PSA: Learned the hard way that a 6 inch slump mix in 95 degree heat in Phoenix will flash set on you in about 12 minutes

Grant Martinez · 2026-10-08T00:40:02.881037+00:00

Watched a guy on a job off Camelback lose half a truck pour to a cold joint and he just shrugged and said the mix was supposed to buy him 30 minutes, so now I always ask the plant for the actual set time instead of trusting the ticket, anyone else get burned by this in the summer?

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PSA: Learned the hard way that a 6 inch slump mix in 95 degree heat in Phoenix will flash set on you in about 12 minutes | Concrete Finishers - Chatter Central