Using the Unified Soil Classification System classify the following three soils: Sieve size Soil 1 Soil 2 Soil 3 % finer % finer % finer No.4 99 97 81 No.10 92 90 70 No.40 86 40 49 No.100 78 9 35 No.200 60 4 32 LL (%) PL (%) 42 40 60 20 30 28 Cu 34 1.8 800 C. 1.6 0.95 0.2 Note: gravel size is defined by particle size between 4.75mm (#4 sieve) and 75mm. Equation of A-line: Pl = 0.73 (LL - 20%).

Soil engineering is a part of geotechnical engineering that deals with the characteristics of soil. It also helps to understand the behavior of the soil in different conditions. The basic concepts of soil are studied to check the strength, compressibilit…