Ethio Construction Engineering
The coefficient of uniformity (Cu) and coefficient of curvature (Cc) for a well graded sand should be
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Cu must be greater than 4 and Cc must be between 1 and 3
Cu must be greater than 6 and Cc must be between 1 and 3
Cu must be greater than 2 and Cc must be equal to 1
Cu must be less than 2 and Cc must be greater than 1
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