A series of modified Proctor tests have been performed on a soil that has a Gs of 2.68. The test results obtained are as follows. Point No. Weight of Compacted Soil + Mass of Mass of Can + Moisture Content Test Results Mass of Can + Dry Mold (lb) Can (g) Moist Soil (g) 1 8.73 22.13 207.51 2 9.07 25.26 239.69 3 9.40 19.74 253.90 4 9.46 23.36 250.93 5 9.22 20.28 301.47 Soil (g) 202.30 225.27 230.64 219.74 250.95 The weight of the empty mold was 5.06 lb. Plot the laboratory test results and the S = 80% and S = 100% curves, and then draw the modified Proctor compaction curve. Determine the maximum dry unit weight (lb/ft³) and the optimum moisture content, based on the modified Proctor test. Assuming that the field compaction curve is the same as the compaction curve obtained using the modified Proctor test, determine the range of as-compacted moisture content required in the field to obtain a relative compaction of at least (a) 90%, and (b) 95%.
A series of modified Proctor tests have been performed on a soil that has a Gs of 2.68. The test results obtained are as follows. Point No. Weight of Compacted Soil + Mass of Mass of Can + Moisture Content Test Results Mass of Can + Dry Mold (lb) Can (g) Moist Soil (g) 1 8.73 22.13 207.51 2 9.07 25.26 239.69 3 9.40 19.74 253.90 4 9.46 23.36 250.93 5 9.22 20.28 301.47 Soil (g) 202.30 225.27 230.64 219.74 250.95 The weight of the empty mold was 5.06 lb. Plot the laboratory test results and the S = 80% and S = 100% curves, and then draw the modified Proctor compaction curve. Determine the maximum dry unit weight (lb/ft³) and the optimum moisture content, based on the modified Proctor test. Assuming that the field compaction curve is the same as the compaction curve obtained using the modified Proctor test, determine the range of as-compacted moisture content required in the field to obtain a relative compaction of at least (a) 90%, and (b) 95%.
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter4: Plasticity And Structure Of Soil
Section: Chapter Questions
Problem 4.3P
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 1 steps
Recommended textbooks for you
Principles of Geotechnical Engineering (MindTap C…
Civil Engineering
ISBN:
9781305970939
Author:
Braja M. Das, Khaled Sobhan
Publisher:
Cengage Learning
Fundamentals of Geotechnical Engineering (MindTap…
Civil Engineering
ISBN:
9781305635180
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Principles of Geotechnical Engineering (MindTap C…
Civil Engineering
ISBN:
9781305970939
Author:
Braja M. Das, Khaled Sobhan
Publisher:
Cengage Learning
Fundamentals of Geotechnical Engineering (MindTap…
Civil Engineering
ISBN:
9781305635180
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning