Question
Download Solution PDFIf the uniformity coefficient Cu = 4 and coefficient of curvature Cc = 1 for a soil, then D30/D10 for the soil is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Coefficient of uniformity \(= \frac{{{D_{60}}}}{{{D_{10}}}}\)
Coefficient of curvature \(= \frac{{D_{30}^2}}{{{D_{60}}\; \times \;{D_{10}}}}\)
Calculation:
CU = 4, Cc = 1
\({C_U} = \frac{{{D_{60}}}}{{{D_{10}}}} \Rightarrow 4 = \frac{{{D_{60}}}}{{{D_{10}}}} \Rightarrow {D_{60}} = 4\;{D_{10}}\)
\({C_c} = 1.6 \Rightarrow \frac{{D_{30}^2}}{{{D_{60}}\; \times \;{D_{10}}}} = 1 \Rightarrow \frac{{D_{30}^2}}{{4\;{D_{10}}\; \times \;{D_{10}}}} = 1\)
\(\Rightarrow \frac{{D_{30}^2}}{{D_{10}^2}} = 4 \Rightarrow \frac{{{D_{30}}}}{{{D_{10}}}} = \sqrt {4} = 2\)Last updated on Jun 13, 2025
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