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  • IjazzGul
    Participant
      October 6, 2012 at 1:32 pm #3075

      which grade of concrete using for post tensioning Slab and within howmany days we can get the required strength for strerssing. If it's not possible to get the enough compressive strength within 3 days,shall we add any admixture in concrete to get strength quickly.

      Decipher
      Participant
      Posts: 46
        May 19, 2013 at 3:53 pm #3385
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        c45 or c50 grade of conc is much better, were if u see the intial stressing should be done approx after 12 hours but final stressing should be counter act with conc results, which according to my exp will reach in 72 hours approx. I dont think we need to add in any admixture unless its a very special case.