University of Oulu

Hoang Nguyen, Malena Staudacher, Paivo Kinnunen, Valter Carvelli, Mirja Illikainen, Multi-fiber reinforced ettringite-based composites from industrial side streams, Journal of Cleaner Production, Volume 211, 2019, Pages 1065-1077, ISSN 0959-6526,

Multi-fiber reinforced ettringite-based composites from industrial side streams

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Author: Nguyen, Hoang1; Staudacher, Malena2; Kinnunen, Paivo1;
Organizations: 1Fibre and Particle Engineering Research Unit, University of Oulu
2Institute of Mechanical Process Engineering and Mineral Processing, Technical University Bergakademie Freiberg
3Department A.B.C., Politecnico di Milano
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.4 MB)
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Language: English
Published: Elsevier, 2018
Publish Date: 2018-12-31


The development of high-performance cementitious composites from industrial side streams, which has both economic and environmental benefits, is of high demand. Ladle slag is a promising by-product from the steelmaking industry, which can form an ettringite-based binder. This experimental investigation focuses on the mechanical properties of different hybrid and mono fibers reinforced by ettringite-based binders from the ladle slag. The experimental results reveal that fibers greatly enhance the mechanical properties of the developed mixtures. The composites exhibit strain-hardening behavior with multiple cracks under flexural and tensile loading. In addition, the compressive strength of the composites can be 130% higher than the plain materials. To attain a balance between mechanical and economic aspects, a multi-criteria ranking method was used to evaluate 12 different mixtures. The ranking method suggests that a polypropylene micro fiber reinforced composite is the best mixture. The study recommends the efficient use of this industrial by-product for valuable applications in the construction industry.

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Series: Journal of cleaner production
ISSN: 0959-6526
ISSN-E: 1879-1786
ISSN-L: 0959-6526
Volume: 211
Pages: 1065 - 1077
DOI: 10.1016/j.jclepro.2018.11.241
Type of Publication: A1 Journal article – refereed
Field of Science: 212 Civil and construction engineering
216 Materials engineering
218 Environmental engineering
Funding: This work was supported by the European Regional Development Fund [grant number: A70189]. The authors appreciate support from Brasilit Saint-Gobain (Brazil), Baumhueter Extrusion GmbH (Germany), Kuraray (Japan), SSAB Europe Oy (Finland), BASF (Germany), and Vanderbilt (USA) for providing the PPMF, PPSF, PVA fibers, the LS, the superplasticizer, and the dispersing agent, respectively. Hoang Nguyen gratefully acknowledges the financial support from the Tauno Tönning Foundation.
Copyright information: © 2018 The Authors. Published by Elsevier Ltd. Published under a Creative Commons license.