Maximum and minimum void ratios of a sand sample were determined in the laboratory to be 0.9 and 0.3, respectively. If the void ratio of another sample of the same sand is found to be 0.53, calculate the relative density of the second sand sample. (Type your answer as a percentage %)

Following results are obtained for a liquid limit test using a fall cone device. Estimate the liquid limit of the soil and the flow index.

Refer to the soil in Problem 4.5. Using the Casagrande plasticity chart, graphically estimate the shrinkage limit of the soil as shown in Figure 4.22. 4.5 The following data were obtained by conducting liquid limit and plastic limit tests on a soil collected from the site. Liquid limit tests: Plastic limit test: PL = 19.3% a. Draw the flow curve and determine the liquid limit. b. Using the Casagrande plasticity chart (Figure 4.21), determine the soil type.

The following data were obtained by conducting liquid limit and plastic limit tests on a soil collected from the site. Liquid limit tests: Plastic limit test: PL = 19.3% a. Draw the flow curve and determine the liquid limit. b. Using the Casagrande plasticity chart (Figure 4.21), determine the soil type.