shall conform to the approved sample. Brick shall conform to ASTM C 62;
Grade SW shall be used for brick in contact with earth or grade and for
[the first six exterior courses above grade] [all exterior work] and for
all nonvertical surfaces. Grade SW or MW shall be used in other brickwork.
Average dimensions of brick shall be 90 mm thick, 57 mm high, and 190 mm
long (standard) 3-5/8 inches thick, 2-1/4 inches high, and 8 inches long
(standard) or 4 inches thick, 2-2/3 inches high, and 8 inches long (nominal),
subject to the tolerances specified in ASTM C 62. Brick shall be tested
for efflorescence. Clay or shale brick units shall be delivered
factory-blended to provide a uniform appearance and color range in the
completed wall.
2.2.1
Solid Clay or Shale Brick
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NOTE: ASTM C 216 may be deleted for projects
located where brick conforming to ASTM C 62 provides
aesthetic appearance that does not detract from the
design, is generally available and predominantly
used in the area, and the specific brick will blend
with existing or adjacent architecture.
Specify facing brick only where aesthetic value is a
prime consideration or to match existing
construction. See ASTM C 216 for conditions under
which Grade MW may be allowed.
If larger units, such as utility brick, are
required, change the specified dimensions. If
nominal dimensions are used, they should be so
noted. Consider the use of closure or utility brick
when it is architecturally acceptable, though not
solid, at least as a Contractor's option. The cost
per square foot of wall is about 15 percent less for
closure brick, 20 percent less for utility brick,
than for standard brick. Use paragraph titled
"Closure or Utility Brick" below.
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Solid clay or shale brick shall conform to [ASTM C 62] [ASTM C 216, Type
[FBS] [FBA] [FBX]]. Brick size shall be modular and the nominal size of
the brick used shall be 92 mm 3-5/8 inches thick, 57 mm 2-1/4 inches high,
and 200 mm 8 inches long (nominal) or 100 mm thick, 68 mm high and 200 mm
long (nominal) 4 inches thick, 2-2/3 inches high and 8 inches long (nominal).
Minimum compressive strength of the brick shall be [_____] MPa psi.
2.2.2
Hollow Clay or Shale Brick
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NOTE: For exposed exterior and interior masonry,
HBX has narrow color variation and high degree of
mechanical perfection. Use HBS where greater
variation is allowed. For architectural effects
resulting from nonuniformity in size, color, and
texture, use HBA. Use HBB where color and texture
are not a consideration and a greater variation in
size is permitted.
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SECTION 04200
Page 17
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