Recent Utilization of Fly-Ash in Japan
1968 Volume 47 Issue 2 Pages 98-106
Details
1968 Volume 47 Issue 2 Pages 98-106
Utilization of coal ash produced from power station has rapidly progressed in Japan.
The coal ash from dry bottom boilers is divided in following three divisions.
(a) Fly ash-Elective precipitator.
(b) Fly ash-Multi cyclone.
(c) Coarse ash-Bottom economizer and air heator.
(a) is mainly provided to the fly ash cement and pozzolan material. This supply amounted to 645, 162 _??_ per year in 1966.
Authors touched on various pozzoran effects of fly ash in this treatise.
(b) is mainly provided to farms as a special fertiger that is named Green Ash.This supply amounted to 81, 236 _??_ per year in 1966.
(c) is mainly utilized as a road-bace stabilizer that is named Coal Sand. We have reserched the fundamental workability of each Coal Sand rejected from several power station, Kyusyu Electric Power Co. Ltd. and obtained Satisfactory results. In recent 2 years, we have supplied about 100, 000 m3 of Coal Sand to Kyushu district.
