Problem 2 (not connected to Problem 1 You are reviewing data from lab and field testing for a compacted fill. The results of a set of Standard Proctor laboratory compaction tests are listed in Table 1. These tests were performed using a 4-inch diameter mold having a total volume of 1/30 ft3. Note that the data for this problem is available in spreadsheet form on iLearn. Use the soil weight and total weight to determine the water content and dry unit weight of each test point. You may use a spreadsheet and just show one sample calculation, if you wish. a. b. Plot the Standard Proctor test points on a dry unit weight vs. water content plot c. Sketch or draw the Standard Proctor curve and determine the maximum dry unit weight and optimum water content for this soil. Plot the S-100% or zero air voids curve on your plot, assuming G,-279 d, Table 1. Laboratory Standard Proctor test data for Problem 2 Weight of Dry Soil, Total Weight of Test point Ws (lb 3.86 4.02 4.08 3.92 3.75 Moist Soil, W. (Ib) 4.19 4.45 4.58 4.49 4.36 4 The compaction specification for this project states that the fill must achieve a relative compaction of at least 98% based on Standard Proctor and the compaction water content must be within +/-2% of the optimum value. You are also provided with the data for 25 field quality control tests on the compacted fill. These test results are listed in Table 2. In order to evaluate the fill compaction, perform the following tasks Plot these points on the graph with your Standard Proctor curve. What percentage of the field tests failed to meet the specification? Why? e. f. Table 2. Field test data for Problem 2 Test # Test # 13 12.8 12.4 1.5 12.9 12.2 12 12.4 13.1 13.2 12.9 11.8 0.5 122.6 122 125.9 125.3 122.7 125.1 125.1 124.6 123.4 123.1 124.7 125.2 126 11.3 11.7 11.7 11.2 11.3 12.2 13.2 12.9 12.6 13 11.4 0.5 125.8 124.7 124.8 122.4 122.7 124.4 16.9 118.3 120.7 119.9 15 l6 17 4 6 7 19 20 21 9 10 23 24 25 12 13 For HW#3 attach at least the following Dry unit weight vs. water content plot for questions 2a to 2e. Supporting example calculations