TY - GEN
T1 - Properties of calcium enriched fly ash and its utilization in concrete
AU - Ma, X.
AU - Gong, Y.
AU - Gong, X.
PY - 2007
Y1 - 2007
N2 - Properties of Calcium enriched fly ash (CEFA) and its utilization is introduced in this paper. CEFA is combustion residue in electric power plants burning bituminous coal. The calcium is enriched intentionally by means of grinding limestone and coal powder together. CEFA is formed in the turbofurnace of the vertical cyclone boilers at the temperature of 1450° to 1600°. CEFA is characterized by higher calcium oxide and free lime, lower ferric oxide, lower water requirement, and higher reactivity. Self-setting and self-hardening are the specific performance because of existence of lime, calcium silicates and calcium aluminates in it. In concrete mixture, the volume of fly ash can be as high as 20% to 70% of the binder. Concrete develops a satisfactory compressive strength when cement is partially replaced.
AB - Properties of Calcium enriched fly ash (CEFA) and its utilization is introduced in this paper. CEFA is combustion residue in electric power plants burning bituminous coal. The calcium is enriched intentionally by means of grinding limestone and coal powder together. CEFA is formed in the turbofurnace of the vertical cyclone boilers at the temperature of 1450° to 1600°. CEFA is characterized by higher calcium oxide and free lime, lower ferric oxide, lower water requirement, and higher reactivity. Self-setting and self-hardening are the specific performance because of existence of lime, calcium silicates and calcium aluminates in it. In concrete mixture, the volume of fly ash can be as high as 20% to 70% of the binder. Concrete develops a satisfactory compressive strength when cement is partially replaced.
UR - https://www.scopus.com/pages/publications/84857780281
M3 - 会议稿件
AN - SCOPUS:84857780281
SN - 9780415446891
T3 - Sustainable Construction Materials and Technologies - International Conference on Sustainable Construction Materials and Technologies
SP - 183
EP - 187
BT - Sustainable Construction Materials and Technologies - International Conference on Sustainable Construction Materials and Technologies
T2 - International Conference on Sustainable Construction Materials and Technologies
Y2 - 11 June 2007 through 13 June 2007
ER -