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  1. unbiased

    Water affecting concrete strength

    Thanks everyone. I will get the cubes tested for a more accurate view of what is going on and get back to yourselves.
  2. unbiased

    Water affecting concrete strength

    The mix was 1:2:4 and it was used for a suspended floor slab and beam. It was tested using a schmidt hammer and the strength gotten was 12N as opposed to 25N expected.
  3. unbiased

    Water affecting concrete strength

    There was no fly ash specified. Just the basic conrete mix. I am trying to trace the reason for the low strength of the cubes taken. The water seems to be the only logical culprit.
  4. unbiased

    Water affecting concrete strength

    I have a project in which the concrete mix was done manually. The strength ahieved was 12N as opposed to 24N after 28days. Could the water used in the mix be the problem (Sulphur contamination)

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