Steel
plants have to sacrifice the quality and quantity to produce
good quality slag.
|
Fly-ashes
are inferior in quality. |
Natural Pozzolan is uniform in
quality over large areas and no surprises are encountered
while assuring high quality.
|
Left
over iron ore, lime stone and coal, can vary from ton to ton
in chemical composition.
|
As
the waste of coal-fired power plants, fly ash is
inconsistent in chemical composition. |
Gases such as carbon dioxide, carbon monoxide and sulfur
gases are trapped inside the slag.
|
Fly-ashes normally contain excess amounts of carbon
dioxide and sulfur-trioxide.
|
Natural Pozzolan has no such gases trapped inside due to
natural cooling process over an indefinite timeline. |
Slag cement is well known for its slowness in developing
its compressive strength.
|
Fly-ashes are inferior in control of alkali-aggregate
reaction. |
Natural Pozzolan with cement is excellent in achieving
late strength and concert. |
Slag is inferior in reactivity with the calcium hydroxide
produced by cement hydration.
|
Fly-ashes are far inferior in reactivity with the
calcium-hydroxide |
Natural Pozzolan is unique in uniformity and high
reactivity with calcium hydroxide. |
