~ /A

Solution Grain size distribution curves of samples A, B, C and D are given in Fig. Ex. 3.21. The values of C

and C c

are obtained from the curves as given below.

Sample 0 10 0 30 0 60 Cu Cc A 0.47 3.5 16.00 34.0 1.60 B 0.23 0.30 0.41 1.8 0.95 C 0.004 0.036 2.40 600.0 0.135

SampleA: Gravel size particles more than 50%, fine grained soilless than 5%. C u

' greater than 4, and C

c lies between 1 and 3. Well graded sandy gravel classified as GW.