Problem 3: A highway embankment is to be constructed along the North Diversion road using soil from a selected borrow pit.DPWH specifications state that soil must be placed in layers and compacted to at least 95% of the maximum density. Also the water should be added to the fill so that the soil is compacted at the optimum moisture content. A laboratory test to determine maximum density and optimum moisture content has been conducted by placing a small sample of this soil into a steel cylinder and compacting it with a drop hammer. The volume of the cylinder is 0.00094 cu.m. The following data has been obtained from this test. Test No. Wet Weight (KN) | Moisture Content (%) 1 14.94 7 2 16.36 11 3 17.93 16 4 18.28 24
Problem 3: A highway embankment is to be constructed along the North Diversion road using soil from a selected borrow pit.DPWH specifications state that soil must be placed in layers and compacted to at least 95% of the maximum density. Also the water should be added to the fill so that the soil is compacted at the optimum moisture content. A laboratory test to determine maximum density and optimum moisture content has been conducted by placing a small sample of this soil into a steel cylinder and compacting it with a drop hammer. The volume of the cylinder is 0.00094 cu.m. The following data has been obtained from this test. Test No. Wet Weight (KN) | Moisture Content (%) 1 14.94 7 2 16.36 11 3 17.93 16 4 18.28 24
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Transcribed Image Text:1. What is the maximum unit weight which must be obtained in the embankment to meet the required specifications of the DPWH.
2. What is the optimum moisture content.
3. How many liters of water per cu.m. should be added to the fill material to reach optimum moisture content and 100% max. Density
if the initial moisture content of the soil is 10% (dry weight basis).
Transcribed Image Text:Problem 3: A highway embankment is to be constructed along the North Diversion road using soil from a selected borrow pit.DPWH
specifications state that soil must be placed in layers and compacted to at least 95% of the maximum density. Also the water should be
added to the fill so that the soil is compacted at the optimum moisture content. A laboratory test to determine maximum density and
optimum moisture content has been conducted by placing a small sample of this soil into a steel cylinder and compacting it with a
drop hammer. The volume of the cylinder is 0.00094 cu.m. The following data has been obtained from this test.
Test No. Wet Weight (KN) | Moisture Content (%)
1
14.94
7
2
16.36
11
3
17.93
16
4
18.28
24
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