Abrasive Wear Resistance of Concrete in Connection with the Use of Crushed and Mined Aggregate, Active and Non-Active Mineral Additives, and the Use of Fibers in Concrete

Lenka Bodnárová, Martin Ťažký, Lucia Ťažká, Rudolf Hela, Ondřej Pikna and Libor Sitek
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Lenka Bodnárová: Institute of Technology of Buildings Materials and Components, Faculty of Civil engineering, Brno University of Technology, Veveri 331/95, 602 00 Brno, Czech Republic
Martin Ťažký: Institute of Technology of Buildings Materials and Components, Faculty of Civil engineering, Brno University of Technology, Veveri 331/95, 602 00 Brno, Czech Republic
Lucia Ťažká: Institute of Technology of Buildings Materials and Components, Faculty of Civil engineering, Brno University of Technology, Veveri 331/95, 602 00 Brno, Czech Republic
Rudolf Hela: Institute of Technology of Buildings Materials and Components, Faculty of Civil engineering, Brno University of Technology, Veveri 331/95, 602 00 Brno, Czech Republic
Ondřej Pikna: Institute of Technology of Buildings Materials and Components, Faculty of Civil engineering, Brno University of Technology, Veveri 331/95, 602 00 Brno, Czech Republic
Libor Sitek: Department of material disintegration, Institute of Geonics of the CAS, Studentska 1768, 708 00 Ostrava, Czech Republic

Sustainability, 2020, vol. 12, issue 23, 1-26

Abstract: Virtually every concrete structure comes into contact with abrasive effects of flowing media or solids, which have a direct impact on the durability of concrete. An abrasive effect is most pronounced in transport or water management structures, and these structures are often designed for a significantly longer service life (usually 100 years). This research evaluates the influence of the filler component in terms of the type of aggregate and its mineralogical composition on concrete abrasion resistance. As part of the impact of the binder component, several concrete mixtures were produced using the same aggregate and maintaining the same strength class with the addition of different types of active and inert mineral additives. In other parts of the research, the effect of adding fiber reinforcement on the abrasion resistance of concrete was verified. Mutual connections and correlations in different age groups (7, 28 and 90 days) were sought for all obtained results. The abrasion resistance of the composite was monitored by using standard procedures, especially using a Böhm device. It was found that for good abrasion resistance of concrete, it is not necessary to produce concretes with high strength classes using often expensive mineral additives (microsilica) and quality aggregates, but the maturation time of the composite and its microstructure plays an important role.

Keywords: concrete composite; abrasion; type of aggregate; mineral additives; fiber; durability; concrete strength (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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