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  1. magee913

    Heat of Hydration

    can anybody point me into the right direction of how to estimate the maximum temperature experienced during curing?
  2. magee913

    Concrete breaks much higher than design strength

    Hello all, below is my mix design cement type I/II = 548 lb /cyd Class F fly ash = 137 lb/cyd fine aggr = 1269 lb/cyd coars agg = 1680 lb/cyd water = 242 lb/cyd air = 5-7% slump 7" W/c = 0.35 The batch plant had to design the concrete for 5200 psi based on ACI 214 table 4.2. Insuffucient...
  3. magee913

    ASR Mitigation in Concrete

    Hello, I am currently a field engineer and we are pouring foundations in which the the supplier is using 20% class f fly ash to mitigate ASR. THe back up plan is to use lithium nitrate. Currenly their mix will use 542 lbs cement and 141 lbs class f fly ash. In the case of the back up plan...
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