Computing Relative Compaction from Sand Cone Data Sand Cone Test Results: ● ● ● ● ● Initial mass of sand cone apparatus = 5.912 kg Final mass of sand cone apparatus = 2.378 kg Mass of soil recovered from hole = 2.883 kg Moisture content of soil from hole = 7% Density of sand = 1300 kg/m³ Volume of cone below valve = 1.114 x 10-³ m³ Laboratory optimum moisture content 11.8% and maximum dry unit weight is 19 kN/m³ Project requires RC ≥ 90% Standard Proctor Compute dry unit weight and RC.

Computing Relative Compaction from Sand Cone Data Sand Cone Test Results: ● ● ● ● ● Initial mass of sand cone apparatus = 5.912 kg Final mass of sand cone apparatus = 2.378 kg Mass of soil recovered from hole = 2.883 kg Moisture content of soil from hole = 7% Density of sand = 1300 kg/m³ Volume of cone below valve = 1.114 x 10-³ m³ Laboratory optimum moisture content 11.8% and maximum dry unit weight is 19 kN/m³ Project requires RC ≥ 90% Standard Proctor Compute dry unit weight and RC.

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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3.15 In a deposit of normally consolidated dry sand, a cone pen- etration test was conducted. Following are the results: 316 Depth (m) 1.5 3.0 4.5 6.0 7.5 9.0 Point of resistance of cone, q. (MN/m²) 2.06 4.23 6.01 8.18 9.97 12.42 Assuming the dry unit weight of sand to be 16 kN/m³, estimate the average peak friction angle, d', of the sand. Use Eq. (3.56). Rofar
Question 16 The results of a constant head permeability test for a fine sand are as follows Diameter of the sample = 33 cm Length of sample 55 cm Constant head difference =74 cm Time of collection 580 secs Weight of water collected = 382 grams Find the seepage velocity in cm/min. if the void ratio is 0 38. Round off to four decimal places. SUS WE R
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.
A sand cone test was conducted in the field. The mass of wet soil excavated from the hole is 3668.3g with a moisture content of 17.2%. Before and after the test, the sand cone apparatus weighed 10154.0g and 5749.4g. The cone can contain 1680g of Ottawa Sand (ρ=1.353g/cc). If the maximum dry density of the soil is 1.702g/cc, calculate the relative compaction.
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. a. 94 b. 90 c. 88 d. 92
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. a.94 b.88 c.92 d.90 With FBD if necessary
Example 1 A sand come test has been performed in a competed fill made with the soil described in 21 example 6.1 20 Ydmax 19.0 kN/m³ 19 95% (Yd,max) 18 17 =18.1 kN/m³ S=100% Wo -11.8% 16 0 5 7% 10 w (%) 15 16% 20 25 Initial mass of sand cone apparatus = 5.912 kg Final mass of sand cone apparatus = 2.378 kg Mass of soil recovered from hole = 2.883 kg Moisture content of soil from hole = 7.0% Density of sand = 1300 kg/m³ Volume of cone below valve = 1.114 x 10-3 m³
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.
During a subsoil exploration program, undisturbed normally consolidated silty clay samples were collected in Shelby tubes from location A as shown in Figure below 2 m G.W.T Silty sand e = 0.72; G, = 2.69 2.2 m 3.5 m Silty clay w = 22%; G, = 2.72 5.25 m Poorly graded sand = 19.8 kN/m³ 2.6 m Ysat Following are the results of four drained, direct shear tests conducted on the
A sand cone test was conducted in the field. The mass of wet soil excavated from the hole is 3668.3g with a moisture content of 17.2%. Before and after the test, the sand cone apparatus weighed 10154.0g and 5749.4g. The cone can contain 1680g of Ottawa Sand (ρ=1.353g/cc). Solve the dry density of the soil sample.
A sand-cone in place unit test was conducted on the field during the construction of a proposed embankment. The following data were obtained. moisture content=12.8% weight of sand to fill the funnel=320 g weight of wet soil from test hole=750 g unit weight of sand=15.4 kN/m3 weight of sand used to fill test hole and funnel of sand-cone device=870 g a) compute the wet unit weight of soil (Ans. 21.14 kN/m3) b) compute the dry unit weight of the compacted soil (Ans. 18.74 kN/m3) c) compute the relative compaction in the field if the maximum dry unit weight of the soil is 21.3 kN/m3. (Ans. 87.98%)
18 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 = 221 kPa Deviator Stress = 134 kPa Pore Water Pressure = 80 kPa Determine the drained angle of inclination of failure plane in degrees. Round off to two decimal places.