Given the laboratory results of the Atterberg Limits Test in the following figure, plot the water content versus the number of blows.
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- Given the laboratory results of the Atterberg Limits Test in the following figure. Plot the water content versus the number of blows. Determine the nearest value to the Liquidity Index of the soil. Figure 15 A. Liquid Limit Test Number-> Number oi BlowNS Weight of Wet Soil +Container, g Weight of Dry Soil + Corntainer, g Weight of Container, g Weight of Water, a Weight of Dry Soil g Water Content, % 38 22:47 19.44 12.74 29 21.29 18.78 13.24 20 21.27 18.75 13.20 14 26.12 22.10 13.27 B. Plastic Limit and Natural Water Content Plastic Limit Natural Water Content 1 Test Number > Weight of Wet Soil +Container, g Weight of Dry Soil + Container, g Weight of Container, g Weight of Water, g Weight of Dry Soil, g Water Content, % Average, % 23.20 20.42 72.90 22.80 20.19 12.95 17.53 14.84 9,50 16.97 14.36 9.55 O 0.8 O 1.8 O 0.5 O 1.2Given the tabulated data for an Atterberg Limit Test. A. LIQUID LIMIT Test Number No. of blows Weight of Wet soil + container 22.24g 21.19g Weight of Dry soil + container 20.10g| 19.28g Weight of Container 1. 2 39 30 12.74g 13.24g . Test Number No, of blows Weight of Wet soil + container 21.27g 26.12g Weight of Dry soil + container 19.25g 22.60g Weight of Container 3 4 23 12 2/2 13.06g 13.27g B. PLASTIC LIMIT Test Number 2 Weight of Wet soil + container 22.12g 21.84g1 Weight of Dry soil + container 20.42g 20.19g Weight of Container 13.07g 13.18g C. NATURAL WATER CONTENT Test Number 1 2 Weight of Wet soil + container 17.53g 16.97g Weight of Dry soil + container 14.84g| 14.36g Weight of container 7.84g 7.50g a. Compute the liquid limit. b. Compute the plastic limit. c. Compute the natural water content. d. Compute the plasticity index. e. Compute the liquidity index76 .ll Q3.png The data from standard and modified proctor test on a soil sample (density of solids: 2680 kg/m3 ) are provided below: Standard proctor test Modified proctor test Dry density (kg/m) 1691 Dry density (kg/m') 1873 Water content (%) Water content (%) 9.3 9.3 1715 11,8 1910 12.8 1755 14.3 1803 15.5 1747 17.6 1699 18.7 1685 20.8 1641 21.1 1619 23 a) Plot the compaction curves (both standard and modified in one graph). b) Establish the maximum dry density and optimum water content for each test.
- Problem C: For Questions 12 to 15. Following are the results from the liquid and plasticlimit tests for a soil. Liquid Limit Test Number of Moisture Blows,N Content (%) 16 42.150 20 40.775 28 39.115 12) From the flow curve what is the liquid Limit ? a) 39.683% b) 40.555 % c) 38.992 % d) 39.875 % 13) If the Plasticlimit is 18.750 % what is its plasticity index? a) 22.431 % c) 21.344 % b) 20.918 % 14) If in-situ moisture content is 31% determine its liquidity index ? c) 0.585 d) 20.819 % a) 0.665 b) 1.59 15) If the percentage of clay-size fraction is 4.831. Based on its Activity,this mineral is more likely to be a) Illites b) kaolinite d) 20.588 c) Attapulgite d) SmectitesIII. Using Atterberg's Plasticity Determination Method Determinethe following; a) Plot the Flow Curve and b) Determine the Flow Index c) Computethe Liquid Limit d) and if the Plastic Limit wa. uetermined as PL = 17.545 % what is the Plasticity Index ? Number of Blows Moisture Content,% 15 38.589 20 35.712 29 28.556 32 24.670Problem Set 4 2. The following data were obtained from the liquid and plastic limit tests for a soil: Liquid Limit Test: Moisture content, w% 32.35 31.55 31.35 33.62 33.00 Number of blows, N 22 29 32 16 19.00 Plastic Limit Test: Moisture content = 20.62% 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 the soil?
- Required Coefficient of permeability Falling head permeability test is carried out on a soil specimen having cross-sectional area of 60 sq.cm and height of 15 cm. The water level in the stand pipe of diameter of 0.7 cm drops from 90cm to 30 cm in half an hour. What is the coefficient of permeability (cm/s)?Problem A liquid limit test conducted on a soil sample in the cup device gave the following results: N 10 19 23 27 40 w (%) 60.0 45.3 39.8 36.5 25.2 The plastic limit test and natural water content. Plastic Limit Natural Water Content Test Test No. Weight of Container + Lid (g) 2 1 2 13.07 13.18 7.84 7.5 Weight of Container + Lid + Wet Soil (g) 22.12 21.84 17.53 16.97 Weight of Container + Lid + Dry Soil (g) 20.59 20.35 15.45 14.93 The shrinkage limit test. Weight of Dish with petroleum jelly (g) Weight of Dish with petroleum jelly+ Wet Soil (g) Weight of Dish with petroleum jely + Dry Soil (g) Volume of Shrinkage Dish (cm³) Volume of Oven-Dried Soil Pat (cm?) 11.3 38.51 32.81 15.26 12.83 8. Determine the liquid limit. b. 39% 9. Determine the plastic limit. a. 38% C. 37% d. 40% b. 21.20% 10. Determine the shrinkage limit. 20.55% C. 21.85% d. 20.20% a. a. 15.20% b. 22.40% C. 18.59% d. 16.45%5. A permeameter of 8 cm diameter contains a sample of length 35 cm. Attachments are made it to enable conducting either constant head test or falling head test. The stand pipe used for conducting falling head test has a diameter of 2.5 cm. When constant head test was conducted the loss of head was 100 cm measured on a length of 25 cm. If the rate of flow was 2.7 cc/sec, calculate the coefficient of permeability of soil. If a falling head test is conducted on the same sample in the permeameter find the time taken for head to fall from 150 cm to 100 cm.
- The following results are obtained for a liquid limit test using a fall cone device. Cone Moisture penetration, d (mm) content (%) 13 26.3 19 31.9 26 39.3 31 42.6 Estimate the liquid limit of the soil and the flow index. For estimating the flow index use wi and w4. Round your final answers to three significant figures. LL IFCA liquid limit test conducted on a soil sample in the cup device gave the following results: N 10 19 23 27 40 w (%) 60.0 45.3 39.8 36.5 25.2 The plastic limit test and natural water content. Natural Water Content Test Test No. Weight of Container + Lid (g) Weight of Container + Lid + Wet Soil (g) Weight of Container + Lid + Dry Soil (g) Plastic Limit 2 2 13.07 13.18 7.84 7.5 22.12 21.84 17.53 16.97 20.59 20.35 15.45 14.93 The shrinkage limit test. Weight of Dish with petroleum jelly (g) Weight of Dish with petroleum jelly + Wet Soil (g) Weight of Dish with petroleum jelly + Dry Soil (g) Volume of Shrinkage Dish (cm³) Volume of Oven-Dried Soil Pat (cm³) 11.3 38.51 32.81 15.26 12.83 27. Determine the liquid limit. b. 39% 28. Determine the plastic limit. а. 38% С. 37% d. 40% a. 20.56% b. 21.20% C. 21.85% d. 20.20% 29. Determine the shrinkage limit. b. 22.40% а. 15.20% C. 18.59% d. 16.45%SITUATION 2 For a variable head permeability test, the following data were given: Length of specimen= 37.5 cm; · Area of specimen= 19.4 sq.cm. Coefficient of permeability= 0.002912 cm/sec. Determine the following: (a) What should be the area of the standpipe for the head to drop from 63.5 cm to 30.5 cm in 8 minutes? (b) if the viscosity of water is 0.0911 x10 -4 g-sec/sq. cm, find the absolute permeability of the soil. (c) If the soil is classified as a uniform sand, determine the effective size particle size e C= 1.0