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  1. prrog

    want to know about testing of concrete samples

    My 14 samples of concrete cylinders were taken in different days. I have got 14 results scattering from10.22 MPa to 18.60 MPa . Media = 14.04MPa, standard deviation is 3.2MPa. variance= 22.6%. Wnat to know if is still acceptable this concrete. Thanks
  2. prrog

    want to know about testing of concrete samples

    II have done testing in concrete ,but my samples were not the normal standard ones, I used samples of 4 inches diameter by 8 inches height. I have got results scattering from 10 MPa to 18 MPa. What is the most acceptable value, based in 14 results ? maybe more. Thank you. Paul Rogerio

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