A series of modified Proctor tests have been performed on a soil that has a G, of 2.68. The test results obtained are as follows. Point Weight of Compacted Soil + Moisture Content Test Results Mass of Mass of Can + Mass of Can + Dry No. Mold (lb) Can (g) Moist Soil (g) Soil (g) 12345 8.73 22.13 207.51 202.30 9.07 25.26 239.69 225.27 9.40 19.74 253.90 230.64 9.46 23.36 250.93 219.74 9.22 20.28 301.47 250.95 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 G, of 2.68. The test results obtained are as follows. Point Weight of Compacted Soil + Moisture Content Test Results Mass of Mass of Can + Mass of Can + Dry No. Mold (lb) Can (g) Moist Soil (g) Soil (g) 12345 8.73 22.13 207.51 202.30 9.07 25.26 239.69 225.27 9.40 19.74 253.90 230.64 9.46 23.36 250.93 219.74 9.22 20.28 301.47 250.95 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
Related questions
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 5 steps with 13 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Principles of Geotechnical Engineering (MindTap C…
Civil Engineering
ISBN:
9781305970939
Author:
Braja M. Das, Khaled Sobhan
Publisher:
Cengage Learning
Principles of Geotechnical Engineering (MindTap C…
Civil Engineering
ISBN:
9781305970939
Author:
Braja M. Das, Khaled Sobhan
Publisher:
Cengage Learning