From a soil gradation curve, it is estimated that D10=0.2mm, D30=0.9mm, D60=4mm. What is the coefficient of curvature for this soil sample?

7. The LL and PL of a soil sample were determined to be 53.2 and 33.7, respectively. Classify the soil sample according to the AASHTO system and determine its group index if: % passing #200 = 56.3 % passing #40 = 68.9 % passing #10 = 89.2

A soil sample is of 300 cc volume having void ratio 0.6. Calculate the weight in the given soil sample if specific gravity of solid is 2.7 506.25 gm 187.5 gm 256.94 gm 69.44 gm

Calculate K for the soil tested in the figure. Assume the cross-sectional area of the sample is 14 cm² and the area of the standpipe is 2cm². The time of test = 15 min. All dimensions shown are in mm. D 270 T 200 soil 70 580 310