Ilmenite |
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A mineral having the theoretical composition Fe0 Ti
02 used principally in the production of titanium
oxide. (ASTM C 21)
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Impervious |
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That degree of vitrification evidenced visually by
complete resistance to dye penetration.(ASTM C
242).NOTE: The term impervious generally signifies
zero absorption, except for floor and wall tile
which are considered .,impervious'up to 0.5 per cent
water absorption.
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Impervious tile |
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Has water absorption of 0.5 percent or less.
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Incised |
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Decorated by cutting or indenting the ware surface.
(ASTM C 242).
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Inglaze decoration |
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See Decoration, inglaze.
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Initial setting time |
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The time required for a freshly mixed cement paste,
mortar or concrete to achieve initial set. (See also
Final setting time.)
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Ironstone ware |
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(Stone china, white granite ware). Historic terms
for a durable English earthenware. (ASTM C 242).
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Isolation joint |
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A separation between adjoining parts of a concrete
structure, usually a vertical plane, at a designed
location such as to interfere least with performance
of the structure, yet such as to allow relative
movement and avoid formation of cracks elsewhere in
the concrete and through which all or part of the
bonded reinforcement is interrupted. (See also
Contraction joint.)
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