That 90-degree day we poured a 40-yard slab for a fire station

We started at 5 AM trying to beat the heat, but by 10 it was already brutal. The mix was setting up way faster than usual, maybe 20 minutes quicker than the specs said. We had three guys on the power trowel and two just spraying water to keep the surface workable. The foreman kept yelling to keep moving or we'd lose it. We finished the final pass just as the edges started to crust over. What's the hottest day you've ever had to pour on?

3 comments

3 Comments

cora5181mo ago

That part about the mix setting up 20 minutes faster is wild. I heard a guy say once that on real hot days you can almost watch the concrete go from wet to stiff right in front of you, like it has a mind of its own. Three guys on the trowel and two spraying water sounds like a total scramble, I bet the foreman was losing it. Was the fire station still able to use the slab after all that, or did you have to patch anything later?

the_taylor1mo ago

Wait, did the concrete actually set up that much faster or did the crew just not plan for the heat? I've seen guys blame the mix when they just started late. A good foreman should know to add water or use retarder if it's that hot out.

kelly6381mo ago

That part about "watching concrete go from wet to stiff right in front of you" really stuck with me. It reminds me how so much in life has a hidden deadline you can't see coming until it's right there. Like when you leave a load of laundry in the washer too long on a humid day and it starts to smell before you even realize. Or when you're trying to get a big project done at work and suddenly everything goes from manageable to totally out of control in the span of an hour. It's like there's this invisible clock ticking on everything, and you only feel it when the edges start to crust over. Have you noticed that with other things in your life too?