A sand cone test has been performed in a recently compacted fill. The test resultsobtained are as follows:Initial weight of sand cone + sand = 13.51 lbFinal weight of sand cone + sand = 4.26 lbWeight of sand to fill cone = 2.12 lbWeight of soil from hole + bucket = 12.42 lbWeight of bucket = 1.21 lbMoisture content test:Mass of empty moisture content can = 23.11 gMass of moist soil + can = = 273.93 gMass of oven-dried soil + can = 250.10 gThe sand used in the sand cone had a unit weight of 81.0 lb/ft³, and the fill had amaximum dry unit weight of 121 lb/ft³ and an optimum moisture content of 11.7%, basedon the modified Proctor test. Compute the relative compaction based on the modifiedProctor test.

Relative compaction is 95.23%Explanation:

Answered: A sand cone test has been performed in…

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 6.7P

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A sand cone test has been performed in a recently compacted fill. The test results were as follows: Initial weight of sand cone + sand = 6.14 kg Moisture Content Test: Final weight of sand cone + sand = 1.94 kg Mass of empty moisture can = 23.11 g Weight of sand to fill cone = 0.96 kg Mass of moist soil + can = 273.93 g Weight of soil from hole + bucket = 5.65 kg Mass of dry soil + can = 250.10 g Weight of bucket = 0.55 kg The sand used on the sand cone had a unit weight of 12.75 kN/m3 and the fill had a maximum dry unit weight of 19.04 kN/m3 and an optimum moisture content of 11.7 % a. Compute the volume of hole b. Compute the dry unit weight of soil. c. Compute the relative compaction.
A sand cone test has been performed in a recent compacted fill. The test results were as follows: Initial weight of sand cone + sand= 6.14 kg; Final weight of sand cone + sand = 1.94 kg; Weight of sand to fill cone = 0.96 kg; Weight of soil from hole + bucket = 5.65 kg; Weight of bucket = o.55 kg. For Moisture content test the result were as follows: Mass of empty moisture can= 23.11 g; Mass of moist soil + moisture can = 273.93 g; Mass of oven-dried soil + moisture can = 250.10 g. The sand used on the sand cone had a unit weight of 12.75 kN/m3 and the fill had a maximum dry unit weight of 19.04 kN/m3 and an optimum moisture content of 11.7%. Compute the volume of the hole in m3. a.0.00249 b.0.0145 c.0.00389 d.0.00781
A sand cone test has been performed in a recent compacted fill. The test results were as follows: Initial weight of sand cone + sand= 6.14 kg; Final weight of sand cone + sand = 1.94 kg; Weight of sand to fill cone = 0.96 kg; Weight of soil from hole + bucket = 5.65 kg; Weight of bucket = o.55 kg. For Moisture content test the result were as follows: Mass of empty moisture can= 23.11 g; Mass of moist soil + moisture can = 273.93 g; Mass of oven-dried soil + moisture can = 250.10 g. The sand used on the sand cone had a unit weight of 12.75 kN/m3 and the fill had a maximum dry unit weight of 19.04 kN/m3 and an optimum moisture content of 11.7%. Compute the relative compaction. a. 96.93 b. 90.21 c. 97.21 d. 95.43
A sand cone test has been performed in a recent compacted fill. The test results were as follows: Initial weight of sand cone + sand= 6.14 kg; Final weight of sand cone + sand = 1.94 kg; Weight of sand to fill cone = 0.96 kg; Weight of soil from hole + bucket = 5.65 kg; Weight of bucket = o.55 kg. For Moisture content test the result were as follows: Mass of empty moisture can= 23.11 g; Mass of moist soil + moisture can = 273.93 g; Mass of oven-dried soil + moisture can = 250.10 g. The sand used on the sand cone had a unit weight of 12.75 kN/m3 and the fill had a maximum dry unit weight of 19.04 kN/m3 and an optimum moisture content of 11.7%. Compute the dry unit weight of soil in kN/m3. a. 15.7 b. 19.8 c. 18.7 d. 16.8
A field sand cone test is performed on a layer of compacted fill. determined that the fill soil has a maximum dry unit weight of approximately 120 pcf. Determine the relative compaction of the compacted fill. Unit weight of dry uniform of sand: 95 pcf Weight of sand to fill the cone: 1.10 lb weight of jar + cone + sand (before test): 16.5 lb Weight of jar + cone + sand (after test): 10.5 lb Weight of moist soil excavated from hole: 6.60 lb Moisture content of soil from hole: 10 %
1. Sand cone equipment is used to determine an in-place unit weight (field density test) on a compacted earth fill. Ottowa sand is used in the cone and is known to have a bulk density of 100 pcf. a. From the information given below, determine the in-place dry unit weight of the tested soil, and the water content. Soil sample dug from test hole wet weight = 4.62 lb Dried Weight of soil sample = 4.02 lb Weight of Ottowa Sand (Sand Cone) to fill test hole = 3.60 lb b. Determine the percentage of compaction of the tested soil if the laboratory moisture unit weight curve indicates a dry unit weight of 115 pcf and optimum moisture content of 13 percent.
Following are the results of a field unit weight determination test performed by means of the sand cone method:• Calibrated dry unit weight of Ottawa sand = 104 lb/ft3• Weight of Ottawa sand to fill the cone = 0.258 lb• Weight of jar + cone + sand (before use) = 13.4 lb• Weight of jar + cone + sand (after use) = 6.39 lb• Weight of moist soil from hole = 7.3 lb• Moisture content of moist soil = 11.6%Determine: Dry unit weight of compaction in the field.
three samples of loose sand were tested under consolidated undrained conditions. test results are given below undrained angle of friction = 35 deviator stress = 260 kPa pore water pressure = 30 kpa a. determine the undrained confining pressure in kPa. round off to three decimal places b.determine the drained angle of friction in degress. round off to three decimal places c. determine the drained angle of inclination of failure plane in degrees.
Sand cone equipment is used to perform a field density test on a compacted earth fill. • Soil sample dug from the test hole = 20.60 N • Dry weight of soil sample = 17.92 N Ottawa sand used to fill the hole weighs 16.05 N and is known to have a density of 15.74 kN/m3. Determine the in-place dry density of the tested soil. Answer:
Sand-cone equipment is used to determine an in-place unit weight (field density test) on a compacted earth fill. The sand used in the cone is known to have a bulk density of 15.73 kN/m3 Wet weight of soil sample dug from test hole = 2100 g Dried weight of soil sample = 1827 g Weight of sand (sand core) to fill the test hole = 1636 g a) Compute the water content. b) Compute the in-place dry unit weight of tested soil. c) Compute the percentage of compaction of the tested soil if the laboratory moisture-unti weight curve indicates a dry unit weight of 18.09 kN/m3 and a optimum moisture content of 13%.
Question 2 The result presented in Table Q2a were obtained from a consolidated drained (CD) triaxial test on a normally consolidated clay sample of 75mm height x 38mm diameter tested at a confining pressure of 50 kPa. Table Q2a. CD triaxial test result Axial strain (%) 1 2 5 10 15 Applied force (kN) 0.01 0.03 0.05 0.08 0.10 Page 3 of 6 (a) Draw the Mohr circle for each stress state in the sample and the total stress path (TSP) throughout the test and determine the slope of the TSP to the horizontal.
A sand cone in place unit test was conducted on the field during the construction of the embanklment in CALAX. The following data were obtained in the field: Moisture content of soil from the test hole+ 12.8% ; Weight of sand to fill the funnel(cone) = 320g; Weight of weight soil from the test hole= 750g; Unit weight of sand= 15.4 kN/m3 and Weight of sand used to fill the test hole and thefunnel of sand-cone device=870 g. Compute for the relative compaction (in percent) in the field if the maximum dry unit weight of the soil is 21.30 kN/m3.

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