Figure 7-43.-Standard shapes of side-construction building tiles.
Figure 7-44.-Standard shapes of end-construction building tiles.
is laid on one of its web faces is called an
compressive strength of tile masonry of 300 lb per
END-CONSTRUCTION tile. Figures 7-43 and
square in, based on the gross section may be
7-44 show the sizes and shapes of basic side- and
end-construction building units. Special shapes for
use at corners and openings, or for use as closures,
are also available.
The compressive strength of the individual tile
depends upon the materials used and upon the
method of manufacture, in addition to the
thickness of the shells and webs. A minimum
expected. The tensile strength of structural clay
tile masonry is small. In most cases, it is less than
10 percent of the compressive strength.
The abrasion resistance of clay tile depends
primarily upon its compressive strength. The
stronger the tile, the greater its resistance to wear-
ing. The abrasion resistance decreases as the
amount of water absorbed increases.
Structural clay facing tile has excellent
resistance to weathering. Freezing and thawing
action produces almost no deterioration. Tile that