Laboratory compaction test results on a clayey soil are listed in the table below.Moisture content (%) Dry unit weight (kN/m³)614.80817.45918.521118.91218.51416.9The following are the results of a field unit weight determination test on the same soil with the sand cone method:Calibrated dry density of Ottawa sand = 1,560 kg/m³Calibrated mass of Ottawa sand to fill the cone = 0.565 kgMass of jar + cone + sand (before use) = 7.59 kgMass of jar + cone + sand (after use) = 4.78 kgMass of moist soil from hole = 2.85 kgMoisture content of moist soil = 15.2%Determine:a. Dry unit weight of compaction in the field.(Enter your answer to three significant figures.)Ya =]kN/m³b. Relative compaction in the field.(Enter your answer to two significant figures.)R =|%

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Laboratory compaction test results on a clayey soil are listed in the table below. Moisture content (%) Dry unit weight (kN /m³) 14.80 17.45 9 18.52 11 18.9 12 18.5 14 16.9 The following are the results of a field unit weight determination test on the same soil with the sand cone method: Calibrated dry density of Ottawa sand = 1,560 kg/m³ Calibrated mass of Ottawa sand to fill the cone = 0.565 kg 6,

Laboratory compaction test results on a clayey soil are listed in the table below. Moisture content (%) Dry unit weight (kN /m³) 14.80 17.45 9 18.52 11 18.9 12 18.5 14 16.9 The following are the results of a field unit weight determination test on the same soil with the sand cone method: Calibrated dry density of Ottawa sand = 1,560 kg/m³ Calibrated mass of Ottawa sand to fill the cone = 0.565 kg 6,

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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The following data represent the results obtained from the specific gravity (S.G.) test performed in a soil laboratory including twenty sand samples. The value of mode is 2.65. * Specific Gravity Number of Samples 2.30-2.39 1 2.40-2.49 2.50-2.59 2.60-2.69 2.70-2.79 2.80-2.89 1 47
3. The following are the results of a field unit weight determination test performed on the soil by means of the sand cone method. Calibrated dry density of Ottawa sand = 1570 kg/m³ Calibrated mass of Ottawa sand to fill the cone = 0.545 kg Mass of jar + cone + sand (before use) = 7.59 kg Mass of jar + cone + sand (after use) = 4.78 kg Mass of moist soil dug from hole = 3.007 kg Water content of moist soil = 10.2% Max dry unit weight = 19 kN/m³ a. Determine the moist unit weight of compacted soil in kN/m³. b. Find the dry unit weight in kN/m³. c. Compute the relative compaction in the field.
The data in the table below was gotten from modified Proctor test for a soil sample having Gs=2.62 19 1 14 12 10 (%) w 23 0.92 0.88 0.83 0.94 1.07 1.15 e What is the degree of compaction if the field dry unit weight is 13.2 kN/m³ and field ? moisture content is 9% .a 71.3% .b 94% .C 80% .d 100%
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.
Question 9 Three samples of loose sand were tested under consolidated undrained (CU) conditions. The failure stresses and excess pore water pressure for the soil sample is given below: Cell Pressure = 201 kPa Deviator Stress = 127 kPa Pore Water Pressure = 95 kPa Determine the drained angle of inclination of failure plane in degrees. Round off to two decimal places.
SG is 2.66 and temperature is 18 degrees celcius
Answer 4.8
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1. A dry sand is placed in a container having a volume of 0.0092 cubic centimeter. The dry unit weightof the sample is 0.015 gram. Water is carefully added to the container so as not to disturbed thecondition of the sand. When the container is filled, the combined weight of soil plus water is 0.0182gram.a. Determine the specific gravity of soil particle.b. Determine the dry unit weight of soil.2. If the soil sample has a water content of 11% and a unit weight of 19.67 kN/m3 , determine thepercentage of air in voids and the degree of saturation if the specific gravity of soil solid is 2.75.3. If the soil sample has a specific gravity of 2.71 and a porosity of 0.345, determine the saturated unitweight and the bouyant unit weight.4. A soil sample having a liquidity index of 0.85, a plasticity index of 16.50 and a plastic limit of 11.45.The soil sample has a specicfic gravity of 2.68 and a void ratio of 0.77.a. Compute the degree of saturation.b. Compute the air void ratio.