Overheard a guy at the supply yard, made me rethink my power trowel blades

Standing in line at A-1 Concrete Supply in Des Moines yesterday, this old timer told the counter guy he only runs steel pans on fresh slabs, never during the burn. I always just threw them on whenever the surface felt close, and last month I burned a 2,400 square foot garage floor in 20 minutes. He said it's about heat buildup, not just timing. Has anyone else switched to finishing blades for the final pass only?

1 comments

1 Comment

ward.jamie11d ago

Damn, that heat theory makes total sense. Steel pans trap way too much friction early.