PART 2
PRODUCTS
2.1
FORM MATERIALS
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NOTE: This paragraph should be edited to reflect
project requirements. Description of classes of
finish are contained in Section 03300 CAST-IN-PLACE
STRUCTURAL CONCRETE.
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2.1.1
Forms For Class A and Class B Finish
Forms for Class A and Class B finished surfaces shall be plywood panels
conforming to PS1, Grade B-B concrete form panels, Class I or II. Other
form materials or liners may be used provided the smoothness and appearance
of concrete produced will be equivalent to that produced by the plywood
concrete form panels. Forms for round columns shall be the prefabricated
seamless type.
2.1.2
Forms For Class C Finish
Forms for Class C finished surfaces shall be shiplap lumber; plywood
conforming to PS1, Grade B-B concrete form panels, Class I or II; tempered
concrete form hardboard conforming to AHA A135.4; other approved concrete
form material; or steel, except that steel lining on wood sheathing shall
not be used. Forms for round columns may have one vertical seam.
2.1.3
Forms For Class D Finish
Forms for Class D finished surfaces, except where concrete is placed
against earth, shall be wood or steel or other approved concrete form
material.
2.1.4
Retain-In-Place Metal Forms
Retain-in-place metal forms for concrete slabs and roofs shall be as
specified in Section 05310 STEEL DECKS.
2.1.5
Pan-Form Units
Pan-form units for one-way or two-way concrete joist and slab construction
shall be factory-fabricated units of the approximate section indicated.
Units shall consist of steel or molded fiberglass concrete form pans.
Closure units shall be furnished as required.
2.1.6
Form Ties
Form ties shall be factory-fabricated metal ties, shall be of the removable
or internal disconnecting or snap-off type, and shall be of a design that
will not permit form deflection and will not spall concrete upon removal.
Solid backing shall be provided for each tie. Except where removable tie
rods are used, ties shall not leave holes in the concrete surface less than
6 mm 1/4 inch nor more than 25 mm 1 inch deep and not more than 25 mm 1 inch
in diameter. Removable tie rods shall be not more than 38 mm 1-1/2 inches
in diameter.
SECTION 03100A
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