Monitoring degradation in alkaline-activated slag materials
DOI:
https://doi.org/10.14311/APP.2024.47.0071Keywords:
degradation, alkali-activated slag materials, non-destructive testing, decalcification, compressive strengthAbstract
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.