3.12.4
Troweled Finish
**************************************************************************
NOTE: If the drawings do not indicate the areas to
receive a trowel finish, they must be specified
here. Edit accordingly. A troweled finish will be
specified for most wearing surfaces and where a
smooth dense surface finish is required. Edit
bracketed items as desired by designer. Delete this
paragraph when no troweled finish or subsequent
finish is required.
**************************************************************************
[Areas as indicated on the drawings] [The following areas [_____]] shall be
given a trowel finish. After floating is complete and after the surface
moisture has disappeared, unformed surfaces shall be steel-troweled to a
smooth, even, dense finish, free from blemishes including trowel marks. In
lieu of hand finishing, an approved power finishing machine may be used in
accordance with the directions of the machine manufacturer. Additional
trowelings shall be performed, either by hand or machine until the surface
has been troweled [2] [3] [4] times, with waiting period between each.
Care shall be taken to prevent blistering and if such occurs, troweling
shall immediately be stopped and operations and surfaces corrected. A
final hard steel troweling shall be done by hand, with the trowel tipped,
and using hard pressure, when the surface is at a point that the trowel
will produce a ringing sound. The finished surface shall be thoroughly
consolidated and shall be essentially free of trowel marks and be uniform
in texture and appearance. The concrete mixture used for troweled finished
areas shall be adjusted, if necessary, in order to provide sufficient fines
(cementitious material and fine sand) to finish properly.
3.12.5
Superflat Finish
**************************************************************************
NOTE: If the drawings do not indicate the areas to
receive a superflat surface, they must be specified
here. Correlate this paragraph with the
"Tolerances" paragraph in PART 1. Primary locations
where superflat floors are required are warehouse
aisles where very high lift forklifts and other type
stackers operate. Delete this paragraph when
superflat finish is not required.
**************************************************************************
[Areas as indicated on the drawings] [The following areas [_____]] shall be
constructed as superflat floors. Extreme care shall be taken to meet
specified tolerances. If necessary, special heavy duty, laser guided
machines built especially for this work shall be used and shall have
experienced, factory-trained operators. Finishing operations shall include
use of long-handled 3 meter 10 foot "highway type" cutting straightedges
plus any other tools necessary to meet the surface tolerance requirements.
Surface finish shall conform to paragraph [Troweled Finish] [_____].
3.12.6
Non-Slip Finish
**************************************************************************
NOTE: If drawings do not indicate the areas to
receive non-slip finish, they must be specified
here. Broom finish is usually used for exterior
SECTION 03300A
Page 54
Previous Page
