TABLE III
POUR HEIGHT AND TYPE OF GROUT FOR VARIOUS GROUT SPACE DIMENSIONS
Minimum Dimensions of the
Total Clear Areas Within Grout
Maximum
Spaces and Cells (in.) (1,2)
Grout Pour
Height
Grout
Grouting
Multiwythe
Hollow-unit
(feet) (4)
Type
Procedure
Masonry (3)
Masonry
____________
_______
____________
___________
______________
5
Coarse
Low Lift
2
2-1/2 x 3
8
Coarse
High Lift
2
3x3
12
Coarse
High Lift
2-1/2
3x3
24
Coarse
High Lift
3
3x4
Notes:
(1) The actual grout space or cell dimension must be larger than the
sum of the following items:
a) The required minimum dimensions of total clear areas given in
the table above;
b) The width of any mortar projections within the space;
c) The horizontal projections of the diameters of the horizontal
reinforcing bars within a cross section of the grout space or cell.
(2) The minimum dimensions of the total clear areas shall be made up
of one or more open areas, with at least one area being 20 mm 3/4
inch or greater in width.
(3) For grouting spaces between masonry wythes.
(4) Where only cells of hollow masonry units containing reinforcement
are grouted, the maximum height of the pour shall not exceed the
distance between horizontal bond beams.
3.10
BOND BEAMS
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NOTE: Bond beams that are continuous over openings
will be reinforced to serve as lintels.
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Bond beams shall be filled with grout and reinforced as indicated on the
drawings. Grout barriers shall be installed under bond beam units to
retain the grout as required. Reinforcement shall be continuous, including
around corners, except through control joints or expansion joints, unless
otherwise indicated on the drawings. Where splices are required for
continuity, reinforcement shall be lapped 48 bar diameters. A minimum
clearance of 13 mm 1/2 inch shall be maintained between reinforcement and
interior faces of units.
3.11
CONTROL JOINTS
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NOTE: Control joints will be located and detailed
on the drawings. When control joint keys are
required it is a Contractor's option to use either
special control joint units or sash jamb units with
SECTION 04200
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