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  • Users: Max93
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  1. Max93

    QCQA for Roads - alpha, should the LSL, and engineering limit be a mean value? Or adjust?

    Hi, I am doing a QC/QA analysis for road state department I'm at for my internship. But I've hit a key stumbling block. The minimum 'engineering limit' strength is 2900 psi. The "LSL" is 3900 psi. However my understanding is that the LSL should be a minimum *mean* value for a lot - whereas in...
  2. Max93

    Engineering standard to determine if DOT has been under/over testing highway during construction

    Hello everyone, I have been given the task of determining whether the DOT I work for has been under/over testing a highway section. I have been referred to Standard E122-09, however this appears to be a standard to determine appropriate sample size to determine a mean based on a single lot...

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