Reinforcement -33110026

c.

As an alternate to using an absorptive wood form contact face as a

form liner, use "Zendrain" or an approved equal in strict

accordance with the manufacturer's recommendations.

2.2.7

Reinforcement

2.2.7.1

Reinforcing Bars

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NOTE: ASTM A 706/A 706M bars are mainly used in

seismic design or for welding.

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NOTE: Do not mix coated rebar and plain reinforcing

bars. This will produce a large corrosion cell

between the plain bar and any defect in the coated

bar.

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ACI 301 unless

otherwise specified. ASTM A 615/A 615M and ASTM A 617/A 617M

with the bars

marked A, Grade [40] [60]; or ASTM A 616/A 616M with the

bars marked R,

Grade [50] [60]. [ASTM A 706/A 706M.] Prefabricated epoxy

coated, ASTM A

934/A 934M. Do not use uncoated reinforcing steel.

2.2.7.2

Mechanical Reinforcing Bar Connectors

ACI 301. Provide 125 percent minimum yield strength of the reinforcement

bar. Coat connectors in accordance with the same requirements as

reinforcing bars.

2.2.7.3

Welded Wire Fabric

ASTM A 185 or ASTM A 497.

Provide flat sheets of welded wire fabric for

slabs and toppings.

2.2.7.4

Wire

ASTM A 82 or ASTM A 496.

[2.2.7.5

Fiber-Reinforced Concrete

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NOTE: Only use fiber reinforcement when approved by

the designer. Fiber reinforcing is used to help:

control cracking due to drying shrinkage and thermal

expansion/contraction; reduce permeability; and

increase impact capacity; shatter resistance,

abrasion resistance, and toughness. Fiber

reinforcing will not: control cracking due to

structural stresses; significantly increase

strength; control curling or creeping; justify

reducing structural members; eliminate control

joints; or replace any moment or structural steel

reinforcement. Include flexural toughness tests

when synthetic reinforcement fibers are used to

increase toughness and when justified by size and

importance of job, but not when fibers are used only

SECTION 03311

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