TIL scraping my trowel clean every 15 minutes saves me from bad finish lines

I used to just keep working and let concrete build up on my trowel until it was caked. Then last Tuesday I was finishing a 40 yard slab in Austin and the texture was coming out all rough and uneven. Foreman walked over, told me to scrape it down every 15 min, and handed me a bucket of water. Night and day difference. The finish came out glassy instead of wavy. How often do you guys clean your tools mid-pour?

2 comments

2 Comments

jade_singh1mo ago

Yeah I read somewhere that letting concrete dry on your trowel basically turns it into sandpaper, which explains why my edges always looked like trash before. Someone on a finishing forum said they keep a spray bottle with water and dish soap, spritz it every few minutes, and the concrete slides right off. Tried it on my last small patio job and it worked way better than just a bucket, actually got a smooth finish without fighting the tool the whole time.

tessa_clark741mo ago

Three years ago I scraped a trowel so rarely that the concrete crust was practically a second handle. Ended up with a finish that looked like my driveway got in a fight with a cheese grater. Now I keep a 5 gallon bucket nearby and scrape every ten minutes like my life depends on it. Makes me feel like a real professional instead of just some guy who owns a trowel by accident.