Classify the following soils by the AASHTO classification system: Soil A Soil B Soil C Percent finer than #10 sieve 83 100 48 Percent finer than #40 sieve 48 90 28 Percent finer than #200 sieve 20 86 Liquid limit Plasticity Index 20 65 5 32 non plastic

Classify the following soils by AASHTO classification system. Percent finer than (sieve analysis) Liquid Limit Plasticity Index Soil No. 4 No. 10 No. 40 No. 200 1 95 82 55 41 32 12 94 80 51 15 26 12 Silty-Clay Materials (more than 35 % passing No. 200 sieve) A-7 General Granular Materials Highly Organic Classification (35 % or less passing No 200 sieve) A-1 A-2 Group Classification A-1-a A-1-b A-3 A-2-4 A-2-5 A-2-6 A-2-7 A-4 A-5 A-6 A-7-5 A-8 A-7-6 Sieve Analysis percent passing: # 10 < 50 # 40 # 200 S 30 5 50 s 51 <15 25 $10 <35 35 s 35 35 236 2 36 2 36 236 Characteristics of fraction passing #40 Liquid limit Plasticity index < 40 241 40 241 NP3 <40 241 40 241 2 11 11 10 <10 211 211 < 10 <6 Stone <10 Usual types of signifcant constituent materials fragments; gravel and sand Fine Peat or sand Silty or clayey gravel and sand Sity soils Clayey soils muck General ratins as Excellent to good Fair to Poor Unstable subgrade VI VI VI VI VI

7. Classify the following soils according to the AASHTO Soil Classification with Group Index (GI) Soil A B No. 4 95 100 Percent passing U.S. sieve No. 10 No. 20 No. 40 No. 60 No. 100 No. 200 86 65 52 46 38 25 98 95 88 82 75 65 LL PL 38 65 22 58

Problem D: For problems 14 to 17. Classify the following soils by the AASHTO classification System. Description A D Percent finerthan No. 4 sieve 100 | 92 100 94 Percent finerthan No. 10 sieve 100 85 80 80 Percent finerthan No. 40 sieve 96 71 78 51 Percent finerthan No. 200 sieve 72 56 59 15 Liquid Limit Plasticity Index 16) Soil A is ? 58 35 42 26 23 19 13 12 a) A-7-5(19) b) A-2-6 (0) c) A-7-6 (18) d) A-7-5 (18) 17) Soil Bis ? a) A-6(13) b) A-7-5(0) c) A-6 (7) d) A-6 (8) 18) Soil Cis ? a) A-7-6(5) 19) Soil D is ? a) A-2-6(2) b) A-7-6 (8) c) A-7-6 (7) d) A-7-6(6) b) A-3 (0) c) A-2-6 (0) d) A-2-6 (2)