Chyliński Filip, Goljan Anna, Michalik Agnieszka
Building Research Institute, Filtrowa 1, 00-611 Warsaw, Poland.
Materials (Basel). 2021 Feb 3;14(4):707. doi: 10.3390/ma14040707.
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.
本文介绍了对来自氮氧化物还原过程的高铵含量（高达400 ppm）粉煤灰进行的测试结果。根据EN 450-1对粉煤灰的主要性能进行了测试，并将结果与不含铵的粉煤灰进行了比较。比较结果表明，高铵含量的粉煤灰符合欧洲标准的要求。尽管该标准未对铵含量作出限制，但将此类材料用作水泥复合材料的添加剂会在搅拌过程中以及最终产品中产生气态铵排放。因此，对含有粉煤灰的砂浆中的铵排放进行了测试。结果表明，使用高铵含量的粉煤灰可能会污染室内空气并影响使用者的健康。
