A clay sample has a plastic limit of 8% and liquid limit of 58%. Determine the plasticity index of the clay. Determine the liquidity index if the natural moisture content is 30%. What is measured by plastic limit and liquid limit?

A sample of gray silty clay has a mass of 126 kg. Laboratory tests results give a moist density(ρ) of 2.05 g/cm3, a specific gravity of solids (Gs) of 2.67, and a moisture content (w) of 14.7%.First determine all entries in the phase diagram. Then determine the void ratio (e), the porosity(n), the degree of saturation (S), the dry density (ρd), the dry unit weight (γd), and the moistunit weight (γ).

A sand sample has a porosity of 30% and specific gravity of solids as 2.6. What is its degree of saturation at moisture content of 4.94%?

sample of gray silty clay has a mass of 126 kg. Laboratory tests results give a moist density (ρ) of 2.05 g/cm3, a specific gravity of solids (Gs) of 2.71, and moisture content (w) of 15.7%.   First determine all entries in the phase diagram. Then determine the void ratio (e), the porosity (n), the degree of saturation (S), the dry density (ρd), the   dry unit weight (Ƴd), and the moist unit weight (Ƴ)

4.15 The following results were obtained from a liquid limit test on a clay using the Casagrande cup device. Number of blows 6 12 20 28 32 Water content (%) 52.5 47.1 43.2 38.6 37.0 (а) Determine the liquid limit of this clay. (b) If the natural water content is 38% and the plastic limit is 23%, calculate the liquidity index. (c) Do you expect a brittle type of failure for this soil? Justify your answer.

An undisturbed sample of fine sand is tested in the laboratory and found to have a dry mass of 3.23 kg, a total volume of 0.00187 m3and a specific gravity of 2.65. Other laboratory tests are performed to determine the maximum and minimum density for the sand. At the maximum density, it is determined that the void ratio is 0.38; at the minimum density, the void ratio is 0.85. Determine the relative density of the undisturbed sample.

A wet sand sample has a volume of 4.64 x 10-4 m3 and weighs 8 N. After oven-drying, the weight reduces to 7.5 N. Calculate the water content, void ratio, and degree of saturation.

An undisturbed sample of sand has a dry weight of 4.20 lb and occupies a volume of 0.038 ft3. The soil solids have a specific gravity of 2.75. Laboratory tests performed to determine the maximum and minimum densities indicate void ratios of 0.42 at the maximum density and 0.92 at the minimum density. Compute the relative density of this material.

A sample of silty sand in its natural conditions had a volume of 120cm3 and weighed 149g. After saturating the sample with water, it weighed 188g. The sample was then drained by gravity until it reached a constant weight of 133g. Finally the sample was oven dried for 2 days at 221 degrees fahrenheit after which it weighed 120 g. Note that the volume of the voids in the sample under natural conditions is the volume of water in the sample at saturation. Assuming that the density of water is 1 g/cc. Perform the following calculations: a)  Water content on a mass basis under natural conditions b)  Specificyield c)  Specific retention d)  Totalporevolume e)  Porosity under natural conditions

A clay is found to have a liquid limit of 75%, a plastic limit of 45% and the shrinkage limit of 25%. If the sample of this soil has a volume of 30cm3 at the liquid limit and a volume at the shrinkage 16.7cm3 at the shrinkage limit. Determine the following: a) Mass of soil at shrinkage limit. [ Select ] b) Shrinkage Ratio. [ Select ] c) Specific gravity of soil solids. [ Select ] > >