Specs

Bridgestone Retail Operations, LLC
PROJECT MANUAL
Version: January 2012
I. Saw cut joints within plans the same day as the concrete is placed. As soon as the concrete has
hardened sufficiently to prevent raveling or dislodging of aggregates. This will typically be from 1
hour in hot weather to 4 hours in cold weather after completing the finishing of the slab in that joint
location. Use 3/16 inch thick blade, cut into ¼” depth of slab thickness.
J. Do not add water to concrete mix.
3.04 CONCRETE FINISHING
A. Repair surface defects, including tie holes, immediately after removing formwork.
B. Unexposed Form Finish: Rub down or chip off fins or other raised areas 1/4 inch or more in height.
C. Exposed Form Finish: Rub down or chip off and smooth fins or other raised areas 1/4 inch or more
in height. Provide finish as follows:
1. Smooth Rubbed Finish: Wet concrete and rub with carborundum brick or other abrasive, not
more than 24 hours after form removal.
D. Concrete Slabs: Finish to requirements of ACI 302.1R, and as follows:
1. Motorized powered – (hand operated or riding) steel trowel surfaces that will receive
carpeting, resilient flooring, seamless flooring, thin set quarry tile, and thin set ceramic tile.
2. Motorized powered – (hand operated or riding) steel trowel surfaces that will be left exposed.
3. Make successive passes with increased pressure to produce a smooth floor. Stop just prior to
creating dark trowel burns.
4. No sprinkling of water or cement while finishing which would cause dusting and scaling.
E. In areas with floor drains, maintain floor elevation at walls; pitch surfaces uniformly to drains at
1:100 nominal.
3.05 CURING AND PROTECTION
A. Maintain concrete with minimal moisture loss at relatively constant temperature for period
necessary for hydration of cement and hardening of concrete.
1. Normal concrete: Not less than 7 days.
2. High early strength concrete: Not less than 4 days.
B. Formed Surfaces: Cure by moist curing with forms in place for full curing period.
C. Surfaces Not in Contact with Forms:
1. Start initial curing as soon as free water has disappeared and before surface is dry. Keep
continuously moist for not less than three days by water-fog spray or saturated burlap.
2. Begin final curing after initial curing but before surface is dry.
a. Curing compound: Apply in two coats at right angles, using application rate
recommended by manufacturer. Confirm compatibility to stained concrete finishes, glues
and concrete sealers.
3.06 DEFECTIVE CONCRETE
A. Repair or replacement of defective concrete will be determined by the Owner's Representative.
The cost of additional testing shall be borne by Contractor when defective concrete is identified.
END OF SECTION
CAST IN PLACE CONCRETE 03300 - Page 3 of 3