Nailable concrete |
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Concrete, usually made with a suitable lightweight
aggregate, with or without the addition of sawdust,
into which nails can be driven.
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Natural clay tile |
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A tile made by either the dust-pressed method or the
plastic method, from clays that produce a dense body
having a distinctive, slightly textured appearance.
(ASTM C 242).
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Neat cement |
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Hydraulic cement in the unhydrated state. Neat
cement grout. A fluid mixture of hydraulic cement
and water, with or without admixture; also the
hardened equivalent of such mixture.
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Neat cement paste |
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A mixture of hydraulic cement and water, both before
and after setting and hardening. Neoprene. A type of
synthetic rubber with outstanding oil resistance.
Can be used for quick-setting, high strength
adhesives.
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Nepheline syenite |
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A mineral aggregate consisting chiefly of albite,
microcline, and nephelite, each in significant
amount. (ASTM C 242).
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Nominal sizes |
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This is the approximate facial size or thickness of
tile, expressed in inches or fractions of an inch,
for general reference.
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Non-slip tile |
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Tile having greater non-slip characteristics clue to
an abrasive admixture, abrasive particles in the
surface, grooves or patterns in the surface or
because of natural non-skid surface characteristics.
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Non-vitreous (non-vitrified) |
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That degree of vitrification evidenced by relatively
high water absorption. (ASTM C 242). NOTE: The term
nonvitrcous generally signifies more than 10.0 her
cent water absorption, except for floor and wall
tile which are considered nonvitreous when water
absorption exceeds seven per cent.
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Notched trowels |
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Notched trowels are available in the serrated and
square-tooth design. The teeth are made in various
sizes. The correct tooth size and depth must be used
to apply the thickness of bonding mortar specified.
These trowels are used to apply all of the various
kinds of bonding materials for ceramic tile. When
the teeth become worn, the trowel has to he
resharpened or replaced.
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