Show complete solutions.Ang graph using Excel. · Soil Compaction1. A sand cone test was conducted for quality control during the compaction of a sandy clay. The data are asfollows:Calibration to find dry unit weight of the standard sandMass of Proctor moldMass of Proctor mold and sandVolume of moldCalibration of sand cone9.2 lb12.4 lb0.0335ftMass of sand cone apparatus and jar filled with sandMass of sand cone apparatus with remaining sand in jarSand cone test results12.1 lb8.3 lbMass of sand cone apparatus and jar filled with sandMass of excavated soil16.3lb4.9 lbMass of sand cone apparatus with remaining sand in jarWater content of excavated soil8.6lb5.9%Determine the Dry Unit Weightb.a.The Standard Proctor MDD of the sandy clay is 117.8 pcf at an OMC of 7.2%. The specficiation requires95% Proctor dry unit weight at acceptable water contents ranging from 5% to 8.5%. Is the Specification met?Justify your answers

The data for a sand cone test of sandy clay are:-Mass of proctor mold = 9.2 lbMass of Proctor mold…

- Soil Compaction 1. A sand cone test was conducted for quality control during the compaction of a sandy clay. The data are as follows: a. b. Calibration to find dry unit weight of the standard sand Mass of Proctor mold Mass of Proctor mold and sand Volume of mold Calibration of sand cone Mass of sand cone apparatus and jar filled with sand Mass of sand cone apparatus with remaining sand in jar Sand cone test results Mass of sand cone apparatus and jar filled with sand Mass of excavated soil Mass of sand cone apparatus with remaining sand in jar Water content of excavated soil 9.2lb 12.4lb 0.0335f 12.1lb 8.3lb 16.3lb 4.9lb 8.6lb 5.9% Determine the Dry Unit Weight The Standard Proctor MDD of the sandy clay is 117.8 pcf at an OMC of 7.2%. The specficiation requires 95% Proctor dry unit weight at acceptable water contents ranging from 5% to 8.5%. Is the Specification met? Justify your answers

- Soil Compaction 1. A sand cone test was conducted for quality control during the compaction of a sandy clay. The data are as follows: a. b. Calibration to find dry unit weight of the standard sand Mass of Proctor mold Mass of Proctor mold and sand Volume of mold Calibration of sand cone Mass of sand cone apparatus and jar filled with sand Mass of sand cone apparatus with remaining sand in jar Sand cone test results Mass of sand cone apparatus and jar filled with sand Mass of excavated soil Mass of sand cone apparatus with remaining sand in jar Water content of excavated soil 9.2lb 12.4lb 0.0335f 12.1lb 8.3lb 16.3lb 4.9lb 8.6lb 5.9% Determine the Dry Unit Weight The Standard Proctor MDD of the sandy clay is 117.8 pcf at an OMC of 7.2%. The specficiation requires 95% Proctor dry unit weight at acceptable water contents ranging from 5% to 8.5%. Is the Specification met? Justify your answers

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter5: Soil Compaction

Section: Chapter Questions

Problem 5.2P

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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 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
In a constant head test, the sample of sand was collected 150 cm3 of water in just two minutes. The diameter is 5.08 centimeters, the length was 10 centimeters, and the head was maintained at 20 cm. 1) Determine the coefficient of permeability (Ans. 3.08 x 10-2 cm/s) 2) Determine the kind of soil (Ans. Coarse Sand) 3) Determine the interstitial velocity if n=0.3 (Ans. 0.21 cm/s)
arrow_forward Question A fine-grained soil has 60% clay with LL 220%, PL 545%, and a natural water content of 6%. A standard Proctor test was carried out in the laboratory and the following data were recorded Diameter of mold = 101.40 mmHeight of mold = 116.70 mmMass of mold = 4196.50 gramSpecific gravity, Gs = 2.69 a) Determine the maximum dry unit weight and optimum water content.b) If the desired compaction in the field is 95% of the standard Proctor test results, what values of dry unit weight and water content would you specify?c) Explain why you select these values.d) What field equipment would you specify to compact the soil in the field, and why?e) How would you check that the specified dry unit weight and water content are achieved in the field? I Need The Answer of part (d) and (e)...
9. The results of a Standard Proctoretest is tabulated as follows: (CHECK PICTURE) Determine the maximum dry unit weight of compaction Determine the void ratio at the optimum moisture content Gs = 2.68 Determine the optimum moisture content Determine the degree of saturation at the optimum moisture content
8. The max and min dry unit weights of the sand were determined in the laboratory to be 16.5 kN/m3 and 14.6 kN/m3 respectively. The relative density of compaction in the field of the same sand is 70%. What is the relative compaction? (Ans: 96%) What is the dry unit weight? (Ans: 15.84 kN/m3 ) What is the moist unit weight at a moisture content of 10%. (Ans: 17.42 kN/m3 )
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%)
Following are the results of a field unit weight determination test performed bymeans of the sand cone method:• Calibrated dry density of Ottawa sand = 104 lb/ft3• Mass of Ottawa sand to fill the cone = 0.258 lb• Mass of jar + cone + sand (before use) = 13.21 lb• Mass of jar + cone + sand (after use) = 6.2 lb• Mass of moist soil from hole = 7.3 lb• Moisture content of moist soil = 11.6%Determine: Dry unit weight of compaction in the field.
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 dry unit weight of the compacted soil in kN/m3. a.17.80 b.18.74 c.20.08 d.21.14
The max and min dry unit weights of sand were determined in the laboratory to be 16.5 kN/m3 and 14/6 kN/m3 respectively. The relative density of the compaction in the field of the same sand is 70% What is the moist unit weight at a moisture content of 10%? a. 16.22 b. 15.84 c. 16.50 d. 17.42
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.