The CCPs’ production is
monitored via a periodical report on “Worldwide
production of coal ash
and utilization in concrete and other products”. The first report
in 1997 (ref. to Oskar
Manz) pointed out that
the total worldwide fly
ash production was 459
processing for achieving complete utilization,
such as: a) it is Calcium
Alumina Silicate with
granular size between
25 and 85 microns with
high Carbon residue, b)
very high alkali activity
Fly ash has complex (pH 10 to 11) c) very
properties that limit or high surface activity,
impose additional costly d) contains residue of
million tons. Recently,
this production almost
doubled. It needs to be
pointed out that 68% of
the total CCPs are produced as fly ash.
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