4. The following data were obtained from the liquid and plastic limit tests for a soil: Liquid Limit Test: Number of blows (N) Molsture content (%) a) Draw the flow curve from the liquid limit test data and find the liquid limit. (use excel to graph) b) What is the plasticity index of 17 42.1 38.2 22 27 32 36.2 34.1 Plastic Limit Test: Moisture content = 21.3% the soil?

A sample of soil was tested in the laboratory, and the test results were listed as follows. Classify the soil by both the AASHTO and the USCS. - LL = 29%, PL = 19% Sieve Size 1 in 3/4 in 3/8 in #4 #10 #40 #200 Percent Passing 100 90 82 70 65 54 25

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