SOIL CLASSIFICATION. Sarik Salim. Soil Classification System . Soil classification system is important in geotechnical engineering because it provide systematic method of categorizing soil according to their probable engineering behavior.
GI= (F-35)[0.2+0.005(LL-40)]+0.01 (F-15)(PI-10)
F the percentage of particles passing sieve NO.200
LL is the liquid limit
PI is the plasticity Index