A sandy soil has a maximum void ratio (emax) of 0.63 and a minimum void ratio...
The bulk unit weight of a dry soil with void ratio 0.63 is 16.5 kN/m3. Its Specific gravity is most likely a) 2.52 b) 2.63 c) 2.74 d) 1.92
An embankment is to be constructed using a sandy soil from a borrow pit. In a standard compaction test on a soil (grain specific gravity of 2.7) the following results were obtained: Water content (%) Y kN/m3 6.2 16.9 8.1 18.7 9.8 19.5 11.5 20.5 12.3 20.4 13.2 20.1 The volume of the mould is 1000 cm3 Determine the maximum dry density obtainable under standard test conditions and the water content at which this occurs Discuss the techniques of quality...
A proctor test was performed on a soil that has a specific gravity of solids of 2.71. The following results were obtained: Water content Total Unit 1. Finish calculation and plot Weight (Ib/ftA3) compaction curve 10 13 16 2. What is the max. dry unit weight? 3. What is the optimum moisture 106 119 125 129 128 123 content? What range of moisture is permitted if a contractor must achieve 90% compaction? 4. 20 5. What volume of water must...
3. Modified Proctor compaction test results for a soil at a construction site indicated that the maximum dry density Ya = 120 lb/A’ at an optimum water content wopt = 9.0%. Assuming specific gravity of the mineral solids Ga=2.67, calculate: (a) the void ratio at the maximum dry density (b) the degree of saturation S at maximum dry density.
2. [10] A segment of interstate highway requires the construction of an embankment of 500,000 yds. The embankment fills to be compacted to a minimum of 90% of Modified Proctor maximum dry density. A source of suitable borrow has been located for construction of the embankment. Tests showed that the required dry density can be achieved with the existing moisture content of the borrow pit material. The following data is provided: Dry unit weight of soil in the borrow pit...
I need help on this Geotechnical Engineering its due today W = V V = W, = -- Air Water Solid Figure 3.13 3.4 During a compaction test in the geotechnical laboratory, the students com- pacted a clayey soil into a cylindrical mold 4 in. in diameter and 4.58 in. in height. The compacted soil in the mold weighed 4 lb, and it had a moisture content of 12%. If G = 2.72, determine the following: a. Dry unit weight...
3. Modified Proctor compaction test results for a soil at a construction site indicated that the maximum dry density ya = 125 lb/ft at an optimum water content Wopt = 9.5%. Assuming specific gravity of the mineral solids G=2.65, calculate: (a) the void ratio at the maximum dry density (b) the degree of saturation Sat maximum dry density.
the only question to answer are 2-5 2-7 2-10 2-17 2-19 thank you CHAPTER Two 2-3. An undisturbed chunk of soil has a wet weight of 62 lb and a volume of o.s6 ft. When dried out in an oven, the soil weighs S0 Ib. If the specific gravity o solids is found to be 2.64, determine the water con- tent, wet unit weight of soil, dry unit soil. 2-13. The wet unit weight of a soil sample is 18.55...
Void ratio for a rate of compaction of 95.0% the soil solids have a specific gravity of 2.78. Modified Proctor Test 130.0 125.0 120.0 Dry Unit Weight (pcf) 115.0 110.0 105.0 0.0 5.0 15.0 20.0 10.0 w (%)
1. (a) Briefly describe what is meant by the terms compaction and consolidation [5 marks] (b) In a standard B.S. compaction test, the following data was collected Moisture Content Bulk Density (Mg/m3) 1.87 2.04 2.13 2.20 2.16 2.09 $$5 8 10 13 16 19 Particle specific gravity 2.7 (i)Use a graph to find the maximum dry density and optimum moisture content of the soil shown above [10 marks] (ii) On the same graph, plot the zero and 5% air void...