Ammonia Emission from Concrete Admixtures Sold in Lanzhou / 环境与健康杂志
Journal of Environment and Health
; (12)1992.
Article
en Zh
| WPRIM
| ID: wpr-544589
Biblioteca responsable:
WPRO
ABSTRACT
0.05). The average amount of ammonia emission was 0.012%, 0.024% and 0.081% at pH values of 9, 11 and 13 respectively. Ammonia emission increased with the increasing pH values, especially for those admixtures containing carboxylate. Conclusion Ammonia emission from concrete admixtures sold in Lanzhou exceed the standard in different degree.Higher pH value may accelerate the ammonia emission from concrete admixtures and cause higher concentration of ammonia in indoor air.
Texto completo:
1
Base de datos:
WPRIM
Idioma:
Zh
Revista:
Journal of Environment and Health
Año:
1992
Tipo del documento:
Article