Fly Ash with Ammonia: Properties and Emission of Ammonia from Cement Composites.
ammonia
ammonia emission
ammonia slip
concrete
denitrification process
fly ash
Journal
Materials (Basel, Switzerland)
ISSN: 1996-1944
Titre abrégé: Materials (Basel)
Pays: Switzerland
ID NLM: 101555929
Informations de publication
Date de publication:
03 Feb 2021
03 Feb 2021
Historique:
received:
31
12
2020
revised:
21
01
2021
accepted:
28
01
2021
entrez:
6
2
2021
pubmed:
7
2
2021
medline:
7
2
2021
Statut:
epublish
Résumé
The article presents the results of tests performed on fly ash with a high content of ammonium (up to 400 ppm) from the NOx reduction process. The main properties of fly ash were tested according to EN 450-1 and the results were compared with fly ash without ammonium. The comparison showed that fly ash with high concentration of ammonium suits the requirements of the European standard. Although the requirements do not limit the ammonium content, using such material as an additive for cement composites causes the emission of gaseous ammonium during mixing and from the final product. For this reason, the emission of ammonium from mortars containing fly ash were tested. The results have shown that using high ammonium fly ash might pollute indoor air and affect the health of users.
Identifiants
pubmed: 33546246
pii: ma14040707
doi: 10.3390/ma14040707
pmc: PMC7913370
pii:
doi:
Types de publication
Journal Article
Langues
eng
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