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Switched from a 3/4 inch magnesium float to a 1 inch aluminum one on a big slab in Phoenix
The finish on that 40 yard pour went from good to perfect, with way less effort. The extra weight and width of the aluminum float closed up the surface bleed water faster in that dry heat. Anyone else made a simple tool swap that gave you way better results?
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garcia.mila2d agoTop Commenter
Wait, you really think the extra weight is a good thing? I've found aluminum floats can actually seal the surface too fast in dry heat. You trap bleed water underneath and that leads to delamination later. On my last Phoenix pour, a lighter magnesium float let the water come up and evaporate properly. The finish looked perfect right then, but yours might not hold up.
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jamesc791d ago
Funny you mention Phoenix pours. Had a buddy out there who swore by magnesium floats, right up until his whole slab spiderwebbed. Maybe beng51's hammer test would've caught it.
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Ever check for delam by tapping the surface with a hammer later? I've seen that trapped water cause issues.
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