From a standard Proctor laboratory sample of soil Gs= 2.70; maximum dry unit weight = 16.4 kN/m3; Optimum moisture content= 18%; Moisture content of soil at the borrow site+ 28%. Specification require that compaction of soil must be at least 95% of the maximum obtained from the proctor test. Compute the maximum compaction expected from the compacted soil using the zero air boids curve for this soil with the following moisture contents: w1= 20%; w2= 25%; w3= 30%. O a. 94.71% O b. 96.54% O. 92.07% O d. 90.12%

From a standard Proctor laboratory sample of soil Gs= 2.70; maximum dry unit weight = 16.4 kN/m3; Optimum moisture content= 18%; Moisture content of soil at the borrow site+ 28%. Specification require that compaction of soil must be at least 95% of the maximum obtained from the proctor test. Compute the maximum compaction expected from the compacted soil using the zero air boids curve for this soil with the following moisture contents: w1= 20%; w2= 25%; w3= 30%. O a. 94.71% O b. 96.54% O. 92.07% O d. 90.12%

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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A field – compact sample of sandy loam was found to have a wet density of 110.4 b/ft3 at a water content of 14%. The maximum dry density of the soil obtained in a Standard Proctor Test (SPT) was 99.6 b/ft3. Assuming specific gravity of soil sample to be 2.6, determine the percent compaction of the field.
2. A saturated soil with specific gravity of solids equal to 2.65 has a unit weight of 19KN /m^3. Determine the dry unit weight (KN/m^3) and porosity of the soil sample.
PROBLEM 13: A soil sample has a maximum dry unit weight of 125 Ib/ft?. If the sample has wet unit weight of 135 Ib/ft?, Gs =2.65, moisture content w =11%. Compute the percent compaction in the field a. 97.3% C. 89.67% b. 94.13% d. 93.23%
ral condition a soil sample has a mass of 2290 g and a volume of 1.15x10*m. After being completely dried in an oyen the mass of the sample is 2035 g. The value of G. for the soil is 2.68. Determine: (1) Bulk density,
9. The field unit weight of the soil sample is 1960 kg/m³, and the unit weight of the soil particle is 2700 kg/m³. If emax=0.69 and emin = 0.44. a) Compute the dry unit weight if the water content is 11% b) Compute the void ratio of the soil sample. c) Compute the relative density of the soil sample.
Question 13 The compaction of a soil obtained from a standard compaction test is shown in the attached figure. At OMC (optimum moisture content) the degree of saturation = 93 %. What is the highest possible dry unit weight for this soil to have when the moisture content is 9 %? P (1+w) 20.0 1 10 Pa(s) 19.5 19.0 18.5 18.0 Dry unit weight, y, [kN/m³] 17.5 17.0 16.5 16.0 6 7 8 9 14. 1 10 11 12 13 14 Water content, w, [%] 15 16 G.P 1+ wG S 17 18
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