What is
refractory brick.
Refractory brick and fire brick are made from the fire clay,
the process
of manufacturing these brick is same as the Ordinary brick but
burnt at very high
temperature special types of kilns. Generally Hoffmans kiln. The raw material
these brick consists
of flint clay and grag that has burned fire clears non plastic
material and
soft fire clay as plastic material
.
Generally
properties of these brick are
1. Colour of firebrick whitish yellow and light
brown.
2. The compressive strength of fire clay brick
varius 3.5N/mm2 to 48.26N/mm2 .
3. The water absorption percentage of brick varius
form 4% to 10%.
d
high-alumina-refractory-brick |
Uses:-
These brick are
generally used in lining furnaces kilns fire boxes and fire places.
The
principle type of fire breaks are acid
refractory brick
There are
three type of refractory brick.
1.
Acid Refractory brick.
2.
Basic refractory brick.
3.
Neutral refractory brick.
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