Page 94 - Masonry and Concrete

Understanding Masonry
93
UNDERSTANDING MASONRY

FIGURE 4-6C
Type FBX brick.

water content of the mortar. Ideally, the body of the brick should be
moist and the outer surfaces dry to the touch (Figure 4-7). Sprinkle
dry brick with a garden hose at least one day ahead of time so the sur-
faces will dry off before you use them, and allow wet brick to dry to
the same condition.

Weathering Grade: There are two grades of brick, Grade MW (Mod-
erate Weathering) and Grade SW (Severe Weathering), which are
indicative of the brick’s ability to withstand freezing and thawing over
a long period without damage. In warm climates like south Florida,
south Texas, southern Arizona and southern California, Grade SW will
provide better performance for horizontal work where the brick is in
contact with the soil. In all other areas of the United States, Grade SW
is recommended for all outdoor uses because it has better resistance to
damage from repeated freezing and thawing.
4.2.3 Brick Pavers

Brick for use in streets, walks, patios, and driveways must be strong,
hard, and very dense. Used brick, although popular for residential

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