The present paper reports the results of a study on different types of fly ash from Serbian coal burning power plants and their potential use as a binder in alkali-activated concrete (AAC) depending on their radiological and mechanical properties. Five AAC mixtures with different types of coal burning fly ash and one type of blast furnace slag were designed. Measurements of the activity concentrations of 40K, 226Ra and 232Th were done both on concrete constituents (fly ash, blast furnace slag and aggregate) and on the five solid AAC samples. Experimental results were compared by using the activity concentration assessment tool for building materials - the activity concentration index I, as introduced by the EU Basic Safety Standards (CE, 2014). All five designed alkali-activated concretes comply with EU BSS screening requirements for indoor building materials. Finally, index I values were compared with the results of the application of a more accurate index - I(ρd), which accounts for ...thickness and density of building materials (Nuccetelli et al., 2015a). Considering the actual density and thickness of each concrete sample index - I(ρd) values are lower than index I values.
As an appendix, a synthesis of main results concerning mechanical and chemical properties is provided.
Keywords:
Fly ash / Blast furnace slag / Alkali activated concrete / Activity concentration / Activity concentration index I / Dose model
Source:
Journal of Environmental Radioactivity, 2016, 168, 30-37
This is the peer reviewed version of the following article: Nuccetelli C., Trevisi R., Ignjatović I., Dragaš J. (2016): Alkali-activated concrete with Serbian fly ash and its radiological impact, Journal of Environmental Radioactivity, 2016; 168, 30-37. http://dx.doi.org/10.1016/j.jenvrad.2016.09.002
TY - JOUR
AU - Nuccetelli, Cristina
AU - Trevisi, Rosabianca
AU - Ignjatović, Ivan
AU - Dragaš, Jelena
PY - 2016
UR - https://grafar.grf.bg.ac.rs/handle/123456789/1714
AB - The present paper reports the results of a study on different types of fly ash from Serbian coal burning power plants and their potential use as a binder in alkali-activated concrete (AAC) depending on their radiological and mechanical properties. Five AAC mixtures with different types of coal burning fly ash and one type of blast furnace slag were designed. Measurements of the activity concentrations of 40K, 226Ra and 232Th were done both on concrete constituents (fly ash, blast furnace slag and aggregate) and on the five solid AAC samples. Experimental results were compared by using the activity concentration assessment tool for building materials - the activity concentration index I, as introduced by the EU Basic Safety Standards (CE, 2014). All five designed alkali-activated concretes comply with EU BSS screening requirements for indoor building materials. Finally, index I values were compared with the results of the application of a more accurate index - I(ρd), which accounts for thickness and density of building materials (Nuccetelli et al., 2015a). Considering the actual density and thickness of each concrete sample index - I(ρd) values are lower than index I values.
As an appendix, a synthesis of main results concerning mechanical and chemical properties is provided.
PB - Elsevier
T2 - Journal of Environmental Radioactivity
T1 - Alkali-activated concrete with Serbian fly ash and its radiological impact
EP - 37
SP - 30
VL - 168
DO - 10.1016/j.jenvrad.2016.09.002
ER -
@article{
author = "Nuccetelli, Cristina and Trevisi, Rosabianca and Ignjatović, Ivan and Dragaš, Jelena",
year = "2016",
abstract = "The present paper reports the results of a study on different types of fly ash from Serbian coal burning power plants and their potential use as a binder in alkali-activated concrete (AAC) depending on their radiological and mechanical properties. Five AAC mixtures with different types of coal burning fly ash and one type of blast furnace slag were designed. Measurements of the activity concentrations of 40K, 226Ra and 232Th were done both on concrete constituents (fly ash, blast furnace slag and aggregate) and on the five solid AAC samples. Experimental results were compared by using the activity concentration assessment tool for building materials - the activity concentration index I, as introduced by the EU Basic Safety Standards (CE, 2014). All five designed alkali-activated concretes comply with EU BSS screening requirements for indoor building materials. Finally, index I values were compared with the results of the application of a more accurate index - I(ρd), which accounts for thickness and density of building materials (Nuccetelli et al., 2015a). Considering the actual density and thickness of each concrete sample index - I(ρd) values are lower than index I values.
As an appendix, a synthesis of main results concerning mechanical and chemical properties is provided.",
publisher = "Elsevier",
journal = "Journal of Environmental Radioactivity",
title = "Alkali-activated concrete with Serbian fly ash and its radiological impact",
pages = "37-30",
volume = "168",
doi = "10.1016/j.jenvrad.2016.09.002"
}
Nuccetelli, C., Trevisi, R., Ignjatović, I.,& Dragaš, J.. (2016). Alkali-activated concrete with Serbian fly ash and its radiological impact. in Journal of Environmental Radioactivity
Elsevier., 168, 30-37.
https://doi.org/10.1016/j.jenvrad.2016.09.002
Nuccetelli C, Trevisi R, Ignjatović I, Dragaš J. Alkali-activated concrete with Serbian fly ash and its radiological impact. in Journal of Environmental Radioactivity. 2016;168:30-37.
doi:10.1016/j.jenvrad.2016.09.002 .
Nuccetelli, Cristina, Trevisi, Rosabianca, Ignjatović, Ivan, Dragaš, Jelena, "Alkali-activated concrete with Serbian fly ash and its radiological impact" in Journal of Environmental Radioactivity, 168 (2016):30-37,
https://doi.org/10.1016/j.jenvrad.2016.09.002 . .
