Issue |
MATEC Web Conf.
Volume 313, 2020
Dynamics of Civil Engineering and Transport Structures and Wind Engineering – DYN-WIND’2020
|
|
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Article Number | 00039 | |
Number of page(s) | 8 | |
DOI | https://doi.org/10.1051/matecconf/202031300039 | |
Published online | 16 April 2020 |
Influence of alkali-activated materials placement during curing on their dynamic parameters
1
Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic
2
Brno University of Technology, Faculty of Chemistry, Purkyňova 464/118, 612 00 Brno, Czech Republic
* Corresponding author: plskova.i@fce.vutbr.cz
The production of Portland cement has a considerable environmental impact. Its replacement with alkali-activated binders can contribute to reducing the environmental burden of building production. The paper presents partial results from our experimental research carried out on test specimens made of alkali-activated slag mortar (activated by sodium carbonate). The specimens of dimensions 40×40×160 mm differed in the manner of placement after 28 days of curing in water. The samples were tested by non-destructive methods at different ages. We observed the effect of sample storage on ultrasonic pulse velocity, dominant frequency shifts and dynamic modulus of elasticity as well as changes of these parameters over time.
© The Authors, published by EDP Sciences, 2020
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