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A site foreman told me my concrete cure logs were useless. He was right.
I was tracking every pour on spreadsheets with air temp and humidity. He said nobody cares about that data unless I also record the concrete temp in the truck and the wind speed at the site. Started adding those two fields last month and now I can actually predict why some slabs crack and others don't. Any of you guys track wind speed on pours?
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kaip1110d ago
...and it was the Purdue study that finally got me to start tracking wind after years of ignoring it. Makes total sense now. Air temp and humidity alone don't tell you much if the wind is sucking all the moisture off the surface. I noticed my worst cracking always happened on breezy days but I never connected the dots until I saw those numbers. Now I keep a little anemometer in my truck, clip it to the rebar, and record wind speed every 30 minutes during the pour and for the first 4 hours after. Makes a huge difference in how I plan finishing timing.
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emmam6710d ago
Did you read that study from Purdue about wind speed being the biggest factor in slab curling?
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