A proctor compaction test has been performed on a soil that has Gs = 2.70. The test results were asfollows:TestMass of the compactedMoisture content Test ResultsNo.moist soil + MoldMass of canMass of canMass of can(kg)(g)and moist soiland dry soil(g)205.74194.20(3)196.3313.67322.1223.7983.92723.8419.75180.54177.92165.713196.2443.98320.04187.4353.93221.98199.59171.11Mass of the mold = 1.95 kgVolume of the Mold = 0.000944 m³a) Determine the maximum dry unit weight in KN/mb) Determine the optimum moisture contentc) Determine the degree of saturation at optimum moisture contentd) Determine the percentage compaction if the in-situ dry unit weight is 17.9 KN/m³

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Answered: A proctor compaction test has been…

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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Problem 4: A balloon-type apparatus is used to determine an in-place unit weight for a soil (field density test). The volume of the test hole is 0.000708 cu.m. The weight of the soil obtained from the test hole is 1410 g. The soil sample was dried on a field stone and weighs 1235 g. 1. Compute the water content of the tested soil. 2. Compute the in-place dry unit weight of the tested soil. 3. Determine the $ of compaction for the test result if the soil is part of a compacted carth fill whose maximum unit weight (from laboratory compaction tests) is 18.67 KN/m³.
A Standard Proctor test was performed on a clayey gravel soil; the test results are shown below. Find the degree of saturation at the optimum condition; assume that G; = 3.60. Test 1 2 3 4 5 6. 7 w% 3.00 4.45 5.85 6.95 8.05 9.46 9.90 1.94 2.01 2.06 2.09 2.08 2.06 2.05 ya kN/m? 19.4 20.1 20.6 20.9 20.8 20.6 20.5 Use Yw = 10 kN/m° for simplicity.
Question 1 (a) Based on your understanding, briefly elaborate the different between residual soil and transported soil. (b) An undisturbed cylindrical soil sample is 0.060 m in diameter and 0.155 m long. It has a total mass of 0.82 kg. The specific gravity of the soil is 2.7. After finding the mass of the entire sample, a small portion was removed and a moisture content test was performed on the sample. The results of this moisture content test on the subsample were mass of moist soil = 102.96 g and mass of dry soil = 90.71 g. Determine the following: Moisture content i. Wet unit weight Void ratio ii. ii. (c) A series of laboratory compaction test performed using the Standard Proctor Test procedure, the moisture content tests were further performed by taking out small portions of compacted soil and the result obtained are as shown in Table Q1 (c): Table Q1 (c) Volume of Proctor Mass of compacted Mass wet soil sample (g) Mass dry soil sample mold (m) soil (g) (g) 0.00095 1704 183.64…
1. The results of a standard Proctor test are given in Table Q1 below. Determine the maximum dry density of soil compaction and the optimum moisture content. Table Q1 Volume of Proctor Mass of wet soil in the mold Moisture content mold (cm³) (kg) 3.39 (%) 11.5 987 987 3.87 13.5 987 4.22 15.5 987 5.11 17.5 987 4.75 19.5 987 4.31 21.5
The following data were obtained from sand-cone experiment where a volume of a certain soil is replaced with a sand in order to find the density of the soil. Density of sand used in test = 1.3 g/cc Wt. Of soil excavated from the pit = 925 g Wt. of sand filling the pit = 675 g Water content of natural soil = 15% Specific gravity of Solid = 2.7 a) Determine the wet density of the soil in g/cc. b) Determine the dry density of the soil in g/cc. c) What is the porosity of the soil?
76 .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.
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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.
In a standard proctor test, 3.2 kg of moist soil was filling the mould of volume 944 cc after compaction. A soil sample weighing 40 gm was taken from the mould and oven dried for 24 hours at a temperature of 110°C. Weight of dry sample was found to be 34 gm. Specific gravity of soil solids is 2.5. The theoretical maximum value of the dry unit weight of soil at that water content is equal to
In a hydrometer test, the results are as follows: Gs=2.55 Temperature of water=25 degree Celsius, and R=41 at 2 hours after the start of sedimentation. What is the diameter, d, of the smallest-size particles that have settled beyond the zone of measurement at that time? Please answer this asap
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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