1. Classify the following soil to be used as a highway subgrade material using AASHTO method. Sieve Analysis % Finer No. 10 sieve = 88% No. 40 sieve =75% No. 200 sieve = 34 % %3D

- Once answered correctly will UPVOTE!!

Classify the soil sample using USDA Textural Classification System if the sample has the following particle size distribution. Gravel = 18 % Silt = 11 % Sand = 66 % Clay = 5 % O Loamy Sand O sity Loam O Sandy Loam O sity Clay

• Problem 1- . Classify the soil to be used as a highway subgrade material using AASHTO classification system; Sieve No. No. 4 No. 10 No. 20 No. 40 No. 60 No. 140 No. 200 Size opening (mm) 4.75 2.00 0.850 0.425 0.250 0.140 0.075 % Finer 100 92 84 69 50 40 37 Liquid limit for soil passing # 40 sieve was determine to be 40% and plasticity index was 20%.