Electrical Properties of Steel Fibre Reinforced Alkali-Activated Slag Composite

Abstract:

Alkali-activated slag is an alternative binder to the ordinary Portland cement. In order to improve its tensile properties steel fibres as dispersed reinforcement can be used. Since steel is very good conductor it changes the electrical properties of alkali-activated slag composite that can have a potential to be used as self-sensing material then. In this study up to 20% of steel fibres by mass of the slag was added to alkali-activated slag mortar and the mechanical properties, electrical resistance, capacitance and microstructure of the composites were investigated. The results showed that the best improvement of both the mechanical and electrical properties can be observed for the composite with 15% of steel fibres.

• Periodical: Key Engineering Materials (Volume 760)
• Pages: 55-60
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.760.55
• Online since: January 2018
• Authors: Pavel Rovnaník*, Ivo Kusák
• Keywords: Alkali-Activated Slag, Electrical Properties, Mechanical Properties, Steel Fiber

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