2.3 The following are the results of a sieve analysis: Mass of soil retained (g) 28 42 48 U.S. sieve no. 4 10 20 40 60 100 200 Pan 128 221 86 40 24 ⒸCengage Learning 2014 a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b. Determine D₁0, D30, and D60 from the grain-size distribution curve. c. Calculate the uniformity coefficient, C d. Calculate the coefficient of gradation, C.

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

2.8 2.7 The following are the results of a sieve and hydrometer analysis. Sieve number/ grain size Analysis Sieve Hydrometer Analysis Sieve 40 80 170 200 0.04 mm 0.02 mm 0.01 mm 0.005 mm 0.0015 mm Hydrometer Sieve number/ grain size Percent finer than a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt, and clay according to the MIT system. c. Repeat Part b according to the USDA system. d. Repeat Part b according to the AASHTO system. Repeat Problem 2.7 with the following data: 20 30 40 60 80 200 0.05 mm 0.03 mm 0.015 mm 0.006 mm 0.004 mm 0.0015 mm 100 96 85 80 59 39 26 15 8 Cengage Learning 2014 Percent finer than 100 96 90 76 65 34 27 19 11 7 6 5 Ⓒ Cengage Learning 2014