Open AccessStudy on coal fly ash classified by bulk density
Author(s) -
ShiJin Feng,
Yanqi Li
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1732/1/012127
Subject(s) - fly ash , bulk density , coal , calcium oxide , particle density , energy density , mineralogy , particle size , particle (ecology) , chemistry , materials science , metallurgy , environmental science , soil science , composite material , geology , thermodynamics , physics , organic chemistry , volume (thermodynamics) , oceanography , soil water , theoretical physics
As a major country with coal as its main energy source, China has great pressure on the production and reuse of coal fly ash. In this paper, three kinds of original low calcium fly ash from different regions were divided into five bulk density particle groups, 2.98 g/cm 3 . The results showed that the bulk density of fly ash particles was mostly concentrated in 1-2.5 g/cm 3 . There were significant differences in the chemical composition and activity of the particle groups with different bulk density, but no consistent changes were observed. The correlation degree between acid oxide content and activity was significantly higher than that between bulk density and activity, indicating that acid oxide content had a significantly higher influence on activity than bulk density.