Wall Type
Vertical
Horizontal
Structural
24 inches
48 inches
Non-structural
48 inches
80 inches
Bond beams are required at the top of footings, at the bottom and top of
openings at roof and floor levels, and at the top of parapet walls.
1.6
QUALITY ASSURANCE
1.6.1
Appearance
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NOTE: A typical manufacturing batch of brick
produces about 150,000 brick. Confirm with
manufacturer if the job can be run in one batch to
utilize the desirable bracketed option in the
following paragraph.
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[Bricks shall be manufactured at one time and from the same batch.] Blend
all brick to produce a uniform appearance when installed. An observable
"banding" or "layering" of colors or textures caused by improperly mixed
brick is unacceptable.
1.6.2
Testing
Masonry strength shall be determined in accordance with ACI 530/530.1;
submit test reports on three prisms as specified in ACI 530/530.1. The
cost of testing shall be paid by the Contractor.
1.6.3
Spare Vibrator
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NOTE: On small projects, requirement for spare
vibrator may be deleted.
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Maintain at least one spare vibrator on site at all times.
1.6.4
Bracing and Scaffolding
Provide bracing and scaffolding necessary for masonry work.
Design bracing
to resist wind pressure as required by local code.
PART 2
PRODUCTS
2.1
GENERAL REQUIREMENTS
The source of materials which will affect the appearance of the finished
work shall not be changed after the work has started except with
Contracting Officer's approval. The Contractor has the option to use
either hard metric or substitute inch-pound (soft-metric) CMU products. If
the Contractor decides to substitute inch-pound CMU products, the following
additional requirements shall be met:
a.
The metric dimensions indicated on the drawings shall not be
SECTION 04200
Page 15
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