Q3. (a) The following results are obtained from a Standard Proctor compaction test: Mass of soil (kg) Moisture content (%) 1.791 8.4 1.937 10.6 2.038 12.9 2.050 14.4 2.022 16.6 1.985 18.6 The specific gravity of the solids is 2.70, pw= 1000kg/m' and the volume of the compaction mould is 0.945 x 10³m³. Plot the compaction curve and obtain the maximum dry density (MDD) and optimum moisture content (OMC).

Q: a sample of silty sand in a 150 mm diameter mold. The maximum dry unit weight is 19.6 kN/m3 and…

A: According to given data  A modified proctor compaction test is performed on a sample of silty sand…

Q: 2. The resulting of the Standard Proctor Test is as follows: Vol. of Proctor Mold Wt. of wet soil in…

A: Find the corresponding dry densities of the given water content results from Standard Proctor Test…

Q: Draw the compaction curve using the following given data from a standard Proctor test. 2. From…

A: Objective: To draw the compaction curve for the given Standard Proctor Test results, and determine…

Q: Following are the results of a field unit weight determination test on the same soil with the sand…

A: Soil compaction is a process in which the soil retains mechanical pressure and is compacted. The…

Q: 2. Interpret the results of the proctor test in table 1 and plot the images of the optimum moisture…

A: Given,Soil mass vs water content data Gs = 2.7FindRange of moisture cintent values in the field that…

Q: A compacted fill with a unit weight of 121 lb/ft^3 and a moisture content of 12.5% will be used for…

A: The dry unit weight of the soil in compacted fill is calculated as, γd=γb1+w=1211+0.125=107.56…

Q: Results of a standard Proctor compaction test on a silty sand are shown in the below figure. Dry…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: 1. Using phase relationships and the assumption that the volume of solids is 1.0, show WGs = Se.

A:

Q: A sample of the soil tested in triaxial with dimensions of 38 mm diameter and 76 mm height, its…

A: Diameter of cylinder, Height of cylinder, Mass of sample before drying, Mass of sample after drying,

Q: A soil sample is sampled from a job site. Its maximum dry density tested in a lab=106 pcf. If the…

A: %Relative compaction=γdryfγdrymax×100

Q: An oven dry sand mass with a dry unit weight of 105pcf and Gs of 2.70 is placed outdoors in a…

A: Given data, Dry unit weight Yd = 105 Pcf G = 2.70 To find :- unit weight of soil after rain

Q: Find the degree of Saturation at the above conditions ?

A: Given data- G=2.65

Q: A constant head permeability test is performed on soil that is 4 cm2, and 2.5cm long. The head…

A:

Q: The container 393 M A-Determine the optimum moisture content and the maximum dry unit weight B-what…

A: Givenwt of container = 20 Nwt of compacted soil (N) = wt of container and compacted soil (N) - wt of…

Q: Plot the moisture density curve and determine the maximum dry unit weight of compaction and the…

A: See density curve belowMaximum dry unit weight of compaction = 120.3 lb/ft^3Optimum moisture content…

Q: A modified Proctor compaction test was carried out using a cylindrical mold with a 1000 ml volume.…

A: Wet densityρ=Wet massVolumeDry densityρd=ρ1+wZero AIr voidZAV DensityρZAV=ρwGS1+wGSExample:at…

Soil Compaction Test

Soil compaction is the major area of geotechnical engineering. Soil is composed of multiple pores present on its surface, while the soil is mainly composed of gravel, sand, rocks, etc. The arrangement of these rocks and gravels is such that they build up voids (spaces) between them, which allows spaces for the roots of the plants and crops to spread and absorb the required amount of nutrients. Soil compaction is a major problem primarily caused by human activities, micro-organisms, and other multiple factors.