Monitoring degradation in alkaline-activated slag materials

Authors

  • Houssam Mahmoud Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic
  • Libor Topolář Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic
  • Iveta Plšková Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic
  • Luboš Jakubka Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic
  • Luboš Pazdera The Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic

DOI:

https://doi.org/10.14311/APP.2024.47.0071

Keywords:

degradation, alkali-activated slag materials, non-destructive testing, decalcification, compressive strength

Abstract

This paper deals with determining degradation changes in alkaline-activated slag-based building materials. It describes methods for determining dynamic elastic moduli obtained by acoustic non-destructive methods, including the ultrasonic pulse method and the resonance method. A finegrained mortar was chosen as the initial mix for the implementation of the experiment, the binder part of which was sodium hydroxide-activated blast-furnace granulated slag. Beams with dimensions of 40 × 40 × 160 mm were chosen as test bodies, for which acoustic non-destructive methods monitored changes in the material structure during degradation processes.

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Published

2024-05-16

How to Cite

Monitoring degradation in alkaline-activated slag materials. (2024). Acta Polytechnica CTU Proceedings, 47, 71-74. https://doi.org/10.14311/APP.2024.47.0071