Problem (6)The laboratory test data for a standard Proctor test are given below.Volume ofProctor moldMass of wet soil inthe mold (kg)Moisture conient(%)(ст3)943.3943.31.65101.7512943.31.831.8114943.316943.31.7618943.31.7020a) Find the maximum dry unit weight and optimum moisture content.b) Calculate the zero-air-void unit weights for a soil with G, =2.68 at moisture content of5, 10, 15, 20, and 25%. Plot a graph of Yrav versus moisture content.

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Problem (6) The laboratory test data for a standard Proctor test are given below. Volume of Mass of wet soil in the mold (kg) Proctor mold Moisture conient (%) (ст3) 943.3 943.3 1.65 10 1.75 12 943.3 1.83 1.81 14 943.3 16 943.3 1.76 18 20 943.3 1.70 a) Find the maximum dry unit weight and optimum moisture content. b) Calculate the zero-air-void unit weights for a soil with G, =2.68 at moisture content of 5, 10, 15, 20, and 25%. Plot a graph of Yrav versus moisture content.

Problem (6) The laboratory test data for a standard Proctor test are given below. Volume of Mass of wet soil in the mold (kg) Proctor mold Moisture conient (%) (ст3) 943.3 943.3 1.65 10 1.75 12 943.3 1.83 1.81 14 943.3 16 943.3 1.76 18 20 943.3 1.70 a) Find the maximum dry unit weight and optimum moisture content. b) Calculate the zero-air-void unit weights for a soil with G, =2.68 at moisture content of 5, 10, 15, 20, and 25%. Plot a graph of Yrav versus moisture content.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter6: Soil Compaction

Section: Chapter Questions

Problem 6.9P

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The laboratory test data for a standard Proctor test are given below. Volume of Mass of wet soil in the mold (kg) Moisture content Proctor mold (%) (ст3) 943.3 1.65 10 943.3 1.75 12 943.3 1.83 14 943.3 1.81 16 943.3 1.76 18 943.3 1.70 20 a) Find the maximum dry unit weight and optimum moisture content. b) Calculate the zero-air-void unit weights for a soil with G, =2.68 at moisture content of 5, 10, 15, 20, and 25%. Plot a graph of Yzav versus moisture content.
The results of a Standard Proctor test are given in the following table. Moist Weight of Wet Sol Moisture Content in the mold (Ib) Trial (%) 26 4.08 28 4.12 30 4 4,18 32 Determine: 1. Maximum dry unit weight in Ib/ft^3 (4 decimal places) 2. Optimum water content in % (4 decimal places)
1. The following data shows the results of the liquid limit and plastic limit test using Casagrande cup method. Calculate the following: (Hint: Solve the moisture content of each test) a. Liquid Limit b. Plasticity Index c. Liquidity Index Liquid Limit Test: TEST NO. No. of Blows Wt. of Wet Soil + Container Wt. of Dry Soil + Container Wt. of Container Plastic Limit Test: TEST NO. Wt. of Wet Soil + Container Wt. of Dry Soil + Container Wt. of Container Natural Water Content: TEST NO. Wt. of Wet Soil + Container Wt. of Dry Soil + Container Wt. of Container 1 35 22.46 g 19.44 g 12.76 g 1 22.10 g 20.42 g 13.07 g 1 17.94 g 14.84 g 7.84 g 2 21 21.33 g 18.75 g 13.06 g 2 21.77 g 20.19 g 13.28 g 2 17.39 g 14.36 g 7.50 g 3 16 21.29 g 18.78 g 13.26 g
The laboratory test data for a standard Proctor test are given below. Find the maximum dry unit density and optimum moisture content.
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6. The results of a standard Proctor Test are tabulated as follows. Volume of Proctor Mold(ft³) Weight of Wet Soil in Mold(lb) Moisture Content(w%) 1/30 3.69 12 1/30 3.62 14 1/30 3.88 16 1/30 3.87 18 1/30 3.87 20 1/30 3.77 21 a. Determine the moist unit weight (ymoist) and dry unit weight (yd). Plot the value of dry unit unit weight (yd) versus the value of moisture content (w%) and estimate the maximum dry unit weight (ydmax) and the corresponding optimum moisture content (w%) b. Determine the void ratio at the optimum moisture content if G s = 2.68 c. Determine the degree of saturation at the optimum moisture content. Use the graph form below for plotting the compaction curve. COMPACTION CURVE D 20.5 R 20 Y 19.5 U 189 18 | 17.5 T 16.3 W 16 15.5 15 7 9 11 13 151719 212325 27293133 35 37 39 G Moisture Content (w%) T (KN/m^3)
Soil Compaction Problem: The following data were obtained from a Proctor Test: Water | 12 13 14 16 Content (%) Weight of Wet 17 18 18.7 19.3 18.9 Sample (N) The volume of the mold was 9.44 x 10-4 m³ (a) Determine the optimum water content and maximum dry unit weight (b) Plot the zero air voids line (c) Determine the degree of saturation at the maximum dry unit weight.
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SITUATION 1: The following tabulated data are results of plastic limit and liquid limit test. Plastic Limit test: Test Number Wt. of wet soil + 20.58g 21.76g container Wt. of dry soil + 19.70g 19.85g container Wt of container 11.12g 11.78g Liquid Limit test: Test Number Wt. of wet soil + container Wt. of dry soil + 4 22.31 21.12 22 89 21.95 19.15 19.21 21.18 20.30 container Wt of container 12.17 14.19 14.02 14.87 # of blows 33 28 22 17 Natural water content test: Test Number Wt. of wet soil + container Wt. of dry soll + 15.75g 15.98g 14.05g 14.25g container Weight of container 8.55g 8.12g Prepe
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TNT N 351 9:30 K/s SITUATION 1 A 100 cc mold was used to collect a wet soil sample. Its weight was found to be 200- grams. Its oven dried weight was recorded as 189- grams. Use Gs= 2.70. (a) Determine the wet unit weight of the soil in g/ cc. (b) Determine the moisture content of the soil. (c) Determine the degree of saturation of the soil in percentage. SITUATION 2 A specimen of moist soil weighing 122 g has an apparent specific gravity of 1.82. The specific gravity of the soil solids is 2.53. After the specimen is oven dried, the weight becomes 104 g. (a) Calculate the void ratio of the original mass of the soil. (b) Determine the water content of the original mass of the soil. (c) What is the dry density of the soil mass in g/cc? SITUATION 3 A soil has a bulk unit weight of 18.7 kN/ cu.m and a moisture content of 12.5%. Assume the specific gravity of soil solids to be 2.67. (a) Calculate the submerge unit weight of the soil sample in kN/cu.m.? (b) Calculate the buoyant unit weight…
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