The Middle Georgia crews installed the control joints the day after the pour with early entry saws. Additional decorative scoring was done during the polishing process, after the 200-grit resin abrasives pass and right before densification and dying. "You can perform the decorative saw cuts earlier, but we wait so we don't have to clean out those joints," he explains. "If you saw cut them earlier you just have to clean out the heavy sludge and slurry between each abrasive step."
The polishing process
After the place and finish, the six-man Middle Georgia polishing crew waited one month before starting the polishing sequence. The crew used a propane-powered 36-inch grinder/polisher from Eagle by Stonekor and a PowerStar Mongrel grinder/polisher. It also utilized Eagle's edge grinder for about 75 percent of the edge work, finishing out the balance of the edging by hand grinding.
Crews started the polishing sequence with 46-grit metal-bonded abrasives. They moved up to 70-grit metals and finally to 100-grit metals before switching to resin-bonded tooling. The first step in the resin-bonded sequence was a 50-grit abrasive; from there the crews moved to a 100-grit then a 200-grit abrasive. At that point, the crew densified the floor with Prosoco's Consolideck LS densifier and applied the architect-approved blend of standard dye colors from L. M. Scofield. The crew then proceeded sequentially through the CPAA-recommended polishing sequence up to 800-grit abrasives.
The floor was finished with Consolideck LS Guard and a pass with a burnisher. Middle Georgia left the owner with a maintenance plan that includes regular sweeping and cleaning.
The project was a successful one and went relatively smoothly, thanks to careful planning. "It wasn't a big job in terms of square footage, but it was the most intricate job we have done yet due to the scoring and the three different dye colors," Truax says.
Middle Georgia Concrete Constructors and its decorative division CSolutions
Full service concrete construction and decorative concrete
Number of Years in Polishing:
Certification Level in CPAA:
7,800 square feet
Key Products & Equipment:
Eagle by Stonekor grinder and edge grinder; PowerStar Mongrel grinder/polisher; L. M. Scofield dyes; Prosoco Consolideck LS densifier and LS Guard; Husqvarna Soff-Cut saw for control joints; Mongoose decorative saw by Engrave-A-Crete; Superabrasive diamond tooling.