Following are the results of a field unit weight determination test on a soil using the Sand Cone Method. Determine the field unit weight of the soil. FEEDBACK GUARANTEED Calibration:Determination of mass of sand to fill the cone:Mass of jar + cone + sand (before use) = 6.25 kgMass of jar + cone +sand (after use) = 6.09 kgDetermination of dry density of the sand:Mass of jar + cone + sand (before use) = 6.28 kgMass of jar + cone + sand (after use) = 4.62 kgVolume of the mold=943.333 cm³Determination of the field unit weight:Mass of jar + cone + sand (before use) = 6.27 kgMass of jar + cone + sand (after use) = 3.18 kgMass of excavated moist soil from the hole = 3.58kgMoisture content of the moist soil = 11.24%Field Test:

Solution Given: Calibration: Weight of Jar + Cone + Sand (before use), W1=6.25kg Weight of Jar +…

Calibration: of mass of sand to fill the cone: Mass of jar + cone + sand (before use) = 6.25 kg Mass of jar + cone +sand (after use) = 6.09 kg Mass of jar + cone + sand (before use) = 6.28 kg Mass of jar + cone + sand (after use) = 4.62 kg Volume of the mold = 943.333 cm³ Mass of jar + cone + sand (before use) = 6.27 kg Mass of jar + cone + sand (after use) = 3.18 kg Mass of excavated moist soil from the hole = 3.58 kg Moisture content of the moist soil = 11.24% Determination Determination of dry density of the sand: Field Test: Determination of the field unit weight:

Calibration: of mass of sand to fill the cone: Mass of jar + cone + sand (before use) = 6.25 kg Mass of jar + cone +sand (after use) = 6.09 kg Mass of jar + cone + sand (before use) = 6.28 kg Mass of jar + cone + sand (after use) = 4.62 kg Volume of the mold = 943.333 cm³ Mass of jar + cone + sand (before use) = 6.27 kg Mass of jar + cone + sand (after use) = 3.18 kg Mass of excavated moist soil from the hole = 3.58 kg Moisture content of the moist soil = 11.24% Determination Determination of dry density of the sand: Field Test: Determination of the field unit weight:

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. 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.
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