A cylindrical undisturbed sample of soil was taken from a borrow area and tested giving the following results: Dimensions of the sample: Diameter = 48mm, Length = 100mm Initial mass of the sample: m = 344gr Mass of the sample after drying: mj-296gr The soil from the borrow pit is to be used as compacted backfill in a 100m long trench having a width of 528mm and a depth of 1500mm. The soil is to be compacted into the trench at a total unit weight of 22.0kN/m³ and a moisture content of 11%. (a) Determine the volume of soll V₁ (in m³) that will need to be excavated from the borrow area in order V₁- Your last answer was interpreted as follows: (b) how much is the degree of saturation of the compacted materials? (in %) S,= Your last answer was interpreted as follows. provide sufficient soll for the compacted fill (Assume G, -2.65 and -9.8kN Open block drawer

The following data has been obtained from a standard Proctor test conducted on a silty clay soil. The maximum dry unit weight = 17.5 kN/m³; Optimum water content = 12.5% The construction specifications require a relative compaction of 95% and field compaction water content to be within ±2% if the optimum. A sand cone test was performed to measure the dry unit weight and water content achieved during the field compaction operation. The volume of the test hole has been already been calculated from the sand cone data Volume of test hole = 1.5x10-3 m³. Total weight of moist soil removed from hole = 2.73 kg %3D Weight of soil removed from hole after drying = 2.46 kg Use conversion 1.0kg = 0.01 KN Determine the following: %3D a. Field water content (%) = Report to ONE decimal (Show work in hand-calc sheet) b. Has the compaction specifications met with respect to compaction water content? Say YES or NO c. Field dry unit weight (kN/m3) = Report to ONE decimal (Show work in hand-calc sheet) d.…

An in-situ density test on a 542.5 cm³ soil sample was conducted. The total weight of the sample at the site was 801.3 gr. Soil samples of the test were collected and moisture content was determined to be 4.5%. Assuming G, = 2.71 determine: (a) The in-situ unit weight of the soil in kN/m³. (b) The void ratio of the soil. (c) The porosity of the soil. (d) The degree of saturation.

Sand cone equipment is used to perform a field density on compacted earth fill. Sand is used in the cone and is known to have a bulk density of 15 kN/m3. The wet weight of soil sample from the test hole is 20.601 N. The dry weight of soil sample is 17.926 N. The weight of the sand in the sand cone to fill the test hole is 16.053 N. Determine the in-place dry density in kN/m3 of the tested soil.