5. Figure 1 shows the results of the proctor test on soil B (poorly graded sand). When compared with figure 1 below, determine the assumptions of soil classification for question number 2 (compacting task), include reasons! Dry Unit Weight (kN/m3) 20 18 16 H 12 10 O 10 15 Water content (%) 20 25 30 Figure 1. Standard proctor compaction results

5. Figure 1 shows the results of the proctor test on soil B (poorly graded sand). When compared with figure 1 below, determine the assumptions of soil classification for question number 2 (compacting task), include reasons! Dry Unit Weight (kN/m3) 20 18 16 H 12 10 O 10 15 Water content (%) 20 25 30 Figure 1. Standard proctor compaction results

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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2b. The following data was obtained from Sieve Analysis conducted at a Soil Lab. Using the data given in Table 02 determine: Table 02: Sieve analysis data of coarse-grained soil i. ii. iii. + Sieve Opening (mm) 20 10 4.75 2.36 1.18 0.6 0.3 0.15 0.075 Pan Mass of Soil Retaining on each Sieve (g) 5.21 20.21 180.21 360.21 280.11 70.11 50.21 17.21 10.11 8 Percentage of clay, silt, sand and Gravel in the soil sample Uniformity coefficient and coefficient of curvature Classify the soil according to BS soil classification system
Table 1 below is the result of compaction results. Please evaluate the correct combination of missing data. Table 1: Compaction test results Water content (%) 5.00 8.00 III 16.00 IV Bulk Density (Mg/m') 1.87 II 2.35 2.20 2.09 Dry Density (Mg/m) 1.89 2.08 1.90 1.76 Answer II II IV A 1.68MG/m3 2.04Mg/m3 13% 19% 1780kg/m 2.08Mg/m3 11% 20% 1.80MB/m3 2080kg/m 12% 19% 1.78MG/m3 2040kg/m3 13% 19% O A Ов Ос O D
8. The results of a standard compaction test on a soil sample from Glasgow are shown in the graph below. From the graph, determine the optimum moisture content (OMC), maximum dry density and air content at maximum dry density. Can this soil be compacted to 2.11 Mg/m³ at OMC? Why? 22 0% 2.1 5% 2 10% 1.9 1.8 1.7 1.6 1.5 1.4 1.3 - 1.2 8 9 10 11 12 13 14 15 16 17 18 19 moisture content [%] 20 dry denslty [Mg/m³]
Q1: Use the USCS to Classify the soil sample with the following data: % passing 4.75 mm Sieve = 64 % passing 75- Sieve =4 Uniformity Coefficient= 7.5 Coefficient of Curvature=2.7 Plasticity index = 2.5 Solution: Q2: Use the USCS to Classify the soil samples with the following data dalla Soil LL PL Group Symbol Soil Name 15 35 25 ABC 8. ८८ 25 45 65 2-Seepage velocity (m/s) = 70 3- Flow rate in (m3/s) = oss and dry ng www Parmbly & volume change decrease Campering wes Toughness and dry strength dease Presby & val change in 10 20 30 40 50- 60 Liepakt. 70 80 Atra -0.73 (W₂-201 90 Q3: For the soil shown below the hydraulic conductivity is (3 m/day). The sample diameter is 1.5 m. The porosity is (30%). Find: 1- Flow velocity (m/s)== 100 110 120 Soil 4 m ITE
Following are the results of a field unit-weight determination test performed on the same soil by means of the sand cone method: -Calibrated dry unit weight of Ottawa sand = 15.4019 kn/m3 -Calibrated weight of Ottawa sand to fill the cone = 5.3496 N -Weightof jar + cone + sand (before use) = 74.451 N -Weightof jar + cone + sand (after use) = 46.886 N -Weight of moist soil from hole = 29.509 N -Moisture content of moist soil = 10.21% DETERMINE AND SHOW COMPLETE SOLUTION 1. Dry density of compaction in the field in kg/cu.m.
P2, 5.4 List the given, required, graph and box the final answer.
Table 1 below is the result of compaction results. Please evaluate the correct combination of missing data. Table 1: Compaction test results Water content (%) 8.00 III IV Bulk Density II 2.35 2.09 (Mg/m³) Dry Density (Mg/m³) 1.89 2.08 1.76 || A B Answer A B с D I 5.00 1.87 I 1.68Mg/m³ 1780kg/m³ 1.80Mg/m³ 1.78Mg/m³ 2.04Mg/m³ 2.08Mg/m³ 2080kg/m³ 2040kg/m³ III 13% 11% 12% 13% 16.00 2.20 1.90 IV 19% 20% 19% 19%
SG is 2.66 and temperature is 18 degrees celcius
The following data are the results of a sieve analysis. Determine the percentage of silt and clay combined using Unified Classification System. Mass of soil Sieve no. Opening retained (mm) on each sieve 4 4.75 21.5 10 2 18.5 20 0.85 53.2 40 0.425 90.5 60 0.25 81.8 100 0.15 92.2 200 0.075 58.5 Pan 26.5 Select one: а. 19 b. none of the choices С. 6 d. 17 e. 58
The results of a compaction test on the sample of soil that are to be listed are to be used for an embankment on a highway project are listed below . Determine the maximum dry unit weight of compaction and the optimum moisture content. The table is shown in image
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