2 Classify soils A D E H K N and P in the shown table Figure

2. Classify soils A, D, E, H. K, N, and P in the shown table (Figure 1-30 in textbook) using 1) Unified System (USCS) and 2) AASHTO system. Describe briefly steps used to classify for soil. Copies of the attached log-scale sheet might be used to plot the grain-size distribution of soils (if needed) Hint: w and Ir are the liquid limit and plasticity index of the soils, respectively. (N.P) means non- plastic or plasticity index equals to zero. Stze 38 mm ( 1 ½ in ) 19 min (3/4 in) 100 9,5 mm (3/8 in.)95 .75 mm (No. 486 2.00 mm (No. 10)71 100 850 m (No. 20) 57 91 425 n (No. 40) 146 70 150pm(No.100)| 33 20 75n(No200) | 26 8 100 85 72 100 100 100 100 100 80 51 40 29 42 29 100 22 100 87 94 71 51 51 44 39 82 77 57 40 100 72 73 56 55 66 100 100 100 36 18 33 13 100 82 99370100 32 81 10 89 27 366 42 41 61 48 35 30 8 NP1 0 36 88NP 2219 N.P S3 N.P8 50 39 32 33 13 41 82

Solution

Unified Soil Classification System -

STEP 1- COMPARE THE SOIL PASSING THROUGH NO-4 AND NO-200 SIEVE AND CHECK THE LIQUID LIMIT OF SOIL.

STEP 2-  Use Soil Plasticity chart as per Unified soil classification system.

AASHTO Soil Classification System- COMPARE THE SOIL PASSING THROUGH NO-200 SIEVE AND CHECK THE LIQUID LIMIT AND PLSTICITY INDEX OF SOIL.

SOIL	USCS CLASSIFICATION	AASHTO CLASSIFICATION
A	ML+OL	A-2-6
D	MI+OI	A-5
E	MH+OH	A-7-5
H	SW	A-3
K	ML+OL	A-2-6
N	CL+ML	A-1-a
P	GM	A-4