A Standard Proctor Test was completed according to Method A described in Chapter 12. The following laboratory data was obtained: Mass of mold = Mass of moist specimen and mold = Volume of compaction mold = Mass of container= 51.5g Mass of container plus moist soil= 261.85g Mass of container plus oven-dried soil- 231.83g Determine the Moisture content, w. (expressed as a percentage, 1 decimal place) Your Answer: 1.98 kg 3.718 kg 0.0009438m3 4

A Standard Proctor Test was completed according to Method A described in Chapter 12. The following laboratory data was obtained: Mass of mold = Mass of moist specimen and mold = Volume of compaction mold = Mass of container= 51.5g Mass of container plus moist soil= 261.85g Mass of container plus oven-dried soil- 231.83g Determine the Moisture content, w. (expressed as a percentage, 1 decimal place) Your Answer: 1.98 kg 3.718 kg 0.0009438m3 4

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Situation 5: Following is the result of a standard proctor test. Proctor mold Volume (cm³) 943.3 943.3 943.3 943.3 943.3 Unit Weight Trial 1 2 5 6 7 8 943.3 943.3 943.3 Mass of wet soil in Moisture content the mold (KG) 1.68 1.71 1.77 1.83 1.86 1.88 1.87 1.85 (56) 9.9 10.6 12.1 13.8 15.1 17.4 9 19.4 21.2 5d. Plot the compaction curve using the following plane, make sure to label the y-axis with the dry unit weights. Compaction Curve Water Content 5b. What is maximum dry unit weight and its corresponding water content? 5c. Considering a requirement of 97% compaction, what is the minimum dry unit weight that must be achiewed and what are the water contents that correspond to this dry unit weight?
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Situation 3. Following are the results of a sieve analysis. Determine: a. Cu b. Cc c. So Sieve No. 4 6 10 20 40 60 100 200 Pan Diameter (mm) 4.760 2.380 2.000 0.840 0.420 0.250 0.149 0.074 Soil Sample Mass Retained (g) 100 180 86 160 105 134 110 65 45
The results of a Standard Proctor test are given in the following table. Moist Weight of Wet Sol Moisture Content in the mold (Ib) Trial (%) 26 4.08 28 4.12 30 4 4,18 32 Determine: 1. Maximum dry unit weight in Ib/ft^3 (4 decimal places) 2. Optimum water content in % (4 decimal places)
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Q.2) Answer the following question. 1- The sieve analysis below was done for which type Weight of sample = 2000gm Sieve size in. (mm) 3/8" 9.5 mm No.4 4.75 mm No.8 2.36 mm No.16 1.18 mm No.30 0.6 mm No.50 0.3 mm No.100 0.15 mm Pan Percent Weight retained (g) retained 0 2000*100 94 →0 Klcc→ -2000 4032000X100 358-2009 08 72 2212000x100 Percent cumulative @ 4.7 20 i 75 982 57 360 72000 Alco isies 39 492-20000 24.614 · 100 > 95 3 of aggregate. Percent passing 0 5 25 уз 61 86 97 317 ASTM Limit 100 95_100 80_100 40 85 25_60 10_30 2_10
Problem 4: The following are the results of a sieve analysis. a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b. Determine D10, D30, D60, for the soil. c. Calculate the uniformity coefficient Cu. d. Calculate the coefficient of gradation Cc. U.S. Sieve N 4 10 20 40 60 100 200 Pan U.S. Sieve N Mass of Soil Retained (g) Problem 5: Repeat problem 4 with the following data. 4 6 10 20 40 60 100 200 Pan 0 18.5 53.2 90.5 81.8 92.2 58.5 26.5 Mass of Soil Retained (g) 0 0 0 9.1 249.4 179.8 22.7 15.5 23.5