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%.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Q16. The data in the accompanying table resulted from performing Standard Proctor Tests on a soil. Plot the data and determine the soil's laboratory optimum moisture content. Dry Density Ib/ft3 Moisture Content 12 103.1 14 106.2 16 108.9 18 112.8 20 110.5 22 105.5
1. The results of a standard Proctor test are given in Table Q1 below. Determine the maximum dry density of soil compaction and the optimum moisture content. Table Q1 Volume of Proctor Mass of wet soil in the mold Moisture content mold (cm³) (kg) 3.39 (%) 11.5 987 987 3.87 13.5 987 4.22 15.5 987 5.11 17.5 987 4.75 19.5 987 4.31 21.5
Following are the results of a field unit weight determination test on a soil using the Sand Cone Method. Determine the field unit weight of the soil. FEEDBACK GUARANTEED
The following data were obtained from a soil sample. Determine the degree of saturation. MOISTURE CONTENT DETERMINATION |Sample 1 Sample 2 Sample 3 48.2 Wt of tin cup (g) Wt. of tin cup + Wet Soil (g) Wt. of tin cup and dry soil (g) 50.1 53.3 118.1 126.7 121.5 103.6 109.4 107.6 UNIT WEIGHT DETERMINATION Wt of wet soil (g) Wt of wet soil + paraffin (g) Volume of wet soil + paraffin (mL) 158.6 165.0 101.4 SPECIFIC GRAVITY OF SOLIDS DETERMINATION Wt of pycnometer (g) Wt of pycnometer + solids (g) Wt of water-filled pycnometer (g) Wt of pycnometer + solids + water (g) 102.0 206.0 339.0 405.6 71.1% 74.9% 68.3% O 75.6%
Question 36 The data shown below are the results of a liquid limit test done on a soil. Moisture Content (%) Cone Penetration (mm) 25 11 30 16 34 22 37 28 41 30 What is the consistency index of the soil if plastic limit is 17 and water content is 22%? Round off to two decimal places.
- My courses > Soil-20-21 > Topic 3: Soil Compaction > Compaction Quiz The data in the table below was gotten from modified Proctor test for a soil sample having G,-2.62 w (%) 10 12 14 17 19 23 1.15 1.07 0.94 0.83 0.88 0.92 What is the degree of compaction if the field dry unit weight is 13.2 kN/m' and field moisture content is 9% ? O a. 71.3% Ob. 100% Oc. 94% Od. 80%
The data shown below are the results of a liquid limit test done on a soil. Moisture Content (%) Cone Penetration (mm) 26 10 31 15 34 23 38 26 43 30 What is the consistency index of the soil if plastic limit is 18 and water content is 21%? Round off to two decimal places.
Following are the results of a field unit-weight determination test performed on the same soil by means of the sand cone method: -Calibrated dry unit weight of Ottawa sand = 15.4019 kn/m3 -Calibrated weight of Ottawa sand to fill the cone = 5.3496 N -Weightof jar + cone + sand (before use) = 74.451 N -Weightof jar + cone + sand (after use) = 46.886 N -Weight of moist soil from hole = 29.509 N -Moisture content of moist soil = 10.21% DETERMINE AND SHOW COMPLETE SOLUTION 1. Dry density of compaction in the field in kg/cu.m.
Please Help! Once answered will Upvote!!
37 The data shown below are the results of a liquid limit test done on a soil. Moisture Content (%) Cone Penetration (mm) 27 11 29 18 33 24 39 28 41 30 What is the consistency index of the soil if plastic limit is 17 and water content is 26%? Round off to two decimal places.
23 The data shown below are the results of a liquid limit test done on a soil. Moisture Content (%) Cone Penetration (mm) 25 10 30 16 35 22 38 27 42 30 What is the consistency index of the soil if plastic limit is 12 and water content is 27%? Round off to two decimal places.
Problem 1.2.1: The data below were obtained with tension device from two soils of unknown texture. Suction (en) 0 10 20 50 100 300 1000 10,000 20,000 100,000 Water content Soil A Soil B 44 44 43.9 38 22.5 12.5 7 5.2 5.1 4.9 52 52 52 31 48 32 20 13.5 13 128 Answer the following questions: 1. Which soil has a higher porosity? 2. What is the bulk density of the two samples? (Assume that the density of solids comprising both samples is ps = 2.65gm/cm³.) 3. What is estimated water content in the two samples at suction 15cm?