Concrete Stabilization Technologies, Inc.’s crews began work on the column repair & rehabilitation project at the Teton Building in Cheyenne, Wyoming Monday, June 25th, 2012. The project began by placing shoring and re-moving and cleaning up the deteriorated columns. The following day, the concrete floor was removed from the area. A short break in the work was taken to allow tenants to continue working without disruption. During the lunch break, the concrete around the columns was broken up and removed. The column depth below the top of the concrete floor was approximately seven inches (to the top of the foundation pad). The foundation pad is approximately 5 feet by 5 feet and foundation pad thickness is 2 plus feet.
Crews arrived on the job site at 7:00 a.m. the following day and returned all of the rental equipment. A call was made to order concrete to arrive at 1:00 p.m. At 8:00 a.m., we started applying the primer with a paint brush to the north column. At 8:21, we started applying the Tac-coat with a plastic 8” putty knife. At 8:40 a.m. we started wrapping the carbon fiber (33” H x 8’ L) to the Tac-coat and then applying the saturation coat with a small paint roller on top of the carbon fiber material. Once the satu-ration coat was applied, we broadcast small rock to the epoxy to give the stucco a surface to bond with. We finished the north column at 9:05 a.m. and then moved to the south column. At 9:15 a.m., we applied the primer and at 9:30 a.m., applied the Tac-Coat. At 9:55, the carbon fiber (4’H x 8’L) and the saturation coat, then small rock. The south column was completed at 10:17 a.m.
At this point, we set 1/2” rebar dowels in the slab surrounding the columns and then cleaned up the broken out concrete around the columns and hauled off to Simon Contractors for recy-cling. At 1:00 p.m. the 6 sac, 4,000 psi concrete arrived and we poured and finished the concrete around the columns. We built a curb by the block wall by the north column. At 2:30 p.m., we took down the shoring posts and loaded the truck for demobilization.