Took me 6 months to figure out why my air pockets kept blowing up on a large pour
Had a job outside El Paso in July, 80 yard slab for a warehouse floor. We were getting these air pockets showing up in the finish about every other pour, not huge but enough that the inspector flagged them twice. I blamed the mix, blamed the weather, blamed my crew. Finally after 3 failed sections and a lot of lost time, I realized it was the vibrator settings. We were running them at full throttle like we always do, but with this particular mix and the heat, it was trapping air instead of releasing it. Dropped the speed by half and slowed down our passes. Problem gone in one day. Has anyone else had to change their vibrator approach for the summer heat, or was it just me?