3.4.2.5
[Tooled Finish
The thoroughly cured concrete shall be dressed with electric, air, or hand
tools to a uniform texture and shall be given a [hand-tooled] [rough] [or]
[fine-pointed] [crandalled] [or] [bush-hammered] surface texture. The
finish shall be similar to and shall closely match the finish on the sample
panel.]
3.4.3
Formed Surface Repair
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NOTE: Refer to EM 1110-2-2000 for direction on
class of finish. Please note that definitions for
class of finish have been changed recently. Class
of finish shall also be shown in the drawings. The
section on formwork presents materials for each
class.
**************************************************************************
After removal of forms, all ridges, lips, and bulges on surfaces
permanently exposed shall be removed. All repairs shall be completed
within 48 hours after form removal.
3.4.3.1
Classes A, AHV, & B Finishes
Surfaces listed in Section 03100A STRUCTURAL CONCRETE FORMWORK and as
shown to have classes A, AHV, and B finishes shall have surface defects
repaired as follows: defective areas, voids, and honeycombs smaller than
10 000 square mm 16 square inches in area and less than 13 mm 1/2 inch deep
and bug holes exceeding 13 mm 1/2 inch in diameter shall be chipped and
filled with dry-packed mortar. Holes left by removal of tie rods shall be
reamed and filled with dry-packed mortar as specified in paragraph MATERIAL
AND PROCEDURE FOR REPAIRS. Defective and unsound concrete areas larger
than described shall be defined by 13 mm 1/2 inch deep dovetailed saw cuts
in a rectangular pattern with lines parallel to the formwork, the defective
concrete removed by chipping, and the void repaired with replacement
concrete. The prepared area shall be brush-coated with an epoxy resin
meeting the requirements of paragraph EPOXY RESIN, a latex bonding agent
meeting the requirements of paragraph LATEX BONDING COMPOUND, or a neat
cement grout after dampening the area with water. The void shall be filled
with replacement concrete in accordance with paragraph MATERIAL AND
PROCEDURE FOR REPAIRS.
3.4.3.2
Class C Finish
Surfaces listed in Section 03100A STRUCTURAL CONCRETE FORMWORK and as
shown shall have defects repaired as follows: defective areas, voids, and
honeycombs smaller than 15 000 square mm 24 square inchesand less than 50
mm 2 inches deep; bug holes exceeding 38 mm 1-1/2 inches in diameter shall
be chipped and filled with dry-packed mortar; and holes left by removal of
the tie rods shall be chipped and filled with dry-packed mortar. Defective
and unsound concrete areas larger than 15 000 square mm 24 square inches
and deeper than 38 mm 1-1/2 inches shall be defined by 13 mm 1/2 inch deep
dovetailed saw cuts in a rectangular pattern, the defective concrete
removed by chipping, and the void repaired with replacement concrete. The
prepared area shall be brush-coated with an epoxy resin meeting the
requirements of paragraph EPOXY RESIN, a latex bonding agent meeting the
requirements of paragraph LATEX BONDING COMPOUND, or a neat cement grout
after dampening the area with water. The void shall be filled with
SECTION 03301A
Page 40
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