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Old timer on a job in Boise told me to wet the subgrade before pouring and I thought he was crazy

He just said 'son, dry ground sucks the moisture right out your mix and you'll be fighting cracks all week' and I brushed him off until I had to demo a section three days later that looked like a spiderweb, has anyone else had a random old school tip that ended up being completely right?
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elizabeth_williams
Honestly used to think old concrete guys were just set in their ways but that moisture thing is real. Tbh I've seen too many slabs turn into a mess because the ground pulled all the water out before it could cure right. Ngl that little tip saved me way more headaches than I would've guessed.
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webb.jordan
Yeah I was the same way honestly. Figured it was just old timer superstition until I had to bust up a slab that crumbled because the dirt sucked the moisture right out of it. That's when it clicked for me too.
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