Soil Classification

Question $3(20\mathrm{.}0$ Point$)$

If a soil has the following particle size distribution:

Gravel: $5\%$

Sand: $20\%$

Silt: $45\%$

Clay: $30\%$

Classify the soil according to textural classification system.

Question $4(20\mathrm{.}0$ Point$)$

Classify the following soils provided in Table $2$ according to AASHTO classification system.

Table $2$: Sieve analysis and Atterberg limit Results for different soil samples.

$\backslash$table$[[$Soil$,\backslash$table$[[$Sieve$-$Analysis$],[$Percent Passing $(\%)]],\backslash$table$[[$Liquid$],[$Limit$]],\backslash$table$[[$Plasticity$],[$Index$]]],[$No$.10,$No$.40,$No$.200],[$A$,90,48,22,31,13],[$B$,42,28,12,18,11],[$C$,80,68,48,30,11],[$D$,98,80,72,52,21]]$