continuous pour on the same day. When a second pour is required, the edge
of the previous work shall be fully coated with polyurethane binder to
ensure 100 percent bond with new work. Adhesive shall be applied in small
quantities so that new substrate can be placed before the adhesive dries.
3.2.2.3
Poured-in-Place Wear Surface
Wear surface shall be bonded to substrate. Adhesive shall be applied to
substrate in small quantities so that wear surface can be applied before
adhesive dries. Surface shall be hand troweled to a smooth, even finish.
When wear surface is composed of different color patterns, pour shall be
continuous and seamless. When seams are required due to color change or
field conditions, the adjacent wear surface shall be placed as soon as
possible, before initial pour has cured. The edge of initial pour shall be
coated with adhesive and wear surface mixture shall be immediately applied.
3.2.3
Tile System
Tile shall be laid out to ensure that end cuts are equal. Tile shall be
installed in accordance with manufacturer's instructions. Hardware shall
be as recommended by the manufacturer. Tile shall be bonded to the
subsurface with an adhesive approved by the manufacturer. Cutouts shall be
filled with sealant according to manufacturer's instructions to eliminate
voids at equipment. Sealant shall be the minimum amount necessary, shall
not exceed a maximum 10 mm 3/8 inch width. Where excessive voids occur at
cutouts, tile shall be removed and refitted. The tile system shall be
installed throughout the play equipment use zone with the proper thickness.
3.2.4
Combination System
The combination system shall consist of [modular impact attenuating
substrate units, adhered to form a unified system], [shredded rubber tires
over a gravel substrate] [_____]. The substrate shall be covered with a
wear surface as specified. Cutouts around equipment shall be properly
filled and sealed according to manufacturer's instructions to eliminate
voids. Sealant shall be the minimum amount necessary, shall not exceed a
maximum 10 mm 3/8 inch width. Where excessive voids occur at cutouts, the
modular substrate shall be removed and refitted. Construction methods
shall be employed to ensure full depth installation of specified surfacing
material and the finished wear surface.
3.2.4.1
Geotextile Fabric for Combination System
Geotextile fabric shall be installed where a modular or shredded rubber
substrate is installed over an aggregate base. It should be installed with
poured-in-place wear surface or polyethylene plastic woven sheet wear
surface installed over substrate. Fabric shall cover the entire area to
receive the tile system and shall be lapped a minimum 100 mm 4 inch width
at the seams. Seams shall be adhered in accordance with manufacturer's
recommendations.
3.2.4.2
Modular Substrate for Combination System
Modular substrate shall be laid out to minimize small end pieces. The
substrate shall be installed in accordance with manufacturer's instructions.
3.2.4.3
Poured-in-Place Substrate for Combination System
Same as paragraph POURED-IN-PLACE SYSTEM.
SECTION 02791
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