University of Oulu

Adesanya, E., Ohenoja, K., Kinnunen, P. et al. Mater Struct (2017) 50: 255.

Properties and durability of alkali-activated ladle slag

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Author: Adesanya, Elijah1; Ohenoja, Katja1; Kinnunen, Paivo1,2;
Organizations: 1Fibre and Particle Engineering Unit, Faculty of Technology, University of Oulu, Oulu, Finland
2Department of Civil and Environmental Engineering, Imperial College London, London, UK
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.1 MB)
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Language: English
Published: Springer Nature, 2017
Publish Date: 2019-11-05


This paper examines the durability of alkali activated ladle slag mortars. Ladle slag, currently an under-utilized crystalline metallurgical by-product, is a promising raw material for alkali activation. However, there is no information about the durability of this material. The aim of this study is to investigate the durability of the alkali activated ladle slag mortar and the effect of aggregate content on the properties. The mechanical strength tests were carried out at 7, 28, 56 and 90 days. In addition, the samples were subjected to drying shrinkage, freeze–thaw, and water absorption tests. Furthermore, the reaction products conversion related to the strength properties were also analysed through thermal analysis. Overall, significant strength and durability properties was attained and significantly influenced by the mix design.

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Series: Materials and structures
ISSN: 1359-5997
ISSN-E: 1871-6873
ISSN-L: 1359-5997
Volume: 51
Issue: 50
Article number: 255
DOI: 10.1617/s11527-017-1125-4
Type of Publication: A1 Journal article – refereed
Field of Science: 211 Architecture
215 Chemical engineering
216 Materials engineering
212 Civil and construction engineering
218 Environmental engineering
Funding: The research was funded by the European Regional Development Fund (A70189) and the following companies: SSAB Europe Oy, Ekokem Oy, Stora Enso Oy, Pohjolan Voima Oy and Oulun Energia.
Copyright information: © RILEM 2017.