When concrete is cured at temperature higher than 100 degree Celsius
that induces relative high pressure applied and concrete container known as
“Autoclave” shall also be tightly sealed. The temperature will remain at 160 –
210 degree Celsius with pressure at 6 -20 atm when curing is in progress. Under
highly-pressurized condition, the compound acquired from such reaction will be at
variance from typical compound, which cured less than 100 degree Celsius. The
following items are advantages of high pressure steam curing.
-
Enable
utilization within 24 hours due to concrete has compressive strength equivalent
to one that cured for 28 days.
-
Low
shrinkage and fatigue
-
Durability
toward sulfate salt
-
Eliminate
Efflorescence
-
Low
moisture after curing
In practice, the implementation is costly and
often applied to the processed concrete product only. However there are some specific
products that applied this principle such as fiber-optic cement tile.
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