotis, N. S. Katsiotis, M. S. Perdikis, P. Beazi, M.
Copyright Year	2015
Abstract	The present work aims to investigate the potential valorization of ferronickel slag (FNS) as a substitute for aggregates in the production of H-shaped concrete paving blocks (CPB). FNS is a byproduct of the pyrometallurgical treatment of laterites for the recovery of Ni as ferronickel; its size distribution ranges within the specified limits for use as aggregates replacement, as shown by granulometric tests. Three compositions were prepared: a reference, containing only ordinary raw materials (CPB$_{Ref}$) and two others containing 10 wt% (CPB$_{10}$) and 20 wt% (CPB$_{20}$) aggregates replacement by FNS. Approximately 1000 blocks were produced in pilot scale for each composition. All mixtures were tested after 28 days of curing, in accordance with European Standard BS EN 1338 to determine water absorption, abrasion resistance, compressive and tensile/splitting strength. Spectral reflectance was measured on a UV–Visible-NIR spectrophotometer between 250 and 2500 nm, while thermal conductivity was determined by using a thermal conductivity analyzer. CPB morphological characteristics and microstructure were examined by scanning electron microscopy. Although it was found that limestone (LS) aggregates replacement by FNS relatively impaired the quality of the resulting CPB to a certain extent, the paving blocks using 10 wt% FNS met the minimum requirements specified by BS EN 1338 standard.
Starting Page	941
Ending Page	951
Page Count	11
File Format	PDF
ISSN	18772641
Journal	Waste and Biomass Valorization
Volume Number	7
Issue Number	4
e-ISSN	1877265X
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-12-23
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Concrete paving blocks Ferronickel slag Physical and mechanical properties Engineering Environment Renewable and Green Energy Industrial Pollution Prevention Waste Management/Waste Technology Environmental Engineering/Biotechnology
Content Type	Text
Resource Type	Article
Subject	Waste Management and Disposal Environmental Engineering Renewable Energy, Sustainability and the Environment

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Production and Characterization of Concrete Paving Blocks Containing Ferronickel Slag as a Substitute for Aggregates

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