TY  - JOUR
AU  - Růžek, Vojtěch
AU  - Louda, Petr
AU  - Buczkowska, Katarzyna
AU  - Just, Paweł
AU  - Prałat, Karol
AU  - Ciemnicka, Justyna
AU  - Przemysław, Plaskota
TI  - Modifying geopolymer wettability by plasma treatment and high-carbon fly ash
JF  - FRONTIERS IN BUILT ENVIRONMENT
J2  - FRONT BUILT ENVIRON
VL  - 8
PY  - 2022
SP  - 991496
SN  - 2297-3362
DO  - 10.3389/fbuil.2022.991496
UR  - https://m2.mtmt.hu/api/publication/33073019
ID  - 33073019
AB  - This paper deals with investigation of changes in geopolymer wettability with increasing mass fraction of high-carbon fly ash and surface treatment by cold atmospheric plasma (CAP) to determine the influence of fly ash on wettability and whether it is a viable method to increase surface wettability for further surface treatment. In this study, multiple samples of geopolymers were prepared, including those with 16% and 32% of high-carbon fly ash from coal-fired power station. Wettability of samples was then measured before and after plasma treatment, both on surface and cut surface by using static sessile drop method to measure the differences in contact angle. While addition of fly ash only had low effect on the wettability, as in most cases, it only lowered the initial contact angle without speeding up the speed of soaking for compact geopolymer and actually slowed the soaking for foamed geopolymer, plasma treatment had significant impact and made the geopolymer completely hydrophobic, making plasma treatment a viable method to increase geopolymer wettability.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Khalaf, Ali Abdulhasan
AU  - Kopecskó, Katalin
TI  - Proposed simplified method of geopolymer concrete mix design
JF  - CONCRETE STRUCTURES: ANNUAL TECHNICAL JOURNAL: JOURNAL OF THE HUNGARIAN GROUP OF FIB
J2  - CONCRETE STRUCTURES
VL  - 21
PY  - 2020
SP  - 31
EP  - 37
PG  - 7
SN  - 2062-7904
DO  - 10.32970/CS.2020.1.5
UR  - https://m2.mtmt.hu/api/publication/31959973
ID  - 31959973
LA  - English
DB  - MTMT
ER  -